SEC Filing | ManTech International Corporation

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As filed with the Securities and Exchange Commission on December 31, 2001

Registration No. 333-73946

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SECURITIES AND EXCHANGE COMMISSION

AMENDMENT NO. 1

FORM S-1
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
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MANTECH INTERNATIONAL CORPORATION
(Exact name of registrant as specified in its charter)

Delaware 7373 22-1852179
(State or other jurisdiction (Primary Standard Industrial Classification (I.R.S. Employer
of incorporation or organization) Code Number) Identification No.)

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ManTech International Corporation
12015 Lee Jackson Highway
Fairfax, VA 22033-3300
(703) 218-6000
(Address, including zip code, and telephone number, including area code, of
registrant's principal executive offices)
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George J. Pedersen
Chairman, Chief Executive Officer
and President
ManTech International Corporation
12015 Lee Jackson Highway
Fairfax, VA 22033-3300
(703) 218-6000
Fax: (703) 218-6301
(Name, address, including zip code, and telephone number, including area code,
of agent for service)
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Copies to:

John F. Olson Robert G. Robison
Ronald O. Mueller Sharon L. Ferko
Gibson, Dunn & Crutcher LLP Morgan Lewis & Bockius LLP
1050 Connecticut Avenue, N.W. 101 Park Avenue
Washington, D.C. 20036 New York, NY 10178
(202) 955-8500 (212) 309-6000
Fax: (202) 467-0539 Fax: (212) 309-6273
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Approximate date of commencement of proposed sale to the public: As soon as
practicable after this registration statement becomes effective.

If any of the securities being registered on this form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box. [_]

If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_]

If this form is a post-effective amendment filed pursuant to Rule 462(c) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]

If this form is a post-effective amendment filed pursuant to Rule 462(d) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]

If delivery of the prospectus is expected to be made pursuant to Rule 434,
check the following box. [_]
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CALCULATION OF REGISTRATION FEE

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Proposed
Maximum
Title of each class of Aggregate Amount of
securities to be registered Offering Price(1)(2) Registration Fee
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Class A common stock, $0.01 par value per share $92,000,000 $23,000

(2) Includes shares issuable upon exercise of the underwriters' over-allotment
option.

The registrant hereby amends this registration statement on such date or dates
as may be necessary to delay its effective date until the registrant shall file
a further amendment which specifically states that this registration statement
shall thereafter become effective in accordance with Section 8(a) of the
Securities Act of 1933 or until the registration statement shall become
effective on such date as the Commission acting pursuant to such Section 8(a)
may determine.

The information in this prospectus is not complete and may be changed. These
securities may not be sold until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an
offer to sell these securities and it is not soliciting an offer to buy these
securities in any state where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED DECEMBER 31, 2001.

[LOGO] Management Technology ManTech International
Corporation

ManTech International Corporation

Class A Common Stock

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We are offering shares of our Class A common stock and the selling
stockholder identified in this prospectus is offering shares of our
Class A common stock through a syndicate of underwriters. The underwriters also
have an option to purchase up to an additional shares of Class A common
stock from us and the selling stockholder solely to cover over-allotments. We
will not receive any of the proceeds from the sale of shares by the selling
stockholder.

This is our initial public offering. The initial public offering price of
our Class A common stock is expected to be between $ and $ per share. We
are applying to list our Class A common stock on The Nasdaq Stock Market's
National Market under the symbol "MANT."

Investing in our common stock involves risks. See "Risk Factors" beginning
on page 7.

Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

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Per Share Total
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Public offering price............................ $ $
Underwriting discount............................ $ $
Proceeds to us (before expenses)................. $ $
Proceeds to selling stockholder (before expenses) $ $

The underwriters expect to deliver the shares to purchasers on or about ,
2002.

Jefferies & Company, Inc.

Legg Mason Wood Walker
Incorporated

BB&T Capital Markets

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The date of this prospectus is , 2001.

[INSIDE FRONT COVER ART.]

1. Inside Left Page:

The ManTech logo is positioned in the upper left corner of the page,
written in solid black lettering blending into white-on-red lettering, divided
with horizontal white lines. Beneath the logo is a caption reading, "Supporting
U.S. Intelligence Community and Department of Defense Customers in Responding
to the Challenges of Emerging Global Threats."

The lower right one-third of the page is solid red in the shape of a half
circle with three photos positioned in outlined circles in the center of the
red section against a white background. Above the circles a caption reads,
"Managing Technology for a Changing World" in which the word "World" curves
around the first quarter of the right-hand circle.

The left circle contains a picture of a satellite ground station. Beneath
this circle a caption reads "Secure Systems and Infrastructure Solutions." The
center circle contains a picture of a CD ROM with an image of binary code
superimposed in light blue. Beneath this circle a caption reads, "Information
Technology Solutions." The right circle contains a picture of the Hubble Space
Telescope taken from space. Beneath this circle a caption reads, "Systems
Engineering Solutions."

Centered at the bottom of the page is the text "ManTech International
Corporation."

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TABLE OF CONTENTS

Page
----

Prospectus Summary................................................................... 1
Risk Factors......................................................................... 7
Use of Proceeds...................................................................... 18
Dividend Policy...................................................................... 18
Capitalization....................................................................... 19
Dilution............................................................................. 20
Selected Financial Data.............................................................. 21
Management's Discussion and Analysis of Financial Condition and Results of Operations 24
Business............................................................................. 33
Management and Key Employees......................................................... 50
Principal and Selling Stockholder.................................................... 59
Related Party Transactions........................................................... 60
Registrar and Transfer Agent......................................................... 62
Shares Eligible for Future Sale...................................................... 62
Description of Capital Stock, Certificate of Incorporation and Bylaws................ 64
Tax Considerations................................................................... 68
Underwriting......................................................................... 71
Validity of Common Stock............................................................. 74
Experts.............................................................................. 74
Where You Can Find More Information.................................................. 74
Index to Consolidated Financial Statements........................................... F-1

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Through and including , 2002, which is the 25th day after the date of
this prospectus, all dealers effecting transactions in the Class A common
stock, whether or not participating in this distribution, may be required to
deliver a prospectus. This is in addition to the obligation of dealers to
deliver a prospectus when acting as underwriters and with respect to their
unsold allotments.

You should rely only on the information contained in this document. We have
not authorized anyone to provide you with information that is different. This
document may only be used where it is legal to sell these securities. The
information in this document may only be accurate on the date of this document.

PROSPECTUS SUMMARY

This summary highlights information contained elsewhere in this prospectus.
This summary may not contain all of the information that you should consider
before deciding to invest in our Class A common stock. We urge you to read this
entire prospectus carefully, including the "Risk Factors" section and our
consolidated financial statements and the notes to those statements. Unless
otherwise indicated, information presented in this prospectus assumes no
exercise of the underwriters' over-allotment option and assumes the occurrence
of the transactions described in "Corporate Structure" on page 3.

ManTech International Corporation

ManTech International Corporation delivers a broad array of information
technology and technical services solutions to U.S. federal government
customers, focusing primarily on critical national defense programs for the
intelligence community and Department of Defense. We design, develop, procure,
implement, operate, test and maintain mission-critical, enterprise information
technology and communication systems and infrastructures for federal government
customers in the United States and 28 countries worldwide. More than 1,700 of
our nearly 3,500 employees hold government security clearances, including over
600 with access to Top Secret Sensitive Compartmented Information, allowing us
to work with our customers in highly classified environments and at front-line
deployments. We have established and maintain long-standing, successful
relationships with our customers, having supported many of them for 15 to 30
years. Given the critical nature of many of our services and our close
relationships with our customers, we are often called upon to support our
customers as they respond to crisis situations around the world.

We provide comprehensive information technology and technical services
solutions, separately or in combination, to our customers by drawing upon three
principal areas of expertise: secure systems and infrastructure; information
technology; and systems engineering. In some cases, our work under a single
contract draws upon two or all three of our areas of expertise. We provide
these solutions for sophisticated airborne, shipboard, satellite and tactical
and strategic land-based communication and information systems and
intelligence-processing activities.

. As part of our secure systems and infrastructure solutions, we conduct
vulnerability assessments of critical infrastructures that enable our
customers to identify evolving foreign and domestic threats, which may
include espionage, terrorist activities and other intelligence
operations, to quantify exposure to these threats and to implement
prudent countermeasures. We also design, implement and maintain secure
communication systems, computer networks and other information assurance
programs, and develop and integrate signal processing systems that assist
our government customers in their intelligence gathering activities.

. As part of our information technology solutions, we integrate diverse
technologies into customized systems that meet a variety of customer
needs. We design and implement electronic data interchange systems and
network infrastructures that help sustain or extend our customers'
existing proprietary or legacy systems and provide enhanced capabilities
based on new technology platforms. We also provide systems support for
customers' critical information management systems.

. As part of our systems engineering solutions, we analyze and assist in
designing, developing, integrating and installing hardware and software
for communication, intelligence, electronic

warfare and information systems. We also test and certify complex
military systems hardware and software and orbital payloads and perform a
variety of environmental research and testing functions for federal
government customers.

Since our founding in 1968, we have grown from supplying engineering
services to the U.S. Navy to providing sophisticated information technology and
technical services solutions to a wide range of federal government customers.
For both the year ended December 31, 2000 and the nine months ended September
30, 2001, approximately 84.0% of our revenues were derived from our customers
in the intelligence community and Department of Defense. Among these customers
are a number of agencies and departments that the government identifies at
www.cia.gov/ic as being part of the U.S. intelligence community, including the
Department of State and a number of offices within the Department of Defense.
Our other Department of Defense customers include the Office of the Secretary
of Defense, the Army, Navy, Air Force and Marine Corps, and a number of joint
military commands.

We also provide comprehensive information technology and technical services
solutions to federal government civilian agencies, including the National
Aeronautics and Space Administration (NASA), the Environmental Protection
Agency (EPA) and the Departments of Justice, Commerce and Energy. Additionally,
we provide business enterprise solutions to state and local governments and
database conversion solutions to commercial customers.

Our Market Opportunity

The federal government has consistently increased spending on information
technology each year since 1980 and is the largest purchaser of these services
and products. This trend of increased spending is expected to continue over the
next five years as federal government spending on information technology
increases from $36.4 billion in 2001 to $60.3 billion in 2006, a compound
annual growth rate of 10.6%. Moreover, this data may not fully reflect
government spending on complementary technical services, which include
sophisticated systems engineering and testing services. We believe that strong
growth opportunities exist for information technology and technical services
providers who serve the government market because the federal government is:

. Increasing defense spending focused on C4I (command, control,
communication, computers and intelligence), homeland defense and
intelligence activities;

. Adopting commercialized procurement methods that promote the use of
efficient contracting vehicles, such as government- or agency-wide
pricing schedule contracts that are negotiated and awarded by the General
Service Administration (GSA) and other central contracting authorities;

. Increasing reliance on technology service providers to deliver
cost-effective solutions and to address staffing challenges facing the
government; and

. Focusing on modernizing proprietary legacy information technology and
communication infrastructures.

Our Approach

We seek to address the requirements of our customers in the intelligence
community and Department of Defense through our:

. Comprehensive technology-based solutions;

. Expertise in the migration, integration, optimization and maintenance of
proprietary legacy systems used by the federal government and ability to
enhance the interoperability and accessibility of critical enterprise
data;

. More than 1,700 employees with government security clearances, which are
required for work on classified programs for the intelligence community
and Department of Defense;

. Proven track record of fulfilling our customers' requirements,
demonstrated by our many long-standing customer relationships; and

. Extensive experience of our management team and advisory board members in
supporting our customers in the intelligence community and Department of
Defense.

Our Strategy

Our objective is to profitably grow our business as a premier provider of
comprehensive information technology and technical services solutions to the
federal government, focusing primarily on customers in the intelligence
community and Department of Defense. To achieve our objective, we intend to:

. Expand our customer base by capitalizing on our existing customer
relationships and reputation and pursuing strategic acquisitions to
attract new customers and to cross-sell solutions and products to
existing and new customers, and by selectively hiring key individuals
with additional customer relationships;

. Increase profitability by focusing our contract bidding and new business
development efforts on specialized services that can generate higher
value-added solutions, such as threat exposure analysis and systems
architecture design, and on more efficient and flexible contract
vehicles, such as GSA schedule contracts;

. Target our service offerings in high growth program areas, including
safeguarding critical infrastructures and information assurance for the
intelligence community and Department of Defense;

. Continue to attract and retain skilled professionals, including
engineers, scientists, analysts, technicians and support specialists, who
possess a wide range of technical skills and prior experience with the
intelligence community or Department of Defense; and

. Pursue a disciplined acquisition strategy focused on businesses that
support the intelligence community and Department of Defense, expand our
service offerings and establish relationships with new customers.

Corporate Structure

Our principal executive offices are located at 12015 Lee Jackson Highway,
Fairfax, Virginia 22033-3300. Our telephone number at that address is (703)
218-6000. Our website can be visited at www.mantech.com. Information contained
on our website is not part of this prospectus.

The Offering

The share information contained below excludes the shares reserved for
issuance under our Management Incentive Plan and our Employee Stock Purchase
Plan.

Class A common stock offered by us......... shares.

Class A common stock offered by our selling
stockholder.............................. shares.

Class A common stock to be outstanding shares.
immediately after this offering..........

Class B common stock to be outstanding shares.
immediately after this offering..........

Use of proceeds............................ We expect to use the net proceeds of this
offering to repay a portion of our existing
indebtedness, to fund strategic acquisitions of
businesses and for working capital and for
general corporate purposes. See "Use of
Proceeds" on page 18.

Over-allotment option...................... We and one of our existing stockholders have
granted the underwriters an option to purchase
up to an additional shares solely to cover
over-allotments.

Proposed Nasdaq symbol..................... MANT

Risk Factors

See "Risk Factors" beginning on page 7 for a discussion of material risks
that prospective purchasers of our Class A common stock should consider.

Summary Financial Data

The following summarizes our historical consolidated financial information.
We derived the information as of and for each of the five years ended December
31, 2000 and for the nine months ended September 30, 2001 from our audited
consolidated financial statements. The data for the nine months ended September
30, 2000 is derived from our unaudited consolidated financial statements and
includes all adjustments, consisting of normal and recurring adjustments, that
we consider necessary for a fair presentation of the financial position and
results of operations as of and for such periods. Interim consolidated
financial results for the nine months ended September 30, 2000 and September
30, 2001 are not necessarily indicative of the results that may be expected for
the full year. You should read the summary financial data presented below in
conjunction with our consolidated financial statements, the notes to our
consolidated financial statements and "Management's Discussion and Analysis of
Financial Condition and Results of Operations."

Nine Months Ended
Year Ended December 31, September 30,
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1996 1997 1998 1999 2000 2000 2001
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(In thousands, except per share amounts)

Statement of Income Data:
Revenues..................................... $223,049 $286,051 $314,309 $353,924 $378,827 $280,970 $316,266
Cost of services............................. 191,589 245,857 265,189 296,306 315,414 234,834 258,412
Gross profit................................. 31,460 40,194 49,120 57,618 63,413 46,136 57,854
Income from operations....................... 7,019 10,381 13,447 15,168 18,589 12,695 22,237
Income from continuing operations............ 3,077 5,438 2,921 6,796 7,125 5,113 12,160
(Loss) income from discontinued operations(1) (1,039) 255 (1,268) (2,727) (4,667) (3,124) (6,533)
Loss on disposal of discontinued operations.. (93) -- -- -- (719) (719) (5,890)
-------- -------- -------- -------- -------- -------- --------
Net income (loss)............................ $ 1,945 $ 5,693 $ 1,653 $ 4,069 $ 1,739 $ 1,270 $ (263)
======== ======== ======== ======== ======== ======== ========
Income from continuing operations per share -
diluted(2)..................................
Net income (loss) per share - diluted........

Balance Sheet Data:
Cash and cash equivalents.................... $ 13,276 $ 17,318 $ 14,572 $ 19,571 $ 29,578 $ 11,366 $ 18,231
Total assets................................. 108,705 154,886 165,718 186,070 186,843 176,736 177,061
Long-term debt............................... 37,642 49,135 66,377 72,005 73,000 69,075 66,668
Total stockholders' equity................... 12,506 16,831 15,515 19,548 21,794 21,433 21,402

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(1) We have decided to exit certain lines of business so that we can continue
to enhance our core competencies. For more information on our discontinued
operations, please see "Management's Discussion and Analysis of Financial
Condition and Results of Operations--Discontinued Operations" and note 15
to our consolidated financial statements.

(2) Prior to the closing of this offering, we anticipate that our board of
directors and stockholders will approve a -for-one stock split for the
outstanding shares of our common stock.

Transactions Prior to the Offering

Termination of Personal Service Corporation Status. For periods prior to
the closing of this offering, we had elected to be taxed as a personal service
corporation. As a result, we accounted for our earnings on a cash basis for
federal income tax purposes. Effective as of the closing of this offering, our
status as a personal service corporation terminates and we will apply
accrual-based accounting for federal income tax purposes. The termination of
our personal service corporation status will result in $31.0 million in
deferred income being recognized for tax purposes. Taxes on this amount
totaling $12.1 million will be due with respect to the four taxable years
beginning with the taxable year of this offering. Because we previously
recognized the deferred income for accounting purposes and accrued for the
taxes, this change in our tax status and the tax payments will not affect our
earnings.

Reincorporation and Recapitalization. We are incorporated in Delaware and
are the successor by merger to ManTech International Corporation, a New Jersey
corporation. See "Description of Capital Stock--Certificate of Incorporation
and Bylaws." As of the effective date of the merger, which will occur prior to
the closing of this offering, each outstanding share of the New Jersey
corporation's common stock will be exchanged for one share of our Class A
common stock or Class B common stock. For purposes of this prospectus, the
merger of the New Jersey corporation with the Delaware corporation is assumed
to be effective, other than with respect to the historical consolidated
financial statements. Prior to this offering, we also will effect a -for-one
stock split of our Class A common stock and Class B common stock.

RISK FACTORS

Before making an investment in our Class A common stock you should
carefully consider the risks described below, as well as the other information
set forth in this prospectus, including our consolidated financial statements
and related notes. Some of the following risks relate principally to the
industry in which we operate and to our business. Other risks relate
principally to the securities markets and ownership of our stock. Additional
risks and uncertainties not presently known to us, or risks that we currently
consider immaterial, may also impair our operations. Any of the risk factors
described below could significantly and negatively affect our business,
prospects, financial condition or operating results, which could cause the
trading price of our Class A common stock to decline and could cause you to
lose all or part of your investment.

RISKS RELATED TO OUR BUSINESS

We are dependent on contracts with the U.S. federal government for
substantially all of our revenues.

For the year ended December 31, 2000 and for the nine months ended
September 30, 2001, we derived 96.1% and 95.8%, respectively, of our revenues
from federal government contracts, either as a prime contractor or a
subcontractor. For 2000 and for the nine months ended September 30, 2001, we
derived 83.6% and 84.1%, respectively, of our revenues from contracts with
agencies in the intelligence community and Department of Defense. We expect
that federal government contracts will continue to be the primary source of our
revenues for the foreseeable future. If we were suspended or debarred from
contracting with the federal government generally, or any significant agency in
the intelligence community or Department of Defense, if our reputation or
relationship with government agencies were impaired, or if the government
otherwise ceased doing business with us or significantly decreased the amount
of business it does with us, our business, prospects, financial condition or
operating results could be materially harmed.

Federal government spending priorities may change in a manner adverse to our
business.

Our business depends upon continued federal government expenditures on
intelligence, defense and other programs that we support. The overall U.S.
defense budget declined from time to time in the late 1980s and the early
1990s. While spending authorizations for intelligence and defense-related
programs by the government have increased in recent years, and in particular
after the September 11, 2001 terrorist attacks, future levels of expenditures
and authorizations for those programs may decrease, remain constant or shift to
programs in areas where we do not currently provide services. A significant
decline in government expenditures, or a shift of expenditures away from
programs that we support, could adversely affect our business, prospects,
financial condition or operating results.

Federal government contracts contain provisions that are unfavorable to us.

Federal government contracts contain provisions and are subject to laws and
regulations that give the government rights and remedies not typically found in
commercial contracts, including allowing the government to:

. Terminate existing contracts for convenience, as well as for default;

. Reduce or modify contracts or subcontracts;

. Cancel multi-year contracts and related orders if funds for contract
performance for any subsequent year become unavailable;

. Decline to exercise an option to renew a multi-year contract;

. Claim rights in products and systems produced by us;

. Suspend or debar us from doing business with the federal government or
with a governmental agency; and

. Control or prohibit the export of our products.

If the government terminates a contract for convenience, we may recover
only our incurred or committed costs, settlement expenses and profit on work
completed prior to the termination. If the government terminates a contract for
default, we may not recover even those amounts, and instead may be liable for
excess costs incurred by the government in procuring undelivered items and
services from another source. As is common with government contractors, some of
our contracts have had or are currently experiencing performance issues. We
have received and may in the future receive show cause or cure notices under
contracts that, if not addressed to the government's satisfaction, could give
the government the right to terminate those contracts for default or to cease
procuring our services under those contracts in the future.

We must comply with complex procurement laws and regulations.

We must comply with and are affected by laws and regulations relating to
the formation, administration and performance of federal government contracts,
which affect how we do business with our customers and may impose added costs
on our business. For example, we are subject to the Federal Acquisition
Regulations and all supplements, which comprehensively regulate the formation,
administration and performance of federal government contracts, and to the
Truth in Negotiations Act, which requires certification and disclosure of cost
and pricing data in connection with contract negotiations. If a government
review or investigation uncovers improper or illegal activities, we may be
subject to civil and criminal penalties and administrative sanctions, including
termination of contracts, forfeiture of profits, suspension of payments, fines
and suspension or debarment from doing business with federal government
agencies, which could materially adversely affect our business, prospects,
financial condition or operating results. From time to time in the past, we
have been subject to government investigations. Currently, we are subject to
three on-going investigations. For additional information regarding the
government investigations to which we are currently subject, see
"Business--Legal Proceedings." In addition, we are subject to industrial
security regulations of Department of Defense and other federal agencies that
are designed to safeguard against foreigners' access to classified information.
If we were to come under foreign ownership, control or influence, our federal
government customers could terminate or decide not to renew our contracts, and
it could impair our ability to obtain new contracts. The government may reform
its procurement practices or adopt new contracting rules and regulations,
including cost accounting standards, that could be costly to satisfy or that
could impair our ability to obtain new contracts.

We face competition from other firms, many of which have substantially greater
resources.

We operate in highly competitive markets and generally encounter intense
competition to win contracts. We compete with many other firms, ranging from
small specialized firms to large diversified firms, many of which have
substantially greater financial, management and marketing resources than we do.
Our competitors may be able to provide customers with different or greater
capabilities or benefits than we can provide in areas such as technical
qualifications, past contract performance, geographic presence, price and the
availability of key professional personnel. Our failure to compete effectively
with respect to any of these or other factors could have a material adverse
effect on our business, prospects, financial condition or operating results. In
addition, our competitors also have established or may establish relationships
among themselves or with third parties to increase their

ability to address customer needs. Accordingly, it is possible that new
competitors or alliances among competitors may emerge.

We derive significant revenues from contracts awarded through a competitive
bidding process.

We derive significant revenues from federal government contracts that were
awarded through a competitive bidding process. For example, in each of the past
three fiscal years, each of our ten largest contracts, in terms of revenues,
was awarded through a competitive bidding process. Much of the business that we
expect to seek in the foreseeable future likely will be awarded through
competitive bidding. Competitive bidding presents a number of risks, including
the:

. Need to bid on programs in advance of the completion of their design,
which may result in unforeseen technological difficulties and cost
overruns;

. Substantial cost and managerial time and effort that we spend to prepare
bids and proposals for contracts that may not be awarded to us;

. Need to accurately estimate the resources and cost structure that will be
required to service any contract we are awarded; and

. Expense and delay that may arise if our competitors protest or challenge
contract awards made to us pursuant to competitive bidding, and the risk
that any such protest or challenge could result in the resubmission of
bids on modified specifications, or in termination, reduction or
modification of the awarded contract.

We may not be provided the opportunity in the near term to bid on contracts
that are held by other companies and are scheduled to expire if the government
determines to extend the existing contract. If we are unable to win particular
contracts that are awarded through the competitive bidding process, we may not
be able to operate in the market for services that are provided under those
contracts for a number of years. If we are unable to consistently win new
contract awards over any extended period, our business and prospects will be
adversely affected.

Failure to maintain strong relationships with other contractors could result in
a decline in our revenues.

For 2000 and for the nine months ended September 30, 2001, we derived 7.8%
and 8.4%, respectively, of our revenues from contracts in which we acted as a
subcontractor to other contractors or to joint ventures which we and other
contractors have formed to bid on and execute particular contracts or programs.
We expect to continue to depend on relationships with other contractors for a
portion of our revenues in the foreseeable future. Our business, prospects,
financial condition or operating results could be adversely affected if other
contractors eliminate or reduce their subcontracts or joint venture
relationships with us, either because they choose to establish relationships
with our competitors or because they choose to directly offer services that
compete with our business, or if the government terminates or reduces these
other contractors' programs or does not award them new contracts.

We may not receive the full amount authorized under contracts that we have
entered into and may not accurately estimate our backlog and GSA schedule
contract value.

The maximum contract value specified under a government contract that we
enter into is not necessarily indicative of revenues that we will realize under
that contract. For example, we derive some of our revenues from government
contracts in which we are not the sole provider, meaning that the government
could turn to other companies to fulfill the contract, and from indefinite
delivery, indefinite quantity contracts, which specify a maximum but only a
token minimum amount of goods or

services that may be provided under the contract. In addition, Congress often
appropriates funds for a particular program on a yearly basis, even though the
contract may call for performance that is expected to take a number of years.
As a result, contracts typically are only partially funded at any point during
their term, and all or some of the work to be performed under the contracts may
remain unfunded unless and until Congress makes subsequent appropriations and
the procuring agency allocates funding to the contract. Nevertheless, we look
at these contract values, including values based on the assumed exercise of
options relating to these contracts, in estimating the amount of our backlog.
Because we may not receive the full amount we expect under a contract, we may
not accurately estimate our backlog. Similarly, in recent years we have been
deriving an increasing percentage of our revenues under GSA schedule contracts.
GSA schedule contracts are procurement vehicles under which government agencies
may, but are not required to, purchase professional services or products. As a
result, we believe that potential GSA schedule contract values are not fully
reflected in traditional backlog calculations. We have developed a method of
calculating GSA schedule contract value that we use to evaluate estimates for
the revenues we may receive under our GSA schedule contracts. Although we
believe our method of determining GSA schedule contract value is based on
reasonable estimates and assumptions, our experience with GSA schedule
contracts has been limited to date. We are not currently aware of other
companies within our market that employ comparable methods of determining GSA
schedule contract value. Estimates of future revenues included in backlog and
GSA schedule contract value are not necessarily precise and the receipt and
timing of any of these revenues are subject to various contingencies, many of
which are beyond our control. For a discussion of these contingencies see
"Business--Backlog and GSA Schedule Contract Value." The actual accrual of
revenues on programs included in backlog and GSA schedule contract value may
never occur or may change.

We may not accurately estimate the expenses, time and resources necessary to
satisfy our contractual obligations.

We enter into three types of federal government contracts for our services:
cost-plus, time-and-materials and fixed-price. For the nine months ended
September 30, 2001, we derived 36.3%, 35.6% and 28.1% of our revenues from
cost-plus, time-and-materials and fixed-price contracts, respectively. For
2000, the revenues were 39.7%, 34.6% and 25.7%, respectively. Under cost-plus
contracts, we are reimbursed for allowable costs and paid a fee, which may be
fixed or performance-based. To the extent that the actual costs incurred in
performing a cost-plus contract are within the contract ceiling and allowable
under the terms of the contract and applicable regulations, we are entitled to
reimbursement of our costs, plus a profit. However, if our costs exceed the
ceiling or are not allowable under the terms of the contract or applicable
regulations, we may not be able to recover those costs. Under
time-and-materials contracts, we are reimbursed for labor at negotiated hourly
billing rates and for certain expenses. We assume financial risk on
time-and-material contracts because we assume the risk of performing those
contracts at negotiated hourly rates. Under fixed-price contracts, we perform
specific tasks for a fixed price. Compared to cost-plus contracts, fixed-price
contracts generally offer higher margin opportunities, but involve greater
financial risk because we bear the impact of cost overruns and receive the
benefit of cost savings. Our profits could be adversely affected if our costs
under any of these contracts exceed the assumptions we used in bidding for the
contract. Although we believe that we have recorded adequate provisions in our
consolidated financial statements for losses on our contracts, as required
under U.S. generally accepted accounting principles, our contract loss
provisions may not be adequate to cover all actual losses that we may incur in
the future.

Our contracts are subject to audits and cost adjustments by the federal
government.

The federal government audits and reviews our performance on contracts,
pricing practices, cost structure and compliance with applicable laws,
regulations and standards. Like most large government

contractors, our contract costs are audited and reviewed on a continual basis.
Although audits have been completed on our incurred contract costs through
1999, audits for costs incurred or work performed after 1999 remain ongoing
and, for much of our work in recent years, have not yet commenced. In addition,
non-audit reviews by the government may still be conducted on all our
government contracts. An audit of our work, including an audit of work
performed by companies we have acquired or may acquire, could result in a
substantial adjustment to our revenues because any costs found to be improperly
allocated to a specific contract will not be reimbursed, and revenues we have
already recognized may need to be refunded. If a government audit uncovers
improper or illegal activities, we may be subject to civil and criminal
penalties and administrative sanctions, including termination of contracts,
forfeiture of profits, suspension of payments, fines and suspension or
debarment from doing business with federal government agencies. In addition, we
could suffer serious harm to our reputation if allegations of impropriety were
made against us.

We may be liable for systems and service failures.

We create, implement and maintain information technology and technical
services solutions that are often critical to our customers' operations,
including those of federal, state and local governments. We have experienced
and may in the future experience some systems and service failures, schedule or
delivery delays and other problems in connection with our work. If our
solutions, services, products or other applications have significant defects or
errors, are subject to delivery delays or fail to meet our customers'
expectations, we may:

. Lose revenues due to adverse customer reaction;

. Be required to provide additional services to a customer at no charge;

. Receive negative publicity, which could damage our reputation and
adversely affect our ability to attract or retain customers; or

. Suffer claims for substantial damages against us.

In addition to any costs resulting from product warranties, contract
performance or required corrective action, these failures may result in
increased costs or loss of revenues if they result in customers postponing
subsequently scheduled work or canceling or failing to renew contracts.

While many of our contracts with the federal government limit our liability
for damages that may arise from negligence in rendering services to our
customers, we cannot be sure that these contractual provisions will protect us
from liability for damages if we are sued. Furthermore, our errors and
omissions and product liability insurance coverage may not continue to be
available on reasonable terms or in sufficient amounts to cover one or more
large claims, or the insurer may disclaim coverage as to some types of future
claims. The successful assertion of any large claim against us could seriously
harm our business. Even if not successful, these claims could result in
significant legal and other costs and may be a distraction to our management.

Security breaches in classified government systems could adversely affect our
business.

Many of the programs we support and systems we develop, install and
maintain involve managing and protecting information involved in intelligence,
national security and other classified government functions. A security breach
in one of these systems could cause serious harm to our business, damage our
reputation and prevent us from being eligible for further work on critical
classified systems for federal government customers. Losses that we could incur
from such a security breach could exceed the policy limits that we have for
errors and omissions or product liability insurance.

Our quarterly operating results may vary widely.

Our quarterly revenues and operating results may fluctuate significantly in
the future. A number of factors cause our revenues, cash flow and operating
results to vary from quarter to quarter, including:

. Fluctuations in revenues earned on fixed-price contracts and contracts
with a performance-based fee structure;

. Commencement, completion or termination of contracts during any
particular quarter;

. Variable purchasing patterns under government GSA schedule contracts,
blanket purchase agreements and indefinite delivery, indefinite quantity
contracts;

. Changes in Presidential administrations and senior federal government
officials that affect the timing of technology procurement;

. Changes in policy or budgetary measures that adversely affect government
contracts in general; and

. Acquisitions of other technology service providers.

Changes in the volume of services provided under existing contracts and the
number of contracts commenced, completed or terminated during any quarter may
cause significant variations in our cash flow from operations because a
relatively large amount of our expenses are fixed. We incur significant
operating expenses during the start-up and early stages of large contracts and
typically do not receive corresponding payments in that same quarter. We may
also incur significant or unanticipated expenses when contracts expire or are
terminated or are not renewed. In addition, payments due to us from government
agencies may be delayed due to billing cycles or as a result of failures of
governmental budgets to gain Congressional and Administration approval in a
timely manner.

Our senior management and advisory board are important to our customer
relationships.

We believe that our success depends in part on the continued contributions
of our co-founder, Chairman of the Board of Directors, Chief Executive Officer
and President, George J. Pedersen, our Executive Vice President, Chief
Financial Officer, Treasurer and Director, John A. Moore, Jr., other members of
our senior management and advisory board. We rely on our executive officers and
senior management to generate business and execute programs successfully. In
addition, the relationships and reputation that members of our management team
and advisory board have established and maintain with government and military
personnel contribute to our ability to maintain good customer relations and to
identify new business opportunities. While we have employment agreements with
some of our executive officers, these agreements do not prevent them from
terminating their employment. The loss of Mr. Pedersen, Mr. Moore or any other
senior management or advisory board members could impair our ability to
identify and secure new contracts and otherwise to manage our business.

We must recruit and retain skilled employees to succeed in our labor-intensive
business.

We believe that an integral part of our success is our ability to provide
employees who have advanced information technology and technical services
skills and who work well with our customers in a government or defense-related
environment. These employees are in great demand and are likely to remain a
limited resource in the foreseeable future. If we are unable to recruit and
retain a sufficient number of these employees, our ability to maintain and grow
our business could be negatively

impacted. In addition, some of our contracts contain provisions requiring us to
commit to staff a program with certain personnel the customer considers key to
our successful performance under the contract. In the event we are unable to
provide these key personnel or acceptable substitutions, the customer may
terminate the contract, and we may not be able to recover our costs in the
event the contract is terminated.

Our business is dependent upon obtaining and maintaining required security
clearances.

Many of our federal government contracts require our employees to maintain
various levels of security clearances, and we are required to maintain certain
facility security clearances complying with
Department of Defense requirements. Obtaining and maintaining security
clearances for employees involves a lengthy process, and it is difficult to
identify, recruit and retain employees who already hold security clearances. If
our employees are unable to obtain or retain security clearances or if our
employees who hold security clearances terminate employment with us, the
customer whose work requires cleared employees could terminate the contract or
decide not to renew it upon its expiration. In addition, we expect that many of
the contracts on which we will bid will require us to demonstrate our ability
to obtain facility security clearances and perform work with employees who hold
specified types of security clearances. To the extent we are not able to obtain
facility security clearances or engage employees with the required security
clearances for a particular contract, we may not be able to bid on or win new
contracts, or effectively rebid on expiring contracts.

If we are unable to manage our growth, our business could be adversely affected.

Sustaining our growth has placed significant demands on our management, as
well as on our administrative, operational and financial resources. For us to
continue to manage our growth, we must continue to improve our operational,
financial and management information systems and expand, motivate and manage
our workforce. If we are unable to successfully manage our growth without
compromising our quality of service and our profit margins, or if new systems
that we implement to assist in managing our growth do not produce the expected
benefits, our business, prospects, financial condition or operating results
could be adversely affected.

We may undertake acquisitions that could increase our costs or liabilities or
be disruptive.

One of our key operating strategies is to selectively pursue acquisitions.
While we do not currently have any commitments, agreements or understandings to
acquire any specific businesses or other material operations, we have made a
number of acquisitions in the past and will consider other acquisitions in the
future. We may not be able to locate suitable acquisition candidates at prices
that we consider appropriate or to finance acquisitions on terms that are
satisfactory to us. If we do identify an appropriate acquisition candidate, we
may not be able to successfully negotiate the terms of an acquisition, finance
the acquisition or, if the acquisition occurs, integrate the acquired business
into our existing business. Negotiations of potential acquisitions and the
integration of acquired business operations could disrupt our business by
diverting management away from day-to-day operations. The proceeds we receive
from this offering may not be sufficient to fund the full cost of acquisitions
that we may determine to pursue. Acquisitions of businesses or other material
operations may require additional debt or equity financing, resulting in
additional leverage or dilution of ownership. The difficulties of integration
may be increased by the necessity of coordinating geographically dispersed
organizations, integrating personnel with disparate business backgrounds and
combining different corporate cultures. We also may not realize cost
efficiencies or synergies that we anticipated when

selecting our acquisition candidates. In addition, we may need to record write
downs from future impairments of intangible assets, which could reduce our
future reported earnings. At times, acquisition candidates may have liabilities
or adverse operating issues that we fail to discover through due diligence
prior to the acquisition.

We may be exposed to liabilities or losses from operations that we have
discontinued.

We have determined to dispose of certain of our businesses, either by
selling them or by winding down their operations. For more information on these
discontinued operations, please see "Management's Discussion and Analysis of
Financial Condition and Results of Operations--Discontinued Operations" and
note 15 to our consolidated financial statements. Our consolidated financial
statements reflect, under the heading "Discontinued Operations," our estimate
of the net losses expected from these operations through the date we estimate
we will dispose of them, and all losses expected to be realized upon disposal
of these operations. If we incur greater losses than we expect on dispositions,
or if the operation of these businesses generates greater losses than we expect
prior to disposition, there will be a negative impact on future operating
results. Even if we are successful in disposing of these businesses, we may
continue to be exposed to some liabilities for their operations.

For example, we are a defendant in a lawsuit where the plaintiff alleges
that one of the businesses we intend to dispose of or its subcontractors caused
soil and groundwater contamination by improperly disposing of dry cleaning
solvents. For more information on this lawsuit, see "Business--Legal
Proceedings." The operations from this business, particularly the performance
of environmental consulting and remediation services, may not have been or in
the future may not be conducted in compliance with environmental laws, exposing
us to further liability and damages for the costs of investigating and cleaning
up sites of spills, disposals or other releases of hazardous materials. We
cannot assure you that our liability in this matter, or any other environmental
liabilities that arise in the future, will not exceed our resources or will be
covered by insurance. Even after we dispose of this and the other discontinued
operations, we likely will remain liable for any costs, damages or other
liabilities imposed upon them that result from or relate to their operations
prior to the disposition.

We may be affected by intellectual property infringement claims.

Our business operations rely extensively on procuring and deploying
intellectual property. Our employees develop some of the software solutions and
other forms of intellectual property that we use to provide information
technology solutions to our customers, but we also license technology from
primary vendors. Typically, under federal government contracts, our government
customers may claim rights in the intellectual property we develop, making it
impossible for us to prevent their future use of our intellectual property. We
are and may in the future be subject to claims from our employees or third
parties who assert that software solutions and other forms of intellectual
property that we used in delivering services and solutions to our customers
infringe upon intellectual property rights of such employees or third parties.
If our vendors, our employees or third parties assert claims that we or our
customers are infringing on their intellectual property, we could incur
substantial costs to defend these claims. In addition, if any of our vendors'
infringement claims are ultimately successful, our vendors could require us to:

. Cease selling or using products or services that incorporate the
challenged software or technology;

. Obtain a license or additional licenses from our vendors; or

. Redesign our products and services that rely on the challenged software
or technology.

Covenants in our credit facility may restrict our financial and operating
flexibility.

Our credit facility contains covenants that limit or restrict, among other
things, our ability to borrow money outside of the amounts committed under the
credit facility, make investments in our subsidiaries that are borrowers under
the credit facility and designated as discontinued operations or in other
entities not listed as borrowers under the credit facility, make other
restricted payments, pay dividends on our common stock, sell or otherwise
dispose of assets other than in the ordinary course of business, merge or
consolidate, or make acquisitions, in each case without the prior written
consent of our lenders. Our credit facility also requires us to maintain
specified financial covenants relating to fixed charge coverage, interest
coverage, debt coverage, and minimum consolidated net worth. Our ability to
satisfy these financial ratios can be affected by events beyond our control,
and we cannot assure you that we will meet those ratios. For example, on two
occasions in the past five years, in March 2001 and in November 2000, we
obtained waivers for failure to maintain the required fixed charge coverage
ratio as of the end of the preceding quarters under the credit facility that
was in effect at that time. Default under our credit facility could allow the
lenders to declare all amounts outstanding to be immediately due and payable.
We have pledged substantially all of our assets, including the stock of our
subsidiaries to secure the debt under our credit facility. If the lenders
declare amounts outstanding under the credit facility to be due, the lenders
could proceed against those assets. Any event of default, therefore, could have
a material adverse effect on our business if the creditors determine to
exercise their rights. We also may incur future debt obligations that might
subject us to restrictive covenants that could affect our financial and
operational flexibility, restrict our ability to pay dividends on our common
stock or subject us to other events of default. Any such restrictive covenants
in any future debt obligations we incur could limit our ability to fund our
businesses with equity investments or intercompany advances, which would impede
our ability to operate or expand our business.

From time to time we may require consents or waivers from our lenders to
permit actions that are prohibited by our credit facility. For example, we will
require the consent of our lenders to complete the merger through which we
reincorporate in Delaware. If in the future our lenders refuse to provide
waivers of our credit facility's restrictive covenants and/or financial ratios,
then we may be in default under our credit facility, and we may be prohibited
from undertaking actions that are necessary to maintain and expand our business.

Our employees may engage in misconduct or other improper activities.

We are exposed to the risk that employee fraud or other misconduct could
occur. Misconduct by employees could include intentional failures to comply
with federal government procurement regulations and failing to disclose
unauthorized or unsuccessful activities to us. Employee misconduct could also
involve the improper use of our customers' sensitive or classified information,
which could result in regulatory sanctions and serious harm to our reputation.
It is not always possible to deter employee misconduct, and the precautions we
take to prevent and detect this activity may not be effective in controlling
unknown or unmanaged risks or losses.

RISKS RELATED TO OUR COMMON STOCK AND THIS OFFERING

An active public market for our Class A common stock may not develop.

The initial price of our Class A common stock to be sold in this offering
will be determined through negotiations between us and the representatives of
the underwriters and may not be indicative of prices that will prevail in the
trading market. Before this offering, no public market existed for our common
stock. An active public market for our Class A common stock may not develop or
be sustained after this offering, which could affect your ability to sell your
shares or depress the market price of your shares. The market price of your
shares may fall below the initial public offering price.

You will experience immediate and substantial dilution.

The initial public offering price per share will significantly exceed the
current net tangible book value per share of our stock that was outstanding
prior to this offering. As a result, investors purchasing Class A common stock
in this offering will experience immediate and substantial dilution in the
amount of $ per share. In addition, we have issued options to acquire Class
A common stock at prices below the initial public offering price. The exercise
of these employee and director stock options will result in further dilution to
new investors.

Mr. Pedersen, our Chairman, Chief Executive Officer and President, will
continue to control our company.

Upon completion of this offering, Mr. Pedersen will own or control
approximately . % of the combined voting power of the Class A and Class B
common stock, or . % if the underwriters' over-allotment option is exercised in
full. Accordingly, Mr. Pedersen will control the vote on all matters submitted
to a vote of the holders of our common stock. For more information, see
"Description of Capital Stock, Certificate of Incorporation and Bylaws--Common
Stock." As long as Mr. Pedersen beneficially owns a majority of the combined
voting power of our common stock, he will have the ability, without the consent
of our public stockholders, to elect all members of our board of directors and
to control our management and affairs. Mr. Pedersen's voting control may have
the effect of preventing or discouraging transactions involving an actual or a
potential change of control of ManTech, regardless of whether a premium is
offered over then-current market prices. Mr. Pedersen will be able to cause a
change of control of our company. Mr. Pedersen also will be able to cause a
registration statement to be filed and to become effective under the Securities
Act of 1933, thereby permitting him to freely sell or transfer the shares of
common stock that he owns. In addition, the interests of Mr. Pedersen may
conflict with the interests of other holders of our common stock.

Provisions in our charter documents could make a merger, tender offer or proxy
contest difficult.

Our certificate of incorporation and bylaws may discourage, delay or
prevent a change in control of ManTech that stockholders may consider
favorable. Our certificate of incorporation and bylaws:

. Authorize the issuance of blank check preferred stock that could be
issued by our board of directors to thwart a takeover attempt;

. Prohibit cumulative voting in the election of directors, which would
otherwise allow holders of less than a majority of the stock to elect
some directors;

. Limit who may call special meetings of stockholders;

. Prohibit stockholder action by written consent, requiring all actions to
be taken at a meeting of the stockholders;

. Establish advance notice requirements for nominating candidates for
election to our board of directors or for proposing matters that can be
acted upon by stockholders at stockholder meetings; and

. Require that vacancies on our board of directors, including newly-created
directorships, be filled only by a majority vote of directors then in
office.

In addition, Section 203 of the Delaware General Corporation Law may
discourage, delay or prevent a change in control by prohibiting the company
from engaging in a business combination with an interested stockholder for a
period of three years after the person becomes an interested stockholder. For
more information, see "Description of Capital Stock, Certificate of
Incorporation and Bylaws."

The market price of our Class A common stock may fluctuate widely and trade at
prices below the initial public offering price.

The price of our Class A common stock after this offering may fluctuate
widely, depending upon many factors, including our perceived prospects, and the
prospects of the information technology and government contracting industries
in general, differences between our actual financial and operating results and
those expected by investors and analysts, changes in analysts' recommendations
or projections, changes in general valuations for information technology and
technical services companies, changes in general economic or market conditions
and broad market fluctuations. In addition, the terrorist attacks of September
11, 2001 and subsequent bioterrorism concerns have contributed to an economic
slowdown and to significant instability in the U.S. and other global financial
equity markets. The armed hostilities that were initiated as a result of these
attacks and future responses by the federal government may lead to further acts
of terrorism in the United States or elsewhere, and such developments would
likely cause further instability in financial markets. All of these factors
subject our operations to increased risks and could have a material adverse
effect on your investment in our common stock. As a result, our Class A common
stock may trade at prices significantly below the initial public offering price.

We will have broad discretion over the use of proceeds from this offering.

We intend to use the net proceeds from this offering to retire portions of
our outstanding debt obligations, to pursue possible acquisitions and for
working capital and other general corporate purposes. We may not use the
proceeds from this offering for each of these purposes. Future events,
including changes in competitive conditions, our ability to identify
appropriate acquisition candidates, the availability of other financing and
funds generated from operations and the status of our business from time to
time, may lead us to change the allocation of the net proceeds of this offering
among these possible uses. We will have broad discretion with respect to the
use of these funds and the determination of the timing of expenditures. We
cannot assure you that we will use these funds in a manner that you would
approve of or that the allocations will be in the best interests of all of our
stockholders.

We make forward-looking statements in this prospectus that involve risks,
uncertainties and assumptions.

We have made forward-looking statements in this prospectus, including in
the section entitled "Management's Discussion and Analysis of Financial
Condition and Results of Operations," that are based on our management's
beliefs and assumptions and on information currently available to our

management. Forward-looking statements include all statements that are not
historical facts and can be identified by the use of forward-looking
terminology such as the words "believes," "expects," "anticipates," "intends,"
"plans," "estimates" or similar expressions. Forward-looking statements include
the information concerning our possible or assumed future results of
operations, business strategies, anticipated expenses, anticipated backlog and
GSA schedule contract value, financing plans, competitive position, potential
growth opportunities, the future of our industry, the effects of future
regulation and the effects of competition. Forward-looking statements involve
risks, uncertainties and assumptions. You should not put undue reliance on any
forward-looking statements. You should understand that many important factors
discussed in this "Risk Factors" section and elsewhere in this prospectus could
cause our results to differ materially from those expressed in forward-looking
statements. We do not have any intention or obligation to update
forward-looking statements after the underwriters cease to distribute this
prospectus, except as provided by law.

USE OF PROCEEDS

We estimate the net proceeds to us of this offering to be approximately $
. million, based on an assumed offering price of $ per share, the mid-point
of the estimated price range set forth on the cover of this prospectus, after
deducting the underwriting discount and the estimated expenses related to this
offering, which are payable by us. We intend to use the net proceeds we receive
to pay off all of the principal and accrued interest then outstanding under our
term loan and under our subordinated debt and to pay off all but $25.0 million
of principal owing under our revolving credit facility. The amounts outstanding
under these borrowings fluctuate from time to time, but as of September 30,
2001, the principal and accrued interest under our term loan was approximately
$7.2 million, principal and accrued interest under our subordinated debt was
approximately $8.0 million, and principal and accrued interest under our
revolving credit facility was approximately $53.1 million. We intend to use the
remainder of the net proceeds of this offering (together with cash on hand,
additional borrowings and capital stock) to fund all or a portion of the costs
of any acquisitions of complementary businesses we determine to pursue in the
future, although there are no assurances that we will be able to successfully
identify or consummate any such acquisitions. To the extent that we do not
pursue or consummate any acquisitions, any remaining net proceeds to us will be
used for working capital and general corporate purposes. We have no present
commitments, agreements or understandings to acquire any business. We may
invest the net proceeds of this offering in short-term, investment grade,
interest-bearing securities or guaranteed obligations of the United States or
its agencies. We will not receive any proceeds from the sale of the shares to
be sold by the selling stockholder in this offering or under the over-allotment
option.

DIVIDEND POLICY

Our credit facility prohibits us from issuing cash dividends to holders of
our common stock. In addition, we currently intend to retain any earnings for
the future operation and growth of our business. Therefore, we do not
anticipate paying any cash dividends on our common stock in the foreseeable
future. No dividends have been declared on any class of our common stock during
the past two fiscal years. Any future dividends declared would be at the
discretion of our board of directors and would depend, among other factors,
upon our results of operations, financial condition and cash requirements and
the terms of our credit facility and other financing agreements at the time
such payment is considered.

CAPITALIZATION

The following table sets forth our cash and cash equivalents and
capitalization at September 30, 2001 on an actual and as adjusted basis. As
adjusted figures assume the application of the net proceeds of this offering to
us. You should read this table in conjunction with the consolidated financial
statements and notes to the consolidated financial statements included
elsewhere in this prospectus.

At September 30, 2001
---------------------
As
Actual Adjusted(1)
-------- -----------
(In thousands)

Cash and cash equivalents....................... $ 18,231 $
======== ==
Debt:
Current portion of long-term debt............ $ 2,769 $
Total long-term debt, net of current portion. 66,668
-------- --
Total debt............................... 69,437
-------- --
Redeemable Class B common stock................. 1,462
Stockholders' equity:
Common stock................................. 1,200
Additional paid-in capital................... 2,468
Retained earnings............................ 33,246
Accumulated other comprehensive loss......... (1,540)
Deferred compensation........................ 640
Treasury stock............................... (14,612)
-------- --
Total stockholders' equity............... 21,402
-------- --
Total capitalization............................ $ 92,301 $
======== ==

- --------
(1) The as adjusted balance sheet data as of September 30, 2001 gives effect to
the following transactions:

. Our reincorporation as a Delaware corporation through our merger with
ManTech International Corporation, a New Jersey corporation. As of the
effective date of the merger, each outstanding share of the New Jersey
corporation's common stock will be exchanged for one share of our
corporation's Class A common stock or Class B common stock; and

. We will effect a -for-one stock split of the outstanding shares of
Class A and Class B common stock of the Delaware corporation.

DILUTION

At September 30, 2001, we had net tangible book value of $ . million, or $
. per share, after giving effect to the sale of shares of Class A common
stock that we are offering at an assumed initial public offering price of $ .
per share, the mid-point of the estimated price range set forth on the cover
of this prospectus. This represents an immediate appreciation in net tangible
book value of $ . per share to existing stockholders and an immediate dilution
of net tangible book value of $ . per share to new investors. The following
table illustrates the pro forma per share dilution and appreciation at
September 30, 2001:

. Initial public offering price per share......................................... $
. Net tangible book value per share as of September 30, 2001...................... $
. Appreciation per share attributable to new investors............................ $
. Pro forma net tangible book value per share after giving effect to this offering $
. Dilution per share to new investors............................................. $

Net tangible book value per share of common stock is determined by dividing
our tangible net worth, which consists of tangible assets less liabilities, by
the number of shares of our common stock outstanding. Dilution is determined by
subtracting the net tangible book value per share of Class A common stock after
this offering from the public offering price per share. Appreciation per share
to new investors would be $ . if the underwriters exercise in full their
over-allotment option.

The following table compares the public offering price of the shares of
Class A common stock to the cost to our existing stockholders of shares of
Class A and Class B common stock that they acquired within the past five years,
or which they have the right to acquire under outstanding stock options.

Shares Purchased Total Consideration
------------------- -------------------
Average
Price Per
Number Percent(1) Amount Percent(2) Share
------- ---------- ------ ---------- ---------

Existing stockholders (3) % $ % $ (4)
New investors........ % % (5)
------- ------ ------ ------ --------
Total.............
======= ====== ====== ====== ========

- --------
(1) The number of shares purchased as a percent of the total number of shares
of our common stock outstanding on September 30, 2001.
(2) The amount paid for the shares purchased as a percent of total price paid
for the shares of our common stock in the past five years.
(3) Includes all shares of our common stock purchased in the last five years
and assumes the exercise of all stock options outstanding as of September
30, 2001.
(4) Based on the weighted average exercise price of all stock options exercised
during the last five years, as well as all stock options outstanding as of
September 30, 2001.
(5) The mid-point of the estimated initial public offering price range set
forth on the cover page of this prospectus.

SELECTED FINANCIAL DATA

The selected financial data presented below for the nine months ended
September 30, 2001 and for each of the years in the five-year period ended
December 31, 2000 is derived from our audited consolidated financial
statements. The data for the nine months ended September 30, 2000 and the
recent operating results for each of the most recent eight quarters is derived
from our unaudited consolidated financial statements and includes all
adjustments, consisting of normal and recurring adjustments, that we consider
necessary for a fair presentation of the financial position and results of
operations as of and for such periods. Interim financial results for any
quarter and for the nine months ended September 30, 2000 and September 30, 2001
are not necessarily indicative of the results that may be expected for the full
year. You should read the selected financial data presented below in
conjunction with our consolidated financial statements, the notes to our
consolidated financial statements and "Management's Discussion and Analysis of
Financial Condition and Results of Operations."

Nine Months Ended
Year Ended December 31, September 30,
------------------------------------------------ ------------------
1996 1997 1998 1999 2000 2000 2001
-------- -------- -------- -------- -------- -------- --------
(In thousands, except per share amounts)

Statement of Income Data:
Revenues...................................... $223,049 $286,051 $314,309 $353,924 $378,827 $280,970 $316,266
Cost of services........................... 191,589 245,857 265,189 296,306 315,414 234,834 258,412
-------- -------- -------- -------- -------- -------- --------
Gross profit.................................. 31,460 40,194 49,120 57,618 63,413 46,136 57,854
-------- -------- -------- -------- -------- -------- --------
Costs and expenses:
General and administrative................. 23,141 27,509 33,389 39,175 41,545 30,993 33,166
Depreciation and amortization.............. 1,300 2,304 2,284 3,275 3,279 2,448 2,451
-------- -------- -------- -------- -------- -------- --------
Total costs and expenses................ 24,441 29,813 35,673 42,450 44,824 33,441 35,617
-------- -------- -------- -------- -------- -------- --------
Income from operations........................ 7,019 10,381 13,447 15,168 18,589 12,695 22,237
Interest expense.............................. 1,647 2,434 4,020 4,122 4,438 3,316 2,383
Loss from investment default.................. -- -- 5,230 -- -- -- --
Other (income) expense, net................... (326) (1,925) (940) (1,253) 1,039 (73) (1,386)
-------- -------- -------- -------- -------- -------- --------
Income before provision for income taxes and
minority interest............................ 5,698 9,872 5,137 12,299 13,112 9,452 21,240
Provision for income taxes.................... (2,614) (4,410) (2,183) (5,466) (5,974) (4,327) (9,062)
Minority interest............................. (7) (24) (33) (37) (13) (12) (18)
-------- -------- -------- -------- -------- -------- --------
Income from continuing operations............. 3,077 5,438 2,921 6,796 7,125 5,113 12,160
(Loss) income from discontinued operations.... (1,039) 255 (1,268) (2,727) (4,667) (3,124) (6,533)
Loss on disposal of discontinued operations... (93) -- -- -- (719) (719) (5,890)
-------- -------- -------- -------- -------- -------- --------
Net income (loss)............................. $ 1,945 $ 5,693 $ 1,653 $ 4,069 $ 1,739 $ 1,270 $ (263)
======== ======== ======== ======== ======== ======== ========
Income from continuing operations available to
common stockholders.......................... $ 1,947 $ 4,189 $ 2,838 $ 6,796 $ 7,125 $ 5,113 $ 12,160
======== ======== ======== ======== ======== ======== ========
Basic earnings per share from continuing
operations................................... $ 1.67 $ 3.60 $ 2.46 $ 5.98 $ 6.29 $ 4.53 $ 10.68
======== ======== ======== ======== ======== ======== ========
Diluted earnings per share from continuing
operations................................... $ 1.64 $ 3.54 $ 2.43 $ 5.93 $ 6.24 $ 4.49 $ 10.59
======== ======== ======== ======== ======== ======== ========
Balance Sheet Data:
Cash and cash equivalents..................... $ 13,276 $ 17,318 $ 14,572 $ 19,571 $ 29,578 $ 11,366 $ 18,231
Working capital............................... 36,916 46,593 59,354 66,784 71,882 67,503 62,016
Total assets.................................. 108,705 154,886 165,718 186,070 186,843 176,736 177,061
Long-term debt................................ 37,642 49,135 66,377 72,005 73,000 69,075 66,668
Total stockholders' equity.................... 12,506 16,831 15,515 19,548 21,794 21,433 21,402

QUARTERLY RESULTS OF OPERATIONS

Our results of operations, particularly our revenues, gross profit and cash
flow, may vary significantly from quarter to quarter depending on a number of
factors, including the progress of contract performance, revenues earned on
contracts, the number of billable days in a quarter, the timing of customer
orders and billing of other direct costs, the commencement and completion of
contracts during any particular quarter, the timing of government contract
awards, the term of each contract that we have been awarded and general
economic conditions. For example, revenues in the first quarter of 2000 were
lower than the fourth quarter of 1999 due to two fewer billable days in the
first quarter, and the inclusion in the fourth quarter's revenues of a larger
than usual amount of other direct costs incurred on our programs. Because a
significant portion of our expenses, such as personnel and facilities costs,
are fixed in the short term, successful contract performance and variation in
the volume of activity, as well as in the number of contracts commenced or
completed during any quarter may cause significant variations in operating
results from quarter to quarter.

The federal government's fiscal year ends September 30. If a budget for the
next fiscal year has not been approved by that date in each year, our customers
may have to suspend engagements that we are working on until a budget has been
approved. Such suspensions may cause us to realize lower revenues in the fourth
quarter of the year. Further, a change in Presidential administrations or in
senior government officials may negatively affect the rate at which the federal
government purchases technology.

As a result of the factors above, period-to-period comparisons of our
revenues and operating results may not be meaningful. You should not rely on
these comparisons as indicators of future performance as no assurances can be
given that quarterly results will not fluctuate, causing a material adverse
effect on our operating results and financial condition.

Quarters Ended
--------------------------------------------------------------------------
Dec. 31, Mar. 31, June 30, Sept. 30, Dec. 31, Mar. 31, June 30, Sept. 30,
1999 2000 2000 2000 2000 2001 2001 2001
-------- -------- -------- --------- -------- -------- -------- ---------
(In thousands)

Statement of Income Data:
Revenues................................ $94,953 $91,320 $93,485 $96,165 $97,857 $105,081 $105,627 $105,558
Cost of services..................... 80,642 75,717 78,558 80,559 80,580 86,433 86,623 85,356
------- ------- ------- ------- ------- -------- -------- --------
Gross profit............................ 14,311 15,603 14,927 15,606 17,277 18,648 19,004 20,202
------- ------- ------- ------- ------- -------- -------- --------
Costs and expenses:
General and administrative........... 10,937 10,431 10,076 10,486 10,552 10,436 11,258 11,472
Depreciation and amortization........ 786 824 828 796 831 826 827 798
------- ------- ------- ------- ------- -------- -------- --------
Total costs and expenses.......... 11,723 11,255 10,904 11,282 11,383 11,262 12,085 12,270
------- ------- ------- ------- ------- -------- -------- --------
Income from operations.................. 2,588 4,348 4,023 4,324 5,894 7,386 6,919 7,933
Interest expense........................ 1,057 1,027 1,082 1,207 1,122 807 771 805
Loss from investment default............ -- -- -- -- -- -- -- --
Other (income) expense, net............. (585) (246) 141 32 1,112 (443) (749) (194)
------- ------- ------- ------- ------- -------- -------- --------
Income before provision for income taxes
and minority interest.................. 2,116 3,567 2,800 3,085 3,660 7,022 6,897 7,321
Provision for income taxes.............. (930) (1,617) (1,314) (1,396) (1,647) (3,006) (2,953) (3,103)
Minority interest....................... (12) (7) -- (5) (1) (7) (7) (4)
------- ------- ------- ------- ------- -------- -------- --------
Income from continuing operations....... 1,174 1,943 1,486 1,684 2,012 4,009 3,937 4,214
Loss from discontinued operations....... (603) (886) (1,394) (844) (1,543) (2,361) (1,907) (2,265)
Loss on disposal of discontinued
operations............................. -- -- -- (719) -- -- -- (5,890)
------- ------- ------- ------- ------- -------- -------- --------
Net income (loss)....................... $ 571 $ 1,057 $ 92 $ 121 $ 469 $ 1,648 $ 2,030 $ (3,941)
======= ======= ======= ======= ======= ======== ======== ========
As a Percentage of Revenues:
Revenues................................ 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
Cost of services..................... 84.9 82.9 84.0 83.8 82.3 82.3 82.0 80.9
------- ------- ------- ------- ------- -------- -------- --------
Gross profit............................ 15.1 17.1 16.0 16.2 17.7 17.7 18.0 19.1
------- ------- ------- ------- ------- -------- -------- --------
Costs and expenses:
General and administrative........... 11.5 11.4 10.8 10.9 10.8 9.9 10.7 10.9
Depreciation and amortization........ 0.8 0.9 0.9 0.8 0.8 0.8 0.8 0.8
------- ------- ------- ------- ------- -------- -------- --------
Total costs and expenses.......... 12.3 12.3 11.7 11.7 11.6 10.7 11.5 11.7
------- ------- ------- ------- ------- -------- -------- --------
Income from operations.................. 2.8 4.8 4.3 4.5 6.1 7.0 6.5 7.4
Interest expense........................ 1.1 1.1 1.2 1.3 1.1 0.8 0.7 0.8
Loss from investment default............ -- -- -- -- -- -- -- --
Other (income) expense, net............. (0.6) (0.3) 0.2 0.0 1.1 (0.4) (0.7) (0.2)
------- ------- ------- ------- ------- -------- -------- --------
Income before provision for income taxes
and minority interest.................. 2.3 4.0 2.9 3.2 3.9 6.6 6.5 6.8
Provision for income taxes.............. (1.0) (1.8) (1.4) (1.5) (1.7) (2.9) (2.8) (2.9)
Minority interest....................... (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0) (0.0)
------- ------- ------- ------- ------- -------- -------- --------
Income from continuing operations....... 1.3 2.2 1.5 1.7 2.2 3.7 3.7 3.9
Loss from discontinued operations....... (0.6) (1.0) (1.5) (0.9) (1.6) (2.2) (1.8) (2.1)
Loss on disposal of discontinued
operations............................. -- -- -- (0.7) -- -- -- (5.6)
------- ------- ------- ------- ------- -------- -------- --------
Net income (loss)....................... 0.7% 1.2% 0.0% 0.1% 0.6% 1.5% 1.9% (3.8%)
======= ======= ======= ======= ======= ======== ======== ========

MANAGEMENT'S DISCUSSION AND ANALYSIS OF
FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion of our financial condition and results of
operations should be read together with the consolidated financial statements
and the notes to those statements included elsewhere in this prospectus. This
discussion contains forward-looking statements that involve risks and
uncertainties. For additional information regarding some of the risks and
uncertainties that affect our business and the industry in which we operate and
that apply to an investment in our Class A common stock, please see "Risk
Factors." This discussion addresses only our continuing operations, except in
the discussion under the heading, "Discontinued Operations." For more
information on our discontinued operations, please see "Management's Discussion
and Analysis of Financial Condition and Results of Operations--Discontinued
Operations" and note 15 to our consolidated financial statements.

Overview

We deliver a broad array of information technology and technical services
solutions to U.S. federal government customers, focusing primarily on critical
national defense programs for the intelligence community and Department of
Defense. We design, develop, procure, implement, operate, test and maintain
mission-critical, enterprise information technology and communication systems
and intelligence processing infrastructures for our federal government
customers. We also provide solutions to federal government civilian agencies,
as well as to state and local governments and commercial customers.

A substantial portion of our revenues are derived from contracts with the
federal government. For the nine months ended September 30, 2001 and the year
ended December 31, 2000, 95.8% and 96.1%, respectively, of our revenues were
derived, either as a prime or a subcontractor, from contracts with the federal
government. For the nine months ended September 30, 2001 and 2000, we derived
84.1% and 83.3%, respectively, of our revenues from contracts with our
customers in the intelligence community and Department of Defense.

Our revenues consist primarily of payments for the work of our employees
and, to a lesser extent, the pass-through of costs for material and subcontract
efforts under contracts with our customers. We enter into three types of
federal government contracts: cost-plus, time-and-materials and fixed-price.
Under cost-plus contracts, we are reimbursed for allowable costs and paid a
fee, which may be fixed or performance-based. Under time-and-materials
contracts, we are reimbursed for labor at negotiated hourly billing rates and
for certain expenses. We assume financial risk on time-and-material contracts
because we assume the risk of performing those contracts at negotiated hourly
rates. Under fixed-price contracts, we perform specific tasks for a fixed
price. Compared to cost-plus contracts, fixed-price contracts generally offer
higher margin opportunities but involve greater financial risk because we bear
the impact of cost overruns and receive the benefit of cost savings. For the
nine months ended September 30, 2001, we derived approximately 36.3%, 35.6% and
28.1% of our revenues from cost-plus, time-and-materials and fixed-price
contracts, respectively. For the year ended December 31, 2000, we derived
approximately 39.7%, 34.6% and 25.7% of our revenues from cost-plus,
time-and-materials and fixed-price contracts, respectively.

We recognize revenues under cost-plus contracts as our costs are incurred
and we include an estimate of applicable fees earned. We recognize revenues
under time-and-materials contracts by multiplying the number of direct
labor-hours expended in the performance of the contract by the contract billing
rates and adding other billable direct costs. For contracts that include
performance-based incentives, we recognize the incentives when they have been
earned and we can reasonably demonstrate satisfaction of the performance goal
or when the incentive has been awarded. We

recognize revenues under fixed-price contracts using the percentage of
completion method, which involves a periodic assessment of costs incurred to
date in relation to the estimated total costs at completion, or upon the
delivery of specific products or services. We record the cumulative effects of
any revisions to our estimated total costs and revenues in the period in which
the facts requiring revisions become known. If we anticipate a loss on a
contract, we provide for the full amount of the anticipated loss at the time of
that determination.

Our most significant expense is our cost of services, which consists
primarily of direct labor costs for program personnel and direct expenses
incurred to complete contracts, including cost of materials and subcontract
efforts. Our ability to accurately predict personnel requirements, salaries and
other costs, as well as to manage personnel levels and successfully redeploy
personnel, can have a significant impact on our cost of services. General and
administrative expenses consist primarily of costs associated with our
management, finance and administrative groups; personnel training; sales and
marketing expenses which include bid and proposal efforts; and certain
occupancy, travel and other corporate costs.

Results of Operations

The following table sets forth, for each period indicated, the percentage
of items in the consolidated statement of operations in relation to revenues.

Nine Months
Year Ended Ended
December 31, September 30,
------------------- ------------
1998 1999 2000 2000 2001
----- ----- ----- ----- -----

Revenues...................................................... 100.0% 100.0% 100.0% 100.0% 100.0%
Cost of services........................................... 84.4 83.7 83.3 83.6 81.7
----- ----- ----- ----- -----
Gross profit.................................................. 15.6 16.3 16.7 16.4 18.3
----- ----- ----- ----- -----
Costs and expenses:
General and administrative................................. 10.6 11.1 11.0 11.0 10.5
Depreciation and amortization.............................. 0.7 0.9 0.9 0.9 0.8
----- ----- ----- ----- -----
Total costs and expenses............................... 11.3 12.0 11.9 11.9 11.3
----- ----- ----- ----- -----
Income from operations........................................ 4.3 4.3 4.8 4.5 7.0
Interest expense.............................................. 1.3 1.2 1.2 1.2 0.8
Loss from investment default.................................. 1.7 -- -- -- --
Other (income) expense, net................................... (0.3) (0.4) 0.3 (0.0) (0.4)
----- ----- ----- ----- -----
Income before provision for income taxes and minority interest 1.6 3.5 3.3 3.3 6.6
Provision for income taxes.................................... (0.7) (1.5) (1.6) (1.5) (2.9)
Minority interest............................................. (0.0) (0.0) (0.0) (0.0) (0.0)
----- ----- ----- ----- -----
Income from continuing operations............................. 0.9 2.0 1.7 1.8 3.7
Loss from discontinued operations............................. (0.4) (0.8) (1.2) (1.1) (2.1)
Loss on disposal of discontinued operations................... -- -- (0.2) (0.3) (1.9)
----- ----- ----- ----- -----
Net income (loss)............................................. 0.5% 1.2% 0.3% 0.4% (0.3)%
===== ===== ===== ===== =====

The following table sets forth, for each period indicated, the percentage
of our revenues derived from each of our major types of customers.

Nine Months
Year Ended Ended
December 31, September 30,
------------------- ------------
1998 1999 2000 2000 2001
----- ----- ----- ----- -----

Intelligence / Department of Defense 82.9% 81.7% 83.6% 83.3% 84.1%
Federal Civilian Agencies........... 14.2 14.3 12.5 12.8 11.7
Commercial / State / Local.......... 2.9 4.0 3.9 3.9 4.2
----- ----- ----- ----- -----
Total............................ 100.0% 100.0% 100.0% 100.0% 100.0%
===== ===== ===== ===== =====

Nine Months Ended September 30, 2001 Compared to the Nine Months Ended
September 30, 2000

Revenues. Revenues increased 12.6% to $316.3 million for the nine months
ended September 30, 2001, compared to $281.0 million for the period in 2000.
This increase is attributable primarily to additional work under contracts that
were in existence during the corresponding period of the prior year. Additional
work from the Department of State and the Army for secure systems and
infrastructure solutions, the Defense Security Service for information
technology solutions and from the Marine Corps for systems engineering
solutions contributed significantly to the increased revenues. We derived
approximately 31.1% of our revenues for the nine months ended September 30,
2001 from work under GSA schedule contracts, compared with approximately 29.8%
for 2000. We derived approximately 8.4% of our revenues for the nine months
ended September 30, 2001 from contracts in which we acted as a subcontractor,
compared with approximately 7.8% for 2000.

Cost of services. Cost of services increased 10.0% to $258.4 million for
the nine months ended September 30, 2001, compared to $234.8 million for 2000.
As a percentage of revenues, cost of services decreased from 83.6% to 81.7%.
Direct labor costs increased by 6.0%, while other direct costs increased by
18.2% over 2000. Material and subcontract costs increased 18.2% to $108.6
million for the nine months ended September 30, 2001, compared to $91.9 million
for 2000. The increase arose primarily from our secure systems and
infrastructure solutions work and, to a lesser degree, our Defense Security
Service information technology work.

Gross profit. Gross profit increased 25.4% to $57.9 million for the nine
months ended September 30, 2001, compared to $46.1 million for 2000. Gross
profit margin increased to 18.3% for the nine months ended September 30, 2001,
compared to 16.4% for 2000. The increase resulted from higher margins on new
secure systems and infrastructure and information technology tasks, in
conjunction with our improved realization of cost efficiencies, as a greater
percentage of our work is performed under GSA schedule contracts.

General and administrative. General and administrative expenses increased
7.0% to $33.2 million for the nine months ended September 30, 2001, compared to
$31.0 million for 2000 for additional management personnel and infrastructure
to support the growth of our business. As a percentage of revenues, general and
administrative expenses declined 0.5% over the comparable period during the
prior year as a result of operating efficiencies, such as our improved
monitoring of costs.

Depreciation and amortization. Depreciation and amortization expense has
remained relatively constant for the nine months ended September 30, 2001 and
2000, because we have not acquired any companies or made any significant
purchases of fixed assets during the periods.

Income from operations. Income from operations increased 75.2% to $22.2
million for the nine months ended September 30, 2001, compared with $12.7
million for 2000. The increase was primarily a result of the increase in
revenues relative to the cost of services discussed above. Another contributing
factor was the improvement in other income that was driven by our receipt of
$500,000 from our agreement to discontinue a subcontract.

Income from continuing operations. Income increased 137.8% to $12.2 million
for the nine months ended September 30, 2001, compared to $5.1 million for
2000. The increase resulted from higher operating income, an increase in other
income, reduced interest expense and a lower effective tax rate. Other income
increases are primarily attributable to our equity investment in an affiliate
which incurred losses in 2000, but has been profitable in 2001. Interest
expense for the period decreased by 28.1% from the nine months ended September
30, 2000 as a result of a $4.0 million reduction in our average balance under
our line of credit and from lower interest rates. Our effective tax rate for
the nine months ended September 30, 2001 was 42.7%, compared to 45.8% for 2000,
due to a relative decrease in non-deductible expenses.

Year Ended December 31, 2000 Compared to the Year Ended December 31, 1999

Revenues. Revenues increased 7.0% to $378.8 million for the year ended
December 31, 2000, compared to $353.9 million for 1999. This increase was
attributable primarily to additional work under contracts that were in
existence during the prior year. Additional work from the Department of State
and the Army for secure systems and infrastructure solutions and from the
Marine Corps for systems engineering solutions contributed significantly to the
increased revenues, offset in part by declines in work under an Army
information technology solutions contract. We derived approximately 29.8% of
our revenues for 2000 from work under GSA schedule contracts, compared with
approximately 20.3% for 1999. We derived approximately 7.8% of our revenues for
2000 from contracts in which we acted as a subcontractor, compared with
approximately 6.8% for 1999.

Cost of services. Cost of services increased 6.4% to $315.4 million for
2000, compared to $296.3 million for 1999. As a percentage of revenues, cost of
services decreased from 83.7% to 83.3%. Direct labor costs increased by 5.9%,
while other direct costs increased by 8.2% over 1999. Material and subcontract
costs increased 8.2% to $127.2 million in 2000, compared to $117.6 million in
1999, as a result of costs primarily associated with increased secure systems
and infrastructure solutions.

Gross profit. Gross profit increased 10.1% to $63.4 million for 2000,
compared to $57.6 million for 1999. Gross profit margin increased to 16.7% for
2000, compared to 16.3% for 1999. This increase resulted from our improved
realization of cost efficiencies as a greater percentage of our work was
performed under GSA schedule contracts.

General and administrative. General and administrative expenses increased
6.0% to $41.5 million for 2000, compared to $39.2 million for 1999, as our
expenses grew in line with the growth of our business. As a percentage of
revenues, general and administrative expenses declined 0.1%.

Depreciation and amortization. Depreciation and amortization expense
remained relatively constant for 2000 and 1999, because we did not acquire any
companies in 2000 or make any significant purchases of fixed assets during the
year. There were no significant purchases of fixed assets during the year,
primarily due to the fact that we began leasing the majority of our computer
equipment under three-year leases in the first quarter of 1999.

Income from operations. Income from operations increased 22.6% to $18.6
million for 2000, compared to $15.2 million for 1999. The increase was
primarily a result of the increase in revenues relative to the cost of services
discussed above, offset by increased general and administrative expenses.

Income from continuing operations. Income increased 4.8% to $7.1 million
for 2000, compared to $6.8 million for 1999. The increase resulted from higher
operating income, offset by higher interest expense, a reduction in other
income and a higher effective tax rate. While the average debt balance remained
fairly constant year over year, interest expense for the year increased by $0.3
million from the prior year as a result of increasing interest rates. Other
income declined by $2.3 million in 2000 compared to 1999 as a result of reduced
earnings from an equity investment and a non-recurring $0.4 million gain
recorded in 1999 upon our sale of a building. Our effective tax rate for 2000
was 45.6%, compared to 44.4% for 1999, due to a relative increase in
non-deductible expenses.

Year Ended December 31, 1999 Compared to the Year Ended December 31, 1998

Revenues. Revenues increased 12.6% to $353.9 million for the year ended
December 31, 1999, compared to $314.3 million for 1998. This increase is
attributable primarily to contracts with the Department of State and other
intelligence agency contracts for secure systems and infrastructure solutions,
which were awarded in 1999. We also had approximately $7.4 million in
additional revenues, which resulted from our January 1999 acquisition of
Advanced Development Group, Inc., most of which consists of information
technology work for the Army. The balance of the increase is attributable to
additional work under contracts that were in existence during the prior year,
including work from several intelligence agency customers and from the Marine
Corps for systems engineering solutions. We derived approximately 20.3% of our
revenues for 1999 from work under GSA schedule contracts, compared with
approximately 10.4% for 1998. We derived approximately 6.8% of our revenues for
1999 from contracts in which we acted as a subcontractor, compared with
approximately 6.2% for 1998.

Cost of services. Cost of services increased 11.7% to $296.3 million for
1999, compared to $265.2 million for 1998. As a percentage of revenues, cost of
services decreased from 84.4% to 83.7%. Direct labor costs increased by 14.6%
as a result of additional staff hired to support new and expanded contract work
as well as the addition of staff from Advanced Development Group. Other direct
costs increased by 7.6% over the comparable period in 1998. Material and
subcontract costs increased 7.6% to $117.6 million for 1999, compared to $109.2
million for 1998.

Gross profit. Gross profit increased 17.3% to $57.6 million for 1999,
compared to $49.1 million for 1998. Gross profit margin increased to 16.3% for
1999, compared to 15.6% for 1998. This increase resulted from improved margins
as a result of reduced reliance on subcontractors and additional services
provided under new GSA schedule contracts.

General and administrative. General and administrative expenses increased
17.3% to $39.2 million for 1999, compared to $33.4 million for 1998. As a
percentage of revenues, general and administrative expenses increased 0.5% over
the prior year, primarily as a result of increased infrastructure requirements,
including expenses associated with our management and marketing of our new GSA
schedule contracts.

Depreciation and amortization. Depreciation and amortization expense
increased 43.4% to $3.3 million for 1999 compared to $2.3 million for 1998. The
increase resulted from amortization of purchased contract costs and noncompete
agreements associated with our acquisition of Advanced

Development Group and, to a lesser extent, amortization of capitalized software
development costs. There were no significant purchases of fixed assets during
1999, primarily due to the fact that we began leasing the majority of our
computer equipment under three-year leases in the first quarter of 1999.

Income from operations. Income from operations increased 12.8% to $15.2
million for 1999, compared to $13.4 million in 1998. The increase was primarily
a result of the increase in revenues relative to the cost of services discussed
above, offset by increased general and administrative expenses.

Income from continuing operations. Income increased 132.7% to $6.8 million
for 1999, compared to $2.9 million for 1998. The increase resulted from higher
operating income and higher other income, offset by a higher effective tax
rate. Other income rose during the period by $0.4 million as a result of a gain
posted on the sale of a building. Interest expense for 1999 increased by $0.1
million from an increase of $0.9 million in the average debt balance. Our
effective tax rate for 1999 was 44.4%, compared to 42.5% for 1998, due to a
relative increase in non-deductible expenses. In addition, income from
continuing operations in 1998 was affected by a $5.2 million non-recurring
charge that resulted from Global Intellicom defaulting on notes it had issued
to us in 1996 in connection with Global Intellicom's 1996 purchase of our
custom computer hardware business.

Liquidity and Capital Resources

Our primary source of liquidity is cash provided by operations and our
revolving credit and term-loan facility. We fund our operations primarily
through cash provided by operating activities. Cash provided by continuing
operations was $12.5 million for the nine months ended September 30, 2001, an
increase of $11.3 million from the prior year period. The primary reason for
this increase was a $7.0 million increase in income from continuing operations
and increases in salary-related accruals and decreases in prepaid and other
assets offset by increased contract receivables and decreased advanced billings
and accounts payable and other accruals.

Cash provided by operating activities of continuing operations for 2000,
1999 and 1998 was $19.9 million, $9.4 million and $7.9 million, respectively.
In 2000, cash provided by operating activities was generated primarily from
income from continuing operations of $7.1 million, a decrease in contract
receivables as a result of greater efforts to monitor and collect these
amounts, an increase in advanced billings and an increase in salary-related
accruals, offset by increases in prepaid expenses and other assets and
decreases in accounts payable and accrued expenses. In 1999, cash flow was
principally due to income from continuing operations of $6.8 million, increases
in accounts payable and accrued expenses and decreases in prepaid expenses and
other assets, offset by a significant increase in contract receivables
resulting from growth in our contract base. In 1998, cash was generated by
income from continuing operations of $2.9 million plus the non-cash investment
default of $5.2 million offset by increased contract receivables and decreased
advanced billings.

Cash used in investing activities of continuing operations was $5.6 million
for the nine months ended September 30, 2001, compared to $2.1 million for the
prior nine month period. Investment activities included extending loans to an
affiliate, purchase of property and equipment and investments in intellectual
property. Cash used in investing activities for 2000, 1999 and 1998 was $4.2
million, $2.6 million and $5.0 million, respectively. Financing activities have
primarily consisted of investments in intellectual property, acquisitions of
businesses, investments and loans to affiliates and purchase of property and
equipment.

Cash used in financing activities of continuing operations was $7.7 million
for the nine months ended September 30, 2001, compared to $3.8 million for the
nine months ended September 30, 2000. The net cash used during 2001 and 2000 is
primarily the result of reduction in debt.

Cash used in financing activities of continuing operations was $0.0 million
for 2000. Cash provided by financing activities of continuing operations was
$2.0 million for 1999 and $1.3 million for 1998. Debt repayments and borrowings
produced no significant cash impact in 2000. Borrowings under our line of
credit exceeded repayments of other debt items by $2.0 million in 1999. In
1998, we undertook $8.0 million in subordinated debt in order to finance the
redemption of $8.0 million in preferred stock. We also redeemed $2.9 million in
common stock from a former employee. This was financed through borrowings under
our line of credit.

On December 17, 2001, we executed a new Business Loan and Security
Agreement with Citizens Bank of Pennsylvania, PNC Bank N.A., Branch Banking and
Trust Company of Virginia, and Chevy Chase Bank, F.S.B. to refinance and
replace our prior agreement. The new agreement provides for a $65.0 million
revolving credit facility and a $6.4 million term loan. Under the term-loan
portion of the new agreement, the principal balance is payable in consecutive
quarterly installments of $0.5 million on the last business day of each quarter
commencing with the last business day of December 2001. The maturity date of
the new agreement is December 31, 2004. Borrowings under the new agreement are
collateralized by our eligible contract receivables, inventory, all of our
stock in our subsidiaries and certain property and equipment and bear interest
at the London Interbank Offering Rate (LIBOR), or the lender's prime rate, plus
market-rate spreads that are determined based on a company leverage ratio
calculation. The LIBOR spreads may range from 1.75% to 2.75% and the prime rate
spreads may range from 0.50% to 1.50%.

Our new loan agreement replaced a November 1998 Business Loan and Security
Agreement with Mellon Bank N.A., First Union Commercial Corporation and PNC
Bank N.A. that, as modified in October 2000, consisted of a $60.0 million
revolving credit facility and a $16.0 million term loan. Under the revolving
portion of the former agreement, we could borrow the lesser of defined
percentages of receivables or $60.0 million. Under the term-loan portion of the
former agreement, the principal balance was payable in consecutive quarterly
installments of $0.8 million on the last business day of each quarter with a
final payment of $6.4 million due upon the expiration of the agreement on
December 31, 2001. Borrowings under the former agreement were collateralized by
our eligible contract receivables, inventory and certain property and equipment
and as of September 30, 2001 bore interest at the agreed-upon LIBOR plus 2.25%
for the first $25.0 million outstanding, at LIBOR plus 2.75% for the term loan,
at LIBOR plus 2.03125% for European currency loans of $1.0 million and at the
bank's prime rate plus 1.00% for outstanding amounts greater than $33.2
million. The aggregate weighted average interest rate for the nine months ended
September 30, 2001 was 8.49%. At September 30, 2001, we had $60.3 million in
borrowings outstanding under the former agreement.

In January 1998, we executed a seven-year Subordinated Credit Agreement
with First Source Financial LLP for $8.0 million to finance the redemption of
preferred stock. The principal balance is payable in eight consecutive
quarterly installments of $0.9 million on the first business day of each
quarter commencing with the first business day of January 2003. A ninth and
final payment is due on the last day of December 2004.

We believe the capital resources available to us under our credit
agreements and cash from our operations are adequate to fund our ongoing
operations and to support the internal growth we expect to achieve for at least
the next 12 months. We anticipate financing our external growth from
acquisitions

as well as our longer-term internal growth through one or a combination of the
following: cash from operations; additional borrowing; issuance of equity; use
of the existing revolver facility; or a refinancing of our credit facilities.

Discontinued Operations

Prompted by the prospect in the early 1990s of stable or declining federal
government spending on defense programs as a result of the end of the Cold War,
we made a number of investments in businesses operating primarily in
non-governmental markets in the United States and internationally. Our
investment in commercial and international business ventures contributed to our
expertise with leading-edge information technology and technical services
solutions. As a result of the favorable outlook for government technology
service providers and the slowdown in the commercial information technology
market, we determined in January 2001 to refocus our business strategy on our
core competencies and business operations in the U.S. federal government
market. In September 2001, we decided to exit certain lines of business
involving foreign operations or operations that primarily serve commercial
customers. We have decided to dispose of or discontinue our Australian-based
software solutions consulting business, our United Kingdom-based bank
remittance processing business, our China-based consulting business, our
U.S.-based environmental consulting and remediation business and our U.S.-based
application-hosting business. We are not discontinuing or disposing of our
operations that currently provide comprehensive information technology and
systems engineering solutions to federal governmnent agencies, including the
EPA, or that currently provide database conversion solutions to commercial
customers. The lines of business to be disposed of or discontinued have been
classified as discontinued operations in our consolidated financial statements.
Based on independent valuations, market comparable information and interest
expressed in these businesses, we have estimated the likely net gains and
losses to income expected from these businesses through the estimated date of
disposal. In accordance with Accounting Principles Board Opinion No. 30,
Reporting the Results of Operations--Reporting the Effects of Disposal of a
Segment of a Business and Extraordinary Unusual and Infrequently Occurring
Events and Transactions, we have recorded all current and expected future
losses and deferred all gains expected to be realized upon disposal of the
respective entities.

Quantitative and Qualitative Disclosures About Market Risk

Our exposure to market risk relates to changes in interest rates for
borrowings under our senior term loan and our revolving credit facility. These
borrowings bear interest at variable rates. We also have an unsecured note that
bears interest at a fixed rate. We estimate the fair value of this note to
approximate the $8.0 million principal balance. Based on our senior term loan
and our revolving credit facility borrowings during 2000, a hypothetical 10%
increase in interest rates would have increased our annual interest expense by
approximately $0.5 million and would have decreased our annual cash flow from
operations by approximately $0.5 million.

In November 2000, we entered into an interest swap agreement in order to
reduce our exposure associated with the market volatility of interest rates.
This agreement has a notional amount of $25.0 million and, as of September 30,
2001, had a rate of 6.53%. This agreement is a hedge against revolving debt of
$25.0 million, which bears interest at monthly floating LIBOR plus 2.25%. At
stated monthly intervals the difference between the interest on the floating
LIBOR-based debt and the interest calculated in the swap agreement are settled
in cash. The value of the swap at September 30, 2001 was

a negative $2,084,000. In December 2001, the swap agreement was reset within
our new banking group at a rate of 6.83% with a four-year term.

Accounting Pronouncements

In June 2001, the Financial Accounting Standards Board (FASB) issued SFAS
No. 141, Business Combinations (SFAS No. 141). SFAS No. 141 requires that all
business combinations be accounted for by a single method--the purchase method.
The provisions of SFAS No. 141 apply to all business combinations initiated
after June 30, 2001. SFAS No. 141 also applies to all business combinations
accounted for using the purchase method for which the date of acquisition is
July 1, 2001, or later. We do not expect the adoption of the provisions of SFAS
No. 141 to have an impact on our consolidated financial position or results of
operations.

In June 2001, the FASB issued Statement No. 142, Goodwill and Other
Intangible Assets (SFAS No. 142). SFAS No. 142 requires that, upon its
adoption, amortization of goodwill will cease and instead, the carrying value
of goodwill will be evaluated for impairment on an annual basis. Identifiable
intangible assets will continue to be amortized over their useful lives and
reviewed for impairment in accordance with SFAS No. 121, Accounting for the
Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed Of
(SFAS No. 121). SFAS No. 142 will be effective for fiscal years beginning after
December 15, 2001. We have not yet completed our analysis of this new
pronouncement and the impact it will have on the consolidated financial
statements.

In July 2001, the FASB issued Statement No. 143, Accounting for Asset
Retirement Obligations (SFAS No. 143). SFAS No. 143 requires that the fair
value of a liability for an asset retirement obligation be recognized in the
period in which it is incurred, if a reasonable estimate of fair value can be
made. The associated asset retirement cost would be capitalized as part of the
carrying amount of the long-lived asset. SFAS No. 143 will be effective for
fiscal years beginning after June 15, 2002. We have not determined the effect
that this statement will have on our consolidated financial position or results
of operations.

In October 2001, the FASB issued Statement No. 144, Accounting for the
Impairment or Disposal of Long-Lived Assets (SFAS No. 144), that replaces SFAS
No. 121. SFAS No. 144 requires that long-lived assets be measured at the lower
of carrying amount or fair value less cost to sell, whether reported in
continuing operations or in discontinued operations. SFAS No. 144 also broadens
the reporting of discontinued operations to include all components of an entity
with operations that can be distinguished from the rest of the entity and that
will be eliminated from the ongoing operations of the entity in a disposal
transaction. The provisions of SFAS No. 144 are effective for financial
statements issued for fiscal years beginning after December 15, 2001. We have
not yet completed our analysis of this new pronouncement and the impact it will
have on the consolidated financial statements.

In November 2001, the Emerging Issues Task Force (EITF) issued Topic No.
D-103, Income Statement Characterization of Reimbursements Received for
"Out-of-Pocket" Expenses Incurred. EITF No. D-103 requires that companies
report reimbursements received for out-of-pocket expenses incurred as revenue,
rather than as a reduction of expenses. The provisions of EITF No. D-103 are
effective for financial statements issued for fiscal years beginning after
December 15, 2001. As we have historically accounted for reimbursements of
out-of-pocket expenses in the manner provided for under EITF No. D-103, we do
not expect the adoption of the provisions of EITF No. D-103 to have an impact
on our consolidated financial position or results of operations.

BUSINESS

Overview

ManTech International Corporation delivers a broad array of information
technology and technical services solutions to U.S. federal government
customers, focusing primarily on critical national defense programs for the
intelligence community and Department of Defense. We design, develop, procure,
implement, operate, test and maintain mission-critical, enterprise information
technology and communication systems and intelligence processing
infrastructures for our federal government customers. More than 1,700 of our
nearly 3,500 employees hold government security clearances, including over 600
with access to Sensitive Compartmented Information allowing us to work with our
customers in highly classified environments and at front-line deployments in
the United States and 28 countries globally.

We were founded in 1968 and have exhibited strong growth and profitability
since 1980 largely as a result of successful long-standing relationships with
our customers, having supported many of them for 15 to 30 years. For both the
year ended December 31, 2000 and the nine months ended September 30, 2001,
approximately 84.0% of our revenues were derived from our customers in the
intelligence community and Department of Defense. These customers include the
Office of the Secretary of Defense; the Department of State; various
intelligence agencies; the U.S. Army, Navy, Air Force and Marine Corps; and
joint military commands. We also provide solutions to federal government
civilian agencies, including NASA, EPA and the Departments of Justice, Commerce
and Energy, as well as to state and local governments and commercial customers.

Industry Background

The federal government is the largest purchaser of information technology
solutions. Federal government spending on information technology has
consistently increased in each year since 1980. This trend is expected to
continue, with federal government spending on information technology expected
to increase from $36.4 billion in 2001 to an estimated $60.3 billion in 2006, a
compound annual growth rate of 10.6%. Moreover, this data may not fully reflect
government spending on complementary technical services, which include
sophisticated systems engineering and testing services. We believe that
government spending will continue to increase due to several trends:

Increasing U.S. Department of Defense budgets. The Department of Defense is
the largest purchaser of information technology in the federal government. The
federal government is projected to increase spending on defense-related
programs from $291.0 billion in 2001 to $400.0 billion in 2003, a compound
annual growth rate of 17.2%. For fiscal year 2002, the President has signed a
bill that authorizes $343.0 billion in defense spending. In addition, emergency
supplemental funds for homeland defense initiatives add at least an additional
$3.5 billion to the Department of Defense's budget for fiscal year 2002. Within
this expanding market, there are several notable trends affecting information
technology and technical services providers:

. Command, Control, Communication, Computers and Intelligence (C4I).
According to Frost & Sullivan, a market research firm, the federal
government spends approximately $11.3 billion annually on advanced
systems and communications for C4I-related activities. We believe that
spending on advanced command and control architectures will increase as
the Department of Defense seeks to use information technology to increase
combat power, improve battle management and enhance communications and
systems interoperability.

. Homeland Defense Programs. The Pentagon has stated that the military's
most urgent priority is to defend the United States from external attack,
including cyber-assaults and bioterrorism. To accomplish this mission, we
believe the federal government will rely heavily on cooperative and
coordinated information systems, technologies and technical services.
According to the Government Electronics and Information Technology
Association, federal spending on information assurance initiatives is
expected to increase from $2.7 billion in 2000 to $6.7 billion in 2005, a
compound annual growth rate of approximately 19.9%. In addition, on
September 18, 2001, the President signed into law an emergency spending
bill that provides $40.0 billion for Homeland Defense initiatives, $20.0
billion of which will be obligated for spending in fiscal year 2001 and
$20.0 billion for fiscal year 2002.

. Intelligence Spending. The U.S. intelligence community is comprised of 13
federal agencies and organizations responsible for the collection,
analysis and dissemination of strategic and tactical intelligence
information. Information on the intelligence community is available from
the government's website at www.cia.gov/ic. The budget for the
intelligence community is coordinated under the Director of Central
Intelligence and the Secretary of Defense. The intelligence community
budget has traditionally been classified for national security reasons,
but figures released to the public for the fiscal years 1997 and 1998
indicated annual budgets in excess of $26.0 billion. While budget numbers
for subsequent years have not been released, according to the U.S. House
of Representatives Appropriations Committee, the fiscal year 2002
spending bill "adds significant funds in support of classified programs
and also provides funding to accelerate and enhance U.S. military
intelligence, surveillance, and reconnaissance (ISR) capabilities." In
addition, the emergency supplemental spending bill signed into law by the
President on September 18, 2001 allows for spending on
intelligence-related activities, although specific spending amounts have
not been released to the public.

Increasing adoption of commercialized procurement methods in the federal
government. Recent changes in procurement legislation have incorporated
commercial buying techniques into the government's source selection process.
These changes have resulted in reduced supplier selection time and have
facilitated "best value" contracting, which considers qualitative selection
criteria, such as past performance and technical approach. Other changes allow
government technology service providers to attain pre-approved status and gain
the opportunity to market their services to federal government customers
through contracts with established pricing metrics, such as GSA schedule
contracts. These contracts enable government agencies to transition from
cost-plus contracts to time-and-materials and fixed-price contracts, which
promotes increased efficiencies for federal government customers by
incentivizing technology service providers to reduce costs.

Increasing reliance on technology service providers. Market researchers
estimate that the federal government information technology outsourcing budget
will grow from approximately $6.3 billion in 2001 to approximately $13.2
billion in 2006, a compound annual growth rate of approximately 15.9%, due to
the government's need for cost-effective technologies and efficient services.
The trend towards use of technology service providers is expected to accelerate
in light of staffing challenges facing the government. The National Academy of
Public Administrators estimates that approximately 50.0% of the federal
government information technology workforce will be eligible to retire by 2006
and that there will be a shortage of technically skilled replacements. Given
the difficulty the federal government has experienced in hiring and retaining
skilled technology personnel in recent years, we believe the federal government
will need to rely heavily on technology service providers that have experience
with government legacy systems, can sustain mission-critical operations

and have the required government security clearances to deploy qualified
personnel in classified environments.

Increasing focus on modernizing information technology and communication
infrastructures. Traditionally, the federal government has relied on
proprietary legacy systems that were developed with programming and computer
standards unique to the government. These legacy systems often are expensive to
maintain, lack scalability and are incompatible with current technologies.
Nevertheless, the government has a significant amount of money and resources
invested in these legacy systems, many of which serve mission-critical
functions where even a minor failure can lead to substantial losses, including
potential loss of life. The government therefore requires technology service
providers with domain expertise who can successfully integrate and transition
proprietary legacy systems to modern technologies.

Requirements for Government Technology Service Providers

We believe that government technology service providers face significant
challenges when providing services to the intelligence community and Department
of Defense. We believe they must:

. Provide and support comprehensive technology-based solutions;

. Demonstrate expertise in sustaining proprietary government legacy systems
to maintain mission-critical functionality, while integrating or
replacing them with modern systems and applications;

. Comply with strict personnel and facility security clearance requirements
for classified programs;

. Demonstrate domain expertise, a record of past performance and the
ability to successfully manage large and complex programs; and

. Have a strong management team with practical experience in managing
programs for the intelligence community and Department of Defense.

ManTech's Competitive Advantages

We believe we are well positioned to address the requirements of our
customers in the intelligence community and Department of Defense because we
possess the following key competitive advantages:

Comprehensive technology solutions provider. We offer comprehensive systems
life-cycle support, through which we design, develop, procure, implement,
operate, test and maintain sophisticated communication and information
technology systems and infrastructures. Our ability to provide this broad array
of capabilities affords us opportunities to expand our business with existing
customers and to develop relationships with new customers. By offering domain
expertise in customers' systems and infrastructures, we are able to identify,
develop, implement and deploy solutions to support our customers'
mission-critical and enterprise systems.

Extensive experience with government legacy systems. Our expertise with
legacy systems migration, integration, optimization and maintenance enables us
to sustain, modernize, maximize and protect our government customers'
investments in systems and infrastructures. For over 30 years, we have worked
with a variety of legacy information technology systems and programming
languages that are proprietary to our customers in the intelligence community
and Department of Defense, and we have gained extensive domain expertise
through our on-site presence at government facilities. With

this background, we can transition a customer's legacy systems to, or integrate
them with, new commercial technologies and web-enabled customized applications,
enhancing the interoperability and accessibility of critical enterprise data.

Employees with security clearances. We are able to satisfy the strict
security clearance requirements for personnel who work on classified programs
for the intelligence community and Department of Defense. More than 1,700 of
our approximately 3,500 employees have government security clearances.
Approximately 1,100 of these employees hold Top Secret security clearances,
including more than 600 employees who have access to Sensitive Compartmented
Information. These employees have already completed the lengthy process
necessary to obtain a security clearance, which requires a candidate to be
sponsored by the government for a particular purpose, entails extensive
background investigations that typically take between six months to a year and,
for restricted access clearance, may require successful completion of polygraph
testing. We also maintain facility clearances as required to support classified
programs.

Proven track record of providing services to the federal government. We
have a successful track record of fulfilling our customer needs as demonstrated
by our long-term relationships with many of our largest customers. We have
supported technical services programs for the Navy for over 30 years,
intelligence activities for the Army for over 20 years and security programs
for the Department of State for over 15 years. For example, since 1981 we have
provided services under five successive competitively awarded contracts in
support of the Naval Aviation Logistics Command Management Information System.

Experienced management team. Our executives and advisory board members
provide us extensive experience supporting the intelligence community and
Department of Defense. Many of our executives and advisory board members have
long tenures in the government marketplace, and several are former senior
military officers or intelligence agency executives. With their knowledge,
valued relationships and reputations, our management plays a key role in
building and sustaining our customer base.

ManTech's Growth Strategy

Our objective is to profitably grow our business as a premier provider of
comprehensive information technology and technical services solutions to the
federal government market. Our strategies for achieving this objective include:

Expand Our Customer Base. We intend to capitalize on our long-term
relationships with our customers and our reputation within the intelligence
community and Department of Defense to attract new customers and to cross-sell
our broad array of solutions to our existing customers. Under the "best value"
contracting process that has resulted from reforms in the government process,
past performance and technical approach are key factors which the government
may consider when evaluating competitive bids. Based on our long-term support
to numerous customers, we believe we have a successful past performance track
record and demonstrated technical expertise that gives us credibility
recognition with these customers and enhances our ability to be successful in
bidding on follow-on contracts and in competition for new programs of both
existing and new customers. We also intend to pursue these opportunities by
hiring key personnel with targeted domain expertise and by pursuing strategic
acquisitions. Because our personnel are on-site with or working in close
proximity to our customers, we develop close relationships with them and are
often able to enhance our customers' operations by rapidly identifying and
developing solutions for customer-specific requirements.

Increase Contract Profitability. We intend to continue increasing our
profitability by pursuing contracts that require higher value-added solutions
and by transitioning our services to more efficient and flexible contract
vehicles, such as competitively awarded GSA schedule contracts. We leverage our
customer relationships and our existing core competencies to identify and
compete for service offerings where we can obtain improved margins by
delivering higher value-added solutions. In addition, we have actively pursued
flexible contract vehicles, such as competitively awarded GSA schedule
contracts, as a quick, efficient way to engage our services. GSA schedule
contracts are competitively awarded acquisition contracts which government
agencies may use to purchase our solutions at predetermined ceiling prices,
terms and conditions. In marketing to our customers, we are able to highlight
the advantages that these contract vehicle alternatives offer our customers. In
addition to providing our customers with pre-negotiated competitively priced
arrangements, these advantages include the broad range of services that can be
obtained under them, the quick response flexibility they offer to meet short
time constraints and the capability to accommodate overall program technical,
schedule and cost requirements at fair market prices. Customers which select
these contract vehicles find that they can obtain the benefit of competitively
priced services without the cost and delay of the government's traditional
formal proposal and bid process. These contract vehicles also incentivize us to
provide our services on a more cost-efficient basis. If we achieve cost
efficiencies through effective management of these contracts, we can increase
our profitability. Under GSA schedule contracts, we can also proactively market
our advanced technology solutions to our federal government customers.

Target High Growth Segments of the Market. We believe the projected growth
in government information technology and technical services spending will offer
opportunities for development and delivery of advanced technology solutions for
enterprise applications and information systems. We intend to expand our
service offerings in high growth program areas. In particular, we intend to
focus on providing new or improved solutions in critical infrastructure
protection and information assurance, including cybersecurity and homeland
defense programs, and other secure systems and infrastructure solutions to the
intelligence community, Department of Defense and other civilian agencies. For
example, our staffing levels in support of the Department of State's critical
infrastructure and information assurance functions increased from approximately
100 to 450 personnel since 1998.

Attract and Retain Highly Skilled Personnel. We intend to continue to
attract and retain skilled professionals, including engineers, scientists,
analysts, technicians and support specialists, to ensure we have the
capabilities to fulfill our customers' requirements. We target candidates who
have served in the military or as civilian experts in the intelligence
community and Department of Defense. We believe we can continue to retain our
employees by offering competitive compensation and incentive plans,
opportunities for career growth through company-supported education programs
and diverse, challenging assignments at over 160 locations worldwide.

Pursue Strategic Acquisitions. We plan to enhance our internal growth by
selectively pursuing strategic acquisitions of businesses that can
cost-effectively broaden our domain expertise and service offerings and allow
us to establish relationships with new customers. We are primarily focused on
acquiring businesses that provide value-added solutions for the intelligence
community and Department of Defense but will also consider opportunities to
acquire other businesses where we can leverage our reputation and experienced
management team.

ManTech's Services

We deliver comprehensive information technology and technical services
solutions for mission-critical, enterprise information technology and
communication systems through three principal areas of expertise, which are
offered separately or in combination across our customer base:

Secure Systems and Infrastructure Solutions

We provide a broad range of solutions to enhance systems and network
availability and mission-critical performance of our customers' hardware,
software, computer, network and telecommunication assets, including:

Intelligence Operations. We provide services for strategic and tactical
intelligence systems, networks and facilities in support of the intelligence
community and Department of Defense. To support classified systems and
facilities designed to collect, analyze, process and report on signals
intelligence, we develop and integrate advanced, signal processing systems and
new signal processing techniques. Our intelligence-related services also
include the design, rapid development and prototyping, integration and
management of real-time signal processing systems. For example, when an
adversary implements a new communication technique or protocol, we provide
rapid prototyping and re-engineering services, which enable our customers in
the intelligence community to decipher and exploit the communications.

Communication systems and infrastructure support. We design, develop,
modify and maintain secure communication systems and network infrastructures.
This process involves evaluating industry standards, systems architectures and
applications in order to recommend and develop technology solutions and
integrate them into a customer's secure communication systems. We also procure,
install and test new voice, data and video communication systems. For example,
we provided a comprehensive communication network infrastructure and systems
solution in relocating, re-establishing and upgrading a major military command
headquarters from Panama to Miami, Florida. We integrated the customer's
classified and unclassified information processing and telecommunication
network without disruption to the command mission.

Safeguarding critical infrastructures. We identify potential foreign and
domestic threats, including terrorism, to quantify exposure to the threats and
recommend prudent countermeasures. Our capabilities include threat definition
and modeling, vulnerability identification, adversary characterization, lethal
force defense analysis, security life-cycle planning and management, physical
and cyber countermeasure optimization techniques and operations security
assessments. For example, to assist the Department of State in addressing the
requirements of Presidential Decision Directive 63, which requires all
government agencies to identify and safeguard critical infrastructures from all
forms of threats, we provide on-going support in the department-wide
vulnerability assessments of their critical infrastructure and resources and
perform worldwide network management and other integrated security services.

Information assurance. We provide comprehensive information assurance
programs that assess and implement integrated physical, technical, operations,
personnel, computer and communication security requirements, including disaster
recovery assessment. Our services include systems security architecture
development, test and evaluation, certification and accreditation support and
compliance audits and inspections. We offer information assurance support for
both classified and unclassified systems. For example, for the Department of
State, we design and implement networks and host-based intrusion detection
programs that are compatible with their evolving virtual private network
architecture.

Information Technology Solutions

We provide a broad range of information technology solutions to our
customers, including:

Systems integration services. We perform comprehensive systems integration
of hardware and software components using commercial products and our
customers' proprietary software and legacy applications for our government and
commercial customers. We analyze customer information systems, applications and
platforms and develop solutions to sustain or extend systems performance and
availability. For example, as a subcontractor on the Navy-Marine Corps Intranet
program, we are transitioning legacy software applications to a standardized,
end-to-end systems infrastructure for voice, video and data. This includes
support of over 10,000 critical legacy business applications serving 350,000
Navy personnel, which must be migrated to the new program architecture. We also
develop and provide specialized training programs for information systems,
including interactive electronic training and technical manuals and
enterprise-wide distance learning programs. We are working with the Internal
Revenue Service's General Business Institute to design, develop and implement a
web-based training management and delivery solution that provides access to
more than 100 training courses via their intranet or the Internet.

In addition, we perform database conversion and application migration
services for our customers. For example, we developed a software tool that
enhances our database conversion and application migration services. This
solution automates the database conversion process to enable better, faster and
less expensive conversions and migrations.

Enterprise application solutions. We design, develop, implement, test,
maintain and web-enable software applications for our customers' information
systems and network infrastructures. We provide comprehensive e-commerce
services, including web development efforts that focus on designing and
maintaining scalable, interoperable, reliable and portable end-to-end
information management solutions. Our e-commerce services also include global
web-based collaboration, electronic cataloging, automated document imaging and
business process re-engineering. For example, as part of our business process
re-engineering services, we are working with the Office of the Secretary of
Defense to develop industry-wide electronic data interchange standards.

We design, develop and implement electronic data interchange solutions,
which enable different entities to communicate and execute orders and
transactions electronically. For example, we developed an electronic data
interchange solution for the Defense Commissary Agency, which operates over 370
commissaries worldwide. We also currently provide a web-based integrated
solution for managing millions of vital records that document birth, death,
marriage and divorce for several state and local governments.

Our information technology solutions allow end-users insight into and
control over supply chain management. We have developed and implemented
logistics management information systems for the Navy for more than 20 years,
including the sophisticated Naval Aviation Logistics Command Management
Information System application, which is used on every ship in the Navy and at
over 450 shore facilities. We have also expanded our services for the Navy in
this area so that we now develop, maintain and provide continuous systems
process improvements for 19 other information systems as part of the Navy
Tactical Command Support System, which automates numerous logistics functions.
Applications we designed for the Navy have been adopted for use by other
agencies, including the Marine Corps, the White House Communications Agency and
three NASA centers.

Systems/network maintenance services. We have extensive experience in
maintaining a wide range of information management resources for our customers.
We perform comprehensive systems administration, including 24x7 support for
continuous mission operations. For example, for the Army, we provide systems
administration and help desk functions at a domestic location for a command and
management system, as well as help desk functions in an overseas remote
location that supports 1,500

users. For this customer, we also provide on-site support for the command and
management system workstations and networks located throughout countries in
Central and South America.

Systems Engineering Solutions

We offer our customers a broad range of systems engineering solutions,
including:

Systems engineering services. We perform comprehensive systems engineering
services to analyze and develop solutions for customer hardware and software
requirements. We also evaluate existing systems designs to determine if
performance enhancements or cost savings can be derived through the integration
of current technologies. For more than 15 years, we have provided a broad range
of systems engineering services to analyze acoustic data requirements and
develop instrumentation to assist the Navy in maintaining or increasing the
acoustical advantages of U.S. submarines. As part of these services, we have
developed a wide range of hull-mounted and towed array sonar systems and
acoustic measurement systems. We also provide systems engineering and technical
services that support the design and installation of communication,
intelligence, electronic warfare and information systems aboard Navy and Coast
Guard ships and at shore-based facilities.

Testing and evaluation. For the past three decades, we have tested complex
and mission-critical hardware and software systems used by the Army, Navy and
NASA. We have played key roles in improving the performance, reliability,
maintainability, supportability and weapons effectiveness of in-service rotary
and fixed wing platforms, including the F/A-18E/F Super Hornet, and their
associated ordnance. We are participating in development of plans for testing
and evaluating the Joint Strike Fighter. We also perform submarine and surface
ship acoustical trials to evaluate stealth abilities and to maintain the
acoustical credibility of U.S. submarines. We have performed acoustic testing
for every operational class of Navy combat vessel, both surface and submarine,
in use today.

Through our work at NASA's Goddard Space Flight Center, our space payload
test and integration services have supported every in-house earth orbit program
since 1971. We conduct a broad range of tests, including structural, acoustics,
vibration, space simulation and electromagnetic tests, to certify that all
flight hardware can withstand the extreme conditions of space flight. We have
won recognition within both Goddard and the NASA community for our test,
integration, transportation and launch site support of the Hubble Space
Telescope repair and servicing missions. For example, we received the Goddard
Contractor Excellence Award for 2000.

We also design, manufacture and produce automated test technology for
military and commercial customers. For example, we are the prime contractor for
the U.S. Marine Corps Third Echelon Test System, a mobile testing platform that
is designed to provide electronic repair support on the front lines of the
battlefield.

Our services also include our environmental science, toxicology and ecology
research and development services for the EPA, including assessing the human
health impacts of a wide variety of air and waterborne contaminants, monitoring
and predicting exposures, understanding exposure routes in the event of a
release of chemicals or biological agents and modeling migration strategies to
predict the movement of airborne and waterborne contaminants. In response to
the September 11, 2001 terrorist attacks, we were asked by the EPA's National
Exposure Research Laboratory to assemble and calibrate equipment for monitoring
pollutants released around the collapsed World Trade Center complex. In less
than 48 hours, we defined monitoring needs and configured equipment in a mobile
laboratory that was delivered to the World Trade Center site to collect and
evaluate samples of contaminants.

Independent validation and verification. We perform tests to certify that
new systems or upgraded systems operate in accordance with their design
requirements. For example, we have performed certification services for
aircraft weapon systems in support of U.S. Naval Air Systems Command programs.

ManTech's Customers

Our customers include U.S. federal government intelligence, military and
civilian agencies and other state and local governments and commercial
customers. We have successful long-standing relationships with our customers,
having supported many of them for 15 to 30 years. Representative customers
include:

. Intelligence and Department of Defense Customers
[_] Office of the Secretary of Defense
[_] U.S. Army, Navy, Air Force and Marine Corps
[_] Multiple Intelligence and Classified Agencies
[_] Department of State
[_] Defense Information Systems Agency
[_] Defense Logistics Agency
[_] Defense Commissary Agency
[_] Joint Interoperability Test Command

. Civilian Agencies or Departments
[_] Department of Energy
[_] Department of Justice
[_] National Aeronautics and Space Administration
[_] Environmental Protection Agency
[_] Internal Revenue Service
[_] National Institutes of Health, including the National Cancer
Institute

Our revenues derived from our federal government customers, consisting
primarily of customers in the intelligence community and Department of Defense,
accounted for approximately 95.8% of our revenues for the nine months ended
September 30, 2001, and approximately 96.1%, 96.0% and 97.1% of our revenues
for 2000, 1999 and 1998, respectively. Our federal government customers
typically exercise independent contracting authority, and even offices or
divisions within an agency or department may directly, or through a prime
contractor, use our services as a separate customer so long as that customer
has independent decision-making and contracting authority within its
organization. For example, under a blanket purchasing agreement with one of the
Army's contracting agencies, program managers throughout the Army and from
other services and defense agencies are able to purchase a wide range of our
solutions. Even though task orders under this agreement together accounted for
12.5% of our revenues for the nine months ended September 30, 2001, no one task
order represented more than 4.7% of our revenues during that period.

For 2000 and the nine months ended September 30, 2001, we derived 7.8% and
8.4%, respectively, of our revenues through relationships with prime
contractors, who contract directly with the customer and subcontract to us. For
2000, we derived 98.7% and 1.3% of our revenues from services provided in the
United States and abroad, respectively. For the nine months ended September 30,
2001, we derived 98.4% and 1.6% of our revenues from services provided in the
United States and abroad, respectively.

Representative Customer Solutions

We have selected the following case studies to illustrate the breadth of
comprehensive information technology and technical services solutions that we
provide and the range of customers that benefit from our solutions. While we
believe they are helpful in that regard, our selection of these case studies
should not be viewed as depicting our largest or most profitable contracts, the
full range of work that we have undertaken in the past or the type of contracts
we will pursue in the future.

Intelligence-Related Support

Task Objective: Establish and operate strategic and tactical intelligence
systems, networks and facilities in classified
environments to support our customers' worldwide
intelligence-related operations.

Solution: For over 20 years, we have supported a broad range of
strategic programs for classified agency customers to
enhance signals intelligence systems and infrastructure
availability and mission-critical functionality. We
design, develop, monitor, maintain and upgrade designated
site hardware, software, network and telecommunication
assets to support continuous operations. We have
consistently achieved required systems availability levels
while accommodating a broad range of new technology
integration initiatives for our customers' legacy systems.

For U.S. Army intelligence customers, we currently operate
four centers in the United States, one in Germany and one
in South Korea to support intelligence, electronic warfare
and other systems. These centers must be able to adapt and
expand to support a wide range of electronic maintenance
or logistics support missions. We perform broad
maintenance, logistical and administrative services,
including systems and network troubleshooting, maintenance
and repair, and installation, integration and testing of
electronic, electrical and mechanical equipment designed
for vehicular, airborne and portable platforms. We also
provide dedicated or on-call support on a 24x7 basis for
designated systems during exercise and active deployments.

U.S. Department of State Critical Infrastructure Protection Services

Task Objective: Establish program to support the Department of State's
electronic and physical security systems, network
intrusion detection systems, and classified communications
programs at worldwide embassies and posts.

Solution: We are the primary technology service provider responsible
for upgrading all electronic physical security
infrastructure at more than 250 U.S. embassies and posts
worldwide. This infrastructure includes perimeter
surveillance, closed-circuit television, intrusion
detection, access control and fire suppression systems. We
continuously evaluate emerging security technologies for
suitability and possible integration into Department of
State facilities.

We also assess and test commercial off-the-shelf cyber
intrusion detection products to meet the requirements of
each location. We test each product in our secure
laboratory prior to deployment. We recently designed and
implemented a network and PC-based intrusion detection
program compatible with the evolving virtual private
network architecture serving

the Department of State and the foreign affairs community.
We also provide incident handling support and develop
procedures for coordinating espionage investigations.

For one of the Secretary of State's highest information
technology priorities, we support the development of a
secure global network and infrastructure for 190 foreign
service post installations worldwide. We build, test and
integrate equipment into approved solution configurations,
which are shipped overseas and installed in the posts.
Based on the customer's connectivity requirements, the
solutions we provide range from simple secure dial-up to a
more complex secure NT local area network providing
classified message and e-mail delivery. To date, we have
successfully installed classified Windows NT-based local
area network solutions at 52 posts.

We have recently been tasked to provide Internet access
worldwide at each department desktop within a secure
infrastructure. We are developing a segmented architecture
that identifies how security functionality can be
implemented on local and wide area networks and host
resources.

U.S. Southern Command Headquarters Services

Task Objective: Establish and maintain C4I information management
processing capabilities for the headquarters of the U.S.
Southern Command in Miami, Florida.

Solution: We were the C4I systems integration contractor for the
relocation of the headquarters of the U.S. Southern
Command from Panama to Miami, Florida. We designed and
delivered a comprehensive integrated communications
solution for the new facility that enhanced the overall
information management capabilities of the command. We
designed secure and non-secure local area networks for the
new facility and migrated all military information
processing and communication networks and commercial
telecommunication services into a state-of-the-art,
commercial off-the-shelf enterprise solution. We completed
this $35 million program within 18 months, on-time, within
budget and without any interruption of mission operations.

Since the relocation, we have provided comprehensive
services in support of the U.S. Southern Command facility
to maintain and administer all automated information
systems and networks. Our personnel perform:

. Hardware and software maintenance services for all
headquarters systems, including web and software
development;

. Multimedia services and video teleconferencing
operations;

. Systems administration, help desk services and network
systems management on classified and unclassified
networks; and

. Technology upgrade integration to meet continuously
changing user requirements.

Defense Commissary Agency Corporate Information Utility Systems

Task Objective: Establish capability to support the Defense Commissary
Agency business enterprise systems infrastructure, which
consists of over 370 commissaries worldwide that service
millions of customers each year.

Solution: Since 1995, we have worked with the agency to conduct
detailed analyses of current and future agency business
requirements and to recommend integration of new
commercially available software and hardware products for
large-scale upgrades to the agency's legacy systems.
Recently, we developed the agency's first executive
decision support system that automates many of the
accounting functions performed at the individual
commissaries and provides a tool for region and zone
managers to effectively monitor their assigned stores.
We also developed and implemented a web-based electronic
data interchange interface that facilitates wholesale
point-of-sale capability and allows small grocery vendors
to submit product prices directly to the agency. It also
provides real-time tracking of all consumer product prices
and an on-line payment system. We deployed the solution to
all of the agency's regional headquarters and stores in
the United States. We believe our solutions played a key
role in the agency winning the award for the Best
Electronic Commerce Team in the Department of Defense in
1999.

Navy Tactical Command Support System

Task Objective: Develop an integrated suite of applications to support
mission-critical functions for a widely dispersed user
population in the Naval aviation community.

Solution: Since 1981, we have been the prime contractor for
development, implementation and systems life-cycle support
of major applications that comprise the Navy Tactical
Command Support System. This sophisticated logistics
management information system now consists of 19
applications ranging from stand-alone desktops to
web-enabled applications that facilitate management of the
information, personnel, material and funds required to
maintain and operate surface ships, submarines, aircraft
and shore commands. At least one of the 19 systems
applications is used aboard every ship in the Navy, in
every Navy and Marine Corps aviation organizational
maintenance activity and intermediate maintenance
activity, by Marine Corps ground combat forces, and by
more than 450 shore-based organizations worldwide.
Our recent improvements to legacy applications include the
integration of new technologies such as automated
identification technology for component tracking, two-way
data replication to facilitate information exchange among
commands and development of interfaces with new tools such
as smart cards and portable handheld electronic devices.
After re-engineering and modernizing legacy systems, we
are managing orderly, phased user migrations from legacy
systems to the new optimized systems.

Joint Interoperability Test Command Support Services

Task Objective: Support the Joint Interoperability Test Command in
conducting interoperability and certification testing of
new or upgraded C4I systems and information exchange
standards in the command's verification and
interoperability facility.

Solution: For the past 18 years, we have supported a wide range of
interoperability, certification and standards conformance
testing on tactical and strategic assets in support of all
military systems and operations. Our services include
comprehensive systems integration support during test and
certification processes. We develop test plans and
procedures, conduct tests and document test results on the
interoperability of all C4I systems. We have developed and
implemented networks; performed software development; and
provided facility support, including help desk support for
the command's 600-user local area network.
We designed, installed, and operate a $65 million Joint
Interoperability Testbed and the Network Interoperability
Testing Laboratory, consisting of tactical equipment from
the various military services interconnected through a
distributed test network. This virtual test network is
quickly reconfigurable to replicate operational networks
and permits the interconnection and testing of equipment
and networks anywhere in the world. We also support the
Joint Logistics Warfighter Initiative designed to improve
military readiness by improving the responsiveness of
multiple logistics systems of different military branches
by integrating current technologies and business process
improvements. We deploy with the command during military
exercises and contingency operations and have supported 53
operations globally since 1991.

Backlog and GSA Schedule Contract Value

At September 30, 2001, our backlog was $765.0 million, of which $228.6
million was funded backlog. At September 30, 2000, our backlog was $871.9
million, of which $282.5 was funded backlog. In addition, we estimate our GSA
schedule contract value at September 30, 2001 was $1,051.8 million. At
September 30, 2000, we estimate our GSA schedule contract value was $311.8
million. Backlog, funded backlog and GSA schedule contract value represent
estimates that we calculate on the bases described below. We expect that more
than 93.5% of our funded backlog at September 30, 2001 will be recognized as
revenues prior to September 30, 2002.

We define backlog as our estimate of the remaining future revenues from
existing signed contracts, assuming the exercise of all options relating to
such contracts and including executed task orders issued under GSA schedule
contracts. This includes an estimate of revenues for solutions that we believe
we will be asked to provide in the future under the terms of executed
multiple-award contracts in which we are not the sole provider, meaning that
the customer could turn to companies other than us to fulfill the contract. It
also includes an estimate of revenues from indefinite delivery, indefinite
quantity contracts, which specify a maximum, but only a token minimum, amount
of goods or services that may be provided under the contract. Backlog does not
include the value for contracts where we have been given permission by the
customer to begin or continue working, but where a formal contract or contract
extension has not yet been signed.

We define funded backlog to be the portion of backlog for which funding
currently is appropriated and allocated to the contract by the purchasing
agency or otherwise authorized for

payment by the customer upon completion of a specified portion of work. Our
funded backlog does not include the full value of our contracts, because
Congress often appropriates funds for a particular program or contract on a
yearly or quarterly basis, even though the contract may call for performance
that is expected to take a number of years.

At September 30, 2001, our backlog included $293.2 million of revenues for
solutions pursuant to task orders that have been executed under GSA schedule
contracts, of which $119.0 million was included in funded backlog. The amount
of our revenues generated under GSA schedule contracts has increased in recent
years. Specifically, for the years ended December 31, 1998, 1999, and 2000,
funded awards under GSA schedule contracts were $35.1 million, $102.5 million
and $135.2 million, respectively, and for the nine months ended September 30,
2001, funded awards under GSA schedule contracts were $136.1 million. We
believe that potential GSA schedule contract revenues are not fully reflected
in traditional backlog calculations because, as described below, while GSA
schedule contracts provide our customers with the flexibility to obtain our
solutions through a streamlined procurement process, they do not provide for
fixed, minimum or maximum purchase commitments. Therefore, we have developed a
method of calculating GSA schedule contract value that we use to evaluate
estimates for the amount of revenues that we may receive under our GSA schedule
contracts. For these purposes, we determine GSA schedule contract value by
multiplying the average monthly amount of funded work that we have been awarded
under each of our GSA schedule contracts over the past nine months, by the
number of months remaining in the term of those contracts, including under
existing options, except that we do not take into account remaining contract
terms of more than 72 months. Under this method, our GSA schedule contract
value as of September 30, 2001 was approximately $1,051.8 million. Beginning in
January 2002, we intend to calculate GSA schedule contract value by multiplying
the average monthly amount of funded work that we have been awarded under each
of our GSA schedule contracts over the preceding twelve months by the number of
months remaining in the term of those contracts, including under existing
options, except that we do not take into account remaining contract terms of
more than 72 months.

GSA schedule contracts are competitively awarded government-wide
acquisition contracts negotiated and awarded by the General Services
Administration and effectively act as fixed-price or time-and-materials
contracts which government agencies may, but are not required to, use to
purchase professional services and information technology products at
predetermined ceiling prices, terms and conditions. Many of our customers are
authorized to use GSA schedule contracts through blanket purchase agreements,
which operate similarly to GSA schedule contracts by permitting one or more
federal agencies to purchase professional services or products from technology
service providers at predetermined prices, terms and conditions. GSA schedule
contracts are master agreements that do not, by themselves, authorize the
delivery of services or products. Therefore, even though we have been awarded a
GSA schedule contract or blanket purchase agreement, we often must actively
solicit post-award sales, and it remains difficult for us to estimate the
amount of work, if any, we will obtain under the contract.

GSA schedule contracts benefit our federal government customers in a number
of ways. First, they provide customers a streamlined means to competitively
obtain professional services and technology products, allowing for a more
efficient and timely procurement process. Second, because we must actively
promote our services and technology to obtain work under these types of
agreements, the customer benefits from continued competition. Third, as with
fixed-price or time-and-materials contracts, GSA schedule contracts shift the
risks of cost overruns to the technology service provider and promote effective
contract management and cost-efficiencies by allowing the technology service
provider to receive the benefit of cost savings that it generates. Although we
must compete for or solicit individual task orders under GSA schedule
contracts, we have found that they can benefit

companies such as ours which can respond quickly to emerging customer
requirements and can manage contract performance efficiently. Finally, as with
traditional fixed-price contracts, GSA schedule contracts involve greater
financial risk but we believe offer opportunities for higher profitability
because we bear the impact of cost overruns and receive the benefit of cost
savings.

Changes in the amount of our backlog, funded backlog and GSA schedule
contracts value result from potential future revenues from the execution of new
contracts or the extension of existing contracts, reductions from contracts
that end or are not renewed, reductions from the early termination of
contracts, and adjustments to estimates of previously included contracts.
Changes in the amount of our funded backlog and GSA schedule contract value
also are affected by the funding cycles of the government. These estimates of
future revenues are necessarily inexact and the receipt and timing of any of
these revenues is subject to various contingencies, many of which are beyond
our control. The actual accrual of revenues on programs included in backlog,
funded backlog and GSA schedule contract value may never occur or may change
because a program schedule could change or the program could be canceled, a
contract could be modified or canceled, an option that we have assumed would be
exercised is not exercised or initial estimates regarding the level of
solutions that we may provide could prove to be wrong. For the same reason, we
believe that period-to-period comparisons of backlog, funded backlog and GSA
schedule contract value are not necessarily indicative of future revenues that
we may receive.

Sales and Marketing

We market our solutions through the valuable relationships of our senior
management, advisory board and business development staff. We also seek to
leverage existing customer relationships and respond to competitive
solicitations.

We employ a team-selling approach, where our senior management, business
development staff and our program managers collaborate in identifying and
developing business opportunities. With this approach, we are able to assess
opportunities quickly, drawing on the experience and perspective of senior
personnel across the company, including those working in close proximity with
our customers. We have also established a formal process for making bid/no-bid
decisions and use automated resources to track the status of each bid
opportunity. We have effectively used GSA schedule contracts to respond quickly
to emerging customer requirements.

To supplement or complement our core competencies, we have teaming
relationships to work together on contracts with various industry partners,
such as Computer Sciences Corporation, Electronic Data Systems Corporation and
TRW Inc. While we are the prime contractor on substantially all of our
contracts, we serve as subcontractor when teaming in that manner furthers our
goals of expanding our customer base or pursuing high growth markets.
Similarly, in some cases, we establish joint ventures with other companies in
order to present the best value solution or proposal, particularly when we seek
to enter new markets.

Employees

As of October 31, 2001, we had 3,539 employees, including 1,758 employees
with government security clearances. Of these employees, 1,100 employees hold
Top Secret security clearances, including 613 employees who have access to
Sensitive Compartmented Information. Our employees with security clearances
have already completed the lengthy process necessary to obtain the clearance.
This process typically requires a candidate to be sponsored by the government
with respect to a particular requirement, entails extensive background
investigations that typically take from six months to a year and, for the most
restricted access, may require successful completion of polygraph testing.

Over 3,150 of our employees are technical and service professionals and
managers, and over 350 are in administrative or executive functions.
Approximately 185 of our employees, all of whom are located at NASA's Goddard
Space Flight Center, are represented by the International Brotherhood of
Electrical Workers union under a collective bargaining agreement which is due
to expire in June 1, 2005. We have not experienced any work stoppage or strike
by these employees.

We believe we are successful in retaining our employees by offering
competitive salary structures, attractive incentive compensation and benefits
programs, career growth opportunities, flexible work assignments and the
opportunity to perform mission-critical services, often in classified
environments. Our current employees are offered an opportunity to respond to
new job opportunities before we pursue external recruiting. We consider our
relations with employees to be good.

Competition

We believe that the major competitive factors in our market are distinctive
technical competencies, security clearances, price of services, successful past
contract performance, reputation for quality and key management with domain
expertise. Our key competitors currently include divisions of large defense
contractors, such as BAE SYSTEMS, plc, Lockheed Martin Corporation, Northrop
Grumman Corporation, Raytheon Company and TRW Inc., as well as information
technology service companies, such as Affiliated Computer Systems, Inc., Booz
Allen & Hamilton, CACI International, Inc., Computer Sciences Corporation,
DynCorp, Electronic Data Systems Corporation, Science Applications
International Corporation, Titan Corporation and Veridian Corporation.

Intellectual Property

Our solutions are not generally dependent upon patent protection. We
routinely enter into confidentiality and non-disclosure agreements with our
employees to protect our trade secrets. Our rights in intellectual property
that we develop depend in part on the degree to which the intellectual property
is developed with our private funds, rather than with funds of the federal
government. Our federal government contracts routinely provide that we may
retain ownership rights in works of authorship and inventions developed during
the performance of those contracts. However, the rights granted to the federal
government are, from time to time, a source of negotiation, and typically
include the right of the federal government to use and share our intellectual
property with other government contractors, making it impossible for us to
prevent their non-exclusive use of our intellectual property. Our ability to
protect our rights in intellectual property developed or delivered under
government contracts also is dependent upon our compliance with applicable
federal procurement statutes and regulations. There can be no assurance that
the steps we take to protect our intellectual property will be adequate to
deter misappropriation or to prevent use by others of our intellectual property.

Legal Proceedings

On July 29, 1999, Thomas Harris Corporation filed suit in state court in
Rockwall County, Texas, against our environmental remediation subsidiary (which
is among our businesses included in discontinued operations) and subcontractors
to that subsidiary, alleging that our subsidiary or its subcontractors caused
soil and groundwater contamination by improperly disposing of dry cleaning
solvents, and seeking an unspecified amount of actual, consequential and
punitive damages. We vigorously dispute and deny these allegations. Trial in
this case has been set for April 22, 2002. While the ultimate outcome of
litigation cannot be assured, if and to the extent that the damages alleged by
the plaintiffs are ultimately determined to be our responsibility, we believe
that we will be able to

recover a portion of the amount from our professional liability insurance,
including fees for our attorneys, and that any amounts that we bear will not
have a material adverse effect on our business, prospects, financial condition
or operating results.

On June 1, 2001, CHBP, Ltd., a customer of our environmental remediation
subsidiary, filed suit against third party defendants alleging that they caused
soil and groundwater contamination while occupying a commercial business center
owned by CHBP, Ltd. On November 15, 2001, some of the defendants in this suit
filed a petition seeking to join our environmental remediation subsidiary as a
third-party defendant, alleging that services provided by our subsidiary to
CHBP, Ltd. caused or contributed to the alleged contamination of the property.
We intend to contest this motion seeking to join our subsidiary as a
third-party defendant, and believe that we have other defenses and claims,
including indemnification claims and professional liability insurance coverage,
and do not believe this litigation will have a material adverse effect on our
business, prospects, financial condition or operating results.

Like most large government defense contractors, our contract costs are
audited and reviewed on a continual basis by an in-house staff of auditors from
the Defense Contract Auditing Agency. In addition to these routine audits, we
are subject from time to time to audits and investigations by other agencies of
the federal government. These audits and investigations are conducted to
determine if our performance and administration of our government contracts is
compliant with contractual requirements and applicable federal statutes and
regulations. An audit or investigation may result in a finding that our
performance and administration is compliant or, alternatively, may result in
the government initiating proceedings against us or our employees, including
administrative proceedings seeking repayment of monies, suspension and/or
debarment from doing business with the federal government or a particular
agency, or civil or criminal proceedings seeking penalties and/or fines. Audits
and investigations conducted by the federal government frequently span several
years. Other than routine audits of our contract costs, we are not aware of any
other government audits or investigations except as set forth below.

On August 17, 2001, we were served with a grand jury subpoena issued by the
United States District Court for the Eastern District of Virginia. The U.S.
Attorney's Office for the Eastern District of Virginia has advised us that the
investigation relates to whether we improperly charged a portion of our
corporate merger and acquisition-related expenses and certain expenses of our
Australian-based software consulting subsidiary (which is one of our businesses
included in discontinued operations) in a manner that would have resulted in
those expenses being reimbursed by the U.S. government. This investigation is
in its preliminary stages and accordingly it is too early to tell whether the
consequences of the investigation will have a material adverse effect on our
business, prospects, financial condition or operating results. We are fully
cooperating with the federal government's investigation of this matter.

We also are currently subject to an investigation by the Inspector General
of the Department of State regarding our allocation of costs to a contract with
the Department of State and an investigation by the Inspector General of the
EPA regarding the number of hours we charged in the performance of a contract
with the EPA. We do not believe that the outcome of either of these
investigations will have a material adverse effect on business, prospects,
financial condition or operating results. We are fully cooperating with the
federal government's investigation of both matters.

In addition to the foregoing, we are subject to certain other legal
proceedings, claims and disputes which arise in the ordinary course of our
business. Although we cannot predict the outcomes of these other legal
proceedings, based on the information now available to us, we do not believe
that the ultimate resolution of these matters, either individually or in the
aggregate, will have a material adverse effect on our business, prospects,
financial condition or operating results.

Facilities

Since 1992, we have leased our corporate headquarters office building in
Fairfax, Virginia. We are in the fourth year of a ten-year lease on this
facility. As of September 30, 2001, we leased 21 additional operating
facilities throughout the metropolitan Washington, D.C. area and 63 facilities
in other parts of the United States. We also have employees working at customer
sites throughout the United States and in other countries. We believe that our
facilities are adequate to support the normal course of business.

MANAGEMENT AND KEY EMPLOYEES

Directors and Executive Officers

The following table sets forth information concerning our directors and
officers as of October 31, 2001.

Name Age Position
- ---- --- --------

George J. Pedersen. 66 Chairman of the Board of Directors, Chief Executive Officer
and President
John A. Moore, Jr.. 49 Executive Vice President, Chief Financial Officer, Treasurer
and Director
R. Evans Hineman... 67 Executive Vice President and Chief Science and Technology
Officer
Eugene C. Renzi.... 67 Executive Vice President
Jerry L. Unruh..... 61 Senior Vice President
Bradley H. Feldmann 40 Senior Vice President
Michael D. Golden.. 61 Director
Stephen W. Porter.. 62 Director
Walter W. Vaughan.. 68 Director

George J. Pedersen -- Co-founder, Chairman of the Board of Directors, Chief
Executive Officer and President. Mr. Pedersen, who co-founded ManTech in 1968,
has served as Chairman of the Board of Directors since 1979, adding the
positions of Chief Executive Officer and President in 1995. Mr. Pedersen has
been a Director of GSE Systems, Inc., an affiliated software design and
development company, since 1994 and an executive employee since 1999. Mr.
Pedersen has served on the board of directors of GP Strategies Corporation, a
workforce development company that provides training, management systems and
engineering services, since 2001. Mr. Pedersen is Chairman of the Board of
Directors for the Institute for Software Research, Inc., a not-for-profit
corporation that performs research and advanced development of software and
related technologies, including research for NASA. Mr. Pedersen also serves as
a Director Emeritus of the Professional Services Council, a national
association of technology services companies, and as a Director and Executive
Committee member of the National Defense Industrial Association, a trade
association for the defense industry.

John A. Moore, Jr. -- Executive Vice President, Chief Financial Officer,
Treasurer and Director. Mr. Moore joined us in 1982 and has served as Chief
Financial Officer since 1993 and Executive Vice President since 1997 and has
been a Director of our company since 1994. Mr. Moore oversees our financial
operations and our business development activities. Mr. Moore has been a
Director of GSE Systems, Inc., since 1997 and an executive employee since 1999.
Prior to joining us, Mr. Moore was a supervisory auditor for the Defense
Contract Audit Agency, which is responsible for performing contract audits for
the Department of Defense.

R. Evans Hineman -- Executive Vice President and Chief Science and
Technology Officer, ManTech International Corporation; President, National
Security Solutions Group. Mr. Hineman joined us in 2001. From 1999 to 2001, he
served as Vice President for Intelligence of Litton Industries Inc.'s
Information Systems Group. From 1989 to 1999, Mr. Hineman was an officer of
TASC, Inc., a provider of information management and systems engineering
solutions, serving as President from 1998 to 1999. From 1964 to 1989, Mr.
Hineman worked for the Central Intelligence Agency, serving as Deputy Director
for Science and Technology from 1982 to 1989. Prior to 1982, he held various
other senior positions with the Central Intelligence Agency, including Director
of Weapons Intelligence and Chairman of the Director of Central Intelligence's
Weapon and Space Systems

Intelligence Committee. Mr. Hineman was one of 50 recipients of the Trailblazer
award on the 50th anniversary of the Central Intelligence Agency, and he was
awarded the Central Intelligence Agency's Distinguished Intelligence Medal and
the National Reconnaissance Office's Distinguished Service Medal.

Eugene C. Renzi -- Executive Vice President, ManTech International
Corporation; President, ManTech Telecommunications and Information Systems
Corporation (MTISC). Major General, U.S. Army (Ret.). Major General Renzi
joined us in 1993 and since 1995 has served as President of MTISC. Prior to
1993, Major General Renzi served in the U.S. Army for more than 32 years,
including as Director for Command, Control and Communications Systems for the
U.S. Pacific Command from 1988 to 1990. Major General Renzi received numerous
awards and decorations for his service in the U.S. Army, including the Defense
Superior Service Medal, the Legion of Merit and the Joint Service Commendation
Medal.

Jerry L. Unruh -- Senior Vice President, ManTech International Corporation;
President, Systems Engineering Group. Vice Admiral, U.S. Navy (Ret.). Vice
Admiral Unruh joined us in 1998 and since 1999 has served as President of
ManTech Systems Engineering Corporation. From 1996 to 1998, Vice Admiral Unruh
served as the President of the Association of Naval Aviation, a not-for-profit
corporation that educates the public and national leaders about the role of
naval aviation in national defense. Prior to that, Vice Admiral Unruh served in
the U.S. Navy for over 37 years, including as Commander of the U.S. Third Fleet
in the Pacific, Current Operations and Readiness Officer for the NATO Staff of
Supreme Allied Commander Europe and held battlegroup, aircraft carrier and
fighter squadron commands. Vice Admiral Unruh received numerous awards for his
service in the U.S. Navy, including the Distinguished Service Medal, the
Defense Superior Service Medal, the Legion of Merit and the Air Medal.

Bradley H. Feldmann -- Senior Vice President, ManTech International
Corporation; President, Information Technology Group. Mr. Feldmann joined us in
2000. Mr. Feldmann served as the Senior Vice President and Chief Operating
Officer of Comptek Research, Inc., a company supplying operational signal
processing software for military systems that was acquired by Northrop Grumman
Corporation in 2000. From 1989 to 1999, Mr. Feldmann worked for Cubic Defense
Systems, Inc., a provider of combat training systems, where he served in
various positions, including Senior Vice President and Chief Operating Officer.
Prior to that, Mr. Feldmann served with the U.S. Air Force for five years and
received two Meritorious Service Medals.

Michael D. Golden -- Director. Mr. Golden has been a Director of our
company since 1995. He is a founding partner of the law firm of Golden &
Nelson, PLLC, where he has practiced law since 1998, focusing on corporate and
securities law. Prior to founding Golden & Nelson, PLLC, he was a partner at
the law firm of Ginsburg, Feldman & Bress, Chtd. from 1996 to 1997, and prior
to that, he was a partner at Verner, Liipfert, Bernhard, McPherson and Hand
from 1991 to 1996.

Stephen W. Porter -- Director. Mr. Porter has been a Director of our
company since 1991. Mr. Porter is a partner at the law firm of Arnold & Porter
where he has practiced law since June 1993, focusing on real estate, tax and
corporate law. Mr. Porter became a certified public accountant in 1961. Mr.
Porter currently serves on the board of directors of the Greater Washington
Board of Trade and the District of Columbia Chamber of Commerce. From 1992 to
1994, he served as a member of the Advisory Board of the Center for Strategic
and International Studies, a non-partisan public policy institute.

Walter W. Vaughan -- Director. Mr. Vaughan has been a Director of our
company since 1991. Mr. Vaughan has been self-employed as a consultant to us
since 1990. From 1956 to 1989, Mr. Vaughan worked in the banking industry,
serving most recently as an Executive Vice President of American Security Bank
N.A. in Washington, D.C., and as Vice Chairman of the bank's advisory board
from 1983 to 1985. From 1986 to 1989, Mr. Vaughan served as Chief Agent for the
Receiver for the Maryland Deposit Insurance Fund, for which he received a State
of Maryland Governor's citation.

Advisory Board

Our advisory board, which is comprised of recognized leaders in the
intelligence community and defense industry, assists us in identifying
opportunities to provide our solutions to the federal government. Our advisory
board consists of the following individuals as of October 31, 2001:

Richard J. Kerr (Age 66) -- Mr. Kerr has been Chairman of our Advisory
Board since 1994. Mr. Kerr currently is a member of the President's Commission
on Intelligence Reform. Since 1996, Mr. Kerr has served as President of the
Security Affairs Support Association, an organization composed of government
and industry members that is focused on national security policy. Prior to
that, Mr. Kerr worked at the Central Intelligence Agency for 32 years,
including serving as Deputy Director for Central Intelligence. Mr. Kerr
formerly served as a member of the Scientific Advisory Board of the National
Security Agency and the Board of Visitors of the Joint Military Intelligence
College and is currently on the advisory boards of the Los Alamos National
Laboratory and the Lawrence Livermore Laboratory. Mr. Kerr was awarded the
Citizens Medal, the second highest civilian award given by the President of the
United States, and two National Intelligence Distinguished Service Medals and
two Distinguished Intelligence Medals from the Central Intelligence Agency.

Dr. Roger L. Hagengruber (Age 59) -- Dr. Hagengruber has been a member of
our Advisory Board since 1994. Dr. Hagengruber is the Senior Vice President for
National Security at Sandia National Laboratories, a U.S. government research
and development laboratory, where he has held a number of key positions since
1972. Dr. Hagengruber has extensive experience on issues involving arms
control, satellite and sensor systems and national security. Dr. Hagengruber
has served in a variety of government assignments, including four assignments
as a member of various U.S. arms control negotiating teams. In 1979, Dr.
Hagengruber was appointed the U.S. expert to an international forum on New
Weapons of Mass Destruction.

Harley A. Hughes Lt. Gen., U.S. Air Force (Ret.) (Age 66) -- Lt. General
Hughes has been a member of our Advisory Board since 1996. Lt. General Hughes
is the Chairman of F & H One, Inc., where he has worked since 1997, and he is
the President of USTAR, LLC, where he has worked since 1997, both privately
held consulting firms. Prior to that, Lt. General Hughes served for 31 years in
the U.S. Air Force, including as the U.S. Air Force Deputy Chief of Staff for
plans and operations and the U.S. Air Force Operations Deputy, Joint Chiefs of
Staff from 1985 to 1988. Lt. General Hughes received a Silver Star, the
Distinguished Flying Cross, the Distinguished Service Medal, the Defense
Superior Service Medal and the National Defense Service Medal.

David E. Jeremiah Admiral, U.S. Navy (Ret.) (Age 67) -- Admiral Jeremiah
has been a member of our Advisory Board since 1994. From 1994 to the present,
Admiral Jeremiah has served as President of Technology Strategies & Alliances
Corporation, a strategic advisory and investment banking firm engaged primarily
in the aerospace, defense, telecommunications and electronics industries. Prior
to that, Admiral Jeremiah served in the U.S. Navy for more than 39 years,
including as Vice Chairman, Joint Chiefs of Staff for Generals Colin L. Powell
and John M. Shalikashvili from 1990 to 1994.

Admiral Jeremiah serves on the board of directors for Alliant Techsystems Inc.,
a manufacturer and developer of solid propulsion systems, on the board of the
National Committee on U.S.-China Relations and on an advisory board for
Northrop Grumman Corporation. Admiral Jeremiah also is a member of various
government commissions, including a joint Defense Policy Board and Defense
Science Board Task Force on Theater Missile Defense, the Commission to Assess
U.S. National Security Space Management and Organization, the National Defense
Panel on Department of Defense's Quadrennial Defense Review and a Defense
Science Board Task Force on Human Resources.

Sir Colin McColl (Age 69) -- Sir Colin McColl has been a member of our
Advisory Board since 1998. From 1994 to the present, Sir Colin McColl has been
a consultant for Oxford Analytica, an international consulting firm, focusing
on political and economic affairs, since 1994. Prior to that, Sir Colin McColl
served in the British Secret Intelligence Service for 38 years, including as
Chief of the British Secret Intelligence Service from 1988 until 1994. Sir
Colin McColl is a Director of the Scottish-American Investment Trust and an
advisory director of Campbell Lutyens, an international private equity firm.
Sir Colin McColl is an honorable fellow for the Queen's College, Oxford
University.

Thomas C. Richards General, U.S. Air Force (Ret.) (Age 71) -- General
Richards has been a member of our Advisory Board since 1994. From 1997 to the
present, General Richards has been a member of the Center for Advanced Aviation
System Development of the MITRE Corporation, a not-for-profit national
technology resource corporation. From 1993 to 1997, General Richards was
President and Chief Executive Officer of the National Security Industrial
Association, a trade association for the defense industry. In 1992 and 1993,
General Richards served as the Administrator of the Federal Aviation
Administration, and prior to that served as an appointee of President George H.
Bush to the Presidential Commission on Aviation Security and Terrorism. Prior
to that, General Richards served in the U.S. Air Force for 33 years, including
as Deputy Commander Chief of the U.S. European Command. General Richards is a
member of the Federal Aviation Administration Future Planning Committee and the
Air Force Senior Statesmen Program. General Richards received the Distinguished
Service Medal, the Silver Star with Oak Leaf, the Legion of Merit with Oak
Leaf, the Distinguished Flying Cross, 18 Air Medals, the Bronze Star and the
Purple Heart with Oak Leaf.

Board of Directors

Upon the closing of this offering, our board of directors will consist of
five individuals. Our board of directors is elected annually, and each director
holds office for a one-year term. Mr. Pedersen is, and will continue to be
after the closing of this offering, the beneficial owner of a majority of the
voting power of our common stock and will be able to unilaterally elect or
remove directors.

Committees of our Board of Directors

Our board of directors has a compensation committee and, in connection with
this offering, formed an audit committee. Our board of directors may from time
to time establish other committees.

Audit Committee. Prior to the closing of this offering, our audit committee
is comprised of two non-employee directors, Mr. Golden and Mr. Vaughan.
Following the closing of this offering, our audit committee will be comprised
of at least three independent directors within the meaning of Nasdaq listing
rules. The primary responsibilities of the audit committee are to:

. Oversee management's conduct of our financial reporting process and
systems of internal accounting and financial control;

. Monitor the independence and performance of our outside auditor;

. Provide an avenue of communication among the outside auditor, management
and our board of directors;

. Make reports and recommendations to our board and our stockholders as
necessary under the rules of the Securities and Exchange Commission or as
otherwise within the scope of its functions; and

. Oversee and, where appropriate report to our board on, our review of and
response to any government audit, inquiry or investigation, as they
determine to be appropriate.

Compensation Committee. Our board of directors has a compensation
committee, which consists of three directors prior to the closing of this
offering. Immediately after this offering, at least two directors on the
compensation committee will be independent or outside directors, as determined
with reference to the rules of the U.S. Securities and Exchange Commission and
the Internal Revenue Code. The compensation committee will have the authority
to recommend to the board or establish compensation for our directors and
officers, to approve employee health and benefit plans and to administer our
stock plans.

Compensation Committee Interlocks and Insider Participation. Prior to this
offering, our compensation committee has been comprised of Mr. Vaughan as
Chairman, Mr. Pedersen and Mr. Moore. Mr. Pedersen also serves as our Chairman,
Chief Executive Officer and President. Mr. Moore also serves as our Executive
Vice President, Chief Financial Officer, Treasurer and Director.

We have from time to time extended loans to our Chairman of the Board of
Directors, Chief Executive Officer and President, George J. Pedersen. This
indebtedness is represented by promissory notes executed by Mr. Pedersen, which
bear interest at a rate of 8.0%. The largest aggregate amount outstanding since
January 1, 1998, was $183,122. As of the date of this prospectus, the
outstanding amount of indebtedness is $83,122.

In January 2000, our predecessor corporation, ManTech International
Corporation (New Jersey), purchased 6,582 shares of its Class B common stock
from Mr. John A. Moore, Jr., our Executive Vice President, Chief Financial
Officer, Treasurer and Director, for an aggregate purchase price of $566,082.

Director Compensation

Prior to this offering, Messrs. Golden and Porter were paid annual
retainers of $25,000 for their service as directors and Mr. Vaughan was paid an
annual retainer of $40,000 for service as a director and as chairman of our
compensation committee. The remaining directors are employed by us and are not
separately compensated for their service as directors. Following this offering,
the compensation committee will from time to time establish compensation for
the non-employee directors.

Executive Compensation

The following table shows the cash compensation and certain other
compensation paid to or accrued by our Chief Executive Officer and our four
most highly compensated executive officers, whom we refer to collectively as
our named executive officers, for 2000.

Summary Compensation Table

Annual Compensation
------------------------------
Other Annual All Other
Name and Principal Position(1) Year Salary Bonus(2) Compensation Compensation(3)
- ------------------------------ ---- ---------- -------- ------------ ---------------

George J. Pedersen, Chairman of the Board of
Directors, Chief Executive Officer and
President.................................. 2000 $1,320,010 $500,000 $53,646 (4) $219,577
John A. Moore, Jr., Executive Vice President,
Chief Financial Officer, Treasurer and
Director................................... 2000 495,019 350,000 -- 28,761
Eugene C. Renzi, Executive Vice President.... 2000 437,507 150,000 -- 24,737
William H. Ammann, Senior Vice
President(5)................................ 2000 275,018 25,000 -- 7,415
Timothy A. Hall, Senior Vice President(6).... 2000 235,009 40,000 -- 4,298

- --------
(1) Our executive officers for 2001 are Mr. Pedersen, Mr. Moore, Mr. Hineman,
Major General Renzi, Vice Admiral Unruh and Mr. Feldmann. Mr. Hineman is an
Executive Vice President and was hired on August 20, 2001. Vice Admiral
Unruh is a Senior Vice President and was hired on June 24, 1998. Mr.
Feldman is a Senior Vice President and was hired on December 4, 2000.
(2) Amounts shown in this column reflect bonuses earned in 2000 and paid in
2001.
(3) All Other Compensation consists of the following amounts: (a) matching
contributions made to our 401(k) plan in the amount of $3,046 for Mr.
Pedersen, $3,115 for Major General Renzi, $3,612 for Mr. Ammann and $850
for Mr. Hall; (b) contributions under our Employee Stock Ownership Plan in
the amount of $1,700 each for Mr. Moore, Major General Renzi, Mr. Ammann
and Mr. Hall; (c) payments for term life insurance in the amount of $21,229
for Mr. Pedersen, $2,061 for Mr. Moore, $19,922 for Major General Renzi,
$2,103 for Mr. Ammann and $1,748 for Mr. Hall; (d) payment of a premium
under a split dollar life insurance policy in the amount of $145,302 for
Mr. Pedersen; and (e) contributions to supplemental executive retirement
plans in the amount of $50,000 for Mr. Pedersen and $25,000 for Mr. Moore.
(4) Other Annual Compensation for Mr. Pedersen includes the portion of an
employee's time spent on non-corporate matters, which amounted to $33,370
in 2000.

(5) Mr. Ammann resigned as Senior Vice President and President of ManTech U.K.
Limited, the parent corporation of ManTech Advaned Recognition Limited,
which is being divested as a discontinued operation, on August 25, 2001.

(6) Mr. Hall resigned as Senior Vice President and President of ManTech
Environmental Corporation, which is being divested as a discontinued
operation, and ManTech Environmental Technology, Inc. on July 21, 2001.

Aggregated Option Exercises in 2000 and Year-End Option Values

The following table shows information about the value of unexercised
options at the end of 2000. No shares were acquired on the exercise of stock
options by these individuals in 2000.

Number of Securities Underlying Value of Unexercised In-the-Money Options at
Unexercised Options at Year-End Year-End
------------------------------- --------------------------------------------
Name Exercisable Unexercisable Exercisable Unexercisable
---- ----------- ------------- ------------- -------------

Pedersen -- -- $ -- $ --
Moore... 9,789(1) -- 1,304,188(2) --
Renzi... -- -- -- --
Ammann.. -- -- -- --
Hall.... -- -- -- --

- --------
(1) Exercisable for 9,789 shares of Class B common stock of our corporate
predecessor, ManTech International Corporation (New Jersey).

(2) There was no public market for our Class B common stock at December 31,
2000. Amounts shown under the column "Value of Unexercised In-the-Money
Options at Year-End" are based on an assumed fair market value of $160.69
per share at December 30, 2000 less the per share exercise price payable
for these shares, multiplied by the number of shares underlying the option.
This assumed fair market value does not necessarily represent the actual
value of our common stock at December 31, 2000.

Retention Agreements

Prior to the closing of this offering, we expect to enter into employment
retention agreements with George J. Pedersen and John A. Moore, Jr. Mr.
Pedersen's retention agreement provides for his employment at-will, with an
annual salary for 2002 of $1,000,000. Mr. Pedersen will continue to receive
contributions to qualified and non-qualified retirement plans, insurance
programs and prerequisites as provided in 2001, but is not eligible for stock
option grants or for a bonus for 2002. For subsequent years, Mr. Pedersen's
salary, bonus and incentive compensation shall be determined by the
Compensation Committee of our board of directors. If ManTech terminates Mr.
Pedersen's employment without cause, ManTech is required to pay Mr. Pedersen a
lump sum amount equal to the salary that would have been payable during the
"severance period," which is year following the termination of employment.
Mr. Pedersen agrees not to compete with ManTech and not to solicit its
customers or employees through the severance period. Mr. Moore's retention
agreement provides for an initial two-year term, with an automatic one year
extension on each anniversary of the agreement, unless either party provides
advance notice of its intent to terminate the agreement. Under the agreement,
Mr. Moore receives an annual salary of $ , and will continue to receive
contributions to qualified and non-qualified retirement plans, insurance
programs and prerequisites as provided in 2001. He is also entitled to
participate in bonus and other incentive compensation as determined by the
Compensation Committee of our board of directors. If ManTech terminates Mr.
Moore's employment without cause, ManTech is required to pay Mr. Moore a lump
sum amount equal to the salary that otherwise would have been payable through
the "severance period," which generally is the remaining term of the agreement
or 6 months, whichever is greater. Mr. Moore agrees not to compete with ManTech
and not to solicit its customers or employees through the severance period. We
also expect to enter into confidentiality and noncompete agreements with R.
Evans Hineman, Eugene C. Renzi, Jerry L. Unruh and Bradley H. Feldmann prior to
the closing of the offering. Under the terms of these confidentiality and
noncompete agreements, each officer agrees not to compete with ManTech and not

to solicit its customers or employees during the term of their respective
employments and for a period of one-year thereafter. As consideration for
entering into these confidentiality and noncompete agreements, we will grant
options to each officer to purchase shares of our Class A common stock.

Management Incentive Plan

In 2002, the board of directors adopted and our stockholders approved
our Management Incentive Plan. The plan is designed to enable us to attract,
retain and motivate our directors, officers and other senior management and
technical personnel, and to further align their interests with those of our
stockholders, by providing for or increasing their proprietary interest in
ManTech. The plan allows us to grant the following types of awards:

. Incentive stock options, which are intended to qualify under Section 422
of the Code;

. Non-qualified stock options, which are not intended to qualify as
incentive stock options;

. Incentive bonuses, which represent the right to receive an amount paid in
cash or Class A common stock based on satisfaction of performance
criteria as specified by the compensation committee; and

. Incentive stock, which is an award or issuance of shares of Class A
common stock, the grant, issuance, retention, vesting and/or
transferability of which is conditioned upon satisfaction of criteria
determined by the compensation committee.

Awards may be settled in cash or by stock units which provide for deferred
issuance of shares of Class A common stock. Any person who is a director, an
employee or a prospective employee of ours or any of our subsidiaries is
eligible to be selected as a recipient of an award under the plan. We intend to
grant options to our executive officers and key employees exercisable for
approximately shares of our Class A common stock at the initial public
offering price. Class B common stock may not be issued under the plan.

The plan will be administered by the compensation committee of our board of
directors, although the board of directors may exercise any authority of the
committee under the plan and the compensation committee may delegate its
authority under the plan. Subject to the express provisions of the plan, the
committee has broad authority to administer and interpret the plan, including
the discretion, in each case not inconsistent with the plan, to:

. Determine the exercise price and vesting schedule of options, the events
causing an option to expire, the number of shares of our Class A common
stock subject to any option, the restrictions on transferability of an
option and other terms and conditions;

. Determine the terms of any incentive bonus, including the target and
maximum amount payable to a participant as an incentive bonus, the
performance criteria and level of achievement versus these criteria that
determines the amount payable under an incentive bonus, the period as to
which performance will be measured for determining the amount of any
payment, the timing of any payment earned by virtue of performance, the
dollar amount or number of shares subject to any incentive bonus,
restrictions on the alienation or transfer of an incentive bonus prior to
payment, forfeiture provisions and other terms and conditions; and

. Determine the terms of any incentive stock award, including the number of
shares of Class A common stock subject to an incentive stock award or a
formula for determining that number,

the purchase price, if any, for the shares, the conditions that determine
the number of shares granted, issued, retainable and/or vested,
forfeiture provisions, the effect of termination of employment for
various reasons and other terms and conditions.

The aggregate number of shares of our Class A common stock that is
available for issuance under the plan is plus, in 2003 and each year
thereafter, a number of additional shares equal to one and one-half percent of
the number of shares of Class A common stock outstanding on January 1st of that
year. The aggregate number of shares issuable under Awards granted under the
plan during any calendar year to any eligible person may not exceed . The
number of shares authorized under the plan may be adjusted to account for stock
splits, stock dividends, recapitalization and similar events.

The board of directors may amend or alter the plan except that approval
from our shareholders is required for certain amendments to the plan, including
amendments that materially increase the number of shares available under the
plan, extend the term of the plan or alter eligibility standards.

Employee Stock Purchase Plan

In 2002, our board of directors adopted and our stockholders approved an
employee stock purchase plan. The plan is designed to qualify under Section 423
of the Internal Revenue Code. The purpose of the plan is to retain the services
of our employees, to attract new employees and to provide incentives for our
employees to exert maximum efforts for our success. Either our board of
directors or a committee of the board may serve as administrator of the plan.

The plan permits our eligible employees to purchase our Class A common
stock through payroll deductions. The aggregate number of shares of our common
stock issuable under the plan may not exceed shares. No employee may
purchase more than $25,000 in stock under the plan in any calendar year, and no
employee may purchase stock under the plan if such purchase would cause the
employee to own more than 5% of the voting power or value of our common stock.
Offering periods not to exceed 27 months will be established by the plan
administrator. On the offering date at the beginning of each offering period,
each eligible employee is granted an option to purchase a number of shares of
common stock, which option is exercised automically on the purchase date at the
end of the offering period. The purchase price of the common stock upon
exercise of the options will be set for each offering period by the plan
administrator, but may not be less than 85% of the stock's fair market value on
the offering date or purchase date, whichever is lower.

PRINCIPAL AND SELLING STOCKHOLDER

The following table sets forth information regarding the beneficial
ownership of our common stock as of October 31, 2001, and after giving effect
to this offering, with respect to:

. Each person or group known to us who beneficially owns five percent or
more of the outstanding shares of our common stock;

. Each director and named executive officer;

. Our executive officers and members of our board of directors as a group;
and

. The selling stockholder.

Except as indicated in the footnotes to the table, the persons named in the
table have sole voting and investment power with respect to all shares
beneficially owned. The business address of each person named in the table
below is 12015 Lee Jackson Highway, Fairfax, VA 22033-3300.
Beneficial ownership is determined in accordance with the rules of the
Securities and Exchange Commission and generally includes voting or investment
power with respect to securities. Shares of our common stock subject to options
that are currently exercisable or exercisable within 60 days of the date of
this prospectus are deemed outstanding for the purpose of computing the
percentage ownership of any person. These shares, however, are not considered
outstanding when computing the percentage ownership of any other person.

Class B Percent Of Vote Of All
Class A Common Stock(1) Common Stock(1) Classes Of Common Stock
---------------------------------------------- -------------- ---------------------------
Shares Beneficially Shares Shares to be
Owned Prior to this Being Beneficially Owned
Offering Offered After this Offering
------------------ ------- -------------------
Name Number Percent Offered Number Percent Number Percent Before Offering After Offering
- ---- ------ ------- ------- ------ ------- ------ ------- --------------- --------------

George J. Pedersen (selling
stockholder, Chairman of the
Board of Directors, Chief
Executive Officer and
President).................. (2) (3) % (4) 100% % %(3)
John A. Moore, Jr.(5)........ -- -- --
Walter W. Vaughan(6)......... -- -- --
Michael D. Golden(7)......... -- -- --
Bradley H. Feldmann.......... -- -- -- -- -- -- --
R. Evans Hineman............. -- -- -- -- -- -- --
Stephen W. Porter............ -- -- -- -- -- -- --
Eugene C. Renzi.............. -- -- -- -- -- -- --
Jerry L. Unruh............... -- -- -- -- -- -- --
All executive officers and
directors as a group
(9 persons)................. % -- % 100% % %

- --------

(1) The holders of each share of Class A common stock are entitled to one vote
per share, and the holders of each share of Class B common stock are
entitled to ten votes per share.

(2) Includes shares of Class A common stock owned by the ManTech Supplemental
Executive Retirement Plan for benefit of Mr. Pedersen, but does not include
shares of Class B common stock held by Mr. Pedersen, which convert at the
option of the holder of the Class B common stock to Class A common stock on
a one-for-one basis.

(3) Assumes no exercise of the underwriters' over-allotment option. If the
over-allotment option is exercised in full, Mr. Pedersen will own
shares (or %) of our Class A common stock after the closing of this
offering.

(4) Includes shares of Class B common stock owned by the Pedersen Family
Limited Partnership I; shares of Class B common stock held by the
ManTech International Corporation Special Assistance, Inc., a fund over
which Mr. Pedersen has voting and investment control; shares of Class B
common stock held by a grantor retained annuity trust over which Mr.
Pedersen shares voting and investment control as co-trustee of the trust;
and shares of Class B common stock held by his spouse.

(5) Includes an option to purchase shares of our Class A common stock
which is immediately exercisable.

(6) Includes shares of Class A common stock owned by the Defined Benefit
Pension Plan and Trust for benefit of Mr. Vaughan.

(7) Includes shares of Class A common stock owned by the Individual
Retirement Account of Michael Golden.

RELATED PARTY TRANSACTIONS

GSE Systems, Inc.

ManTech and its designees hold stock in GSE Systems, Inc. (GSE), a company
created by the merger of one of our majority-owned subsidiaries and two other
entities in 1994. As of September 30, 2001, we owned approximately 17.5% of
GSE's common stock. We also hold warrants that are currently exercisable for
150,000 shares of GSE's common stock.

In October 2000, we extended a loan to GSE, which is evidenced by a demand
promissory note for $1.8 million, which was amended and subsequently replaced
in March 2001. We amended this note in April 2001 to increase the amount due
under the note to $3.9 million. The largest aggregate amount outstanding under
this note and its predecessor note since October 2000 was $3.9 million.
Interest accrued on this note at the prime lending rate plus 1.0%. The $3.9
million demand note was convertible into shares of Series A preferred stock of
GSE, at the option of the holder any time after issuance and prior to the third
anniversary of issuance. On December 5, 2001, we exercised our option and
converted this $3.9 million promissory note receivable into 39,000 shares of
Series A preferred stock of GSE. The GSE Series A preferred stock has no voting
rights, and we have agreed to a holding period of one year from the date of
issuance, after which it is convertible into GSE common stock at any time
during the subsequent three-year period at a conversion price of $2.645 per
share.

We also extended a loan to GSE, which is evidenced by an additional
promissory note to GSE in June 2001. The largest aggregate amount outstanding
under this note since June 2001 has been $1.0 million, and as of October 31,
2001 this amount remains outstanding. Interest accrues on this note at the
prime lending rate plus 1.0%.

Under a purchasing arrangement with GSE entered into in January 2001, we
combined our purchases of products with purchases for GSE in order to obtain
volume discounts, for which GSE paid us the full purchase price plus a handling
fee. Purchases under this agreement totaled $843,290 for the nine months ended
September 30, 2001. This purchasing arrangement terminated in June 2001, and
GSE has no outstanding obligations to us, nor do we have any outstanding
obligations to GSE, in connection with this purchasing arrangement.

Our Chairman of the Board of Directors, Chief Executive Officer and
President, George J. Pedersen, as well as John A. Moore, Jr., our Executive
Vice President, Chief Financial Officer, Treasurer and Director, own 56,250 and
83,295 shares of GSE common stock, respectively, and serve on GSE's board of
directors. Mr. Pedersen and Mr. Moore entered into agreements with GSE in 1999
to serve as executive employees providing strategic planning in acquisitions
and divestitures,

management of financing arrangements and customer and other business
development activities. Under these agreements, GSE pays Mr. Pedersen and Mr.
Moore annual fees of $120,000 and $60,000, respectively, and granted Mr.
Pedersen and Mr. Moore options to purchase 100,000 and 50,000 shares,
respectively, of GSE common stock at an exercise price of $3.3125. Mr. Pedersen
and Mr. Moore intend to terminate their respective agreements on or prior to
the closing of this offering.

MARE, Incorporated

ManTech has loaned money to MARE, Inc., a marine products business. Mr.
Pedersen's son-in-law is the president of MARE, Inc., and Mr. Pedersen is the
owner of 50.0% of the outstanding capital stock of the company. Mr. Pedersen
and Mr. Moore also serve on the board of directors of MARE, Inc. The loan is
evidenced by a demand note that accrues interest at a rate of 10.0%. The
largest amount outstanding since January 1, 1998 was $1.5 million. As of the
date of this prospectus, this note had an outstanding balance of $1.3 million.
The principal outstanding under this note is adjusted on a daily basis, based
on amounts advanced to or paid down by MARE. As collateral for this note, MARE
has pledged to ManTech all of its inventory, consisting primarily of boats and
parts, and any other assets that are not otherwise encumbered. MARE intends to
pay the balance of principal and interest due on this note at the closing of
this offering.

Repurchases of Stock

In January 2000, our predecessor corporation purchased 6,582 shares of its
Class B common stock from Mr. John A. Moore, Jr., our Executive Vice President,
Chief Financial Officer, Treasurer and Director, for an aggregate purchase
price of $566,082, or $86.00 per share. In February 2000, our predecessor
corporation purchased 1,000 shares of its Class B common stock from Mr. Michael
Golden, one of our directors, for an aggregate purchase price of $86,060, or
$86.06 per share, and in December 2000 it purchased an additional 1,000 shares
of its Class B common stock from Mr. Golden for an aggregate purchase price of
$123,240, or $123.24 per share. The price per share for the January and
February 2000 repurchases was based on a valuation of the company as of
December 31, 1998 and the price per share for the December 2000 repurchase was
based on a valuation of the company as of December 31, 1999, divided by the
total number of shares outstanding of all classes of common stock. The same
independent third party valuation firm performed the respective valuations.

Legal Services

Mr. Stephen Porter, one of our directors, is a partner in the law firm of
Arnold & Porter, Washington, D.C., which has performed legal services for us
from time to time and is expected to do so in the future. The amount of fees we
paid to Mr. Porter's law firm did not exceed five percent of that firm's gross
revenues in each of its last three full fiscal years.

Mr. Michael Golden, one of our directors, is a partner in the law firm of
Golden & Nelson PLLC, Washington, D.C., which has performed legal services for
us from time to time and is expected to do so in the future. The amount of fees
we paid to Mr. Golden's law firm during 2000 totaled $57,675. The amount of
fees we paid to Mr. Golden's law firm for services rendered totaled $73,644 in
1998 and $77,978 in 1999.

Ownership of Subsidiary Stock

From time to time we have allowed certain of our officers or officers of
our subsidiaries to purchase minority interests of common stock in our
subsidiaries. These purchases have been pursuant

to stock purchase and restriction agreements that generally restrict the
transferability of the shares, including granting the subsidiary a right of
first refusal with respect to any proposed sale of the common stock by the
stockholder and granting the subsidiary a right to call the stock in the event
of death, permanent disability or termination of the stockholder's employment
by us or the subsidiary.

REGISTRAR AND TRANSFER AGENT

The registrar and transfer agent for the Class A common stock is American
Stock Transfer & Trust.

SHARES ELIGIBLE FOR FUTURE SALE

Shares Outstanding and Freely Tradeable After Offering

Upon completion of this offering, we will have shares of Class A common
stock and shares of Class B common stock outstanding (assuming that the
underwriters do not exercise their over-allotment option). Shares of Class B
common stock are convertible at the option of the holder into an equal number
of shares of Class A common stock. The shares of Class A common stock to be
sold by us in this offering and all shares sold by the selling stockholder will
be freely tradeable without restriction or limitation under the Securities Act
of 1933, as amended, except for any such shares held by our "affiliates", as
such term is defined under Rule 144 of the Securities Act. Shares of Class A
and Class B common stock held by our affiliates may be sold only if registered
under the Securities Act or sold in accordance with an applicable exemption
from registration, such as Rule 144. The remaining shares of our common
stock outstanding upon completion of this offering are restricted securities,
as defined under Rule 144 and may not be sold publicly unless they are
registered under the Securities Act or are sold pursuant to Rule 144 or another
exemption from registration.

Rule 144

In general, under Rule 144 under the Securities Act of 1933, as currently
in effect, beginning 90 days after the closing of this offering, a person,
including an affiliate, who has beneficially owned restricted securities that
were last purchased from us or an affiliate of ours at least one year before
the date the shares are proposed to be sold would be entitled to sell within
any three-month period, a number of shares that does not exceed the greater of:

. 1% of the then outstanding shares of that class of common stock; or
. The reported average weekly trading volume of that class of the common
stock on the automated quotation system of a registered securities
association or the consolidated transaction reporting system during the
four calendar weeks preceding such sale.

Sales under Rule 144 also are subject to certain requirements regarding the
manner of sale, notice and availability of current public information about us.
In addition, a person who is not deemed to have been an affiliate of ours at
any time during the 90 days preceding a sale, and who holds shares that were
last purchased from us or an affiliate of ours more than two years before the
date the shares are proposed to be sold, would be entitled to sell such shares
under Rule 144(k) without regard to the requirements described above.

We, our existing stockholders, our executive officers and the directors who
hold or are entitled to receive shares of common stock under our stock option
plans, have agreed not to offer, sell, contract to sell, grant any option to
purchase, announce any intention to sell, transfer the economic risk of
ownership in, make any short sale, pledge or otherwise dispose of, directly or
indirectly, or file a registration statement under the Securities Act relating
to, any shares of our common stock or securities or other rights convertible
into or exchangeable or exercisable for any shares of our common stock without
the prior written consent of the underwriters for a period of 180 days after
the date of this prospectus. See "Underwriting." Upon the expiration of this
180-day lock-up period, substantially all of these shares will become eligible
for sale, subject to the restrictions of Rule 144. These restrictions will not
affect our ability to:

. Issue and sell shares of our common stock or make any awards pursuant to
our stock option plans;

. Issue shares of our common stock pursuant to the exercise of stock
options currently outstanding or granted pursuant to our stock option
plans; or

. Issue shares of our common stock or securities convertible into, or
exercisable or exchangeable for, shares of our common stock in connection
with an acquisition of or merger with another corporation as long as such
securities are not registered under the Securities Act during this
180-day period. See "Underwriting."

Rule 701

Subject to limitations on the aggregate offering price of a transaction and
other conditions, Rule 701 may be relied upon with respect to the resale of
securities originally purchased from us by our employees, directors, officers,
consultants or advisers prior to the closing of this offering, pursuant to
written compensatory benefit plans or written contracts relating to the
compensation of such persons. In addition, the Securities and Exchange
Commission has indicated that Rule 701 will apply to stock options granted by
us before this offering, along with the shares acquired upon exercise of such
options. Securities issued in reliance on Rule 701 are deemed to be restricted
shares and, beginning 90 days after the date of this prospectus unless subject
to the contractual restrictions previously discussed, may be sold by persons
other than affiliates subject only to the manner of sale provisions of Rule 144
and by affiliates under Rule 144 without compliance with the two-year minimum
holding period requirements.

Stock Plan Registration Statements

We intend to file one or more registration statements under the Securities
Act covering approximately shares of common stock reserved for issuance
under our Management Incentive Plan, our Employee Stock Purchase Plan and with
respect to the employee stock option held by John A. Moore, Jr. These
registration statements are expected to be filed soon after the date of this
prospectus and will automatically become effective upon filing. Accordingly,
shares registered under the registration statements will be available for sale
in the open market, unless such shares are subject to vesting restrictions with
us or the contractual restrictions described above.

DESCRIPTION OF CAPITAL STOCK, CERTIFICATE OF INCORPORATION AND BYLAWS

General

Our authorized capital stock consists of shares of Class A common stock,
$0.01 par value, shares of Class B common stock, $0.01 par value, and shares
of preferred stock, $0.01 par value. Together, the Class A common stock and the
Class B common stock comprise all of the authorized common stock. As of
, 2001, there were shares of Class A common stock and shares of Class B
common stock outstanding and held of record by and stockholders,
respectively.

Common Stock

Upon completion of this offering, there will be shares of Class A common
stock and shares of Class B common stock outstanding. All of the outstanding
Class B common stock is beneficially owned by George J. Pedersen, our Chairman
of the Board of Directors, Chief Executive Officer and President. This
represents percent of all of the authorized common stock. In addition an
aggregate of shares of our common stock will be reserved for issuance
under our stock plans under which options to purchase shares of our
Class A common stock will be outstanding as of the date of this prospectus.

The rights, preferences and privileges of holders of our common stock are
subject to, and may be adversely affected by, the rights of holders of shares
of any series of preferred stock that we may designate and issue in the future.
The outstanding shares of our common stock are fully paid and non assessable.

Voting. Holders of Class A common stock are entitled to one vote for each
share held of record, and holders of Class B common stock are entitled to ten
votes for each share held of record, except with respect to any "going private
transaction" (generally, a transaction in which Mr. Pedersen or others acting
with him seek to buy all outstanding shares, as to which all shares of Class A
and Class B common stock have one vote per share). The Class A common stock and
the Class B common stock vote together as a single class on all matters
submitted to a vote of stockholders, including the election of directors by
proxy, except as required by law. Our common stock does not have cumulative
voting rights in the election of directors.

As a result of this offering, excluding any over-allotment shares, the
percentage of the voting power of the outstanding common stock owned or
controlled by Mr. Pedersen will decline to approximately % if the
underwriters' over-allotment option is exercised in full; but he will continue
to control all actions to be taken by the stockholders, including the election
of all directors to the board of directors. See "Principal and Selling
Stockholders" and "Risk Factors--Our Current Stockholders Will Continue To
Control Our Company."

Dividends; Stock Splits. Holders of the common stock are entitled to
receive, when and if declared by the board of directors from time to time, such
dividends and other distributions in cash, stock or property from our assets or
funds legally available for such purposes subject to any dividend preferences
that may be attributable to preferred stock that may be authorized. Each share
of Class A common stock and Class B common stock is equal in respect of
dividends and other distributions in cash, stock or property, except that in
the case of stock dividends, only shares of Class A common stock will be
distributed with respect to the Class A common stock and only shares of Class B
common

stock will be distributed with respect to Class B common stock. In no event
will either Class A common stock or Class B common stock be split, divided or
combined unless the other class is proportionately split, divided or combined.
For example, if we effect a two-for-one stock split with respect to the Class A
common stock, we will at the same time effect a two-for-one stock split with
respect to the Class B common stock.

Conversion. The shares of Class A common stock are not convertible into any
other series or class of securities. Each share of Class B common stock,
however, is freely convertible into one share of Class A common stock at the
option of the Class B stockholder. Except for transfers to certain family
members or trusts, partnerships, corporations or similar entities for the
benefit of family members, transfers for estate planning purposes or a pledge
of the shares as collateral for indebtedness, any attempt to transfer Class B
common stock will result in the automatic conversion of the shares into Class A
common shares. Upon Mr. Pedersen's death, all outstanding shares of Class B
common stock automatically convert to Class A common stock.

Mergers, Consolidation and Other Transactions. In the event that we enter
into any consolidation, merger, combination or other transaction in which
shares of common stock are exchanged for other capital stock, cash or property,
then the shares of each class of common stock will be exchanged for the same
amount of capital stock, cash or property, as the case may be, for which each
share of any other class of common stock is exchanged. Holders of each class of
common stock may receive different distributions of stock, securities, cash or
property if:

. Shares of common stock are exchanged for shares of capital stock, then
the shares exchanged may differ to the extent that the Class A common
stock and the Class B common stock differ;

. The holders of Class A common stock receive an amount of stock,
securities, cash or property per share having a value greater than or
equal to the value per share for which each share of any other class of
common stock is exchanged; or

. Holders of Class A common stock and holders of Class B common stock
receive an amount of stock, securities, cash or property per share in
accordance with a transaction approved by the holders of a majority of
Class A common stock and by the holders of a majority of Class B common
stock, each voting separately as a class.

Nasdaq. We expect the Class A common stock will be quoted on The Nasdaq
National Market under the symbol "MANT."

Preferred Stock

Subject to Delaware law, the board of directors, without further action by
the stockholders, is authorized to issue an aggregate of shares of
preferred stock. No shares of preferred stock are outstanding and the board of
directors currently has no plans to issue a series of preferred stock. The
board of directors may, without stockholder approval, issue preferred stock
with dividend rates, redemption prices, preferences on liquidation or
dissolution, conversion rights, voting rights and any other preferences, which
rights and preferences could adversely affect the voting power of the holders
of common stock. The issuance of preferred stock, while providing desirable
flexibility in connection with possible acquisitions or other corporate
purposes, could have the effects of making it more difficult for a third party
to acquire, or could discourage or delay a third party from acquiring, a
majority of our outstanding stock and of decreasing the amount of earnings or
assets available for distribution to the holders of common stock.

Corporate Governance Provisions of Our Certificate of Incorporation and Bylaws

Advance Notice. Our bylaws require that advance notice of all director
nominations or other business matters proposed to be brought before an annual
meeting of stockholders be delivered to our secretary at our corporate office
not later than 60 days nor more than 120 days prior to the first anniversary of
the date on which we first mailed our proxy materials for the prior year's
annual meeting of stockholders. This provision may make it more difficult for
stockholders to nominate or elect directors or take action opposed by our board.

Special Meetings. Our certificate of incorporation and bylaws provide that
special meetings of the stockholders may be called by our Secretary at the
direction of:

. the affirmative vote of a majority of the board of directors;

. the chairman of the board of directors;

. the chief executive officer; or

. the holders of shares representing a majority of the voting power of the
outstanding common stock entitled to vote at such meeting of stockholders.

No Stockholder Action by Written Consent. Our certificate of incorporation
provides that stockholders entitled to take action on any matter may act solely
at a meeting of stockholders duly called and held in accordance with law and
our certificate of incorporation and bylaws and may not act by a consent or
consents in writing. Accordingly, our stockholders will not be able to take
action by written consent in lieu of a meeting. This provision may have the
effect of deterring hostile takeovers or delaying changes in control or
management.

Indemnification of Directors and Officers. Our certificate of incorporation
and bylaws provide a right to indemnification to the fullest extent permitted
by law for expenses, attorney's fees, damages, punitive damages, judgments,
penalties, fines and amounts paid in settlement actually and reasonably
incurred by any person whether or not the indemnified liability arises or arose
from any threatened, pending or completed proceeding by or in ManTech's right
by reason of the fact that he or she is or was our director or officer or while
our director or officer, is or was serving at our request as a director,
officer, partner, venturer, proprietor, trustee, employee, agent, or similar
functionary of another foreign or domestic corporation, partnership, joint
venture, sole proprietorship, trust, employee benefit plan or other enterprise,
to the fullest extent permitted under the Delaware General Corporation Law. Our
certificate of incorporation and bylaws also provide for the advancement of
expenses to an indemnified party. Additionally, we may indemnify any employee
or agent of ours to the fullest extent permitted by law. Our bylaws authorize
us to take steps to ensure that all persons entitled to the indemnification are
properly indemnified, including, if the board of directors so determines,
purchasing and maintaining insurance.

Certain Provisions of Delaware Law

We are a Delaware corporation and are therefore subject to the provisions
of Section 203 of the Delaware General Corporation Law, an anti-takeover law.
In general, the statute prohibits a publicly held Delaware corporation from
engaging in a "business combination" with an "interested stockholder" for a
period of three years after the date of the transaction by which that person
became an interested stockholder, unless the business combination is approved
in a prescribed manner. For purposes of Section 203, a "business combination"
includes a merger, asset sale or other transaction

resulting in a financial benefit to the interested stockholder, and an
"interested stockholder" is a person who, together with affiliates and
associates, owns, or within three years prior did own, 15.0% or more of our
voting stock.

Limitations on Liability and Indemnification of Officers and Directors

Our certificate of incorporation provides that none of the directors shall
be personally liable to us or our stockholders for monetary damages for breach
of fiduciary duty as a director, except liability for:

. Any breach of the director's duty of loyalty to us or our stockholders;

. Acts or omissions not in good faith or which involve intentional
misconduct or a knowing violation of law;

. The payment of unlawful dividends and certain other actions prohibited by
Delaware General Corporation Law; and

. Any transaction from which the director derived any improper personal
benefits.

The effect of this provision of our certificate of incorporation is to
eliminate our rights and the rights of our stockholders to recover monetary
damages against a director for breach of the fiduciary duty of care as a
director, including breaches resulting from negligent or grossly negligent
behavior, except in the situations described above. This provision does not
limit or eliminate our rights or the rights of any stockholder to seek
non-monetary relief, such as an injunction or rescission in the event of a
breach of a director's duty of care.

TAX CONSIDERATIONS

This is a general summary of material U.S. federal income and estate tax
considerations with respect to your acquisition, ownership and disposition of
our common stock if you are a beneficial owner of shares other than:

. A citizen or resident of the United States;

. A corporation, partnership or other entity created or organized in, or
under the laws of, the United States or any political subdivision of the
United States;

. An estate, the income of which is subject to U.S. federal income taxation
regardless of its source;

. A trust, if a court within the United States is able to exercise primary
supervision over the administration of the trust and one or more U.S.
persons have the authority to control all substantial decisions of the
trust; or

. A trust that existed on August 20, 1996, was treated as a U.S. person on
August 19, 1996, and elected to be treated as a U.S. person.

This summary does not address all of the U.S. federal income and estate tax
considerations that may be relevant to you in light of your particular
circumstances or if you are a beneficial owner subject to special treatment
under United States income tax laws such as a:

. Controlled foreign corporation;

. Passive foreign investment company;

. Foreign personal holding company;

. Company that accumulates earnings to avoid U.S. federal income tax;

. Foreign tax-exempt organization;

. Financial institution;

. Broker or dealer in securities; or

. Former U.S. citizen or resident.

This summary does not discuss any aspect of state, local or non-United
States taxation. This summary is based on current provisions of the Internal
Revenue Code, Treasury regulations, judicial opinions, published positions of
the U.S. Internal Revenue Service and all other applicable authorities, all of
which are subject to change, possibly with retroactive effect. This summary is
not intended as tax advice.

We urge prospective non-United States stockholders to consult their tax
advisors regarding the United States federal, state, local and non-United
States income and other tax considerations of acquiring, holding and disposing
of shares of our common stock.

Dividends

In general, any distributions we make to you with respect to your shares of
our common stock that constitute dividends for U.S. federal income tax purposes
will be subject to U.S. withholding tax at a rate of 30.0% of the gross amount,
unless you are eligible for a reduced rate of withholding tax under an
applicable income tax treaty and you provide proper certification of your
eligibility for such reduced rate (usually on an IRS Form W-8BEN). A
distribution will constitute a dividend for U.S. federal income tax purposes to
the extent of our current or accumulated earnings and profits as determined
under the Internal Revenue Code. Any distribution not constituting a dividend
will be treated first as reducing your basis in your shares of our common stock
and, to the extent it exceeds your basis, as gain from the disposition of your
shares of our common stock.

Dividends we pay to you that are effectively connected with your conduct of
a trade or business within the United States and, if certain income tax
treaties apply, are attributable to a U.S. permanent establishment maintained
by you, generally will not be subject to U.S. withholding tax if you comply
with applicable certification and disclosure requirements. Instead, such
dividends generally will be subject to U.S. federal income tax, net of certain
deductions, at the same rates applicable to U.S. persons. If you are a
corporation, effectively connected income may also be subject to a "branch
profits tax" at a rate of 30.0%, or a lower rate specified by an applicable
income tax treaty. Dividends that are effectively connected with your conduct
of a trade or business but that under an applicable income tax treaty are not
attributable to a U.S. permanent establishment maintained by you may be
eligible for a reduced rate of U.S. withholding tax under such treaty, provided
you comply with certification and disclosure requirements necessary to obtain
treaty benefits.

Sale or Other Disposition of Our Common Stock

You generally will not be subject to U.S. federal income tax on any gain
realized upon the sale or other disposition of your shares of our common stock
unless:

. The gain is effectively connected with your conduct of a trade or
business within the United States and, under certain income tax treaties,
is attributable to a U.S. permanent establishment you maintain;

. You are an individual, you hold your shares of our common stock as
capital assets, you are present in the United States for 183 days or more
in the taxable year of disposition and you meet other conditions, and you
are not eligible for relief under an applicable income tax treaty; or

. We are or have been a "United States real property holding corporation"
for U.S. federal income tax purposes (which we believe we are not and
have never been, and do not anticipate we will become) and you hold or
have held, directly or indirectly, at any time within the shorter of the
five-year period preceding disposition or your holding period for your
shares of our common stock, more than 5.0% of our Class A common stock.

Gain that is effectively connected with your conduct of a trade or business
within the United States generally will be subject to U.S. federal income tax,
net of certain deductions, at the same rates applicable to U.S. persons. If you
are a corporation, the branch profits tax, as discussed above, also may apply
to such effectively connected gain. If the gain from the sale or disposition of
your shares is effectively connected with your conduct of a trade or business
in the United States but under an applicable income tax treaty is not
attributable to a permanent establishment you maintain in the

United States, your gain may be exempt from U.S. tax under the treaty. If you
are described in the second bullet point above, you generally will be subject
to U.S. tax at a rate of 30.0% on the gain realized, although the gain may be
offset by some U.S. source capital losses realized during the same taxable year.

Information Reporting and Backup Withholding

We must report annually to the IRS the amount of dividends or other
distributions we pay to you on your shares of our common stock and the amount
of tax we withhold on these distributions regardless of whether withholding is
required. The IRS may make copies of the information returns reporting those
dividends and amounts withheld available to the tax authorities in the country
in which you reside pursuant to the provisions of an applicable income tax
treaty or exchange of information treaty.

The United States imposes a backup withholding tax on dividends and certain
other types of payments to U.S. persons at a rate of 30.5% (with scheduled
reductions through 2006 and a scheduled increase to 31.0% in 2011) of the gross
amount. You will not be subject to backup withholding tax on dividends you
receive on your shares of our common stock if you provide proper certification
(usually on an IRS Form W-8BEN) of your status as a non-U.S. person or you are
a corporation or one of several types of entities and organizations that
qualify for exemption.

Information reporting and backup withholding generally are not required
with respect to the amount of any proceeds from the sale of your shares of our
common stock outside the United States through a foreign office of a foreign
broker that does not have certain specified connections to the United States.
However, if you sell your shares of our common stock through a U.S. broker or
the United States office of a foreign broker, the broker will be required to
report to the IRS the amount of proceeds paid to you and also backup withhold
at a rate of 30.5% (with scheduled reductions through 2006 and a scheduled
increase to 31.0% in 2011) of that amount unless you provide appropriate
certification (usually on an IRS Form W-8BEN) to the broker of your status as a
non-U.S. person or you are a corporation or one of several types of entities
and organizations that qualify for exemption. Information reporting and backup
withholding, if the appropriate certification is not provided, also apply if
you sell your shares of our common stock through a foreign broker deriving more
than a specified percentage of its income from U.S. sources or having certain
other connections to the United States.

Any amounts withheld with respect to your shares of our common stock under
the backup withholding rules will be refunded to you or credited against your
U.S. federal income tax liability, if any, by the IRS if the required
information is furnished in a timely manner.

Estate Tax

Shares of our common stock owned or treated as owned by an individual who
is not a citizen or resident, as defined for U.S. federal tax purposes, of the
United States at the time of his or her death will be subject to U.S. federal
estate tax unless an applicable estate tax treaty provides otherwise.

UNDERWRITING

Subject to the terms and conditions stated in the underwriting agreement
between us, the selling stockholder and the underwriters, each of the
underwriters named below has severally agreed to purchase, and we and the
selling stockholder have agreed to sell to each named underwriter, the number
of shares set forth opposite the name of each underwriter.

Underwriters Number of Shares

Jefferies & Company, Inc............
Legg Mason Wood Walker, Incorporated
BB&T Capital Markets................
Total...............................

The underwriting agreement provides that the obligations of the several
underwriters to purchase the shares offered by us and the selling stockholder
are subject to some conditions. The underwriters are obligated to purchase all
of the shares offered by us and the selling stockholder, other than those
covered by the over-allotment option described below, if any of the shares are
purchased. The underwriting agreement also provides that, in the event of a
default by an underwriter, in some circumstances the purchase commitments of
non-defaulting underwriters may be increased or the underwriting agreement may
be terminated.

Prior to this offering, there has been no public market for the Class A
common stock. The initial offering price will be negotiated among us and the
representatives for the underwriters. Among the factors to be considered in
determining the initial public offering price of the Class A common stock
shares, in addition to prevailing market conditions, will be our historical
performance, estimates of our business potential and earnings prospects, an
assessment of our management and consideration of the above factors in relation
to market valuations of companies in related businesses. There can be no
assurance, however, that the prices at which the Class A common stock shares
will sell in the public market after this offering will not be lower than the
price at which they are sold by the underwriters or that an active trading
market in the shares will develop and continue after this offering.

The underwriters propose to offer the shares to the public initially at the
public offering price set forth on the cover of this prospectus, and to some
dealers at that price less a concession not in excess of $ per share. The
underwriters may allow, and those dealers may reallow, a discount not in excess
of $ per share to other dealers. After this offering, the public offering
price, the concession to selected dealers and the reallowance to other dealers
may be changed by the underwriters.

We and the selling stockholder have granted to the underwriters an option,
exercisable not later than 30 days after the date of this prospectus, to
purchase, in whole or in part, up to additional shares at the public
offering price less the underwriting discount set forth on the cover of this
prospectus.

The underwriters may exercise that option only to cover over-allotments, if
any, made in connection with the sale of the shares offered by us and the
selling stockholder. To the extent that option is exercised, each underwriter
will be obligated, subject to some conditions, to purchase a number of
additional shares approximately proportionate to that underwriter's initial
purchase commitment as indicated in the table above.

The following table shows the per share and total underwriting discounts
and commissions to be paid to the underwriters by us and the selling
stockholder. Such amounts are shown assuming both no exercise and full exercise
of the underwriters' option to purchase additional shares.

Paid By Us Paid By The Selling Stockholder
------------------------------- -------------------------------
Without With Without With
Exercise of Full Exercise of Exercise of Full Exercise of
Over-allotment Over-allotment Over-allotment Over-allotment
-------------- ---------------- -------------- ----------------

Per share $ $ $ $
Total.... $ $ $ $

We estimate that the total expenses of this offering, excluding the
underwriting discounts and commissions, will be approximately $ . These
expenses will be paid by us and the selling stockholder in proportion to the
number of shares sold by each of us and the selling stockholder.

This offering of the shares is made for delivery when, as and if accepted
by the underwriters and subject to prior sale and to withdrawal, cancellation
or modification of this offering without notice. The underwriters reserve the
right to reject an order for the purchase of shares in whole or in part.

We have agreed to indemnify the underwriters against certain liabilities,
including liabilities under the Securities Act, and to contribute to payments
the underwriters may be required to make in respect of these liabilities.

We have applied to have the Class A common stock approved for qualification
on The Nasdaq National Market under the symbol "MANT."

We, our existing stockholders, our executive officers and the directors who
hold or are entitled to receive shares of common stock under our stock option
plans, have agreed not to offer, sell, contract to sell, grant any option to
purchase, announce any intention to sell, transfer the economic risk of
ownership in, make any short sale, pledge or otherwise dispose of, directly or
indirectly, or file a registration statement under the Securities Act relating
to, any shares of our common stock or securities or other rights convertible
into or exchangeable or exercisable for any shares of our common stock or
securities or other rights convertible into or exchangeable or exercisable for
any shares of our common stock without the prior written consent of the
underwriters for a period of 180 days after the date of this prospectus. Upon
the expiration of this 180-day lock-up period, substantially all of these
shares will become eligible for sale, subject to the restrictions of Rule 144.
These restrictions will not affect our ability to:

. Issue and sell shares of our common stock or make any awards pursuant to
our stock option plans;

. Issue shares of our common stock pursuant to the exercise of stock
options currently outstanding or granted pursuant to our stock option
plans; or

We have been advised by the representatives that, in accordance with
Regulation M under the Securities Act, some persons participating in this
offering may engage in transactions, including syndicate covering transactions,
stabilizing bids or the imposition of penalty bids, that may have the effect of
stabilizing or maintaining the market price of the shares at a level above that
which might otherwise prevail in the open market.

A "syndicate covering transaction" is a bid for or the purchase of shares
on behalf of the underwriters to reduce a syndicate short position incurred by
the underwriters in connection with this offering. The underwriters may create
a syndicate short position by making short sales of our shares and may purchase
our shares in the open market to cover syndicate short positions created by
short sales. Short sales involve the sale by the underwriters of a greater
number of shares than they are required to purchase in this offering. Short
sales can be either "covered" or "naked." "Covered" short sales are sales made
in an amount not greater than the underwriters' over-allotment option to
purchase additional shares from us and the selling stockholder in this
offering. "Naked" short sales are sales in excess of the over-allotment option.
A naked short position is more likely to be created if the underwriters are
concerned that there may be downward pressure on the price of the shares in the
open market after pricing that could adversely affect investors who purchase in
this offering. If the underwriters create a syndicate short position, they may
choose to reduce or "cover" this position by either exercising all or part of
the over- allotment option to purchase additional shares from us and the
selling stockholder or by engaging in "syndicate covering transactions." The
underwriters may close out any covered short position by either exercising
their over-allotment option or purchasing shares in the open market. The
underwriters must close out any naked short position by purchasing shares in
the open market. In determining the source of shares to close out the covered
short position, the underwriters will consider, among other things, the price
of shares available for purchase in the open market as compared to the price at
which they may purchase shares through the over-allotment option.

A "stabilizing bid" is a bid for or the purchase of shares on behalf of the
underwriters for the purpose of fixing or maintaining the price of our Class A
common stock. A "penalty bid" is an arrangement that permits the
representatives to reclaim the selling concession from an underwriter or a
syndicate member when shares sold by such underwriter or syndicate members are
purchased by the representatives in a syndicate covering transaction and,
therefore, have not been effectively placed by the underwriter or syndicate
member.

We have been advised by the representatives that these transactions may be
effected on The Nasdaq National Market or otherwise and, if commenced, may be
discontinued at any time. Similar to other purchase activities, these
activities may have the effect of raising or maintaining the market price of
our common stock or preventing or retarding a decline in the market price of
our common stock. As a result, the price of our common stock may be higher than
the price that might otherwise exist in the open market.

Both Jefferies & Company, Inc. and Quarterdeck Investment Partners, LLC,
which is affiliated with Jefferies & Company, Inc. (which we refer to
collectively as our financial advisors), have provided and in the future may
provide investment banking and other financial advisory services to us for
which we have paid and expect to pay customary fees and expenses. In connection
with our engagement of these financial advisors, we have granted to them a
right of first refusal to act as managers or co-managers of a subsequent
offering of securities by us.

Quarterdeck Investment Partners, LLC has provided financial advisory
services to us with respect to this offering. In consideration for such
services, Quarterdeck Investment Partners, LLC will be paid a fee. This fee is
included in the table set forth above detailing the underwriters' compensation
on a total and per share basis. Quarterdeck Investment Partners, LLC does not
have any material relationship with us or any of our officers, directors or
other controlling persons, except its contractual relationship with us relating
to the investment banking and financial advisory services provided to us which
are described above.

Branch Banking and Trust Company of Virginia, an affiliate of BB&T Capital
Markets, is a member of a syndicate of banking institutions that has advanced
two loans, with an outstanding balance of $ million as of , to us. In
connection with our application of the net proceeds of this offering, as
described under "Use of Proceeds" above, less than 10% of such proceeds to us
will be used to repay indebtedness to affiliates of the underwriters.

VALIDITY OF COMMON STOCK

The validity of the shares of Class A common stock offered by us in this
offering and the shares of Class A common stock offered by the selling
stockholder will be passed upon for us and the selling stockholder by Gibson,
Dunn & Crutcher LLP, Washington, D.C. Certain legal matters relating to this
offering will be passed upon for the underwriters by Morgan Lewis & Bockius
LLP, New York, New York.

EXPERTS

The consolidated financial statements as of December 31, 1999 and 2000 and
September 30, 2001 and for the years ended December 31, 1999 and 2000, and the
nine months ended September 30, 2001, included in this prospectus and the
related financial statement schedule included elsewhere in this registration
statement have been audited by Deloitte & Touche LLP, independent auditors, as
stated in their reports appearing herein and elsewhere in the registration
statement, and have been so included in reliance upon the reports of such firm
given upon their authority as experts in accounting and auditing.

The consolidated financial statements for the year ended December 31, 1998
included in this prospectus have been so included in reliance on the report of
PricewaterhouseCoopers LLP, independent accountants, given on the authority of
said firm as experts in auditing and accounting. We have also included our
financial statement schedule for the same period in the registration statement
along with PricewaterhouseCoopers LLP report on the schedule.

Change in Independent Auditors

In July 1999, we determined to change our independent auditors from
PricewaterhouseCoopers LLP, to Deloitte & Touche LLP. In connection with
PricewaterhouseCoopers LLP's audits of our financial statements for the years
ended December 31, 1997 and 1998 and through July 1999, there were no
disagreements with PricewaterhouseCoopers LLP on any matter of accounting
principles or practices, financial statement disclosure, or auditing scope or
procedure, nor any reportable events. The reports of PricewaterhouseCoopers LLP
on the financial statements for the years ended December 31, 1997 and 1998
contained no adverse opinion or disclaimer of opinion and were not qualified or
modified as to uncertainty, audit scope or accounting principle. The decision
to change auditors was approved by our board of directors. We have provided
PricewaterhouseCoopers LLP with a copy of the disclosure contained in this
section of this prospectus.

We have requested that PricewaterhouseCoopers LLP furnish us with a letter
addressed to the Commission stating whether or not it agrees with the above
statements. A copy of such letter, dated December 31, 2001, is filed as Exhibit
16.1 to our registration statement on Form S-1.

WHERE YOU CAN FIND MORE INFORMATION

We have filed with the Securities and Exchange Commission a registration
statement on Form S-1, including exhibits and schedules, under the Securities
Act with respect to the Class A common stock to be sold in this offering. This
prospectus, which constitutes a part of the registration statement, does not
contain all of the information set forth in the registration statement or the
exhibits and schedules that are part of the registration statement. Any
statements made in this prospectus as to the contents of any contract,
agreement or other document are not necessarily complete. With respect to each
such contract, agreement or other document filed as an exhibit to the
registration statement, we refer you to the exhibit for a more complete
description of the matter involved, and each statement in this prospectus shall
be deemed qualified in its entirety by this reference. You may read and copy
all or any portion of the registration statement or any reports, statements or
other information in the files at the following public reference facilities of
the Securities and Exchange Commission:

Washington, D.C.
Room 1024
450 Fifth Street, N.W.
Washington, D.C. 20549

You can request copies of these documents upon payment of a duplicating fee
by writing to the Securities and Exchange Commission. You may call the
Securities and Exchange Commission at 1-800-SEC-0330 for further information on
the operation of its public reference rooms. Our filings, including the
registration statement, will also be available to you on the Internet web site
maintained by the Securities and Exchange Commission at www.sec.gov.

We intend to furnish our stockholders with annual reports containing
financial statements audited by our independent auditors, and make available to
our stockholders quarterly reports for the first three quarters of each year
containing unaudited interim financial statements.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Page
- - ----

Independent Auditors' Report....................................................................... F-2

Report of Independent Accountants.................................................................. F-3

Consolidated Balance Sheets as of December 31, 1999 and 2000 and September 30, 2001................ F-4

Consolidated Statements of Income for the years ended December 31, 1998, 1999 and 2000 and the nine
months ended September 30, 2000 (unaudited) and 2001............................................. F-6

Consolidated Statements of Changes in Stockholders' Equity for the years ended December 31, 1998,
1999 and 2000 and the nine months ended September 30, 2001....................................... F-7

Consolidated Statements of Cash Flows for the years ended December 31, 1998, 1999 and 2000 and for
the nine months ended September 30, 2000 (unaudited) and 2001.................................... F-8

Notes to Consolidated Financial Statements......................................................... F-10

F-1

INDEPENDENT AUDITORS' REPORT

To the Board of Directors and Stockholders of
ManTech International Corporation
Fairfax, Virginia:

We have audited the accompanying consolidated balance sheets of ManTech
International Corporation and subsidiaries (the Company) as of December 31,
1999 and 2000 and September 30, 2001, and the related consolidated statements
of income, stockholders' equity, and cash flows for the years ended December
31, 1999 and 2000 and the nine months ended September 30, 2001. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.

We conducted our audits in accordance with auditing standards generally
accepted in the United States of America. Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the
financial statements are free of material misstatement. An audit includes
examining, on a test basis, evidence supporting the amounts and disclosures in
the financial statements. An audit also includes assessing the accounting
principles used and significant estimates made by management, as well as
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in
all material respects, the financial position of ManTech International
Corporation and subsidiaries at December 31, 1999 and 2000 and September 30,
2001, and the results of their operations and their cash flows for the years
ended December 31, 1999 and 2000 and the nine months ended September 30, 2001
in conformity with accounting principles generally accepted in the United
States of America.

As discussed in Note 8, effective January 1, 2001, the Company adopted
Statement of Financial Accounting Standards No. 133, Accounting for Derivative
Instruments and Hedging Activities, as amended.

DELOITTE & TOUCHE LLP

McLean, Virginia

November 16, 2001, except for Note 8

as to which the date is December 17, 2001

F-2

REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and Stockholders of
MANTECH INTERNATIONAL CORPORATION:

In our opinion, the accompanying consolidated statement of income, of changes
in stockholders' equity and of cash flows present fairly, in all material
respects, the results of operations and cash flows of ManTech International
Corporation (the Company) for the year ended December 31, 1998, in conformity
with accounting principles generally accepted in the United States of America.
These financial statements are the responsibility of the Company's management;
our responsibility is to express an opinion on these financial statements based
on our audit. We conducted our audit of these statements in accordance with
auditing standards generally accepted in the United States of America, which
require that we plan and perform the audit to obtain reasonable assurance about
whether the financial statements are free of material misstatement. An audit
includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements, assessing the accounting principles
used and significant estimates made by management, and evaluating the overall
financial statement presentation. We believe that our audit provides a
reasonable basis for our opinion.

PricewaterhouseCoopers LLP

McLean, Virginia
April 26, 1999, except for Note 16,
as to which the date is June 7, 1999 and
Note 15, as to which the date
is November 15, 2001

F-3

MANTECH INTERNATIONAL CORPORATION
CONSOLIDATED BALANCE SHEETS
(Dollars in Thousands)
December 31, September 30,
----------------- -------------
1999 2000 2001
-------- -------- -------------

ASSETS

CURRENT ASSETS:
Cash and cash equivalents............... $ 19,571 $ 29,578 $ 18,231
Receivables--net........................ 88,482 83,481 90,849
Inventory............................... 756 -- --
Prepaid expenses and other.............. 5,757 11,893 6,808
Assets held for sale.................... 34,770 26,521 22,387
-------- -------- --------
Total current assets.................. 149,336 151,473 138,275

Property and equipment--net.............. 8,803 7,033 6,746
Goodwill and other intangibles........... 14,598 12,347 11,226
Investments.............................. 4,614 3,810 4,366
Employee supplemental savings plan assets 6,045 6,898 7,003
Other assets............................. 2,674 5,282 9,445
-------- -------- --------
TOTAL ASSETS............................. $186,070 $186,843 $177,061
======== ======== ========

F-4

MANTECH INTERNATIONAL CORPORATION
CONSOLIDATED BALANCE SHEETS
(Dollars in Thousands)

December 31, September 30,
------------------ -------------
1999 2000 2001
-------- -------- -------------

LIABILITIES AND STOCKHOLDERS' EQUITY

CURRENT LIABILITIES:
Current portion of debt.............................................. $ 4,501 $ 4,200 $ 2,769
Accounts payable and accrued expenses................................ 21,781 19,923 21,870
Accrued salaries and related expenses................................ 13,502 15,349 18,211
Deferred income taxes................................................ 15,882 16,722 15,697
Billings in excess of revenue earned................................. 3,243 7,939 4,393
Liabilities held for sale............................................ 23,643 15,458 13,319
-------- -------- --------
Total current liabilities.......................................... 82,552 79,591 76,259

Debt--net of current portion.......................................... 72,005 73,000 66,668
Deferred rent......................................................... 513 441 597
Accrued retirement.................................................... 7,548 8,382 8,480
Deferred income taxes................................................. 2,347 2,139 2,140
Minority interest..................................................... 95 34 53
-------- -------- --------
TOTAL LIABILITIES..................................................... 165,060 163,587 154,197
-------- -------- --------

COMMITMENTS AND CONTINGENCIES

REDEEMABLE CLASS B COMMON STOCK....................................... 1,462 1,462 1,462

STOCKHOLDERS' EQUITY:
Common stock, Class A--no par value; 25,000,000 shares authorized;
4,111,502 shares issued; 1,022,882, 1,033,938 and 1,040,566 shares
outstanding at December 31, 1999 and 2000, and September 30, 2001,
respectively....................................................... 1,179 1,179 1,179
Common stock, Class C--no par value; 100,000 shares authorized;
71,664 shares issued and outstanding............................... 21 21 21
Additional paid in capital........................................... -- 1,326 2,468
Retained earnings.................................................... 31,770 33,509 33,246
Accumulated other comprehensive loss................................. (159) (240) (1,540)
Deferred compensation................................................ 640 640 640
Treasury stock--at cost; 3,088,620, 3,077,564 and 3,070,936 shares of
Class A; and 39,156, 47,738 and 47,738 shares of Class B at
December 31, 1999 and 2000, and September 30, 2001, respectively... (13,903) (14,641) (14,612)
-------- -------- --------
Total stockholders' equity......................................... 19,548 21,794 21,402
-------- -------- --------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY............................ $186,070 $186,843 $177,061
======== ======== ========

See notes to consolidated financial statements.

F-5

MANTECH INTERNATIONAL CORPORATION
CONSOLIDATED STATEMENTS OF INCOME
(Dollars in Thousands Except Per Share Amounts)

Nine Months Ended
Year Ended December 31, September 30,
---------------------------------- ----------------------
1998 1999 2000 2000 2001
---------- ---------- ---------- ----------- ----------
(Unaudited)

REVENUES........................................ $ 314,309 $ 353,924 $ 378,827 $ 280,970 $ 316,266
COST OF SERVICES................................ 265,189 296,306 315,414 234,834 258,412
---------- ---------- ---------- ---------- ----------
GROSS PROFIT.................................. 49,120 57,618 63,413 46,136 57,854
---------- ---------- ---------- ---------- ----------
COSTS AND EXPENSES:
General and administrative.................... 33,389 39,175 41,545 30,993 33,166
Depreciation and amortization................. 2,284 3,275 3,279 2,448 2,451
---------- ---------- ---------- ---------- ----------
Total costs and expenses.................... 35,673 42,450 44,824 33,441 35,617
---------- ---------- ---------- ---------- ----------
INCOME FROM OPERATIONS.......................... 13,447 15,168 18,589 12,695 22,237

Interest expense................................ 4,020 4,122 4,438 3,316 2,383
Loss from investment default.................... 5,230 -- -- -- --
Equity in (earnings) losses of affiliates....... (911) (810) 1,162 (53) (869)
Other income.................................... (29) (443) (123) (20) (517)
---------- ---------- ---------- ---------- ----------
INCOME BEFORE PROVISION FOR INCOME
TAXES AND MINORITY INTEREST.................... 5,137 12,299 13,112 9,452 21,240
Provision for income taxes...................... (2,183) (5,466) (5,974) (4,327) (9,062)
Minority interest............................... (33) (37) (13) (12) (18)
---------- ---------- ---------- ---------- ----------
INCOME FROM CONTINUING OPERATIONS............... 2,921 6,796 7,125 5,113 12,160
Loss from discontinued operations--net.......... (1,268) (2,727) (4,667) (3,124) (6,533)
Loss on disposal of discontinued operations--net -- -- (719) (719) (5,890)
---------- ---------- ---------- ---------- ----------
NET INCOME (LOSS)............................... $ 1,653 $ 4,069 $ 1,739 $ 1,270 $ (263)
========== ========== ========== ========== ==========
INCOME FROM CONTINUING OPERATIONS
AVAILABLE TO COMMON STOCKHOLDERS............... $ 2,838 $ 6,796 $ 7,125 $ 5,113 $ 12,160
========== ========== ========== ========== ==========
BASIC EARNINGS (LOSS) PER SHARE:
Income from continuing operations............. $ 2.46 $ 5.98 $ 6.29 $ 4.53 $ 10.68
Loss from discontinued operations............. (1.10) (2.40) (4.76) (3.40) (10.91)
---------- ---------- ---------- ---------- ----------
$ 1.36 $ 3.58 $ 1.53 $ 1.13 $ (0.23)
---------- ---------- ---------- ---------- ----------
Weighted average common shares outstanding...... 1,152,790 1,135,659 1,132,140 1,129,831 1,138,449
========== ========== ========== ========== ==========
DILUTED EARNINGS (LOSS) PER SHARE:
Income from continuing operations............. $ 2.43 $ 5.93 $ 6.24 $ 4.49 $ 10.59
Loss from discontinued operations............. (1.09) (2.38) (4.72) (3.37) (10.82)
---------- ---------- ---------- ---------- ----------
$ 1.34 $ 3.55 $ 1.52 $ 1.12 $ (0.23)
---------- ---------- ---------- ---------- ----------
Weighted average common shares outstanding...... 1,168,289 1,145,448 1,141,929 1,139,620 1,148,238
========== ========== ========== ========== ==========

See notes to consolidated financial statements.

F-6

MANTECH INTERNATIONAL CORPORATION
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
(Dollars in Thousands)

Accumulated Other
Common Additional Comprehensive Retained Comprehensive Deferred
Stock Paid In Capital Income (Loss) Earnings Income (Loss) Compensation
------ --------------- ------------- -------- ----------------- ------------

BALANCE, JANUARY 1, 1998........................... $1,200 $ -- $26,131 $ (163) $ --
Net income....................................... $ 1,653 1,653
-------
Other comprehensive income (loss):...............
Net unrealized holding gain--net of income tax
provision of $70............................... 110
Translation adjustments......................... (70)
-------
Other comprehensive income....................... 40 40
-------
Comprehensive income............................. $ 1,693
=======
Dividends on redeemable common stock............. (83)
Redemption of Class B common stock...............
Common stock held in rabbi trust................. 640
------ ------ ------- ------- ----
BALANCE, DECEMBER 31, 1998......................... 1,200 -- 27,701 (123) 640
Net income....................................... $ 4,069 4,069
-------
Other comprehensive loss:........................
Translation adjustments......................... (36)
-------
Other comprehensive loss......................... (36) (36)
-------
Comprehensive income............................. $ 4,033
------ ------ ======= ------- ------- ----
BALANCE, DECEMBER 31, 1999......................... 1,200 -- 31,770 (159) 640
Net income....................................... $ 1,739 1,739
-------
Other comprehensive loss:........................
Translation adjustments......................... (81)
-------
Other comprehensive loss......................... (81) (81)
-------
Comprehensive income............................. $ 1,658
=======
Contribution of Class A common stock to Employee
Stock Ownership Plan............................ 1,326
Redemption of Class B common stock...............
------ ------ ------- ------- ----
BALANCE, DECEMBER 31, 2000......................... 1,200 1,326 33,509 (240) 640
Net loss......................................... $ (263) (263)
-------
Other comprehensive loss:........................
Cash flow hedge................................. (1,251)
Translation adjustments......................... (49)
-------
Other comprehensive loss......................... (1,300) (1,300)
-------
Comprehensive loss............................... $(1,563)
=======
Contribution of Class A common stock to Employee
Stock Ownership Plan............................ 1,142
------ ------ ------- ------- ----
BALANCE, SEPTEMBER 30, 2001........................ $1,200 $2,468 $33,246 $(1,540) $640
====== ====== ======= ======= ====

Treasury Total Stockholders'
Stock Equity
-------- -------------------

BALANCE, JANUARY 1, 1998........................... $(10,337) $16,831
Net income....................................... 1,653

Other comprehensive income (loss):...............
Net unrealized holding gain--net of income tax
provision of $70...............................
Translation adjustments.........................

Other comprehensive income....................... 40

Comprehensive income.............................

Dividends on redeemable common stock............. (83)
Redemption of Class B common stock............... (2,926) (2,926)
Common stock held in rabbi trust................. (640) --
-------- -------
BALANCE, DECEMBER 31, 1998......................... (13,903) 15,515
Net income....................................... 4,069

Other comprehensive loss:........................
Translation adjustments.........................

Other comprehensive loss......................... (36)

Comprehensive income.............................
-------- -------
BALANCE, DECEMBER 31, 1999......................... (13,903) 19,548
Net income....................................... 1,739

Other comprehensive loss:........................
Translation adjustments.........................

Other comprehensive loss......................... (81)

Comprehensive income.............................

Contribution of Class A common stock to Employee
Stock Ownership Plan............................ 37 1,363
Redemption of Class B common stock............... (775) (775)
-------- -------
BALANCE, DECEMBER 31, 2000......................... (14,641) 21,794
Net loss......................................... (263)

Other comprehensive loss:........................
Cash flow hedge.................................
Translation adjustments.........................

Other comprehensive loss......................... (1,300)

Comprehensive loss...............................

Contribution of Class A common stock to Employee
Stock Ownership Plan............................ 29 1,171
-------- -------
BALANCE, SEPTEMBER 30, 2001........................ $(14,612) $21,402
======== =======

See notes to consolidated financial statements.

F-7

MANTECH INTERNATIONAL CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Dollars in Thousands)

Nine Months Ended
Year Ended December 31, September 30,
------------------------- -------------------
1998 1999 2000 2000 2001
------- ------- ------- ----------- -------
(Unaudited)

CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss).......................................... $ 1,653 $ 4,069 $ 1,739 $ 1,270 $ (263)
Adjustments to reconcile net income to net cash
provided by (used in) operating activities:
Equity in (earnings) losses of affiliates................ (911) (810) 1,162 (53) (869)
Loss from discontinued operations........................ 1,268 2,727 4,667 3,124 6,533
Loss on disposal of discontinued operations.............. -- -- 719 719 5,890
Deferred income taxes.................................... (196) (338) 981 451 (134)
Minority interest in income of consolidated
subsidiaries........................................... 33 37 15 11 19
Loss from investment default............................. 5,230 -- -- -- --
Loss (gain) on disposal of property and equipment........ 6 (183) 142 289 88
Depreciation and amortization............................ 4,379 5,635 5,548 4,173 3,868
Change in assets and liabilities--net of effects from
acquired and disposed businesses:
(Increase) decrease in receivables..................... (3,133) (9,965) 5,010 (5,885) (7,389)
(Increase) decrease in prepaid expenses and
other................................................ (160) 2,637 (8,180) (6,246) 4,157
(Increase) decrease in inventory....................... (263) 171 755 755 --
(Decrease) increase in accounts payable and
accrued expenses..................................... (740) 5,144 (1,377) (4,734) (54)
(Decrease) increase in accrued salaries and related
expenses............................................. (503) 10 3,211 5,601 3,953
(Decrease) increase in billings in excess of revenue
earned............................................... (1,418) (1,380) 4,699 516 (3,537)
(Decrease) increase in deferred rent................... (44) 51 (73) (17) 157
Increase in accrued retirement......................... 2,708 1,582 834 1,228 97
------- ------- ------- ------- -------
Net cash provided by operating activities of
continuing operations.............................. 7,909 9,387 19,852 1,202 12,516
------- ------- ------- ------- -------
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment......................... (3,538) (2,181) (1,344) (964) (1,616)
Proceeds from sales of property and equipment.............. 113 1,168 225 222 --
Proceeds from notes receivable............................. 207 -- -- -- --
Loans receivable from GSE.................................. -- -- (1,550) -- (3,350)
Investment in GSE Common Stock............................. -- -- (500) (500) --
Investment in capitalized software products................ (1,787) (900) (316) (233) (933)
Investment in ADG, net of cash acquired of $4,429.......... -- (19) (496) (372) --
Investment in REVIVE....................................... -- (677) -- -- --
(Investment in) dividends from MASI U.K.................... -- -- (216) (216) 285
------- ------- ------- ------- -------
Net cash used in investing activities of
continuing operations.............................. (5,005) (2,609) (4,197) (2,063) (5,614)
------- ------- ------- ------- -------

F-8

MANTECH INTERNATIONAL CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Dollars in Thousands)

Nine Months Ended
Year Ended December 31, September 30,
------------------------- --------------------
1998 1999 2000 2000 2001
------- ------- ------- ----------- --------
(Unaudited)

CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase (decrease) in borrowings under lines
of credit...................................... 5,717 7,900 4,413 (269) (4,344)
Repayment of term loan........................... (800) (3,200) (2,400) (1,600) (2,400)
Repayment of notes payable....................... (375) (1,204) (276) (276) (1,000)
Repayment of mortgage............................ (75) (1,163) -- -- --
Payment of not-to-compete financings............. (443) (337) (1,000) (1,000) --
Repurchase of Class B common stock............... (2,926) -- (775) (652) --
Redemption of preferred stock.................... (8,029) -- -- -- --
Proceeds from subordinated debt.................. 8,000 -- -- -- --
Proceeds from exercise of stock options.......... 269 -- -- -- --
Dividends paid................................... (83) -- -- -- --
------- ------- ------- ------- --------
Net cash provided by (used in)
financing activities of continuing
operations............................... 1,255 1,996 (38) (3,797) (7,744)
------- ------- ------- ------- --------

EFFECT OF EXCHANGE RATE CHANGES ON
CASH AND CASH EQUIVALENTS....................... 5 (39) 167 (98) 3
------- ------- ------- ------- --------

NET CASH USED IN DISCONTINUED
OPERATIONS...................................... (6,910) (3,736) (5,777) (3,449) (10,508)
------- ------- ------- ------- --------

NET (DECREASE) INCREASE IN CASH AND
CASH EQUIVALENTS................................ (2,746) 4,999 10,007 (8,205) (11,347)

CASH AND CASH EQUIVALENTS, BEGINNING
OF PERIOD....................................... 17,318 14,572 19,571 19,571 29,578
------- ------- ------- ------- --------

CASH AND CASH EQUIVALENTS, END OF
PERIOD.......................................... $14,572 $19,571 $29,578 $11,366 $ 18,231
======= ======= ======= ======= ========

See notes to consolidated financial statements

F-9

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

1. Description of the Business

2. Summary of Significant Accounting Policies

Principles of Consolidation--The accompanying consolidated financial
statements include the accounts of ManTech International Corporation and its
majority-owned subsidiaries (the Company). Minority interest represents
minority stockholders' proportionate share of the equity in one of the
Company's consolidated subsidiaries. The Company's share of affiliates'
earnings (losses) is included in the consolidated statements of income using
the equity method (see note 12). All intercompany accounts and transactions
have been eliminated.

Use of Accounting Estimates--The preparation of financial statements in
conformity with accounting principles generally accepted in the United States
of America requires management to make estimates and assumptions that affect
the reported amounts of assets and liabilities and disclosure of contingent
assets and liabilities at the date of the financial statements and the reported
amounts of revenues and expenses during the reporting period. These estimates
involve judgments with respect to, among other things, various future economic
factors that are difficult to predict and are beyond the control of the
Company. Therefore, actual amounts could differ from these estimates.

Revenue Recognition--The majority of the Company's revenues are derived
from cost-plus-fixed-fee, cost-plus-award-fee, firm-fixed-price, or
time-and-materials contracts. Under cost-plus-fixed or award-fee contracts,
revenues are recognized as costs are incurred and include an estimate of
applicable fees earned. Under firm-fixed-price contracts, revenues are
estimated on the percentage of completion method, on the basis of costs
incurred in relation to estimated total costs, or upon delivery of specific
products or services, as appropriate. For time-and-material contracts, revenues
are computed by multiplying the number of direct labor-hours expended in the
performance of the contract by the contract billing rates and adding other
billable direct costs. Performance incentives are incorporated in certain
contracts, which provide increased and decreased revenues based on actual
performance compared to established targets. Incentives based upon cost
performance are recorded when earned and other incentives and awards are
recorded when the amounts are earned and can be reasonably determined, or are
awarded. In certain circumstances, revenues are recognized when contract
amendments have not been finalized. Anticipated losses are recognized in the
accounting period in which they are first determined.

Cost of Services--Cost of services consists primarily of compensation
expenses for program personnel and direct expenses incurred to complete
programs, including cost of materials and subcontract efforts.

Cash and Cash Equivalents--For the purpose of reporting cash flows, cash
and cash equivalents include cash on hand, amounts due from banks, and
short-term investments with maturity dates of three months or less at the date
of purchase.

F-10

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

2. Summary of Significant Accounting Policies (Continued)

Property and Equipment--Property and equipment are recorded at original
cost. Upon sale or retirement, the costs and related accumulated depreciation
or amortization are eliminated from the respective accounts and any resulting
gain or loss is included in income. Maintenance and repairs are charged to
expense as incurred.

Depreciation and Amortization--Furniture and office equipment are
depreciated using the straight-line method with estimated useful lives ranging
from five to fifteen years. Leasehold improvements are amortized using the
straight-line method over a life of five years, or the term of the lease,
whichever is shorter.

Inventory--Inventory is carried at the lower of cost or market. Cost is
computed on a specific identification basis.

Goodwill and Other Intangibles--Goodwill, the excess of cost over the fair
value of net tangible and identifiable intangible assets of acquired companies,
is amortized on a straight-line basis over periods ranging from two to twenty
years. Contract rights and other intangibles are amortized on a straight-line
basis over periods ranging from three to five years.

Software Development Costs--The Company accounts for software development
costs in accordance with Statement of Financial Accounting Standards (SFAS) No.
86, Accounting for the Costs of Computer Software to be Sold, Leased, or
Otherwise Marketed. For projects fully funded by the Company, significant
development costs are capitalized from the point of demonstrated technological
feasibility until the point in time that the product is available for general
release to customers. Once the product is available for general release,
capitalized costs are amortized on a straight-line basis over a five-year
period or other such shorter period as may be required. The Company recorded
$29,000, $431,000, and $665,000 of amortization expense for the years ended
December 31, 1998, 1999 and 2000, respectively, and $499,000 for the nine
months ended September 30, 2001. Capitalized software costs included in other
intangibles at December 31, 1999 and 2000, and September 30, 2001 were
$2,380,000, $2,031,000 and $2,465,000, respectively.

Employee Supplemental Savings Plan (ESSP) Assets--The Company maintains
several nonqualified defined contribution supplemental retirement plans for
certain key employees that are accounted for in accordance with Emerging Issues
Task Force (EITF) Issue 97-14, Accounting for Deferred Compensation
Arrangements Where Amounts Earned Are Held in a Rabbi Trust and Invested, as
the underlying assets are held in rabbi trusts with investments directed by the
respective employee. A rabbi trust is a grantor trust generally set up to fund
compensation for a select group of management and the assets of this trust are
available to satisfy the claims of general creditors in the event of bankruptcy
of the Company. As required by EITF 97-14, the assets held by the rabbi trusts
are recorded at fair value in the consolidated financial statements as Employee
Supplemental Savings Plan Assets with a corresponding amount recorded as a
deferred compensation liability in Accrued Retirement.

Impairment of Long-Lived Assets--Whenever events or changes in
circumstances indicate that the carrying amount of long-lived assets, including
goodwill, software development costs and other intangibles, may not be fully
recoverable, the Company evaluates the probability that future

F-11

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

2. Summary of Significant Accounting Policies (Continued)

undiscounted net cash flows, without interest charges, will be less than the
carrying amount of the assets. If any impairment were indicated as a result of
this review, the Company would recognize a loss based on the amount by which
the carrying amount exceeds the estimated discounted future cash flows. The
Company believes that no impairments exist as of September 30, 2001.

Income Taxes--Deferred income taxes are recognized based on the estimated
future tax effects of temporary differences between the carrying amounts of
assets and liabilities for financial reporting purposes and the amounts used
for income tax purposes. Valuation allowances are established when necessary to
reduce deferred tax assets to amounts expected to be realized. Income tax
expense represents the current tax provision for the period and the change
during the period in deferred tax assets and liabilities. No provision is made
for U.S. taxes on foreign subsidiaries where earnings are expected to be
reinvested indefinitely.

Foreign Currency Translation--All assets and liabilities of foreign
subsidiaries are translated into U.S. dollars at fiscal year-end exchange
rates. Income and expense items are translated at average monthly exchange
rates prevailing during the fiscal year. The resulting translation adjustments
are recorded as a component of Accumulated other comprehensive income (loss).

Comprehensive Income (Loss)--Comprehensive income (loss) consists of net
income (loss), unrealized gains or losses on certain investments, cash flow
hedge and foreign currency translation adjustments and is presented in the
Consolidated Statements of Changes in Stockholders' Equity.

Stock-Based Compensation--As permitted under SFAS No. 123, Accounting for
Stock-Based Compensation, the Company accounts for stock-based awards using the
intrinsic value method prescribed in Accounting Principles Board (APB) Opinion
No. 25, Accounting for Stock Issued to Employees. Accordingly, no compensation
expense has been recognized in the financial statements related to employee
stock option awards.

Fair Value of Financial Instruments--The carrying value of the Company's
cash and cash equivalents, accounts receivable, accounts payable and accrued
expenses approximate their fair values.

New Accounting Pronouncements--In June 2001, the Financial Accounting
Standards Board (FASB) issued SFAS No. 141, Business Combinations, which
requires that all business combinations be accounted for by a single method -
the purchase method. The provisions of SFAS No. 141 apply to all business
combinations initiated after June 30, 2001. SFAS No. 141 also applies to all
business combinations accounted for using the purchase method for which the
date of acquisition is July 1, 2001, or later. The Company does not expect the
adoption of the provisions of SFAS No. 141 to have a material impact on its
consolidated financial position or results of operations.

In June 2001, the FASB issued SFAS No. 142, Goodwill and Other Intangible
Assets. SFAS No. 142 requires that, upon its adoption, amortization of goodwill
will cease and instead, the carrying value of goodwill will be evaluated for
impairment on an annual basis. Identifiable intangible assets will continue to
be amortized over their useful lives and reviewed for impairment in accordance
with SFAS No. 121, Accounting for the Impairment of Long-Lived Assets and for
Long-Lived Assets to be

F-12

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

2. Summary of Significant Accounting Policies (Continued)

Disposed Of. SFAS No. 142 will be effective for fiscal years beginning after
December 15, 2001. The Company has not yet completed its analysis of this new
pronouncement and the impact it will have on the consolidated financial
statements.

In July 2001, the FASB issued SFAS No. 143, Accounting for Asset Retirement
Obligations. SFAS No. 143 requires that the fair value of a liability for an
asset retirement obligation be recognized in the period in which it is
incurred, if a reasonable estimate of fair value can be made. The associated
asset retirement cost would be capitalized as part of the carrying amount of
the long-lived asset. SFAS No. 143 will be effective for fiscal years beginning
after June 15, 2002. The Company has not yet completed its analysis of this new
pronouncement and the impact it will have on the consolidated financial
statements.

In October 2001, the FASB issued SFAS No. 144, Accounting for the
Impairment or Disposal of Long-Lived Assets, which replaces SFAS No. 121. SFAS
No. 144 requires that long-lived assets be measured at the lower of carrying
amount or fair value less cost to sell, whether reported in continuing
operations or in discontinued operations. SFAS No. 144 also broadens the
reporting of discontinued operations to include all components of an entity
with operations that can be distinguished from the rest of the entity and that
will be eliminated from the ongoing operations of the entity in a disposal
transaction. The provisions of SFAS No. 144 are effective for financial
statements issued for fiscal years beginning after December 15, 2001. The
Company has not yet completed its analysis of this new pronouncement and the
impact it will have on the consolidated financial statements.

In November 2001, the EITF issued Topic No. D-103, Income Statement
Characterization of Reimbursements Received for "Out-of-Pocket'' Expenses
Incurred. EITF No. D-103 requires that companies report reimbursements received
for out-of-pocket expenses incurred as revenue, rather than as a reduction of
expenses. The provisions of EITF No. D-103 are effective for financial
statements issued for fiscal years beginning after December 15, 2001. As we
have historically accounted for reimbursements for out-of-pocket expenses in
the manner provided for under EITF No. D-103, we do not expect the adoption of
the provisions of EITF No. D-103 to have an impact on our consolidated
financial position or results of operations.

Reclassifications--Certain reclassifications have been made to previously
reported balances to conform with the current-period presentation.

3. Earnings per Share

Basic earnings per share has been computed by dividing net income available
to common stockholders by the weighted average number of shares of Class A,
Class B and Class C Common Stock outstanding during each period. Shares issued
during the period and shares reacquired during the period are weighted for the
portion of the period that they were outstanding. Diluted earnings per share
have been computed in a manner consistent with that of basic earnings per share
while giving effect to all potentially dilutive common shares that were
outstanding during each period.

F-13

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

3. Earnings per Share (Continued)

Basic and diluted earnings available to common stockholders are the same
and are computed as follows (in thousands):

Nin
Year Ended December 31, S
----------------------- ----- ----- ---
1998 1999 2000 2000 2001
----- ----- ----- ----------- ------
(Unaudited)

Income from continuing operations............. 2,921 6,796 7,125 5,113 12,160
Less: Dividends paid to Redeemable Class B
common stockholders......................... (83) -- -- -- --
----- ----- ----- ----- ------
Income from continuing operations available to
common stockholders......................... 2,838 6,796 7,125 5,113 12,160
===== ===== ===== ===== ======

The weighted average number of common shares outstanding is computed as
follows (in thousands):

N
Year Ended December 31,
----------------------- ----- ----- -
1998 1999 2000 2000 2001
----- ----- ----- ----------- -----
(Unaudited)

Basic weighted average common shares
outstanding................................ 1,153 1,135 1,132 1,130 1,138
Effect of potential exercise of stock options 15 10 10 10 10
----- ----- ----- ----- -----
Diluted weighted average common shares
outstanding................................ 1,168 1,145 1,142 1,140 1,148
===== ===== ===== ===== =====

4. Business Segment and Geographic Area Information

The Company operates as one segment, delivering a broad array of
information technology and technical services solutions under contracts with
the U.S. Government. No single customer accounted for 10% or more of the
Company's accounts receivable or revenues as of or for the years ended December
31, 1998, 1999 and 2000, and nine months ended September 30, 2001. In addition,
there were no sales to any customers within a single country except for the
United States where the sales accounted for 10% or more of total revenue.
Substantially all assets of continuing operations were held in the United
States for the years ended December 31, 1998, 1999 and 2000, and nine months
ended September 30, 2001. Revenues by geographic customer and the related
percentages of total revenues

F-14

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

4. Business Segment and Geographic Area Information (Continued)

for the years ended December 31, 1998, 1999 and 2000, and the nine months ended
September 30, 2001, were as follows (in thousands):

Nine Months Ended
Year Ended December 31, September 30,
---------------------------- -----------------
1998 1999 2000 2001
-------- -------- -------- -----------------

United States $312,507 $352,423 $373,989 $311,214
International 1,802 1,501 4,838 5,052
-------- -------- -------- --------
$314,309 $353,924 $378,827 $316,266
======== ======== ======== ========
United States 99.4 % 99.6 % 98.7 % 98.4 %
International 0.6 0.4 1.3 1.6
-------- -------- -------- --------
100.0 % 100.0 % 100.0 % 100.0 %
======== ======== ======== ========

5. Revenues and Receivables

The Company delivers a broad array of information technology and technical
services solutions under contracts with the U.S. Government. Revenues from the
U.S. Government under prime contracts and subcontracts, as compared to total
contract revenues, were approximately 97%, 96% and 96% for the years ended
December 31, 1998, 1999 and 2000, respectively, and approximately 96% for the
nine months ended September 30, 2001. Approximately 44%, 45%, 40% and 36% of
the Company's revenues were generated under cost-reimbursable contracts for the
years ended December 31, 1998, 1999 and 2000, and for the nine months ended
September 30, 2001, respectively.

The components of contract receivables are as follows (in thousands):

December 31, September 30,
---------------- -------------
1999 2000 2001
------- ------- -------------

Billed receivables...................................... $61,025 $59,561 $71,335
Unbilled receivables:
Amounts currently billable............................ 20,612 16,529 14,192
Revenues recorded in excess of estimated contract
value or funding.................................... 4,914 4,307 1,385
Retainage............................................... 2,198 1,761 1,665
Indirect costs incurred in excess of provisional billing
rates................................................. 1,571 2,755 4,212
Allowance for doubtful accounts......................... (1,838) (1,432) (1,940)
------- ------- -------
$88,482 $83,481 $90,849
======= ======= =======

Indirect cost rates in excess of provisional billing rates on U.S.
Government contracts are generally billable at actual rates less a reduction of
.5% of the actual general and administrative rate base before a Defense
Contract Audit Agency (DCAA) audit is completed. The balance remaining, as well
as any retainage, is billable upon completion of a DCAA audit (see note 13).
Revenues recorded

F-15

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

5. Revenues and Receivables (Continued)

in excess of contract value or funding are billable upon receipt of contractual
amendments. Amounts currently billable consist principally of amounts to be
billed within the next month.

6. Property and Equipment

Major classes of property and equipment are summarized as follows (in
thousands):

December 31, September 30
------------------------- -------------
1999 2000 2001
-------- -------- -------------

Furniture and equipment................................ $ 24,202 $ 22,504 $ 23,170
Leasehold improvements................................. 4,672 4,511 4,407
-------- -------- --------
28,874 27,015 27,577
Less: Accumulated depreciation and amortization........ (20,071) (19,982) (20,831)
-------- -------- --------
$ 8,803 $ 7,033 $ 6,746
======== ======== ========

Depreciation and amortization expense for the years ended December 31, 1998, 1999 and 2000,
and for the nine months ended September 30, 2001 was $2,606,000, $2,912,000, $2,837,000 and
$1,816,000, respectively.

7. Goodwill and Other Intangibles

The components of goodwill and other intangibles are as follows (in thousands):

December 31, September 30
------------------------- -------------
1999 2000 2001
-------- -------- -------------

Goodwill............................................... $ 17,948 $ 18,092 $ 18,092
Other intangibles...................................... 8,691 9,007 9,939
-------- -------- --------
26,639 27,099 28,031
Less: Accumulated amortization......................... (12,041) (14,752) (16,805)
-------- -------- --------
$ 14,598 $ 12,347 $ 11,226
======== ======== ========

Goodwill amortization expense for the years ended December 31, 1998, 1999
and 2000, and for the nine months ended September 30, 2001 was $836,000,
$1,033,000, $1,124,000 and $863,000, respectively.

F-16

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

8. Debt

December 31, September 30,
--------------- -------------
1999 2000 2001
------- ------- -------------

Borrowings under the Amended and Restated
Business Loan and Security Agreement:
Revolving credit facility............... $53,100 $57,496 $53,133
Term loan............................... 12,000 9,600 7,200
------- ------- -------
65,100 67,096 60,333
Subordinated credit agreement............ 8,000 8,000 8,000
Other notes.............................. 3,406 2,104 1,104
------- ------- -------
Total debt............................. 76,506 77,200 69,437
Less: Current portion of debt.......... 4,501 4,200 2,769
------- ------- -------
Debt--net of current portion........... $72,005 $73,000 $66,668
======= ======= =======

On December 17, 2001, the Company executed a new Business Loan and Security
Agreement (the Agreement) with Citizens Bank of Pennsylvania, PNC Bank N.A.
Branch Banking and Trust Company of Virginia, and Chevy Chase Bank, F.S.B. to
refinance and replace the company's agreement. The Agreement provides for
maximum borrowings of $71.4 million and consists of a $65.0 million revolving
credit facility and a $6.4 million term loan. Under the term loan portion of
the Agreement, the principal balance is payable in consecutive quarterly
installments of $492,308 on the last business day of each quarter commencing
with the last business day of December 2001. The maturity date of the Agreement
is December 31, 2004. Borrowings under the Agreement are collateralized by the
Company's eligible contract receivables, inventory, and certain property and
equipment and bear interest at the agreed-upon London Interbank Offering Rate
(LIBOR) plus market-rate spreads that vary according to the calculation of a
certain Company leverage ratio. Under the Agreement, the Company is required to
maintain specified financial covenants relating to fixed charge coverage,
interest coverage, debt coverage, and minimum consolidated net worth. The
Agreement also places limitations on additional borrowings, mergers, and
related party transactions, issuance of capital stock and payment of dividends,
and limitations with respect to capital expenditures.

On October 27, 2000, the Company executed the Second Amendment to the
Amended and Restated Business Loan and Security Agreement (the Prior Agreement)
with Mellon Bank N.A. (Mellon), First Union Commercial Corporation (First
Union) and PNC Bank N.A., which provides for maximum borrowings of $76.0
million. The Prior Agreement consisted of a $60.0 million revolving credit
facility and a $16.0 million term loan. Under the revolving portion of the
Prior Agreement, the Company could borrow the lesser of defined percentages of
receivables or $60.0 million. The maximum available borrowing under the
revolving credit facility at September 30, 2001 was $60.0 million. Under the
term loan portion of the Prior Agreement, the principal balance was payable in
consecutive quarterly installments of $800,000 on the last business day of each
quarter commencing with the last business day of December 1998. A final payment
of $6.4 million was due upon expiration of the Prior Agreement on December 31,
2001. In conjunction with the execution of the Prior Agreement, the Company
recorded $175,000 in loan origination costs, included in other assets, which
are being amortized ratably over the term of the Prior Agreement.

F-17

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

8. Debt (Continued)

Borrowings under the Prior Agreement were collateralized by the Company's
eligible contract receivables, inventory, and certain property and equipment
and bear interest at the agreed-upon LIBOR plus 2.25% for the first $25.0
million outstanding, at LIBOR plus 2.75% for the $7.2 million associated with
the term loan, at LIBOR plus 2.03125% for European currency loans of $1.0
million, and at the bank's prime rate plus 1.00% for outstanding amounts
greater than $33.2 million. At September 30, 2001, the agreed-upon LIBOR rate
was 2.79% for $15.0 million, 3.52% for $10.0 million, 3.49% for $6.4 million,
4.95% for $1.0 million and the bank's prime rate was 6.00% for the remaining
$27.9 million. The aggregate annual weighted average interest rates were 8.15%,
7.52% and 8.75% for 1998, 1999 and 2000, respectively. The aggregate weighted
average interest rate for the nine months ended September 30, 2001 was 8.49%.
The weighted average borrowings under the revolving portion of the Prior
Agreement during the years ended December 31, 1998, 1999 and 2000, and the nine
months ended September 30, 2001, were $43,663,000, $32,357,000, $43,876,000 and
$36,848,000, respectively.

As of September 30, 2001, the Company was contingently liable under letters
of credit totaling $6,703,000, which reduce the availability to borrow under
the revolving portion of the Prior Agreement.

The Company had $16.0 million and $20.5 million in borrowings under the
Prior Agreement at December 31, 1999 and 2000, respectively, and $13.8 million
in borrowings at September 30, 2001, which were repaid immediately after the
end of the respective periods.

On January 15, 1998, the Company redeemed all 75,000 shares of its then
outstanding Preferred Stock for a total of $8,029,000, or $107.05 per share
(see note 10). In order to provide the funding necessary to redeem the
Preferred Stock, the Company executed a seven-year Subordinated Credit
Agreement with First Source Financial LLP for $8,000,000 on January 9, 1998.
The remaining $29,000 of funding was provided by the Company's revolving credit
facility. The principal balance is payable in eight consecutive quarterly
installments of $888,889 on the first business day of each quarter commencing
with the first business day of January 2003. A ninth and final payment of
$888,888 is due on the last business day of December 2004. Interest under the
Subordinated Credit Agreement accrues at a fixed rate of 12% per annum and is
payable quarterly in arrears.

Debt outstanding at September 30, 2001, is scheduled to mature by the
following calendar year ends: $1,292,000 in 2001, $1,969,000 in 2002,
$6,525,000 in 2003, and $59,546,000 in 2004, and $104,000 in 2005.

The total interest paid was $4,510,000, $6,094,000, $6,073,000 and
$3,614,000, for the years ended December 31, 1998, 1999 and 2000, and for the
nine months ended September 30, 2001, respectively.

The Company uses interest rate swap agreements to manage exposure to
fluctuations in interest rates. At September 30, 2001, the Company had an
unleveraged swap agreement with First Union with a notional principal amount of
$25,000,000. This agreement was placed on November 22, 2000 with a fixed LIBOR
rate of 6.53% and is settled in cash on a monthly basis. The term of the
agreement is four years, but is cancelable at the option of First Union after
the third year. In December 2001, the swap agreement was reset within our new
banking group at a rate of 6.83% with a four-year term.

F-18

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

8. Debt (Continued)

Effective January 1, 2001, the Company adopted SFAS No. 133, Accounting for
Derivative Instruments and Hedging Activities, which, as amended by SFAS No.
138, establishes accounting and reporting standards for derivative instruments,
including some derivative instruments embedded in other contracts, and for
hedging activities. Upon adoption of SFAS No. 133, the Company recorded a
$704,000 ($422,000 net of tax) transition adjustment in other comprehensive
loss as a cumulative effect of a change in accounting principle. The Company
will reclassify this amount into interest expense over the remaining life of
the interest rate swap. The amount of the transition adjustment that will be
reclassified to earnings over the 12 months following the initial adoption of
SFAS No. 133 will be $180,000.

The Company hedges the cash flows of some of its long-term debt using an
interest rate swap. The Company enters into these derivative contracts to
manage its exposure to interest rate movements by achieving a desired
proportion of fixed rate versus variable rate debt. In an interest rate swap,
the Company agrees to exchange the difference between a variable interest rate
and either a fixed or another variable interest rate, multiplied by a notional
principal amount.

As of September 30, 2001, the Company has recognized the cash flow hedge at
its fair value of $2,084,000 in accounts payable and accrued expenses on the
consolidated balance sheet. The interest rate swap qualifies for cash flow
hedge accounting, therefore, an unrealized loss of $1,380,000 ($829,000 net of
tax), representing the effective portion of the change in its fair value, is
reported in other comprehensive loss and will be reclassified into interest
expense. The ineffective portion of the change in fair value of the swap
qualifying for cash flow hedge accounting is recognized in the consolidated
statements of income in the period of the change. For the nine months ended
September 30, 2001, the swap did not have any ineffectiveness for the cash flow
hedge.

Management believes that the fair value of debt is not significantly
different from what is recorded by the Company, based on comparable market
rates on similar issues.

9. Income Taxes

The domestic and foreign components of income before provision for income
taxes and minority interest were as follows (in thousands):

Nine Months Ended
Year Ended December 31, September 30,
---------------------- -----------------
1998 1999 2000 2001
------ ------- ------- -----------------

Domestic $4,454 $11,556 $13,401 $20,376
Foreign. 683 743 (289) 864
------ ------- ------- -------
$5,137 $12,299 $13,112 $21,240
====== ======= ======= =======

F-19

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

9. Income Taxes (Continued)

The provision for income taxes was comprised of the following components
(in thousands):

Year Ended Nine Months Ended
December 31, September 30,
----------------------- -----------------
1998 1999 2000 2001
------ ------- ------ -----------------

Current provision (benefit):....
Federal....................... $1,540 $ 5,352 $4,291 $ 9,215
State......................... 828 1,064 1,893 1,959
Foreign....................... -- (10) (203) 143
------ ------- ------ -------
2,368 6,406 5,981 11,317
------ ------- ------ -------
Deferred provision (benefit):...
Federal....................... (371) (1,227) 606 (1,947)
State......................... (25) 48 (732) (427)
Foreign....................... 211 239 119 119
------ ------- ------ -------
(185) (940) (7) (2,255)
------ ------- ------ -------
Total provision for income taxes $2,183 $ 5,466 $5,974 $ 9,062
====== ======= ====== =======

The provision for income taxes varies from the amount of income tax
determined by applying the applicable U.S. statutory tax rate to pre-tax income
as a result of the following:

Nine Months Ended
Year Ended December 31, September 30,
---------------------- -----------------
1998 1999 2000 2001
---- ---- ---- -----------------

Statutory U.S. Federal tax rate.............. 35.0% 35.0% 35.0% 35.0%
Increase (decrease) in rate resulting from:
State taxes--net of Federal benefit...... 4.9 4.6 3.9 5.2
Foreign taxes............................ (1.7) 0.2 (0.4) (0.2)
Other--additional provision.............. -- -- 2.8 --
Nondeductible items:
Goodwill amortization.................... 6.1 2.6 2.5 1.2
Other.................................... (1.8) 2.0 1.8 1.5
---- ---- ---- ----
Effective tax rate........................... 42.5% 44.4% 45.6% 42.7%
==== ==== ==== ====

The Company paid income taxes, net of refunds, of $1,996,000, $1,648,000,
$4,100,000 and $2,711,000 for the years ended December 31, 1998, 1999 and 2000,
and for the nine months ended September 30, 2001, respectively.

F-20

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

9. Income Taxes (Continued)

Deferred income taxes arise from temporary differences between the tax
basis of assets and liabilities and their reported amounts in the financial
statements. A summary of the tax effect of the significant components of
deferred income taxes follows (in thousands):

December 31, Sept
---------------- ------- ----
1999 2000 2001
------- ------- -------------

Gross deferred tax liabilities:
Receivables and payables........................................... $19,720 $20,628 $19,536
Investments........................................................ 1,846 1,323 1,546
Other assets....................................................... 1,294 1,016 1,308
Property and equipment............................................. 109 -- --
------- ------- -------
Total deferred tax liabilities................................... 22,969 22,967 22,390
------- ------- -------
Gross deferred tax assets:
Tax credits and net operating loss carryforwards................... (2,708) (2,751) (2,468)
Accrued liabilities................................................ (1,703) (1,431) (1,404)
Cash flow hedge.................................................... -- -- (833)
Allowance for potential contract losses and other contract reserves (1,231) (631) (675)
Property and equipment............................................. -- (195) (75)
------- ------- -------
Total deferred tax assets........................................ (5,642) (5,008) (5,455)
Less: Valuation allowance.......................................... 902 902 902
------- ------- -------
Total deferred tax assets--net................................... (4,740) (4,106) (4,553)
------- ------- -------
Net deferred tax liabilities......................................... $18,229 $18,861 $17,837
======= ======= =======

At September 30, 2001, the Company has state net operating losses of
approximately $13,300,000 that expire beginning 2001 through 2020. At September
30, 2001, the Company had a capital loss carryforward of $2,127,000 that
expires in 2003.

10. Capital Stock, Employee Stock Plan

Common Stock--Class A Common Stock is voting, no par value. The Company has
25,000,000 shares authorized with 4,111,502 shares issued and 1,022,882,
1,033,938 and 1,040,566 shares outstanding at December 31, 1999 and 2000, and
September 30, 2001, respectively. There were 3,088,620, 3,077,564 and 3,070,936
shares of Class A Common Stock held as Treasury Stock at December 31, 1999 and
2000, and September 30, 2001, respectively. At December 31, 1999 and 2000, and
September 30, 2001, there were an additional 37,366 shares of Class A Common
Stock, with a cost value of $640,000, reflected as Treasury Stock in accordance
with Emerging Issues Task Force Abstract 97-14, Accounting for Deferred
Compensation Arrangements where Amounts Earned are Held in a Rabbi Trust and
Invested. These shares are held in a Rabbi Trust to satisfy a defined
contribution pension obligation, to be paid in stock for the benefit of a
senior Company employee.

Class C Common Stock is no par value, nonvoting common stock. At December
31, 1999 and 2000, and September 30, 2001, the Company had 100,000 Class C
Common Stock shares authorized and 71,664 shares issued and outstanding.

F-21

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

10. Capital Stock, Employee Stock Plan (Continued)

Redeemable Class B Common Stock--Class B Common Stock is no par value,
nonvoting stock and is mandatorily redeemable by the stockholder at any time
and by the Company in the event of the involuntary or voluntary termination of
the stockholder's position within the Company at a per share price to be
determined by an independent valuation company. On July 31, 1998, the Company
redeemed 39,156 shares of Class B Common Stock from a former employee for
$2,926,500. On January 6, 2000, the Company redeemed 6,582 shares of Class B
Common Stock from an employee for $566,082. On February 29, 2000, the Company
redeemed 1,000 shares of Class B Common Stock from an outside Director for
$86,060. On December 18, 2000, the Company redeemed an additional 1,000 shares
of Class B Common Stock from an outside Director for $123,240. All of these
shares were placed in Treasury at their redemption value. The Company had
250,000 shares of Class B Common Stock authorized, 80,269 shares issued, and
41,113, 32,531 and 32,531 shares outstanding at December 31, 1999 and 2000, and
September 30, 2001, respectively.

On December 18, 1998, the Board of Directors approved a change to the
Company By-Laws, effective January 1, 1999, to conform Class B Common Stock
dividend rights on a parri-passu basis with Class A and Class C Common Stock.
Prior to this amendment, the Board of Directors paid an annual, per share
dividend on the Class B Common Stock using the prime rate announced
periodically by the Company's primary lender. These dividends were paid
quarterly. The 1998 Class B Common Stock cash dividends totaled $83,200, or
$1.43 per share. Class B Common Stock dividends paid in 1998 totaled $69,200,
whereas dividends payable at December 31, 1998, paid on January 15, 1999,
totaled $14,000.

With respect to liquidation rights, the Class C Common Stock is on a pro
rata parity with the Class A and Class B Common Stock.

Preferred Stock--Each December 31, beginning in 1994, the Company had the
right to require the holders of Preferred Stock to sell all or any part of the
75,000 authorized and issued shares of Preferred Stock for the Redemption
Price, which equated to the greater of (i) the par value plus accrued but
unpaid dividends or (ii) the fair market value of the Preferred Stock. In
December 1997, the Company's Board of Directors chose to exercise this right
and announced its intention to repurchase all of the Preferred Stock shares
based on a valuation performed as December 31, 1997.

On January 15, 1998, the Company redeemed and retired all 75,000 shares of
the Preferred Stock for a total of $8,029,000, or $107.05 per share. In
accordance with the terms of the Preferred Stock, the per share redemption
price was based on a valuation performed by an independent third party as of
December 31, 1997. In order to provide the funding necessary to redeem the
Preferred Stock, the Company executed a seven-year Subordinated Credit
Agreement with First Source Financial LLP for $8,000,000 on January 9, 1998
(see note 8).

Stock Options--The Company has a nonqualified fixed option plan that
reserves shares of Class B Common Stock for issuance to key employees. The
Company has adopted the disclosure-only provisions of SFAS No. 123, Accounting
for Stock-Based Compensation. No compensation cost is recognized for the stock
option plan.

The plan provides that shares granted come from the Company's authorized
but unissued Class B Common Stock. The price of the options granted pursuant to
this plan was not less than 100%

F-22

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

10. Capital Stock, Employee Stock Plan (Continued)

of the fair market value of the shares on the date of grant. On April 15, 1995,
the Company granted options to purchase 19,578 shares at an exercise price of
$27.46 per share. These options vested quarterly over a three-year period from
the date of grant. In July 1998, options to purchase 9,789 shares were
exercised. At December 31, 1998, 1999 and 2000, and at September 30, 2001,
options to purchase 9,789 shares were outstanding and exercisable, and expire
on April 15, 2005. No grants have been made since 1995.

In November 2001, the Board of Directors adopted, and the Stockholders
approved, the 2001 Stock Incentive Plan. No grants under this plan have been
made.
11. Retirement Plans

The Company maintains nonqualified supplemental defined benefit pension
plans for certain retired employees of an acquired company. The weighted
average assumptions used in accounting for the Company's pension plans in 1999,
2000 and 2001 were as follows:

1999 2000 2001
---- ---- ----

Discount rate................. 8.0% 8.0% 7.5%
Expected return on plan assets 6.0 6.0 6.0
Rate of compensation increase. N/A N/A N/A

The discount rate is the estimated rate at which the obligation for pension
benefits could effectively be settled. The expected return on plan assets
reflects the average rate of earnings that the Company estimates will be
generated on the assets of the plans. The Plans were partially funded beginning
in 1999. The rate of compensation increase reflects the Company's best estimate
of the future compensation levels of the individual employees covered by the
plans and is not applicable, as all covered employees had retired prior to 1998.

F-23

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

11. Retirement Plans (Continued)

The following table sets forth the status of the plans (in thousands):

Year Ended Nine Months Ended
December 31, September 30,
---------------- -----------------
1999 2000 2001
------- ------- -----------------

Change in benefit obligation:
Benefit obligation at beginning of period....... $ 1,748 $ 1,693 $ 1,707
Interest cost................................... 132 131 98
Actuarial (gain) loss........................... (16) 58 105
Benefits paid................................... (171) (175) (131)
------- ------- -------
Benefit obligation at end of period........... 1,693 1,707 1,779
------- ------- -------
Change in plan assets:
Fair value of plan assets at beginning of period -- 180 203
Employer contribution........................... 351 198 150
Benefits paid................................... (171) (175) (132)
------- ------- -------
Fair value of plan assets at end of period.... 180 203 221
------- ------- -------
Funded status at end of period.................... (1,513) (1,504) (1,558)
Unrecognized actuarial loss....................... 28 83 186
Unrecognized prior-service cost................... 110 79 55
Unrecognized net transition obligation............ 41 20 5
------- ------- -------
Net amount recognized at end of period........ $(1,334) $(1,322) $(1,312)
======= ======= =======

The components of net periodic pension cost for the Company's defined
benefit plans are provided in the following table (in thousands):

Year Ended Nine Months Ended
December 31, Septeber 30,
-------------- -----------------
1998 1999 2000 2001
---- ---- ---- -----------------

Interest cost on projected benefit obligation........ $134 $132 $131 $ 98
Net amortization of prior-service cost and transition
obligation......................................... 53 52 54 42
---- ---- ---- ----
Net periodic pension cost........................ $187 $184 $185 $140
==== ==== ==== ====

The Company maintains two qualified defined contribution plans, which cover
substantially all employees, that comply with Section 401 of the Internal
Revenue Code. Under these plans, the Company's stipulated Basic Matching
Contribution matches a portion of the participants' contribution based upon a
defined schedule. Contributions are invested by an independent investment
company in one or more of several investment alternatives. The choice of
investment alternatives is at the election of each participating employee. The
Company's contributions to the plans were approximately $2,091,000, $2,317,000,
$2,420,000 and $1,917,000 for the years ended December 31, 1998, 1999 and 2000,
and for the nine months ended September 30, 2001, respectively.

F-24

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

11. Retirement Plans (Continued)

The Company maintains nonqualified defined contribution supplemental
retirement plans for certain key employees. Under these plans the Company
accrues a stated annual amount and may also include interest at the greater of
10% or the Company's annual rate of return on investments. The Company incurred
expenses associated with these plans of $75,000 for each of the years ended
December 31, 1998, 1999 and 2000, and for the nine months ended September 30,
2001.

The Company also maintains a nonqualified deferred compensation plan for
certain key employees. Under this plan, eligible employees may defer up to 18%
of qualified annual compensation. Employee contributions to this plan were
approximately $1,729,000, $1,911,000, $1,875,000 and $1,598,000 for the years
ended December 31, 1998, 1999 and 2000, and nine months ended September 30,
2001, respectively.

On December 18, 1998, the Board of Directors approved the establishment of
a qualified Employee Stock Ownership Plan (ESOP), effective January 1, 1999,
for the benefit of substantially all of the Company's U.S. domestic-based
employees. The ESOP is non-leveraged and will be funded entirely through
Company contributions based on a percentage of eligible employee compensation,
as defined in the plan. Participants must be employees of the Company or
eligible Company subsidiaries and must meet minimum service requirements to be
eligible for annual contributions. The ESOP specifies a five-year vesting
schedule over which participants become vested in the Class A Common Stock
allocated to their participant account. The amount of the Company's annual
contribution to the ESOP is at the discretion of the Company's Board of
Directors.

For the years ended December 31, 1999 and 2000, the Company contributed and
allocated to participants' accounts $1,363,000 and $1,419,000, respectively,
worth of Class A common stock and cash. The Board of Directors has authorized
an additional ESOP contribution for the year ended December 31, 2001. It is
anticipated that shares attributable to the year ended December 31, 2001
commitment will be issued to the ESOP during the second quarter 2002, after an
independent appraisal of the stock value as of December 31, 2001, has occurred.
At September 30, 2001, an obligation to fund $910,000 was accrued.

As required under Statement of Position No. 93-6, Employers' Accounting for
Employee Stock Ownership Plans, compensation expense is recorded for shares
committed to be released to employees based on the fair market value of those
shares in the period in which they are committed to be released. The difference
between cost and fair market value of the released shares, which was $1,326,000
and $1,142,000, for the year ended December 31, 2000 and the nine months ended
September 30, 2001, respectively, is recorded in additional paid in capital.

12. Investments

GSE Systems, Inc.--The Company and its designees hold stock in GSE Systems,
Inc. (GSE), which was created by the merger of one of the Company's
majority-owned subsidiaries and two other entities in April 1994. In January
2000, the Company purchased 116,959 additional shares of common stock in GSE,
increasing the Company's ownership to 17.61%. The Company's ownership
percentage of GSE was 17.53% at September 30, 2001.

F-25

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

12. Investments (Continued)

The Company also holds notes receivable from GSE totaling $4.9 million as
of September 30, 2001. Of this amount, $3.9 million is convertible into GSE
preferred stock. The Company intends to convert the $3.9 million note into
preferred stock and the balance of the notes is due to be repaid in December
2001.

During the nine months ended September 30, 2001, the Company determined
that it had obtained significant influence with respect to GSE. As a result,
for the nine months ended September 30, 2001, the Company began accounting for
its investment in GSE using the equity method and recorded $469,000 in equity
earnings for the nine months ended September 30, 2001. Additionally the Company
has restated prior year amounts and has recorded $219,000, $16,000,
($1,555,000) in equity earnings (losses) for the years ended December 31, 1998,
1999 and 2000, respectively. The after-tax impact to net income as a result of
this restatement was $130,000, $10,000, and ($934,000) for the years ended
December 31, 1998, 1999 and 2000, respectively. The related impact to basic and
diluted earnings per share was $0.11, $0.01, and ($0.82) for the years ended
December 31, 1998, 1999 and 2000, respectively.

Vosper-ManTech Limited--On September 7, 1995, MASI U.K. Limited, a
majority-owned subsidiary of the Company, and Vosper Thornycroft Limited
entered into a Joint Venture agreement to form Vosper-ManTech Limited (the
Joint Venture). The Joint Venture is owned 40% by MASI U.K. Limited and 60% by
Vosper Thornycroft Limited. In 2000, the Joint Venture began work on a ten-year
follow-on contract providing outsourcing of the Government Communications
Headquarters (GCHQ) for the United Kingdom's logistics and engineering services.

The Company's interest in the Joint Venture is accounted for using the
equity method. The Company recorded $692,000, $794,000, $393,000 and $400,000
in equity earnings for the years ended December 31, 1998, 1999 and 2000, and
for the nine months ended September 30, 2001, respectively.

The components of investments are as follows (in thousands):

December 31, September 30,
------------- -------------
1999 2000 2001
------ ------ -------------

GSE Systems, Inc....... $2,753 $1,698 $2,167
Vosper-ManTech Limited. 1,861 2,112 2,199
------ ------ ------
Total investments.. $4,614 $3,810 $4,366
====== ====== ======

13. Commitments and Contingencies

Payments to the Company on cost-reimbursable contracts with the U.S.
Government are provisional payments subject to adjustment upon audit by the
DCAA. Audits through 1999 have been completed and resulted in no material
adjustments. The audits for 2000 through 2001 are not expected to have a
material effect on the results of future operations.

The Company is involved in certain legal proceedings, claims and disputes
arising from the normal course of business and has litigation pending under
several suits; however, management

F-26

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

13. Commitments and Contingencies (Continued)

believes that the ultimate resolution of these matters will not have a material
effect on the Company's financial position or results of operations.

In February 2000, a judgment was entered against the Company in favor of
Boston Properties, a real estate management firm, in the amount of $1,175,000
for unpaid rent under a lease held by Boston Properties with Global-InSync,
Inc. (Global). Global is the successor to a business sold by the Company in
1996 (see note 16). The Company provided a financial guarantee to Boston
Properties on the lease to facilitate the timely closing of this business sale.
Boston Properties and Global extended the original lease without notice to the
Company. The legal action sought to recover unpaid rent beyond the term of the
original lease. After losing the appeal, the Company paid this judgment and
other related expenses in August 2000.

The Company leases office space and equipment under long-term operating
leases. A number of the leases contain renewal options and escalation clauses.
At September 30, 2001, aggregate future minimum rental commitments under these
leases are as follows (in thousands):

Office
Space Equipment Total
------- --------- -------

Three months ending December 31, 2001 $ 1,929 $ 1,191 $ 3,120
Year ending:
December 31, 2002.................. 6,288 3,069 9,357
December 31, 2003.................. 5,333 2,508 7,841
December 31, 2004.................. 4,752 1,934 6,686
December 31, 2005.................. 4,214 1,523 5,737
Thereafter....................... 8,193 1,269 9,462
------- ------- -------
Total............................ $30,709 $11,494 $42,203
======= ======= =======

Office space and equipment rent expense totaled approximately $6,303,000,
$7,441,000, $9,578,000 and $7,715,000 for the years ended December 31, 1998,
1999 and 2000, and for the nine months ended September 30, 2001, respectively.

14. Acquisitions

Each of the following acquisitions has been accounted for as a purchase,
and accordingly, the operating results of each of the acquired entities have
been included in the Company's consolidated financial statements since the
respective dates of acquisition. The aggregate amount of goodwill and other
intangibles resulting from the excess of the respective purchase prices over
the fair market value of net assets acquired in 1999 was approximately
$3,558,000.

REVIVE Technologies, Inc.--On April 16, 1999, the Company acquired certain
assets and liabilities of REVIVE Technologies, Inc. (REVIVE) for a cash
purchase price of $500,000 and a note payable of $1,105,000 (interest accrues
at a rate of 6.50%), due and payable in four equal quarterly installments
beginning in July 1999. REVIVE specializes in the automated conversion of
legacy mainframe databases.

F-27

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

14. Acquisitions (Continued)

Advanced Development Group, Inc.--On January 5, 1999, the Company acquired
all of the outstanding stock of Advanced Development Group, Inc. (ADG) for a
purchase price of $2,000,000 in the form of a note payable over two years
(interest accrues at the prime rate). This acquisition also provided for
additional cash payments, not to exceed $5,000,000, to be made over the three
years following the closing, based on the attainment of certain earnings
levels. In May 2000, the Company paid $495,000 against this obligation.

ADG specializes in the development of interactive multimedia and distance
learning training products. It is the leading Interactive Multimedia
Instruction (IMI) developer for the U.S. Army. In addition, ADG has developed a
proprietary IMI Course Builder Program(C) to enable the development of
high-quality, low-cost training products that incorporate sophisticated
animation, graphics and video.

15. Discontinued Operations

On September 26, 2001, the Company executed a formal plan to exit certain
commercial and foreign lines of business that no longer contribute to the core
competencies. The businesses include the Australian-based software solutions
consulting business, the United Kingdom-based bank remittance processing
business, the China-based consulting business, the U.S.-based environmental
consulting and remediation business and the U.S.-based application-hosting
business. Although some of these ventures show promise and growth, these
businesses are oriented towards commercial customers and do not contribute to
the core competencies on which the Company is currently focused. All of these
businesses are expected to be sold, and all of the dispositions are expected to
be completed on or before June 30, 2002. Based on independent valuations,
market comparable information and interest expressed in these businesses, an
estimate has been provided for the likely net gains and losses to income
expected from these businesses through the estimated date of disposal. As a
result, in accordance with APB Opinion No. 30, Reporting the Results of
Operations--Reporting the Effects of Disposal of a Segment of a Business, and
Extraordinary, Unusual and Infrequently Occurring Events and Transactions,
results of operations have been classified as discontinued and prior periods
have been restated. The Company has segregated the net assets and liabilities
held for sale, recorded all current and expected future losses and deferred all
gains expected to be realized upon disposal of the respective entities. The
amounts the Company will ultimately realize could differ in the near term from
the amounts estimated in arriving at the loss on disposal of the discontinued
operations.

F-28

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Year Ended December 31, 1998, 1999 and 2000 and Nine Months Ended September 30,
2001

15. Discontinued Operations (Continued)

Revenues and losses from discontinued operations are as follows (in
thousands):

Nine Months Ended
Year Ended December 31, September 30,
----------------------------- -----------------
1998 1999 2000 2001
-------- --------- -------- -----------------

Income statement data:
Revenues............................. $ 85,976 $ 97,503 $ 63,389 $ 37,587
Costs and expenses................... (87,034) (101,428) (72,554) (48,390)
-------- --------- -------- --------
Operating loss....................... (1,058) (3,925) (9,165) (10,803)
Minority interest.................... (716) (652) 1,333 851
Income tax benefit................... 506 1,850 3,165 3,419
-------- --------- -------- --------
Loss from discontinued operations net
of tax and minority interest....... $ (1,268) $ (2,727) $ (4,667) $ (6,533)
======== ========= ======== ========

The estimated net loss on disposal of discontinued operations recorded for
the nine months ended September 30, 2001 was $5,890,000, net of an income tax
benefit of $3,818,000. This loss included a provision for anticipated closing
costs and net operating losses through the estimated date of disposal of
$3,852,000, net of an income tax benefit of $2,404,000.

The Company's Australian-based software solutions consulting business
disposed of its Local Government business on June 30, 2000 and recorded a loss
on the disposal of $719,000, net of tax. The revenues and operating losses of
this business unit were not significant for the periods presented.

16. Loss From Investment Default

On September 16, 1996, the Company sold certain assets of the Systems
Integration business to Global in exchange for notes receivable of $1,956,000,
due and payable in full over the next five years, and stock in their parent
company, Global Intellicom, Inc. as follows: 49,778 shares of common stock and
convertible exchangeable preferred stock with a carrying value of $3,080,000,
based upon an independent third-party valuation as of the date of sale.

At December 31, 1997, Global was in default on its note obligations but had
proposed a payment plan satisfactory to the Company to cure this default. In
1998, Global was unable to discharge the payment plan and defaulted on the full
note obligations in early 1999. As a result of the general financial condition
of Global Intellicom, Inc. and a sharp decline in the trading value of their
stock, it is the belief of the Company management that the value of all
investments in Global Intellicom, Inc. are permanently impaired. A pre-tax
charge of $5,230,000 ($3,138,000 after tax) was recorded against 1998 earnings,
representing the total recorded value of all notes and stock in Global and
Global Intellicom, Inc., respectively.

* * * * * *

F-29

[INSIDE BACK COVER ART]

The background of the page is solid red with a black outlined circle in the
center of the page. Inside the circle is a collage of photo images including
(in clockwise order from the top): an American flag, a computer screen, a
submarine, a computer control room, a chemist in a protective mask, a soldier
working with automated test equipment on the back of a military vehicle, a man
working at a computer workstation, a fighter jet, and a man working with
automated test equipment. In the center of the collage is a closed circuit TV
security camera. Above the circle a caption reads, "ManTech International
Corporation." A caption below the circle reads "A continuing tradition of
service and solutions on critical national defense programs for the U.S.
Intelligence Community and Department of Defense."

[Insert logo here]

The back page is white with the ManTech logo in the center of the page
written in solid black lettering blending into white-on-red lettering, divided
with white lines.

PART II
INFORMATION NOT REQUIRED IN PROSPECTUS

Item 13. Other Expenses of Issuance and Distribution.

The estimated expenses in connection with this offering (all of which will
be borne by the registrant), are as follows:

Expenses Amount
- -------- -------

Securities and Exchange Commission registration fee $23,000
NASD filing fee....................................
Nasdaq listing fees................................ *
Printing expenses.................................. *
Accounting fees and expenses....................... *
Legal fees and expenses............................ *
Blue Sky fees and expenses......................... *
Transfer agent's fees and expenses................. *
Miscellaneous...................................... *
Total........................................... $ *

- --------
* To be included by amendment.

Item 14. Indemnification of Directors and Officers.

Section 145 of the Delaware General Corporation Law (DGCL) generally
provides that all directors and officers (as well as other employees and
individuals) may be indemnified against expenses (including attorney's fees),
judgments, fines and amounts paid in settlement actually and reasonably
incurred in connection with certain specified actions, suits or proceedings,
whether civil, criminal, administrative or investigative (other than an action
by or in the right of the corporation -- a "derivative action"), if they acted
in good faith and in a manner they reasonably believed to be in or not opposed
to the best interests of the corporation, and, with respect to any criminal
action or proceeding, had no reasonable cause to believe their conduct was
unlawful. A similar standard of care is applicable in the case of derivative
actions, except that indemnification extends only to expenses (including
attorneys' fees) actually and reasonably incurred in connection with defense or
settlement of an action and the DGCL requires court approval before there can
be any indemnification where the person seeking indemnification has been found
liable to the corporation. Section 145 of the DGCL also provides that the
rights conferred thereby are not exclusive of any other right which any person
may be entitled to under any bylaw, agreement, vote of stockholders or
disinterested directors or otherwise, and permits a corporation to advance
expenses to or on behalf of a person to be indemnified upon receipt of an
undertaking to repay the amounts advanced if it is determined that the person
is not entitled to be indemnified.

The registrant's certificate of incorporation and bylaws provide that each
person who was or is made a party or is threatened to be made a party to or is
involved in any action, suit or proceeding by reason of the fact that he is or
was a director or officer of the registrant (or is or was serving at the
request of the registrant as director, officer, employee or agent of another
entity), shall be indemnified and held harmless by the registrant to the
fullest extent authorized by the DGCL, as in effect (or to the extent that
indemnification is broadened, as it may be amended), against all expense,
liability and loss (including attorneys' fees, judgments, fines, ERISA excise
taxes or penalties and amounts paid or to be paid in settlement) reasonably
incurred or suffered by such person in connection therewith. Except

II-1

with respect to actions initiated by an officer or director against the
registrant to recover the amount of an unpaid claim, the registrant is required
to indemnify an officer or director in connection with an action, suit or
proceeding initiated by such person only if such action, suit or proceeding was
authorized by the board of directors of the registrant. The certificate of
incorporation and bylaws further provide that an officer or director may (60
days after a written claim has been received by the registrant) bring suit
against the registrant to recover an unpaid claim and, if such suit is
successful, the expense of bringing such suit. While it is a defense to such
suit that the claimant has not met the applicable standards of conduct which
make indemnification permissible under the DGCL, neither the failure of the
board of directors to have made a determination that indemnification is proper,
nor an actual determination that the claimant has not met the applicable
standard of conduct, shall be a defense to the action or create a presumption
that the claimant has not met the applicable standard of conduct.

The certificate of incorporation and bylaws also provide that the rights
conferred thereby are contract rights, that they are not exclusive of any other
rights which an officer or director may have or hereafter acquire under any
statute, any other provision of the certificate of incorporation, bylaw,
agreement, vote of stockholders or disinterested directors or otherwise, and
that they include the right to be paid by the registrant the expenses incurred
in defending any specified action, suit or proceeding in advance of its final
disposition provided that, if the DGCL so requires, such payment shall only be
made upon delivery to the registrant by the officer or director of an
undertaking to repay all amounts so advanced if it shall ultimately be
determined that such director or officer is not entitled to be indemnified
under the bylaws or otherwise.

Item 15. Recent Sales of Unregistered Securities

On September 17, 2001, we made a net contribution of 6,628 shares of our
Class A common stock to the Employee Stock Ownership Plan Trust.

The transaction described above was undertaken in reliance upon the
exemptions from the registration requirements of the Securities Act of 1933
afforded by Rule 701 promulgated thereunder, as a transaction pursuant to the
compensatory benefit plans and contracts relating to compensation. The
registrant believes that exemptions other than the foregoing exemption may
exist for this transaction.

Item 16. Exhibits and Financial Statement Schedule

(a) Exhibits

II-2

EXHIBIT INDEX

Exhibit
Number Description of Exhibit
- ------ ----------------------

*1.1 Form of Underwriting Agreement

2.1 Form of Plan of Merger by and between ManTech International Corporation, a New Jersey
corporation, and ManTech International Corporation, a Delaware corporation

3.1 Form of Amended and Restated Certificate of Incorporation of the Registrant

3.2 Form of Amended and Restated Bylaws of the Registrant

*4.1 Form of Common Stock Certificate.

4.2 Business Loan and Security Agreement with Citizens Bank of Pennsylvania, PNC Bank N.A.,
Branch Banking and Trust Company of Virginia, and Chevy Chase Bank, F.S.B.

*5.1 Opinion of Gibson, Dunn & Crutcher LLP

*10.1 Retention Agreement, effective as of the closing of the offering, between John A. Moore and
ManTech International Corporation.

*10.2 Form of Confidentiality, Nonsolicitation and Noncompete Agreement, effective as of the closing of
this offering, between specified executive officers and ManTech International Corporation.

*10.3 The Management Incentive Plan

**10.4 Lease of Facility at 12015 Lee Jackson Highway, Fairfax, Virginia.

10.5 Promissory Notes dated April 13, 2001, June 12, 1996 and June 23, 1994 by and between George J.
Pedersen and ManTech International Corporation.

*10.6 Retention Agreement, effective as of the closing of this offering, between George J. Pedersen and
ManTech International Corporation

*10.7 Form of Employee Stock Purchase Plan

10.8 USA CECOM Acquisition CTR-Washington, Contract No. DAAB07-98-A-6001, effective
July 24, 1998

16.1 Letter from PricewaterhouseCoopers LLP to the Securities and Exchange Commission

*21.1 Subsidiaries of the Registrant

*23.1 Consent of Gibson, Dunn & Crutcher LLP (included in Exhibit 5.1)

23.2 Consent of Deloitte & Touche LLP

23.3 Consent of PricewaterhouseCoopers LLP

*24.1 Power of Attorney

- --------
* To be filed by amendment.

** Previously filed.

(b) Financial Statement Schedule

Valuation and Qualifying Accounts

II-3

INDEPENDENT AUDITORS' REPORT ON SCHEDULE

To the Board of Directors and Stockholders of
ManTech International Corporation
Fairfax, Virginia:

We have audited the consolidated financial statements of ManTech International
Corporation as of December 31, 1999 and 2000 and September 30, 2001 and for the
years ended December 31, 1999 and 2000 and the nine months ended September 30,
2001, and have issued our report thereon dated November 16, 2001, except for
Note 8 as to which the date is December 17, 2001. Such consolidated financial
statements and report are included elsewhere in this Registration Statement.
Our audits also included the financial statement schedule of ManTech
International Corporation listed in Item 16(b). This consolidated financial
statement schedule is the responsibility of the Company's management. Our
responsibility is to express an opinion based on our audits.

In our opinion, such consolidated financial statement schedule, when considered
in relation to the basic consolidated financial statements taken as a whole,
presents fairly, in all material respects, the information set forth therein.

DELOITTE & TOUCHE LLP

McLean, Virginia
November 16, 2001

II-4

Report of Independent Accountants on
Financial Statement Schedule

To the Board of Directors and Stockholders of
MANTECH INTERNATIONAL CORPORATION:

Our audit of the consolidated financial statements referred to in our report
dated April 26, 1999, except for Note 16, as to which the date is June 7, 1999
and Note 15, as to which the date is November 15, 2001, appearing in the
Registration Statement under the Securities Act of 1933 of ManTech
International Corporation also included an audit of the financial statement
schedule listed in Item 16(b) of this Registration Statement. In our opinion,
the financial statement schedule presents fairly, in all material respects, the
information set forth therein when read in conjunction with the related
consolidated financial statements.

PricewaterhouseCoopers LLP

McLean, Virginia
April 26, 1999

II-5

SCHEDULE II
Valuation and Qualifying Accounts

Activity in the Company's allowance accounts for the years ended December 31,
1998, 1999 and 2000 and the nine months ended September 30, 2001 was as follows
(in thousands):

Doubtful Accounts
- ---------------------------------------------------------------------------------
Balance at Charged to Balance at
Period Beginning of Period Costs and Expenses Deductions Other* End of Period
- ------ ------------------- ------------------ ---------- ------ -------------

1998...... $2,314 217 (1,152) 439 $1,818
1999...... 1,818 901 (1,033) 152 1,838
2000...... 1,838 313 (1,183) 464 1,432
Sept. 2001 1,432 523 (357) 342 1,940

Deferred Tax Asset Valuation
- ---------------------------------------------------------------------------------
Balance at Charged to Balance at
Period Beginning of Period Costs and Expenses Deductions Other* End of Period
- ------ ------------------- ------------------ ---------- ------ -------------

1998...... $902 -- -- -- $902
1999...... 902 -- -- -- 902
2000...... 902 -- -- -- 902
Sept. 2001 902 -- -- -- 902

- --------
* Other represents doubtful account reserves recorded as part of Net Revenues.

II-6

Item 17. Undertakings

(a) The undersigned registrant hereby undertakes to provide to the
underwriters, at the closing specified in the underwriting agreement,
certificates in such denominations and registered in such names as required by
the underwriters to permit prompt delivery to each purchaser.

(b) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.

(1) For purposes of determining any liability under the Securities Act,
the information omitted from the form of prospectus filed as part of this
registration statement in reliance upon Rule 430A and contained in a form
of prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or
497(h) under the Securities Act shall be deemed to be part of this
registration statement as of the time it was declared effective.

(2) For the purpose of determining any liability under the Securities
Act, each post-effective amendment that contains a form of prospectus shall
be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.

II-7

SIGNATURES AND POWER OF ATTORNEY

Pursuant to the requirements of the Securities Act of 1933, the registrant
has duly caused this registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in Washington, D.C., on December 31,
2001.

MANTECH INTERNATIONAL CORPORATION

By: /s/ GEORGE J. PEDERSEN
---------------------
George J. Pedersen
Chairman of the Board of
Directors, Chief Executive Officer
and President

Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities indicated on December 31, 2001.

Signature Title
--------- -----

/s/ GEORGE J. PEDERSEN Chairman of the Board of Directors, Chief Executive Officer
- ----------------------- and President

/s/ JOHN A. MOORE, JR.* Executive Vice President, Chief Financial Officer, Treasurer
- ----------------------- and Director

/s/ MICHAEL D. GOLDEN*
- ----------------------- Director

/s/ STEPHEN W. PORTER*
- ----------------------- Director

/s/ WALTER W. VAUGHAN*
- ----------------------- Director

* Executed by George J. Pedersen on behalf of such individual pursuant to a
power of attorney granted November 23, 2001.

II-8



                                                                     EXHIBIT 2.1

                          AGREEMENT AND PLAN OF MERGER
                      OF MANTECH INTERNATIONAL CORPORATION,
                             A DELAWARE CORPORATION,
                                       AND
                       MANTECH INTERNATIONAL CORPORATION,
                            A NEW JERSEY CORPORATION

     THIS AGREEMENT AND PLAN OF MERGER dated as of January __, 2002 (the
"Agreement") is by and between ManTech International Corporation, a Delaware
corporation ("ManTech Delaware"), and ManTech International Corporation, a New
Jersey corporation ("ManTech New Jersey"). ManTech Delaware and ManTech New
Jersey are sometimes referred to herein as the "Constituent Corporations."

                                    RECITALS

     WHEREAS, ManTech Delaware is a corporation duly organized and existing
under the laws of the State of Delaware and has an authorized capital stock of
1,000 shares of Common Stock, par value $0.01 per share (the "Old Delaware
Common Stock") and as of the date hereof, 100 shares of Old Delaware Common
Stock are issued and outstanding, all of which are held by ManTech New Jersey;

     WHEREAS, immediately prior to the Effective Time of the Merger (as defined
below), ManTech Delaware will amend and restate its Certificate of Incorporation
so that ManTech Delaware's total authorized capital stock will consist of
220,000,000 shares, of which (a) 150,000,000 shares are Class A common stock,
$0.01 par value per share (the "Delaware Class A Common"), (b) 50,000,000 shares
are Class B common stock, $0.01 par value per share (the "Delaware Class B
Common" and together with the Class A Common, the "ManTech Delaware Common
Stock") and (c) 20,000,000 shares are preferred stock, which is undesignated as
to series, rights, preferences, privileges or restrictions;

     WHEREAS, ManTech New Jersey is a corporation duly organized and existing
under the laws of the State of New Jersey and its total authorized capital stock
consists of 25,350,000 shares, no par value per share, of which (a) 25,000,000
shares are designated as Class A common stock ("New Jersey Class A Common"), (b)
250,000 shares are designated as Class B common stock ("New Jersey Class B
Common"), and (c) 100,000 shares are designated as Class C common stock ("New
Jersey Class C Common" and collectively with the New Jersey Class A Common and
New Jersey Class B Common, the "ManTech New Jersey Common Stock").

     WHEREAS, as of the date hereof, 1,022,882 shares of New Jersey Class A
Common, 41,113 shares of New Jersey Class B Common, and 71,664 shares of New
Jersey Class C Common are issued and outstanding, and there exists the right to
purchase an additional 9,789 shares of New Jersey Class B Common pursuant to an
option granted under the ManTech International Corporation 1995 Long-Term
Incentive Plan (the "Option");

     WHEREAS, the Board of Directors of ManTech New Jersey has determined that,
for the purpose of effecting the reincorporation of ManTech New Jersey in the
State of Delaware, it is advisable and in the best interests of ManTech New
Jersey and its stockholders that ManTech New Jersey merge with and into ManTech
Delaware upon the terms and conditions herein provided;

     WHEREAS, the respective Boards of Directors of ManTech Delaware and ManTech
New Jersey have approved this Agreement and have directed that this Agreement be
submitted to a vote of their



respective stockholders and, assuming approval thereof, executed by the officers
on the signature page hereto.

     NOW, THEREFORE, in consideration of the mutual agreements and covenants set
forth herein, ManTech Delaware and ManTech New Jersey hereby agree, subject to
the terms and conditions hereinafter set forth, as follows:

                                    AGREEMENT

1.   MERGER

     1.1. MERGER. In accordance with the provisions of this Agreement, the
Delaware General Corporation Law, including Section 253, and the New Jersey
Business Corporation Act, including Section 14A:10-7, ManTech New Jersey shall
be merged with and into ManTech Delaware (the "Merger"), the separate existence
of ManTech New Jersey shall cease and ManTech Delaware shall survive the Merger
and shall continue to be governed by the laws of the State of Delaware, and
ManTech Delaware shall be, and is herein sometimes referred to as, the
"Surviving Corporation," and the name of the Surviving Corporation shall be
"ManTech International Corporation."

     1.2. FILING AND EFFECTIVENESS. The Merger shall become effective when all
of the following actions shall have been completed:

          (a) This Agreement and the Merger have been adopted and approved by
the stockholders of each Constituent Corporation in accordance with the
requirements of the Delaware General Corporation Law and the New Jersey Business
Corporation Act;

          (b) All of the conditions precedent to the consummation of the Merger
specified in this Agreement shall have been satisfied or duly waived by the
party entitled to satisfaction thereof;

          (c) An executed Certificate of Merger or an executed, acknowledged and
certified counterpart of this Agreement meeting the requirements of the Delaware
General Corporation Law shall have been filed with the Secretary of State of the
State of Delaware; and

          (d) An executed Certificate of Merger or an executed counterpart of
this Agreement meeting the requirements of the New Jersey Business Corporation
Act shall have been filed with the Secretary of State of the State of New
Jersey.

     The date and time when the Merger shall become effective, as aforesaid, is
herein called the "Effective Date of the Merger."

     1.3. EFFECT OF THE MERGER. Upon the Effective Date of the Merger, the
separate existence of ManTech New Jersey shall cease and ManTech Delaware, as
the Surviving Corporation, shall: (i) continue to possess all of its assets,
rights, powers and property as constituted immediately prior to the Effective
Date of the Merger; (ii) be subject to all actions previously taken by its and
ManTech New Jersey's Boards of Directors; (iii) succeed, without other transfer,
to all of the assets, rights, powers and property of ManTech New Jersey in the
manner as more fully set forth in Section 259 of the Delaware General
Corporation Law, (iv) continue to be subject to all of its debts, liabilities
and obligations as constituted immediately prior to the Effective Date of the
Merger, including, without

                                        2



limitation, the ManTech International Corporation 1995 Long-Term Incentive Plan
and (v) succeed, without other transfer, to all of the debts, liabilities and
obligations of ManTech New Jersey in the same manner as if ManTech Delaware had
itself incurred them, all as more fully provided under the applicable provisions
of the Delaware General Corporation Law and the New Jersey Business Corporation
Act.

2.   CHARTER DOCUMENTS, DIRECTORS AND OFFICERS

     2.1. CERTIFICATE OF INCORPORATION. The Amended and Restated Certificate of
Incorporation of ManTech Delaware, which shall be attached as Exhibit A to the
Certificate of Merger filed with the Delaware Secretary of State on the
Effective Date of the Merger, shall be the Certificate of Incorporation of the
Surviving Corporation until duly amended in accordance with the provisions
thereof and applicable law.

     2.2. BYLAWS. The Bylaws of ManTech Delaware as in effect immediately prior
to the Effective Date of the Merger shall continue in full force and effect as
the Bylaws of the Surviving Corporation until duly amended in accordance with
the provisions thereof and applicable law.

     2.3. DIRECTORS AND OFFICERS. The directors and officers of ManTech New
Jersey immediately prior to the Effective Date of the Merger shall be the
directors and officers of the Surviving Corporation until their respective
successors shall have been duly elected and qualified or until as otherwise
provided by law, or the Certificate of Incorporation of the Surviving
Corporation or the Bylaws of the Surviving Corporation, and shall have all
powers and authorities granted to such office previously.

3.   MANNER OF CONVERSION OF STOCK

     3.1. MANTECH NEW JERSEY COMMON STOCK. Upon the Effective Date of the
Merger, each share of New Jersey Class B Common, issued and outstanding
immediately prior thereto shall, by virtue of the Merger and without any action
by the Constituent Corporations, the holder of such shares, or any other person,
be changed and converted into and exchanged for one share of fully paid and
nonassessable share of Delaware Class A Common, and each share of New Jersey
Class A Common and New Jersey Class C Common, issued and outstanding immediately
prior thereto shall, by virtue of the Merger and without any action by the
Constituent Corporations, the holder of such shares, or any other person, be
changed and converted into and exchanged for one share of fully paid and
nonassessable share of Delaware Class B Common.

     3.2. MANTECH NEW JERSEY OPTION. Upon the effective date of the Merger, the
Option shall be assumed by the Surviving Corporation and shall continue to have
and be subject to, the same terms and conditions set forth in the ManTech New
Jersey 1995 Long-Term Incentive Plan immediately prior to the effective time,
except that (i) such Option shall be exercisable for that number of shares of
Delaware Class A Common Stock equal to the number of shares of New Jersey Class
B Common that were issuable upon exercise of the Option immediately prior to the
Effective Date, and (ii) the per share exercise price for the shares of Delaware
Class A Common issuable upon exercise of such assumed Option shall be equal to
the per share exercise price for the shares of New Jersey Class B Common that
were issuable upon exercise of such Option immediately prior to the Effective
Date.

     3.3. OUTSTANDING OLD DELAWARE COMMON STOCK. Upon the Effective Date of the
Merger, each share of Old Delaware Common Stock, issued and outstanding
immediately

                                        3



prior thereto shall, by virtue of the Merger and without any action by ManTech
Delaware, the holder of such shares or any other person, be canceled and
retired.

     3.4. EXCHANGE OF CERTIFICATES.

     The registered owner on the books and records of the Surviving Corporation
of any shares of stock represented by such outstanding certificate shall, until
such certificate shall have been surrendered for transfer or conversion or
otherwise accounted for to the Surviving Corporation have and be entitled to
exercise any voting and other rights with respect to and to receive dividends
and other distributions upon the shares of ManTech Delaware Common Stock
represented by such outstanding certificate as provided above.

     Each certificate representing ManTech Delaware Common Stock issued in the
Merger shall bear the same legends, if any, with respect to the restrictions on
transferability as the certificates of ManTech New Jersey Common Stock so
converted and given in exchange therefor, unless otherwise determined by the
Board of Directors of the Surviving Corporation in compliance with applicable
laws.

     If any certificate for shares of ManTech Delaware Common Stock is to be
issued in a name other than that in which the certificate surrendered in
exchange therefor is registered, it shall be a condition of issuance thereof
that the certificate so surrendered shall be properly endorsed and otherwise in
proper form for transfer, that such transfer otherwise be proper and that the
person requesting such transfer pay to ManTech Delaware or any transfer or other
taxes payable by reason of issuance of such new certificate in a name other than
that of the registered holder of the certificate surrendered or establish to the
satisfaction of ManTech Delaware that such tax has been paid or is not payable.

4.   GENERAL

     4.1. FURTHER ASSURANCES. From time to time, as and when required by ManTech
Delaware or by its successors or assigns, there shall be executed and delivered
on behalf of ManTech New Jersey such deeds and other instruments, and there
shall be taken or caused to be taken by ManTech Delaware and ManTech New Jersey
such further and other actions, as shall be appropriate or necessary in order to
vest or perfect in or conform of record or otherwise by ManTech Delaware the
title to and possession of all the property, interests, assets, rights,
privileges, immunities, powers, franchises and authority of ManTech New Jersey
and otherwise to carry out the purposes of this Agreement, and the officers and
directors of ManTech Delaware are fully authorized in the name and on behalf of
ManTech New Jersey or otherwise to take any and all such action and to execute
and deliver any and all such deeds and other instruments.

     4.2. ABANDONMENT. At any time before the filing of this Agreement with the
Secretary of State of the State of Delaware, this Agreement may be terminated
and the Merger may be abandoned for any reason whatsoever by the Board of
Directors of either ManTech New Jersey or ManTech Delaware, or both,
notwithstanding the approval of this Agreement by the shareholders of ManTech
New Jersey or by the sole stockholder of ManTech Delaware, or by both.

     4.3. AMENDMENT. The Boards of Directors of the Constituent Corporations may
amend this Agreement at any time prior to the filing of this Agreement (or
certificate in lieu thereof) with the Secretaries of State of the States of New
Jersey and Delaware, provided that an amendment made subsequent to the adoption
of this Agreement by the stockholders of either Constituent Corporation shall


                                        4



not: (1) alter or change the amount or kind of shares, securities, cash,
property and/or rights to be received in exchange for or on conversion of all or
any of the shares of any class or series thereof of such Constituent
Corporation, (2) alter or change any term of the Certificate of Incorporation of
the Surviving Corporation to be effected by the Merger, or (3) alter or change
any of the terms and conditions of this Agreement if such alteration or change
would adversely affect the holders of any class of shares or series thereof of
such Constituent Corporation.

     4.4. REGISTERED OFFICE. The registered office of the Surviving Corporation
in the State of Delaware is located at 1209 Orange Street, in the City of
Wilmington 19801, County of New Castle, and the name of its registered agent at
this address is The Corporation Trust Company.

     4.5. AGREEMENT. Executed copies of this Agreement will be on file at the
principal place of business of the Surviving Corporation, 12015 Lee Jackson
Highway, Fairfax, VA 22033-3300, and copies thereof will be furnished to any
stockholder of either Constituent Corporation, upon request and without cost.

     4.6. GOVERNING LAW. This Agreement shall in all respects be construed,
interpreted and enforced in accordance with and governed by the laws of the
State of Delaware and, so far as applicable, the merger provisions of the New
Jersey Business Corporation Act.

     4.8. COUNTERPARTS. In order to facilitate the filing and recording of this
Agreement, the same may be executed in any number of counterparts, each of which
shall be deemed to be an original and all of which together shall constitute one
and the same instrument.

                                        5




IN WITNESS WHEREOF, this Agreement, having first been approved by resolutions of
the Boards of Directors of ManTech Delaware and ManTech New Jersey, is hereby
executed on behalf of each of such two corporations and attested by their
respective officers thereunto duly authorized.

                                     MANTECH INTERNATIONAL CORPORATION,

                                     a Delaware corporation

                                     By:
                                     -------------------------------------------
                                     George J. Pedersen, Chairman President and
                                     Chief Executive Officer

ATTEST:

- --------------------
Jo-An J. Free, Secretary

                                     MANTECH INTERNATIONAL CORPORATION,
                                     a New Jersey corporation

                                     By:
                                     -------------------------------------------
                                     George J. Pedersen, Chairman, President and
                                     Chief Executive Officer

ATTEST:

- --------------------
Jo-An J. Free, Secretary

                                        6



                                                                     Exhibit 3.1

                              AMENDED AND RESTATED
                          CERTIFICATE OF INCORPORATION
                                       OF
                        MANTECH INTERNATIONAL CORPORATION

     ManTech International Corporation, a corporation organized and existing
under and by virtue of the laws of the State of Delaware (the "Corporation"),
does hereby certify as follows:

1.   The name of the Corporation is ManTech International Corporation. The
     original Certificate of Incorporation of the Corporation was filed with the
     Secretary of State of the State of Delaware on November 14, 2001.

2.   Pursuant to sections 242 and 245 of the Delaware General Corporation Law,
     this Amended and Restated Certificate of Incorporation restates and
     integrates and further amends the provisions of the Corporation's
     Certificate of Incorporation.

3.   The terms and provisions of this Amended and Restated Certificate of
     Incorporation have been duly approved by written consent of the required
     number of shares of outstanding stock of the Corporation pursuant to
     subsection 228(a) of the Delaware General Corporation Law and written
     notice pursuant to subsection 228(d) of the Delaware General Corporation
     Law has been given to those stockholders whose written consent has not been
     obtained.

4.   The text of the Amended and Restated Certificate of Incorporation reads in
     its entirety as follows:

     FIRST. Name. The name of the Corporation is ManTech International
Corporation.

     SECOND. Address. The registered office of the Corporation in the State of
Delaware is located at 1209 Orange Street, in the City of Wilmington, County of
New Castle. The name of the registered agent of the Corporation at such address
is The Corporation Trust Company.

     THIRD. Purposes. The purpose for which the Corporation is organized is to
engage in any and all lawful act or activity for which corporations may be
organized under the Delaware General Corporation Law.

     FOURTH. Capital Stock.

     4.1. Authorized Capital Stock. The total number of shares of stock that the
Corporation has authority to issue is Two hundred twenty million (220,000,000),
consisting of:

          (a) One hundred fifty million (150,000,000) shares of Class A Common
Stock, par value $0.01 per share (the "Class A Common Stock");

          (b) Fifty million (50,000,000) shares of Class B Common Stock, par
value of $0.01 per share (the "Class B Common Stock"); and

          (c) Twenty million (20,000,000) shares of Preferred Stock, par value
of $0.01 per share (the "Preferred Stock").


draft 12/21/01



          The Class A Common Stock together with the Class B Common Stock is
referred to collectively as the "Common Stock.

     4.2. Terms of Common Stock. All shares of Common Stock will be identical in
all respects and will entitle the holders thereof to the same rights and
privileges, except as otherwise provided herein.

          (a) Voting Rights. Except as otherwise provided in these Amended and
Restated Articles of Incorporation or by applicable law, the holders of Class A
Common Stock and Class B Common Stock shall vote together as a single class with
respect to all matters submitted to a vote of holders of shares of Common Stock,
subject to any voting rights which may be granted to holders of any Preferred
Stock. The holders of shares of Common Stock shall have the following voting
rights:

               (1) Each share of Class A Common Stock shall entitle the holder
thereof to one (1) vote in person or by proxy on all matters submitted to a vote
of the stockholders of the Corporation.

               (2) Each share of Class B Common Stock shall entitle the holder
thereof to ten (10) votes in person or by proxy on all matters submitted to a
vote of the stockholders of the Corporation, except with respect to any Going
Private Transaction (as such term is defined below), which shall be governed by
paragraph (k) of this Section 4.2.

          (b) Dividends. The holders of the Common Stock shall be entitled to
participate ratably, on a share-for-share basis as if all shares of Common Stock
were of a single class, in such dividends, whether in cash, stock or otherwise,
as may be declared by the Board of Directors from time to time out of funds of
the Corporation legally available therefor; provided, however, that any
dividends payable in shares of Common Stock (or payable in rights to subscribe
for or purchase shares of Common Stock or securities or indebtedness convertible
into or exchangeable for shares of Common Stock) shall be declared and paid at
the same rate on each class of Common Stock and only in shares of Class A Common
Stock (or rights to subscribe for or to purchase shares of Class A Common Stock
or securities or indebtedness convertible into or exchangeable for shares of
Class A Common Stock) to holders of Class A Common Stock and in shares of Class
B Common Stock (or rights to subscribe for or to purchase shares of Class B
Common Stock or securities or indebtedness convertible into or exchangeable for
shares of Class B Common Stock) to holders of Class B Common Stock.

          (c) Issuance of Class B Common Stock. After the IPO Date, the
Corporation shall not issue or sell any shares of Class B Common Stock or any
securities (including, without limitation, any rights, options, warrants or
other securities) convertible into or exchangeable or exercisable for shares of
Class B Common Stock to any person other than (1) issuance of a certificate or
certificates in the name of a person who is an owner of record of Class B Common
Stock on the IPO Date (an "Initial Holder") or a Permitted Transferee (as
defined in paragraph (j) of this Section 4.2) representing shares of Class B
Common Stock that are outstanding on the IPO Date (regardless of whether such
shares are held by the Initial Holder or Permitted Transferee on the IPO Date),
or (2) issuances or sales upon a stock split, stock dividend, rights offering or
other transaction or event in connection with which Class B Common Stock is
expressly required or permitted to be issued or sold under this Certificate of
Incorporation. For the purposes of this Article Four, the term "IPO Date" shall
mean the third business day before the closing date of any initial public
offering of the Class A Common Stock in a firm commitment underwritten offering
that is registered with the U.S. Securities and Exchange Commission. Any
issuance or sale of


draft 12/21/01



shares of Class B Common Stock (or securities convertible into, or exchangeable
or exercisable for, shares of Class B Common Stock) in violation of this Section
4.2(c) shall be null and void ab initio.

          (d) Voluntary Conversion of Class B Common Stock.

               (1) The holder of each share of Class B Common Stock shall have
the right at any time, or from time to time, at such holder's option, to convert
such share into one fully paid and nonassessable share of Class A Common Stock
on and subject to the terms and conditions hereinafter set forth.

               (2) In order to exercise the conversion privilege, the holder of
any shares of Class B Common Stock to be converted shall present and surrender
the certificate or certificates representing such shares during usual business
hours at any office or agency of the Corporation maintained for the transfer of
Class B Common Stock and shall deliver a written notice of the election of the
holder to convert the shares represented by such certificate or any portion
thereof specified in such notice. Such notice shall also state the name or names
(with address) in which the certificate or certificates for shares of Class A
Common Stock issuable on such conversion shall be registered. If required by the
Corporation, any certificate for shares surrendered for conversion shall be
accompanied by instruments of transfer, in form satisfactory to the Corporation,
duly executed by the holder of such shares or his duly authorized
representative. Each conversion of shares of Class B Common Stock shall be
deemed to have been effected on the date (the "Conversion Date") on which the
certificate or certificates representing such shares shall have been surrendered
and such notice and any required instruments of transfer shall have been
received as aforesaid, and the person or persons in whose name or names any
certificate or certificates for shares of Class A Common Stock shall be issuable
on such conversion shall be, for the purpose of receiving dividends and for all
other corporate purposes whatsoever, deemed to have become the holder or holders
of record of the shares of Class A Common Stock represented thereby on the
Conversion Date.

               (3) As promptly as practicable after the presentation and
surrender for conversion, as herein provided, of any certificate for shares of
Class B Common Stock, the Corporation shall issue and deliver at such office or
agency, to or upon the written order of the holder thereof, certificates for the
number of shares of Class A Common Stock issuable upon such conversion. Subject
to the provisions of paragraph (e) of this Section 4.2, in case any certificate
for shares of Class B Common Stock shall be surrendered for conversion of only a
part of the shares represented thereby, the Corporation shall deliver at such
office or agency, to or upon the written order of the holder thereof, a
certificate or certificates for the number of shares of Class B Common Stock
represented by such surrendered certificate that are not being converted.

          (e) Automatic Conversion of Class B Common Stock upon Certain Events.

               (1) No record or beneficial owner of shares of Class B Common
Stock may transfer, and the Corporation shall not register the transfer of, such
shares of Class B Common Stock, whether by sale, assignment, gift, bequest,
appointment, or otherwise, except to a "Permitted Transferee" as provided
herein.

               (2) Notwithstanding anything to the contrary set forth herein,
any Class B Holder may pledge such holder's shares of Class B Common Stock to a

                                        3
draft 12/21/01



financial institution pursuant to a bona fide pledge of such shares as
collateral security for indebtedness due to such financial institution, provided
that such shares shall not be transferred to or registered in the name of the
financial institution and shall remain subject to the provisions of this
paragraph (e). In the event of foreclosure or other similar action by the
financial institution, such pledged shares of Class B Common Stock may only be
transferred to a Permitted Transferee of the pledgor or converted into shares of
Class A Common Stock, as the pledgor may elect; provided, however, that if
within ten business days after such foreclosure or similar action any such
converted shares are returned to the pledgor or a permitted transferee, such
shares shall convert automatically into shares of Class B Common Stock.

               (3) Any purported transfer of shares of Class B Common Stock not
permitted hereunder shall result in the conversion of the transferee's shares of
Class B Common Stock into shares of Class A Common Stock, effective on the date
on which certificates representing such shares are presented for transfer on the
stock transfer record books of the Corporation; provided, however, that if the
Corporation should determine that such shares were not so presented for transfer
within 20 days after the date of such sale, transfer, assignment, or other
disposition, the transfer date shall be the actual date of such sale, transfer,
assignment, or other disposition as determined in good faith by the Board of
Directors or its appointed agent. The Corporation may, as a condition to the
transfer or the registration of transfer of shares of Class B Common Stock to a
purported Permitted Transferee, require the furnishing of such affidavits or
other proof as it deems necessary to establish that such transferee is a
Permitted Transferee. If no indication to the contrary is supplied at the time
shares of Class B Common Stock are presented for transfer, the transfer shall be
presumed by the Corporation to be a transfer to a person other than the
Permitted Transferee.

               (4) Shares of Class B Common Stock shall not be registered in
"street" or "nominee" names; provided, however, certificates representing shares
of Class B Common Stock may be registered in the name of a nominee which is a
"Permitted Transferee." The Corporation shall note on the certificates
representing the shares of Class B Common Stock that there are restrictions on
transfer and registration of transfer imposed by paragraphs (d) and (e) of this
Section 4.2.

               (5) Notwithstanding anything to the contrary set forth herein,
(i) upon the death or permanent mental incapacity of Mr. Pedersen, all shares of
Class B Common Stock shall be converted automatically into shares of Class A
Common Stock on a share-for-share basis, and stock certificates formerly
representing such shares of Class B Common Stock shall thereupon and thereafter
be deemed to represent a like number of shares of Class A Common Stock; and (ii)
upon a Permitted Transferee ceasing to qualify as a Permitted Transferee (and
subject to the operation of subparagraph (j)(9) of this Section 4.2) all shares
of Class B Common Stock held by it shall be converted automatically into shares
of Class A Common Stock on a share-for-share basis, and stock certificates
formerly representing such shares of Class B Common Stock shall thereupon and
thereafter be deemed to represent a like number of shares of Class A Common
Stock.

          (f) Further Provisions Regarding Conversions.

               (1) Any dividends declared and not paid on shares of Common Stock
prior to their conversion as provided above shall be paid, on the payment date,
to the holder or holders entitled thereto on the record date for such dividend
payment, notwithstanding such conversion; provided, however, that such holder or
holders shall not be entitled to receive the corresponding dividends declared
but not paid on the shares of Common Stock issuable upon such conversion.

                                        4
draft 12/21/01



               (2) In the event of a reclassification or other similar
transaction as a result of which the shares of Class A Common Stock are
converted into another security, then a holder of Class B Common Stock shall be
entitled to receive upon conversion the amount of such security that such holder
would have received if such conversion had occurred immediately prior to the
record date of such reclassification or other similar transaction.

               (3) Shares of the Class B Common Stock converted into Class A
Common Stock shall be retired and shall resume the status of authorized but
unissued shares of Class B Common Stock.

               (4) The issuance of certificates for shares of Class A Common
Stock issuable upon the conversion of shares of Class B Common Stock by the
registered holder thereof shall be made without charge to the converting holder
for any tax imposed on the Corporation in respect of the issue thereof. The
Corporation shall not, however, be required to pay any tax that may be payable
with respect to any transfer involved in the issue and delivery of any
certificate in a name other than that of the registered holder of the shares
being converted, and the Corporation shall not be required to issue or deliver
any such certificate unless and until the person requesting the issue thereof
shall have paid to the Corporation the amount of such tax or has established to
the satisfaction of the Corporation that such tax has been paid.

          (g) Reservation of Shares. The Corporation shall at all times reserve
and keep available out of its authorized but unissued shares of Class A Common
Stock, solely for the purpose of effecting the conversions provided for herein,
such number of shares of Class A Common Stock as shall from time to time be
sufficient to effect the conversions provided for herein and shall take all such
corporate action as may be necessary to assure that such shares of Class A
Common Stock shall be validly issued, fully paid and non-assessable upon
conversion of all of the outstanding shares of Class B Common Stock; moreover,
if at any time the number of authorized but unissued shares of Class A Common
Stock shall not be sufficient to effect the conversions provided for herein, the
Corporation shall take such corporate action as may be necessary to increase its
authorized but unissued shares of Class A Common Stock to such number of shares
as shall be sufficient for such purpose.

          (h) Adjustments for Stock Splits and Stock Dividends. The Corporation
shall treat the shares of Common Stock identically in respect of any
subdivisions or combinations (for example, if the Corporation effects a
two-for-one stock split with respect to the Class A Common Stock, it shall at
the same time effect a two-for-one stock split with respect to the Class B
Common Stock).

          (i) Mergers, Consolidation, Etc. In the event that the Corporation
shall enter into any consolidation, merger, combination or other transaction in
which shares of Common Stock are exchanged for or changed into other stock or
securities, cash and/or any other property, then, and in such event, the shares
of each class of Common Stock shall be exchanged for or changed into (1) the
same amount of stock, securities, cash and/or any other property, as the case
may be, into which or for which each share of any other class of Common Stock is
exchanged or changed; provided, however, that if shares of Common Stock are
exchanged for or changed into shares of capital stock, such shares so exchanged
for or changed into may differ to the extent and only to the extent that the
Class A Common Stock and the Class B Common Stock differ as provided herein; or
(2) if holders of each class of Common Stock are to receive different
distributions of stock, securities, cash and/or any other property, either (i)
holders of Class A Common Stock shall receive an amount of stock, securities,
cash and/or

                                        5
draft 12/21/01



property per share having a value, as determined by an independent investment
banking firm of national reputation selected by the Board of Directors, greater
than or equal to the value per share into which or for which each share of Class
B Common Stock is exchanged or changed, or (ii) holders of Class A Common Stock
and holders of Class B Common Stock shall receive such stock, securities, cash
and/or property per share as shall be provided for pursuant to a transaction
approved by the holders of a majority of Class A Common Stock and by the holders
of a majority of Class B Common Stock, each voting separately as a class.

          (j) Permitted Transferee. For purposes of this Certificate of
Incorporation, the term "Permitted Transferee" shall mean:

               (1) In the case of a holder of record of the Class B Common Stock
(the "Class B Holder") who is a natural person and the beneficial owner of the
shares of Class B Common Stock to be transferred, Permitted Transferees shall
include only the following:

                    (A) the spouse of such Class B Holder, any lineal descendant
     of a grandparent of such Class B Holder, or any spouse of such lineal
     descendent (herein collectively referred to as "such Class B Holder's
     Family Members");

                    (B) the trustee or trustees of a trust (including a voting
     trust) for the sole benefit of such Class B Holder and/or one or more of
     such Class B Holder's Family Members, except that such trust may also grant
     a general or special power of appointment to one or more of such Class B
     Holder's Family Members and may permit trust assets to be used to pay
     taxes, legacies, and other obligations of the Trust or the estates of one
     or more of such Class B Holder's Family Members payable by reason of the
     death of any of such Family Members; provided, however, if at any time such
     trust ceases to meet the requirements of this subparagraph (ii), all shares
     of Class B Common Stock then held by such trustee or trustees shall
     immediately and automatically, without further act or deed on the part of
     the Corporation or any person, be converted into Class A Common Stock on a
     share-for-share basis, and stock certificates formerly representing such
     shares of Class B Common Stock shall thereupon and thereafter be deemed to
     represent a like number of shares of Class A Common Stock;

                    (C) a corporation or similar entity wholly owned by such
     Class B Holder and/or such Class B Holder's Family Members or a partnership
     or similar entity in which all of the partners are, and all of the
     partnership interests are owned by, such Class B Holder and/or such Class B
     Holder's Family Members provided that if by reason of any change in the
     ownership of such stock or partners or partnership interests, such
     corporation or partnership would no longer qualify as a Permitted
     Transferee of such Class B Holder, all shares of Class B Common Stock then
     held by such corporation or partnership shall immediately and
     automatically, without further act or deed on the part of the corporation
     or any other person, be converted into shares of Class A Common Stock on a
     share-for-share basis, and stock certificates formerly representing such
     shares of Class B Common Stock shall thereupon and thereafter be deemed to
     represent a like number of shares of Class A Common Stock;

                    (D) an organization established by the Class B Holder and/or
     such Class B Holder's Family Members, contributions to which are deductible
     for federal income, estate, or gift tax purposes (a "Charitable
     Organization") and a majority of whose governing board at all

                                        6
draft 12/21/01



     times consists of the Class B Holder and/or one or more of the Permitted
     Transferees of such Class B Holder, or any successor to such Charitable
     Organization meeting such definition; provided that if by reason of any
     change in the composition of the governing board of such Charitable
     Organization, such Charitable Organization shall no longer qualify as a
     Permitted Transferee of such Class B Holder, all shares of Class B Common
     Stock then held by such Charitable Organization shall immediately and
     automatically, without further act or deed on the part of the Corporation
     or any other person, be converted into shares of Class A Common Stock on a
     share-for-share basis, and stock certificates formerly representing such
     shares of Class B Common Stock shall thereupon and thereafter be deemed to
     represent the like number of shares of Class A Common Stock; and

                    (E) the executor, administrator, or personal representative
     of the estate of a deceased Class B Holder or guardian or conservator of a
     Class B Holder adjudged disabled or incompetent by a court of competent
     jurisdiction, acting in his capacity as such.

               (2) In the case of a Class B Holder who is the executor or
administrator of the estate of a deceased Class B Holder or guardian or
conservator of the estate of a disabled or incompetent Class B Holder, Permitted
Transferees shall include only a Permitted Transferee of such deceased,
disabled, or incompetent Class B Holder.

               (3) In the case of a Class B Holder holding the shares of Class B
Common Stock as trustee pursuant to a trust, Permitted Transferees shall include
only the following:

                    (A) the person who contributed such shares to such trust and
     any Permitted Transferee of such person, determined in accordance with
     paragraph (j)(1) of this Section 4.2 above; and

                    (B) any successor trustee of such trust who is described in
     the immediately preceding subparagraph (j)(3)(A).

               (4) In the case of a Class B Holder that is a partnership or
similar entity, Permitted Transferees shall include only:

                    (A) any partner of such partnership who was also a partner
     of such partnership on the IPO Date;

                    (B) any person transferring shares of Class B Common Stock
     to such partnership after the IPO Date (to the extent of the number of
     shares of Class B Common Stock transferred by the transferor to such
     partnership); and

                    (C) any Permitted Transferee of such person referred to in
     subparagraph (j)(4)(A) or (j)(4)(B) above (not in excess of the number of
     shares that such person is entitled to receive pursuant to this
     subparagraph (j)(4)).

               (5) In the case of a Class B Holder that is a corporation or
similar entity, Permitted Transferees shall include only:

                                       7
draft 12/21/01



                    (A) any stockholder of such corporation on the IPO Date who
     receives shares of Class B Common Stock pro rata to his stock ownership in
     such corporation through a dividend or a distribution on or upon redemption
     of the shares of such corporation;

                    (B) any person transferring shares of Class B Common Stock
     to such corporation after the IPO Date (to the extent of the number of
     shares of Class B Common Stock transferred by the transferor to such
     corporation); and

                    (C) any Permitted Transferee of such stockholder or person
     referred to in subparagraph (j)(5)(A) or (j)(5)(B) above (not in excess of
     the number of shares that such stockholder or person is entitled to receive
     pursuant to this subparagraph (j)(5)).

               (6) An employee benefit plan sponsored by the Corporation or any
of its affiliates.

               (7) Any Initial Holder.

               (8) For purposes of this Section 4.2(j):

                    (A)  The relationship of any person that is derived by or
                         through legal adoption shall be considered a natural
                         one;

                    (B)  Each joint owner of shares of Class B Common Stock
                         shall be considered a Class B Holder of such shares;

                    (C)  A minor for whom shares of Class B stock are held
                         pursuant to a Uniform Gifts to Minors Act or similar
                         law shall be considered a Class B Holder of such
                         shares; and

                    (D)  Unless otherwise specified, the term "person" means
                         both natural person and legal entities.

               (9) Notwithstanding the foregoing, in the event that any
transferee of Class B Common Stock is not at the time of transfer or thereafter
ceases to qualify as a Permitted Transferee, and within ten business days after
the Corporation notifies such person that it has concluded that such person is
not or has ceased to qualify as a Permitted Transferee and the bases for such
conclusion, such person transfers the shares of Class B Common Stock to a
Permitted Transferee, demonstrates that it is a Permitted Transferee or takes
appropriate action so that it qualifies as a Permitted Transferee, then
notwithstanding anything else in this Section 4.2, the shares of Class B Common
Stock held by such person that converted automatically into shares of Class A
Common Stock as a result of such person not being or ceasing to qualify as a
Permitted Transferee shall convert back to Class B Common Stock.

          (k) Going Private Transaction. With respect to any Going Private
Transaction, the holders of shares of Class A Common Stock and Class B Common
Stock shall vote together as a single class, with each share of Class A Common
Stock and each share of Class B Common Stock entitling the holder thereof to one
(1) vote. For purposes of this Section 4.2, the term "Going Private Transaction"
shall mean any transaction between the Corporation and (i) an Initial Holder,
(ii) any Affiliate of an Initial Holder, or (iii) any group including an Initial
Holder or Affiliates of an Initial Holder where the

                                       8
draft 12/21/01



participation of such person or persons in such group would cause the
transaction to be deemed a "Rule 13e-3 Transaction," as such term is defined in
Rule 13e-3(a)(3), 17 C.F.R. ss. 240.13e-3(a)(3), as amended from time to time,
promulgated under the Securities Exchange Act of 1934, as amended, provided
however, that the term "affiliate" as used in Rule 13e-3(a)(3)(i) shall be
deemed to include an Affiliate, as defined herein. For purposes hereof, an
"Affiliate" of a person shall mean (i) any individual or entity who or that,
directly or indirectly, controls, is controlled by, or is under common control
with such person, and (ii) the spouse, a child or grandchild (by blood, adoption
or marriage) of such person, or any trust for the benefit of one or more of the
foregoing.

     4.3. Provisions Relating to Preferred Stock.

          (a) Any Preferred Stock not previously designated as to series may be
issued from time to time in one or more series pursuant to a resolution or
resolutions providing for such issue duly adopted by the Board of Directors
(authority to do so being hereby expressly vested in the Board), and such
resolution or resolutions shall also set forth the voting powers, full or
limited or none, of each such series of Preferred Stock and shall fix the
designations, preferences and relative, participating, optional or other special
rights and qualifications, limitations or restrictions of each such series of
Preferred Stock. The Board of Directors is authorized to alter the designation,
rights, preferences, privileges and restrictions granted to or imposed upon any
wholly unissued series of Preferred Stock and, within the limits and
restrictions stated in any resolution or resolutions of the Board of Directors
originally fixing the number of shares constituting any series of Preferred
Stock, to increase or decrease (but not below the number of shares of any such
series then outstanding) the number of shares of any such series subsequent to
the issue of shares of that series.

          (b) Each share of Preferred Stock issued by the Corporation, if
reacquired by the Corporation (whether by redemption, repurchase, conversion to
Common Stock or other means), shall upon such reacquisition resume the status of
authorized and unissued shares of Preferred Stock, undesignated as to series and
available for designation and issuance by the Corporation in accordance with the
immediately preceding paragraph.

     4.4. General. Subject to the foregoing provisions of this Certificate of
Incorporation, the Corporation may issue shares of its capital stock from time
to time for such consideration (not less than the par value thereof) as may be
fixed by the Board of Directors, which is expressly authorized to fix the same
in its absolute and uncontrolled discretion subject to the foregoing conditions,
or as otherwise provided by law. Shares so issued for which the consideration
shall have been paid or delivered to the Corporation shall be deemed fully paid
capital stock and shall not be liable to any further call or assessment thereon,
and the holders of such shares shall not be liable for any further payments in
respect of such shares.

     FIFTH. Board of Directors.

     5.1. Number of Directors. The number, and terms of the Board of Directors
of the Corporation and the procedures to elect directors, to remove directors,
and to fill vacancies in the Board of Directors shall be as stated in the Bylaws
of the Corporation (the "Bylaws").


                                        9
draft 12/21/01



     5.2. Powers of the Board of Directors. The business and affairs of the
Corporation shall be managed by or under the direction of the Board of
Directors. In furtherance, and not in limitation, of the powers conferred by the
laws of the State of Delaware, the Board of Directors is expressly authorized
to:

          (a) adopt, amend, alter, change or repeal Bylaws of the Corporation;
provided, however, that no Bylaw hereafter adopted shall invalidate any prior
act of the Corporation that would have been valid if such new Bylaws had not
been adopted;

          (b) subject to the Bylaws as from time to time in effect, determine
the rules and procedures for the conduct of the business of the Board of
Directors and the management and direction by the Board of Directors of the
business and affairs of the Corporation, including the power to designate and
empower committees of the Board of Directors, to elect, or authorize the
appointment of, and empower officers and other agents of the Corporation, and to
determine the time and place of, the notice requirements for, and the manner of
conducting, Board meetings, as well as other notice requirements for, and the
manner of taking, Board action; and

          (c) exercise all such powers and do all such acts as may be exercised
or done by the Corporation, subject to the provisions of the Delaware General
Corporation Law and this Certificate of Incorporation and Bylaws of the
Corporation.

     5.3. Preferred Stock. Notwithstanding the foregoing, whenever the holders
of any one or more classes or series of Preferred Stock issued by the
Corporation shall have the right, voting separately by class or series, to elect
directors at an annual or special meeting of stockholders, the election, term of
office, filling of vacancies and other features of such directorships shall be
governed by the terms of this Certificate of Incorporation applicable thereto.

     SIXTH. Liability of Directors.

     6.1. Limitation of Liability. No director of the Corporation shall be
personally liable to the Corporation or its stockholders for monetary damages
for breach of fiduciary duty as a director, provided that this provision shall
not eliminate or limit the liability of a director (a) for any breach of the
director's duty of loyalty to the Corporation or its stockholders, (b) for acts
or omissions not in good faith or which involve intentional misconduct or a
knowing violation of law, (c) under section 174 of the Delaware General
Corporation Law or (d) for any transaction from which the director derived any
improper personal benefits. If the Delaware General Corporation Law is amended
to authorize corporate action further eliminating or limiting the personal
liability of directors, then the liability of a director of the Corporation
shall be eliminated or limited to the fullest extent permitted by the Delaware
General Corporation Law, as so amended.

     6.2. Amendments. Any repeal or modification of Section 6.1 hereof by the
stockholders of the Corporation shall not adversely affect any right or
protection of a director of the Corporation existing at the time of such repeal
or modification.

     SEVENTH. Indemnification.

     7.1. Indemnity Undertaking. The Corporation shall indemnify any person who
is or was made, or is threatened to be made, a party to any Proceeding,
including, without limitation, an action by or in the right of the Corporation
to procure a judgment in its favor, by reason of the fact that such person


                                       10
draft 12/21/01



is or was a director or officer of the Corporation, or, at the request of the
Corporation, is or was serving as a director, officer, partner, venturer,
proprietor, trustee, employee, agent, or similar functionary of another foreign
or domestic corporation, partnership, joint venture, sole proprietorship, trust,
employee benefit plan, or other enterprise (an "Other Entity"), to the fullest
extent permitted under the Delaware General Corporation Law, as the same exists
or may hereafter be amended, against judgments, fines, penalties, excise taxes,
amounts paid in settlement and costs, charges and expenses (including attorneys'
fees, disbursements and other charges), except as provided in Section 7.3.
Without limiting the generality of the foregoing, to the extent permitted by
then applicable law, the grant of mandatory indemnification pursuant to this
Article VII shall extend to Proceedings involving the negligence of such Person.

     7.2. Advancement of Expenses. Except as provided in Section 7.3, the
Corporation shall reimburse or advance to any director or officer entitled to
indemnification hereunder the funds necessary for payment of expenses, including
attorneys' fees and disbursements, incurred in connection with any Proceeding,
in advance of the final disposition of such Proceeding; provided, however, that,
if required by the Delaware General Corporation Law, such expenses incurred by
or on behalf of any director or officer may be paid in advance of the final
disposition of a Proceeding only upon receipt by the Corporation of an
undertaking, by or on behalf of such director or officer, to repay any such
amount so advanced if it shall ultimately be determined by final judicial
decision from which there is no further right of appeal that such director or
officer is not entitled to be indemnified for such expenses.

     7.3. Actions against the Corporation. Notwithstanding anything to the
contrary in this Article VII, the Corporation shall not be obligated to
indemnify a director or officer or to advance expenses with respect to any claim
asserted by such person initially or by cross-claim, counter-claim, or
third-party claim, in any Proceeding against the Corporation, except for
Proceedings to enforce rights to indemnification (including rights to
advancement of expenses), unless, prior to such claim being asserted, the
assertion of such claim is approved by the directors of the Corporation by a
majority vote of a quorum of the Board of Directors or a committee thereof
established for such purpose.

     7.4. Rights Not Exclusive. The rights to indemnification and reimbursement
or advancement of expenses provided by, or granted pursuant to, this Article VII
shall not be deemed exclusive of any other rights to which a person seeking
indemnification or reimbursement or advancement of expenses may have or
hereafter be entitled under any statute, this Certificate of Incorporation, the
Bylaws, any agreement, any vote of stockholders or disinterested directors or
otherwise, both as to action in his or her official capacity and as to action in
another capacity while holding such office.

     7.5. Continuation of Benefits. The rights to indemnification and
reimbursement or advancement of expenses provided by, or granted pursuant to,
this Article VII shall continue as to a person who has ceased to be a director
or officer (or other person indemnified hereunder) and shall inure to the
benefit of the heirs, executors, administrators, and personal representatives of
such person.

     7.6. Insurance. The Corporation shall have power to purchase and maintain
insurance on behalf of any person who is or was a director, officer, employee or
agent of the Corporation, or is or was serving at the request of the Corporation
as a director, officer, employee or agent of an Other Entity, against any
liability asserted against such person and incurred by such person in any such
capacity, or arising out of such person's status as such, whether or not the
Corporation would have the power to indemnify such person against such liability
under the provisions of this Article VII, this Certificate of


                                       11
draft 12/21/01



Incorporation or under section 145 of the Delaware General Corporation Law or
any other provision of law.

     7.7. Binding Effect. The provisions of this Article VII shall be a contract
between the Corporation, on the one hand, and each director and officer who
serves in such capacity at any time while this Article VII is in effect, on the
other hand, pursuant to which the Corporation and each such director or officer
intend to be, and shall be, legally bound. No repeal or modification of this
Article VII shall affect any rights or obligations with respect to any state of
facts then or theretofore existing or thereafter arising or any Proceeding
theretofore or thereafter brought or threatened based in whole or in part upon
any such state of facts.

     7.8. Procedural Rights. The rights to indemnification and reimbursement or
advancement of expenses provided by, or granted pursuant to, this Article VII
shall be enforceable by any person entitled to such indemnification or
reimbursement or advancement of expenses in any court of competent jurisdiction.
If a claim for indemnification or advancement of expenses hereunder is not paid
in full by the Corporation within sixty (60) days after a written claim has been
received by the Corporation, the claimant may at any time thereafter bring suit
against the Corporation to recover the unpaid amount of the claim, and if
successful in whole or in part, the claimant shall also be entitled to be paid
the expenses of prosecuting such claim. The burden of proving that such
indemnification or reimbursement or advancement of expenses is not appropriate
shall be on the Corporation. Neither the failure of the Corporation (including
its Board of Directors, its independent legal counsel and its stockholders) to
have made a determination prior to the commencement of such action that such
indemnification or reimbursement or, except as otherwise provided in Section
7.3, advancement of expenses is proper in the circumstances nor an actual
determination by the Corporation (including its Board of Directors, its
independent legal counsel and its stockholders) that such person is not entitled
to such indemnification or reimbursement or advancement of expenses shall
constitute a defense to the action or create a presumption that such person is
not so entitled, except as otherwise provided in Section 7.3. Such a person
shall also be indemnified for any expenses incurred in connection with
successfully establishing his or her right to such indemnification or
reimbursement or advancement of expenses, in whole or in part, in any such
Proceeding.

     7.9. Indemnification of Others. The Corporation may additionally indemnify
any employee or agent of the Corporation to the fullest extent permitted by law.

     7.10. Definition of "Proceeding." As used herein, the term "Proceeding"
means any threatened, pending, or completed action, suit, or proceeding, whether
civil, criminal, administrative, arbitrative, or investigative, any appeal in
such an action, suit, or proceeding, and any inquiry or investigation that could
lead to such an action, suit, or proceeding.

     EIGHTH. Meetings of Stockholders.

     8.1. No Action by Written Consent. The stockholders of the Corporation
entitled to take action on any matter may act solely at a meeting of
stockholders duly called and held in accordance with law and this Certificate of
Incorporation and the Bylaws and may not act by a consent or consents in
writing.


                                       12
draft 12/21/01



     8.2. Meetings of Stockholders. The annual meeting of stockholders for the
election of directors and the transaction of such other business as may be
brought before such meeting in accordance with this Certificate of Incorporation
and the Bylaws shall be held at such hour and on such business day in each year
as may be determined by resolution adopted by the affirmative vote of a majority
of the Board. Except as otherwise required by law, special meetings of
stockholders may be called by the Secretary at the direction of: (a) the
affirmative vote of a majority of the Board, (b) the Chairman of the Board of
Directors, (c) the Chief Executive Officer, or (d) the holders of shares
representing a majority of the voting power of the outstanding Common Stock
entitled to vote at such meeting of stockholders. Annual and special meetings of
stockholders shall not be called or held otherwise than as herein provided.

     8.3. Written Ballot. Elections of directors need not be written ballot
unless the bylaws of the Corporation shall so provide.


                                       13
draft 12/21/01




     IN WITNESS WHEREOF, the corporation has caused this Certificate of
Incorporation to be signed by its Chairman, Chief Executive Officer and
President and attested to by its Assistant Secretary on this ____ day of
January, 2002.


                                          ------------------------
                                          George J. Pedersen

Attested:



- -------------------------------------
Matthew P. Galaski
Assistant Secretary

                                       14
draft 12/21/01



                                                                     Exhibit 3.2

                              AMEDNED AND RESTATED

                                     BYLAWS

                                       OF

                        MANTECH INTERNATIONAL CORPORATION
                            (a Delaware corporation)

                     Adopted and Effective January __, 2002

         --------------------------------------------------------------

                                    ARTICLE I

                                     OFFICES

     1.1. Registered Office. The registered office of the Corporation shall be
fixed in the Certificate of Incorporation of the Corporation.

     1.2. Other Offices. The principal office of the Corporation shall be
located in the City and Jurisdiction within or without the State of Delaware as
the Board of Directors may, from time to time, determine. The Corporation may
also have offices at such other places both within and without the State of
Delaware as the Board of Directors may from time to time determine.

                                   ARTICLE II

                                  STOCKHOLDERS

     2.1. Certificates Representing Stock.

          (a) Form and Execution of Certificates. Certificates representing
shares of stock or any bond, debenture or other corporate securities of the
Corporation shall be in such form as is consistent with the Certificate of
Incorporation and applicable law, and shall be signed by, or in the name of, the
Corporation by the Chairman of the Board of Directors, the Chief Executive
Officer, or by the President or a Vice President and by the Treasurer or an
Assistant Treasurer or the Secretary or an Assistant Secretary of the
Corporation. Any or all of the signatures on any such certificate may be a
facsimile. In case any officer, transfer agent, or registrar who has signed or
whose facsimile signature has been placed upon a certificate shall have ceased
to be such officer, transfer agent, or registrar before such certificate is
issued, it may be issued by the Corporation with the same effect as if he were
such officer, transfer agent, or registrar at the date of issue.

          (b) Legends and Restrictions. Whenever the Corporation shall be
authorized to issue more than one class of stock or more than one series of any
class of stock, and whenever the Corporation shall issue any shares of its stock
as partly paid stock, the certificates

draft 10/13/01



representing shares of any such class or series or of any such partly paid stock
shall set forth thereon the statements prescribed by the Delaware General
Corporation Law. Any restrictions on the transfer or registration of transfer of
any shares of stock of any class or series shall be noted conspicuously on the
certificate representing such shares.

          (c) Lost Certificates. The Board of Directors may direct a new
certificate to be issued in place of any certificate theretofore issued by the
Corporation alleged to have been lost, stolen or destroyed, upon the making of
an affidavit of that fact by the person claiming the certificate of stock to be
lost, stolen or destroyed. When authorizing such issue of a new certificate, the
Board of Directors may, in its discretion and as a condition precedent to the
issuance thereof, require the owner of such lost, stolen or destroyed
certificate, or his legal representative, to advertise the same in such manner
as the Board of Directors shall require and/or to give the Corporation a bond in
such sum as it may direct as indemnity against any claim that may be made
against the Corporation with respect to the certificate alleged to have been
lost, stolen or destroyed.

     2.2. Uncertificated Shares. Subject to any conditions imposed by the
Delaware General Corporation Law, the Board of Directors of the Corporation may
provide by resolution or resolutions that some or all of any or all classes or
series of the stock of the Corporation shall be uncertificated shares. Within a
reasonable time after the issuance or transfer of any uncertificated shares, the
Corporation shall send to the registered owner thereof any written notice
prescribed by the Delaware General Corporation Law.

     2.3. Stock Transfers; Registered Stockholders. Upon compliance with
provisions restricting the transfer or registration of transfer of shares of
stock, if any, transfers or registration of transfers of shares of stock of the
Corporation shall be made only on the stock ledger of the Corporation by the
registered holder thereof or by his attorney thereunto authorized by power of
attorney duly executed and filed with the Secretary of the Corporation or with a
transfer agent or a registrar, if any, and, in the case of shares represented by
certificates, on surrender of the certificate or certificates for such shares of
stock properly endorsed and the payment of all taxes due thereon. The
Corporation shall be entitled to recognize the exclusive right of a person
registered on its books as the owner of shares to receive dividends, and to vote
as such owner, and shall not be bound to recognize any equitable or other claim
to or interest in such share or shares on the part of any other person, whether
or not it shall have express or other notice thereof, except as otherwise
provided by law.

     2.4. Record Date for Stockholders.

          (a) Notice and Voting. In order that the Corporation may determine the
stockholders entitled to notice of or to vote at any meeting of stockholders or
any adjournment thereof, the Board of Directors may fix a record date, which
record date shall not precede the date upon which the resolution fixing the
record date is adopted by the Board of Directors, and which record date shall
not be more than sixty nor less than ten days before the date of such meeting.
If no record date is fixed by the Board of Directors, the record date for
determining stockholders entitled to notice of or to vote at a meeting of
stockholders shall be at the close of business on the day next preceding the day
on which notice is given, or, if notice is waived, at the close of business on
the day next preceding the day on which the meeting is held. A

                                        2
draft 10/13/01



determination of stockholders of record entitled to notice of or to vote at a
meeting of stockholders shall apply to any adjournment of the meeting; provided,
however, that the Board of Directors may fix a new record date for the adjourned
meeting.

          (b) Dividends and Other Rights. In order that the Corporation may
determine the stockholders entitled to receive payment of any dividend or other
distribution or allotment of any rights or the stockholders entitled to exercise
any rights in respect of any change, conversion, or exchange of stock, or for
the purpose of any other lawful action, the Board of Directors may fix a record
date, which record date shall not precede the date upon which the resolution
fixing the record date is adopted, and which record date shall be not more than
sixty days prior to such action. If no record date is fixed, the record date for
determining stockholders for any such purpose shall be at the close of business
on the day on which the Board of Directors adopts the resolution relating
thereto.

     2.5. Meaning of Certain Terms. As used herein in respect of the right to
notice of a meeting of stockholders or a waiver thereof or to participate or
vote thereat, as the case may be, the term "share" or "shares" or "share of
stock" or "shares of stock" or "stockholder" or "stockholders" refers to an
outstanding share or shares of stock and to a holder or holders of record of
outstanding shares of stock when the Corporation is authorized to issue only one
class of shares of stock, and said reference is also intended to include any
outstanding share or shares of stock and any holder or holders of record of
outstanding shares of stock of any class upon which or upon whom the Certificate
of Incorporation confers such rights where there are two or more classes or
series of shares of stock or upon which or upon whom the Delaware General
Corporation Law confers such rights notwithstanding that the Certificate of
Incorporation may provide for more than one class or series of shares of stock,
one or more of which are limited or denied such rights thereunder; provided,
however, that no such right shall vest in the event of an increase or a decrease
in the authorized number of shares of stock of any class or series which is
otherwise denied voting rights under the provisions of the Certificate of
Incorporation, except as any provision of law may otherwise require.

     2.6. Stockholder Meetings.

          (a) Place of Meetings. Meetings of stockholders may be held at such
place, either within or without the State of Delaware, and at such date and time
as the Board of Directors shall determine.

          (b) Annual Meetings. The Board of Directors shall call an annual
meeting (or a special meeting in lieu thereof) to elect directors and transact
such other business as may properly be brought before the meeting. Written
notice of the Annual Meeting, stating the place, date and time of the meeting,
shall be given to each stockholder entitled to vote at such meeting not less
than ten nor more than sixty days before the date of the meeting.

          (c) Special Meetings. Unless otherwise prescribed by law or by the
Certificate of Incorporation, Special Meetings of Stockholders, for any purpose
or purposes, shall be called by the Secretary at the direction of: (i) the
affirmative vote of a majority of the Board, (ii) the Chairman of the Board of
Directors, (iii) the Chief Executive Officer, or (iv) the holders of shares
representing a majority of the voting power of the outstanding Common Stock

                                        3
draft 10/13/01



entitled to vote at such meeting of stockholders. Any such request shall state
the purpose or purposes of the proposed meeting. Written notice of a Special
Meeting, stating the place, date and time of the meeting and purpose or purposes
for which the meeting is called, shall be given to each stockholder entitled to
vote at such meeting not less than ten nor more than sixty days before the date
of the meeting.

          (d) Stockholder List. The officer who has charge of the stock ledger
of the Corporation shall prepare and make, at least ten days before every
meeting of stockholders, a complete list of the stockholders, arranged in
alphabetical order, and showing the address of each stockholder and the number
of shares registered in the name of each stockholder. Such list shall be open to
the examination of any stockholder, for any purpose germane to the meeting
during the ten days prior to the meeting at the principal place of business of
the Corporation during ordinary business hours. The list shall also be produced
and kept at the time and place of the meeting during the whole time thereof; and
may be inspected by any stockholder who is present. The stock ledger shall be
the only evidence as to who are the stockholders entitled to examine the stock
ledger, the list required by this section or the books of the Corporation, or to
vote at any meeting of stockholders.

          (e) Nominations and Stockholder Business.

               (1) To be properly brought before an annual meeting, nominations
of persons for election to the Board of Directors of the Corporation and the
proposal of business to be considered by the stockholders at an annual meeting
of stockholders must be either (i) specified in the notice of meeting (or any
supplement thereto) given by or at the direction of the Board of Directors (or
any duly authorized committee thereof), (ii) otherwise properly brought before
the annual meeting by or at the direction of the Board of Directors (or any duly
authorized committee thereof), or (iii) otherwise brought before the annual
meeting by any stockholder of the Corporation who is a stockholder of record on
the date of the giving of the notice provided for in Section 2.6(b) of this
Article II, who is entitled to vote at the meeting and who complied with the
notice procedures set forth in this Section 2.6(e).

               (2) For nominations or other business to be properly brought
before an annual meeting by a stockholder pursuant to this Section 2.6(e), the
stockholder must have given timely notice thereof in writing to the Secretary of
the Corporation, and such business must be a proper subject for stockholder
action under the Delaware General Corporation Law. To be timely, a stockholder's
notice shall be delivered to the Secretary at the principal executive offices of
the Corporation not less than sixty (60) days nor more than one hundred and
twenty (120) days prior to the first anniversary of the date on which the
Corporation first mailed its proxy materials for the prior year's annual meeting
of stockholders; provided, however, that in the event that the date of the
annual meeting is advanced by more than thirty (30) days or delayed (other than
as a result of adjournment) by more than thirty (30) days from the anniversary
of the previous year's annual meeting, notice by the stockholder to be timely
must be delivered not later than the close of business on the later of the
sixtieth (60th) day prior to such annual meeting or the tenth (10th) day
following the day on which public announcement of the date of such meeting is
first made. Such stockholder's notice shall set forth (i) as to each person whom
the stockholder proposes to nominate for election or reelection as a director
all information relating to such person that is required to be disclosed in
solicitations of proxies for election of directors,

                                        4
draft 10/13/01



or is otherwise required, in each case pursuant to Regulation 14A under the
Securities Exchange Act of 1934, as amended (the "Exchange Act") (including such
person's written consent to being named in the proxy statement as a nominee and
to serving as a director if elected); (ii) as to any other business that the
stockholder proposes to bring before the meeting, a brief description of the
business desired to be brought before the meeting, the reasons for conducting
such business at the meting and any material interest in such business of such
stockholder and the beneficial owner(s), if any, on whose behalf the proposal is
made; and (iii) as to the stockholder giving the notice and the beneficial
owner(s) if any on whose behalf the nomination or proposal is made (A) the name
and address of such stockholder, as they appear on the Corporation's books, and
of such beneficial owner(s), and (B) the class and number of shares of the
Corporation which are owned beneficially and of record by such stockholder and
such beneficial owner(s), (C) a description of all arrangements or
understandings between such stockholder and such beneficial owner(s) and any
other person or persons (including their names) in connection with the proposal
of such business by such stockholder and any material interest of such
stockholder and of such beneficial owner(s) in such business, and (D) a
representation that such stockholder or its agent or designee intends to appear
in person or by proxy at the annual meeting to bring such business before the
meeting.

               (3) Only such business may be conducted at a special meeting of
stockholders as has been brought before the meeting pursuant to the
Corporation's notice of meeting. Nominations of persons for election to the
Board of Directors may be made at a special meeting of stockholders at which
directors are to be elected pursuant to the Corporation's notice of meeting (i)
by or at the direction of the Board of Directors or (ii) by any stockholder of
the Corporation who is a stockholder of record at the time of giving the notice
required by this Section 2.6(e), who is entitled to vote at the meeting and who
complies with the notice procedures set forth in this Section 2.6(e).
Nominations by stockholders of persons for election to the Board of Directors
may be made at such a special meeting of Stockholders if the stockholder's
notice required by this Section 2.6(e) is delivered to the Secretary of the
Corporation at the principal executive offices of the Corporation no more than
one hundred and twenty (120) days prior to such special meeting and not later
than the close of business on the later of the sixtieth (60th) day prior to such
special meeting or the tenth (10th) day following the day on which public
announcement is first made of the date of the special meeting and of the
nominees proposed by the Board of Directors to be elected at such meeting.

               (4) Only those persons who are nominated in accordance with the
procedures set forth in this Section 2.6(e) will be eligible for election as
directors at any meeting of stockholders. Only business brought before the
meeting in accordance with the procedures set forth in this Section 2.6(e) may
be conducted at a meeting of stockholders. The chairman of the meeting has the
power and duty to determine whether a nomination or any business proposed to be
brought before the meeting was made in accordance with the procedures set forth
in this Section 2.6(e) and, if any proposed nomination or business is not in
compliance with this Section 2.6(e), to declare that such defective proposal
shall be disregarded.

               (5) For purposes of this Section 2.6(e), "public announcement"
shall include disclosure in a press release reported by the Dow Jones News
Service, Associated Press, Business Wire, PR Newswire or comparable national
news service or in a document publicly

                                        5
draft 10/13/01



filed by the Corporation with the Securities and Exchange Commission pursuant to
the Exchange Act.

               (6) Notwithstanding the foregoing provisions of this Section
2.6(e), a stockholder shall also comply with all applicable requirements of the
Exchange Act and the rules and regulations thereunder with respect to the
matters set forth in this Section 2.6(e). Nothing in this Section 2.6(e) may be
deemed to remove any obligation of stockholders to comply with the requirements
of Rule 14a-8 under the Exchange Act with respect to proposals requested to be
included in the Corporation's proxy statement pursuant to said Rule 14a-8.

          (f) Quorum. Except as otherwise provided by law or by the Certificate
of Incorporation, at all meetings of the stockholders, the holders of a majority
in voting power of the capital stock issued and outstanding and entitled to vote
thereat, present in person or represented by proxy, shall constitute a quorum
for the transaction of business. If, however, such quorum shall not be present
or represented at any meeting of the stockholders, the stockholders entitled to
vote thereat, present in person or represented by proxy, shall have power to
adjourn the meeting from time to time, without notice other than announcement at
the meeting, until a quorum shall be present or represented. When a meeting is
adjourned to another time and place, unless these Bylaws otherwise require,
notice need not be given of the adjourned meeting if the time and place thereof
are announced at the meeting at which the adjournment is taken. At such
adjourned meeting at which a quorum shall be present or represented, any
business may be transacted which might have been transacted at the meeting as
originally noticed. If the adjournment is for more than thirty days, or if after
the adjournment a new record date is fixed for the adjourned meeting, a notice
of the adjourned meeting shall be given to each stockholder entitled to vote at
the meeting.

          (g) Voting. Voting need not be by written ballot, unless otherwise
provided by the Board of Directors. If authorized by the Board of Directors,
voting by written ballot may be satisfied by a ballot submitted by electronic
transmission, provided that any such electronic transmission must either set
forth or be submitted with information from which it can be determined that the
electronic transmission was authorized by the stockholder or proxyholder.

          (h) No Action by Written Consent. The stockholders of the Corporation
entitled to take action on any matter may act solely at a meeting of
stockholders duly called and held in accordance with law, the Certificate of
Incorporation and these Bylaws and may not act by a consent or consents in
writing.

          (i) Conduct of Meetings. All meetings of stockholders shall be
presided over by the Chairman of the Board of Directors, or in his absence, by
the Chief Executive Officer, or in his absence, by the President, if any, or in
his absence, by a chairman designated by the Board of Directors, or in the
absence of such designation, by a chairman chosen at the meeting. The Secretary
of the Corporation shall act as secretary of the meeting, but in his absence the
chairman of the meeting may appoint any person to act as secretary of the
meeting. The chairman of the meeting shall determine the order of business and
the procedure at any meeting of the stockholders, including but not limited to,
rules respecting the manner of voting and the opening and closing of the polls,
the time allotted to stockholders to speak,

                                        6
draft 10/13/01



determinations of whether business has been properly brought before the meeting
and the power to adjourn the meeting.

                                   ARTICLE III

                                    DIRECTORS

     3.1. Powers. The business and affairs of the Corporation shall be managed
by or under the direction of its Board of Directors. The Board of Directors
shall exercise all of the powers and duties conferred by law except as provided
by the Certificate of Incorporation or these Bylaws.

     3.2. Number of Directors. The number of directors shall initially be
[five], and thereafter shall be fixed from time to time by the affirmative vote
of a majority of all directors of the corporation then holding office at any
special or regular meeting of the Board of Directors.

     3.3. Election of Directors and Term. The Board of Directors shall be
elected by a plurality of the votes cast at each annual meeting (or a special
meeting in lieu thereof) of stockholders, and each director so elected shall
hold office until his successor is duly elected and qualified, or until his
earlier resignation or removal. Directors need not be stockholders.

     3.4. Resignation. Any director may resign at any time upon notice given in
writing or by electronic transmission. The resignation shall take effect at the
time specified therein, and if no time is specified, at the time of its receipt
by the President or Secretary. The acceptance of a resignation shall not be
necessary to make it effective.

     3.5. Vacancies. Unless otherwise provided in the Certificate of
Incorporation, newly created Directorships resulting from an increase in the
number of Directors and vacancies occurring in the Board for any other reason,
including the removal of Directors without cause, may be filled only by the
affirmative votes of a majority of the remaining directors. Any director so
chosen shall hold office for the unexpired term of his predecessor and until his
successor shall be elected and qualify or until his earlier death, resignation
or removal.

     3.6. Removal. Any director or the entire Board of Directors may be removed
either with or without cause at any time by the affirmative vote of the holders
of a majority in voting power of the capital stock issued and outstanding and
entitled to vote for the election of directors at any annual or special meeting
of the stockholders called for that purpose.

     3.7. Meetings.

          (a) Meetings. The Board of Directors of the Corporation may hold
meetings, both regular and special, either within or without the State of
Delaware. Regular meetings of the Board of Directors may be held at such time
and at such place as may from time to time be determined by the Board of
Directors. Special meetings of the Board of Directors shall be called by the
Secretary (i) at the direction of (x) the Chairman of the Board of Directors or
(y) the Chief Executive Officer, if the Chief Executive Officer is a member of
the Board of Directors, or (ii) at the written request of a majority of the
entire Board of Directors. Notice of a meeting of the Board of Directors,
stating the place, date and hour of the meeting, shall be given to each director

                                        7
draft 10/13/01



either by mail not less than forty-eight hours before the date of such meeting,
by telephone or by telegram or facsimile transmission not less than twenty-four
hours before the date of such meeting. A waiver of such notice by any director
or directors, in writing, signed by the person or persons entitled to such
notice, whether before or after the time stated therein, shall be deemed the
equivalent of such notice. Attendance of any director at a meeting shall
constitute a waiver of notice of such meeting except when he attends a meeting
for the express purpose of objecting, at the beginning of the meeting, to the
transaction of any business because the meeting is not lawfully called or
convened. Neither the business to be transacted at, nor the purpose of, any
regular or special meeting of the directors need be specified in any written
waiver of notice.

          (b) Quorum and Action. Except as may be otherwise specifically
provided by law, the Certificate of Incorporation or these Bylaws, at all
meetings of the Board of Directors, a majority of the entire Board of Directors
shall constitute a quorum for the transaction of business, and the act of a
majority of the directors present at any meeting at which there is a quorum
shall be the act of the Board of Directors. If a quorum shall not be present at
any meeting of the Board of Directors, the directors present may adjourn the
meeting from time to time, without notice other than announcement at the
meeting, until a quorum shall be present. Unless otherwise restricted by the
Certificate of Incorporation, any action required or permitted to be taken at
any meeting of the Board of Directors or of any committee thereof may be taken
without a meeting if all members of the Board of Directors or any committee
thereof, as the case may be, consent thereto in writing or by electronic
transmission, and the writing or writings or electronic transmission or
transmissions are filed in the minutes of proceedings of the Board of Directors.
Such filing shall be in paper form if the minutes are maintained in paper form
or shall be in electronic form if the minutes are maintained in electronic form.

     3.8. Meetings by Means of Conference Telephone. Unless otherwise provided
by the Certificate of Incorporation or these Bylaws, members of the Board of
Directors of the Corporation, or of any committee thereof, may participate in a
meeting of the Board of Directors or such committee by means of a conference
telephone or other communications equipment by means of which all persons
participating in the meeting can hear each other, and participation in a meeting
pursuant to this Section 3.8 shall constitute presence in person at such
meeting.

     3.9. Committees. The Board of Directors may, by resolution passed by a
majority of the entire Board of Directors, designate one or more committees. Any
committee, to the extent allowed by law and provided in the resolution
establishing such committee, shall have and may exercise all the powers and
authority of the Board of Directors in the management of the business and
affairs of the Corporation. Each committee shall consist of one or more of the
directors of the Corporation. The Board of Directors may designate one or more
directors as alternate members of any committee, who may replace any absent or
disqualified member at any meeting of any such committee. In the absence or
disqualification of a member of a committee, and in the absence of a designation
by the Board of Directors of an alternate member to replace the absent or
disqualified member, the member or members thereof present at any meeting and
not disqualified from voting, whether or not he or they constitute a quorum, may
unanimously appoint another member of the Board of Directors to act at the
meeting in the place of any absent or disqualified member. All committees of the
Board of Directors shall keep minutes of their meetings and shall report their
proceedings to the Board of Directors when requested or required by the Board of
Directors.

                                        8
draft 10/13/01



     3.10. Compensation. The directors may be paid their expenses, if any, of
attendance at each meeting of the Board of Directors and may be paid a fixed sum
and/or an amount of shares of the Corporation's stock (or options or other
rights to purchase or obtain shares of the Corporation's stock) for attendance
at each meeting of the Board of Directors and/or as compensation for service as
director. No such payment shall preclude any director from serving the
Corporation in any other capacity and receiving compensation therefor. Members
of special or standing committees may be allowed like compensation for attending
committee meetings.

                                   ARTICLE IV

                                    OFFICERS

     4.1. General. The officers of the Corporation shall be chosen by the Board
of Directors and shall be a Chairman of the Board (who must be a director), a
Chief Executive Officer, a Secretary and a Treasurer. The Board of Directors, in
its discretion, may also choose a President and one or more Vice Presidents,
Assistant Secretaries, Assistant Treasurers and other officers. Any number of
offices may be held by the same person, unless otherwise prohibited by law, the
Certificate of Incorporation or these Bylaws. The officers of the Corporation
need not be stockholders of the Corporation nor, except in the case of the
Chairman of the Board of Directors, need such officers be directors of the
Corporation.

     4.2. Election. The Board of Directors at its first meeting held after each
annual meeting of stockholders shall elect the officers of the Corporation who
shall hold their offices for such terms and shall exercise such powers and
perform such duties as shall be determined from time to time by the Board of
Directors; and all officers of the Corporation shall hold office until their
successors are chosen and qualified, or until their earlier resignation or
removal. Any officer elected by the Board of Directors may be removed for any
reason or for no reason at any time by the affirmative vote of a majority of the
Board of Directors. Any vacancy occurring in any office of the Corporation shall
be filled by the Board of Directors. The salaries of all officers of the
Corporation shall be fixed by the Board of Directors and/or the Compensation
Committee thereof.

     4.3. Voting Securities Owned by the Corporation. Powers of attorney,
proxies, waivers of notice of meeting, consents and other instruments relating
to securities owned by the Corporation may be executed in the name of and on
behalf of the Corporation by the Chief Executive Officer or such other officer
of the Corporation so authorized by the Board of Directors or the Chief
Executive Officer, and any such officer may, in the name of and on behalf of the
Corporation, take all such action as any such officer may deem advisable to vote
in person or by proxy at any meeting of security holders of any corporation in
which the Corporation may own securities and at any such meeting shall possess
and may exercise any and all rights and powers incident to the ownership of such
securities and which, as the owner thereof, the Corporation might have exercised
and possessed if present. The Board of Directors may, by resolution, from time
to time confer like powers upon any other person or persons.

     4.4. Chairman of the Board of Directors. The Chairman of the Board of
Directors shall preside at all meetings of the Board of Directors at which he is
present. The Chairman of

                                        9
draft 10/13/01



the Board of Directors shall also perform such other duties and may exercise
such other powers as from time to time may be assigned to him by these Bylaws or
by the Board of Directors.

     4.5. Chief Executive Officer. The Chief Executive Officer shall, subject to
the control of the Board of Directors and the Chairman of the Board of
Directors, have general supervision of the business of the Corporation and shall
see that all orders and resolutions of the Board of Directors are carried into
effect. He shall execute all bonds, mortgages, contracts and other instruments
of the Corporation requiring a seal, under the seal of the Corporation, except
where required or permitted by law to be otherwise signed and executed and
except that the other officers of the Corporation may sign and execute documents
when so authorized by these Bylaws, the Board of Directors or the Chief
Executive Officer. In the absence or disability of the Chairman of the Board of
Directors, the Chief Executive Officer shall preside at all meetings of the
stockholders and, if a member of the Board of Directors, of the Board of
Directors. The Chief Executive Officer shall also perform such other duties and
may exercise such other powers as from time to time may be assigned to him by
these Bylaws or by the Board of Directors.

     4.6. President. The President, who may be the same person as the Chief
Executive Officer, shall have such powers and duties as generally pertain to the
office of President and as the Board of Directors may from time to time
prescribe, subject generally to the direction of the Board of Directors and the
Executive Committee, if any. If the Chief Executive Officer and the President
are not the same individual, at the request of the Chief Executive Officer or in
his absence, or in the event of his inability or refusal to act, the President
shall perform the duties of the Chief Executive Officer, and when so acting,
shall have all the powers of and be subject to all the restrictions upon the
Chief Executive Officer. If there be no President, the Board of Directors shall
designate the officer of the Corporation who, in the absence of the Chief
Executive Officer, or in the event of the inability or refusal of the Chief
Executive Officer to act, shall perform the duties of the Chief Executive
Officer, and when so acting, such officer shall have all the powers of and be
subject to all the restrictions upon the Chief Executive Officer.

     4.7. Vice Presidents. Each Vice President shall have such powers and
perform such duties as the Board may from time to time prescribe.

     4.8. Secretary. The Secretary shall attend all meetings of the Board of
Directors and all meetings of stockholders and record all the proceedings
thereat in a book or books to be kept for that purpose; the Secretary shall also
perform like duties, when required, for the committees of the Board of
Directors. The Secretary shall give, or cause to be given, notice of all
meetings of the stockholders and special meetings of the Board of Directors, and
shall perform such other duties as may be prescribed by the Board of Directors
or Chief Executive Officer, under whose supervision he shall be. If the
Secretary shall be unable or shall refuse to cause to be given notice of all
meetings of the stockholders and special meetings of the Board of Directors, and
if there be no Assistant Secretary, then either the Board of Directors or the
Chief Executive Officer may choose another officer to cause such notice to be
given. The Secretary shall have custody of the seal of the Corporation and the
Secretary or any Assistant Secretary, if there be one, shall have authority to
affix the same to any instrument requiring it, and when so affixed, it may be
attested by the signature of the Secretary or by the signature of any such
Assistant Secretary. The Board of Directors may give general authority to any
other officer to affix the seal of the Corporation and to attest the affixing by
his signature. The Secretary shall see that all books,

                                       10
draft 10/13/01



reports, statements, certificates and other documents and records required by
law to be kept or filed are properly kept or filed, as the case may be.

     4.9. Treasurer. The Treasurer shall have the custody of the corporate funds
and securities and shall keep full and accurate accounts of receipts and
disbursements in books belonging to the Corporation and shall deposit all moneys
and other valuable effects in the name and to the credit of the Corporation in
such depositories as may be designated by the Board of Directors. The Treasurer
shall disburse the funds of the Corporation as may be ordered by the Board of
Directors, taking proper vouchers for such disbursements, and shall render to
the Chief Executive Officer and the Board of Directors, at its regular meetings,
or when the Board of Directors so requires, an account of all his transactions
as Treasurer and of the financial condition of the Corporation.

     4.10. Assistant Secretaries. Except as may be otherwise provided in these
Bylaws, Assistant Secretaries, if there be any, shall perform such duties and
have such powers as from time to time may be assigned to them by the Board of
Directors, the Chief Executive Officer, or the Secretary, and in the absence of
the Secretary or in the event of his disability or refusal to act, shall perform
the duties of the Secretary, and when so acting, shall have all the powers of
and be subject to all the restrictions upon the Secretary.

     4.11. Assistant Treasurers. Assistant Treasurers, if there be any, shall
perform such duties and have such powers as from time to time may be assigned to
them by the Board of Directors, the Chief Executive Officer, or the Treasurer,
and in the absence of the Treasurer or in the event of his disability or refusal
to act, shall perform the duties of the Treasurer, and when so acting, shall
have all the powers of and be subject to all the restrictions upon the
Treasurer.

     4.12. Other Officers. Such other officers as the Board of Directors may
choose shall perform such duties and have such powers as from time to time may
be assigned to them by the Board of Directors. The Board of Directors may
delegate to any other officer of the Corporation the power to choose such other
officers and to prescribe their respective duties and powers.

     4.13. Outside or Private Employment. No officer or employee shall have any
outside or private employment or affiliation with any firm or organization
incompatible with his concurrent employment by the Corporation, nor shall he
accept or perform any outside or private employment which the Chief Executive
Officer of the Corporation determines will interfere with the efficient
performance of his official duties.

                                    ARTICLE V

                                     NOTICES

     5.1. Notices. Whenever written notice is required by law, the Certificate
of Incorporation or these Bylaws, to be given to any stockholder, such notice
may be given by mail, addressed to such stockholder, at his address as it
appears on the records of the Corporation, with postage thereon prepaid, and
such notice shall be deemed to be given at the time when the same shall be
deposited in the United States mail. Written notice may also be given personally
or by facsimile, telegram, telex or cable. Without limiting the manner by which
notice otherwise may be given effectively to stockholders, any notice to
stockholders may be given by electronic

                                       11
draft 10/13/01



transmission in the manner provided in Section 232 of the Delaware General
Corporation Law. An affidavit of the mailing or other means of giving notice of
any meeting to any stockholder, executed by the secretary, assistant secretary
or any transfer agent of the Corporation giving the notice, shall be prima facie
evidence of the giving of such notice.

     5.2. Waivers of Notice. A written waiver of any notice, signed by a
stockholder, or waiver by electronic transmission by such stockholder, whether
given before or after the time of the event for which notice is to be given,
shall be deemed equivalent to the notice required to be given to such person.
Neither the business nor the purpose of any meeting need by specified in such a
waiver. Attendance at any meeting shall constitute waiver of notice except
attendance for the sole purpose of objecting to the timeliness of notice.

                                   ARTICLE VI

                               GENERAL PROVISIONS

     6.1. Dividends. Dividends upon the capital stock of the Corporation,
subject to the provisions of the Certificate of Incorporation, if any, may be
declared by the Board of Directors at any regular or special meeting, and may be
paid in cash, in property, or in shares of the capital stock. Before payment of
any dividend, there may be set aside out of any funds of the Corporation
available for dividends such sum or sums as the Board of Directors from time to
time, in its absolute discretion, deems proper as a reserve or reserves to meet
contingencies, or for equalizing dividends, or for repairing or maintaining any
property of the Corporation, or for any proper purpose, and the Board of
Directors may modify or abolish any such reserve.

     6.2. Disbursements. All checks or demands for money and notes of the
Corporation shall be signed by such officer or officers or such other person or
persons as the Board of Directors may from time to time designate.

     6.3. Fiscal Year. The fiscal year of the Corporation shall be fixed, and
shall be subject to change, by the Board of Directors.

     6.4. Corporate Seal. The corporate seal shall have inscribed thereon the
name of the Corporation, the year of its organization and the word "Delaware."
The seal may be used by causing it or a facsimile thereof to be impressed or
affixed or reproduced or otherwise.

                                   ARTICLE VII

                                   AMENDMENTS

     7.1. Subject to the provisions of the Certificate of Incorporation, as such
may be amended from time to time, and the provisions of the Delaware General
Corporation Law, these Bylaws may be altered, amended, changed, added to or
repealed in whole or in part, or new Bylaws may be adopted, by the stockholders
or the Board of Directors, provided, however, that notice of such alteration,
amendment, repeal or adoption of new Bylaws is provided before the date on which
such shall become effective. For purposes of this Article VII, filing such
alteration, amendment, repeal or new Bylaws with the Securities and Exchange
Commission and/or the principal securities exchange on which the common stock of
the Corporation is traded

                                       12
draft 10/13/01



shall be deemed to provide notice thereof. All such amendments must be approved
by either the holders of a majority of the outstanding capital stock of the
Corporation entitled to vote thereon or by a majority of the entire Board of
Directors. Any Bylaws adopted or amended by the Board may be amended or repealed
by the Stockholders entitled to vote thereon.

                                  ARTICLE VIII

                     INDEMNIFICATION OF OFFICERS, DIRECTORS,
                              EMPLOYEES AND AGENTS

     8.1. Indemnity Undertaking. The Corporation shall indemnify any person who
is or was made, or is threatened to be made, a party to any Proceeding,
including, without limitation, an action by or in the right of the Corporation
to procure a judgment in its favor, by reason of the fact that such person, or a
person of whom such person is the legal representative, is or was a director or
officer of the Corporation, or, at the request of the Corporation, is or was
serving as a director, officer, partner, venturer, proprietor, trustee,
employee, agent, or similar functionary of another foreign or domestic
corporation, partnership, joint venture, sole proprietorship, trust, employee
benefit plan, or other enterprise (an "Other Entity"), to the fullest extent
permitted under the Delaware General Corporation Law, as the same exists or may
hereafter be amended, against judgments, fines, penalties, excise taxes, amounts
paid in settlement and costs, charges and expenses (including attorneys' fees,
disbursements and other charges), except as provided in Section 8.3. Without
limiting the generality of the foregoing, to the extent permitted by then
applicable law, the grant of mandatory indemnification pursuant to this Article
VIII shall extend to Proceedings involving the negligence of such Person.

     8.2. Advancement of Expenses. Except as provided in Section 8.3, the
Corporation shall reimburse or advance to any director or officer entitled to
indemnification hereunder the funds necessary for payment of expenses, including
attorneys' fees and disbursements, incurred in connection with any Proceeding,
in advance of the final disposition of such Proceeding; provided, however, that,
if required by the Delaware General Corporation Law, such expenses incurred by
or on behalf of any director or officer may be paid in advance of the final
disposition of a Proceeding only upon receipt by the Corporation of an
undertaking, by or on behalf of such director or officer, to repay any such
amount so advanced if it shall ultimately be determined by final judicial
decision from which there is no further right of appeal that such director or
officer is not entitled to be indemnified for such expenses.

     8.3. Actions against the Corporation. Notwithstanding anything to the
contrary in this Article VIII, the Corporation shall not be obligated to
indemnify a director or officer or to advance expenses with respect to any claim
asserted by such person initially or by cross-claim, counter-claim, or
third-party claim, in any Proceeding against the Corporation, except for
Proceedings to enforce rights to indemnification (including rights to
advancement of expenses), unless, prior to such claim being asserted, the
assertion of such claim is approved by the directors of the Corporation by a
majority vote of a quorum of the Board of Directors or a committee thereof
established for such purpose.

     8.4. Rights Not Exclusive. The rights to indemnification and reimbursement
or advancement of expenses provided by, or granted pursuant to, this Article
VIII shall not be

                                       13
draft 10/13/01



deemed exclusive of any other rights to which a person seeking indemnification
or reimbursement or advancement of expenses may have or hereafter be entitled
under any statute, the Certificate of Incorporation, the Bylaws, any agreement,
any vote of stockholders or disinterested directors or otherwise, both as to
action in his or her official capacity and as to action in another capacity
while holding such office.

     8.5. Continuation of Benefits. The rights to indemnification and
reimbursement or advancement of expenses provided by, or granted pursuant to,
this Article VIII shall continue as to a person who has ceased to be a director
or officer (or other person indemnified hereunder) and shall inure to the
benefit of the heirs, executors, administrators, and personal representatives of
such person.

     8.6. Insurance. The Corporation shall have power to purchase and maintain
insurance on behalf of any person who is or was a director, officer, employee or
agent of the Corporation, or is or was serving at the request of the Corporation
as a director, officer, employee or agent of an Other Entity, against any
liability asserted against such person and incurred by such person in any such
capacity, or arising out of such person's status as such, whether or not the
Corporation would have the power to indemnify such person against such liability
under the provisions of this Article VIII, the Certificate of Incorporation or
under section 145 of the Delaware General Corporation Law or any other provision
of law.

     8.7. Binding Effect. The provisions of this Article VIII shall be a
contract between the Corporation, on the one hand, and each director and officer
who serves in such capacity at any time while this Article VIII is in effect, on
the other hand, pursuant to which the Corporation and each such director or
officer intend to be, and shall be, legally bound. No repeal or modification of
this Article VIII shall affect any rights or obligations with respect to any
state of facts then or theretofore existing or thereafter arising or any
Proceeding theretofore or thereafter brought or threatened based in whole or in
part upon any such state of facts.

     8.8. Procedural Rights. The rights to indemnification and reimbursement or
advancement of expenses provided by, or granted pursuant to, this Article VIII
shall be enforceable by any person entitled to such indemnification or
reimbursement or advancement of expenses in any court of competent jurisdiction.
If a claim for indemnification or advancement of expenses hereunder is not paid
in full by the Corporation within sixty (60) days after a written claim has been
received by the Corporation, the claimant may at any time thereafter bring suit
against the Corporation to recover the unpaid amount of the claim, and if
successful in whole or in part, the claimant shall also be entitled to be paid
the expenses of prosecuting such claim. The burden of proving that such
indemnification or reimbursement or advancement of expenses is not appropriate
shall be on the Corporation. Neither the failure of the Corporation (including
its Board of Directors, its independent legal counsel and its stockholders) to
have made a determination prior to the commencement of such action that such
indemnification or reimbursement or, except as otherwise provided in Section
8.3, advancement of expenses is proper in the circumstances nor an actual
determination by the Corporation (including its Board of Directors, its
independent legal counsel and its stockholders) that such person is not entitled
to such indemnification or reimbursement or advancement of expenses shall
constitute a defense to the action or create a presumption that such person is
not so entitled, except as otherwise provided in Section 8.3. Such a person
shall also be indemnified for any expenses incurred in

                                       14
draft 10/13/01



connection with successfully establishing his or her right to such
indemnification or reimbursement or advancement of expenses, in whole or in
part, in any such Proceeding.

     8.9. Indemnification of Others. The Corporation may additionally indemnify
any employee or agent of the Corporation to the fullest extent permitted by law.

     8.10. Definition of "Proceeding." As used herein, the term "Proceeding"
means any threatened, pending, or completed action, suit, or proceeding, whether
civil, criminal, administrative, arbitrative, or investigative, any appeal in
such an action, suit, or proceeding, and any inquiry or investigation that could
lead to such an action, suit, or proceeding.

     8.11. Severability. If this Bylaw or any portion thereof shall be
invalidated on any ground by any court of competent jurisdiction, then the
Corporation shall nevertheless indemnify each person as provided above as to the
expenses (including attorney's fees), judgments, fines and amounts paid in
settlement with respect to any action, suit or proceeding, whether civil,
criminal, administrative or investigative, including a grand jury proceeding and
an action by the Corporation, to the full extent permitted by any applicable
portion of this Bylaw that shall not have been invalidated or by any other
applicable law.

                                   ARTICLE IX

                                EMERGENCY BYLAWS

     Unless the Certificate of Incorporation provides otherwise, the following
provisions of this Article IX shall be operative during any emergency resulting
from an attack on the United States or on a locality in which the Corporation
conducts its business or customarily holds meetings of its Board of Directors or
its stockholders, or during any nuclear or atomic disaster, or during the
existence of any catastrophe, or other similar emergency condition, as a result
of which a quorum of the Board of Directors or a standing committee thereof
cannot readily be convened for action. During such emergency:

     9.1. Notice to Board Members. Any one member of the Board of Directors or
any one of the following officers: Chairman of the Board, Chief Executive
Officer, President, any Vice President, Secretary, or Treasurer, may call a
meeting of the Board of Directors. Notice of such meeting need be given only to
those directors whom it is practicable to reach, and may be given in any
practical manner, including by publication and radio. Such notice shall be given
at least six hours prior to commencement of the meeting.

     9.2. Temporary Directors and Quorum. One or more officers of the
Corporation present at the emergency meeting of the Board of Directors, as is
necessary to achieve a quorum, shall be considered to be directors for the
meeting, and shall so serve in order of rank, and within the same rank, in order
of seniority. In the event that less than a quorum of the directors are present
(including any officers who are to serve as directors for the meeting), those
directors present (including the officers serving as directors) shall constitute
a quorum.

     9.3. Actions Permitted To Be Taken. The Board as constituted in Section
9.2, and after notice as set forth in Section 9.1 may:

     (a) prescribe emergency powers to any officer of the Corporation;

                                       15
draft 10/13/01



     (b) delegate to any officer or director, any of the powers of the Board of
Directors;

     (c) designate lines of succession of officers and agents, in the event that
any of them are unable to discharge their duties;

     (d) relocate the principal place of business, or designate successive or
simultaneous principal places of business; and

     (e) take any other convenient, helpful or necessary action to carry on the
business of the Corporation.


                                       16
draft 10/13/01



                                                                     Exhibit 4.2


                     BUSINESS LOAN AND SECURITY AGREEMENT

                          dated as of December 17, 2001

                                  by and among

                        MANTECH INTERNATIONAL CORPORATION
                         AND CERTAIN OF ITS SUBSIDIARIES
                              as Borrower Parties,

                         CITIZENS BANK OF PENNSYLVANIA,

                         PNC BANK, NATIONAL ASSOCIATION,

                  BRANCH BANKING AND TRUST COMPANY OF VIRGINIA

                                       and

                            CHEVY CHASE BANK, F.S.B.,
                               as Lender Parties,

                         CITIZENS BANK OF PENNSYLVANIA,
                             as Administrative Agent

                                       and

                         PNC BANK, NATIONAL ASSOCIATION,
                             as Documentation Agent



                                TABLE OF CONTENTS
                                                                                     
CERTAIN DEFINITIONS..................................................................   6
ARTICLE 1 COMMITMENT.................................................................   18
   1.1.     Maximum Loan Amount......................................................   18
   1.2.     Use of Proceeds..........................................................   19
   1.3.     Borrowing Base and Maximum Advances......................................   19
   1.4.     Advances.................................................................   21
   1.5.     Additional Mandatory Payments; Reduction of Commitment...................   21
   1.6.     Field Audits.............................................................   22
   1.7.     Certain Fees.............................................................   23
   1.8.     Intentionally Omitted....................................................   23
   1.9.     Appointment of the Parent Company........................................   24
   1.10.    Joinder of New Subsidiaries and Affiliates...............................   24
ARTICLE 2 LETTERS OF CREDIT..........................................................   24
   2.1.     Issuance.................................................................   24
   2.2.     Amounts Advanced Pursuant to Letters of Credit...........................   25
   2.3.     Letter of Credit Fees....................................................   25
ARTICLE 3 SECURITY...................................................................   26
   3.1.     Security Generally.......................................................   26
   3.2.     No Preference or Priority................................................   27
ARTICLE 4 CONDITIONS TO THE LENDERS' OBLIGATIONS.....................................   27
   4.1.     Compliance with Law and Agreements; Third Party Consents.................   27
   4.2.     Financial Condition......................................................   28
   4.3.     Opinion of Counsel.......................................................   28
   4.4.     No Default...............................................................   28
   4.5.     Documentation............................................................   28
   4.6.     Closing Costs and Expenses...............................................   28
ARTICLE 5 REPRESENTATIONS AND WARRANTIES.............................................   28
   5.1.     Corporate Existence and Qualification....................................   28
   5.2.     Corporate Authority; Noncontravention....................................   29
   5.3.     Financial Position.......................................................   29
   5.4.     Payment of Taxes.........................................................   29
   5.5.     Accuracy of Submitted Information; Omissions.............................   29
   5.6.     Government Contracts.....................................................   30
   5.7.     No Defaults or Liabilities...............................................   30
   5.8.     No Violations of Law.....................................................   30
   5.9.     Litigation and Proceedings...............................................   30
   5.10.    Security Interest in the Collateral......................................   30
   5.11.    Principal Place of Business; Location of Books and Records...............   30
   5.12.    Fiscal Year..............................................................   31
   5.13.    Pension Plans............................................................   31
   5.14.    O.S.H.A. and Environmental Compliance....................................   31
   5.15.    Intellectual Property....................................................   32
   5.16.    Existing or Pending Defaults; Material Contracts.........................   32
   5.17.    Leases and Real Property.................................................   33
   5.18.    Labor Relations..........................................................   33
   5.19.    Assignment of Government Contracts.......................................   33
   5.20.    Contribution Agreement...................................................   33





                                                                                         
   5.21.    Intentionally Deleted........................................................   33
   5.22.    Ownership of the Borrowers...................................................   33
   5.23.    Solvency.....................................................................   34
   5.24.    Survival of Representations and Warranties...................................   34
ARTICLE 6 AFFIRMATIVE COVENANTS OF THE BORROWERS.........................................   34
   6.1.     Payment of Loan Obligations..................................................   34
   6.2.     Payment of Taxes.............................................................   34
   6.3.     Delivery of Financial and Other Statements...................................   34
   6.4.     Maintenance of Records; Review by the Lenders................................   35
   6.5.     Maintenance of Insurance Coverage............................................   35
   6.6.     Maintenance of Property/Collateral; Performance of Contracts.................   36
   6.7.     Maintenance of Corporate Existence...........................................   36
   6.8.     Maintenance of Certain Accounts with the Administrative Agent................   36
   6.9.     Maintenance of Management....................................................   36
   6.10.    Disclosure of Defaults, Etc..................................................   36
   6.11.    Security Perfection; Assignment of Claims Act; Payment of Costs..............   37
   6.12.    Defense of Title to Collateral...............................................   38
   6.13.    Compliance with Law..........................................................   38
   6.14.    Other Collateral Covenants...................................................   38
   6.15.    Financial Covenants of the Borrowers.........................................   40
   6.16.    Intentionally Omitted........................................................   41
   6.17.    Landlord Waivers; Subordination..............................................   41
   6.18.    Substitute Notes.............................................................   41
   6.19.    Interest Rate Contracts......................................................   41
ARTICLE 7 NEGATIVE COVENANTS OF THE BORROWERS............................................   42
   7.1.     Change of Control; Disposition of Assets; Merger.............................   42
   7.2.     Margin Stocks................................................................   43
   7.3.     Change of Operations.........................................................   43
   7.4.     Judgments; Attachments.......................................................   43
   7.5.     Further Assignments; Performance and Modification of Contracts; etc..........   44
   7.6.     Affect Rights of the Administrative Agent or Lenders.........................   44
   7.7.     Indebtedness; Granting of Security Interests.................................   44
   7.8.     Dividends; Loans; Advances; Investments and Similar Events...................   46
   7.9.     Lease Obligations............................................................   48
   7.10.    Duty Deferment Bond..........................................................   48
   7.11.    Lockbox Deposits.............................................................   48
ARTICLE 8 COLLATERAL ACCOUNT.............................................................   48
ARTICLE 9 DEFAULT AND REMEDIES...........................................................   49
   9.1.     Events of Default............................................................   49
   9.2.     Remedies.....................................................................   50
ARTICLE 10 THE AGENTS; AGENCY............................................................   52
   10.1.    Appointment..................................................................   52
   10.2.    General Nature of Agents' Duties.............................................   53
   10.3.    Exercise of Powers...........................................................   53
   10.4.    General Exculpatory Provisions...............................................   54
   10.5.    Administration by the Agent..................................................   55
   10.6.    Lenders Not Relying on Agent or Other Lenders................................   56
   10.7.    Indemnification..............................................................   56
   10.8.    Agent in its Individual Capacity; Agents' Commitment.........................   57



                                       ii



                                                                                       
   10.9.    Holders of Notes...........................................................   57
   10.10.   Successor Agent............................................................   57
   10.11.   Additional Agents..........................................................   58
   10.12.   Calculations...............................................................   58
   10.13.   Funding by the Administrative Agent........................................   59
   10.14.   Benefit of Article.........................................................   60
ARTICLE 11 CERTAIN ADDITIONAL RIGHTS AND  OBLIGATIONS REGARDING THE COLLATERAL.........   61
   11.1.    Power of Attorney..........................................................   61
   11.2.    Lockbox....................................................................   62
   11.3.    Other Agreements...........................................................   62
ARTICLE 12 MISCELLANEOUS...............................................................   62
   12.1.    Remedies Cumulative........................................................   62
   12.2.    Waiver.....................................................................   63
   12.3.    Notices....................................................................   63
   12.4.    Entire Agreement...........................................................   64
   12.5.    Relationship of the Parties................................................   64
   12.6.    Waiver of Jury Trial.......................................................   65
   12.7.    Submission to Jurisdiction; Service of Process; Venue......................   65
   12.8.    Changes in Capital Requirements............................................   66
   12.9.    Captions...................................................................   66
   12.10.   Modification and Waiver....................................................   66
   12.11.   Transferability............................................................   66
   12.12.   Governing Law; Binding Effect..............................................   67
   12.13.   Gender; Number.............................................................   67
   12.14.   Joint and Several Liability................................................   67
   12.15.   Materiality................................................................   67
   12.16.   Reliance on the Administrative Agent.......................................   67
   12.17.   Counterparts...............................................................   67



EXHIBITS
- --------

Exhibit 1      Request for Advance and Certification
Exhibit 1(a)   Request for Swing Line Loan Advance
Exhibit 2      LIBOR Election Form and Certification
Exhibit 3      LIBOR Interest Election Procedure and Requirements
Exhibit 4      Borrowing Base/Non-Default Certificate
Exhibit 5      Quarterly Covenant Compliance/Non-Default Certificate
Exhibit 6      Form of Joinder Agreement
Exhibit 7      Financial Statements
Exhibit 8      Escrow Agreement
Exhibit 9      Pricing Grid
Exhibit 10     Form of Assignment and Acceptance Agreement
Exhibit 11     First Source Debt Letter Agreement

SCHEDULES
- ---------

Schedule 1       Lender Commitments/Percentages
Schedule 2       Principal Business Location(s)

                                      iii



Schedule 4.3         Borrowers Excluded from Opinion(s)
Schedule 5.6         Government Contracts (to be assigned)
Schedule 5.9         Litigation and Proceedings
Schedule 5.11        Borrower's Business Locations
Schedule 5.15 (a)    Intellectual Property
Schedule 5.15(b)     Intellectual Property Royalty Payments
Schedule 5.16(a)     Material Contracts
Schedule 5.18        Labor Agreements
Schedule 5.22(a)     Borrower Ownership
Schedule 5.22(b)     Minority Shareholders
Schedule 5.23        Insolvent Entities
Schedule 7.7(a)      Existing Indebtedness
Schedule 7.7(c)      Liens Securing Existing Indebtedness
Schedule 7.8(c)      Existing Loans, Advances and/or Investments (to
                     non-Borrowers)
Schedule 9.1         Entities to be Liquidated or Dissolved

                                       iv



                      BUSINESS LOAN AND SECURITY AGREEMENT
                      ------------------------------------

         THIS BUSINESS LOAN AND SECURITY AGREEMENT is executed as of the 17/th/
day of December, 2001 and is by and among (i) CITIZENS BANK OF PENNSYLVANIA, a
Pennsylvania state chartered bank ("Citizens Bank"), acting in the capacity of
Lender, Swing Line Lender and as the Administrative Agent for the Lenders,
having offices at 8521 Leesburg Pike, Suite 405, Vienna, Virginia 22182; (ii)
PNC BANK, NATIONAL ASSOCIATION, a national banking association ("PNC"), acting
in the capacity of Lender and as the Documentation Agent for the Lenders, having
offices at One PNC Plaza, 6/th/ Floor, 249 Fifth Avenue, Pittsburgh,
Pennsylvania 15222; (iii) BRANCH BANKING AND TRUST COMPANY OF VIRGINIA, a
Virginia banking corporation ("BB&T"), having offices at 8200 Greensboro Drive,
Suite 250, McLean, Virginia 22102, CHEVY CHASE BANK, F.S.B., a federal savings
bank ("Chevy Chase"), having offices at 7501 Wisconsin Avenue, 12/th/ Floor,
Bethesda, MD 20814, and other "Lender" parties to this Business Loan and
Security Agreement from time to time; (iv) MANTECH INTERNATIONAL CORPORATION, a
New Jersey corporation; MANTECH INTERNATIONAL CORPORATION, a Delaware
corporation; MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC., a Virginia
corporation; MANTECH SYSTEMS ENGINEERING CORPORATION, a Virginia corporation;
NSI TECHNOLOGY SERVICES CORPORATION, a California corporation; MANTECH SYSTEMS
CORPORATION, a New Jersey corporation; MANTECH SOLUTIONS CORPORATION, a Virginia
corporation; MANTECH ENVIRONMENTAL TECHNOLOGY, INC., a Virginia corporation;
MANTECH SUPPORT TECHNOLOGY, INC., a Virginia corporation; MANTECH AUSTRALIA
INTERNATIONAL, INC., a Virginia corporation formerly known as ManTech Computer
Company, Inc.; FIELD SUPPORT SERVICES Muhendislik lIMITED SIRKETI, a corporation
organized and existing under the laws of Turkey; MASI U.K. LIMITED, a
corporation organized and existing under the laws of the United Kingdom; MANTECH
TELECOMMUNICATIONS AND INFORMATION SYSTEMS CORPORATION, a Delaware corporation
formerly known as ManTech Strategic Associates, Ltd.; TECHNOLOGY MANAGEMENT
CORPORATION, a Virginia corporation; SCIENCE ENGINEERING & ANALYSIS,
INCORPORATED, a Virginia corporation; MANTECH ENVIRONMENTAL RESEARCH SERVICES
CORP., a Virginia corporation; NSI ENVIRONMENTAL SOLUTIONS, INC., a Virginia
corporation; MANTECH ENVIRONMENTAL CORPORATION, a Virginia corporation; MANTECH
SYSTEMS SOLUTIONS CORPORATION, a Virginia corporation formerly known as
Tidewater Consultants, Inc.; MANTECH SOLUTIONS & TECHNOLOGIES CORPORATION, a
Virginia corporation formerly known as ManTech Systems Integration Corporation;
MANTECH TEST SYSTEMS, INC., a Virginia corporation; MANTECH U.K. SYSTEMS
CORPORATION, a Virginia corporation; REDESMUNDIAL, S.A., a corporation organized
and existing under the laws of the Republic of Panama formerly known as ManTech
International Panama, Inc.; MANTECH GERMANY SYSTEMS CORPORATION, a Virginia
corporation; MANTECH CHINA SYSTEMS CORPORATION, a Virginia corporation; MANTECH
ADVANCED DEVELOPMENT GROUP, INC., a California corporation; MANTECH ENTERPRISE
SOLUTIONS, INC., a Virginia corporation; MANTECH ADVANCED RECOGNITION LIMITED, a
private company registered in England under the number 885326 formerly known as
Advanced Recognition Limited; VOBIX CORPORATION, a Virginia corporation; MANTECH
DATABASE SERVICES EUROPE LIMITED, a corporation organized and



existing under the laws of the United Kingdom; MANTECH SECURITY TECHNOLOGIES
CORPORATION, a Virginia corporation, with all such corporations having principal
offices located at the location(s)s listed on Schedule 2 hereto; and (v) each
                                              ----------
other person or entity hereafter becoming a "Borrower" party to this Business
Loan and Security Agreement by executing a "Joinder Agreement" pursuant to this
Business Loan and Security Agreement.

                          W I T N E S S E T H  T H A T:
                          - - - - - - - - - -  - - - -

         In consideration of the mutual covenants and agreements herein
contained, Ten Dollars ($10.00) and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree, represent and warrant as follows:

                               CERTAIN DEFINITIONS
                               -------------------

         For the purposes of this Business Loan and Security Agreement, the
terms set forth below shall have the following definitions:

         "Account Debtor" shall mean any person or entity who is indebted to one
(1) or more of the Borrowers for the payment of any Receivable; it being
understood and agreed that when computations are being made with respect to
amounts due and owing from an Account Debtor (a) such computations shall be made
on a contract by contract basis (as opposed to on an Account Debtor basis), with
respect to amounts owing in connection with Government Contracts, and (b) such
computations shall be made on the basis of all amounts due from the Account
Debtor and any other person or entity related to or affiliated with the
particular Account Debtor, with respect to amounts owing in connection with
contracts which are not Government Contracts.

         "Accounts" shall mean all the funds and accounts now or hereafter owned
or held by a Borrower and all monies, Receivables, Investment Property, Security
Entitlements and other property on deposit therein or credited thereto,
including without limitation, all "Accounts," as such term is now or hereafter
defined in the UCC, whether now owned or hereafter acquired, including (a) all
accounts receivable, other receivables, book debts and other forms of
obligations (other than forms of obligations evidenced by Chattel Paper, or
Instruments), (including any such obligations that may be characterized as an
account or contract right under the UCC), (b) all rights in, to and under all
purchase orders or receipts for goods or services, (c) all rights to any goods
represented by any of the foregoing (including unpaid sellers' rights of
rescission, replevin, reclamation and stoppage in transit and rights to
returned, reclaimed or repossessed goods), (d) all rights to payment due for
property sold, leased, licensed, assigned or otherwise disposed of, for a policy
of insurance issued or to be issued, for a secondary obligation incurred or to
be incurred, for energy provided or to be provided, for the use or hire of a
vessel under a charter or other contract, arising out of the use of a credit
card or charge card, or for services rendered or to be rendered in connection
with any other transaction (whether or not yet earned by performance), (e) all
"health care insurance receivables", as defined in the UCC and (f) all
collateral security of any kind, given by any person or entity with respect to
any of the foregoing.

                                        2



         "Additional Equity Stock" shall mean the shares of either treasury
stock or newly issued preferred stock, common stock or other equity interests
(including options, warrants or rights to purchase) of any Borrower issued to
any person or entity from and after the date hereof.

         "Administration Fee" shall have the meaning assigned to such term in
Section 1.7(a) of this Agreement.

         "Administrative Agent" shall mean Citizens Bank, acting in its capacity
as administrative agent for the Lenders, or any successor Administrative Agent
appointed pursuant to Section 10.10 of this Agreement.

         "Administrative Agent's Fee" shall have the meaning assigned to such
term in Section 1.7 of this Agreement.

         "Agent" or Agents" shall mean the Administrative Agent and the
Documentation Agent, individually or collectively, as the context may require.

         "Agent's Spot Rate of Exchange" shall mean the spot rate of exchange as
determined by the Administrative Agent, based on the Reuters FX Page, for the
purchase of the relevant currency in the London foreign exchange market with
U.S. Dollars at or about 9:00 a.m. on any date of determination.

         "Agreement" or "Loan Agreement" shall mean this Business Loan and
Security Agreement, together with the schedules and exhibits attached hereto and
any and all amendments or modifications of this Business Loan and Security
Agreement.

         "Annual Excess Cash Limitation" shall mean the Dollar Equivalent Amount
of Five Hundred Thousand and No/100 Dollars ($500,000.00).

         "Applicable Interest Rate" shall mean either the (i) LIBOR Lending Rate
or (ii) Base Rate, as set forth in the Notes.

         "Applicable Laws" shall mean any federal, state or local law,
ordinance, rule or regulation to which any Borrower or the property of any
Borrower is subject, whether domestic or international.

         "Approved ESOP" shall have the meaning assigned to such term in Section
7.1(b) of this Agreement.

         "Approved ESPP" shall have the meaning assigned to such term in Section
7.1(b) of this Agreement.

         "ARL" shall mean ManTech Advanced Recognition Limited, a private
company registered in England under the number 885326 formerly known as Advanced
Recognition Limited.

         "Base Rate" shall mean the higher of the (i) Federal Funds Rate plus
one-half of one percent (.50%) or (ii) Prime Rate.

                                        3



         "Borrower" and "Borrowers" shall mean, respectively, each and all of
the following entities, as the context may require: MANTECH INTERNATIONAL
CORPORATION, a New Jersey corporation; MANTECH INTERNATIONAL CORPORATION, a
Delaware corporation; MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC., a Virginia
corporation; MANTECH SYSTEMS ENGINEERING CORPORATION, a Virginia corporation;
NSI TECHNOLOGY SERVICES CORPORATION, a California corporation; MANTECH SYSTEMS
CORPORATION, a New Jersey corporation; MANTECH SOLUTIONS CORPORATION, a Virginia
corporation; MANTECH ENVIRONMENTAL TECHNOLOGY, INC., a Virginia corporation;
MANTECH SUPPORT TECHNOLOGY, INC., a Virginia corporation; MANTECH AUSTRALIA
INTERNATIONAL, INC., a Virginia corporation formerly known as ManTech Computer
Company, Inc.; FIELD SUPPORT SERVICES Muhendislik Limited sirketi, a corporation
organized and existing under the laws of Turkey; MASI U.K. LIMITED, a
corporation organized and existing under the laws of the united kingdom; MANTECH
TELECOMMUNICATIONS AND INFORMATION SYSTEMS CORPORATION, a Delaware corporation
formerly known as ManTech strategic associates, ltd.; TECHNOLOGY MANAGEMENT
CORPORATION, a Virginia corporation; SCIENCE ENGINEERING & ANALYSIS,
INCORPORATED, a Virginia corporation; MANTECH ENVIRONMENTAL RESEARCH SERVICES
CORP., a Virginia corporation; NSI ENVIRONMENTAL SOLUTIONS, INC., a Virginia
corporation; MANTECH ENVIRONMENTAL CORPORATION, a Virginia corporation; MANTECH
SYSTEMS SOLUTIONS CORPORATION, a Virginia corporation formerly known as
Tidewater Consultants, Inc.; MANTECH TEST SYSTEMS, INC., a Virginia corporation;
MANTECH SOLUTIONS & TECHNOLOGIES CORPORATION, a Virginia corporation formerly
known as ManTech Systems Integration Corporation; MANTECH U.K. SYSTEMS
CORPORATION, a Virginia corporation; REDESMUNDIAL, S.A., a corporation organized
and existing under the laws of the Republic of Panama formerly known as ManTech
International Panama, Inc.; MANTECH CHINA SYSTEMS CORPORATION, a Virginia
corporation; MANTECH GERMANY SYSTEMS CORPORATION, a Virginia corporation;
MANTECH ADVANCED DEVELOPMENT GROUP, INC., a California corporation; MANTECH
ENTERPRISE SOLUTIONS, INC., a Virginia corporation; MANTECH ADVANCED RECOGNITION
LIMITED, a private company registered in England under the number 885326
formerly known as Advanced Recognition Limited; VOBIX CORPORATION, a Virginia
corporation; MANTECH DATABASE SERVICES EUROPE LIMITED, a corporation organized
and existing under the laws of the United Kingdom; MANTECH SECURITY TECHNOLOGIES
CORPORATION, a Virginia corporation; and each other person or entity hereafter
executing a Joinder Agreement pursuant to Section 1.10 of this Agreement.

         "Borrowing Base/Non-Default Certificate" shall mean a certificate in
the form of Exhibit 4 hereto.
            ---------

         "Borrowing Base Deficiency" shall have the meaning assigned to such
term in Section 1.3 of this Agreement.

         "Business Day" shall mean (a) any day which is neither a Saturday or
Sunday nor a legal holiday on which commercial banks are authorized or required
to be closed in the Commonwealth of Virginia; (b) when such term is used to
describe a day on which a borrowing, payment, prepaying, or repaying is to be
made in respect of any LIBOR Rate Loan, any day

                                        4



which is: (i) neither a Saturday or Sunday nor a legal holiday on which
commercial banks are authorized or required to be closed in New York City; and
(ii) a London Banking Day; and (c) when such term is used to describe a day on
which an interest rate determination is to be made in respect of any LIBOR Rate
Loan, any day which is a London Banking Day.

         "CERCLA" shall mean the Comprehensive Environmental Response,
Compensation and Liability Act of 1980, as amended (42 U.S.C. Sections 9601 et
                                                                            --
seq.).
- ---

         "Chattel Paper" shall have the meaning assigned to that term under the
UCC, and shall include "electronic chattel paper" and "tangible chattel paper",
as such terms are defined in the UCC, whether now owned or hereafter acquired by
a Borrower.

         "Citizens Bank" shall mean Citizens Bank of Pennsylvania, a
Pennsylvania state chartered bank, acting individually, together with its
successors and assigns.

         "Closing" shall mean the settlement of the transactions contemplated by
this Agreement.

         "Closing Date" shall mean the date of this Agreement.

         "Collateral" shall have the meaning assigned to such term in Article 3
of this Agreement.

         "Collateral Account" shall have the meaning assigned to such term in
Article 8 of this Agreement.

         "Commercial Contract" shall mean any written contract to which a
Borrower is a party (other than a Government Contract or a contract with the
District of Columbia or any department, instrumentality or agency thereof) which
gives rise or may give rise to Receivables.

         "Commercial Tort Claims" shall have the meaning assigned that term
under the UCC, and shall include any and all claims now existing or hereafter
arising in tort with respect to which (a) the claimant is an organization, or
(b) the claimant is an individual and the claim (i) arose in the course of the
claimant's business or profession, and (ii) does not include damages arising out
of personal injury to or death of any individual.

         "Commitment Amount" shall mean Seventy-one Million Four Hundred
Thousand and No/100 Dollars ($71,400,000.00), or if the maximum aggregate
commitment of the Lenders hereunder is reduced pursuant to the terms of this
Agreement, such lesser amount.

         "Commitment Fee" shall have the meaning assigned to such term in
Section 1.7 of this Agreement.

         "Commitment Letter" shall mean that certain letter dated November 13,
2001, from the Administrative Agent to the Parent Company relating to the Loan,
including the Term Sheet and schedules annexed thereto.

         "Contribution Agreement" shall mean the Contribution Agreement of even
date herewith, by and among the Borrowers, and delivered by the Borrowers prior
to or simultaneously with their execution and delivery of this Agreement or a
Joinder Agreement, as

                                        5



applicable, together with all Administrative Agent-approved amendments and
modifications thereof hereafter executed and delivered by the Borrowers.

         "Deposit Accounts" shall have the meaning assigned to that term under
the UCC, and shall include any demand, time, savings, passbook or similar
account from time to time established and maintained with a bank.

         "Documents" shall have the meaning assigned to that term under the UCC,
and shall include any and all Documents whether now owned or hereafter created
or acquired.

         "Documentation Agent" shall mean PNC Bank, National Association, acting
in its capacity as the documentation agent for the Lenders, or any successor
Documentation Agent appointed pursuant to Section 10.10 of this Agreement.

         "Dollar Equivalent Amount" shall mean, as of any applicable date of
determination, (i) with respect to amounts denominated in U.S. Dollars, the
amount of U.S. Dollars, and (ii) with respect to amounts denominated in a
Foreign Currency, the amount of U.S. Dollars into which such sums could be
converted as determined initially by the Borrowers by reference to the Agent's
Spot Rate of Exchange as of the applicable date of determination (or such other
reasonable method as the Administrative Agent may approve in writing), and
subject to verification and revision by the Administrative Agent.

         "Duty Deferment Bond" shall mean that certain Duty Deferment Bond
issued by First Union National Bank, London Branch for the benefit of H.M.
Customs and Excise on behalf of ARL in the original principal amount of Forty
Thousand British Pounds Sterling (40,000(pound)), as modified, amended,
increased or decreased pursuant to the terms of this Agreement.

         "EBITDA" shall mean, as of the date of any determination, the
Borrowers' net earnings (or loss) after taxes, plus interest expense, plus all
charges against income for foreign, federal, state and local income taxes, plus
depreciation expense, plus amortization expense, and with respect to
determinations for the four (4) quarters ending September 30, 2001, December 31,
2001, March 31, 2002 and June 30, 2002, plus Twelve Million Five Hundred Two
Thousand and No/100 Dollars ($12,502,000.00) for discontinued operations, all as
determined on a consolidated basis in accordance with GAAP.

         "Eligible ARL Accounts Receivable" shall mean all Receivables which (a)
represent amounts due and owing for products actually delivered or services
actually performed or rendered by or on behalf of ARL to or for the benefit of
an Account Debtor; (b) have been properly billed by ARL; (c) arise in the
ordinary course of ARL's business; (d) are due, owing and not subject to any
defense, set-off or counterclaim; (e) are not final invoices; (f) do not
represent Deferred Revenue (as defined according to GAAP); and (g) are not
otherwise Ineligible Receivables.

         "Eligible Assignee" shall mean any Lender, an affiliate of any Lender,
a Federal Reserve Bank or any other "Qualified Institutional Buyer", as such
term is defined under Rule 144(A), promulgated under the Securities Act of 1933,
as amended.

                                        6



         "Eligible Billed Government Accounts Receivable" shall mean all
Receivables arising from Government Contracts which (a) represent amounts due
and owing for products actually delivered or services actually performed or
rendered by or on behalf of a Borrower pursuant to a Government Contract; (b)
have been properly billed; (c) arise in the ordinary course of the Borrower's
business; (d) are due, owing and not subject to any defense, set-off or
counterclaim; (e) are not final invoices; and (f) are not otherwise Ineligible
Receivables.

         "Eligible Billed Commercial Accounts Receivable" shall mean all
Receivables which (a) represent amounts due and owing for products actually
delivered or services actually performed or rendered by or on behalf of a
Borrower to or for the benefit of an Account Debtor (other than the Government);
(b) have been properly billed; (c) arise in the ordinary course of the
Borrower's business; (d) are due, owing and not subject to any defense, set-off
or counterclaim; (e) are not final invoices; and (f) are not otherwise
Ineligible Receivables.

         "Eligible Unbilled Government Accounts Receivable" shall mean all
Receivables arising from work actually performed by a Borrower pursuant to a
Government Contract which (a) are eligible to be billed to the Government in
accordance with the applicable Government Contract within thirty (30) days of
the "as of" date of the applicable Borrowing Base/Non-Default Certificate (with
no additional performance required by any person, and no condition to payment by
the Government, other than receipt of an appropriate invoice); (b) have not been
billed to the Government solely as a result of timing differences between the
date the revenue is recognized on the Borrower's books and the date the invoice
is actually rendered; (c) represent revenue recognized on the books of the
Borrower not more than ninety (90) days prior to the "as of" date of the
applicable Borrowing Base/Non-Default Certificate as it relates to "milestones"
(with no additional performance required by any person, and no condition to
payment by the Government; i.e., all necessary Government written consents and
approvals have been obtained, whether in connection with a required contract
modification or otherwise); (d) may, in accordance with GAAP, be included as
current assets of the Borrower, even though such amounts have not been billed to
the Government; and (e) are not Ineligible Receivables.

         "Enterprise Resource Planning Operating Lease" shall mean Schedule 1 of
that certain Lease Agreement No. LA-5015 dated December 29, 2000, between the
Parent Company and CG Commercial Funding providing for the ERP/People Soft Human
Resources and Financial Management System.

         "Equipment" shall have the meaning assigned to that term under the UCC,
and shall include any and all of the following, whether now owned or hereafter
acquired and wherever located: machinery and equipment, including processing
equipment, conveyors, machine tools, data processing and computer equipment,
including embedded software and peripheral equipment and all engineering,
processing and manufacturing equipment, office machinery, furniture, materials
handling equipment, tools, attachments, accessories, automotive equipment,
trailers, trucks, forklifts, molds, dies, stamps, motor vehicles, rolling stock
and other equipment of every kind and nature, trade fixtures and fixtures not
forming a part of real property, together with all additions and accessions
thereto, replacements therefor, all parts therefor, all substitutes for any of
the foregoing, fuel therefor, and all manuals, drawings, instructions,
warranties and rights with respect thereto, and all products and proceeds
thereof and condemnation awards and insurance proceeds with respect thereto.

                                        7



         "ERISA" shall have the meaning assigned to such term in Section 5.13(a)
of this Agreement.

         "Euro" shall mean the single currency to which the Participating Member
States of the European Union are or have converted.

         "Event of Default" shall have the meaning assigned to such term in
Section 9.1 of this Agreement.

         "Excess Cash Event" shall mean (i) any sale or disposition of any of
the assets of any Borrower which is (a) not in the ordinary course of business;
or (b) prohibited by the terms of this Agreement; (ii) the issuance by any
Borrower after the date of this Agreement of debt securities or other debt
obligations (other than in connection with debt expressly permitted pursuant to
Section 7.7 of this Agreement); (iii) the receipt by or on behalf of any
Borrower of insurance proceeds (other than recoveries due to damage to property,
which recoveries are promptly applied toward repair or replacement of the
damaged property, or recoveries for business interruption loss or workers
compensation insurance proceeds); (iv) the reversion of any pension plan assets;
and/or (v) any other extraordinary cash event resulting in excess cash to a
Borrower, including, without limitation, cash proceeds resulting from the
issuance of additional equity interests or capital stock by a Borrower (other
than the issuance of additional equity interests or capital stock by a Borrower
pursuant to an Approved ESOP or an Approved ESPP).

         "Facility" or "Facilities" shall mean Facility A, Facility B and/or the
Swing Line Facility, individually or collectively, as the context may require.

         "Facility A" shall mean the revolving credit facility being extended
pursuant to this Agreement on the basis of Eligible Billed Government Accounts
Receivable, Eligible Billed Commercial Accounts Receivable, Eligible Unbilled
Government Accounts Receivable and Eligible ARL Accounts Receivable, in the
maximum principal amount of Sixty-five Million and No/100 Dollars
($65,000,000.00), with a sub-limit of Ten Million and No/100 Dollars
($10,000,000.00) for Letters of Credit.

         "Facility A Commitment Amount" shall mean Sixty-five Million and No/100
Dollars ($65,000,000.00), or if such amount shall be reduced pursuant to this
Agreement, such lesser amount.

         "Facility A Commitment Fee" shall have the meaning assigned to such
term in Section 1.7(b) of this Agreement.

         "Facility B" shall mean the term loan being extended pursuant to this
Agreement, in the original principal amount of Six Million Four Hundred Thousand
and No/100 Dollars ($6,400,000.00).

         "Facility B Commitment Amount" shall mean Six Million Four Hundred
Thousand and No/100 Dollars ($6,400,000.00).

         "Federal Funds Rate" for any day shall mean the rate per annum (rounded
upward to the nearest 1/8 of 1%) determined by the Administrative Agent to be
the rate per annum announced by the Federal Reserve Bank of New York (or any
successor) on such day as being

                                        8



the weighted average of the rates on overnight Federal Funds transactions
arranged by Federal Funds brokers on the previous trading day, as computed and
announced by such Federal Reserve Bank (or any successor) in substantially the
same manner as such Federal Reserve Bank computes and announces the weighted
average it refers to as the "Federal Funds Effective Rate" as of the date of
this Agreement; provided that if such Federal Reserve Bank (or its successor)
                --------
does not announce such rate on any day, the "Federal Funds Effective Rate" for
such day shall be the Federal Funds Rate for the last day on which such rate was
announced.

         "First Source Debt" shall have the meaning assigned to that term in
Section 7.7(a) of this Agreement.

         "First Source Debt Credit Agreement" shall mean that certain
Subordinated Credit Agreement dated as of January 9, 1998 by and among the
Parent Company and the other Borrower parties thereto, First Source Financial
LLP, as Agent, and the Financial Institutions named therein.

         "Fixed Charge Coverage Ratio" shall have the meaning assigned to such
term in Section 6.15(b) of this Agreement.

         "Foreign Currency" and "Foreign Currencies" shall mean British Pounds
Sterling issued by the Bank of England and Euros under the European Monetary
Union, individually or collectively as the context may require.

         "GAAP" shall mean generally accepted accounting principles.

         "General Intangibles" shall have the meaning assigned to that term
under the UCC, and shall include any and all of the following, whether now owned
or hereafter created or acquired: all right, title and interest in or under any
contract, all "payment intangibles", as defined in the UCC, customer lists,
licenses, copyrights, trademarks, patents, and all applications therefor and
reissues, extensions or renewals thereof, rights in intellectual property,
interests in partnerships, joint ventures and other business associations,
licenses, permits, copyrights, trade secrets, proprietary or confidential
information, inventions (whether or not patented or patentable), technical
information, procedures, designs, knowledge, know how, software, data bases,
data, skill, expertise, experience, processes, models, drawings, materials and
records, goodwill (including the goodwill associated with any trademark or
trademark license), all rights and claims in or under insurance policies
(including insurance for fire, damage, loss and casualty, whether covering
personal property, real property, tangible rights or intangible rights, all
liability, life, key man and business interruption insurance, and all unearned
premiums), uncertificated securities, choses in action, deposit, checking and
other bank accounts, rights to receive tax refunds and other payments, rights to
receive dividends, distributions, cash, Instruments and other property in
respect of or in exchange for pledged stock and investment property, rights of
indemnification, all books and records, correspondence, credit files, invoices
and other papers, including without limitation all tapes, cards, computer runs
and other papers and documents.

         "Goods" shall have the meaning assigned to that term under the UCC, and
shall include any and all of the following, whether now owned or hereafter
acquired and wherever located: embedded software to the extent included in
"goods" as defined in the UCC,

                                        9



manufactured homes, standing timber that is cut and removed for sale,
"as-extracted collateral" as defined in the UCC, and unborn young of animals.

         "Government" shall mean the United States government or any department,
instrumentality or agency thereof, and any state government or any department,
instrumentality or agency thereof; it being expressly understood and agreed that
the District of Columbia is not included within this definition of Government.

         "Government Contract Assignments" shall have the meaning assigned to
such term in Section 6.11 of this Agreement.

         "Government Contracts" shall mean (i) written contracts between any
Borrower and the Government; and (ii) written subcontracts between any Borrower
and a prime contractor who is providing goods or services to the Government
pursuant to a written contract with the Government (the "Prime Contract"),
provided that the subcontract relates only to goods or services being provided
to the Government pursuant to the Prime Contract.

         "GSE" shall mean GSE Systems, Inc., a Delaware corporation.

         "Hazardous Substance" shall mean, without limitation, any flammable
explosives, radon, radioactive materials, asbestos, urea formaldehyde foam
insulation, polychlorinated biphenyls, petroleum and petroleum products,
methane, hazardous materials, hazardous wastes, hazardous or toxic substances,
pollutants or contaminants as defined in CERCLA, HMTA, RCRA or any other
applicable environmental law, rule, order or regulation.

         "Hazardous Wastes" shall mean, without limitation, all waste materials
subject to regulation under CERCLA, RCRA or analogous state law, and/or any
other applicable Federal and/or state law now in force or hereafter enacted
relating to hazardous waste treatment or disposal.

         "Hedging Contracts" shall mean interest rate swap agreements, interest
rate cap agreements and interest rate collar agreements, or any other agreements
or arrangements entered into between any Borrower and the Administrative Agent
or a Lender and designed to protect such Borrower against fluctuations in
interest rates or currency exchange rates.

         "Hedging Obligations" shall mean all liabilities of any and all
Borrowers to the Administrative Agent or a Lender under Hedging Contracts.

         "HMTA" shall mean the Hazardous Materials Transportation Act, as
amended (49 U.S.C. Sections 1801 et seq.)
                                 ------

         "Ineligible Receivables" shall mean Receivables which are (1) evidenced
by a promissory note or similar instrument; (2) owed or payable by an Account
Debtor pursuant to a Commercial Contract, if payment of fifty percent (50%) or
more of the aggregate balance due from such Account Debtor is outstanding for
more than ninety (90) days from the date of original invoice; (3) owed or
payable by an Account Debtor pursuant to a Government Contract, if the payment
of fifty percent (50%) or more of the aggregate balance due from such Account
Debtor is outstanding for more than one hundred twenty (120) days from the date
of original invoice; (4) owing from any person that is the subject of any (a)
suit, lien, levy or judgment which could

                                       10



reasonably be expected to affect the collectibility of said account(s), or (b)
bankruptcy, insolvency or a similar process or proceeding; (5) owing from
foreign Account Debtors, unless otherwise deemed eligible by the Lenders in
their sole discretion; (6) unbilled as a result of rate variances, retainage
provisions, "milestone" requirements or any other reason, except for timing
differences expressly permitted under the definition of Eligible Unbilled
Government Accounts Receivable; (7) final invoices; or (8) bonded accounts
receivable. Additionally, without limiting any other provision of this
Agreement, or the discretion of the Administrative Agent or the Lenders to deem
Receivables ineligible pursuant to any other provision of this Agreement, it is
expressly understood and agreed that if any Borrower (i) has been debarred or
suspended by the Government, or been issued a notice of proposed debarment or
notice of proposed suspension by the Government; (ii) is the subject of a
Government investigation (other than a normal and customary review by the
Government) involving or possibly involving fraud, willful misconduct or other
wrongdoing, and which could result in criminal liability, liability or expense
in excess of Five Hundred Thousand and No/100 Dollars ($500,000.00), suspension,
debarment or any other adverse administrative action; (iii) is a party to any
Government Contract which has been actually terminated due to such Borrower's
alleged fraud, willful misconduct or any other wrongdoing; (iv) is a party to
any Government Contract which has been actually terminated for any other reason
whatsoever, which could result in liability or expense in excess of Five Hundred
Thousand and No/100 Dollars ($500,000.00); or (v) has been issued a cure notice
or show cause notice under any Government Contract involving amounts in excess
of Five Hundred Thousand and No/100 Dollars ($500,000.00), and has failed to
cure the default giving rise to such cure notice or failed to resolve the matter
set forth in the show cause notice (a) within the time period available to such
Borrower pursuant to such Government Contract and/or such notice, or (b) before
the date on which the Government or other contracting party is entitled to
exercise its rights and remedies under the Government Contract as a consequence
of such default or matter set forth in the show cause notice, then in any such
event, any and all Receivables of such Borrower may, in the sole but reasonable
discretion of the Administrative Agent, be deemed and treated by the Lenders as
Ineligible Receivables.

         "Instrument" shall have the meaning assigned to that term under the
UCC, and shall include any and all of the following, whether now owned or
hereafter acquired and wherever located: all certificates of deposit, and all
"promissory notes", as defined in the UCC, and other evidences of indebtedness,
other than instruments that constitute, or are a part of a group of writings
that constitute, Chattel Paper.

         "Interest Expense" shall mean, as of the date of any determination, the
Borrowers' aggregate cash interest expense for borrowed money (including,
without limitation, premiums and interest expense arising from or relating to
interest rate protection agreements and original issue discounts), plus the
amount of all other interest due (whether paid or not paid) on any indebtedness
of each Borrower for the applicable measurement period, all as determined on a
consolidated basis in accordance with GAAP.

         "Interest Payment Date" shall mean, relative to any LIBOR Rate Loan
having an Interest Period of three months or less, the last Business Day of such
Interest Period, and as to any LIBOR Rate Loan having an Interest Period longer
than three months, each Business Day which is three months, or a whole multiple
thereof, after the first day of such Interest Period and the last day of such
Interest Period.

                                       11


         "Interest Period" shall mean, relative to any LIBOR Rate Loans, (i)
initially, the period beginning on (and including) the date on which such LIBOR
Rate Loan is made or continued as, or converted into, a LIBOR Rate Loan pursuant
to this Agreement (including, without limitation, Exhibit 3 hereto) and the
                                                  ---------
Notes and ending on (but excluding) the day which numerically corresponds to
such date one, three or six months thereafter (or, if such month has no
numerically corresponding day, on the last Business Day of such month), in each
case as the Borrower may select in its notice pursuant to this Agreement
(including, without limitation, Exhibit 3 hereto) and the Notes; and (ii)
                                ---------
thereafter, each period commencing on the last day of the next preceding
Interest Period applicable to such LIBOR Rate Loan and ending one, three or six
months thereafter, as selected by the Borrower by irrevocable notice to the Bank
not less than two (2) Business Days prior to the last day of the then current
Interest Period with respect thereto.

         "Inventory" shall have the meaning assigned to that term under the UCC,
and shall include any and all of the following, whether now owned or hereafter
acquired and wherever located: all inventory, merchandise, goods and other
personal property for sale or lease or are furnished or are to be furnished
under a contract of service, or that constitute raw materials, work in process,
finished goods, returned goods, or materials or supplies of any kind, nature or
description used or consumed or to be used or consumed or in the processing,
production, packaging, promotion, delivery or shipping of the same, including
all supplies and embedded software.

         "Investment Property" shall have the meaning assigned to that term
under the UCC, and shall include any and all of the following, whether now owned
or hereafter acquired: (a) all securities, whether certificated or
uncertificated, including stocks, bonds, interests in limited liability
companies, partnership interests, treasuries, certificates of deposit, and
mutual fund shares; (b) all Securities Entitlements, including the rights to any
securities account and the financial assets held by a securities intermediary in
such securities account and any free credit balance or other money owing by any
securities intermediary with respect to that account; (c) all securities
accounts; (d) all commodity contracts; and (e) all commodity accounts.

         "Joinder Agreement" shall have the meaning assigned to such term in
Section 1.10 of this Agreement.

         "Lender" and "Lenders" shall mean, respectively, each and all of the
banking or financial institutions which have (i) extended credit to the
Borrowers pursuant to this Agreement, and/or (ii) agreed in writing to be bound
by the terms and provisions of this Agreement.

         "Letter of Credit" and "Letters of Credit" shall mean, respectively,
each and all of the standby letters of credit issued pursuant to this Agreement.

         "Letter of Credit Application" shall have the meaning assigned to such
term in Section 2.1 of this Agreement.

         "Letter of Credit Administration Fee" shall have the meaning assigned
to such term in Section 2.3 of this Agreement.

         "Letter of Credit Fee" shall have the meaning assigned to such term in
Section 2.3 of this Agreement.

                                       12



         "Letter of Credit Rights" shall have the meaning assigned to that term
under the UCC, and shall include any and all of the following, whether now owned
or hereafter acquired: any right to payment or performance under a letter of
credit, whether or not the beneficiary has demanded or is at the time entitled
to demand payment or performance, but specifically excludes any right of a
beneficiary to demand payment or performance under a letter of credit.

         "LIBOR" or "LIBOR Rate" shall mean relative to any Interest Period for
LIBOR Rate Loans, the offered rate for deposits of U.S. Dollars in an amount
approximately equal to the amount of the requested LIBOR Rate Loan for a term
coextensive with the designated Interest Period which the British Bankers'
Association fixes as its LIBOR rate and which appears on the Telerate Page 3750
as of 11:00 a.m. London time on the day which is two London Banking Days prior
to the beginning of such Interest Period.

         "LIBOR Election Form and Certification" shall mean the form attached as
Exhibit 2 hereto.
- ---------

         "LIBOR Rate Loan" shall mean any loan or advance, the rate of interest
applicable to which is based upon the LIBOR Rate.

         "LIBOR Lending Rate" shall mean, relative to any LIBOR Rate Loan to be
made, continued or maintained as, or converted into, a LIBOR Rate Loan for any
Interest Period, a rate per annum determined pursuant to the following formula:

            LIBOR Lending Rate          =            LIBOR Rate
                                                     ----------
                                               (1.00 - LIBOR Reserve Percentage)

         "LIBOR Reserve Percentage" shall mean, relative to any day of any
Interest Period for LIBOR Rate Loans, the maximum aggregate (without
duplication) of the rates (expressed as a decimal fraction) of reserve
requirements (including all basic, emergency, supplemental, marginal and other
reserves and taking into account any transitional adjustments or other scheduled
changes in reserve requirements) under any regulations of the Board of Governors
of the Federal Reserve System (the "Board") or other governmental authority
having jurisdiction with respect thereto as issued from time to time and then
applicable to assets or liabilities consisting of "Eurocurrency Liabilities", as
currently defined in Regulation D of the Board, having a term approximately
equal or comparable to such Interest Period.

         "Loan" shall mean the loans made by the Lenders to the Borrowers in the
aggregate maximum principal amount of Seventy-one Million Four Hundred Thousand
and No/100 Dollars ($71,400,000.00), or so much thereof as shall be advanced or
readvanced from time to time, which are represented by the Facilities, and which
shall be evidenced by, bear interest and be payable in accordance with the terms
and provisions set forth in the Notes.

         "Loan Document" and "Loan Documents" shall mean, respectively, each and
all of this Agreement, the Notes, the Stock Security Agreements and each other
document, instrument, agreement or certificate heretofore, now or hereafter
executed and delivered by any Borrower in connection with the Loan.

         "London Banking Day" shall mean a day on which dealings in US dollar
deposits are transacted in the London interbank market.

                                       13



         "Mandatory Payments" shall mean the mandatory payments required to be
made on the Loan pursuant to Section 1.5 of this Agreement.

         "ManTech Europe" shall have the meaning assigned to such term in
Section 3.1 of this Agreement.

         "Material Contract" shall mean any and all Government Contracts and/or
other contracts or agreements of any Borrower(s) involving amounts, in the
aggregate, in excess of the Dollar Equivalent Amount of Five Million and No/100
Dollars ($5,000,000.00).

         "Maturity Date" shall mean December 31, 2004 or such other date as may
be agreed to by the Administrative Agent, the Lenders and the Borrowers in
writing.

         "Maximum Borrowing Base" shall have the meaning assigned to such term
in Section 1.3 of this Agreement.

         "Net Cash" shall mean cash proceeds (net of cash taxes paid and
reasonable and customary costs paid to unrelated and unaffiliated third parties
in connection with a particular transaction) arising from any Excess Cash Event.

         "Note" and "Notes" shall mean, respectively, each and all of the
promissory notes executed, issued and delivered pursuant to this Agreement,
together with all extensions, renewals, modifications, replacements and
substitutions thereof and therefor.

         "NSI" shall mean NSI Technology Services Corporation, a California
corporation, together with its successors and assigns.

         "Obligation" and "Obligations" shall mean, respectively, any and all
obligations or liabilities of any Borrower to any Lender or any Agent in
connection with the Loan, whether now existing or hereafter created or arising,
direct or indirect, matured or unmatured, and whether absolute or contingent,
joint, several or joint and several, and no matter how the same may be evidenced
or shall arise.

         "Ordinary Course Payments" shall mean payments made directly by a
Borrower to any non-Borrower subsidiary or affiliate; provided that that such
payments are made (i) in the ordinary course of such Borrower's business, (ii)
for products actually delivered or services actually performed, and (iii)
pursuant to an "arm's length" transaction (i.e., a transaction that would
otherwise be made with an unrelated and unaffiliated third party).

         "Parent Company" shall mean ManTech International Corporation, a New
Jersey corporation, together with its successors and assigns.

         "Pedersen" shall mean George J. Pedersen, during his life as long as he
is legally competent, and thereafter Marilyn Pedersen during her life as long as
she is legally competent, and thereafter the Pedersen Family Trust.

         "Pedersen Entity" shall mean any entity in which Pedersen owns and
holds at least fifty-one percent (51%) of the voting stock (and has both
majority and effective control).

                                       14



         "Pension Plan" or "Pension Plans" shall have the meaning assigned to
such term in Section 5.13(a) of this Agreement.

         "Percentage" shall mean with respect to each Lender, the percentage set
forth below such Lender's name on Schedule 1 to this Agreement in respect of the
                                  ----------
Commitment Amount, the Facility A Commitment Amount, the Facility B Commitment
Amount and/or the Swing Line Commitment Amount (as the context may require), as
the same may be modified or amended from time to time.

         "Permitted Liens" shall mean: (a) liens for taxes which are being
contested in good faith and by appropriate proceedings, which (i) the Borrower
has the financial ability to pay, including penalties and interest, and (ii) the
non-payment thereof will not result in the execution of any such tax lien or
otherwise jeopardize the interests of the Administrative Agent and/or the
Lenders in any part of the Collateral; (b) deposits or pledges to secure
obligations under workers' compensation, social security or similar laws,
incurred in the ordinary course of business; (c) liens securing indebtedness of
the Borrowers permitted by Section 7.7 of this Agreement; (d) cash deposits
pledged to secure the performance of bids, tenders, contracts (other than
contracts for the payment of money), leases, statutory obligations, surety and
appeal bonds and other obligations of like nature made in the ordinary course of
business; (e) mechanics', workmen's, repairmen's, warehousemen's, vendors' or
carriers' liens or other similar liens; provided that such liens arise in the
ordinary course of the Borrowers' business and secure sums which are not past
due, or which are separately secured by cash deposits or pledges in an amount
adequate to obtain the release of such liens; (f) except as otherwise provided
in this Agreement, statutory or contractual landlord's liens on the Borrower's
tangible personal property located in the demised premises; (g) zoning or other
similar and customary land use restrictions, which do not materially impair the
use or value of the subject property; (h) judgment liens which are not
prohibited by Section 7.4 of this Agreement; (i) other liens expressly permitted
by the terms and provisions of this Agreement; and (j) liens in favor of the
Administrative Agent.

         "Permitted Offering" shall have the meaning assigned to that term in
Section 1.5 of this Agreement.

         "PNC" shall mean PNC Bank, National Association, a national banking
association, acting individually, together with its successors and assigns.

         "Praxa" shall mean Praxa Limited, a company organized and existing
under the laws of the Commonwealth of Australia.

         "Prime Rate" shall mean the rate of interest from time to time
established and publicly announced by Citizens Bank as its prime rate, in
Citizens Bank's sole discretion, which rate of interest may be greater or less
than other interest rates charged by Citizens Bank to other borrowers and is not
solely based or dependent upon the interest rate which Citizens Bank may charge
any particular borrower or class of borrowers.

         "Proceeds" shall have the meaning assigned to that term under the UCC
or under other applicable law, and, in any event, shall include, but shall not
be limited to, any and all of the following, whether now owned or hereafter
acquired: (i) any and all proceeds of, or amounts (in any form whatsoever,
whether cash, securities, property or other assets) received under or

                                       15



with respect to, any insurance, indemnity, warranty or guaranty payable from
time to time, and claims for insurance, indemnity, warranty or guaranty effected
or held with respect to any of the Collateral, (ii) any and all payments (in any
form whatsoever, whether cash, securities, property or other assets) made or due
and payable from time to time in connection with any requisition, confiscation,
condemnation, seizure or forfeiture of all or any part of the Collateral by any
governmental authority (or any person acting under color of governmental
authority), (iii) any claim against third parties (a) for past, present or
future infringement of any patent or patent license, or (b) for past, present or
future infringement or dilution of any copyright, copyright license, trademark
or trademark license, or for injury to the goodwill associated with any
trademark or trademark license, (iv) any recoveries against third parties with
respect to any litigation or dispute concerning any of the Collateral including
claims arising out of the loss or nonconformity of, interference with the use
of, defects in, or infringement of rights in, or damage to, Collateral, (v) all
amounts collected on, or distributed on account of, other Collateral, including
dividends, interest, distributions and Instruments with respect to Investment
Property and pledged stock, and (vi) any and all other amounts (in any form
whatsoever, whether cash, securities, property or other assets) from time to
time paid or payable under or in connection with any of the Collateral (whether
or not in connection with the sale, lease, license, exchange or other
disposition of the Collateral).

         "RCRA" shall mean the Resource Conservation and Recovery Act, as
amended (42 U.S.C. Sections 6901 et. seq.).
                                 --- ---

         "Receivables" shall mean all of the Borrowers' present and future
accounts, contracts, contract rights, chattel paper, general intangibles, notes,
drafts, acceptances, chattel mortgages, conditional sale contracts, bailment
leases, security agreements, contribution rights and other forms of obligations
now or hereafter arising out of or acquired in the course of or in connection
with any business the Borrowers conduct, together with all liens, guaranties,
securities, rights, remedies and privileges pertaining to any of the foregoing,
whether now existing or hereafter created or arising, and all rights with
respect to returned and repossessed items of inventory.

         "Request for Advance and Certification" shall mean the form Request for
Advance and Certification attached as Exhibit 1 hereto.
                                      ---------

         "Required Lenders" shall mean all of the Lenders who at any given time,
are not in default under or in breach of any of the terms and conditions of this
Agreement applicable to such Lender, and who hold Notes or participation
interests representing, in the aggregate, at least fifty-one percent (51%) of
the aggregate Commitment Amount (excluding the Swing Line Commitment Amount).

         "Restructuring Fee" shall have the meaning assigned to such term in
Section 1.7(a) of this Agreement.

         "Revolver Notes" shall mean each and all of the promissory notes
executed, issued and delivered pursuant to this Agreement in connection with
Facility A, together with all extensions, renewals, modifications, replacements
and substitutions thereof and therefor.

                                       16



         "Security Entitlements" shall have the meaning to that term under the
UCC, and shall include any and all Security Entitlements whether now owned or
hereafter created or acquired.

         "Stock Security Agreements" shall mean each and all of the following
documents, instruments and agreements: (a) Stock Security Agreement dated the
date hereof, by and between the Parent Company and the Administrative Agent, (b)
MAI Stock Security Agreement dated the date hereof between the Administrative
Agent and ManTech Australia International, Inc., (c) ManTech U.K. Systems
Corporation Stock Security Agreement dated the date hereof, between the
Administrative Agent and ManTech U.K. Systems Corporation, (d) any and all stock
security agreements now or hereafter executed and delivered by a Borrower as
security for repayment of the Loan, and (e) any and all amendments and/or
modifications of any of the foregoing stock security agreements.

         "Supporting Obligations" shall have the meaning assigned to that term
under the UCC, and shall include any and all of the following, whether now owned
or hereafter acquired: any and all letter of credit rights or secondary
obligations that support the payment or performance of an Account, Chattel
Paper, Document, General Intangible, Instrument or Investment Property.

         "Swing Line Commitment" shall mean the Swing Line Lender's obligation
to make Swing Line Loans to the Borrowers in the aggregate principal amount not
to exceed Ten Million and No/100 Dollars ($10,000,000.00).

         "Swing Line Commitment Amount" shall mean Ten Million and No/100
Dollars ($10,000,000.00).

         "Swing Line Commitment Period" shall mean the period commencing on the
Closing Date and ending on the Swing Line Termination Date.

         "Swing Line Facility" shall mean the swing line credit facility being
extended pursuant to this Agreement, in the original maximum principal amount
equal to the Swing Line Commitment Amount.

         "Swing Line Lender" shall mean Citizens Bank.

         "Swing Line Loan" or "Swing Line Loans" shall have the meaning
attributed to such term in Section 1.1(b) of this Agreement.

         "Swing Line Note" shall mean that certain Swing Line Promissory Note of
even date herewith, made by the Borrowers and payable to the order of the Swing
Line Lender, in the maximum principal amount of Ten Million and No/100 Dollars
($10,000,000.00) or so much thereof as shall be advanced, together with all
extensions, renewals, modifications, replacements and substitutions thereof or
therefor.

         "Swing Line Outstandings" shall mean, as of any date of determination,
the aggregate principal amount of all Swing Line Loans then outstanding.

                                       17



         "Swing Line Termination Date" shall mean the fifth (5/th/) Business Day
prior to the Maturity Date, or such earlier date on which the Swing Line Lender
has elected, in its sole and absolute discretion, to terminate the Swing Line
Facility.

         "Total Debt" shall mean the actual amount of borrowed money (including,
without limitation, subordinated debt, capital leases and synthetic leases that
remain unpaid or outstanding as of the date of any determination), plus the
aggregate amount of any and all financial guarantees and the face amount of any
and all outstanding letters of credit, less cash-on-hand; it being understood
and agreed that trade debt incurred in the ordinary course of the Borrower's
business shall not be included in the computation of Total Debt.

         "UCC" shall mean the Uniform Commercial Code as the same may, from time
to time, be enacted and in effect in the Commonwealth of Virginia; provided,
                                                                   --------
that to the extent that the UCC is used to define any term herein and such term
is defined differently in different Articles or Divisions of the UCC, the
definition of such term contained in Article or Division 9 shall govern;
provided further, that in the event that, by reason of mandatory provisions of
- ----------------
law, any or all of the attachment, perfection or priority of, or remedies with
respect to, the Administrative Agent's lien on any Collateral is governed by the
Uniform Commercial Code as enacted and in effect in a jurisdiction other than
the Commonwealth of Virginia, the term "UCC" shall mean the Uniform Commercial
Code as enacted and in effect in such other jurisdiction solely for purposes of
the provisions thereof relating to such attachment, perfection, priority or
remedies and for purposes of definitions related to such provisions.

         "Vobix" shall mean Vobix Corporation, a Virginia corporation.

                                   ARTICLE 1
                                   COMMITMENT

         1.1. Maximum Loan Amount.
              -------------------

              (a) Subject to the terms and conditions of this Agreement, (i)
each Lender severally agrees to make the Loan to the Borrowers (except for the
Swing Line Loan, which shall be extended only by the Swing Line Lender), with
the maximum amount of each Lender's obligation being equal to the Lender's
Percentage of the Commitment Amount; and (ii) as set forth more fully in Section
1.1(b) below, the Swing Line Lender will make the Swing Line Loan to the
Borrowers. The Loan, including the Swing Line Loan, shall bear interest and be
payable in accordance with the terms and provisions of and be initially
evidenced by nine (9) promissory notes, four (4) of which shall evidence
Facility A, four (4) of which shall evidence Facility B and one (1) of which
shall evidence the Swing Line Facility. Concurrent with the Borrowers' execution
of this Agreement, (a) Citizens Bank shall receive a revolving promissory note
in the maximum principal amount of Twenty-four Million Three Hundred
Seventy-five Thousand and No/100 Dollars ($24,375,000.00) or so much thereof as
shall be advanced or readvanced, a term promissory note in the original
principal amount of Two Million Four Hundred Thousand and No/100 Dollars
($2,400,000.00) and the Swing Line Note, (b) PNC shall receive a revolving
promissory note in the maximum principal amount of Sixteen Million Two Hundred
Fifty Thousand and No/100 Dollars ($16,250,000.00) or so much thereof as shall
be advanced or readvanced, and a term promissory note in the original principal
amount of One Million Six

                                       18



Hundred Thousand and No/100 Dollars ($1,600,000.00), (c) BB&T shall receive a
revolving promissory note in the maximum principal amount of Twelve Million Five
Hundred Seventeen Thousand Five Hundred Seven and No/100 Dollars
($12,517,507.00) or so much thereof as shall be advanced or readvanced, and a
term promissory note in the original principal amount of One Million Two Hundred
Thirty-two Thousand Four Hundred Ninety-three and No/100 Dollars
($1,232,493.00), and (d) Chevy Chase shall receive a revolving promissory note
in the maximum principal amount of Eleven Million Eight Hundred Fifty-seven
Thousand Four Hundred Ninety-three and No/100 Dollars ($11,857,493.00) or so
much thereof as shall be advanced or readvanced, and a term promissory note in
the original principal amount of One Million One Hundred Sixty-seven Thousand
Five Hundred Seven and No/100 Dollars ($1,167,507.00);

              (b) Subject to the terms and conditions of this Agreement, the
Swing Line Lender shall make swing line loans (each, a "Swing Line Loan" and
collectively, the "Swing Line Loans") to the Borrowers from time to time during
the Swing Line Commitment Period, in the aggregate principal amount at any one
time outstanding not to exceed Ten Million and No/100 Dollars ($10,000,000.00);
provided, however, that at no time may the aggregate outstanding principal
amount of the Swing Line Loans, plus the aggregate outstanding principal amount
of Facility A (including the aggregate face amount of all Letters of Credit
outstanding), plus the Dollar Equivalent Amount of the Duty Deferment Bond
exceed the lesser of the Facility A Commitment Amount, and the applicable
Maximum Borrowing Base. During the Swing Line Commitment Period, the Borrowers
may use the Swing Line Commitment by borrowing, repaying Swing Line Loans in
whole or in part, and reborrowing, all in accordance with the terms of this
Agreement. At the request of the Swing Line Lender, the Administrative Agent
may, at any time, on behalf of the Borrowers (which hereby irrevocably direct
the Administrative Agent to act on their behalf) request each Lender having a
Percentage of Facility A, including the Swing Line Lender, to make, and each
such Lender, including the Swing Line Lender, shall make an advance under
Facility A, in an amount equal to such Lender's Percentage of Facility A, of the
amount of the Swing Line Outstandings as of the date such request is made. In
such event, each such Lender shall make the requested proceeds available to the
Administrative Agent for the account of the Swing Line Lender in accordance with
the funding provisions set forth in this Agreement. The proceeds of Facility A
advanced pursuant to this Section 1.1(b) shall be immediately applied to repay
the Swing Line Outstandings.


         1.2. Use of Proceeds. The Loan shall be used by the Borrowers only for
              ---------------
the following purposes: (i) to refinance certain existing indebtedness of the
Borrowers; and (ii) for working capital and general corporate needs. Each
Borrower agrees that it will not use or permit the Loan proceeds to be used for
any other purpose without the prior written consent of the Administrative Agent.

         1.3. Borrowing Base and Maximum Advances. Notwithstanding any term or
              -----------------------------------
provision of this Agreement or any other Loan Document to the contrary, it is
understood and agreed that in no event whatsoever shall the Lenders be obligated
to advance any amount or issue any Letters of Credit hereunder if such advance
or the issuance of such Letter of Credit would cause the aggregate amount of
outstanding Loans (including Swing Line Outstandings), plus the face amount of
all outstanding Letters of Credit, plus the Dollar Equivalent Amount of the Duty
Deferment Bond, to exceed the following amounts:

                                       19



              (a) as to Facility A, the lesser of:

                     (i)   the Facility A Commitment Amount; or

                     (ii)  the aggregate of (the "Maximum Borrowing Base"):

                           A.     Ninety percent (90%) of Eligible Billed
                                  Government Accounts Receivable, which are
                                  outstanding less than one hundred twenty-one
                                  (121) days from the date of original invoice;
                                  plus

                           B.     Eighty-five percent (85%) of Eligible Billed
                                  Commercial Accounts Receivable, which are
                                  outstanding less than ninety-one (91) days
                                  from the date of original invoice; plus

                           C.     the lesser of (I) Ten Million Dollars
                                  ($10,000,000), or (II) fifty percent (50%) of
                                  Eligible Unbilled Government Accounts
                                  Receivable; plus

                           D.     the lesser of (I) sixty percent (60%) of the
                                  Dollar Equivalent Amount of Eligible ARL
                                  Receivables which are outstanding less than
                                  ninety-one (91) days from the date of original
                                  invoice; or (II) One Million and No/100
                                  Dollars ($1,000,000.00).

                                  Notwithstanding anything to the contrary set
                                  forth herein, it is expressly understood and
                                  agreed that in no event whatsoever shall the
                                  aggregate Dollar Equivalent Amount of
                                  outstanding loans to ARL and Vobix at any time
                                  exceed Six Million and No/100 Dollars
                                  ($6,000,000.00) and Ten Million and No/100
                                  Dollars ($10,000,000.00), respectively.

              (b) as to Facility B, the Facility B Commitment Amount; and

              (c) as to the Swing Line Facility, the lesser of the Swing Line
Facility Commitment Amount or the Maximum Borrowing Base.

All determinations regarding eligibility shall be made by the Lenders.
Determinations regarding eligibility of billed and unbilled Receivables shall be
made in the reasonable discretion of the Administrative Agent; provided,
however, that in the event of any dispute or disagreement as to whether an
unbilled Receivable is, or has ceased to be, eligible pursuant to the terms of
this Agreement, the decision of the Administrative Agent in the exercise of its
sole and absolute discretion shall control.

If at any time the outstanding principal balance of Facility A (including the
maximum aggregate face amount of all outstanding Letters of Credit, plus Swing
Line Outstandings, plus the Dollar

                                       20



Equivalent Amount of the Duty Deferment Bond) exceeds the Maximum Borrowing Base
(such excess being referred to herein as a "Borrowing Base Deficiency"), the
Borrowers shall immediately make a principal payment in the amount of the
Borrowing Base Deficiency; it being expressly understood and agreed that, for
purposes of calculating the Maximum Borrowing Base with respect to Eligible ARL
Accounts Receivable and the Duty Deferment Bond, the Dollar Equivalent Amount
shall be determined as of the date of the applicable Borrowing Base/Non-Default
Certificate.

         1.4. Advances.
              --------

              (a) Agreement to Advance and Readvance; Procedure. So long as no
                  ---------------------------------------------
Event of Default shall have occurred and be continuing, and no act, event or
condition shall have occurred and be continuing which with notice or the lapse
of time, or both, shall constitute an Event of Default, and subject to the terms
and provisions of this Agreement, the Lenders (and the Swing Line Lender, as the
case may be) shall (i) advance and readvance the proceeds of Facility A and the
proceeds of the Swing Line Facility from time to time in accordance with this
Agreement; and (ii) advance the proceeds of Facility B to the Borrowers upon the
Borrowers' execution and delivery of this Agreement and all other documents,
instruments and agreements required by the Lenders in connection herewith.
Requests for advances with respect to Facility A shall be in the form of Exhibit
                                                                         -------
1 hereto, and requests for advances with respect to the Swing Line Facility
- -
shall be in the form of Exhibit 1(a) hereto. Requests for advances of Loan
                        ------------
proceeds with respect to Facility A and the Swing Line Facility may be made via
facsimile on any given Business Day if the Borrowers provide the Administrative
Agent, in advance, with a written list of the names of the specific officers
authorized to request disbursements by facsimile. Upon request by the
Administrative Agent, the Borrowers shall confirm in an original writing each
facsimile request for advance made by any Borrower. Notwithstanding the
foregoing, (a) the Lenders shall have no obligation to make any advance with
respect to Facility A after the Maturity Date; and (b) the Swing Line Lender
shall have no obligation to make any advance with respect to the Swing Line
Facility after the Swing Line Termination Date.

              (b) Interest Rate Election; Certain Advance Procedures and Limits.
                  -------------------------------------------------------------
Amounts advanced in connection with the Loan shall bear interest either on a
Base Rate basis or LIBOR basis, as more fully set forth in the Notes in the
exhibits attached to this Agreement, except that the Swing Line Loans shall only
be made available to the Borrowers on a Base Rate basis. Advances bearing
interest on a Base Rate basis shall be in minimum and incremental amounts of One
Hundred Thousand Dollars ($100,000.00), and shall be made available on a
same-day basis, if requested by 12:00 Noon Washington, D.C. time on a Business
Day. Advances bearing interest on a LIBOR basis shall also be in minimum and
incremental amounts of One Hundred Thousand Dollars ($100,000.00), and shall be
made available not less than two (2) Business Days nor more than five (5)
Business Days after request therefor. The Borrowers' right to request LIBOR
based interest, as well as certain additional terms, conditions and requirements
relating thereto, are set forth in the Notes and in the exhibits attached to
this Agreement, and each Borrower expressly acknowledges and consents to such
additional terms and provisions.

         1.5. Additional Mandatory Payments; Reduction of Commitment. In
              ------------------------------------------------------
addition to all other sums payable by the Borrowers pursuant to any of the
Notes, this Agreement or any other Loan Document, the Borrowers shall also make
mandatory payments on the Notes (applied

                                       21



first to amounts outstanding under Facility B, then to Swing Line Outstandings
(if any), and then to amounts outstanding under Facility A, as provided herein
below), upon the occurrence of any Excess Cash Event. Notwithstanding the
foregoing, no mandatory payment shall be due and payable unless the Net Cash
arising from any Excess Cash Event occurring in any fiscal year, when aggregated
with all other Excess Cash Events occurring during fiscal year, exceeds the
Annual Excess Cash Limitation, in which event the amount of such mandatory
payment shall be equal to the amount by which the Net Cash arising from such
Excess Cash Event exceeds the Annual Excess Cash Limitation. In the event any
payment(s) made or required to be made by the Borrowers pursuant to this Section
1.5 shall be applied to Facility A (i.e., all amounts outstanding under Facility
B and Swing Line Outstandings (if any) shall have been paid and satisfied in
full), the Facility A Commitment Amount shall be reduced by an amount equal to
such payment; provided, however, that no such reduction in the Facility A
Commitment Amount shall occur until the aggregate amount of such mandatory
payments during any fiscal year exceeds Two Million and No/100 Dollars
($2,000,000.00) or the aggregate amount of such mandatory payments during the
loan term exceeds Five Million Five Hundred Thousand and No/100 Dollars
($5,500,000.00), whichever occurs first, in which event the Facility A
Commitment Amount shall only be reduced to the extent the aggregate amount of
such mandatory payments during such fiscal year exceeds Two Million and No/100
Dollars ($2,000,000.00) or to the extent the amount of such mandatory payments
during the loan term exceeds Five Million Five Hundred Thousand and No/100
Dollars ($5,500,000.00), as applicable. Furthermore, in the event that any
Borrower issues additional equity interests or capital stock in accordance with
Section 7.1(a) of this Agreement (a "Permitted Offering") and the Net Cash
thereof shall have been used to pay and satisfy in full all amounts outstanding
under Facility B and Swing Line Outstandings (if any), then so long as no Event
of Default shall have occurred and be continuing beyond any applicable notice
and cure period (i) any remaining Net Cash of the Permitted Offering may be used
by the Borrowers to repay the First Source Debt in full before having to apply
remaining Net Cash of the Permitted Offering to amounts outstanding under
Facility A, (ii) the Borrowers shall not be obligated to make any mandatory
payment on amounts then outstanding under Facility A unless, at the time of the
Permitted Offering, the then outstanding principal balance of Facility A exceeds
Twenty-five Million and No/100 Dollars ($25,000,000.00), in which event the
mandatory payment shall be in an amount equal to such excess, and (iii) to the
extent any remaining Net Cash of the Permitted Offering shall be applied to
amounts outstanding under Facility A pursuant to this Section 1.5, no such
reduction in the Facility A Commitment Amount shall be required.

         1.6. Field Audits. The Administrative Agent has the right at any time
              ------------
and in its sole discretion to conduct field audits with respect to the
Collateral and each Borrower's accounts receivable, inventory, business and
operations. All field audits shall be at the cost and expense of the Borrowers;
it being understood and agreed that, in the absence of an Event of Default, the
Borrowers' maximum liability for field audit costs and expenses shall be limited
to the costs and expenses of only one (1) field audit conducted during any
twelve (12) month period (unless the Administrative Agent shall conduct a field
audit pursuant to Section 1.10 of this Agreement in connection with the joinder
of a new "Borrower" hereunder, in which event the Borrowers shall be liable for
the costs and expenses of such field audit as well). Any and all field audits
conducted following an Event of Default shall be at the Borrowers' cost and
expense, with the foregoing limitation on maximum costs and expense being
inapplicable.

                                       22



         1.7. Certain Fees. In addition to principal, interest and other sums
              ------------
payable under the Notes, the Borrowers shall pay the following fees:

              (a) Restructuring Fee. Simultaneously with the execution of this
                  -----------------
Agreement, the Borrowers shall pay to the Administrative Agent, for the benefit
of all Lenders pro-rata based on each Lender's Percentage, a Loan restructuring
fee (the "Restructuring Fee") in the aggregate amount of Three Hundred
Fifty-seven Thousand and No/100 Dollars ($357,000.00).

              (b) Commitment Fee. So long as any amounts remain outstanding in
                  --------------
connection with the Facility, or the Lenders have any obligation to make any
advance in connection therewith, the Borrowers agree to pay to the
Administrative Agent for the benefit of all Lenders pro-rata based on each
Lender's Percentage, a quarter-annual commitment fee (the "Facility A Commitment
Fee"), at the annual rate corresponding to the Borrower's Total Debt to EBITDA
ratio for the immediately preceding quarter, as set forth on Exhibit 9 hereto,
                                                             ---------
calculated on the difference between (i) the Facility A Commitment Amount, and
(ii) the sum of the average daily outstanding principal balance of Facility A
and the Swing Line Facility during the applicable quarter, plus the aggregate
face amount of all outstanding Letters of Credit during the applicable quarter,
plus the Dollar Equivalent of the Duty Deferment Bond (determined as of the date
of the most recently submitted Borrowing Base/Non-Default Certificate). The
Facility A Commitment Fee shall be calculated on the basis of the actual number
of days elapsed and a three hundred sixty (360) day year, shall be due for any
quarter during which the Lenders have any obligation in connection with the
Facility, and shall be payable in arrears, commencing on December 31, 2001 and
continuing on the last Business Day of every third (3rd) calendar month
thereafter for so long as this Agreement remains in effect.

              (c) Administrative Agent Fee. The Borrowers shall pay to the
                  ------------------------
Administrative Agent, for its own account, a loan administration fee (the
"Administration Fee"), in the amount of Fifty Thousand and No/100 Dollars
($50,000.00) per annum. The Administration Fee shall be due and payable in full
on the date of this Agreement and on each anniversary of the date of this
Agreement.

              (d) Letter of Credit Fees. The Borrowers shall pay any and all
                  ---------------------
Letter of Credit fees as and when such fees become due and payable pursuant to
this Agreement.

              (e) Out-of-Pocket Fees and Expenses. The Borrowers shall be liable
                  -------------------------------
for and shall timely pay all reasonable out-of-pocket costs and expenses
(including reasonable attorneys' fees and expenses of counsel for the
Administrative Agent, and of other special and local counsel and other experts,
if any, engaged by the Administrative Agent) from time to time incurred by the
Administrative Agent in connection with the administration of, preservation of
rights in and enforcement of this Agreement, the other Loan Documents and the
transactions contemplated by this Agreement. Without limiting the generality of
the foregoing, the Borrowers shall be liable for all reasonable out-of-pocket
costs and expenses associated with any and all amendments, waivers and/or
consents relating to any of the Facilities.

         1.8. Intentionally Omitted.
              ---------------------

                                       23



         1.9. Appointment of the Parent Company. Each Borrower acknowledges that
              ---------------------------------
(i) the Lenders have agreed to extend credit to each of the Borrowers on an
integrated basis for the purposes herein set forth; (ii) it is receiving direct
and/or indirect benefits from each such extension of credit; and (iii) the
obligations of the "Borrower" or "Borrowers" under this Agreement are the joint
and several obligations of each Borrower. To facilitate the administration of
the Loan, each Borrower hereby irrevocably appoints the Parent Company as its
true and lawful agent and attorney-in-fact with full power and authority to
execute, deliver and acknowledge on such Borrower's behalf, each Request for
Advance and Certification, Borrowing Base/Non-Default Certificate and all other
Loan Documents or other materials provided or to be provided to any of the
Agents or Lenders pursuant to this Agreement or in connection with the Loan.
This power-of-attorney is coupled with an interest and cannot be revoked,
modified or amended without the prior written consent of the Administrative
Agent. Upon request of the Administrative Agent, each Borrower shall execute,
acknowledge and deliver to the Administrative Agent a form Power of Attorney
confirming and restating the power-of-attorney granted herein.

         1.10. Joinder of New Subsidiaries and Affiliates. Any present or future
               ------------------------------------------
subsidiary of any Borrower in which such Borrower now or hereafter owns,
directly or indirectly, an ownership interest of greater than fifty percent
(50%) shall, unless waived in writing by the Administrative Agent, execute and
deliver to the Administrative Agent (a) a Joinder Agreement in the form attached
hereto as Exhibit 6 (a "Joinder Agreement"), pursuant to which such subsidiary
          ---------
or affiliate shall (i) join in and become a party to this Agreement and the
other Loan Documents; (ii) agree to comply with and be bound by the terms and
conditions of this Agreement and all of the other Loan Documents; and (iii)
become a "Borrower" and thereafter be jointly and severally liable for the
performance of all the past, present and future obligations and liabilities of
the Borrowers hereunder and under the Loan Documents; and (b) such other
documents, instruments and agreements as may be reasonably required by the
Administrative Agent in connection therewith (including, without limitation, an
opinion of counsel), in form and substance acceptable to the Administrative
Agent in all respects. The Borrowers acknowledge and agree that the
Administrative Agent shall have the right, at the Borrowers' cost and expense,
to perform a field audit of the accounts receivable, inventory, business and
operations of any present or future subsidiary or affiliate proposed to be
joined as a "Borrower" hereunder.

                                   ARTICLE 2
                                LETTERS OF CREDIT

         2.1. Issuance. The Borrowers and Lenders acknowledge that from time to
              --------
time the Borrowers may request that Citizens Bank issue or amend Letter(s) of
Credit. Subject to the terms and conditions of this Agreement, and any other
reasonable requirements for letters of credit normally and customarily imposed
by Citizens Bank, Citizens Bank agrees to issue such requested letters of
credit, provided that no Event of Default has occurred and is continuing, and no
act, event or condition which with notice or the passage of time, or both, would
constitute an Event of Default has occurred and is continuing. If any such
Letter(s) of Credit are issued by Citizens Bank, each of the Lenders shall
purchase from Citizens Bank a risk participation with respect to such Letter(s)
of Credit in an amount equal to such Lender's Percentage of such Letter(s) of
Credit. Citizens Bank shall have no obligation to issue any Letter of Credit
which

                                       24



has an expiration date beyond the Maturity Date, unless the Borrowers shall have
deposited with the Administrative Agent, concurrent with the issuance of any
such Letter of Credit, cash security therefor in an amount equal to the face
amount of the Letter of Credit. Any request for a Letter of Credit shall be made
by a Borrower submitting to the Administrative Agent an Application and
Agreement for Letter of Credit or Amendment to Letter of Credit (each being
herein referred to as a "Letter of Credit Application") on Citizens Bank's
standard form, at least three (3) Business Days prior to the date on which the
issuance or amendment of the Letter of Credit shall be required, which Letter of
Credit Application shall be executed by an authorized officer of a Borrower, and
be accompanied by such other supporting documentation and information as the
Administrative Agent may from time to time reasonably request. Each Letter of
Credit Application shall be deemed to govern the terms of issuance of the
subject Letter of Credit, except to the extent inconsistent with the terms of
this Agreement. It is understood and agreed that Letters of Credit shall not be
issued for durations of longer than one (1) year. Any outstanding Letter of
Credit may be renewed from time to time; provided that (i) at least sixty (60)
days' prior written notice thereof shall have been given by the Borrower to the
Administrative Agent; and (ii) no default or Event of Default exists under the
terms and provisions of the particular Letter of Credit or this Agreement.
Letters of Credit issued pursuant to this Agreement may be issued in U.S.
Dollars, Australian Dollars or such other foreign currency as the Administrative
Agent may approve.

         2.2. Amounts Advanced Pursuant to Letters of Credit. Upon the issuance
              ----------------------------------------------
of any Letter(s) of Credit (i) any amounts drawn under any Letter of Credit
shall be deemed advanced ratably under the Revolver Notes, shall bear interest
and be payable in accordance with the terms of the Revolver Notes and shall be
secured by the Collateral (in the same manner as all other sums advanced under
the Revolver Notes); and (ii) each Lender shall purchase from Citizens Bank such
risk participations in the Letter(s) of Credit as shall be necessary to cause
each Lender to share the funding obligations with respect thereto ratably in
accordance with its particular Percentage. It is expressly understood and agreed
that all obligations and liabilities of the Borrowers to Citizens Bank in
connection with any such Letter(s) of Credit shall be deemed to be
"Obligations," and the Administrative Agent shall not be required to release its
security interest in the Collateral until (i) all Notes and all other sums due
to the Lenders in connection with the Loan have been paid and satisfied in full,
(ii) all Letters of Credit have been canceled or expired, and (iii) no Lender
has any further obligation or responsibility to make additional Loan advances or
issue additional Letters of Credit. Furthermore, in no event whatsoever shall
Citizens Bank have any obligation to issue any Letter of Credit which would
cause the face amount of all then outstanding Letters of Credit issued for the
benefit of any or all Borrowers, in the aggregate, to exceed the Dollar
Equivalent Amount of Ten Million and No/100 Dollars ($10,000,000.00), at any
time.

         2.3. Letter of Credit Fees. The Borrowers shall be jointly and
              ---------------------
severally liable for the payment of: (i) to the Lenders ratably, a per annum fee
in the amount of one and three-quarters percent (1.75%) of the Dollar Equivalent
Amount of the average daily undrawn amount of each Letter of Credit issued or
amended pursuant to this Agreement (the "Letter of Credit Fee"), calculated on
the basis of the actual number of days elapsed and a three hundred sixty (360)
day year; and (ii) to the Administrative Agent, customary issuance and
administrative charges (the "Letter of Credit Administration Fee"). The Letter
of Credit Fee shall be due and payable, in advance, on the date the Letter of
Credit is issued or amended, and on the same day

                                       25



of every third (3rd) month thereafter during which such Letter of Credit shall
remain issued or outstanding. The Letter of Credit Administration Fee shall be
due and payable simultaneously with the Administrative Agent's issuance or
amendment of the particular Letter of Credit.

                                   ARTICLE 3
                                    SECURITY

         3.1. Security Generally. As collateral security for the Loan and all
              ------------------
other Obligations, the Borrowers hereby grant and convey to the Administrative
Agent, for the benefit of all of the Lenders ratably, a security interest in all
of the following (collectively, the "Collateral"):

              Receivables. All of each Borrower's present and future Accounts,
              -----------
              contracts, contract rights, Chattel Paper, General Intangibles,
              notes, drafts, acceptances, chattel mortgages, conditional sale
              contracts, bailment leases, security agreements and other forms of
              obligations now or hereafter arising out of or acquired in the
              course of or in connection with any business each Borrower
              conducts, together with all liens, guaranties, securities, rights,
              remedies and privileges pertaining to any of the foregoing,
              whether now existing or hereafter created or arising, and all
              rights with respect to returned and repossessed items of
              inventory;

              Inventory. All of each Borrower's Inventory and Goods now or
              ---------
              hereafter owned by each Borrower, whenever acquired and wherever
              located, and whether held for sale or lease or furnished or to be
              furnished under contracts of service, and all raw materials, work
              in process and materials now or hereafter owned by each Borrower,
              wherever located, and used or consumed in its business, including
              all returned and repossessed items; and all other property now or
              hereafter constituting Inventory;

              Other Collateral. All of each Borrower's Deposit Accounts,
              ----------------
              Documents, Instruments, Investment Property, Letter of Credit
              Rights and Supporting Obligations, whether any of the foregoing
              shall be now owned or hereafter acquired by such Borrower,
              together with all of each Borrower's present and future furniture,
              fixtures, Equipment, machinery, supplies and other assets (other
              than stock, as below provided) and personal property of every type
              or nature whatsoever, including without limitation, all of each
              Borrower's present and future inventions, designs, patents, patent
              applications, trademarks, trademark applications, trade names,
              trade secrets, goodwill, registrations, copyrights, licenses,
              franchises, customer lists, tax refunds, tax refund claims, rights
              of claims against carriers and shippers, leases and rights to
              indemnification;

              Stock. All of each Borrower's right, title and interest in and to
              -----
              the issued and outstanding capital stock standing in such
              Borrower's name on the books of (i) GSE, (ii) Praxa, (iii) ManTech
              Australia International, Inc., a Virginia corporation, and (iv)
              ManTech Europe, Ltd., a private company

                                       26


              registered in England under No. 2497488 formerly known as Spurland
              Limited ("ManTech Europe"), in each case, whether common and/or
              preferred, and whether now or hereafter issued or outstanding and
              whether now or hereafter acquired by the Borrowers, together with
              all voting or other rights appurtenant thereto, including, without
              limitation, the right to receive all dividends and/or
              distributions, and all proceeds thereof, pursuant to the terms and
              conditions of the Stock Security Agreements;

              Leases. All of each Borrower's present and future right, title and
              ------
              interest in and to any and all leases, occupancy agreements,
              subleases, contracts, licenses, agreements and other
              understandings of or relating to the use, enjoyment and occupancy
              of real property or any improvements thereon.

              Records. All of each Borrower's records, documents and files, in
              -------
              whatever form, pertaining to the Collateral; and

              Proceeds, Etc. Any and all Proceeds, whether cash or non-cash
              -------------
              proceeds, and all increases, substitutions, replacements and/or
              additions to any or all of the foregoing.

              Notwithstanding the foregoing, the above described conveyance
shall not be deemed to include the conveyance of (A) any Government Contract or
other contractual agreement, which by its terms or applicable law may not be
conveyed; it being understood, however, that in any such situation(s), the
Administrative Agent's security interest shall include (i) the entirety of each
Borrower's right, title and interest in and to all accounts receivable and all
other Proceeds directly or indirectly arising from such Government Contract or
other contractual agreement, and (ii) all other rights and interests which any
Borrower may lawfully convey to the Administrative Agent; (B) any stock of a
foreign corporation (other than ManTech Europe) in excess of sixty-six percent
(66%) of all of the issued and outstanding stock of such foreign corporation, or
any other stock or equity interests owned by any Borrower (other than the stock
specifically referenced in this Section above and other stock from time to time
pledged as collateral for the Loan); (C) motor vehicles titled in the name of
any Borrower; and (D) interests in real property owned by any Borrower.

              3.2. No Preference or Priority. It is expressly understood and
                   -------------------------
agreed that each of the Notes shall be secured without preference or priority;
it being the intention of the parties that the Notes shall be co-equal and
coordinate in right of payment of principal, interest, late charges and other
sums due thereunder.

                                   ARTICLE 4
                     CONDITIONS TO THE LENDERS' OBLIGATIONS

              The initial performance of the Lenders' obligations under this
Agreement shall be subject to the following conditions:

              4.1. Compliance with Law and Agreements; Third Party Consents. The
                    -------------------------------------------------------
Lenders shall be reasonably satisfied that (a) the Loan shall be in full
compliance with all legal

                                       27



requirements, (b) all regulatory and third party consents and approvals required
to be obtained have been obtained, and (c) the Borrowers shall have performed
all agreements theretofore to be performed by the Borrowers.

         4.2. Financial Condition. There shall have been no material adverse
              -------------------
change in the financial condition of the Borrowers, in the aggregate, between
the date of the most recent financial statement(s) delivered to the Lenders and
the date hereof.

         4.3. Opinion of Counsel. The Administrative Agent shall have received
              ------------------
an opinion of Borrowers' counsel with respect to each of the Borrowers (other
than the Borrowers listed on Schedule 4.3 hereto), in form and substance
                             ------------
satisfactory to the Administrative Agent and its counsel.

         4.4. No Default. There shall exist no Event of Default, and no act,
              ----------
event or condition shall have occurred which with notice or the lapse of time,
or both, would constitute an Event of Default.

         4.5. Documentation. The Administrative Agent shall have received an
              -------------
initial Borrowing Base/Non-Default Certificate, the "basket calculation"
statement, in the form required pursuant to Section 6.3(b) of this Agreement,
and such certificates of good standing, corporate resolutions, government
contract assignments, UCC financing statements, opinions, certifications,
schedules to be attached to this Agreement and such other documents, instruments
and agreements as may be reasonably required by the Lenders or the
Administrative Agent, in such form and content and from such parties, as the
Lenders shall require. All documentation relating to the Loan and all related
transactions must be satisfactory in all respects to the Lenders, and their
counsel.

         4.6. Closing Costs and Expenses. The Borrowers shall have paid all fees
              --------------------------
payable to the Administrative Agent and/or the Lenders, plus all closing costs
and expenses incurred by the Administrative Agent in connection with the
transactions contemplated hereby, including, without limitation, all recording
costs.

                                   ARTICLE 5
                         REPRESENTATIONS AND WARRANTIES

         To induce the Lenders to enter into this Agreement, each Borrower
jointly and severally represents, warrants, covenants and agrees as follows:


         5.1. Corporate Existence and Qualification. Each Borrower is a
              -------------------------------------
corporation duly organized, validly existing and in good standing under the laws
of its state of incorporation referenced in the preamble of this Agreement, with
all corporate power and authority and all necessary licenses and permits to own,
operate and lease its properties and carry on its business as now being
conducted, and as it may in the future be conducted. Each Borrower has only one
(1) jurisdiction of incorporation. Each Borrower is duly qualified and
authorized to do business and is in good standing in each jurisdiction in which
the nature of its activities or the character of its properties makes
qualification necessary.

                                       28



         5.2. Corporate Authority; Noncontravention. The execution, delivery and
              -------------------------------------
performance of the obligations of each Borrower set forth in this Agreement, the
Notes and the other Loan Documents (i) have been duly authorized by all
necessary corporate and/or stockholder action; (ii) do not require the consent
of any governmental body, agency or authority; (iii) will not violate or result
in (and with notice or the lapse of time will not violate or result in) the
breach of any provision of any Borrower's Articles/Certificate of Incorporation
or By-laws, any material indenture, instrument, agreement or other undertaking
to which any Borrower is a party or by which any Borrower is bound, or any order
or regulation of any governmental authority or arbitration board or tribunal;
and (iv) except as permitted by the terms and provisions of this Agreement, will
not result in the creation of a lien, charge or encumbrance of any nature upon
any of the properties or assets of any Borrower. When the Loan Documents are
executed and delivered, they will constitute legal, valid and binding
obligations of each Borrower, enforceable against each Borrower in accordance
with their respective terms, subject to applicable bankruptcy, insolvency and
other similar laws affecting the rights of creditors generally.

         5.3. Financial Position. The financial statements listed on Exhibit 7
              ------------------                                     ---------
hereto, copies of which have been delivered to the Lenders, present fairly the
financial condition of the Borrowers as of the date thereof and the results of
the Borrowers' operations for the periods indicated therein, were prepared in
accordance with GAAP, are true and accurate in all material respects, and are
not misleading in any material respect. All material liabilities, fixed or
contingent, are fully shown or provided for on the referenced financial
statements or the notes thereto as of the dates thereof. There has been no
material adverse change in the business, property or condition (financial or
otherwise) of the Borrowers since the date of the most recent financial
statements listed on Exhibit 7.
                     ---------

         5.4. Payment of Taxes. Each Borrower has filed all tax returns and
              ----------------
reports required to be filed by it with the United States Government and/or with
all state and local governments, and has paid in full or made adequate provision
on its books for the payment of all taxes, interest, penalties, assessments or
deficiencies shown to be due or claimed to be due on or in respect of such tax
returns and reports, except to the extent that the validity or amount thereof is
being contested in good faith by appropriate proceedings and the non-payment
thereof pending such contest will not result in the execution of any tax lien or
otherwise jeopardize the Administrative Agent's or the Lenders' interests in any
part of the Collateral.

         5.5. Accuracy of Submitted Information; Omissions. As of the date
              --------------------------------------------
furnished, all documents, certificates, information, materials and financial
statements furnished or to be furnished to any Lender or the Administrative
Agent pursuant to this Agreement or otherwise in connection with the Loan (i)
are true and correct in all material respects; (ii) do not contain any untrue
statement of a material fact; and (iii) do not omit any material fact necessary
to make the statements contained therein or herein not misleading. No Borrower
is aware of any fact which has not been disclosed to the Administrative Agent in
writing which materially adversely affects, or so far as any Borrower can now
reasonably foresee, could reasonably be expected to materially adversely affect,
the properties, business, profit or condition (financial or otherwise) of any
Borrower or the ability of any Borrower to perform its obligations set forth in
this Agreement or in any other Loan Document.

                                       29



         5.6.  Government Contracts. No notice of suspension, debarment, cure
               --------------------
notice, show cause notice or notice of termination for default has been issued
by the Government to any Borrower, and no Borrower is a party to any pending, or
to any Borrower's knowledge threatened, suspension, debarment, termination for
default issued by the Government or other adverse Government action or
proceeding in connection with any Government Contract; it being understood and
agreed that, for purposes hereof, normal and customary reviews and audits
conducted by the Government in the ordinary course of business shall not be
deemed adverse Government action(s) or proceeding(s). All Government Contracts
which constitute Material Contracts and have a remaining term of six (6) months
or longer are listed on Schedule 5.6 hereto.
                        ------------

         5.7.  No Defaults or Liabilities. No Borrower is in default in any
               --------------------------
material respect in the performance of any obligation, covenant or condition
contained in any material agreement to which it is a party. Additionally, except
for the matters disclosed on Schedule 5.9 hereto, there is no litigation, legal
                             ------------
or administrative proceeding or investigation pending against any Borrower, and
no litigation, legal or administrative proceeding or investigation has been
threatened in writing against any Borrower, which has not been disclosed to the
Administrative Agent and/or the Lenders in writing and which involves amounts in
excess of the Dollar Equivalent Amount of Five Hundred Thousand and No/100
Dollars ($500,000.00) or which could reasonably be expected to prejudice the
Administrative Agent's or any Lender's rights under any Loan Document in any
material respect.

         5.8.  No Violations of Law. No Borrower is in violation of any
               --------------------
Applicable Laws in any material respect; no Borrower has failed to obtain any
license, permit, franchise or other governmental authorization necessary to the
ownership of its properties or to the conduct of its business, and each Borrower
has conducted its business and operations in compliance with all Applicable Laws
in all material respects.

         5.9.  Litigation and Proceedings. Except for the matters set forth on
               --------------------------
Schedule 5.9 attached hereto, no action, suit or proceeding against or affecting
- ------------
any Borrower is presently pending, or to the knowledge of any Borrower,
threatened, in any court, before any governmental agency or department, or
before any arbitration board or tribunal, which involves the possibility of any
judgment or liability in excess of the Dollar Equivalent Amount of Five Hundred
Thousand and No/100 Dollars ($500,000.00) and is not fully covered by insurance.
No Borrower is in default with respect to any order, writ, injunction or decree
of any court, governmental authority or arbitration board or tribunal.

         5.10. Security Interest in the Collateral. Each Borrower is the sole
               -----------------------------------
legal and beneficial owner of the Collateral owned or purported to be owned by
it, free and clear of all liens, claims and encumbrances of any nature, except
for the Permitted Liens and other liens expressly permitted by the terms and
provisions of this Agreement.

         5.11. Principal Place of Business; Location of Books and Records. Each
               ----------------------------------------------------------
Borrower maintains its principal place of business and the office where it keeps
its books and records with respect to accounts and contracts rights at the
locations listed on Schedule 2 hereto. Set forth on Schedule 5.11 hereto is a
                    ----------                      -------------
list of each Borrower's business locations as of the Closing Date, and all
places where any of the Collateral is located. The locations set forth on

                                       30



Schedule 5.11 hereto denoted with an asterisk reflect all locations where
- -------------
Borrower assets are valued in excess of the Dollar Equivalent Amount of One
Hundred Thousand and No/100 Dollars ($100,000.00). Each Borrower agrees to
notify the Administrative Agent in writing at least ten (10) days prior to any
change in its principal place of business, or any change in the location of the
office where it keeps its books and records with respect to accounts and
contract rights, or any change of or addition to the locations where any
Collateral is located.

     5.12. Fiscal Year. Each Borrower's fiscal year ends on December 31.
           -----------

     5.13. Pension Plans.
           -------------

           (a) The present value of all benefits vested under all "employee
pension benefit plans", as such term is defined in Section 3(2) of the Employee
Retirement Income Security Act of 1974 ("ERISA"), from time to time maintained
by the Borrowers (individually, a "Pension Plan" and collectively, the "Pension
Plans") did not, as of December 31, 2000, exceed the value of the assets of the
Pension Plans allocable to such vested benefits;

           (b) No Pension Plan, trust created thereunder or other person dealing
with any Pension Plan has engaged in a non-exempt transaction proscribed by
Section 406 of ERISA or a non-exempt "prohibited transaction", as such term is
defined in Section 4975 of the Internal Revenue Code;

           (c) No Pension Plan or trust created thereunder has been terminated
within the last three (3) years, and there have been no "reportable events" (as
such term is defined in Section 4043 of ERISA and the regulations thereunder)
with respect to any pension plan or trust created thereunder after June 30,
1974; and

           (d) No Pension Plan or trust created thereunder has incurred any
"accumulated funding deficiency" (as such term is defined in Section 302 of
ERISA or Section 412 of the Internal Revenue Code) as of the end of any plan
year, whether or not waived, since the effective date of ERISA.

     5.14.  O.S.H.A. and Environmental Compliance.
            -------------------------------------

           (a) Each Borrower has duly complied in all material respects with,
and its facilities, business assets, property, leaseholds and equipment are in
compliance in all material respects with, the provisions of the Federal
Occupational Safety and Health Act ("O.S.H.A."), the Environmental Protection
Act, RCRA and all other environmental laws which non-compliance with could
result in a material adverse effect on the business, condition (financial or
otherwise) or results of operations of any Borrower; and there have been no
citations, notices, notifications or orders of any such non-compliance issued to
any Borrower or relating to its business, assets, property, leaseholds or
equipment under any such laws, rules or regulations;

           (b) each Borrower has been issued all required federal, state and
local licenses, certificates and permits necessary or appropriate in the
operation of its facilities, businesses, assets, property, leaseholds and
equipment, unless the failure to obtain any such

                                       31



license, certificate or permit would not have a material adverse effect on the
business condition (financial or otherwise) or results of operations of any
Borrower; and

             (c) (i) there are no visible signs of releases, spills, discharges,
leaks or disposal (collectively referred to herein as "Releases") of Hazardous
Substances at, upon, under or within any Real Property owned, or to the actual
knowledge of any Borrower any premises leased, by any Borrower; (ii) there are
no underground storage tanks or polychlorinated biphenyls on any Real Property
owned, or to the actual knowledge of any Borrower any premises leased, by any
Borrower; (iii) no Real Property owned, or to the actual knowledge of any
Borrower premises leased, by any Borrower has ever been used by any Borrower
(and to the best of each Borrower's knowledge, any other person) as a treatment,
storage or disposal facility for Hazardous Waste; and (iv) no Hazardous
Substances are present on any Real Property owned, or to the actual knowledge of
any Borrower any premises leased, by any Borrower, except for such quantities of
Hazardous Substances as are handled in all material respects in accordance with
all applicable manufacturer's instructions and governmental regulations, and as
are necessary or appropriate for the operation of the business of the Borrowers.
Each Borrower, for itself and its successors and assigns, hereby covenants and
agrees to indemnify, defend and hold harmless the Agents and Lenders from and
against any and all liabilities, losses, claims, damages, suits, penalties,
costs and expenses of every kind or nature, including, without limitation,
reasonable attorneys' fees arising from or in connection with (i) the presence
or alleged presence of any Hazardous Substance or Hazardous Waste on, under or
about any property of any Borrower (including, without limitation, any property
or premises now or hereafter owned or leased by any Borrower), or which is
caused by or results from, directly or indirectly, any act or omission to act by
any Borrower; and (ii) any Borrower's violation of any environmental statute,
ordinance, order, rule or regulation of any governmental entity or agency
thereof (including, without limitation, any liability arising under CERCLA,
RCRA, HMTA or any Applicable Laws).


     5.15. Intellectual Property. All patents, patent applications, trademarks,
           ---------------------
trademark applications, copyrights, copyright applications, tradenames, trade
secrets and licenses necessary for the conduct of the business of each Borrower
are (i) owned or utilized by such Borrower, (ii) valid and, except with respect
to licenses, have been duly registered or filed with all appropriate
governmental authorities, and (iii) listed on Schedule 5.15 (a) hereto. Except
                                              -----------------
as disclosed in Schedule 5.15(a) hereto, there is no objection or pending
                ----------------
challenge to the validity of any such patent, trademark, copyright, tradename,
trade secret or license; no Borrower is aware of any grounds for any such
challenge or objection thereto; except as disclosed in Schedule 5.15(b) hereto,
                                                       ----------------
no Borrower pays any royalty to anyone in connection with any patent, trademark,
copyright, tradename, trade secret or license; and each Borrower has the right
to bring legal action for the infringement of any such patent, trademark,
copyright, tradename, trade secret or license.

     5.16. Existing or Pending Defaults; Material Contracts. All Material
           ------------------------------------------------
Contracts are listed on Schedule 5.16(a) hereto. Except as set forth on Schedule
                        ----------------                                --------
5.16(b) attached hereto, no Borrower is aware of any pending or threatened
- -------
litigation, or any other legal or administrative proceeding or investigation
pending or threatened, against any Borrower arising from or related to any
Material Contract which could reasonably be expected to have a material adverse
effect on the Administrative Agent's or any Lender's rights in connection with
such Material Contract.

                                       32



     5.17. Leases and Real Property. No Borrower owns any real property. All
           ------------------------
material leases and other agreements under which any Borrower occupies real
property are in full force and effect and constitute legal, valid and binding
obligations of, and are legally enforceable against, the Borrower party thereto
and, to the Borrowers' best knowledge, are the binding obligations of and
legally enforceable against, the other parties thereto. All necessary
governmental approvals, if any, have been obtained for each such material lease
or agreement, and there have been no threatened cancellations thereof or
outstanding material disputes with respect thereto. The landlord for the
premises in which the Parent Company's headquarters is located has subordinated
(or expressly assumed terms, covenants and conditions of subordination) for the
benefit of the Administrative Agent, on terms and conditions reasonably
satisfactory to the Administrative Agent, any landlord's or lessor's lien which
may now or hereafter exist (whether by statute, contract or otherwise) on any of
the Collateral located at such premises.

     5.18. Labor Relations. There are no strikes, work stoppages, material
           ---------------
grievance proceedings, union organization efforts or other controversies
pending, or to any Borrower's knowledge, threatened or reasonably anticipated,
between any Borrower and (i) any current or former employee of any Borrower or
(ii) any union or other collective bargaining unit representing any such
employee. Each Borrower has complied and is in compliance in all material
respects with all Applicable Laws relating to employment or the workplace,
including, without limitation, provisions relating to wages, hours, collective
bargaining, safety and health, work authorization, equal employment opportunity,
immigration, withholding, unemployment compensation, employee privacy and right
to know. Except as set forth on Schedule 5.18 hereto, there are no collective
                                -------------
bargaining agreements, employment agreements between any Borrower and any of its
employees, or professional service agreements not terminable at will relating to
the businesses or assets of any Borrower. The consummation of the transactions
contemplated hereby will not cause any Borrower to incur or suffer any liability
relating to, or obligation to pay, severance, termination or other similar
payments to any person or entity.


     5.19. Assignment of Government Contracts. No existing Government Contract
           ----------------------------------
of any Borrower (and no present or future interest of any Borrower, in whole or
in part, in, to or under any such Government Contract) is currently assigned,
pledged, hypothecated or otherwise transferred to any person or entity (other
than in favor of the Administrative Agent for the benefit of the Lenders
ratably).

     5.20. Contribution Agreement. The Contribution Agreement is in full force
           ----------------------
and effect, has not been modified, altered or amended in any respect whatsoever
(other than to add a new Borrower party thereto from time to time), and no
Borrower is in default thereunder.

     5.21. Intentionally Deleted.
           ---------------------

     5.22. Ownership of the Borrowers. As of the date of this Agreement (i) all
           --------------------------
of the issued and outstanding capital stock of the Parent Company is owned in
the percentages and by the persons referenced on Schedule 5.22(a) hereto; and
                                                 ----------------
(ii) all of the issued and outstanding capital stock of each other Borrower is
owned by either the Parent Company or another Borrower, except as described on
Schedule 5.22(b) hereto.
- ----------------

                                       33


     5.23. Solvency. Both prior to and after giving effect to the transactions
           --------
contemplated by the terms and provisions of this Agreement, (i) each Borrower
(other than those Borrowers listed on Schedule 5.23 hereto) owned and owns
                                      -------------
property (including, without limitation, the Borrower's rights under the
Contribution Agreement) whose fair saleable value is greater than the amount
required to pay all of such Borrower's Indebtedness (including contingent
debts), (ii) each Borrower was and is able to pay all of its Indebtedness as
such Indebtedness matures, and (iii) each Borrower had and has capital
sufficient to carry on its business and transactions and all business and
transactions in which it is about to engage. For purpose hereof, "Indebtedness"
means, without duplication (a) all items which in accordance with GAAP would be
included in determining total liabilities as shown on the liability side of a
balance sheet of such Borrower as of the date on which Indebtedness is to be
determined, (b) all obligations of any other person or entity which such
Borrower has guaranteed, (c) reimbursement obligations in connection with
letters of credit issued for the benefit of such Borrower, and (d) the
Obligations.

     5.24. Survival of Representations and Warranties. All representations and
           ------------------------------------------
warranties made herein shall survive the making of the Loan, and shall be deemed
remade and redated as of the date of each request for an advance or readvance of
any Loan proceeds, unless the Borrower is unable to remake and/or redate any
such representation or warranty, discloses the same to the Lenders in writing,
and such inability does not constitute or give rise to an Event of Default.

                                    ARTICLE 6
                     AFFIRMATIVE COVENANTS OF THE BORROWERS

     So long as any Obligation remains outstanding or this Agreement remains in
effect, each Borrower jointly and severally covenants and agrees with the
Lenders that:

     6.1. Payment of Loan Obligations. Each Borrower will duly and punctually
          ---------------------------
pay all sums to be paid to the Lenders and the Agents in accordance with the
terms and conditions of the Loan Documents, and will comply with, perform and
observe all of the terms thereof.

     6.2. Payment of Taxes. Each Borrower will promptly pay and discharge when
          ----------------
due all federal, state and other governmental taxes, assessments, fees and
charges imposed upon it, or upon any of its properties or assets, except to the
extent that the non-payment thereof will not result in the execution of any tax
lien or otherwise jeopardize the Administrative Agent's or the Lenders' interest
in any part of the Collateral.

     6.3. Delivery of Financial and Other Statements. The Borrowers shall
          ------------------------------------------
deliver to the Administrative Agent and the Lenders financial and other
statements, each of which shall, unless otherwise expressly provided to the
contrary, be prepared in accordance with GAAP consistently applied, as follows:

          (a) on or before the one hundred twentieth (120th) day following the
close of each fiscal year, the Borrowers will submit to the Administrative Agent
and the Lenders (i) annual audited and unqualified consolidated financial
statements, which shall be accompanied by consolidating schedules and management
letters (if issued) and certified by a nationally

                                       34



recognized independent certified public accountant, and (ii) an annual budget
for the then current year, in form reasonably satisfactory to the Administrative
Agent, certified by the Borrowers' Chief Financial Officer or another duly
authorized executive officer of the Borrowers;

          (b) on or before the forty-fifth (45th) day following the close of
each calendar quarter, the Borrowers will submit to the Administrative Agent and
the Lenders (i) a consolidated and consolidating balance sheet, income statement
and statement of stockholders' equity, reporting the Borrowers' current
financial position and the results of their operations for the quarter then
ended and year-to-date, (ii) internally prepared statements of cash flow and
contract/status backlog reports, (iii) a Quarterly Covenant
Compliance/Non-Default Certificate in the form of Exhibit 5 hereto, and (iv) a
                                                  ---------
statement detailing (A) the Borrowers' availability under the "basket
limitations" set forth in Section 7.8 of this Agreement, and (B) the Dollar
Equivalent Amount of outstanding and unpaid Loan proceeds to ARL and Vobix, each
of which shall be in form reasonably satisfactory to the Administrative Agent
and certified by the Borrowers' Chief Financial Officer or another duly
authorized executive officer of the Borrowers;

          (c) on or before the twenty-fifth (25th) day following the close of
each calendar month, the Borrowers will submit to the Administrative Agent and
the Lenders a Borrowing Base/Non-Default Certificate in the form of Exhibit 4
                                                                    ---------
hereto, accompanied by detailed current aged billed and unbilled accounts
receivable reports, each of which shall be certified by an authorized executive
officer of the Borrowers;

          (d) within five (5) days of issuance, distribution or filing, as
applicable, the Borrowers will submit to the Administrative Agent and the
Lenders copies of all public filings, disclosure statements and/or registration
statements which any Borrower issues to, distributes to or files with the
Securities and Exchange Commission or any state agency or department regulating
securities (or any other person or entity, pursuant to the rules and/or
regulations of the Securities and Exchange Commission or any state agency or
department regulating securities); and

          (e) promptly upon the request of the Administrative Agent or any
Lender, the Borrowers will provide to the Administrative Agent and the Lenders
such other information and/or reports relating to each Borrower's business,
operations, properties or prospects as the Administrative Agent or Lenders may
from time to time reasonably request.

     6.4. Maintenance of Records; Review by the Lenders. Each Borrower will
          ---------------------------------------------
maintain at all times proper books of record and account in accordance with
GAAP, consistently applied, and, subject to any confidentiality and secrecy
requirements imposed by any Government agency, will permit the Lenders' officers
or any of the Lenders' authorized representatives or accountants to visit and
inspect each Borrower's offices and properties, examine its books of account and
other records, and discuss its affairs, finances and accounts with the officers
of the Parent Company, all at such reasonable times during normal business
hours, and as often as the Lenders may desire.

     6.5. Maintenance of Insurance Coverage. Each Borrower will maintain in
          ---------------------------------
effect fire and extended coverage insurance, public liability insurance,
worker's compensation insurance and insurance on the Collateral and each of its
properties, with responsible insurance

                                       35



companies, in such amounts and against such risks as are customary for similar
businesses, required by governmental authorities, if any, having jurisdiction
over all or part of its operations, or otherwise reasonably required by the
Administrative Agent, and will furnish to the Administrative Agent certificates
evidencing such continuing insurance. The Administrative Agent, for the benefit
of the Lenders, shall be named as loss payee on all hazard and casualty
insurance policies by means of a standard noncontributory mortgagee clause and
as an additional insured on all liability insurance policies. All insurance
policies shall also provide for (i) not less than thirty (30) days written
notice to the Administrative Agent prior to expiration, cancellation or material
change; and (ii) waiver of subrogation. The Lenders acknowledge that the
insurance maintained by the Borrowers as of the date of this Agreement, as
evidenced by the certificates of insurance delivered to the Lenders for the
period from March 3, 2001 (May 1, 2001 with respect to property coverage)
through March 3, 2002 (May 1, 2002 with respect to property coverage), satisfies
the requirements of this Section 6.5 as of the date of this Agreement.


     6.6. Maintenance of Property/Collateral; Performance of Contracts. Each
          ------------------------------------------------------------
Borrower will at all times maintain the Collateral and its tangible property,
both real and personal, in good order and repair (subject to ordinary wear and
tear), and will permit the Administrative Agent's officers or authorized
representatives to visit and inspect the Collateral and each Borrower's tangible
property at such reasonable times during normal business hours, as and when the
Administrative Agent deems necessary or appropriate; provided, however, that the
Administrative Agent's review of any and all "classified contracts" shall be
subject to compliance with Applicable Laws. Each Borrower shall perform all
obligations under all material contracts to which it is a party (including,
without limitation, all obligations as contractor under any Material Contract),
including all exhibits and other attachments to such contracts, all
modifications thereto and all documents and instruments delivered pursuant
thereto, and will comply in all material respects with all laws, rules and
regulations governing the execution, delivery and performance thereof.

     6.7. Maintenance of Corporate Existence. Each Borrower will maintain its
          ----------------------------------
corporate existence and will provide the Administrative Agent with evidence of
the same from time to time upon the Administrative Agent's request.

     6.8. Maintenance of Certain Accounts with the Administrative Agent. Each
          -------------------------------------------------------------
Borrower will maintain its primary operating accounts, including all primary
depository accounts (time and demand), disbursement accounts and collection
accounts with the Administrative Agent.

     6.9. Maintenance of Management. The Borrowers will notify the
          -------------------------
Administrative Agent and the Lenders in writing of the change of any corporate
officer or director of the Parent Company, within ten (10) days of the date of
any such change.

     6.10. Disclosure of Defaults, Etc.
           ---------------------------

           (a) Promptly upon the occurrence thereof, each Borrower will provide
the Administrative Agent and the Lenders with written notice of any Event of
Default, or any act, event or occurrence that upon the giving of any required
notice or the lapse of time, or both, would constitute an Event of Default. In
addition, each Borrower will promptly advise the

                                       36



Administrative Agent and the Lenders in writing of any condition, act, event or
occurrence which comes to such Borrower's attention that would or could
reasonably be expected to prejudice the Administrative Agent's or any Lender's
rights in connection with any Material Contract, the Collateral, this Agreement,
any Note or any other Loan Document, including, without limitation, the details
of any pending or threatened suspension, debarment or other governmental action
or proceeding, any material pending or threatened litigation, and any other
legal or administrative proceeding or investigation pending or threatened
against any Borrower, including the entry of any judgment in excess of the
Dollar Equivalent Amount of Five Hundred Thousand and No/100 Dollars
($500,000.00) or lien (other than a Permitted Lien) against any Borrower, its
assets or property.

           (b) If, at any time after the Closing Date, any Borrower shall
receive any letter, notice, subpoena, court order, pleading or other document
issued, given or delivered by the Government or by any person or entity acting
for or on behalf of the Government with respect to, or in any manner related to,
Items 1 or 3 set forth in Schedule 5.9 hereto, such Borrower shall deliver a
                          ------------
true, correct and complete copy of such letter, notice, subpoena, court order,
pleading or document to the Administrative Agent, the Administrative Agent's
counsel and each Lender within one (1) Business Day of such Borrower's receipt
thereof. Furthermore, if any Borrower shall issue, give or deliver to the
Government or any person or entity acting for or on behalf of the Government any
letter, notice, subpoena, court order, pleading or other document with respect
to, or in any manner related to, Items 1 or 3 set forth in Schedule 5.9 hereto,
                                                           ------------
such Borrower shall deliver a true, correct and complete copy of such letter,
notice, subpoena, court order, pleading or other document to the Administrative
Agent, the Administrative Agent's counsel and each Lender concurrent with the
Borrower's issuance or delivery thereof to the Government. If any letter,
notice, subpoena, court order, pleading or other document required to be
delivered to the Administrative Agent, the Administrative Agent's counsel and
each Lender pursuant to this Section 6.10 contains any information deemed
"classified" by the Government and/or the dissemination of any such information
to the Administrative Agent, the Administrative Agent's counsel and each Lender
would result in the Borrowers violating any Applicable Law, then the Borrowers
shall deliver to the Administrative Agent, the Administrative Agent's counsel
and each Lender a summary of such letter, notice, subpoena, court order,
pleading or other document containing a summary thereof, but including as much
(but no more than) detail as can be included therein without violating any
Applicable Law.

     6.11. Security Perfection; Assignment of Claims Act; Payment of Costs. The
           ---------------------------------------------------------------
Borrowers will execute and deliver and pay the costs of recording and filing
financing statements, continuation statements, termination statements,
assignments and other documents, as the Administrative Agent may from time to
time deem necessary or appropriate for the perfection of any liens granted to
the Administrative Agent or Lenders pursuant hereto or pursuant to any other
Loan Document. On or before the date which is ninety (90) days from the date of
any Government Contract hereafter entered into by one or more Borrowers, such
Borrower(s) shall execute all documents necessary or appropriate in order to
comply with the Assignment of Claims Act of 1940, as amended, 31 U.S.C. Section
3727 and 41 U.S.C. Section 15 (the "Government Contract Assignments") in
connection with each such Government Contract; it being understood and agreed,
however, that no Government Contract Assignment is being required for any
Government Contract (a) which has a remaining value of less than Five Million
and No/100 Dollars ($5,000,000.00), (b) which has a term of less than six (6)
months, or

                                       37



(c) pursuant to which a Borrower is not a/the prime contractor thereof. All
Government Contract Assignments shall be held in escrow pursuant to the Escrow
Agreement attached as Exhibit 8 hereto, as the same may be amended from time to
time. All costs and expenses incurred in connection with the escrow of the
Government Contract Assignments shall be borne solely by the Borrowers.
Additionally, the Borrowers will pay any and all costs incurred in connection
with the transactions contemplated hereby, as well as any and all taxes (other
than the Lenders' income and franchise taxes), which may be payable as a result
of the execution of this Agreement or any agreement supplemental hereto, or as a
result of the execution and/or delivery of any Note or other Loan Document.

        6.12. Defense of Title to Collateral. The Borrowers will at all times
              ------------------------------
defend the Lenders', the Administrative Agent's and Borrowers' rights in the
Collateral, subject to the Permitted Liens, against all persons and all claims
and demands whatsoever, and will, upon request of the Administrative Agent (i)
furnish such further assurances of title as may be required by the
Administrative Agent, and (ii) do any other acts necessary to effectuate the
purposes and provisions of this Agreement, or as required by law or otherwise in
order to perfect, preserve, maintain or continue the interests of the
Administrative Agent and Lenders in the Collateral.


        6.13. Compliance with Law. Each Borrower will conduct its businesses and
              -------------------
operations in compliance in all material respects with (i) all Applicable Laws
and requirements of all federal, state and local regulatory authorities having
jurisdiction, (ii) the provisions of its charter documents and by-laws, (iii)
all agreements and instruments by which it or any of its properties may be
bound, and (iv) all applicable decrees, orders and judgments.

        6.14. Other Collateral Covenants.
              --------------------------

              (a) The Borrowers will, at their own expense, make, execute,
endorse, acknowledge, file and/or deliver to the Administrative Agent from time
to time such lists, descriptions and designations of Collateral, warehouse
receipts, receipts in the nature of warehouse receipts, bills of lading,
documents of title, vouchers, invoices, schedules, confirmatory assignments,
conveyances, financing statements, transfer endorsements, powers of attorney,
certificates, reports and other assurances or instruments, and take such further
steps relating to the Collateral and other property or rights covered by the
interests hereby granted which the Administrative Agent deems reasonably
appropriate or advisable to perfect, preserve or protect its ownership and
security interests in the Collateral.

              (b) Unless waived in writing by the Administrative Agent, the
Borrowers shall obtain authenticated control letters from each issuer of
uncertificated securities, securities intermediary or commodities intermediary
issuing or holding any financial assets or commodities to or for any of the
Borrowers.

              (c) Following the occurrence of an Event of Default, if any
Borrower is or becomes the beneficiary of a letter of credit, such Borrower
shall promptly, and in any event within two (2) Business Days after becoming a
beneficiary, notify the Administrative Agent thereof and, following the
Administrative Agent's request, enter into a tri-party agreement with the
Administrative Agent and the issuer and/or confirmation bank with respect to all
Letter of Credit Rights in connection with such letter of credit, assigning such
Letter of Credit Rights to

                                       38



the Administrative Agent and directing all payments thereunder to an account
designated by the Administrative Agent, which tri-party agreement shall be in
form and substance reasonably satisfactory to the Administrative Agent.

         (d) The Borrowers shall take all steps necessary to grant the
Administrative Agent control of all electronic chattel paper in accordance with
the UCC and all "transferable records" as defined in each of the Uniform
Electronic Transactions Act and the Electronic Signatures in Global and National
Commerce Act.

         (e) The Borrowers hereby irrevocably authorize the Administrative Agent
at any time and from time to time to file in any filing office in any Uniform
Commercial Code jurisdiction any initial financing statements and amendments
thereto that (A) describe Collateral (I) as all assets of the Borrowers or words
of similar effect (other than assets expressly excluded from the description of
Collateral herein), regardless of whether any particular asset comprised in the
Collateral falls within the scope of Article 9 of the Uniform Commercial Code in
such jurisdiction, or (II) as being of an equal or lesser scope or with greater
detail, and (B) contain any other information required by part 5 of Article 9 of
the Uniform Commercial Code for the sufficiency or filing office acceptance of
any financing statement or amendment, including (I) whether any Borrower is an
organization, the type of organization and any organization identification
number issued to such Borrower, and (II) in the case of a financing statement
filed as a fixture filing or indicating Collateral as as-extracted collateral or
timber to be cut, a sufficient description of real property to which the
Collateral relates. The Borrowers agree to furnish any such information to the
Administrative Agent promptly upon request. The Borrowers also ratify their
authorization for the Administrative Agent to have filed in any Uniform
Commercial Code jurisdiction any initial financing statements or amendments
thereto if filed prior to the date hereof.

         (f) The Borrowers shall promptly, and in any event within two (2)
Business Days after the same is acquired by any Borrower, notify the
Administrative Agent of any Commercial Tort Claim (as defined in the UCC)
acquired by a Borrower and unless otherwise consented to by the Administrative
Agent, such Borrower shall enter into a supplement to this Agreement, granting
to the Administrative Agent a security interest in such Commercial Tort Claim.

         (g) If any Borrower retains possession of any Chattel Paper or
Instruments with the Administrative Agent's consent, such Chattel Paper and
Instruments shall be marked with the following legend: "This writing and the
obligations evidenced or secured hereby are subject to the security interest of
Citizens Bank, as Administrative Agent."

         (h) Without limiting the prohibitions on mergers involving the
Borrowers contained in this Agreement, no Borrower shall reincorporate or
reorganize itself under the laws of any jurisdiction other than the jurisdiction
in which it is incorporated as of the date hereof without the prior written
consent of the Administrative Agent.

         (i) Each Borrower acknowledges that it is not authorized to file any
financing statement or amendment or termination statement with respect to any
financing statement without the prior written consent of the Administrative
Agent and agrees that it will not do so

                                       39



without the prior written consent of the Administrative Agent, subject to such
Borrower's rights under Section 9-509(d)(2) of the UCC.

         6.15. Financial Covenants of the Borrowers. So long as any Obligation
               ------------------------------------
remains outstanding or this Agreement remains in effect, the Borrowers will
comply with each of the financial covenants set forth below.

               (a) Net Worth. The Borrowers will at all times maintain on a
                   ---------
consolidated basis Net Worth of not less than the sum of ninety-five percent
(95%) of the Borrowers' Net Worth, determined as of September 30, 2001, plus
seventy-five percent (75%) of net income arising after September 30, 2001 (not
to be reduced for consolidated losses), plus ninety percent (90%) of equity
issuances. For purposes of this Agreement, "Net Worth" shall mean shareholders'
equity (other than minority shareholder interests), as determined in accordance
with GAAP.

               (b) Fixed Charge Coverage Ratio. The Borrowers will maintain on a
                   ---------------------------
consolidated basis for each quarter, a Fixed Charge Coverage Ratio of not less
than 1.25 to 1.00. For purposes of the foregoing, "Fixed Charge Coverage Ratio"
shall mean the Borrowers ` EBITDA, plus real property rent expense, minus cash
                                   ----                             -----
taxes paid, minus capital expenditures (excluding capitalized software), divided
            -----                                                        -------
by the Borrower's real property rent expense, plus interest expense, plus
- --                                            ----                   ----
required principal payments on debt and capital leases. The Fixed Charge
Coverage Ratio shall be measured on the last day of each fiscal quarter
throughout the term of the Loan.

               (c) Total Debt to EBITDA Ratio. The Borrowers will maintain on a
                   --------------------------
consolidated basis for each quarter ending during the periods specified below, a
Total Debt to EBITDA ratio of not more than the following:

                                                         Required Total Debt
                                                         ------------------
                              Period                      to EBITDA Ratio
                              ------                      ---------------

                   From the date of this Agreement
                   through December 31, 2001                 3.25 to 1.0

                   From January 1, 2002 through
                   December 31, 2002                         3.00 to 1.0

                   From January 1, 2003 through the
                   Maturity Date                             2.75 to 1.0


     For purposes of the foregoing, "Total Debt" shall have the meaning
     attributed to such term in the "Certain Definitions" section of this
     Agreement. The Total Debt to EBITDA ratio shall be measured on the last day
     of each fiscal quarter throughout the term of the Loan.

               (d) EBITDA to Interest Expense Ratio. The Borrowers will maintain
                   --------------------------------
on a consolidated basis for each quarter, an EBITDA to Interest Expense ratio of
not less than 2.50 to

                                       40



1.00. The Ratio of EBITDA to Interest Expense shall be measured on the last day
of each fiscal quarter throughout the term of the Loan.

           (e) Capital Expenditures. The Borrowers shall not, on a consolidated
               --------------------
basis, make or incur any capital expenditures in excess of the Dollar Equivalent
Amount of Seven Million Five Hundred Thousand and No/100 Dollars
($7,500,000.00), in the aggregate, during any twelve (12) month period. For
purposes hereof, capital expenditures shall include, but not be limited to,
leasehold improvements and capitalized software, but shall exclude payments due
in connection with the Enterprise Resource Planning Operating Lease.

     The financial covenants referenced above shall be calculated and tested on
the basis of twelve (12) month trailing results, and shall include the twelve
(12) month trailing results of any entity acquired with the consent of the
Administrative Agent and consolidated into the Borrowers' financial statements
within the twelve (12) month period immediately preceding the applicable
covenant calculation date; provided that the financial covenant calculations
referenced above shall not include nor take into account any of the operating
results of Praxa. Unless otherwise defined, all financial terms used in this
Section 6.15 shall have the meanings attributed to such terms in accordance with
GAAP.

     6.16. Intentionally Omitted.
           ---------------------

     6.17. Landlord Waivers; Subordination. The Borrowers shall provide landlord
           -------------------------------
waivers to the Administrative Agent with respect to any location at which any
Borrower now or hereafter stores, keeps or locates its books and records. The
Borrowers shall exercise reasonable efforts to provide landlord waivers to the
Administrative Agent prior to any Borrower storing, keeping or locating any
other assets and/or inventory of such Borrower on the lessor's/landlord's
premises with respect to any location at which any Borrower hereafter stores,
keeps or locates such other assets and/or inventory having a value in excess of
the Dollar Equivalent Amount of Five Hundred Thousand and No/100 Dollars
($500,000.00), in the aggregate. These landlord waivers shall subordinate any
statutory, contractual or other lien the lessor/landlord may have in any of the
Collateral to the lien, operation and effect of the lien being granted to the
Administrative Agent pursuant to this Agreement, and shall be in form and
substance reasonably acceptable to the Administrative Agent.

     6.18. Substitute Notes. Upon request of the Administrative Agent, each
           ----------------
Borrower shall execute and deliver to the Administrative Agent substitute
promissory notes, in form and substance satisfactory to the Administrative Agent
in all respects, payable to the order of such person or entity as may be
designated by the Administrative Agent; it being understood and agreed, however,
that the aggregate principal amount of all outstanding promissory notes shall
not exceed the Commitment Amount (plus the Swing Line Commitment Amount) as of
the date such substitute note(s) are issued.

     6.19. Interest Rate Contracts. The Borrowers may have in effect, from time
           -----------------------
to time, interest rate protection agreements ("Interest Rate Contracts")
reasonably satisfactory to the Administrative Agent. Any such Interest Rate
Contract must be purchased from a Lender, an affiliate of a Lender or any
financial institution reasonably acceptable to the Administrative Agent. The
Borrowers' obligations under any Interest Rate Contract purchased from a Lender
or

                                       41



an affiliate of a Lender shall be secured by the Collateral on a pari passu
basis. All other Interest Rate Contracts shall be unsecured in all respects. The
Borrowers shall determine to their own satisfaction whether each such Interest
Rate Contract is sufficient to meet the Borrowers' needs for interest rate
protection, and neither the Agents nor any Lender shall have any obligation or
liability with respect thereto, nor any obligation to propose, quote or enter
into any Interest Rate Contract, unless such Interest Rate Contract shall be on
terms and conditions satisfactory to the applicable Lender in all respects.

                                   ARTICLE 7
                       NEGATIVE COVENANTS OF THE BORROWERS

         So long as any Obligation remains outstanding or this Agreement remains
in effect, each Borrower jointly and severally covenants and agrees that,
without the prior written consent of the Administrative Agent, the Borrowers
will not:

         7.1. Change of Control; Disposition of Assets; Merger.
              ------------------------------------------------

              (a) Permit majority or effective control of any Borrower to be
sold, assigned or otherwise transferred, legally or equitably, to any person or
entity, except to another Borrower or a Pedersen Entity; provided that such
entity, upon its acquisition of majority or effective control of any such
Borrower, becomes a "Borrower" hereunder (if not already a Borrower in which the
Administrative Agent has a perfected security interest in and to all of its
assets constituting Collateral) and pledges all of its assets (of the kind and
nature pledged by each Borrower pursuant to the terms and provisions of the Loan
Documents) to the Administrative Agent on behalf of the Lenders, pursuant to
such documentation as the Lenders deem necessary and appropriate; or

              (b) suffer or permit the issuance of any capital stock of the
Borrowers, except for the issuance of Additional Equity Stock, whether pursuant
to an employee stock option plan or an employee stock ownership plan, in form
and substance reasonably satisfactory to the Administrative Agent (either such
plan being referred to herein as an "Approved ESOP"), an employee stock purchase
plan, in form and substance reasonably satisfactory to the Administrative Agent
(an "Approved ESPP"), a public offering or otherwise; provided that, after
giving effect to such issuance, (i) Pedersen shall own and hold stock
representing at least fifty-one percent (51%) of the voting rights (and both
majority and effective control) of the Parent Company; (ii) stock representing
at least fifty-one percent (51%) of the voting rights (and both majority and
effective control) of any other Borrower in which Additional Equity Stock is
issued shall be owned by the Borrower(s); and (iii) not more than Five Million
and No/100 Dollars ($5,000,000.00) in the aggregate of the Additional Equity
Stock is redeemable; or

              (c) permit any Borrower to sell, assign, loan, deliver, lease,
transfer or otherwise dispose of property or assets (including, without
limitation, stock of another Borrower), except for (i) transfers of assets
between Borrowers in which the Administrative Agent has a perfected security
interest in and to all of their assets constituting Collateral; (ii) the
disposition of a Borrower's assets to a Pedersen Entity, provided that such
entity, upon its acquisition of such assets, becomes a "Borrower" under this
Agreement and the other Loan Documents and pledges all of its assets (of the
kind and nature pledged by the Borrowers

                                       42



pursuant to the terms and provisions of the Loan Documents) to the
Administrative Agent on behalf of the Lenders pursuant to such documentation as
the Lenders deem necessary and appropriate; (iii) dispositions of the assets of
the Borrowers listed on Schedule 9.1 hereto; and (iv) the disposition of other
                        ------------
assets in the ordinary course of the Borrowers' business, provided that such
dispositions of other assets, in the aggregate, do not exceed the Dollar
Equivalent Amount of Five Hundred Thousand and No/100 Dollars ($500,000.00)
during any twelve (12) month period; or permit any Borrower to become a party to
any document, instrument or agreement (other than this Agreement) which
prohibits such Borrower from assigning, pledging, hypothecating or otherwise
encumbering any stock of another Borrower; or

         (d) permit any Borrower or any subsidiary or affiliate of any Borrower
to merge or consolidate with any company or enterprise, or acquire or purchase
any company or enterprise or acquire or purchase substantially all of the assets
of any company or enterprise; it being understood and agreed that mergers
between Borrowers shall not require the consent of the Administrative Agent so
long as (i) after giving effect to such merger, the Administrative Agent has a
perfected security interest in and to the all of the assets of the surviving
Borrower constituting Collateral, and (ii) the Borrowers shall have provided not
less than twenty (20) days prior written notice to the Administrative Agent and
Lenders of any merger or consolidation between Borrowers, except that written
notice of the proposed merger between the Parent Company and ManTech
International Corporation, a Delaware corporation, may be given within five (5)
days after such merger. In the event that the Administrative Agent issues its
consent to a hostile acquisition or an acquisition involving the stock or assets
of existing customers of any Lender, such consent shall be subject to the
Borrowers' agreement to indemnify, defend and hold the Lenders harmless from and
against any and all claims, demands, losses, liabilities, damages, costs and
expenses of every kind and nature, including without limitation, reasonable
attorneys' fees, related to, arising out of or in connection with such
acquisition, pursuant to an indemnity agreement satisfactory to the Lenders in
all respects. Furthermore, the Borrowers acknowledge and agree that the assets
of the company to be acquired or merged will not be included in the calculation
of the Maximum Borrowing Base without the Administrative Agent's prior approval.

     7.2. Margin Stocks. Use all or any part of the proceeds of any advance made
          -------------
hereunder to purchase or carry, or to reduce or retire any loan incurred to
purchase or carry, any margin stocks (within the meaning of Regulation U of the
Board of Governors of the Federal Reserve System) or to extend credit to others
for the purpose of purchasing or carrying any such margin stocks.

     7.3. Change of Operations. Change the general character of any Borrower's
          --------------------
business as conducted on the Closing Date, or engage in any type of business not
directly related to or compatible with such business as presently and normally
conducted.

     7.4. Judgments; Attachments. Suffer or permit any judgment in excess of the
          ----------------------
Dollar Equivalent Amount of Five Hundred Thousand and No/100 Dollars
($500,000.00) against any Borrower or any attachment against any Borrower's
property (for an amount not fully covered by insurance) to remain unpaid,
undischarged or undismissed for a period of ten (10) days, unless enforcement
thereof shall be effectively stayed or bonded.

                                       43



     7.5. Further Assignments; Performance and Modification of Contracts; etc.
          --------------------------------------------------------------------
Except as may be expressly permitted by the Loan Documents (i) make any further
assignment, pledge or disposition of the Collateral or any part thereof; (ii)
permit any set-off or reduction, delay the timing of any payment under, or
otherwise modify any Material Contract, if such set-off, reduction, delay or
modification would give rise to a Borrowing Base Deficiency or otherwise
adversely affect any Borrower in any material respect; (iii) create, incur or
permit to exist any lien or encumbrance on any real property now or hereafter
owned by any Borrower; or (iv) do or permit to be done anything to impair the
Administrative Agent's security interest in any Collateral or the payments due
to any Borrower thereunder; it being understood that reasonable and customary
compromises and settlements with Account Debtors in the ordinary course of the
Borrower's business will not constitute a violation of this covenant.

     7.6. Affect Rights of the Administrative Agent or Lenders. At any time do
          ----------------------------------------------------
or perform any act or permit any act to be performed which would or reasonably
could materially adversely affect the interests or rights of the Administrative
Agent or Lenders under any Loan Document.

     7.7. Indebtedness; Granting of Security Interests.
          --------------------------------------------

          (a) Suffer or permit any Borrower to incur any indebtedness, whether
direct or indirect, except for:

               (i)   trade debt and operating leases incurred in the ordinary
course of business;

               (ii)  indebtedness outstanding on the date hereof and listed on
Schedule 7.7(a) hereto;
- ---------------

               (iii) inter-company indebtedness (including inter-company
guarantees) by and among the Borrowers in which the Administrative Agent has a
perfected security interest in and to all of their assets constituting
Collateral;

               (iv)  performance bonds issued on behalf of the Borrowers in the
ordinary course of business, and performance guarantees issued by any Borrower
for the benefit of another Borrower;

               (v)   indebtedness secured by liens listed on Schedule 7.7(c)
                                                             --------------
hereto, or other indebtedness secured by Permitted Liens;

               (vi)  debt incurred to finance the redemption of not more than
One Million Five Hundred Thousand Dollars ($1,500,000) of the Borrowers
Redeemable Common B Stock, on terms and conditions acceptable to the Lenders in
all respects;

               (vii) subject to the terms and provisions set forth in the letter
agreement dated January 7, 1998 attached as Exhibit 11 hereto, subordinated debt
                                            ----------
(the "First Source Debt") owing to First Source Financial LLP in a principal
amount not to exceed Eight Million and No/100 Dollars ($8,000,000.00); it being
expressly understood and agreed that (a)

                                       44



the terms of such letter agreement shall be applicable to the Facilities being
made available to the Borrowers pursuant to this Agreement and be for the
benefit of the Lenders in connection with the Facilities (although such letter
agreement was originally executed in connection with, and for the benefit of, a
previous senior credit facility), and (b) in the event of any inconsistency
between the letter agreement and this Agreement, the terms and provisions set
forth in this Agreement shall control;

                (viii) other subordinated debt expressly subordinated to the
Loan on terms and conditions acceptable to the Lenders, provided that, upon
request of the Administrative Agent, the subordinate lender executes a
subordination agreement satisfactory to the Administrative Agent in all
respects;

                (ix)   unfunded retirement plan liabilities of the senior
employee retirement plans of the Parent Company and NSI;

                (x)    indebtedness incurred pursuant to interest rate
contracts entered into by the Borrowers in accordance with Section 6.19 of this
 Agreement;

                (xi)   indebtedness incurred by ARL in the United Kingdom,
provided that such indebtedness is unsecured, used solely for working capital
purposes and does not, at any time, exceed the Dollar Equivalent Amount of One
Million and No/100 Dollars ($1,000,000.00);

                (xii)  indebtedness incurred to finance (by purchase or lease)
equipment constituting capital expenditures, provided that such indebtedness
does not violate any other covenant set forth in this Agreement; and

                (xiii) other guarantees expressly permitted by the terms of this
Agreement.

          (b) mortgage, assign, pledge, hypothecate or otherwise encumber or
permit any lien, security interest or other encumbrance, including purchase
money liens, whether under conditional or installment sales arrangements or
otherwise, to affect the Collateral or any other assets or properties of any
Borrower (except for Permitted Liens and other liens, security interests or
encumbrances expressly permitted herein); or

          (c) enter into any agreement or understanding with any person or
entity pursuant to which any Borrower agrees to be bound by a covenant not to
encumber all or any part of the property or assets of such Borrower, unless such
agreement or understanding is entered into in connection with the granting of
purchase money security interests permitted pursuant to the terms and provisions
of this Agreement.

     Each Borrower hereby agrees that, upon request of the Administrative Agent,
the Borrower shall provide to the Administrative Agent such documents,
instruments and/or agreements evidencing, arising from or related to any and all
performance guarantees executed by any Borrower.

                                       45



     7.8.   Dividends; Loans; Advances; Investments and Similar Events.
            ----------------------------------------------------------

            (a) Declare or pay any dividend on any Borrower's capital stock of
any class, alter or amend any Borrower's capital structure, purchase, redeem or
otherwise retire any shares of any Borrower's capital stock (other than pursuant
to an Approved ESOP or an Approved ESPP), voluntarily prepay, acquire or
anticipate any sinking fund requirement of any indebtedness, or make any
distributions in cash or assets to any Borrower's shareholders or any Borrower's
affiliate; it being understood and agreed, however, that so long as (i) no Event
of Default shall have occurred, and no act, event or condition shall have
occurred which with notice or the lapse of time, or both, shall constitute an
Event of Default; and (ii) the dividends, distributions and payments authorized
below cannot reasonably be expected to cause any Borrower to be unable to
satisfy the financial covenants set forth in Section 6.15 of this Agreement, the
Borrowers shall be entitled to:

               (i)    pay dividends on the Parent Company's Redeemable Common B
Stock, provided that the dividend rate and aggregate amount of Common B Stock
dividends do not exceed the rates and amounts permitted by the Borrowers'
Certificate of Incorporation, as in effect on the date hereof;

               (ii)   redeem the Parent Company's Redeemable Common B Stock in
connection with 401(k) transactions;

               (iii)  purchase or redeem stock in subsidiaries of the Parent
Company held by minority shareholders, provided that the aggregate purchase
price of all such purchases or redemptions does not, at any time, exceed Two
Million and No/100 Dollars ($2,000,000.00) throughout the term of the Loan; and

               (iv)   pay dividends on any Borrower's capital stock (other than
the Parent Company, as provided above); provided that (A) if the dividends are
payable solely to another Borrower, there shall be no limitation on the amount
paid, and (B) if the dividends are payable to both a Borrower and non-Borrower,
the amount of any and all dividends paid shall not exceed Two Hundred
Seventy-five Thousand and No/100 Dollars ($275,000.00), in the aggregate, per
annum.

            (b) make any loans, salary advances or other payments to (i) any
shareholders of any Borrower, unless such shareholder is also a Borrower party
to this Agreement in which the Administrative Agent has a perfected security
interest in and to all of its assets constituting Collateral at the time such
loan, salary advance or other payment is made; (ii) any corporation or other
enterprise directly or indirectly owned in whole or in part by any shareholder
of any Borrower, unless such corporation or other enterprise is also a Borrower
party to this Agreement in which the Administrative Agent has a perfected
security interest in and to all of its assets constituting Collateral at the
time such loan, salary advance or other payment is made; or (iii) any other
person or entity; provided, however, that the Borrowers may make or continue to
have outstanding any or all of the following:


               (i)    loans or advances to any individual officer, present
employee or former employee of any Borrower of not more than Three Hundred
Thousand and No/100

                                       46



Dollars ($300,000.00), provided, that all such loans and advances to officers
may not at any time exceed Nine Hundred Thousand and No/100 Dollars
($900,000.00), in the aggregate; it being understood that travel advances made
in the ordinary course of business shall not be included in calculating the
foregoing computation;

               (ii)   loans, advances and/or investments from one Borrower to
another Borrower; provided that (A) the aggregate amount of all loans or
advances to, or net after tax cash investments in Vobix (including direct
borrowings from the Administrative Agent or the Lenders to Vobix) shall not, at
any time, exceed Ten Million and No/100 Dollars ($10,000,000.00), in the
aggregate; (B) the aggregate amount of all loans or advances to, or net after
tax investments in ARL (including direct borrowings from the Administrative
Agent or the Lenders to ARL) shall not, at any time, exceed Six Million and
No/100 Dollars ($6,000,000.00), in the aggregate; and (C) the Administrative
Agent has a perfected security interest in and to all of each Borrower's assets
constituting Collateral;

               (iii)  loans, advances and/or investments in the amounts which
are unpaid or outstanding as of the date hereof and listed on Schedule 7.8(c)
                                                              ---------------
hereto, together with such other loans, advances and/or investments that any
Borrower may hereafter make or extend to any non-Borrower (to the extent such
loans, advances and/or investments are not otherwise addressed in this Section
7.8); provided that (A) all such loans, advances and investments may not at any
time exceed Twelve Million and No/100 Dollars ($12,000,000.00), in the
aggregate; (B) the debt or equity security issued in connection therewith shall
have been pledged to the Administrative Agent, for the benefit of the Lenders,
pursuant to documentation reasonably satisfactory to the Administrative Agent;
and (C) with respect to any loan, advance or investment made after the Closing
Date, the Borrowers shall have maintained excess availability under Facility A,
during the thirty (30) day period immediately preceding the date on which the
particular loan, advance and/or investment is made, in an amount not less than
Seven Million and No/100 Dollars ($7,000,000.00);

               (iv)   trade credit extended to customers of the Borrowers in the
ordinary course of business;

               (v)    Ordinary Course Payments;

               (vi)   negotiable instruments endorsed for deposit or collection
in the ordinary course of business;

               (vii)  securities or certificates of deposit with maturities of
two (2) years or less; provided that, concurrent with such investment, any and
all securities or certificates of deposit (other than those acquired in
connection with RABBI trusts and deferred compensation plans) shall have been
pledged to the Administrative Agent, for the benefit of the Lenders, pursuant to
documentation reasonably satisfactory to the Administrative Agent;

               (viii) with respect to the First Source Debt, (a) regularly
scheduled payments thereof (including payment at maturity), except to the extent
any such payment shall be prohibited pursuant to the First Source Debt Credit
Agreement, and (b) subject to Section 1.5 of this Agreement, the prepayment of
the First Source Debt; provided that such prepayment is

                                       47



funded solely from the proceeds of an initial public offering expressly
permitted pursuant to Section 7.1(b) of this Agreement; and

               (ix)  so long as no Event of Default shall have occurred and be
continuing, regularly scheduled payments on any other indebtedness expressly
permitted pursuant to Section 7.7 of this Agreement.


     7.9.  Lease Obligations.
           -----------------

           (a) Except as may be expressly permitted by Section 7.7 of this
Agreement, enter into any new lease of real or personal property, except in the
ordinary course of business; or

           (b) enter into any operating lease (other than a lease for real
property) if the aggregate amount of payments due under any and all operating
leases of the Borrower(s) shall, at any time, exceed the Dollar Equivalent
Amount of Four Million Five Hundred Thousand and No/100 Dollars ($4,500,000.00)
during any twelve (12) month period; it being understood and agreed that
payments now or hereafter due in connection with the Enterprise Resource
Planning Operating Lease shall not be included in the foregoing computation so
long as the aggregate amount of such payments does not exceed Eight Million One
Hundred Thousand and No/100 Dollars ($8,100,000.00) throughout the term of the
Loan.

     7.10. Duty Deferment Bond. Modify or amend, in any respect, the Duty
           -------------------
Deferment Bond, without the prior written consent of the Administrative Agent;
it being expressly understood and agreed that the Administrative Agent's consent
shall not be required for any change in the amount of the Duty Deferment Bond so
long as the Borrowers shall have provided to the Administrative Agent not less
than two (2) Business Days' prior written notice of such change, together with a
copy of the proposed amended Duty Deferment Bond.

     7.11. Lockbox Deposits. Permit or cause any and all payments required to be
           ----------------
made directly to the Administrative Agent, pursuant to Section 11.2 of this
Agreement, to be made or directed to any other person or entity, without the
prior approval of the Administrative Agent.

                                    ARTICLE 8
                               COLLATERAL ACCOUNT

     From and after the occurrence of an Event of Default, upon the request of
the Administrative Agent, the Borrowers will deposit or cause to be deposited
into a collateral account (the "Collateral Account") designated by the
Administrative Agent, all checks, drafts, cash and other remittances received by
the Borrowers, and shall deposit such items for credit to the Collateral Account
within one (1) Business Day of the receipt thereof and in precisely the form
received. Pending such deposit, the Borrowers will not commingle any such items
of payment with any of their other funds or property, but will hold them
separate and apart.

     The Borrowers hereby covenant and agree that the Collateral Account shall
secure the Obligations and hereby grants, assigns and transfers to or at the
direction of the Administrative Agent, on behalf of the Lenders, a continuing
security interest in all of the Borrowers' right, title

                                       48



and interest in and to the Collateral Account, whenever created or established.
Subject to the terms of this Agreement or any other Loan Document, from and
after the occurrence of an Event of Default, the Administrative Agent may apply
funds in the Collateral Account to any of the Obligations, including, without
limitation, any principal, interest or other payment(s) not made when due,
whether arising under this Loan Agreement and/or any other Loan Document, or any
other Obligation of the Borrowers, without notice to the Borrowers, without
regard to the origin of the deposits in the account, the beneficial ownership of
the funds therein or whether such Obligations are owed jointly with another or
severally; the order and method of such application to be in the sole discretion
of the Administrative Agent, subject to the terms of this Agreement and the
other Loan Documents. The Administrative Agent's right to deduct sums due under
the Loan Documents from the Borrowers' account(s) shall not relieve the
Borrowers from their obligation to make all payments required by the Loan
Documents as and when required by the Loan Documents, and the Administrative
Agent shall not have any obligation to make any such deductions or any liability
whatsoever for any failure to do so.

                                   ARTICLE 9
                              DEFAULT AND REMEDIES

        9.1.    Events of Default.  Any one of the following events shall be
                -----------------
considered an "Event of Default":


                (a) if any Borrower shall fail to pay any principal, interest or
other sum owing on any of the Notes or any other Obligation when the same shall
become due and payable, whether by reason of acceleration or otherwise;

                (b) if the Borrowers shall exceed the Maximum Borrowing Base and
fail, immediately upon the happening of such occurrence, without notice or
demand therefor, to make a payment to the Administrative Agent in an amount
equal to or greater than the Borrowing Base Deficiency;

                (c) if any Borrower shall fail to pay and satisfy in full,
within ten (10) days of the rendering thereof, any judgment against any Borrower
in excess of the Dollar Equivalent Amount of Five Hundred Thousand and No/100
Dollars ($500,000.00) which is not, to the reasonable satisfaction of the
Administrative Agent, fully bonded, stayed, covered by insurance or covered by
appropriate reserves;

                (d) if any warranty or representation set forth herein or in any
other Loan Document made by any Borrower or any other party to any of the Loan
Documents shall be misleading or untrue in any material respect when made or
remade;

                (e) if there shall be non-compliance with or a breach of any of
the Affirmative Covenants or Negative Covenants contained in this Agreement, or
any other covenants or agreements of any Borrower or any other person set forth
herein, in any of the Notes or in any other Loan Document;

                (f) if (i) without the prior written consent of the
Administrative Agent, any Borrower (other than the Borrowers listed on Schedule
                                                                       --------
9.1 hereto) shall be liquidated or
- ---

                                       49



dissolved or shall discontinue its business; (ii) a trustee or receiver is
appointed for any Borrower or for all or a substantial part of its assets; (iii)
any Borrower makes a general assignment for the benefit of creditors; (iv) any
Borrower files or is the subject of any insolvency proceeding or petition in
bankruptcy, which in the case of an involuntary bankruptcy, remains undismissed
for sixty (60) days; (v) any Borrower (other than the Borrowers listed on
Schedule 5.23 hereto) shall become insolvent or any Borrower shall at any time
- -------------
fail generally to pay its debts as such debts become due; or (vi) any
governmental agency or bankruptcy court or other court of competent jurisdiction
shall assume custody or control of the whole or any part of the assets of any
Borrower;

               (g) if any Borrower's property or assets, including, without
limitation, any deposit accounts, are levied upon, attached or subject to any
other enforcement proceeding, which is not fully bonded or stayed;

               (h) the reorganization of any Borrower, without the prior written
consent of the Administrative Agent;

               (i) if any obligation of any Borrower for the payment of borrowed
money, which involves amounts in excess of the Dollar Equivalent Amount of Two
Hundred Fifty Thousand and No/100 Dollars ($250,000.00), whether now existing or
hereafter created, incurred or arising, becomes or is declared to be due and
payable prior to the expressed maturity thereof, whether such obligation is owed
to a Lender or any other person;

               (j) if any Borrower is in default under any contract or
agreement, financial or otherwise, between such Borrower and any other person or
entity, involving amounts in excess of the Dollar Equivalent Amount of Five
Hundred Thousand and No/100 Dollars ($500,000.00), and the other party thereto
commences exercise of its rights and remedies under such contract or agreement
as a consequence of such default; and/or

               (k) if the Required Lenders believe there is a material adverse
change in the business, assets, properties, condition (financial or otherwise)
of the Borrowers, in the aggregate.

          9.2. Remedies. Upon the occurrence of any Event of Default, the
               --------
Administrative Agent, acting on behalf of the Lenders, may exercise any or all
of the following remedies:

               (a) Withhold disbursement of all or any part of the Loan
proceeds;

               (b) Terminate the Lenders' obligation to make further
disbursements of the Loan proceeds;

               (c) Declare all principal, interest and other sums owing on the
Obligations to be immediately due and payable without demand, protest, notice of
protest, notice of default, presentment for payment or further notice of any
kind; provided, however, that payments of amounts hereunder shall not be
accelerated by reason of (i) a default in the payment of any sum due and payable
hereunder or pursuant to any other Loan Document (a "Payment Default"), unless
such Payment Default remains uncured for five (5) days (with no notice of
default being

                                       50



required); and (ii) a default other than a Payment Default (a "Non-Payment
Default"), unless such Non-Payment Default remains uncured for fifteen (15) days
following notice thereof from the Administrative Agent to the Borrowers.
Notwithstanding the foregoing, no notice of a Non-Payment Default shall be
required prior to acceleration or prior to the Administrative Agent exercising
any other right or remedy under this Agreement or any other Loan Document, if
(i) the Administrative Agent in good faith believes that any such delay would
jeopardize the Lenders' security or the Administrative Agent's or Lenders' lien
priority or (ii) the default is a violation of Section 6.3(c) of this Agreement;

               (d) Without notice, redirect any and all of the Borrowers'
deposits to the Collateral Account;

               (e) Without notice, offset and apply against all or any part of
the Obligations then owing by any Borrower to any Lender, any and all money,
credits, stocks, bonds or other securities or property of any Borrower of any
kind or nature whatsoever on deposit with, held by or in the possession of any
Lender in any capacity whatsoever, including, without limitation, any deposits
with any Lender or any of its affiliates, to the credit of or for the account of
any Borrower. The Administrative Agent and Lenders are authorized at any time to
charge the Obligations against any Borrower's account(s), without regard to the
origin of deposits to the account or beneficial ownership of the funds. Any and
all amounts obtained by the Administrative Agent or any Lender pursuant to this
subsection (e) shall be shared by all of the Lenders ratably, in accordance with
each Lender's Percentage; it being expressly acknowledged and agreed that each
Lender, as well as the Administrative Agent, shall be entitled to exercise the
rights of set-off provided in this subsection (e) of this Section 9.2;

               (f) Exercise all rights, powers and remedies of a secured party
under the UCC and/or any other applicable law(s), including, without limitation,
the right to (i) require any Borrower to assemble the Collateral (to the extent
that it is movable) and make it available to the Administrative Agent at a place
to be designated by the Administrative Agent, and (ii) enter upon any Borrower's
premises, peaceably by the Administrative Agent's own means or with legal
process, and take possession of, render unusable or dispose of the Collateral on
such premises; each Borrower hereby agreeing not to resist or interfere with any
such action. The Administrative Agent agrees to give the Borrowers written
notice of the time and place of any public sale of the Collateral or any part
thereof, and the time after which any private sale or any other intended
disposition of the Collateral is to be made, and such notice will be mailed,
postage prepaid, to the principal place of business of the Borrowers, at least
ten (10) days before the time of any such sale or disposition. Each Borrower
hereby authorizes and appoints the Administrative Agent and its successors and
assigns to (x) sell the Collateral, and (y) declare that each Borrower assents
to the passage of a decree by a court of proper jurisdiction for the sale of the
Collateral. Any such sale pursuant to (x) or (y) above is to be made in
accordance with the applicable provisions of the laws and rules of procedure of
the Commonwealth of Virginia or other applicable law; and/or

               (g) Proceed to enforce such other and additional rights and
remedies as the Administrative Agent and/or Lenders may have hereunder and/or
under any of the other Loan Documents, or as may be provided by applicable law.

                                       51



         It is expressly understood and agreed that the Lenders and/or the
Administrative Agent may exercise their respective rights under this Agreement
or under any other Loan Document without exercising the rights or affecting the
security afforded by any other Loan Document, and it is further understood and
agreed that the Administrative Agent may proceed against all or any portion of
the Collateral in such order and at such times as the Administrative Agent, in
its sole discretion, sees fit; and each Borrower hereby expressly waives, to the
extent permitted by law, all benefit of valuation, appraisement, marshaling of
assets and all exemptions under the laws of the Commonwealth of Virginia and/or
any other state, district or territory of the United States. Notwithstanding the
foregoing delegation of authority by the Lenders to the Administrative Agent, it
is agreed that at any time there are two (2) or fewer Lender parties to this
Agreement, any Lender may request the Administrative Agent to commence
enforcement action against the Borrowers and/or Collateral upon an Event of
Default. In this event, if the Administrative Agent fails or refuses to take
enforcement action upon the request of a Lender, such Lender may itself commence
appropriate enforcement action. Furthermore, if any Borrower shall default in
the performance when due of any of the provisions of this Agreement, the
Administrative Agent, without notice to or demand upon the Borrowers (and
without any grace or cure period) and without waiving or releasing any of the
Obligations or any default hereunder, under the Notes or under any other Loan
Document, may (but shall be under no obligation to) perform the same for each
Borrower's account, and any monies expended in so doing shall be chargeable to
the Borrowers with interest, at the highest rate of interest payable under
Notes, plus two percent (2%), and added to the indebtedness secured by the
Collateral.

         All sums paid or advanced by the Administrative Agent in connection
with the foregoing or otherwise in connection with the Loan, and all court costs
and expenses of collection, including without limitation, reasonable attorneys'
fees and expenses (and fees and expenses resulting from the taking, holding or
disposition of the Collateral) incurred in connection therewith shall be paid by
the Borrowers upon demand and shall become a part of the Obligations secured by
the Collateral. The Borrowers agree to bear the expense of each lien search,
property and judgment report or other form of Collateral ownership investigation
as the Administrative Agent, in its discretion, shall deem necessary or
desirable to assure or further assure to the Lenders and/or the Administrative
Agent their respective interests in the Collateral.

                                   ARTICLE 10
                               THE AGENTS; AGENCY

         10.1. Appointment. Each Lender hereby affirms its irrevocable
               -----------
appointment of Citizens Bank to act as Administrative Agent and PNC to act as
Documentation Agent for each such Lender pursuant to the provisions of this
Agreement and the other Loan Documents, and affirms its irrevocable
authorization given to the Agents to take such action, and exercise such powers
and perform such duties as are expressly delegated to or required of the Agents
by the terms hereof or thereof, or are reasonably incidental thereto, including
without limitation, executing documents on behalf of the Lenders, as agent.
Citizens Bank affirms its agreement to act as Administrative Agent and PNC
affirms its agreement to act as Documentation Agent on behalf of the Lenders on
the terms and conditions set forth in this Agreement and the other Loan
Documents, subject to their right to resign as provided in Section 10.10. Each
Lender agrees that the rights and remedies granted to the Agents under this
Agreement and the other Loan Documents shall be exercised exclusively by the
Agents, and that no Lender shall have the right

                                       52



individually to exercise any such right or remedy, except to the extent
expressly provided herein or therein.

     10.2. General Nature of Agents' Duties. Notwithstanding anything to the
           --------------------------------
contrary elsewhere in this Agreement or any other Loan Document:

           (a) The Agents shall have no duties or responsibilities other than
those expressly set forth in this Agreement and the other Loan Documents, and no
implied duties or responsibilities on the part of the Agents shall be read into
this Agreement or any other Loan Document or shall otherwise exist.

           (b) The duties and responsibilities of the Agents under this
Agreement and the other Loan Documents shall be mechanical and administrative in
nature, and the Agents shall not have a fiduciary relationship in respect of any
Lender, except with respect to funds or collateral any Agent receives on behalf
of any Lender.

           (c) Each Agent is and shall be solely the agent of the Lenders. Each
Agent does not assume, and shall not at any time be deemed to have, any
relationship of agency or trust with or for, or any other duty or responsibility
to, any Borrower or any other person (except only for its relationship as agent
for, its express duties and responsibilities as agent for, and its express
duties and responsibilities to, the Lenders as provided in this Agreement and
the other Loan Documents).

           (d) Neither Agent shall be under any obligation to take any action
hereunder or under any other Loan Document if such Agent believes in good faith
that taking such action may conflict with any Applicable Laws, or any provision
of this Agreement or any other Loan Document, or may require the such Agent to
qualify to do business in any jurisdiction where it is not then so qualified.

     10.3. Exercise of Powers.
           ------------------

           (a) The Agents shall have the authority to take any action of the
type specified in this Agreement or any other Loan Document as being within each
Agent's rights, powers or discretion, as it determines in its sole discretion,
except as provided in subsection (b) below, and except as provided in any other
Loan Document which expressly requires the direction or consent of (i) the
Required Lenders; or (ii) all of the Lenders, in either of which circumstances
such Agent shall not take such action absent such direction or consent. Any
action or inaction pursuant to such direction or consent shall be binding on all
of the Lenders.

           (b) The Administrative Agent shall not in any material respect amend,
modify, grant consents or waive any term or provision of this Agreement or any
other Loan Document without the consent or approval of the Required Lenders, or
declare an Event of Default, provide formal written notice of default to any
Borrower or exercise any rights or remedies against any Borrower without the
prior consent of the Required Lenders. Each Lender agrees that its decision to
consent to or reject any request by the Administrative Agent for permission to
declare an Event of Default, provide formal notice thereof to any Borrower
and/or exercise any rights or remedies arising by virtue of such default, shall
be made as soon as

                                       53



reasonably practicable after the Lender has received all relevant information
with respect to such request, but in all events within five (5) Business Days of
the receipt of such information; it being understood and agreed that, unless
otherwise provided herein, the Administrative Agent shall exercise any and all
rights and responsibilities on behalf of the Lenders in connection with an Event
of Default. Additionally, only with the consent or approval of all of the
Lenders, the Administrative Agent may (a) extend the final maturity of the Loan
or any Note, reduce the interest rate payable on or extend the time of payment
for any installment of principal, interest or fees payable in connection with
the Loan, or issue Letters of Credit (i) having an expiration date beyond the
Maturity Date, except as otherwise expressly provided in this Agreement, or (ii)
causing the aggregate outstanding amount of all such Letters of Credit issued to
exceed Ten Million Dollars ($10,000,000); (b) change the Percentage of the
Commitment Amount of any Lender, (c) release all or a substantial portion of the
Collateral, except in accordance with the provisions of any applicable Loan
Document, (d) amend the definition of the Required Lenders or expand the
definitions of Eligible Billed Government Accounts Receivable, Eligible Billed
Commercial Accounts Receivable and/or Eligible Unbilled Government Accounts
Receivable, (e) consent to the assignment or transfer by any Borrower of any of
its rights or obligations hereunder, (f) amend, modify or waive any provisions
of this Section 10.3, (g) change the manner of application by the Administrative
Agent of payments made under the Loan Documents, or (h) change the method of
calculation used in connection with the computation of interest, commissions or
fees. Each Lender agrees that its decision to approve or reject any request for
an amendment or waiver with respect to this Agreement shall be made as soon as
reasonably practicable after the Lender has received all relevant information
with respect to such request.

         10.4. General Exculpatory Provisions. Notwithstanding anything to the
               ------------------------------
contrary elsewhere in this Agreement or any other Loan Document:

               (a) Neither Agent, in its capacity as Agent (but not as a
Lender), shall be liable for any action taken or omitted to be taken by it under
or in connection with this Agreement or any other Loan Document, unless caused
by its own gross negligence or willful misconduct.

               (b) Neither Agent shall be responsible for (i) the execution,
delivery, effectiveness, enforceability, genuineness, validity or adequacy of
this Agreement or any other Loan Document, (ii) any recital, representation,
warranty, document, certificate, report or statement in this Agreement or any
other Loan Document, (iii) any failure of any Borrower or any Lender to perform
any of their respective obligations under this Agreement or any other Loan
Document, (iv) the existence, validity, enforceability, perfection, recordation,
priority, adequacy or value, now or hereafter, of any lien or encumbrance or
other direct or indirect security afforded or purported to be afforded by any of
the Loan Documents, or otherwise from time to time, or (v) caring for,
protecting, insuring or paying any taxes, charges or assessments with respect to
any Collateral.

               (c) Neither Agent shall be under any obligation to ascertain,
inquire or give any notice relating to (i) the performance or observance of any
of the terms or conditions of this Agreement or any other Loan Document on the
part of any Borrower, (ii) the business,

                                       54



operations, condition (financial or otherwise) or prospects of any Borrower, or
(iii) except to the extent as may be set forth in Article 9 hereof, the
existence of any Event of Default.

           (d) Neither Agent shall be under any obligation, either initially or
on a continuing basis, to provide any Lender with any notices, reports or
information of any nature, whether in its possession presently or hereafter,
except for such notices, reports and other information expressly required by
this Agreement or any other Loan Document to be furnished by the Agent to such
Lender.

     10.5. Administration by the Agent.
           ---------------------------

           (a) Each Agent may rely upon any notice or other communication of any
nature (written or oral, including telephone conversations, whether or not such
notice or other communication is made in a manner permitted or required by this
Agreement or any other Loan Document) purportedly made by or on behalf of the
proper party or parties, and neither Agent shall have any duty to verify the
identity or authority of any person giving such notice or other communication.

           (b) Each Agent may consult with legal counsel (including in-house
counsel for such Agent), independent public accountants and any other experts
selected by such Agent from time to time, and neither Agent shall be liable for
any action taken or omitted to be taken in good faith by it in accordance with
the advice of such counsel, accountants or experts.

           (c) Each Agent may conclusively rely upon the truth of the statements
and the correctness of the opinions expressed in any certificates or opinions
furnished to such Agent in accordance with the requirements of this Agreement or
any other Loan Document. Whenever either Agent shall deem it necessary or
desirable that a matter be proved or established with respect to any Borrower or
any Lender, such matter may be established by a certificate of such Borrower or
such Lender, as the case may be, and such Agent may conclusively rely upon such
certificate.

           (d) Each Agent may fail or refuse to take any action unless it shall
be indemnified to its satisfaction from time to time against any and all
amounts, liabilities, obligations, losses, damages, penalties, actions,
judgments, suits, costs, expenses and disbursements of every kind and nature
which may be imposed on, incurred by or asserted against such Agent by reason of
taking or continuing to take any such action; provided that no Lender shall be
obligated to indemnify such Agent for any portion of such amounts, liabilities,
obligations, losses, damages, penalties, actions, judgments, suits, costs,
expenses and disbursements resulting solely from the gross negligence or willful
misconduct of such Agent, as finally determined by a court of competent
jurisdiction.

           (e) Each Agent may perform any of its duties under this Agreement or
any other Loan Document by or through agents or attorneys-in-fact. Neither Agent
shall be responsible for the negligence or misconduct of any agents or
attorneys-in-fact selected by it with reasonable care.

                                       55



              (f) Neither Agent shall be deemed to have any knowledge or notice
of the occurrence of any Event of Default (other than a default in the payment
of regularly scheduled principal or interest), unless such Agent has received
from a Lender or a Borrower a written notice referring to this Agreement,
describing the Event of Default, and stating that such notice is a "notice of
default". If either Agent receives such a notice, such Agent shall give prompt
notice thereof to each Lender.

              (g) The Administrative Agent shall provide three (3) Business Days
prior notice to the Lenders of any field audit scheduled to be performed by the
Administrative Agent pursuant to Section 1.6 of this Agreement. The Lenders
shall be entitled to (i) receive copies of field audits performed by the
Administrative Agent, and (ii) accompany the Administrative Agent to any field
audit, provided that the Administrative Agent may, in its discretion, limit the
number of Lenders attending any such field audit.

         10.6. Lenders Not Relying on Agent or Other Lenders. Each Lender
               ---------------------------------------------
acknowledges as follows:

               (a) Neither Agent nor any other Lender has made any
representations or warranties to it, and no act taken hereafter by either Agent
or any other Lender shall be deemed to constitute any representation or warranty
by such Agent or such other Lender to it.

               (b) It has, independently and without reliance upon either Agent
or any other Lender, and based upon such documents and information as it has
deemed appropriate, made its own credit and legal analysis and decision to enter
into this Agreement and the other Loan Documents.

               (c) It will, independently and without reliance upon either Agent
or any other Lender, and based upon such documents and information as it shall
deem appropriate at the time, make its own decisions to take or not take action
under or in connection with this Agreement and the other Loan Documents.

         10.7. Indemnification. Each Lender agrees to reimburse and indemnify
               ---------------
each Agent and each Agent's directors, officers, employees and agents (to the
extent not reimbursed by the Borrowers, and without limitation of the obligation
of the Borrowers to do so), ratably in accordance with each Lender's Percentage,
from and against any and all amounts, losses, liabilities, claims, damages,
expenses, obligations, penalties, actions, judgments, suits, costs and
disbursements of every kind or nature (including the reasonable fees and
disbursements of counsel for each Agent or such other person in connection with
any investigative, administrative or judicial proceeding commenced or
threatened, whether or not either Agent or such other person shall be designated
a party thereto) that may at any time be imposed on, incurred by or asserted
against such Agent or such other person as a result of this Agreement, any other
Loan Document, any transaction from time to time contemplated hereby or thereby,
or any transaction financed in whole or in part or directly or indirectly with
the proceeds of the Loan; provided that no Lender shall be obligated to
                          --------
indemnify such Agent or such other person for any portion of such amounts,
losses, liabilities, claims, damages, expenses, obligations, penalties, actions,
judgments, suits, costs or disbursements resulting solely from the gross
negligence or willful

                                       56



misconduct of the person seeking indemnity, as finally determined by a court of
competent jurisdiction.

         10.8.  Agent in its Individual Capacity; Agents' Commitment.
                ----------------------------------------------------

                (a) With respect to their commitments and the Obligations owing
to them, Citizens Bank and PNC shall have the same rights and powers under this
Agreement and each other Loan Document as any other Lender, and may exercise the
same as though they were not the Agents. The terms "Lender," "holders of Notes"
and like terms shall include Citizens Bank and PNC in their individual
capacities. Citizens Bank and PNC and their respective affiliates may, without
liability to account for, make loans to, accept deposits from, acquire debt or
equity interests in, act as trustee under indentures of and engage in any other
business with any Borrower and any stockholder, subsidiary or affiliate of any
Borrower, as though Citizens Bank and PNC were not the Agents hereunder.

                (b) The Administrative Agent hereby agrees that it shall at all
times maintain, at a minimum, the lesser of (the "Agent's Commitment"):

                        (i)  a Ten Million and No/100 Dollar ($10,000,000.00)
interest in the aggregate Commitment Amount; or

                        (ii) a Percentage of the Commitment Amount that is at
least equal to ten percent (10%).

In the event the Administrative Agent fails to maintain the Agent's Commitment,
the Administrative Agent agrees to resign as the Administrative Agent hereunder,
if requested by the Borrowers, pursuant to Section 10.10 of this Agreement; it
being expressly acknowledged and agreed that the Borrowers shall be third party
beneficiaries of the Agent's Commitment requirement set forth in this Section
10.8(b).

         10.9.  Holders of Notes. The Administrative Agent may deem and treat
                ----------------
any Lender which is the payee of a Note as the owner and holder of such Note for
all purposes hereof unless and until written notice evidencing such transfer
shall have been filed with the Administrative Agent. Any authority, direction or
consent of any person who at the time of giving such authority, direction or
consent was a Lender shall be conclusive and binding on each present and
subsequent holder, transferee or assignee of any Note or Notes payable to such
Lender or issued in exchange therefor.

         10.10. Successor Agent. Either Agent may resign at any time by giving
                ---------------
thirty (30) days prior written notice thereof to the Lenders and Borrowers,
subject to appointment of a successor Agent (and such appointees acceptance of
appointment) as below provided in this Section 10.10. Additionally, either Agent
may be removed for cause by all of the Lenders (other than such Agent, if such
Agent is then a Lender), or the Borrowers may request an Agent's resignation
pursuant to Section 10.8(b), if removal or resignation, as applicable, is
requested in writing (which wording must specifically identify the "cause" for
removal), and ten (10) days' prior written notice of removal or resignation is
provided to such Agent and Borrowers (or Lenders, if applicable). Upon any such
resignation or removal, the Lenders shall appoint the

                                       57



other Agent as the successor Documentation Agent or Administrative Agent, as the
case may be. All references to the "Agents" in the Loan Documents shall be
deemed to mean the person(s) acting as the Documentation Agent and
Administrative Agent, and it is understood that it is possible that the same
person may be acting in both capacities. If such other Agent fails or refuses to
accept such appointment within thirty (30) days after such notice of resignation
or removal, then the retiring Agent shall, on behalf of the Lenders, immediately
appoint, as its successor, another Lender; provided that such Lender is a
commercial bank or trust company organized under the laws of the United States
of America or any State thereof and has a combined capital and surplus of at
least One Billion and No/100 Dollars ($1,000,000,000.00). In such event, the
Agent's resignation or removal shall not be effective until the successor Agent
shall have accepted its appointment. Upon the acceptance by a successor Agent of
its appointment as Agent hereunder, such successor Agent shall thereupon succeed
to and become vested with all of the properties, rights, powers, privileges and
duties of the former Agent, without further act, deed or conveyance. Upon the
effective date of resignation or removal of a retiring Agent, such Agent shall
be discharged from its duties under this Agreement and the other Loan Documents,
but the provisions of this Agreement shall continue to be binding on and inure
to its benefit as to any actions taken or omitted by it while it was Agent under
this Agreement. If for any reason, at any time, there is no Administrative Agent
hereunder, then during such period, the Required Lenders shall have the right to
exercise the Administrative Agent's rights and perform its duties hereunder,
except that (i) all notices or other communications required or permitted to be
given to the Administrative Agent shall be given to each Lender, and (ii) all
payments to be made to the Administrative Agent shall be made directly to the
Borrowers or the Lender for whose account such payment is made.

     10.11. Additional Agents. If the Administrative Agent shall from time to
            -----------------
time deem it necessary or advisable to engage other agents for its own
protection in the performance of its duties hereunder or in the interests of the
Lenders, then the Administrative Agent and Borrowers shall execute and deliver a
supplemental agreement and all other instruments and agreements necessary or
advisable, in the opinion of the Administrative Agent, to constitute another
commercial bank or trust company, or one or more other persons approved by the
Administrative Agent, to act as co-Agent or a separate agent with respect to any
part of the Collateral, with such powers as may be provided in such supplemental
agreement, and with the power to vest in such bank, trust company or other
person (as such co-Agent or separate agent, as the case may be), any properties,
rights, powers, privileges and duties of the Administrative Agent under this
Agreement or any other Loan Document.

     10.12. Calculations. Neither Agent shall be liable for any calculation,
            ------------
apportionment or distribution of payments made by it in good faith. If such
calculation, apportionment or distribution is subsequently determined to have
been made in error, the sole recourse of any Lender to whom payment was due but
not made shall be to recover from the Lenders any payment in excess of the
amount to which they are determined to be entitled, with interest thereon at the
Federal Funds Rate, or, if the amount due was not paid by any Borrower, to
recover such amount from such Borrower, with interest thereon at the rate
provided in the applicable Note.

                                       58



         10.13. Funding by the Administrative Agent.
                -----------------------------------

                (a) Except as otherwise provided in this Agreement, the
Administrative Agent alone shall be entitled to make all advances in connection
with the Loan and shall receive all payments and other receipts relating to the
Loan; it being understood, however, that the Administrative Agent has reserved
the right not to advance any amounts to the Borrowers which the Administrative
Agent has not received from the Lenders. The Administrative Agent will notify
each Lender of the date and amount of any requested advance, and if such
notification is received by 1:00 p.m. Washington, D.C. time on any given
Business Day, the Lenders shall provide the required funds to the Administrative
Agent no later than the close of business on such Business Day. Once per week,
or within such shorter time frame as may be requested by the Administrative
Agent, the Administrative Agent and each Lender shall pay to each other such
amounts (the "Equalization Payments") as may be necessary to cause each Lender
to own its applicable Percentage of the Loan and otherwise implement the terms
and provisions of this Agreement; it being understood that each Lender shall be
entitled to receive interest on amounts advanced by it only from the date of
such Lender's advance of funds. The obligation of the Administrative Agent and
each Lender to make Equalization Payments shall not be affected by a bankruptcy
filing by any Borrower, the occurrence of any Event of Default or any other act,
occurrence or event whatsoever, whether the same occurs, before, on or after the
date on which an Equalization Payment is required to be made. All Equalization
Payments shall be made by 1:00 p.m. Washington, D.C. time on the date such
payment is required.

                (b) Unless the Administrative Agent shall have been notified in
writing by any Lender no later than the close of business on the Business Day
before the Business Day on which an advance requested by the Borrowers is to be
made, that such Lender will not make its ratable share of such advance, the
Administrative Agent may assume that such Lender will make its ratable share of
the advance, and in reliance upon such assumption the Administrative Agent may
(but in no circumstances shall be required to) make available to the Borrowers a
corresponding amount. If and to the extent that any Lender fails to make such
payment to the Administrative Agent when required, such Lender shall pay such
amount on demand (or, if such Lender fails to pay such amount on demand, the
Borrowers shall arrange for the repayment of such amount to the Administrative
Agent), together with interest for the Administrative Agent's own account for
each day from and including the date of the Administrative Agent's payment, to
and including the date of repayment to the Administrative Agent (before and
after judgment). Interest (a) if paid by such Lender (i) for each day from and
including the date of the Administrative Agent's payment to and including the
second Business Day thereafter, shall accrue at the Federal Funds Rate for such
day, and (ii) for each day thereafter, shall accrue at the rate or rates per
annum payable under the Notes; and (b) if paid by the Borrowers, shall accrue at
the rate or rates per annum payable under the Notes. All payments to the
Administrative Agent under this Section shall be made to the Administrative
Agent at its office set forth in the preamble of this Agreement (or as otherwise
directed by the Administrative Agent), in dollars, in immediately available
funds, without set-off, withholding, counterclaim or other deduction of any
nature.

                (c) All borrowings under this Agreement shall be incurred from
the Lenders pro rata on the basis of their respective Percentages (except to the
extent advanced (i) as a Swing

                                       59



Line Loan, or (ii) by the Administrative Agent on behalf of any Lender as
provided in subsection (a) or (b) above). It is understood that no Lender shall
be responsible for any other Lender's failure to meet its obligation to make
advances hereunder, and that each Lender shall be obligated to make advances
required to be made by it hereunder regardless of the failure of any other
Lender to make its advances hereunder.

            (d) Each payment and prepayment received by the Administrative Agent
for the account of the Lenders shall be distributed first to the Swing Line
Lender for application to any Swing Line Outstandings, and then to each Lender
entitled to share in such payment, ratably in accordance with each Lender's
Percentage. Notwithstanding the provisions of Section 9.2(d) of this Agreement,
any Lender who has failed to fund its Percentage of any advance under the Loan
shall not be entitled to share in any such payment(s) until such time as the
funding deficiency caused thereby, together with interest thereon (as provided
in subsection (b) above), has been paid to the Administrative Agent in
accordance with the terms and conditions of this Agreement. Payments from the
Administrative Agent to the Lenders shall be made by wire transfer in accordance
with written instructions provided to the Administrative Agent by the Lenders
from time to time. Unless the Administrative Agent shall have received notice
from the Borrowers prior to the date on which any payment is due to the Lenders
hereunder that the Borrowers will not make such payment in full, the
Administrative Agent may assume that the Borrowers have made such payment in
full on such date and the Administrative Agent, in reliance upon such
assumption, may cause to be distributed to each Lender on such due date an
amount equal to the amount then due such Lender. If and to the extent the
Borrowers shall not have made such payment in full to the Administrative Agent,
each Lender shall repay to the Administrative Agent upon its demand therefor
such amount distributed to such Lender, together with interest thereon at the
overnight Federal Funds Rate for each day from the date such amount is
distributed to such Lender until the date such Lender repays such amount to the
Administrative Agent.

            (e) If any Lender shall obtain any payment (whether voluntary,
involuntary, through the exercise of any right of setoff, or otherwise) in
excess of such Lender's Percentage of payments, such Lender shall forthwith
purchase from the other Lender(s) such participations in the Loans made by them
as shall be necessary to cause such purchasing Lender to share the excess
payment ratably with each of the other Lender(s); provided, however, if all or
any portion of such excess payment is thereafter recovered from such purchasing
Lender, such purchase from the other Lender(s) shall be rescinded and each other
Lender shall repay to the purchasing Lender the purchase price to the extent of
such recovery, together with an amount equal to such Lender's ratable share
(according to the proportion of (1) the amount of such Lender's required
repayment, to (2) the total amount so recovered from the purchasing Lender) of
any interest or other amount paid or payable by the purchasing Lender in respect
of the total amount recovered. Each Borrower agrees that any Lender purchasing a
participation from another Lender pursuant to this Section 10.13(e), to the
fullest extent permitted by law, may exercise all of its rights of payment with
respect to such participation as fully as if such Lender were the direct
creditor of the Borrowers in the amount of such participation.

     10.14. Benefit of Article. The provisions of this Article 10 are solely for
            ------------------
the benefit of the Agents and Lenders. Except as provided in Section 10.8(b) of
this Agreement, no Borrower shall have any rights under any of the provisions of
this Article 10; it being understood

                                       60



that the provisions of this Article 10 are not in limitation of any right,
power, duty, obligation or liability which the Agents would have to or against
any Borrower.

                                   ARTICLE 11
                          CERTAIN ADDITIONAL RIGHTS AND
                      OBLIGATIONS REGARDING THE COLLATERAL

     11.1. Power of Attorney. Each Borrower hereby reaffirms its irrevocable
           -----------------
appointment of the Administrative Agent, as its agent and attorney-in-fact, with
power of substitution, having full power and authority, in its own name, in the
name of any Lender(s), in the name of any Borrower or otherwise (but at the cost
and expense of the Borrowers and without notice to any Borrower), but only after
the occurrence of an Event of Default which remains uncured beyond any
applicable notice and grace period, to (i) notify account debtors obligated on
any of the Receivables to make payments thereon directly to the lockbox
referenced in Section 11.2 of this Agreement, and to take control of the cash
and non-cash proceeds of any such Receivables; (ii) compromise, extend or renew
any of the Collateral constituting Receivables or deal with any of the
Collateral as the Administrative Agent may deem advisable; (iii) release its
interest in, make exchanges or substitutions for and/or surrender, all or any
part of any Borrower's interest in all or any part of the Collateral; (iv)
remove from any Borrower's place(s) of business all books, records, ledger
sheets, correspondence, invoices and documents relating to or evidencing any of
the Collateral, or without cost or expense to the Administrative Agent, make
such use of any Borrower's place(s) of business as may be reasonably necessary
to administer, control and/or collect the Collateral; (v) repair, alter or
supply goods, if any, necessary to fulfill in whole or in part the purchase
order of any Account Debtor; (vi) demand, collect receipt for and give renewals,
extensions, discharges and releases of all or any part of the Collateral; (vii)
institute and prosecute legal and equitable proceedings to enforce collection
of, or realize upon, all or any part of the Collateral; (viii) settle, renew,
extend, compromise, compound, exchange or adjust claims with respect to all or
any part of the Collateral or any legal proceedings brought with respect
thereto; and (ix) receive and open all mail addressed to any Borrower, and
notify the Post Office authorities to change the address for the delivery of
mail to any Borrower to such address as the Administrative Agent may designate;
it being understood that the rights granted to the Administrative Agent in this
clause (ix), which are operative on the occurrence of an Event of Default, shall
not in any way limit or impair the other rights provided to the Administrative
Agent and/or Lenders in this Agreement or any other Loan Document, including,
without limitation, their rights with respect to the Collateral Account and the
below-referenced lockbox. Furthermore, each Borrower hereby reaffirms its
irrevocable appointment of the Administrative Agent, as its agent and
attorney-in-fact, with power of substitution, having full power and authority,
in its own name, in the name of any Lender(s), in the name of any Borrower or
otherwise (but at the cost and expense of the Borrowers and without notice to
any Borrower) and regardless of whether an Event of Default has occurred or any
act, event or condition which with notice or the lapse of time, or both, would
constitute an Event of Default has occurred, to (a) file financing statements
and continuation statements covering the Collateral and execute the same on
behalf of any Borrower; (b) charge against any banking account of any Borrower
any item of payment credited to any Borrower's account which is dishonored by
the drawee or maker thereof; and/or (iii) endorse the name of any Borrower upon
any items of payment relating to the Collateral or upon any proof of claim in
bankruptcy against any Account Debtor.

                                       61



     11.2. Lockbox. Each Borrower hereby authorizes the Administrative Agent to
           -------
receive and collect any amount or amounts due or to become due on account of any
Receivables and, at its discretion, to apply the same to the repayment of the
Notes, and each Borrower agrees that, as of the date hereof, it has established
and shall continually maintain on terms and conditions satisfactory to the
Administrative Agent in all respects, one or more lockboxes (and, if required by
the Administrative Agent, one or more blocked accounts) for the collection of
Receivables. Except as otherwise may be approved by the Administrative Agent in
writing, any checks or other remittances received by any Borrower in payment of
the Receivables shall be held in trust by each Borrower for the Administrative
Agent and Lenders. Each Borrower shall, within thirty (30) days from the date
hereof (or within such longer period as may be reasonably required by any
Borrower), direct all of its customers (other than certain customers as may be
approved by the Administrative Agent) to make payments directly to the
Administrative Agent, and/or include on all of its invoices, a direction to its
customer to make all payments directly to the Administrative Agent, at:

           ManTech International Corporation
           P.O. Box 7777-W2155
           Philadelphia, Pennsylvania  19175-2155

     11.3. Other Agreements. Except as may otherwise be expressly permitted by
           ----------------
the terms of this Agreement, and without limiting any other restrictions or
provisions of this Agreement, each Borrower will (i) on demand, subject to any
confidentiality and secrecy requirements imposed by any Government agency, make
available in form reasonably acceptable to the Administrative Agent, shipping
documents and delivery receipts evidencing the shipment of goods which gave rise
to the sale or lease of inventory or of an account, contract right or chattel
paper, completion certificates or other proof of the satisfactory performance of
services which gave rise to the sale or lease of inventory or of an account,
contract right or chattel paper, and each Borrower's copy of any written
contract or order from which a sale or lease of inventory, an account, contract
right or chattel paper arose; and (ii) when requested, advise the Administrative
Agent when an Account Debtor returns or refuses to retain any goods, the sale or
lease of which gave rise to an account, contract right or chattel paper, and of
any delay in delivery or performance, or claims made in regard to any sale or
lease of inventory, account, contract right or chattel paper. Upon reasonable
notice, all such records will be available for examination by authorized agents
of the Administrative Agent.

     It is expressly understood and agreed, however, that the Administrative
Agent shall not be required or obligated in any manner to make any inquiries as
to the nature or sufficiency of any payment received by it or to present or file
any claims or take any other action to collect or enforce a payment of any
amounts which may have been assigned to it or to which it or the Lenders may be
entitled hereunder at any time or times.

                                   ARTICLE 12
                                  MISCELLANEOUS

     12.1. Remedies Cumulative. Each right, power and remedy of the Agents or
           -------------------
Lenders provided for in this Agreement or in any other Loan Document or now or
hereafter existing at law or in equity, by statute or otherwise, shall be
cumulative and concurrent and shall

                                       62



be in addition to every other right, power or remedy provided for in this
Agreement or in any other Loan Document, or now or hereafter existing at law or
in equity, by statute or otherwise, and the exercise or beginning of the
exercise by the Agents of any one or more of such rights, powers or remedies
shall not preclude the simultaneous or later exercise by the Agents of any or
all such other rights, powers or remedies.

     12.2. Waiver. Time is of the essence of this Agreement. No failure or delay
           ------
by the Administrative Agent to insist upon the strict performance of any term,
condition, covenant or agreement set forth in this Agreement or any other Loan
Document, or to exercise any right, power or remedy consequent upon a breach
thereof, shall constitute a waiver of such term, condition, covenant or
agreement or of any such breach, or preclude the Administrative Agent from
exercising any such right, power or remedy at any later time or times. By
accepting payment after the due date of any of the Obligations, neither the
Lenders nor the Administrative Agent shall be deemed to have waived either the
right to require prompt payment when due of all other Obligations, or the right
to declare a default for failure to make payment of any such other Obligations.

     12.3. Notices. Notices to either party shall be in writing and shall be
           -------
delivered personally or by first-class mail or nationally-recognized overnight
delivery service addressed to the parties at the addresses set forth below or
otherwise designated in writing:

         If to the Borrowers:   ManTech International Corporation
                                12015 Lee Jackson Highway
                                Fairfax, Virginia 22033
                                Attention: Ms. Tracy A. Wilson

         If to the Lenders:     Citizens Bank of Pennsylvania
                                8521 Leesburg Pike
                                Suite 405
                                Vienna, Virginia 22182
                                Attention: Ms. Maria A. Josephs

                                PNC Bank, National Association
                                One PNC Plaza
                                6th floor
                                249 Fifth Avenue
                                Pittsburgh, Pennsylvania 15222
                                Attention: Ms. Doreen K. Casey

                                Branch Banking and Trust Company of Virginia
                                8200 Greensboro Drive
                                Suite 250
                                McLean, Virginia 22102
                                Attention: Mr. Ronald P. Gudbrandsen

                                and

                                       63


                                      Chevy Chase Bank, F.S.B.
                                      Government Contracting & Technology Group
                                      7501 Wisconsin Avenue
                                      12th Floor
                                      Bethesda, Maryland 20814
                                      Attention: Ms. Marsha Thompson

         If to the Administrative     Citizens Bank
         Agent:                       8521 Leesburg Pike
                                      Suite 405
                                      Vienna, Virginia 22182
                                      Attention: Ms. Maria A. Josephs

         If to the Documentation      PNC Bank, National Association
         Agent:                       One PNC Plaza
                                      6th floor
                                      249 Fifth Avenue
                                      Pittsburgh, Pennsylvania 15222
                                      Attention: Ms. Doreen Casey

         with a copy of all notices
         to any Lender or Agent to:   Dickstein Shapiro Morin & Oshinsky LLP
                                      2101 L Street, N.W.
                                      Washington, D.C.  20037
                                      Attention: Matthew S. Bergman, Esq.


         with a copy of all notices
         to any Borrower to:          Golden & Nelson, PLLC
                                      8285 Highglade Ct.
                                      Millersville, Maryland 21108
                                      Attention:  Hedy L. Nelson, Esq.

     12.4. Entire Agreement. This Agreement and the other Loan Documents
           ----------------
constitute the entire agreement of the parties with respect to the Loan and
shall continue in full force and effect for so long as any Borrower shall be
indebted hereunder or under any Note, and thereafter until the Administrative
Agent shall have actually received written notice of the termination hereof from
the Borrowers, all Letters of Credit shall have been cancelled or expired and
all Obligations incurred or contracted before receipt of such notice shall have
been fully paid.

     12.5. Relationship of the Parties. This Agreement provides for the
           ---------------------------
extension of financial accommodations by each Lender, in its capacity as lender,
to the Borrowers, in their capacity as borrowers, and for the payment of
interest and repayment of the Obligations by the Borrowers. Certain provisions
herein, such as those relating to compliance with the financial covenants,
delivery to the Administrative Agent and Lenders of financial statements, and
compliance with other affirmative and negative covenants are for the benefit of
the Administrative Agent and Lenders to protect the Lenders' interests in
assuring repayment of the

                                       64



Obligations. Nothing contained in this Agreement shall be construed as
permitting or obligating the Lenders or Agents to act as a financial or business
advisor or consultant to any Borrower, as permitting or obligating the Lenders
or Agents to control any Borrower or to conduct any Borrower's operations, as
creating any fiduciary obligation on the part of any Lender or Agent to any
Borrower, or as creating any joint venture, agency or other relationship between
the parties other than as explicitly and specifically stated in this Agreement.
Each Borrower acknowledges that it has had the opportunity to obtain the advice
of experienced counsel of its own choosing in connection with the negotiation
and execution of this Agreement and to obtain the advice of such counsel with
respect to all matters contained herein, including, without limitation, the
provision in this Agreement for waiver of trial by jury. Each Borrower further
acknowledges that it is experienced with respect to financial and credit matters
and has made its own independent decision to request the Obligations and execute
and deliver this Agreement.

     12.6. Waiver of Jury Trial. Each Borrower hereby (a) covenants and agrees
           --------------------
not to elect a trial by jury of any issue triable by a jury, and (b) waives any
right to trial by jury fully to the extent that any such right shall now or
hereafter exist. This waiver of right to trial by jury is separately given by
each Borrower, knowingly and voluntarily, and this waiver is intended to
encompass individually each instance and each issue as to which the right to a
jury trial would otherwise accrue. The Administrative Agent is hereby authorized
and requested to submit this Agreement to any court having jurisdiction over the
subject matter and the parties hereto, so as to serve as conclusive evidence of
each Borrower's herein contained waiver of the right to jury trial. Further,
each Borrower hereby certifies that no representative or agent of the Agents or
any Lender (including the Agents' counsel) has represented, expressly or
otherwise, to the undersigned that the Agents or Lenders will not seek to
enforce this provision waiving the right to a trial by jury.

     12.7. Submission to Jurisdiction; Service of Process; Venue. Any judicial
           -----------------------------------------------------
proceeding brought against any Borrower with respect to this Agreement or any
other Loan Document may be brought in any court of competent jurisdiction in the
Commonwealth of Virginia, and by execution and delivery of this Agreement, each
Borrower accepts for itself and in connection with its properties, generally and
unconditionally, the non-exclusive jurisdiction of the aforesaid court, and
irrevocably agrees to be bound by any judgment rendered by such court in
connection with this Agreement. Each Borrower irrevocably designates and
appoints Jeffrey S. Brown, Esq., whose address is 12015 Lee Jackson Highway,
Eighth Floor, Fairfax, Virginia 22033, as its agent to receive on its behalf
service of all process in any such proceeding in any court in the Commonwealth
of Virginia, such service being hereby acknowledged by each Borrower to be
effective and binding on it in every respect. A copy of any such process so
served shall be mailed by registered or certified mail to the Borrower at the
address to which notices are to be addressed in accordance with this Agreement,
except that any failure to mail such copy shall not affect the validity of
service of process. Each Borrower shall at all times maintain an agent for
service of process pursuant to this provision. If any Borrower fails to appoint
such an agent, or if such agent refuses to accept service, such Borrower hereby
agrees that service upon it by mail shall constitute sufficient notice. Nothing
herein shall affect the right to serve process in any other manner permitted by
law or shall limit the right of the Administrative Agent or Lenders to bring
proceedings against any Borrower in the courts of any other jurisdiction.

                                       65



     12.8.  Changes in Capital Requirements. If after the date of this Agreement
            -------------------------------
the Administrative Agent shall determine that the adoption of any applicable
law, rule or regulation regarding capital adequacy, or any change therein, or
any change in the interpretation or administration thereof, or compliance by the
Lenders with any request or directive regarding capital adequacy of any
authority, central bank or comparable agency, which adoption, change or
compliance is applicable to all banks generally or to banks similar in size, has
or would have the effect of reducing the rate of return on the Lenders' capital
as a consequence of the Lenders' obligations hereunder to a level below that
which the Lenders could have achieved but for such adoption, change or
compliance (taking into consideration the Administrative Agent's policies with
respect to capital adequacy), then, after sixty (60) days prior notice given by
the Administrative Agent to the Borrowers, the interest rate on the Notes shall
be increased to a rate which shall retain the Lenders' original rate of return
on the Lenders' capital.

     12.9.  Captions. The paragraph headings of this Agreement are for
            --------
convenience of reference only, and in no way define, limit or describe the scope
of this Agreement or the intent of any provision hereof.

     12.10. Modification and Waiver. Neither this Agreement nor any term,
            ------------------------
condition, covenant or agreement hereof may be changed, waived, discharged or
terminated orally, but that may be accomplished only by an instrument in writing
signed by the party against whom enforcement of the change, waiver, discharge or
termination is sought.

     12.11. Transferability.
            ---------------

            (a) No Borrower shall assign any of its rights, interests or
Obligations under this Agreement.

            (b) No Lender shall assign its interests under this Agreement to
any person or entity, without the prior written consent of both Citizens Bank
and the Borrowers; provided that (i) the Borrowers' consent shall not be
required for assignments from one Lender to another Lender or at any time during
which an Event of Default shall have occurred and be continuing; and (ii) the
Borrowers' consent shall not be unreasonably withheld or delayed. Subject to
obtaining such consent, any Lender may assign its interest, in the ordinary
course of its commercial banking business, at any time, or sell participations
in some but not all of its rights and obligations under this Agreement and the
other Loan Documents, provided that (a) the purchaser of any such interest is a
commercial bank (a "Participating Lender") or Eligible Assignee, in either case
whose total assets exceed Five Hundred Million and No/100 Dollars
($500,000,000.00); (b) at least thirty (30) days' prior written notice of such
sale or assignment, which notice must identify the Participating Lender and/or
Eligible Assignee, shall have been issued by such transferring Lender to the
Administrative Agent and the Borrowers; (c) the dollar equivalent of the
Percentage of the transferring Lender being assigned equals or exceeds Five
Million and No/100 Dollars ($5,000,000.00); (d) the Administrative Agent shall
have received a duly executed Assignment and Acceptance Agreement, in the form
attached as Exhibit 10 hereto; and (e) if the proposed assignee of the
transferring Lender is not an affiliate of the transferring Lender, an
assignment fee in the amount of Three Thousand Five Hundred and No/100 Dollars
$3,500.00) shall have been paid to the Administrative Agent to reimburse the
Administrative Agent for costs and expenses incurred in connection with the
assignment.

                                       66



          12.12. Governing Law; Binding Effect. This Agreement shall be governed
                 -----------------------------
by the laws of the Commonwealth of Virginia and be binding upon each Borrower
and inure to the benefit of the parties hereto and their respective successors
and assigns.

          12.13. Gender; Number. As used herein, the singular number shall
                 --------------
include the plural, the plural the singular and the use of the masculine,
feminine or neuter gender shall include all genders, as the context may require.

          12.14. Joint and Several Liability. Each Borrower shall be jointly and
                 ---------------------------
severally liable for the payment and performance of all obligations and
liabilities hereunder.

          12.15. Materiality. Unless the context clearly indicates to the
                 -----------
contrary, determinations regarding the materiality of any act, event, condition
or circumstance shall be in the reasonable judgment of the Administrative Agent.

          12.16. Reliance on the Administrative Agent. Each Borrower shall be
                 ------------------------------------
entitled to assume that any and all consents, approvals or notices issued or
granted by the Administrative Agent pursuant to the terms and provisions of this
Agreement were, to the extent necessary, authorized by the Required Lenders or
all of the Lenders, as applicable.

          12.17. Counterparts. This Agreement may be executed in any number of
                 ------------
counterparts, all of which together shall constitute one and the same document.

                  [Remainder of Page Intentionally Left Blank]

                                       67



          IN WITNESS WHEREOF, this Agreement has been signed, sealed and
delivered as of the date and year first above written.

WITNESS:
[Corporate Seal]                           MANTECH INTERNATIONAL
                                           CORPORATION, a New Jersey
                                           corporation

By:     _______________________            By:     _________________________
Name:   Hedy L.Nelson                      Name:   Matthew P. Galaski
                                           Title:  Vice President

                                           MANTECH INTERNATIONAL CORPORATION,
                                                a Delaware corporation
                                           MANTECH ADVANCED SYSTEMS
                                                INTERNATIONAL, INC., a Virginia
                                                corporation
                                           MANTECH SYSTEMS ENGINEERING
                                                CORPORATION, a Virginia
                                                corporation
                                           NSI TECHNOLOGY SERVICES CORPORATION,
                                                a California corporation
                                           MANTECH SYSTEMS CORPORATION, a New
                                                Jersey corporation
                                           MANTECH SOLUTIONS CORPORATION, a
                                                Virginia corporation
                                           MANTECH ENVIRONMENTAL TECHNOLOGY,
                                                INC., a Virginia corporation
                                           MANTECH SUPPORT TECHNOLOGY, INC.,
                                                a Virginia corporation
                                           MANTECH AUSTRALIA INTERNATIONAL,
                                                INC., a Virginia corporation
                                                formerly known as ManTech
                                                Computer Company, Inc.
                                           FIELD SUPPORT SERVICES MuHENDISLIK
                                                LIMITED SIRKETI, a corporation
                                                organized and existing under the
                                                laws of Turkey
                                           MANTECH TELECOMMUNICATIONS AND
                                                INFORMATION SYSTEMS CORPORATION,
                                                a Delaware corporation formerly
                                                known as ManTech Strategic
                                                Associates, Ltd.
WITNESS:                                   TECHNOLOGY MANAGEMENT CORPORATION, a
                                                Virginia corporation

By:     _______________________            By:      _________________________
Name:   Hedy L. Nelson                     Name:    Matthew P. Galaski
                                           Title:   Vice President

                                       68


                                           SCIENCE ENGINEERING & ANALYSIS,
                                                INCORPORATED, a Virginia
                                                corporation
                                           MANTECH ENVIRONMENTAL RESEARCH
                                                SERVICES CORP., a Virginia
                                                corporation
                                           NSI ENVIRONMENTAL SOLUTIONS, INC., a
                                                Virginia corporation
                                           MANTECH ENVIRONMENTAL CORPORATION, a
                                                Virginia corporation
                                           MANTECH SYSTEMS SOLUTIONS
                                                CORPORATION, a Virginia
                                                corporation formerly known as
                                                Tidewater Consultants, Inc.
                                           MANTECH TEST SYSTEMS, INC., a
                                                Virginia corporation
                                           MANTECH SOLUTIONS & TECHNOLOGIES
                                                CORPORATION, a Virginia
                                                corporation formerly known as
                                                ManTech Systems Integration
                                                Corporation
                                           MANTECH U.K. SYSTEMS CORPORATION,
                                                a Virginia corporation
                                           REDESMUNDIAL, S.A. , a corporation
                                                organized and existing under the
                                                laws of the Republic of Panama
                                                formerly known as ManTech
                                                International Panama, Inc.
                                           MANTECH CHINA SYSTEMS CORPORATION, a
                                                Virginia corporation
                                           MANTECH GERMANY SYSTEMS CORPORATION,
                                                a Virginia corporation
                                           MANTECH ADVANCED DEVELOPMENT GROUP,
                                                INC., a California corporation
                                           MANTECH ENTERPRISE SOLUTIONS, INC.,
                                                a Virginia corporation
WITNESS:                                   VOBIX CORPORATION, a Virginia
                                                corporation
                                           MANTECH SECURITY TECHNOLOGIES
                                                CORPORATION, a Virginia
                                                corporation

By:      _______________________           By:      _________________________
Name:    Hedy L. Nelson                    Name:    Matthew P. Galaski
                                           Title:   Vice President

                                       69


                                           MANTECH DATABASE SERVICES
                                                EUROPE LIMITED, a United Kingdom
                                                corporation
                                           MANTECH ADVANCED RECOGNITION
                                                LIMITED, a private company
                                                registered in England under the
                                                number 885326 formerly known as
                                                Advanced Recognition Limited
WITNESS:                                   MASI U.K. LIMITED, a corporation
                                                organized and existing under the
                                                laws of the United Kingdom

By:      _______________________           By:      _________________________
Name:    Hedy L. Nelson                    Name:    Matthew P. Galaski
                                           Title:   Attorney-in-Fact

                                             LENDER(S):
                                             ---------

                                             CITIZENS BANK OF PENNSYLVANIA, a
                                             Pennsylvania state chartered bank

                                             By:      _________________________
                                             Name:    _________________________
                                             Title:   _________________________

                                             PNC BANK, NATIONAL ASSOCIATION, a
                                             national banking association

                                             By:      _________________________
                                             Name:    _________________________
                                             Title:   _________________________

                                             BRANCH BANKING AND TRUST COMPANY
                                             OF VIRGINIA, a Virginia banking
                                             corporation

                                             By:      _________________________
                                             Name:    _________________________
                                             Title:   _________________________

                                             CHEVY CHASE BANK, F.S.B., a federal
                                             savings bank

                                             By:      _________________________
                                             Name:    _________________________
                                             Title:   _________________________

                                       70


                                             ADMINISTRATIVE AGENT:
                                             --------------------

                                             CITIZENS BANK OF PENNSYLVANIA, a
                                             Pennsylvania state chartered bank


                                             By:      _________________________
                                             Name:    _________________________
                                             Title:   _________________________


                                             DOCUMENTATION AGENT:

                                             PNC BANK, NATIONAL ASSOCIATION, a
                                             national banking association

                                             By:      _________________________
                                             Name:    _________________________
                                             Title:   _________________________


                                       71



                                    EXHIBIT 1
                                    ---------

                      REQUEST FOR ADVANCE AND CERTIFICATION
                        Facility A - $65,000,000 Revolver

 Citizens Bank of Pennsylvania, 8521 Leesburg Pike, Suite 405, Vienna, Virginia
                                     22182

                               REQUEST FOR ADVANCE
                               -------------------


     The undersigned, MANTECH INTERNATIONAL CORPORATION, a New Jersey
corporation ("ManTech"), for itself and as attorney-in-fact for and on behalf of
each Borrower (hereinafter defined) under that certain Business Loan and
Security Agreement dated as of December 17, 2001 (as amended or modified from
time to time, the "Loan Agreement") by and among (i) Citizens Bank of
Pennsylvania, a Pennsylvania state chartered bank, acting in its individual
capacity as a Lender, as the Swing Line Lender and as the Administrative Agent
for the Lenders, (ii) PNC Bank, National Association, a national banking
association, acting in its individual capacity as a Lender and as the
Documentation Agent for the Lenders, (iii) Branch Banking and Trust Company of
Virginia, a Virginia banking corporation, acting in its individual capacity as a
Lender, Chevy Chase Bank, F.S.B., a federal savings bank, acting in its
individual capacity as a Lender, and other Lender parties thereto from time to
time and/or replacements thereof, and (iv) ManTech, certain subsidiaries of
ManTech and any person or entity who has become a Borrower party thereto
pursuant to the Loan Agreement (collectively, the "Borrower"), hereby requests
that a Loan advance under Facility A be made to the Borrowers pursuant to
Section 1.4(a) of the Loan Agreement in the amount of
_______________________________________________________ and No/100 Dollars
($_____________.00). This Loan advance will be effective on __________________
and will be at the __ Base Rate option or the __ Libor Rate option (check one).
If the Libor Rate option is requested, it shall be effective for a ____ (select
1, 3 or 6) month period, commencing on ________________ (a Business Day not less
than two (2) Business Days nor more than five (5) Business Days from the date of
submission of this Request for Advance and Certification) and expiring on
___________ (not later than the Maturity Date). Capitalized terms used but not
defined herein shall have the meanings attributed to such terms in the Loan
Agreement.

                                  CERTIFICATION
                                  -------------

     The undersigned certifies to the Administrative Agent, on behalf of each of
the Borrowers and for the benefit of the Lenders, that (a) all of the
representations and warranties of the Borrowers contained in the Loan Agreement
are true and correct as of the date hereof, unless the Borrowers are unable to
remake and redate any such representation or warranty, have previously disclosed
the same to the Administrative Agent and the Lenders in writing, and such
inability does not constitute or give rise to an Event of Default; and (b) no
default or Event of Default exists under the Loan Agreement, and no act, event
or condition has occurred or exists which with the giving of notice or the
passage of time, or both, would constitute a default or Event of Default under
the Loan Agreement.

     IN WITNESS WHEREOF, the undersigned has executed and delivered this
certificate, this ___ day of __________, ______.

                            MANTECH INTERNATIONAL CORPORATION,
                            acting on its own behalf and as attorney-in-fact for
                            and on behalf of each Borrower

                            By:    _________________________________
                            Name:  _______________________________
                            Title:  _________________________________



                                  EXHIBIT 1(a)
                                  ------------

                       REQUEST FOR SWING LINE LOAN ADVANCE

      Citizens Bank of Pennsylvania, 8521 Leesburg Pike, Suite 405, Vienna,
                                 Virginia 22182

     The undersigned, MANTECH INTERNATIONAL CORPORATION, a New Jersey
corporation ("ManTech"), for itself and as attorney-in-fact for and on behalf of
each Borrower (hereinafter defined) under that certain Business Loan and
Security Agreement dated as of December 17, 2001 (as amended or modified from
time to time, the "Loan Agreement") by and among (i) Citizens Bank of
Pennsylvania, a Pennsylvania state chartered bank, acting in its individual
capacity as a Lender, as the Swing Line Lender and as the Administrative Agent
for the Lenders, (ii) PNC Bank, National Association, a national banking
association, acting in its individual capacity as a Lender and as the
Documentation Agent for the Lenders, (iii) Branch Banking and Trust Company of
Virginia, a Virginia banking corporation, acting in its individual capacity as a
Lender, Chevy Chase Bank, F.S.B., a federal savings bank, acting in its
individual capacity as a Lender, and other Lender parties thereto from time to
time and/or replacements thereof, and (iv) ManTech, certain subsidiaries of
ManTech and any person or entity who has become a Borrower party thereto
pursuant to the Loan Agreement (collectively, the "Borrower"), hereby requests
that a Swing Line Loan advance be made to the Borrowers pursuant to Section
1.4(a) of the Loan Agreement in the amount of
______________________________________ and No/100 Dollars ($_______________).
Capitalized terms used but not defined herein shall have the meanings attributed
to such terms in the Loan Agreement.

                                  CERTIFICATION
                                  -------------

     The undersigned certifies to the Administrative Agent, on behalf of each of
the Borrowers and for the benefit of the Lenders, that (a) all of the
representations and warranties of the Borrowers contained in the Loan Agreement
are true and correct as of the date hereof, unless the Borrowers are unable to
remake and redate any such representation or warranty, have previously disclosed
the same to the Administrative Agent and the Lenders in writing, and such
inability does not constitute or give rise to an Event of Default; and (b) no
default or Event of Default exists under the Loan Agreement, and no act, event
or condition has occurred or exists which with the giving of notice or the
passage of time, or both, would constitute a default or Event of Default under
the Loan Agreement.

     IN WITNESS WHEREOF, the undersigned has executed and delivered this
certificate, this ___ day of __________, ______.

                            MANTECH INTERNATIONAL CORPORATION,
                            acting on its own behalf and as attorney-in-fact for
                            and on behalf of each Borrower

                            By:    _________________________________
                            Name:  _______________________________
                            Title:  _________________________________

                                       2



                                    EXHIBIT 2
                                    ---------

                      LIBOR ELECTION FORM AND CERTIFICATION

 Citizens Bank of Pennsylvania, 8521 Leesburg Pike, Suite 405, Vienna, Virginia
                                      22182

     The undersigned, MANTECH INTERNATIONAL CORPORATION, a New Jersey
corporation ("ManTech"), for itself and as attorney-in-fact for and on behalf of
each Borrower (hereinafter defined) under that certain Business Loan and
Security Agreement dated as of December 17, 2001 (as amended or modified from
time to time, the "Loan Agreement"), by and among (i) Citizens Bank of
Pennsylvania, a Pennsylvania state chartered bank, acting in its capacity as a
Lender, as the Swing Line Lender and as Administrative Agent for the Lenders,
(ii) PNC Bank, National Association, a national banking association, acting in
its capacity as a Lender and as Documentation Agent for the Lenders, and (iii)
Branch Banking and Trust Company of Virginia, a Virginia banking corporation,
Chevy Chase Bank, F.S.B., a federal savings bank, and other Lender parties
thereto from time to time and/or replacements thereof, and (iv) ManTech, certain
subsidiaries of ManTech and any other entity who becomes a Borrower party
pursuant to the Loan Agreement (each, a "Borrower" and collectively, the
"Borrower"), hereby requests that the sum of
______________________________________________________ and No/100 Dollars
($____________________.00), advanced and outstanding under ___ Facility A / ___
Facility B (check one), bear interest on a LIBOR basis. This LIBOR basis
election shall be effective for a ____ (select 1, 3 or 6) month period,
commencing on _____________ (a Business Day not less than two (2) Business Days
nor more than five (5) Business Days from the date of submission of this LIBOR
Election Form and Certification), and expiring on _______________ (not later
than the Maturity Date). Capitalized terms used but not defined herein shall
have the meaning attributable to such terms in the Loan Agreement.

                                  CERTIFICATION
                                  -------------

     The undersigned certifies to the Administrative Agent, on behalf of each of
the Borrowers and for the benefit of the Lenders, that (a) all of the
representations and warranties of the Borrowers contained in the Loan Agreement
are true and correct as of the date hereof, unless the Borrowers are unable to
remake and redate any such representation or warranty, have previously disclosed
the same to the Administrative Agent and the Lenders in writing, and such
inability does not constitute or give rise to an Event of Default; and (b) no
default or Event of Default exists under the Loan Agreement, and no act, event
or condition has occurred or exists which with the giving of notice or the
passage of time, or both, would constitute a default or Event of Default under
the Loan Agreement.

     IN WITNESS WHEREOF, the undersigned has executed and delivered this
certificate, this ___ day of ____________, _______.

                            MANTECH INTERNATIONAL CORPORATION,
                            acting on its own behalf and as attorney-in-fact for
                            and on behalf of each Borrower

                            By:________________________________
                            Name: ____________________________
                            Title: _____________________________



                                    EXHIBIT 3
                                    ---------

               LIBOR INTEREST ELECTION PROCEDURE AND REQUIREMENTS

The Borrowers' right to obtain LIBOR based interest shall be subject to the
following conditions:

     1.   Continuation and Conversion of LIBOR Elections. By delivering a LIBOR
          ----------------------------------------------
Election Form and Certification to the Administrative Agent on or before 10:00
a.m., New York time, on a Business Day, the Borrowers may from time to time
irrevocably elect, on not less than two (2) Business Days nor more than five (5)
Business Days' notice, that all, or any portion in an aggregate minimum amount
of One Hundred Thousand and No/100 Dollars ($100,000.00) and integral multiples
of One Hundred Thousand and No/100 Dollars ($100,000.00), of any LIBOR Rate Loan
be converted on the last day of an Interest Period into a LIBOR Rate Loan with a
different Interest Period, or continued on the last day of an Interest Period as
a LIBOR Rate Loan with a similar Interest Period, provided, however, that no
                                                  --------  -------
portion of the outstanding principal amount of any LIBOR Rate Loans may be
converted to, or continued as, LIBOR Rate Loans when any Event of Default has
occurred and is continuing or when any act, event or condition exists or has
occurred which with notice or the lapse of time, or both, would constitute an
Event of Default, and no portion of the outstanding principal amount of any
LIBOR Rate Loans may be converted to, LIBOR Rate Loans of a different duration
if such LIBOR Rate Loans relate to any Hedging Obligations. In the absence of
delivery of a LIBOR Election Form and Certification with respect to any LIBOR
Rate Loan at least two (2) Business Days before the last day of the then current
Interest Period with respect thereto, such LIBOR Rate Loan shall, on such last
day, automatically convert to a Loan that accrues interest on a Base Rate basis.
No more than five (5) different LIBOR funding segments may be outstanding at any
time.

     2.   Repayments, Prepayments and Interest.
          ------------------------------------

               (a)  Repayments, Continuations and Conversions. LIBOR Rate Loans
                    -----------------------------------------
shall mature and become payable in full on the last day of the Interest Period
relating to such LIBOR Rate Loan. Upon maturity, a LIBOR Rate Loan may be
continued for an additional Interest Period or may be converted to a loan that
accrues interest on a Base Rate basis.

               (b)  Voluntary Prepayment of LIBOR Rate Loans. LIBOR Rate Loans
                    ----------------------------------------
may be prepaid upon the terms and conditions set forth herein and in the Notes.
For LIBOR Rate Loans in connection with which the Borrowers have or may incur
Hedging Obligations, additional obligations may be associated with prepayment,
in accordance with the terms and conditions of the applicable Hedging Contracts.
The Borrowers shall give the Administrative Agent, no later than 10:00 a.m., New
York City time, at least four (4) Business Days notice of any proposed
prepayment of any LIBOR Rate Loans, specifying the proposed date of payment of
such LIBOR Rate Loans, and the principal amount to be paid. Each partial
prepayment of the principal amount of LIBOR Rate Loans shall be in an integral
multiple of One Hundred Thousand and No/100 Dollars ($100,000.00) and be
accompanied by the payment of all charges outstanding on such LIBOR Rate Loans
and of all accrued interest on the principal repaid to the date of payment. The
Borrowers acknowledge that prepayment or acceleration of a LIBOR Rate Loan
during an Interest Period shall result in the Administrative Agent and/or the
Lenders (as applicable) incurring additional costs, expenses and/or liabilities
and that it is extremely difficult and impractical to ascertain the extent of
such costs, expenses and/or liabilities. Therefore, all full or partial
prepayments of LIBOR Rate Loans shall be accompanied by, and the Borrowers
hereby promise to pay, on each date a LIBOR Rate Loan is prepaid or the date all
sums payable hereunder become due and payable, by acceleration or otherwise, in
addition to all other sums then owing, an amount ("LIBOR Rate Loan Prepayment
Fee") determined by the Administrative Agent pursuant to the following formula:

                    (i)    the then current rate for United States Treasury
securities (bills on a discounted basis shall be converted to a bond equivalent)
with a maturity date closest to the end of the Interest Period as to which
prepayment is made, subtracted from
                    ---------------




                    (ii)   the LIBOR Lending Rate, plus the Applicable Libor
Interest Rate Margin applicable to the LIBOR Rate Loan being prepaid.

     If the result of the foregoing calculation is zero or a negative number,
then there shall be no LIBOR Rate Loan Prepayment Fee. If the result of the
foregoing calculation is a positive number, then the resulting percentage shall
be multiplied by the amount of the LIBOR Rate Loan being prepaid. This resulting
amount shall be divided by 360 and multiplied by the number of days remaining in
the Interest Period as to which the prepayment is being made. Said amount shall
be reduced to present value calculated by using the referenced United States
Treasury securities rate and the number of days remaining on the Interest Period
for the LIBOR Rate Loan being prepaid.

     The resulting amount of these calculations shall be the LIBOR Rate Loan
Prepayment Fee.

               (c)  Interest Provisions. Interest on the outstanding principal
                    -------------------
amount of each LIBOR Rate Loan shall accrue during the Interest Period
applicable thereto at a rate equal to the sum of the LIBOR Lending Rate for such
Interest Period plus the Applicable Libor Interest Rate Margin thereto and be
payable on each Interest Payment Date.

     3.   Miscellaneous LIBOR Rate Loan Terms.
          -----------------------------------

               (a)  LIBOR Rate Lending Unlawful. If the Administrative Agent
                    ---------------------------
shall determine (which determination shall, upon notice thereof to the Borrowers
be conclusive and binding on the Borrowers) that the introduction of or any
change in or in the interpretation of any law, rule, regulation or guideline,
(whether or not having the force of law) makes it unlawful, or any central bank
or other governmental authority asserts that it is unlawful, for the
Administrative Agent or any Lender to make, continue or maintain any LIBOR Rate
Loan as, or to convert any loan into, a LIBOR Rate Loan of a certain duration,
the obligations of the Administrative Agent and/or the Lenders to make,
continue, maintain or convert into any such LIBOR Rate Loans shall, upon such
determination, forthwith be suspended until the Administrative Agent shall
notify the Borrowers that the circumstances causing such suspension no longer
exist, and all LIBOR Rate Loans of such type shall automatically convert into
Loans that accrue interest on a Base Rate basis at the end of the then current
Interest Periods with respect thereto or sooner, if required by such law or
assertion.

               (b)  Substitute Rate. If the Administrative Agent shall have
                    ---------------
determined that:

                    (i)   US dollar deposits in the relevant amount and for the
relevant Interest Period are not available to the Administrative Agent and/or
the Lenders in the London interbank market; or

                    (ii)  by reason of circumstances affecting the
Administrative Agent and/or the Lenders in the London interbank, adequate means
do not exist for ascertaining the LIBOR Rate applicable hereunder to LIBOR Rate
Loans of any duration, or

                    (iii) LIBOR no longer adequately reflects the Administrative
Agent's or any Lender's cost of funding Loans,

then, upon notice from the Administrative Agent to the Borrowers, the
obligations of the Administrative Agent and the Lenders set forth in the Loan
Agreement to make or continue any Loans as, or to convert any loans into, LIBOR
Rate Loans of such duration shall forthwith be suspended until the
Administrative Agent shall notify the Borrowers that the circumstances causing
such suspension no longer exist.

               (c)  Indemnities. In addition to the LIBOR Rate Loan Prepayment
                    -----------
Fee, the Borrowers jointly and severally agree to reimburse the Administrative
Agent and the Lenders (without duplication) for any increase in the cost to the
Administrative Agent and/or the Lenders (as applicable), or reduction in the
amount of any sum receivable by the Administrative Agent and/or the Lenders (as
applicable), in respect, or as a result of:

                                       2



                   (i)   any conversion or repayment or prepayment of the
principal amount of any LIBOR Rate Loans on a date other than the scheduled last
day of the Interest Period applicable thereto;

                   (ii)  any loans not being made as LIBOR Rate Loans in
accordance with the borrowing request thereof;

                   (iii) any LIBOR Rate Loans not being continued as, or
converted into, LIBOR Rate Loans in accordance with the applicable LIBOR
Election Notice and Certification thereof, or

                   (iv)  any costs associated with marking to market any Hedging
Obligations that (in the reasonable determination of the Administrative Agent)
are required to be terminated as a result of any conversion, repayment or
prepayment of the principal amount of any LIBOR Rate Loan on a date other than
the scheduled last day of the Interest Period applicable thereto;

          The Administrative Agent shall promptly notify the Borrowers in
writing of the occurrence of any such event, such notice to state, in reasonable
detail, the reasons therefor and the additional amount required fully to
compensate the Administrative Agent and/or the Lenders (as applicable) for such
increased cost or reduced amount. Such additional amounts shall be payable by
the Borrowers to the Administrative Agent for its own benefit or for the benefit
of the Lenders (as the case may be) within five (5) days of its receipt of such
notice, and such notice shall, in the absence of manifest error, be conclusive
and binding on the Borrowers. The Borrowers understand, agree and acknowledge
the following: (i) neither the Administrative Agent nor any Lender has any
obligation to purchase, sell and/or match funds in connection with the use of
LIBOR Rate as a basis for calculating the rate of interest on a LIBOR Rate Loan,
(ii) the LIBOR Rate may be used merely as a reference in determining such rate,
and (iii) the Borrowers have accepted the LIBOR Rate as a reasonable and fair
basis for calculating such rate, the LIBOR Rate Prepayment Fee, and other
funding losses incurred by the Administrative Agent and/or the Lenders (as the
case may be). The Borrowers further agree to pay the LIBOR Rate Prepayment Fee
and other funding losses, if any, whether or not the Administrative Agent and/or
the Lenders elect to purchase, sell and/or match funds.

               (d) Increased Costs. If, on or after the date hereof, the
                   ---------------
adoption of any applicable law, rule or regulation or guideline (whether or not
having the force of law), or any change therein, or any change in the
interpretation or administration thereof by any governmental authority, central
bank or comparable agency charged with the interpretation or administration
thereof, or compliance by the Administrative Agent or any Lender with any
request or directive (whether or not having the force of law) of any such
authority, central bank or comparable agency shall:

                   (i)   subject the Administrative Agent or any Lender to any
tax, duty or other charge with respect to its LIBOR Rate Loans or its obligation
to make LIBOR Rate Loans, or shall change the basis of taxation of payments to
the Administrative Agent or any Lender of the principal of or interest on its
LIBOR Rate Loans or any other amounts due under this Agreement in respect of its
LIBOR Rate Loans or its obligation to make LIBOR Rate Loans (except for the
introduction of, or change in the rate of, tax on the overall net income of the
Administrative Agent or any Lender (as applicable) or franchise taxes, imposed
by the jurisdiction (or any political subdivision or taxing authority thereof)
under the laws of which the Administrative Agent or such Lender is organized or
in which the Administrative Agent's or such Lender's principal executive office
is located); or

                   (ii)  impose, modify or deem applicable any reserve, special
deposit or similar requirement (including, without limitation, any such
requirement imposed by the Board of Governors of the Federal Reserve System of
the United States) against assets of, deposits with or for the account of, or
credit extended by, the Administrative Agent or any Lender or shall impose on
the Administrative Agent or any Lender or on the London interbank market any
other condition affecting its LIBOR Rate Loans or its obligation to make LIBOR
Rate Loans;

and the result of any of the foregoing is to increase the cost to the
Administrative Agent or such Lender of making or maintaining any LIBOR Rate
Loan, or to reduce the amount of any sum received or receivable by the
Administrative Agent or such Lender under this Agreement with respect thereto,
by an amount deemed by the

                                       3



Administrative Agent to be material, then, within fifteen (15) days after demand
by the Administrative Agent, the Borrowers shall pay to the Administrative
Agent, for its own account or for the account of such Lender (as the case may
be), such additional amount or amounts as will compensate the Administrative
Agent or such Lender for such increased cost or reduction.

               (e) Increased Capital Costs. If any change in, or the
                   -----------------------
introduction, adoption, effectiveness, interpretation, reinterpretation or
phase-in of, any law or regulation, directive, guideline, decision or request
(whether or not having the force of law) of any court, central bank, regulator
or other governmental authority affects or would affect the amount of capital
required or expected to be maintained by the Administrative Agent or any Lender,
or person controlling the Administrative Agent or any Lender, and the
Administrative Agent determines (in its sole and absolute discretion) that the
rate of return on its, the Lender's or such controlling person's capital as a
consequence of its commitments or the loans made by the Administrative Agent or
such Lender is reduced to a level below that which the Administrative Agent,
such Lender or such controlling person could have achieved but for the
occurrence of any such circumstance, then, in any such case upon notice from
time to time by the Administrative Agent to the Borrowers, the Borrowers shall
immediately pay directly to the Administrative Agent, for its own account or for
the account of such Lender (as the case may be), additional amounts sufficient
to compensate the Administrative Agent, such Lender or such controlling person
for such reduction in rate of return. A statement of the Administrative Agent as
to any such additional amount or amounts (including calculations thereof in
reasonable detail) shall, in the absence of manifest error, be conclusive and
binding on the Borrowers. In determining such amount, the Administrative Agent
may use any method of averaging and attribution that it (in its sole and
absolute discretion) shall deem applicable.

               (f) Taxes. All payments by the Borrowers of principal of, and
                   -----
interest on, the LIBOR Rate Loans and all other amounts payable hereunder shall
be made free and clear of and without deduction for any present or future
income, excise, stamp or franchise taxes and other taxes, fees, duties,
withholdings or other charges of any nature whatsoever imposed by any taxing
authority, but excluding franchise taxes and taxes imposed on or measured by the
Administrative Agent's and/or any Lender's net income or receipts (such
non-excluded items being called "Taxes"). In the event that any withholding or
deduction from any payment to be made by the Borrowers hereunder is required in
respect of any Taxes pursuant to any applicable law, rule or regulation, then
the Borrowers will

                   (i)   pay directly to the relevant authority the full amount
required to be so withheld or deducted;

                   (ii)  promptly forward to the Administrative Agent an
official receipt or other documentation satisfactory to the Administrative Agent
evidencing such payment to such authority; and

                   (iii) pay to the Administrative Agent, for its own account or
for the account of such Lender (as the case may be), such additional amount or
amounts as is necessary to ensure that the net amount actually received by the
Administrative Agent, for its own account or for the account of such Lender (as
the case may be), will equal the full amount the Administrative Agent or such
Lender (as applicable) would have received had no such withholding or deduction
been required.

Moreover, if any Taxes are directly asserted against the Administrative Agent or
any Lender with respect to any payment received by the Administrative Agent or
any Lender hereunder, the Administrative Agent or such Lender may pay such Taxes
and the Borrowers will promptly pay such additional amount (including any
penalties, interest or expenses) as is necessary in order that the net amount
received by the Administrative Agent or such Lender (as the case may be) after
the payment of such Taxes (including any Taxes on such additional amount) shall
equal the amount the Administrative Agent or such Lender (as the case may be)
would have received had not such Taxes been asserted.

          If the Borrowers fail to pay any Taxes when due to the appropriate
taxing authority or fail to remit to the Administrative Agent the required
receipts or other required documentary evidence, the Borrowers shall

                                       4



indemnify the Administrative Agent and the Lenders for any incremental Taxes,
interest or penalties that may become payable by the Administrative Agent or any
Lender as a result of any such failure.

                (g) Certain Required Information. If a Request for Advance and
                    ----------------------------
Certification or LIBOR Election Form and Certification fails to specify an
Applicable Interest Rate and/or an Interest Period, or if, after having selected
an Applicable Interest Rate and/or an Interest Period, the Borrowers fail or are
otherwise not entitled under the provisions of this Agreement to elect or
continue any such selection (as applicable), the Borrowers shall be deemed to
have selected the Base Rate as the Applicable Interest Rate until such time as
the Borrowers are entitled to and have selected a different Applicable Interest
Rate and specified Interest Period in accordance with the provisions of this
Agreement. The Lenders shall not be obligated to act with respect to the
provisions of this Exhibit unless the Administrative Agent shall have received a
Request for Advance and Certification or LIBOR Election Form and Certification,
as applicable, from the Borrowers specifying the following information:

                        (i)   the amount of the advance subject to the
                              Applicable Interest Rate election;

                        (ii)  the length of the Interest Period; and

                        (iii) the date on which such election is requested to be
                              effective.

Each Request for Advance and Certification or LIBOR Election Form and
Certification, as applicable, shall be made by the Borrowers in accordance with
the provisions of this Exhibit, the Notes and Section 1.4 of the Loan Agreement.

          Capitalized terms used and not otherwise defined in this Exhibit 3
shall have the meanings attributed to such terms in the Loan Agreement.

                                       5



                                    EXHIBIT 4
                                    ---------

                     BORROWING BASE/NON-DEFAULT CERTIFICATE
      Citizens Bank of Pennsylvania, 8521 Leesburg Pike, Suite 405, Vienna,
                                 Virginia 22182


     Pursuant to the terms and conditions of a certain Business Loan and
Security Agreement dated as of December 17, 2001 (as amended or modified from
time to time, the "Loan Agreement") made by and among (i) Citizens Bank of
Pennsylvania, a Pennsylvania state chartered bank, acting in its individual
capacity as a Lender, as the Swing Line Lender and as Administrative Agent for
the Lenders, (ii) PNC Bank, National Association, a national banking
association, acting in its capacity as a Lender and as Documentation Agent for
the Lenders, (iii) Branch Banking and Trust Company of Virginia, a Virginia
banking corporation, Chevy Chase Bank, F.S.B., a federal savings bank, and other
Lender parties thereto from time to time and/or replacements thereof, and (iv)
ManTech International Corporation, a New Jersey corporation ("ManTech"), certain
subsidiaries of ManTech and any person or entity who has become a borrower party
thereto pursuant to the Loan Agreement (collectively, the "Borrower"), ManTech,
for itself and as attorney-in-fact for and on behalf of each Borrower, hereby
delivers this Borrowing Base/Non-Default Certificate to the Administrative Agent
to induce the Lenders to make Loan advances to the Borrower pursuant to the Loan
Agreement. Capitalized terms used but not defined herein shall have the meanings
attributed to such terms in the Loan Agreement.

Borrower:         ManTech International Corporation and its Subsidiaries
Period Ending:    __________________
Number:           __________________

The Maximum Borrowing Base is computed as follows:

                                                                                           
1.  Value of 90% of Eligible Billed Government Accounts Receivable from Schedule A            $____________
2.  Value of 85% of Eligible Billed Commercial Accounts Receivable from Schedule B            $____________
3.  Value of 50% of Eligible Unbilled Government Accounts Receivable from Schedule C (not
    to exceed $10,000,000)                                                                    $____________
4.  The Dollar Equivalent Amount of the Value of 60% of Eligible ARL Accounts Receivable
    from Schedule D (not to exceed $1,000,000)                                                $____________
5.  The Borrowing Base (The sum of Lines 1, 2, 3 and 4)                                       $____________
6.  Facility A Commitment Amount                                                              $65,000,000**
                                                                                              -------------
7.  Facility A Loan Balance (as of the date of this Certificate)                              $____________
8.  Aggregate Amount of Swing Line Outstandings                                               $____________
9.  Aggregate Face Amount of Outstanding Letters of Credit                                    $____________
10. The Dollar Equivalent Amount (as of the date of this Certificate) of the Duty
    Deferment Bond                                                                            $____________
11. Availability (The lesser of lines 5 or 6, minus the sum of lines 7,8, 9 and 10)           $____________



** Subject to reduction pursuant to Section 1.5 of the Loan Agreement.

The undersigned certifies to the Administrative Agent, on behalf of each of the
Borrowers and for the benefit of the Lenders, that (a) this report is true and
correct in all respects, is in accordance with the books and records of the
Borrowers and has been prepared in accordance with the terms of the Loan
Agreement; (b) all of the representations and warranties of the Borrowers
contained in the Loan Agreement are true and correct as of the date hereof,
unless the Borrowers are unable to remake and redate any such representation or
warranty, have previously disclosed same to the Administrative Agent



and the Lenders in writing, and such inability does not constitute or give rise
to an Event of Default; and (c) except as previously disclosed to the
Administrative Agent and the Lenders in writing, no default or Event of Default
exists under the Loan Agreement, and no act, event or condition has occurred or
exists which, with the giving of notice or the passage of time or both, would
constitute a default or Event of Default under the Loan Agreement.

IN WITNESS WHEREOF, the undersigned has executed and delivered this certificate,
this _________ day of ________________, ______.


                                        MANTECH INTERNATIONAL  CORPORATION,
                                        acting on its own behalf and as
                                        attorney in-fact for and on behalf of
                                        each Borrower

                                        By: ________________________________
                                        Name: ______________________________
                                        Title: _____________________________



               {page 2 of Borrowing Base/Non-Default Certificate}

                                       2



                                    EXHIBIT 5
                                    ---------

              QUARTERLY COVENANT COMPLIANCE/NON-DEFAULT CERTIFICATE
     Citizens Bank of Pennsylvania, 8521 Leesburg Pike, Suite 405, Vienna,
                                 Virginia 22182

              The undersigned, MANTECH INTERNATIONAL CORPORATION, a New Jersey
corporation ("ManTech"), for itself and as attorney-in-fact for and on behalf of
each Borrower (hereinafter defined) under that certain Business Loan and
Security Agreement dated as of December 17, 2001 (as amended or modified from
time to time, the "Loan Agreement"), by and among (i) Citizens Bank of
Pennsylvania, a Pennsylvania state chartered bank, acting in its capacity as a
Lender, as the Swing Line Lender and as Administrative Agent for the Lenders,
(ii) PNC Bank, National Association, a national banking association, acting in
its capacity as a Lender and as Documentation Agent for the Lenders, and (iii)
Branch Banking and Trust Company of Virginia, a Virginia banking corporation,
Chevy Chase Bank, F.S.B., a federal savings bank, and other Lender parties
thereto from time to time and/or replacements thereof, and (iv) ManTech, certain
subsidiaries of ManTech and any other entity who becomes a Borrower party
pursuant to the Loan Agreement (each, a "Borrower" and collectively, the
"Borrower"), hereby delivers this Quarterly Covenant Compliance/Non-Default
Certificate ("Certificate") pursuant to Section 6.3 of the Loan Agreement.
Unless otherwise defined, capitalized terms used herein shall have the meanings
attributed to such terms in the Loan Agreement.

              The undersigned, on behalf of ManTech in its individual capacity
and as attorney-in-fact for and on behalf of each Borrower, hereby certifies and
warrants that:

         (a)  He or she is the ________________ of ManTech and that, as such, he
              or she is authorized to execute this certificate on behalf of
              ManTech and each Borrower.

         (b)  At no time during the period _____________ 1, ______ through
              _____________, _______ (the "Certificate Period") did an Event of
              Default exist, and at no time during the Certificate Period did
              any act or event occur or fail to occur which with notice, or the
              lapse of time, or both, would constitute an Event of Default. [If
              unable to provide the foregoing required certification, fully
              describe the reasons therefor and circumstances thereof on a
              schedule attached hereto.]

         (c)  The following represent true and accurate measures of the
              Borrowers' financial position (on a consolidated basis) as of the
              last day of the Certificate Period:

                    (i)    Total Debt to EBITDA Ratio: ____ to 1.0.

                    (ii)   Net Worth: $_________________.

                    (iii)  Fixed Charge Coverage Ratio: _____ to 1.0.

                    (iv)   EBITDA to Interest Expense Ratio:  ______ to 1.0.

                    (v)    The Borrower's aggregate annual (i.e., fiscal year)
                           capital expenditures to date are in the amount of
                           $_________________.

                    (vi)   The aggregate amount of loans and advances to, and
                           investments in, non-Borrower subsidiaries and
                           affiliates to date is $______________.

                    (vii)  The aggregate amount of loans or advances to
                           officers of the Borrowers is $____________.

                    (viii) The aggregate outstanding principal amount of
                           borrowings by Vobix is $_______________.



                       (ix) The aggregate outstanding principal amount of
                            borrowings by ARL is $_______________.

                       (x)  The Borrowers' annual (i.e., fiscal year) operating
                            lease payments to date are in the aggregate
                            amount of $_________________.

            A calculation sheet reflecting the above-computations is attached
hereto as Schedule 1.

            IN WITNESS WHEREOF, the undersigned has executed and delivered this
certificate, this ___ day of __________, ________.


                                MANTECH INTERNATIONAL CORPORATION, acting on its
                                own behalf and as attorney-in-fact for and on
                                behalf of each of the Borrowers

                                By: __________________________________
                                Name:________________________________
                                Title:_________________________________

        {page 2 of Quarterly Covenant Compliance/Non-Default Certificate}

                                       2



                                    EXHIBIT 6
                                    ---------

                            FORM OF JOINDER AGREEMENT
                            -------------------------

              Re:   Business Loan and Security Agreement dated  December 17,
                    2001 (as the same may be modified or amended from time to
                    time, the "Loan Agreement") by and among (i) Citizens Bank
                    of Pennsylvania, a Pennsylvania state chartered bank, acting
                    in its individual capacity as a Lender, as the Swing Line
                    Lender and as the Administrative Agent for the Lenders, (ii)
                    PNC Bank, National Association, a national banking
                    association, acting in its individual capacity as a Lender
                    and as the Documentation Agent for the Lenders, (iii) Branch
                    Banking and Trust Company of Virginia, a Virginia banking
                    corporation, Chevy Chase Bank, F.S.B., a federal savings
                    bank and any other Lender parties thereto from time to time
                    and/or replacements thereof, and (iv) ManTech International
                    Corporation, a New Jersey corporation ("ManTech"), certain
                    subsidiaries of ManTech and any person or entity who has
                    become a borrower party thereto pursuant to the Loan
                    Agreement.

              The undersigned hereby (i) agrees to become a "Borrower" under the
Loan Agreement; (ii) joins in, becomes a party to, and agrees to comply with and
be bound by the terms and conditions of the Loan Agreement and each and every
other Loan Document, to the same extent as if the undersigned were an original
signatory thereto; (iii) makes all of the representations and warranties set
forth in the Loan Agreement and each other Loan Document to which more than one
(1) Borrower is a party thereto; and (iv) grants to the Administrative Agent,
for the ratable benefit of the Lenders, a valid and enforceable security
interest in and to all of its assets constituting Collateral, free and clear of
all liens, claims and encumbrances (other than Permitted Liens and any other
liens expressly approved in writing by the Administrative Agent) subject to the
provisions of the Loan Agreement. The undersigned shall hereafter be jointly and
severally liable for the performance of any and all past, present and future
obligations of any Borrower in connection with any of the Notes, the Loan
Agreement and/or the other Loan Documents; it being understood and agreed that
any and all references in the Notes, the Loan Agreement and/or the other Loan
Documents to "the Borrower" shall mean the undersigned, individually and/or
collectively with all other Borrowers.

              The undersigned acknowledges that (i) the Lenders have agreed to
extend credit to it and the other Borrower(s) on an integrated basis for the
purposes set forth in the Loan Agreement; (ii) it is receiving direct and/or
indirect benefits from each such extension of credit; and (iii) the obligations
of the "Borrower" or "Borrowers" under the Loan Agreement are the joint and
several obligations of each Borrower.

              The undersigned hereby represents and warrants to the
Administrative Agent and the Lenders that, in accordance with the terms of the
Contribution Agreement, it has become a party



to the Contribution Agreement and that, except for the joining of the
undersigned thereto, the Contribution Agreement remains unmodified and in full
force and effect.

              The undersigned further represents and warrants to the
Administrative Agent and the Lenders that both prior to and after giving effect
to the transactions contemplated by the terms and provisions of this Joinder
Agreement, it (i) owned and owns property (including, without limitation,
contribution rights against the other Borrower(s), evidence of which, if
required by the Administrative Agent as a condition precedent to the
transactions contemplated hereby, must be in form and substance reasonably
satisfactory to the Administrative Agent) whose fair salable value is greater
than the amount required to pay all of such undersigned's Indebtedness
(including contingent debts), (ii) was and is able to pay all of its
Indebtedness as such Indebtedness matures, and (iii) had and has capital
sufficient to carry on its business and transactions and all business and
transactions in which it is about to engage. For purpose hereof, "Indebtedness"
means, without duplication (a) all items which in accordance with GAAP would be
included in determining total liabilities as shown on the liability side of a
balance sheet of the undersigned, as of the date on which Indebtedness is to be
determined, (b) all obligations of any other person or entity which the
undersigned has guaranteed, (c) reimbursement obligations in connection with
letters of credit issued for the benefit of the undersigned, and (d) the
Obligations.

              Capitalized terms used and not defined herein shall have the
meaning ascribed to such terms in the Loan Agreement.

              IN WITNESS WHEREOF, each of the undersigned has executed this
Joinder  Agreement  under seal as of the ____ day of ______________, ______.

Attest:                                     [NEW BORROWER NAME], a _____________
[Corporate Seal]

By:      _____________________________      By:      ___________________________
Name:    _____________________________      Name:    ___________________________
Title:   _____________________________      Title    ___________________________

                                       2



                                   EXHIBIT 7
                                   ---------

                              FINANCIAL STATEMENTS
                              --------------------



                                    EXHIBIT 8
                                    ---------

                                ESCROW AGREEMENT
                                ----------------



                                    EXHIBIT 9
                                    ---------

                                 [Pricing Grid]



If the Total Debt
to EBITDA Ratio is:  less than or equal to    greater than 2.0 to 1.0, but less     greater than 2.50 to 1.0, but
                           2.0 to 1.0            than or equal to 2.50 to 1.0     less than or equal to 3.25 to 1.0
                                                                         
then the Facility
A LIBOR Margin
shall be:                    1.75%                          2.00%                               2.25%

then the Facility
A Base Rate Margin
shall be:                    0.50%                          0.75%                               1.00%

then the Facility
A Commitment Fee
shall be:                    0.325%                         0.38%                               0.38%

then the Letter of
Credit Fee shall             1.75%                          1.75%                               1.75%
be:

then the Facility
B LIBOR Margin
shall be:                    2.25%                          2.50%                               2.75%

then the Facility
B Base Rate Margin
shall be:                    1.00%                          1.25%                               1.50%




                                   EXHIBIT 10
                                   ----------

                   FORM OF ASSIGNMENT AND ACCEPTANCE AGREEMENT

     THIS ASSIGNMENT AND ACCEPTANCE (this "Assignment and Acceptance") is made
this _____ day of ____________, ________, by and between
_________________________ (the "Assignor") and ________________________ (the
"Assignee"). Reference is made to the Business Loan and Security Agreement,
dated as of December 17, 2001 (as the same may be amended or modified from time
to time, the "Loan Agreement"), by and among (i) Citizens Bank of Pennsylvania,
a Pennsylvania state chartered bank, acting in its individual capacity as a
Lender, as the Swing Line Lender and as the Administrative Agent for the
Lenders, (ii) PNC Bank, National Association, a national banking association,
acting in its individual capacity as a Lender and as the Documentation Agent for
the Lenders, (iii) Branch Banking and Trust Company of Virginia, a Virginia
banking corporation, Chevy Chase Bank, F.S.B., a federal savings bank and any
other Lender parties thereto from time to time and/or replacements thereof, and
(iv) ManTech International Corporation, a New Jersey corporation ("ManTech"),
certain subsidiaries of ManTech and any person or entity who has become a
borrower party thereto pursuant to the Loan Agreement (collectively, the
"Borrowers"). Unless otherwise defined herein, capitalized terms used herein
without definition shall have the meanings given to them in the Loan Agreement.

     The Assignor and the Assignee hereby agree as follows:

     4. Assignment and Assumption. Subject to the terms and conditions hereof,
        -------------------------
the Assignor hereby sells and assigns to the Assignee, and the Assignee hereby
purchases and assumes from the Assignor, without recourse to the Assignor and,
except as expressly provided herein, without representation or warranty by the
Assignor, the interest or interests as of the Effective Date (as hereinafter
defined) in and to all of the Assignor's rights and obligations under the Loan
Agreement and the other Loan Documents (in its capacity as a Lender thereunder)
with respect to each of the Facilities represented by the Percentage(s)
specified with regard to such Facilities under the heading "Assigned Share" in
Item 4 of Annex I (each such assigned interest, an "Assigned Share"), including,
- ------    -------
without limitation, (i) in the case of the Loans made pursuant to Facility B,
the relevant Assigned Share of all rights and obligations of the Assignor with
respect to its "Commitments" under Facility B (unless terminated), Facility B
Promissory Note(s), and the Loans outstanding under Facility B (as the case may
be), and (ii) in the case of Loans made pursuant to Facility A, the relevant
Assigned Share of all rights and obligations of the Assignor with respect to its
Percentage of the Facility A Commitment Amount, Letter(s) of Credit, Swing Line
Loan Facility, Facility A Promissory Note(s) and Loans outstanding under
Facility A (as applicable). For purposes hereof, the "Commitments" shall mean,
individually or collectively as the context may require, the Facility A
Commitment Amount and/or the Facility "B" Commitment Amount.

     5. The Assignor. The Assignor (i) represents and warrants that it is the
        ------------
legal and beneficial owner of each interest being assigned by it hereunder, that
each such interest is free and clear of any adverse claim, and that as of the
date hereof its Commitments and outstanding Loans of each of the Facilities with
regard to which an interest is being assigned hereunder



(including any obligations with respect to Letter(s) of Credit, if applicable)
is as set forth in Item 4 of Annex I, (ii) except as set forth in clause (i)
                   ------    -------
above, makes no representation or warranty and assumes no responsibility with
respect to any statements, warranties or representations made in or in
connection with the Loan Agreement, any other Loan Document or any other
instrument or document furnished pursuant thereto or the execution, legality,
validity, enforceability, genuineness, sufficiency or value of the Loan
Agreement, any other Loan Document or any other instrument or document furnished
pursuant thereto, and (iii) makes no representation or warranty and assumes no
responsibility with respect to the financial condition of the Borrowers or the
performance or observance by the Borrowers of any of their respective
obligations under the Loan Agreement, any other Loan Document or any other
instrument or document furnished pursuant thereto.

     6. The Assignee. The Assignee (i) represents and warrants that it is
        ------------
legally authorized to enter into this Assignment and Acceptance, (ii) confirms
that it has received a copy of the Loan Agreement, together with copies of the
financial statements most recently required to have been delivered under Section
6.3 of the Loan Agreement and such other documents and information as it has
deemed appropriate to make its own credit analysis and decision to enter into
this Assignment and Acceptance, (iii) agrees that it will, independently and
without reliance upon any Agent, the Assignor or any other Lender, and based on
such documents and information as it shall deem appropriate at the time,
continue to make its own credit decisions in taking or not taking action under
the Loan Agreement, (iv) confirms that it is an Eligible Assignee, (v) appoints
and authorizes the Administrative Agent to take such actions as agent on its
behalf under the Loan Agreement and the other Loan Documents, and to exercise
such powers and to perform such duties, as are specifically delegated to the
Administrative Agent by the terms thereof, together with such other powers and
duties as are reasonably incidental thereto, and (vi) agrees that it will
perform in accordance with their respective terms all of the obligations that by
the terms of the Loan Agreement are required to be performed by it as a Lender.
[To the extent legally entitled to do so, the Assignee will deliver to the
Agent, as and when required by the Administrative Agent, duly completed and
executed originals of any and all applicable tax withholding forms]./1/

     7. Effective Date. Following the execution of this Assignment and
        --------------
Acceptance by the Assignor and the Assignee, an executed original hereof,
together with all attachments hereto, shall be delivered to each of the
Administrative Agent and the Borrowers (and also to the Administrative Agent,
the assignment fee referred to in Section 12.11(b) of the Loan Agreement, if
applicable). The effective date of this Assignment and Acceptance (the
"Effective Date") shall be the earlier of (i) the date of acceptance hereof by
the Administrative Agent and the Borrowers or (ii) the date, if any, designated
as the Effective Date in Item 5 of Annex I (which date shall be not less than
                         ------    -------
five (5) Business Days after the date of execution hereof by the Assignor and
the Assignee). As of the Effective Date, (y) the Assignee shall be a party to
the Loan Agreement and, to the extent provided in this Assignment and
Acceptance, shall have the rights and obligations of a Lender thereunder and
under the other Loan Documents, and (z) the Assignor

_______________
     /1/ Insert if the Assignee is organized under the laws of a jurisdiction
outside the United States.


                                       2



shall, to the extent provided in this Assignment and Acceptance, relinquish its
rights (other than rights under the provisions of the Loan Agreement and the
other Loan Documents relating to indemnification or payment of fees, costs and
expenses, to the extent such rights relate to the time prior to the Effective
Date) and be released from its obligations under the Loan Agreement and the
other Loan Documents.

     8.  Payments; Settlement. On or prior to the Effective Date, in
         --------------------
consideration of the sale and assignment provided for herein and as a condition
to the effectiveness of this Assignment and Acceptance, the Assignee will pay to
the Assignor an amount (to be confirmed between the Assignor and the Assignee)
that represents the Assigned Share of the principal amount of the Loans of each
relevant Facility made by the Assignor and outstanding on the Effective Date
(together, if and to the extent the Assignor and the Assignee so elect, with the
Assigned Share of any related accrued but unpaid interest, fees and other
amounts). From and after the Effective Date, the Administrative Agent will make
all payments required to be made by it under the Loan Agreement in respect of
each interest assigned hereunder (including, without limitation, all payments of
principal, interest and fees in respect of the Assigned Share of the Assignor's
Commitments and Loans assigned hereunder) directly to the Assignee. The Assignor
and the Assignee shall be responsible for making between themselves all
appropriate adjustments in payments due under the Loan Agreement in respect of
the period prior to the Effective Date. All payments required to be made
hereunder or in connection herewith shall be made in Dollars by wire transfer of
immediately available funds to the appropriate party at its address for payments
designated in Annex I.
              -------

     9.  Governing Law. This Assignment and Acceptance shall be governed by, and
         -------------
construed in accordance with, the internal laws of the Commonwealth of Virginia
(without regard to the conflicts of laws principles thereof).

     10. Entire Credit Agreement. This Assignment and Acceptance, together with
         -----------------------
the Loan Agreement and the other Loan Documents, embody the entire agreement and
understanding between the parties hereto and (except as otherwise expressly set
forth in the Loan Agreement) supersede all prior agreements and understandings
of the parties, verbal or written, relating to the subject matter hereof.

     11. Successors and Assigns. This Assignment and Acceptance shall be binding
         ----------------------
upon, inure to the benefit of and be enforceable by the parties hereto and their
respective successors and assigns.

     12. Counterparts. This Assignment and Acceptance may be executed in any
         ------------
number of counterparts and by different parties hereto on separate counterparts,
each of which, when so executed and delivered shall be an original, but all of
which shall together constitute one and the same instrument.

     IN WITNESS WHEREOF, the parties have caused this Assignment and Acceptance
to be executed by their duly authorized officers as of the date first above
written.


                                    ASSIGNOR:

                                       3



                                          ___________________________________
                                          By: ______________________________
                                          Title: __________________________


                                          ASSIGNEE:

                                          ___________________________________
                                          By: ______________________________
                                          Title: __________________________


Accepted this ____ day of
________________, _____:

CITIZENS BANK OF PENNSYLVANIA, as Administrative Agent

By: ________________________________
Title: _______________________________

Consented and agreed to (if applicable):

MANTECH INTERNATIONAL CORPORATION,
acting on its own behalf and as attorney-in-fact
for and on behalf of each Borrower

By: ________________________________
Title: _______________________________


                                       4



                                     ANNEX I
                                     -------

1.   Borrowers: ManTech International Corporation and its Subsidiaries

2.   Name and Date of Loan Agreement:

     Business Loan and Security Agreement, dated as of December 17, 2001, by and
     among (i) Citizens Bank of Pennsylvania, a Pennsylvania state chartered
     bank, acting in its individual capacity as a Lender, as the Swing Line
     Lender and as the Administrative Agent for the Lenders, (ii) PNC Bank,
     National Association, a national banking association, acting in its
     individual capacity as a Lender and as the Documentation Agent for the
     Lenders, (iii) Branch Banking and Trust Company of Virginia, a Virginia
     banking corporation, Chevy Chase Bank, F.S.B., a federal savings bank and
     any other Lender parties thereto from time to time and/or replacements
     thereof, and (iv) ManTech International Corporation, a New Jersey
     corporation ("ManTech"), certain subsidiaries of ManTech and any person or
     entity who has become a borrower party thereto pursuant to the Loan
     Agreement (collectively, the "Borrowers")

3.   Date of Assignment and Acceptance: ________________, ______.

4.   Amounts:




                                                             Amount of           Aggregate
                               Aggregate      Assigned       Assigned          for Assignor
                              for Assignor    Share/2/         Share        (after assignment)
                              ------------    -------          -----        ------------------
                                                                
(a) Facility A Commitment
    Amount                    $__________      _____%        $________          $___________
(b) Facility A Loans          $__________      _____%        $________          $___________
(c) Facility B Commitment
    Amount                    $__________      _____%        $________          $___________
(d) Facility B Loans          $__________      _____%        $________          $___________



5.   Effective Date: _____________, _______.




____________
/2/ Percentage taken to up to ten decimal places, if necessary.



6.   Addresses for Payments:

     Assignor:      _________________________________
                    _________________________________
                    _________________________________
                    Attention: __________________
                    Telephone: __________________
                    Telecopy: ___________________
                    Reference: __________________

     Assignee:      _________________________________
                    _________________________________
                    _________________________________
                    Attention: __________________
                    Telephone: __________________
                    Telecopy: ___________________
                    Reference: __________________

7.   Addresses for Notices:

     Assignor:      _________________________________
                    _________________________________
                    _________________________________
                    Attention: __________________
                    Telephone: __________________
                    Telecopy: ___________________


     Assignee:      _________________________________
                    _________________________________
                    _________________________________
                    Attention: __________________
                    Telephone: __________________
                    Telecopy: ___________________

8.   Lending Office of Assignee:
     _________________________________
     _________________________________
     _________________________________
     Attention: __________________
     Telephone: __________________
     Telecopy: ___________________


                                       2



                                   EXHIBIT 11
                                   ----------

                      FIRST SOURCE SUBDEBT LETTER AGREEMENT
                      -------------------------------------





                                   SCHEDULE 1
                                   ----------



                                  Facility A                   Facility B              Swing Line Facility
     Lenders              Percentage /Commitment $     Percentage /Commitment $     Percentage /Commitment $
     -------              ------------------------     ------------------------     ------------------------
                                                                              
Citizens Bank               37.5%      $24,375,000        37.5%      $2,400,000       100%      $10,000,000
PNC                          25%       $16,250,000         25%       $1,600,000        0%            $0
BB&T                      19.257703%   $12,517,507      19.257703%   $1,232,493        0%            $0
Chevy Chase               18.2422969%  $11,857,493     18.2422969%   $1,167,507        0%            $0

TOTALS:                      100%      $65,000,000         100%      $6,400,000       100%      $10,000,000




Wiring Instructions:   Citizens Bank of Pennsylvania
                       Philadelphia, PA
                       ABA #031 000 037
                       Attn:  Loan Administration
                       Account #9908 73703
                       Ref: ManTech International Corporation
                       PAYDOWN/ADVANCE/ETC.
                       Attn: Jeff Gillard

Wiring Instructions:   PNC Bank, National Association
                       ABA # 031207607
                       For Credit to PNC Business Credit
                       Account # 196039957830
                       For the benefit of ManTech International Corporation
                       Attn: Paul Raquepo

Wiring Instructions:   Branch Banking and Trust Company of Virginia
                       1909 K Street, N.W.
                       Washington, D.C. 2006
                       ABA # 054001547
                       Ref: ManTech International Loan
                       Account # 9560118500
                       Notify: Denise Wright at 202-835-9208

Wiring Instructions:   Chevy Chase Bank, F.S.B.
                       ABA# 255071981
                       Attention: CLS
                       Account # 29050030 r/c 082
                       Ref: ManTech
                       Attention: Rick Buterbaugh


                                  SCHEDULE 4.3
                                  ------------

1.    FIELD SUPPORT SERVICES MUHENDISLIK LIMITED SIRKETI, a corporation
      organized and existing under the laws of Turkey;

2.    MASI U.K. LIMITED, a corporation organized and existing under the laws of
      the united kingdom;

3.    MANTECH ADVANCED RECOGNITION LIMITED, a private company registered in
      England under the number 885326 formerly known as Advanced Recognition
      Limited;

4.    MANTECH DATABASE SERVICES EUROPE LIMITED, a corporation organized and
      existing under the laws of the United Kingdom; and

5.    REDESMUNDIAL, S.A., a corporation organized and existing under the laws of
      the Republic of Panama formerly known as ManTech International Panama,
      Inc.


                                                                    Exhibit 10.5

                                 PROMISSORY NOTE
                                 ---------------

$100,000.00
13 April 2001
- --
Fairfax, Virginia

FOR VALUE RECEIVED, the undersigned George J. Pedersen (the "Maker") an
individual having an address at 700 Potomac Knolls Drive, McLean, VA 22101,
promises to pay to the order of ManTech International Corporation (the
"Holder"), the sum of One Hundred Thousand Dollars ($100,000.00) together with
interest at the rate of Eight Percent (8%) per year in equal monthly
installments of $667.67 commencing on May 11, 2001 and continuing on the same
day of each succeeding month thereafter until paid in full.

This Note may be prepaid at any time or from time to time in whole or in part
without penalty, premium or permission.

In the event of any default hereof, all remaining payments shall become due and
payable at the option of the Holder and the Maker agrees to pay all costs of
collection, including reasonable attorneys' fees if placed in the hands of an
attorney for collection. Upon default, the Maker further authorizes any Clerk of
any Court of Record in the Commonwealth of Virginia or elsewhere to enter
judgment by confession against them in favor of the Holder hereof for the full
amount appearing due and payable hereon, together with interest, charges,
reasonable attorneys' fees and costs of suit, as above provided. Demand or
presentment for payment, notice of dishonor, protest and notice of protest are
hereby waived.

In the event any one or more of the provisions contained in this Note shall for
any reason be held to be invalid, illegal or unenforceable in any respect, such
invalidity, illegality or unenforceability shall not affect any other provision
of this Note, but this Note shall be construed as if such invalid, illegal or
unenforceable provision had never been contained herein.

This Note may not be changed orally but only by an agreement in writing and
signed by the paities against whom enforcement of any waiver, change,
modification or discharge is sought

This Note shall be interpreted in accordance with the laws of the Commonwealth
of Virginia.


MAKER:

/s/ George J. Pedersen
- -----------------------------
George J. Pedersen


WITNESS/ATTEST:

/s/ J. Jaye Free
- ------------------------------
J. Jaye Free


                                                                    Exhibit 10.5


                                 PROMISSORY NOTE
                                 ---------------

$16,795.93                                                       June 12, 1996

     FOR VALUE RECEIVED, George J. Pedersen, 700 Potomac Knolls Drive, McLean,
VA 22101, promises to pay to order of ManTech International Corporation on
demand as the holder of this note or at such other place as the holder of this
note might from time to time designate in writing, the principal sum of Sixteen
Thousand Seven Hundred Ninety Five Dollars and 93/100 ($16,795.93), plus
interest on the principal balance. Interest at the rate of eight (8) percent
will be calculated on an annual basis and deducted from Pedersen paycheck each
pay period. At present ManTech's systems provides for 26 paychecks per year. The
interest rate may be adjusted from time to time by Phoenix Home Life Mutual
Insurance Company and Pedersen note will be adjusted accordingly.

     1. This note may be fully or partially prepaid at any time without penalty.

     2. If the undersigned defaults in the payment of any installment due under
this note and fails to cure such default within thirty (30) days after the
holder of this note has sent written notice of default, then, at the option of
the holder of this note, the entire principal balance of this note and all
accrued and unpaid interest shall at once become due. Failure to exercise this
option shall not constitute a waiver of the right to exercise the same in the
event of any subsequent default.

     3. The undersigned promises to pay all costs of collection, including
reasonable attorney's fees, upon default in the payment of the principal or
interest of this note when due, whether suit is brought or not.

     4. In the event any one or more of the provisions contained in this note is
held to be invalid, illegal or unenforceable for any reason, such invalidity,
illegality or unenforceability is not to affect any other provision of the note;
this note is to be construed as if such invalid, illegal or unenforceable
provision had never been a part of it.

     5. This note may not be changed orally but only by an agreement in writing
and signed by the party against whom agreement enforcement of any change is
sought.

     6. The note is to be interpreted in accordance with the laws of the
Commonwealth of Virginia.

ATTEST                                  NAME
/s/ J. Jaye Free                        /s/ George J. Pedersen
- ------------------------------          ---------------------------
                                        George J. Pedersen
                                        Chairman of the Board


                                                                    Exhibit 10.5
FROM CORPORATE OFFICE

                                 PROMISSORY NOTE
                                 ---------------

$52,360.00                                                        23 June 1994


     FOR VALUE RECEIVED, George J. Pedersen, 700 Potomac Knolls Drive, McLean,
VA 22101, promises to pay to the order of ManTech International Corporation on
demand as the holder of this note or at such other place as the holder of this
note might from time to time designate in writing, the principal sum of Fifty
Two Thousand Three Hundred Sixty Dollars ($52,360.00), plus interest due on the
principal balance. Interest at the rate of eight (8) percent will be calculated
on an annual basis and deducted from Pedersen paycheck each pay period. At
present ManTech's systems provides for 26 paychecks per year. The interest rate
may be adjusted from time to time by Phoenix Home Life Mutual Insurance Company
and Pedersen note will be adjusted accordingly.

          1. This note may be fully or partially prepaid at any time without
penalty.

          2. If the undersigned defaults in the payment of any installment due
under this note and fails to cure such default within thirty (30) days after the
holder of this note has sent written notice of default, then, at the option of
the holder of this note, the entire principal balance of this note and all
accrued and unpaid interest shall at once become due. Failure to exercise this
option shall not constitute a waiver of the right to exercise the same in the
event of any subsequent default.

          3. The undersigned promises to pay all costs of collection, including
reasonable attorney's fees, upon default in the payment of the principal or
interest of this note when due, whether suit is brought or not.

          4. In the event any one or more of the provisions contained in this
note is held to be invalid, illegal or unenforceable for any reason, such
invalidity, illegality or unenforceability is not to affect any other provision
of the note; this note is to be construed as if such invalid, illegal or
unenforceable provision had never been a part of it.

          5. This note may not be changed orally but only by an agreement in
writing and signed by the party against whom agreement enforcement of any change
is sought.

          6. This note is to be interpreted in accordance with the laws of the
Commonwealth of Virginia.



                                       /s/ George J. Pedersen
                                       ---------------------------
                                       George J. Pedersen
                                       Chairman of the Board

Exhibit 10.8

====================================================================================================================================

1. CONTRACT ID CODE PAGE OF PAGES
AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT Y 1 1
- ------------------------------------------------------------------------------------------------------------------------------------
2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable)
P00029 20 November 2001 N/A PM Support Services
- ------------------------------------------------------------------------------------------------------------------------------------
6. ISSUED BY CODE W909MY 7. ADMINISTERED BY (If other CODE S2404A
-------- than Item 6) --------
US Army CECOM Acquisition Center - Washington DCMC Baltimore - Manassas
ATTN: AMSEL-AC-WB-B (Jeanine L. Lattin)
2461 Eisenhower Avenue, Hoffman I, Rm 1126
Alexandria, VA 22331-0700
- ------------------------------------------------------------------------------------------------------------------------------------
8. NAME AND ADDRESS OF CONTRACTOR (X) 9A. AMENDMENT OF SOLICITATION NO.
ManTech Telecommunications & Information Systems Corporation (MTISC)
A subsidiary of ManTech 9B. DATED (SEE ITEM 11)
ATTN: Mr. Robert F. Danzig, Director of Contracts
14119-A Sullyfield Circle, 1/st/ Floor 10A. MODIFICATION OF CONTRACT/ORDER NO.
Chantilly, VA 20151 DAAB07-98-A-6001
10B. DATED (SEE ITEM 13)
CODE 0D0S5 FACILITY CODE 24 July 1998
====================================================================================================================================
11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS
- ------------------------------------------------------------------------------------------------------------------------------------
_ The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt Offers is
[_] extended, [_] is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of
the following methods: (a) By completing Items 8 and 15, and returning ___ copy of the amendment: (b) By acknowledging receipt of
this amendment on each copy of the offer submitted: or (c) By separate letter or telegram which includes a reference to the
solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS
PRIOR TO THE HOUR AND DATA SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an
offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the
solicitation and this amendment, and is received prior to the opening hour and data specified.
- ------------------------------------------------------------------------------------------------------------------------------------
12. ACCOUNTING AND APPROPRIATION DATA (If required)
N/A
====================================================================================================================================
13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,
IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.
- ------------------------------------------------------------------------------------------------------------------------------------
(X) A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT
ORDER NO. IN ITEM 10A.

- ------------------------------------------------------------------------------------------------------------------------------------
X B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office,
appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).
- ------------------------------------------------------------------------------------------------------------------------------------
C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

- ------------------------------------------------------------------------------------------------------------------------------------
D. OTHER (Specify type of modification and authority)

- ------------------------------------------------------------------------------------------------------------------------------------
E. IMPORTANT: Contractor X is not, is required to sign this document and return ___ copies to the issuing office.
- ------------------------------------------------------------------------------------------------------------------------------------
14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solication/contract subject matter where
feasible.)
A. The purpose of this modification is to extend the term of the BPA (based on the extension provided by Mod #5 to
ManTech's GSA Schedule Contract, dated 11/20/01); therefore the end date is changed from 14 July 2002 to 14 July 2003; in
Terms and Conditions, paragraph 6(b) change the Contract Administration Office from Baltimore to Baltimore-Manassas and
in paragraph 14, delete the draft AFARS provision "Reporting of Contract Manpower Data Elements" and add "Reserved."

B. Summary for the Payment Office: Funding is at the task order level.

Contract Specialist's Ph: (703) 325-4998; Fax: (703) 428-1649; E-mail: Jeanine.Lattin@cacw.army.mil

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains
unchanged and in full force and effect.
- ------------------------------------------------------------------------------------------------------------------------------------
15A. NAME AND TITLE OF SIGNER (Type of print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)
Peggy W. Butler, Contracting Officer, Ph 703 325-4994, Fax:
703 428-1697, E-mail: Peggy.Butler@cacw.army.mil
- ------------------------------------------------------------------------------------------------------------------------------------
15B. CONTRACTOR/OFFEROR 15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 16C. DATE SIGNED
BY
[SIGNATURE ILLEGIBLE] 11/27/01
- ----------------------------- --------------------------------
(Signature of person (Signature of Contracting
authorized to sign) Officer)
====================================================================================================================================
NSN 7540-01-152-8070 30-105 STANDARD FORM 30 (REV. 10-83)
PREVIOUS EDITION UNUSABLE Computer Generated Prescribed by GSA
FAR (48 CFR) 53.24

DAAB07-98-A-6001
PART C -- Terms & Conditions

U.S. ARMY COMMUNICATIONS ELECTRONICS COMMAND
ACQUISTION CENTER-WASHINGTON
BLANKET PURCHASE AGREEMENT
MANTECH ADVANCED SYTEMS INTERNATIONAL

The U.S. Army Communications Electronics Command, Acquisition
Center-Washington has entered into a Blanket Purchase Agreement with ManTech
Advanced Systems International to provide Program Management Support services.
This agreement is under the terms and conditions of ManTech Advanced Systems
International's GSA Federal Supply Schedule Contract (hereafter referred to as
"Contract") and the following BPA terms and conditions.

1. Labor Categories Available under this BPA

See Section B and Attachment III.

2. Term of the BPA

The term of the resultant BPA is from 24 July 1998 through 14 July 2003.

3. Authorized BPA Users

This BPA is open to Product Manager Intelligence Fusion and other Army
Program Offices worldwide.

4. Pricing

Under the terms of the resultant BPA, individual Government customers may
request and negotiate additional discounts based upon their anticipated volume
of services to be purchased under a specified Task Order. Pricing will be
reviewed on an annual basis.

5. Inspection/Acceptance

Inspection and Acceptance of services shall be performed by a duly
authorized representative of the Government upon completion of the effort.

6. Payment

(a) Payment shall be made for services accepted by the Government office
specified in each individual task order. The Government will make payment in
accordance with the Prompt Payment Act (31 U.S.3903) and Office of Management
and Budget (0MB) Circular A-125, Prompt Payment. Payments under this BPA may be
made by the government either by check, electronic funds transfer, the Automated
clearinghouse, or the IMPAC card, at the option of the Government. In connection
with any discount offered for early payment, time shall be computed from the
date of the invoice. For the purpose of computing discounts earned, payment
shall be considered to have been made on the date, which appears on the payment
check, or the date on which an electronic funds transfer was made. The
contractor shall prepare and distribute a

1 P00029

DAAB07-98-A-6001
PART C -- Terms & Conditions

Standard Form 1034, "Public Vouchers for Purchases and Services Other Than
Personal", to the responsible task order representative identified therein for
acceptance of services. Each invoice shall be supported by an AMSEL-PC Form
5124, Statement of Services Rendered and accepted, executed by the Contractor
for personnel who performed the services for which payment is requested and
signed by the Contracting Officer's designated representative. The AMSEL-PC Form
5124 shall contain a listing of the work performed during the billing period by
each individual, including labor category, hourly rates, hours worked, overtime
and other direct reimbursable costs. Copies of the Standard Form 1034 and
AMSEL-PC 5124 will then be forwarded to the Payment Office.

The DFAS Payment Office address is:

DFAS-Columbus Center HQ0338 Comm #: 1-800-832-9976
DFAS-CO/South Entitlement Operations DSN FAX: 869-7910
P.O. Box 182264 Comm FAX: (614) 693-7910
Columbus, OH 43218-2264

(b) DCMC Baltimore- Manassas is hereby assigned contract administration
responsibilities on the subject BPA and all task orders issued thereto in order
to consolidate and coordinate payments within (one) cognizant Defense Finance &
Accounting Services (DFAS) Payment Office for any and all task orders issued.
Pursuant to 42.302a (1) DCMC Baltimore-Manassas is hereby delegated the
functions listed in FAR 42.302a (1) thru (69) as applicable.

The Contract Administration Office (CAO) address is:
DCMC Baltimore-Manassas S2404A Comm #: 703-330-3202
10500 Battleview Way Fax #: 703-330-3247
Suite 200 E-mail: MThomas@dcmde.dcma.mil
Manassas, VA 22110-2342

7. Task Orders

Ordering will be centralized. Orders will be issued by the USA CECOM
Acquisition Center-Washington. Any services to be furnished under this contract
shall be ordered by issuance of a task order (SF 1449,
Solicitation/Contract/Order for Commercial Items) or other authorized document
as authorized by the warranted Contracting Officer. Any request for a deviation
from the terms of this BPA shall be submitted to the Contracting Officer at the
following address:

US Army Communication-Electronics Command
Acquisition Center - Washington
ATTN: AMSEL-AC-WB-B, Hoffman Bldg. I, Room 1126
2461 Eisenhower Avenue
Alexandria, Virginia 22331-0700

All task orders placed against this BPA are subject to the terms and
conditions of the

2 P00029

PART C Terms & Conditions DAAB07-98-A-6001

applicable GSA Schedule contract and as supplemented in the resultant BPA.

A task order is considered "issued" when the contractor has received the
order from the Contracting Office.

The Contracting Office will be responsible for the distribution of each
task order to the BPA holder and the Contract Administration Office and the
Payment Office as specified on the face page of the order. The remaining
distribution shall be made by the ordering office and in accordance with their
procedures after validation. Detailed issuing instructions shall be provided in
the BPA holders ordering catalog, to include the Point of contact for the task
order with respective Email address and telephone number. This shall be
published on the BPA holder's www page. Authorization must be granted by the
CECOM Acquisition Center-Washington, Contracting Officer for others to use Part
8. The CECOM Acquisition Center-Washington will make credit card purchases,
unless otherwise authorized by the Contracting Officer.

8. Government wide Commercial Credit Card - Visa Impact Card

The following describes the procedures to be used for ordering services
from this BPA by using the Federal Government credit card. This option to order
by use of the Government credit card is strictly an option method of ordering by
the Government and may be used in place of ordering by the SF 1449. The
Government does reserve the right to unilaterally terminate credit card ordering
on this BPA at any time.

All ordering offices may use the Federal Government Credit Card (VISA)
referred to as "Purchase Card" as an optional method of ordering and paying for
purchases made under this contract.

The purchase card is specifically designed for use by the Federal
Government. The purchase card is like a typical personal credit card. However,
the authorization limits, certain categories of products or services, etc. The
Purchase Card will be exclusively used for official Government purchases in
accordance with the prices, terms, and conditions of this contract, the
simplified acquisition limitation as stated in the Federal Acquisition
Regulation (FAR) Part 13 is in effect on the date the order is placed and the
cardholder's delegation of authority. With respect to ordering authority, any
authorized user of this contract who is an appointed, recognized Government
credit card holder is allowed to use the credit card as a means of purchasing
items on this contract. For credit card holders only, this waives the
requirement for submission of a SF 1449. All appointed, recognized Government
credit card holders are subject to and responsible for complying with all rules,
regulation, and limits that come with their credit card.

Credit limits for the purchase card are dictated by each of the using
activities major commands. Knowledge of these credit limits for the purchase
card is the responsibility of the credit card holder and the approving office.
The contractor shall accept firm-fixed-price task orders under the contract made
by use of an authorized purchasing card. The contractor shall bill the
cardholder at the completion of the required services.

9. FAR 52.252-2, Clauses Incorporated by Reference (Feb 1998)

3 P00029

PART C Terms & Conditions DAAB07-98-A-6001

(b) The contractor may have access to source selection sensitive information.
Considering this, the contractor agrees, that in addition to the above
established requirements and prohibitions he will:

(1) Indoctrinate its employees on established source selection security
procedures. The indoctrination will ensure, as a minimum, the appropriate Army
security requirements and the Standards of Conduct under D0D 5500.7-R.

(1) Assure formal company policies and procedures effectively address the
philosophy of FAR 9.505, paragraph 4, and that all employees associated with
this contract are fully aware of those specific policies and procedures; and

(2) "When the contractor obtains access to the proprietary information of other
companies as a result of work under this PMSS contract, enter into agreements
with those companies to protect the proprietary information from improper use
and disclosure and submit copies of those agreements to the PCO: and"

(3) Obtain and furnish to the PCO from each employee, consultant and the like
engaged in any effort connected with this contract a written agreement which
shall in substance provide that such individual will not, during his employment
by the contractor or thereafter, disclose to others or use for his own benefit
information, trade secrets, confidential business information or acquisition
sensitive information to which access is gained as a result of work this PMSS
contract.

13. Time and Materials Task Orders

The labor categories and hours, materials and travel specified in each task
order represent the current best estimate of the work to be performed. To
enhance flexibility and to allow the contractor to determine the optimum labor
mix for the Task Order, the Contractor may, with approval of the COR, increase
or decrease the number of hours for each category specified in the individual
task order within the negotiated ceiling price.

The Contractor will not be paid for expenditures above the total direct
labor dollars/ceiling price of any individuals task order or the total task
order estimated amount. Adjustments to the ceiling price of individual orders
may only be accomplished by the execution of a bilateral modification.

14. Reserved.

6 P00029

====================================================================================================================================
SOLICITATION/CONTRACT/ORDER FOR COMMERCIAL ITEMS 1. REQUISITION NUMBER PAGE 1 OF

OFFEROR TO COMPLETE BLOCKS 12, 17, 23, 24 & 30 PMINTE-LFUS-BPA2
- ------------------------------------------------------------------------------------------------------------------------------------

2. CONTRACT NO. 3. AWARD EFFECTIVE 4. ORDER NUMBER 5. SOLICITATION NUMBER 6. SOLICITATION ISSUE
DATE DATE

DAAB07-98-A-6001 07/24/98 DAAB07-98-Q-6025
- -----------------------------------------------------------------------------------------------------------------------------------
7. FOR SOLICITATION a. NAME b. TELEPHONE NUMBER (no collect calls) 8. OFFER DUE DATE/
INFORMATION CALL: LOCAL TIME

OLLIE L. JOHNSON (703) 325-6805
- ------------------------------------------------------------------------------------------------------------------------------------
9. ISSUED BY: CODE W73QLH 10. THIS ACQUISITION IS 11. DELIVERY FOR FOB 12. DISCOUNT TERMS
DESTINATION UNLESS 00.000%
BLOCK IS MARKED DAYS O
USA CECOM ACQUISITION CTR-WASHINGTON [_] UNRESTRICTED NET 30
2461 EISENHOWER AVENUE (AMSEL-AC-WB-B) [_] SET ASIDE: % FOR [_] SEE SCHEDULE
ALEXANDRIA VA 22331-0700 ---------------------------------------------
FAX: 703-325-4995 [_] SMALL BUSINESS [X] 13a. THIS CONTRACT IS RATED ORDER
[_] SMALL DISADV. BUSINESS UNDER DPAS(15CFR 700)
[_] 8(A)
---------------------------------------------
13b. RATING

S10
--------------------------------------------
SIC: 14. METHOD OF SOLICITATION
SIZE STANDARD:
[_] RFQ [_] IFB [_] RFP
- ------------------------------------------------------------------------------------------------------------------------------------
15. DELIVER TO CODE SEETASK 18. ADMINISTERED BY CODE
SHALL BE SPECIFIED IN EACH TASK ORDER. USA CECOM ACQUISITION CTR-WASHINGTON W73QLH
2461 EISENHOWER AVENUE (AMSEL-AC-WB-B)
ALEXANDRIA VA 22331-0700
FAX: 703-325-4995
- ------------------------------------------------------------------------------------------------------------------------------------
17a. CONTRACTOR/ CODE 5N741 FACILITY 18a. PAYMENT WILL BE MADE BY CODE
OFFEROR CODE SHALL BE SPECIFIED IN EACH TASK ORDER. SEETASK
MANTECH ADVANCED SYSTEMS INTERNATIONAL
A MANTECH INTERNATIONAL COMPANY
14119A SULLEYFIELD CIRCLE 2ND FLOOR PHONE
CHANTILLY VA 20151 (703) 633-1300
- ------------------------------------------------------------------------------------------------------------------------------------
17b. CHECK IF REMITTANCE IS DIFFERENT AND 18b. SUBMIT INVOICES TO ADDRESS SHOWN IN BLOCK 18a. UNLESS BLOCK BELOW
PUT SUCH ADDRESS IN OFFER IS CHECKED [_] SEE ADDENDUM
- ------------------------------------------------------------------------------------------------------------------------------------
19. 20. 21. 22. 23. 24.
ITEM NO. SCHEDULE OF SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

- ------------------------------------------------------------------------------------------------------------------------------------
CLINS AS SHOWN HEREIN PROVIDE HOURLY RATES FOR
A VARIETY OF PROGRAM MANAGEMENT SUPPORT SERVICES.

PM INTEL FUSION
---------------
0001 PROJECT MANAGER 0.00 EA 73.88 0.00

(Attach Additional Sheets as necessary)
- ------------------------------------------------------------------------------------------------------------------------------------
25. ACCOUNTING AND APPROPRIATION DATA Award Oblig Amt US$ 26. TOTAL AWARD AMOUNT (For Govt. Use Only)

TO BE PROVIDED WITH EACH TASK 0.00 $ 0.00
- ------------------------------------------------------------------------------------------------------------------------------------
[_] 27a. SOLICITATION INCORPORATES BY REFERENCE FAR 52.212-1, 52.212-4, FAR52.212-3 AND 52.212-5 ARE ATTACHED. ADDENDA [_] ARE
[_] ARE NOT
ATTACHED
[X] 27b. CONTRACT/PURCHASE ORDER INCORPORATES BY REFERENCE FAR 52.212-4. FAR 52.212-5 IS ATTACHED ADDENDA [_] ARE [X] ARE NOT
ATTACHED.
- ------------------------------------------------------------------------------------------------------------------------------------
28. CONTRACTOR IS REQUIRED TO SIGN THIS DOCUMENT AND RETURN 02 COPIES TO 29. AWARD OF CONTRACT: REFERENCE MANTECH QUOTE
[X] ISSUING OFFICE. CONTRACTOR AGREES TO FURNISH AND DELIVER ALL ITEMS [X] OFFER DATED 07/13/98, YOUR OFFER ON SOLICITATION
SET FORTH OR OTHERWISE IDENTIFIED ABOVE AND ON ANY ADDITIONAL SHEETS (BLOCK INCLUDING ANY ADDITIONS OF CHANGES WHICH
SUBJECT TO THE TERMS AND CONDITIONS SPECIFIED HEREIN. ARE SET FORTH HEREIN, IS ACCEPTED AS TO ITEMS:
- ------------------------------------------------------------------------------------------------------------------------------------
30a. SIGNATURE OF OFFEROR/CONTRACTOR 31a.UNITED STATES OF AMERICA (SIGNATURE OF CONTRACTING
OFFICER)

[ILLEGIBLE SIGNATURE] [ILLEGIBLE SIGNATURE]
- ------------------------------------------------------------------------------------------------------------------------------------
30b. NAME AND TITLE OF SIGNER (TYPE OR PRINT) 30c. DATE SIGNED 31b. NAME OF CONTRACTING OFFICER 31c. DATE SIGNED
(TYPE OR PRINT)

/s/ Susan M. Siegel Vice President 7/24/98 Peggy w. Butler m63 7/24/98
- ------------------------------------------------------------------------------------------------------------------------------------
32a. QUANTITY IN COLUMN 21 HAS BEEN 33. SHIP NUMBER 34. VOUCHER NUMBER 35. AMOUNT
VERIFIED
CORRECT FOR
[_] RECEIVED [_] INSPECTED [_] ACCEPTED AND CONFORMS TO THE PARTIAL FINAL
CONTRACT, EXCEPT AS NOTED
- ------------------------------------------------------------------------------------------------------------------------------------
32b. SIGNATURE OF AUTHORIZED GOVT. REPRESENTATIVE 32c. DATE 36. PAYMENT 37. CHECK NUMBER

[_] COMPLETE [_] PARTIAL [_] FINAL
----------------------------------------------------
38. S/R ACCOUNT NUMBER 39. S/R VOUCHER 40. PAID BY
NUMBER

---------------------------------------
42a. RECEIVED BY (Print)
- --------------------------------------------------------------------------------
41a. I CERTIFY THIS ACCOUNT IS CORRECT AND PROPER FOR PAYMENT

- -----------------------------------------------------------------------------------------------------------------------
41b. SIGNATURE AND TITLE OF CERTIFYING OFFICER 41c. DATE 42b. RECEIVED AT (Location)

---------------------------------------
42c. DATE REC'D (YY/MM/DD) 42d. TOTAL
CONTAINERS

====================================================================================================================================
AUTHORIZED FOR LOCAL REPRODUCTION SEE REVERSE FOR OMB CONTROL NUMBER AND PAPERWORK STANDARD FORM 1449 (10-95)
BURDEN STATEMENT PRESCRIBED BY GSA FAR(48CFR) 53.212

- ------------------------------------------------------------------------------------------------------------------------------------
Public reporting burden for this collection of information is estimated to average 45 minutes per response,
including the time for reviewing instructions, searching existing data sources, gathering and maintaining the
data needed, and completing and reviewing the collection of information. Send comments regarding this burden 0MB No.: 9000-0136
estimate or any other aspect of this collection of information, including suggestions for reducing this Expires: 09/30/98
burden, to the FAR Secretariat (VRS), Office of Federal Acquisition Policy. GSA. Washington DC 20405
- ------------------------------------------------------------------------------------------------------------------------------------

*U.S. Government Printing Office: 1995-405-734/20008 STANDARD FORM 1449 (10-95) BACK

DAAB07-98-A-6001 3

ITEM DESCRIPTION QUANTITY U/I U/P AMOUNT
- ------ -------------------------------------------------- ---------- --- -------------------- --------

0002 SENIOR GRAPHICS DESIGNER 0.00 EA 24.170000 0.00
0003 ADMINISTRATIVE SUPPORT TASK MANAGER 0.00 EA 30.210000 0.00
0004 SENIOR CLERICAL ASSISTANT 0.00 EA 23.390000 0.00
0005 RECORDS FILE MANAGER 0.00 EA 24.660000 0.00
0006 SYSTEM MAINTENANCE TECHNICIAN 0.00 EA 23.140000 0.00
0007 INTERMEDIATE INTELLIGENCE RESEARCH 0.00 EA 42.690000 0.00
ANALYST
0008 PRINCIPAL INTELLIGENCE RESEARCH ANALYST 0.00 EA 71.040000 0.00
0009 SENIOR SOFTWARE ENGINEER 0.00 EA 70.630000 0.00
0010 SOFTWARE ENGINEER 0.00 EA 47.950000 0.00
0011 CONFIGURATION MANAGEMENT ENGINEER 0.00 EA 38.500000 0.00
0012 COMMUNICATIONS ENGINEER 0.00 EA 49.920000 0.00
0013 PRINCIPAL SYSTEMS ENGINEER 0.00 EA 77.620000 0.00
0014 SENIOR SYSTEMS ENGINEER 0.00 EA 67.040000 0.00
0015 ACQUISITION PROGRAM ANALYST 0.00 EA 57.450000 0.00
0016 SENIOR LOGISTICS MANAGEMENT SPECIALIST 0.00 EA 53.370000 0.00
0017 LOGISTICS MANAGEMENT SPECIALIST 0.00 EA 42.910000 0.00
0018 COST ANALYST 0.00 EA 62.000000 0.00
0019 OTHER DIRECT COSTS:
0019AA TRAVEL/PER DIEM
0019AB TRAINING
0019AC SUBCONTRACTING
0019AD HANDLING/PACKING/SHIPPING
0019AE INCIDENTAL/EMERGENCY PURCHASES
0020 FIXED HANDLING RATE - 4.76%

DAAB07-98-A-6001 4

ITEM DESCRIPTION QUANTITY U/I U/P AMOUNT
- ------ -------------------------------------------------- ---------- --- -------------------- --------

0020 (Continued)
OTHER PROGRAM MANAGEMENT OFFICES
1001 PROJECT MANAGER 0.00 EA 73.880000 0.00
1002 ADMINISTRATIVE SUPPORT TASK MANAGER 0.00 EA 30.210000 0.00
1003 SENIOR CLERICAL ASSISTANT 0.00 EA 23.390000 0.00
1004 SYSTEM MAINTENANCE TECHNICIAN 0.00 EA 23.140000 0.00
1005 PRINCIPAL RESEARCH ANLAYST 0.00 EA 71.040000 0.00
1006 SENIOR SOFTWARE ENGINEER 0.00 EA 70.630000 0.00
1007 CONFIGURATION MANAGEMENT ENGINEER 0.00 EA 38.500000 0.00
1008 COMMUNICATIONS ENGINEER 0.00 EA 49.920000 0.00
1009 PRINCIPAL SYSTEMS ENGINEER 0.00 EA 77.620000 0.00
1010 SENIOR SYSTEMS ENGINEER 0.00 EA 67.040000 0.00
1011 ACQUISITION PROGRAM ANALYST 0.00 EA 57.450000 0.00
1012 SENIOR LOGISTICS MANAGEMENT SPECIALIST 0.00 EA 53.370000 0.00
1013 COST ANALYST 0.00 EA 62.000000 0.00
1014 OTHER DIRECT COSTS:
1014AA TRAVEL/PERDIEM
1014AB TRAINING
1014AC SUBCONTRACTING
1014AD HANDLING/PACKING/SHIPPING
1014AE INCIDENTAL/EMERGENCY PURCHASES
1015 FIXED HANDLING RATE - 4.76%

DAAB07-98-A-6001

U.S. ARMY COMMUNICATIONS ELECTRONICS COMMAND
ACQUISTION CENTER-WASHINGTON
BLANKET PURCHASE AGREEMENT
MANTECH ADVANCED SYSTEMS INTERNATIONAL

1. Labor Categories Available under this BPA

See Section B

2. Term of the BPA

The term of the resultant BPA shall run concurrent with the vendors GSA
Schedule Contract.

3. Authorized BPA Users

This BPA is open to Product Manager Intelligence Fusion and other Army
Program Offices worldwide.

4. Pricing

5. Inspection/Acceptance

Inspection and Acceptance of services shall be performed by a duly
authorized representative of the Government upon completion of the effort.

6. Payment

Payment shall be made for services accepted by the Government office
specified in each individual task order. The Government will make payment in
accordance with the Prompt Payment Act (31 U.S.3903) and Office of Management
and Budget (0MB) Circular A-125, Prompt Payment. Payments under this BPA may be
made by the government either by check, electronic funds transfer, the Automated
clearinghouse, or

DAAB07-98-A-6001

the IMPAC card, at the option of the Government. In connection with any discount
offered for early payment, time shall be computed from the date of the invoice.
For the purpose of computing discounts earned, payment shall be considered to
have been made on the date, which appears on the payment check, or the date on
which an electronic funds transfer was made. The contractor shall prepare and
distribute a DD Form 250, "Material Inspection and Receiving Report", in
accordance with Department of Defense Federal Acquisition Regulation (DFARS)
Supplement, Appendix F, to the responsible task order representative identified
therein for acceptance of services. Copies of the DD 250 will then be forwarded
to the Payment Office.

7. Task Orders

US Army Communication-Electronics Command
Acquisition Center - Washington
AMSEL-AC-WB-B, Hoffman Bldg. 1, Room 1126
2461 Eisenhower Avenue
Alexandria, Virginia 2233 1-0700

All task orders placed against this BPA are subject to the terms and
conditions of the applicable GSA Schedule contract and as supplemented in the
resultant BPA.

A task order is considered "issued" when the contractor has received the
order from the Contracting Office.

8. Government wide Commercial Credit Card - Visa Impact Card.

The following describes the procedures to be used for ordering services
from this BPA

DAAB07-98-A-6001

by using the Federal Government credit card. This option to order by use of the
Government credit card is strictly an option method of ordering by the
Government and may be used in place of ordering by the SF 14409. The Government
does reserve the right to unilaterally terminate credit card ordering on this
BPA at any time.

All ordering offices may use the Federal Government Credit Card(VISA)
referred to as "Purchase Card" as an optional method of ordering and paying for
purchases made under this contract.

Credit limits for the purchase card are dictated by each of the using
activities major commands. Knowledge of these credit limits for the purchase
card are the responsibility of the credit card holder and the approving office.
The contractor shall accept firm-fixed-price task orders under the contract made
by use of an authorized purchasing card. The contractor shall bill the
cardholder at the completion of the required services.

9. FAR 52.252-2, Clauses Incorporated by Reference (JUN 1988)

This contract incorporates one or more clauses by reference, with the same
force and effect as if they were given in full text. Upon request, the
Contracting Officer will make their full text available.

FAR 52.232-25 Prompt Payment (June 1997)
FAR 52.247-34 Free on Board-Destination (Nov 1991)
FAR 52.246-4 Inspection of Services Fixed Price (Aug 1996)
FAR 52.213-1 Fast Payment Procedure (Aug 1988)

10. Emergency Items

If deemed necessary for the accomplishment of a specific task order non-GSA
schedule incidental items, to include emergency items may be ordered up to 10%
of the task order value.

11. Other Direct Costs

DAAB07-98-A-6001

Delivery orders issued will include estimates for cost of such efforts at
paragraph D.2.3 and an estimate for the cost of handling. The estimated costs of
handling will be computed by applying a fixed rate that reflects the cost of
handling to the estimates for the effort. The Contractor will be reimbursed the
actual cost of the efforts plus the amount of the handling charge estimated. The
fixed handling rate will be allowed against charges for Incidental/Emergency
purchases and Handling/Packaging and Shipping efforts only.

12. ORGANIZATION CONFLICT OF INTEREST

(a) The Contractor agrees that it or any of its affiliates, except as
exempted below, shall be excluded from participation as a contractor or
subcontractor for projects which shall be managed through this Projects
Management Support Services (PMSS) contract. "Affiliates" as used herein means
associated business concerns or individuals, if directly or indirectly either
one controls or can control the other or a third party controls or can control
both. This exclusion shall be for the period beginning with the date of award of
this contract through completion (final payment) of the individual projects
concerned, and for a period of two years thereafter. Further, the contractor
agrees that it or any of its affiliates may have direct access to acquisition
sensitive information shall be excluded from assisting in preparing a proposal,
serving as a consultant, and/or providing information acquired while performing
this contract to any firm participating either as a prime or subcontractor for
the projects managed or to be managed hereunder. The contractor agrees not to
use or disclose acquisition sensitive information or proprietary information to
which it obtains access as a result of projects managed under the PMSS contract
except as required for the performance of said work. This restriction applies to
the contractor, any contractor employee, consultant, or the like who obtains
access to such information.

If granted access to proprietary data of the company(s) participating in the
projects managed under this PMSS contract, the contractor agrees not to
disclose the information for as long as such data remains proprietary, or two
years following completion of the contract, whichever is longer.

The provision of this clause shall not be interpreted as precluding the
contractor from active participation in other on-going and future projects. As
used herein, "contractor" refers to the prime contractor, a subcontractor whose
assistance may be enlisted by the prime contractor (except as exempted above),
wholly or partially owned subsidiaries of the prime and/or subcontractor(s),
and any firm in which the prime and/or subcontractor(s) may have a vested
interest. The prohibitions of this clause apply only to those tasks which the
subcontractor accepts. The subcontractor shall not accept any task orders which
would create a conflict of interest. However, this exception for the
subcontractor does not absolve the prime contractor of full responsibility for
performance of all requirements on this contract. This prohibition applies to
the contractor under its current name, under any changed name, and to the
principal individuals owning, controlling or managing the contractor. If merged
with or acquired by any other entity, the prohibition applies to all contractor
officers, owners, and the specific individuals

DAAB07-98-A-6001

performing work on projects managed under this PMSS contract.

(b) The contractor may have access to source selection sensitive information.
Considering this, the contractor agrees, that in addition to the above
established requirements and prohibitions he will:

DAAB07-98-A-6001
Attachment I

STATEMENT OF WORK

D.I.0 INTRODUCTION AND GENERAL SCOPE

PM INTEL FUSION

A. Since 1984, the Project Management Office has employed an integrated
management approach to support all system acquisition functions. The goal has
been to integrate and enhance productivity for the various PMO Intelligence
Fusion sponsored programs, while integrating various management tools to
optimize and support planning, budgeting, scheduling, and engineering
initiatives.

The contractor will support the Project Management Office, Intelligence
Fusion (PMO Intel Fusion) by providing System Engineering and Technical
Assistance (SETA), Project Management, and Administrative Support Services in
response to specific tasks. This procurement of services will be implemented as
an indefinite delivery indefinite quantity (IDIQ) using task orders to react to
the reality of reduced and changing defense funding levels. PMO Intel Fusion
desires to have a support contractor offering reasonable continuity of existing
services, and the flexibility to adjust to changing requirements and defense
funding perturbations. Staffing levels on these efforts may vary from year to
year, or even within a year.

The contractor shall provide non-personal support-services only at the
government's facilities. These services are needed to accomplish tasks that
cannot be accomplished by PMO Intel Fusion because of time constraints and/or
expertise which is not available. The types of required services are: Project
Management, System Engineering, Software Engineering, Administration, Quality
Assurance, Integrated Logistics Support, Acquisition Management, and Information
Technology support to the PMO Intel Fusion.

OTHER ARMY PROGRAM OFFICES LOCATED WORLDWIDE

B. As required, the Contractor shall provide world-wide Program Management
Support Services at Government facilities in these areas: Project Management,
System Engineering, Software Engineering, Configuration Management, Training,
Integration Support, Testing, Quality Assurance, Acquisition Management and
Documentation Support.

D.l.l BACKGROUND

D.1.1.1 ALL SOURCE ANALYSIS SYSTEM (ASAS)

It is the mission of the PMO Intel Fusion to develop, acquire, and field
an automated, ruggedized, ASAS that fuses technical and intelligence data from
multiple sources with a goal of providing Army commanders with a near real time
view of the battlefield. The ASAS, comprised of the Analyst Control Element
(ACE) and the Remote Workstation (RWS), is the tactical intelligence node of the
Army Battlefield Command Systems (ABCS). Elements of ASAS will be located from
Battalion through Echelons Above Corps.

D.1.1.2 COUNTER INTELLIGENCE/HUMAN INTELLIGENCE MANAGEMENT SYSTEM (CHIMS)

The CHIMS product office is developing the ASAS CHIMS subsystem, which is
the CI/HUMINT component of the Intelligence and Electronic Warfare (IEW)
sub-element of the ABCS. It is a system that satisfies the Army's tactical
CI/HUMINT automation requirements for information collection, investigation,
interrogation, operation, document exploitation, and force protection.

D.1.1.3 INTEGRATED METEOROLOGICAL SYSTEM (IMETS)

The Integrated Meteorological System (IMETS) is the meteorological
component of the intelligence and Electronic Warfare sub-element of the ABCS.
IMETS provides commanders, at all echelons, with an automated

1 07/23/98

DAAB07-98-A-6001
Attachment I

weather system to receive, process, and disseminate weather observations,
forecasts, and weather and environmental effects decision aids to all
Battlefield Operating Systems. IMETS is an automated system in one of three
configurations, laptop. desktop or mounted in a heavy High Mobility
Multi-Purpose Wheeled Vehicle (HMMWV). IMETS provides automation and
communications support to staff weather teams assigned to from brigade through
Echelons Above Corps (EAC) and to Army Special Operations Forces.

D.1.1.4 JOINT COLLECTION MANAGEMENT TOOL (JCMT)

JCMT is the standard DoD Intelligence Information System (DODIS) migration
system for all source collection management. It will be used by national,
theater, and tactical organizations of all services. The key role of the system
is to provide tools for gathering, organizing, and tracking intelligence
collection requirements for all intelligence disciplines. Other essential
functions include the automated identification of collection resources,
collector feasibility, development of collection plans, and the correlation of
intelligence reports and messages to requirements.

D.1.1.5 OTHER INTELLIGENCE FUSION SPONSORED EFFORTS

As the Army's only intelligence fusion material developer the PM Intel
Fusion will be assigned responsibility for other intelligence related actions
when the PEO C3S determines it is in the best interest of the Army to do so.

D.1.2 PMO INTELLIGENCE FUSION ORGANIZATION

The PMO Intel Fusion is organized into a number of Product Managers,
Directorates, and various support offices. The contractor shall provide services
as stated in para D.2 for the following organizational elements of the PMO Intel
Fusion:

a. Project Management Office, Intelligence Fusion,

b. Technical Manager Directorate,

c. Readiness Directorate,

d. Business Management,

e. Product Manager for ASAS Software,

f. Product Manager for Joint Collection Management Tool,

g. Product Director for Counter Intelligence and Human Intelligence, and

h Product Director for Integrated Meteorological System.

D.2.O GENERAL CONTRACTOR RESPONSIBILITIES

The specified tasks required of the contractor's personnel are defined
below. As a means of focusing on quality personnel, we are providing equivalent
government personnel standards and skill levels. Our tasking will specify
minimum government equivalent skill levels. The Government shall retain the
right to refuse any person who is bid that does not meet these minimum skill
levels. Annex A contains a listing of descriptions of these government standards
for labor categories and skill levels.

a. Systems Engineering: These services include general systems
engineering, systems implementation planning, and system test and
evaluation. Products include various specifications, plans, analyses,
modeling, simulations, and reports.

b. General Support Engineering: Services include reviewing engineering
output in the areas of systems level operation and maintenance
procedures, performance improvements criteria, tools assessments,
metrics management, quality assurance, configuration management,
technical orders, maintenance practices, and technical orders. Assist
the PM with the design, development, review, and analysis of

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DAAB07-98-A-6001
Attachment I

all scheduling and logistic activities. Monitor and review manuals,
regulations, pamphlets, and various Army acquisition documentation for
applicability to PMO Intel Fusion.

c. General Test Engineering: Services include test planning, surveys,
test monitoring, reports and recommendations.

d. Technical Studies, Investigations or Analyses: Services include
feasibility investigations, cost analyses, and analyses and evaluation
of equipment, systems, and COTS or GOTS software products.

e. Information Technology products include data automation requirements,
specifications, plans, manuals, analyses, reports, system operations,
installation, maintenance, enhancements, configuration management and
training programs.

f. PMO Administrative Support: Provide the following services: clerical,
mail, message, and facsimile processing, reproduction services,
graphics support, and a technical data library. Additionally in a
facility coordinator role the contractor shall provide assistance with
physical security, clearance verification, receptionist duties, and
visitor control at the building entrance.

g. Presentation Materials: In conjunction with the completion of tasks
issued to accomplish the requirements of this SOW, the contractor may
be required to prepare various presentation materials (e.g.,
viewgraph, slides, graphics, narratives). Types and quantities of the
required materials will be specified in conjunction with the
applicable CDRL. The intent here is to preclude the contractor from
using engineering and technical man-hours (SETA portion of the SOW) on
administrative tasks. It is expected that contractor technical
personnel will frequently provide initial input to and review of
presentation materials, providing a value added input in their
capacity of technical assistance. It does not preclude the contractor
from providing administrative support and graphics support as
specified in paragraph D.3.8.5 of the SOW.

h. Meeting Reports: The contractor may be required to prepare reports on
selected meetings conducted exclusively between the contractor and the
government. Task Orders will be issued to identify the requirement for
any such reports and they will be tied to an existing CDRL. This is
not to preclude the contractor from generating technical notes based
upon the contractor's analysis of discussions or action items reviewed
while participating in a technical capacity at meetings. The intent is
preclude the contractor from performing clerical duties for the
government.

D.2.l APPLICABLE DOCUMENTS

Documents that are applicable to the effort associated with this Statement
of Work (SOW) are listed in Part D-3. It should be noted that MIL-STDs
referenced in Part D-3 are for information/guidance purposes only. These
documents are in current usage by the PMO Intel Fusion and as such serve to
define further typical DoD standards and parameters which must be considered by
the contractor. The contractor shall include pertinent references to these
documents in its final products. The PMO Intel Fusion is looking for a
contractor with a working knowledge of relevant rules, regulations, and
directions in order to eliminate a lengthy learning period. The government
already has these documents on hand and does not want the contractor to supply
them to us or to paraphrase them back to us. They are listed to see if the
contractors' proposals will demonstrate an understanding of their
interrelationships and relevance to what PM ASAS is doing.

Any assignments issued to the contractor which contain references to
documents not listed in Part D-3 will have those documents attached as part of
the tasking documentation or will have instructions as to how to obtain the
required documents. PMO Intel Fusion has an excellent technical library that the
winning contractor will be maintaining. When the requirements of the applicable
documents conflict with the instructions set forth in the tasking document, the
contractor should bring this to the attention of project office personnel.

D.2.2 CONCEPT FOR OPERATIONS

The contractor shall support those organizational elements specified in
paragraph D.l.2. General

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DAAB07-98-A-6001
Attachment I

contractor responsibilities that are specified in paragraph D.2. The basic
concept for the relationship of organizational elements is that of the Project
Manager and Product Managers or Product Directors will establish program
objectives. The Directorates and Product Managers will, in coordination with
these individuals, establish plans for achieving these objectives. Managers will
evaluate performance of the activities to determine if objectives are being
achieved a timely, cost effective manner. Any necessary correction or
redirection will be brought to the attention of the Contracting Officer's
Representative (COR).

D.2.3 MISCELLANEOUS

a. General. On an as-needed basis there will be several categories of
special taskings such as subcontracting, emergency purchases, TDY, per
diem, inter-site travel, training, and quick reaction capabilities
involving materiel packing, handling, and shipping. Such efforts will
be allowed for on delivery orders and will be billed at actual costs.

b. Travel will be conducted only at the direction of the government and
will include frequent local area meetings and less frequent trips to
field offices and contractor facilities at a variety of locations
throughout the United States. Overseas travel also may be required.
The airline and rental car portion of this travel will be handled by
the government in order to insure government control and travel at the
lowest possible government rates. Contractor per diem and
reimbursement for local travel expenses will be billed to the
government as other direct charges (ODCs). Details of estimated travel
will be available when individual task orders are written.

c. Contractor personnel may be required to attend training courses at the
request of the government. These will be handled as ODCs for billing
purposes. Training will include only those specialized courses
necessary for the proper support to the project office and must have
the approval of the Contracting Officer.

d. Emergency purchases may be required, but only at the request of the
Contracting Officer. These items would be in response to a quick
reaction requirement and will be considered only after government
purchase channels have been considered.

e. Subcontracting may be utilized as a contingency in order to react to
short term or special need requirements. With constrained funding,
short term consultants may very well be in the best interest of the
project office in order to satisfy those requirements that require
expertise that is not part of the existing level of support.

f. Contractor shall provide individuals with appropriate clearances,
depending on need-to-know. These will range from Secret to TS/SCI.

D.3.0 PERFORMANCE WORK STATEMENT

This SOW covers two distinctly different management efforts of the
contractor. One of these is exclusively associated with the internal management
of the contractor personnel provided under the terms of this contract. This
effort is referred to as Project Management and is covered in paragraph D.3.1.
The other management effort shall be exclusively associated with the management
tasks necessary to support the PMO Intel Fusion, and other Army Project Offices.
This effort is referred to as Program Management and is covered in paragraph
D.3.2.

D.3.1 PROJECT MANAGEMENT

The contractor shall designate one full-time, on-site individual who is
responsible for the cost, schedule and technical performance described herein.
The contractor shall determine the management, organization authority,
responsibility, controls, and the extent to which they apply to this project.
The contractor shall schedule work and staff in an optimum manner focusing on
economies and efficiencies. The contractor must remain flexible and responsive
to a changing acquisition management environment that often has new direction
and revised priorities. The contractor shall plan, coordinate, and supervise all
assigned tasks to insure accomplishment within

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DAAB07-98-A-6001

Attachment I

the time required and in the quality expected. The contractor shall maintain an
accurate, job time-cost accounting system that will permit the examination of
government cost-effectiveness and manpower utilization.

D.3.1.1 PROJECT SCHEDULE AND COST

The contractor project manager shall produce the schedule of work which
allows his work force to meet the delivery of products as specified by the
government. The contractor shall determine all major and minor problems
associated with the areas of cost and scheduling techniques and shall recommend
solution(s) to these problems and propose alternatives or solutions to all
problems identified. The contractor shall notify the government of all revisions
to the engineering and management methods and techniques utilized.

D.3.1.2 PROJECT CONTROLS

The contractor shall establish control over the use of man-hours in
delivering the products of this project. The contractor shall determine the
control needed to prevent the use of work codes or project numbers by
unauthorized personnel.

D.3.l.2.l PROJECT SCHEDULE AND COST TRACKING

The contractor shall determine the method for assessing the cost, schedule,
and technical performance of the work of this project. The contractor shall
determine the procedures for relating cost to schedule and technical performance
to assess the logical relationship of these three factors as they apply to
relevant tasks. Quarterly contract Funds Status Reports are required per CDRL
item.

D.3.1.2.2 MANAGEMENT REVIEWS

The contractor shall present and administratively support progress reviews.
These reviews will be held at least quarterly at the PMO Intel Fusion or the
contractor's facility. The topics of these reviews shall include staffing,
management concerns, scheduling, costs, planned procurements, identification,
and discussion of program issues, and status of resolved or unresolved action
items from previous meetings. The contractor shall make input to the agenda.

D.3.1.2.3 PROJECT STATUS REPORT COST AND PERFORMANCE

The contractor shall prepare and deliver a CDRL item entitled Project
Status Report Cost and Performance. This report shall contain a summary of
staffing by category and summary of work performed during the reporting period;
updated milestones to reflect changes in the project schedule; a synopsis of all
meetings and travel the contractor has conducted in performance of the contract;
all approved government task revisions; a synopsis of contractor proposed
contractual amendments; a detailed description of all problems, risks, or delays
experienced during the reporting period, and a description of all planned
activity during the next reporting period. These reports shall indicate
performance in terms of predicted and planned progress against actual progress.
Cost performance shall include budgeted versus actual expenditures.

D.3.1.2.4 DELIVERABLE SUBMISSION

Individuals taskers will state deliverable requirements, but every effort
will be made by the Government to provide a "paperless" environment. Whether the
submission is electronic or paper the contractor shall be responsible for
tracking deliverables.

D.3.2 PROGRAM MANAGEMENT

A principal area of focus for the contractor work force shall be to provide
management assistance for many of the functions assigned to the PMO Intel
Fusion, and other Army Project Offices. These functions are divided among the
organizational elements of the PMO Intel Fusion, and other army Project Offices.
The contractor shall provide support necessary to develop schedules, cost
estimates, required documentation, and analyses of all aspects of acquisition
management, business management and congressional liaison.

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DAAB07-98-A-6001
Attachment I

D.3.2.1 PROGRAM COST ESTIMATING AND ANALYSIS

D.3.2.1.1 BASELINE COST ESTIMATE (BCE)

Because of the general nature of the DOD acquisition process and the dynamic
nature of PMO Intel Fusion sponsored systems, it is imperative that a
dependable, audible life cycle cost estimate be kept current. The product
Baseline Cost Estimate (BCE) is one of the principal documents necessary to
achieve an operational, integrated cost estimate for the acquisition program
baseline. The cooperative exchange of estimating products tools and services is
essential to the formulation of a valid Army Cost Position. In addition to
maintaining a current BCE, it is necessary to frequently respond to "what if'
type cost questions based on either technical or programmatic changes in the
program. The government will oversee this work and prepare written task orders
associated with this effort.

D.3.2.l.2 COST ESTIMATING AND ANALYSIS

The contractor shall collect, review, and update cost data for Intelligence
Fusion software and hardware products, and prepare other special cost estimates.
Virtually all of this work is to be conducted on-site with limited travel
involved. The contractor shall use spreadsheet models and other government
provided tools. The Government will approve all the tools and the methodology
used in cost estimating. All estimates are to be updated as required. The
contractor shall provide personnel cognizant with applicable Army and DOD
costing regulations. Most importantly, all products shall be documented in order
to create an audit trail for the government cost representative and shall be
subject to internal and external reviews.

D.3.2.1.3 COST ESTIMATING

The contractor shall provide the services to update estimates for the PMO
Intel Fusion products and other associated projects and programs based on data
from PMO Intel Fusion and other activities which either define the system
requirements in more detail or define alternate program acquisition strategies.
In performing these tasks, the contractor shall prepare costs estimates for:

a. Software,

b. Hardware Production,

c. Pre-planned, Product Improvement,

d. Testing,

e. Training,

f. Research and Development,

g. Military Construction, Fielding, Sustaining,

h. Module and Unit Costs, and

i. Miscellaneous Costs.

These estimates shall be developed in a timely manner and in accordance
with the requirements for presentation of Life cycle cost estimates for Army
systems. The contractor shall be able to update cost estimates to current-year
dollars, then year dollars, project base year dollars, or any other base-year
designated by PMO Intel Fusion personnel using the most current DOD inflation
indices. The contractor shall develop estimates on a funding appropriation basis
and on a logistics category basis for each program.

D.3.2.2 ASSISTANCE IN DEVELOPING POSITIONS

The Contractor shall provide recommendations to program managers in areas
such as:

a. Architectural changes,

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Attachment I

b. New or changed prototyping strategy,

c. Incorporation (or deletion) of new (or existing) technical
requirements,

d. Changes in planned organizational usage and ILS concepts,

e. Sizing of impact of hardware changes on software and vice-versa, and

f. Funding justification and cost accounting.

D.3.2.3 REVIEWS AND STUDIES

As required, the contractor shall provide reviews and/or studies of other
program cost analyses, data base analyses, or other related activities. The
contractor will assist with Integrated Product Team (IPT) meetings and shall
record and publish minutes. The contractor will assist in preparing for
Milestone/Program reviews and will record and publish the results. The
contractor shall document findings, lessons learned, and report the same to the
government in a timely manner.

D.3.2.4 MASTER INTEGRATED SCHEDULE

The contractor shall assist in the maintenance of a Master Program
Schedule. This schedule shall be integrated in such a manner as to account for
significant dependencies.

D.3.2.4.1 PROJECT SCHEDULE ADMINISTRATION

The contractor shall provide assistance and training to program office
personnel in developing schedules for their offices and directorates. This
assistance and training shall include direction in the use of MS Project 95 and
methods for integrating proposed and "what-if" schedules into the project office
master schedule and to outside schedules such as those of Army Tactical Command
and Control System.

D.3.2.4.2 MILESTONE TRACKING

When inputting proposed schedules as a subset of the Master Schedules, the
contractor shall report schedule deviations for all milestones. For key
milestone deviations reflecting slippage, the contractor shall identify the
impact of the slippage and project office action necessary to support on-time
completion of the end activity. The contractor shall assist in the importing of
contractor schedules into the PMO Intel Fusion Master Schedule.

D.3.3 PROGRAM MANAGEMENT DOCUMENTATION

The contractor shall provide recommendations to the program manager for
developing and/or maintaining the acquisition management documentation required
by DODI 5000.2, DODI 5000.2M, and AR 70-1. A primary function of the contractor
is to review all documentation for continuity, compliance, and accuracy; making
recommendations for corrections and improvements. This documentation includes,
but is not limited to the following:

a. Mission Need Statement,

b. Operational Requirements Document (ORD),

c. Program Life Cycle Cost Estimate,

d. Acquisition Program Baseline (APB),

e. Test and Evaluation Master Plan (TEMP),

f. Modified Integrated Program Summary (MIPS) with all annexes,

g. Integrated Support Plan (ISP),

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DAAB07-98-A-6001
Attachment I

h. Program Management Plan (PMP),

i. Defense Acquisition Executive Summary (DAES),

j. AAE/VCSA Data Book,

k. System Threat Assessment Report (STAR),

l. Critical Intelligence Parameters (CIP),

m. Cost and Operational Effectiveness Analysis (COEA),

n. Competitive Alternative Source Waiver,

o. Memorandum of Agreement,

p. Memorandum of Understanding,

q. P-Forms, R-Forms and P18a Forms,

r. Smart Charts,

s. Congressional Briefing Books,

t. Acquisition Strategy Reports (ASR),

u. Milestone Read - Ahead Packages,

v. Exit Criteria,

w. Integrated Logistics Support Plans (ILSP),

x. Material Fielding Plans (MFP),

y. Material Fielding Agreements (MFA), and

z. Risk Assessments.

aa. Army Acquisition Program Executive Reporting System (AAPERS)

bb. Selected Acquisition Report (SAR)

D.3.4 ENGINEERING SUPPORT OF PMO INTEL FUSION PRODUCTS

The contractor shall have a working knowledge on DODI 5000.2, Defense
Acquisition Management Policies and Procedures; DIA Regulation 55-3,
Intelligence Support of Major Defense Acquisition Systems, and Army Regulation
381-11, Military Intelligence, Threat Support to U.S. Army Force, Combat, and
Material Development. Also, the contractor shall have working knowledge of
industry and government standards on the implementation of information and
communications networks and systems.

System, hardware, and software engineering input required on engineering
changes and upgrades of PMO Intel Fusion products is to be compatible the common
hardware/software (CHS) within the Army Battlefield Command Systems. The
contractor shall have a working knowledge of UNIX based operating systems,
ORACLE database management system, LAN (dual fiber optic), data communications,
interfaces, and intelligence data processing. The contractor shall also have a
working knowledge of rugged automatic data processing (ADP) equipment meeting
engineering specifications and standards of military intelligence operations and
to be in compliance with the Army Acquisition Executive (AAE) Policy Memorandum
91-3, Army Electromagnetic Environmental Effects (E3) Program Implementation.
The contractor shall also configure hardware, software and communication systems
for demonstration and fielding and will install systems both at the PMO and at
other sites designated by the Government.

a. The contractor shall provide engineering input to system Product
Managers, Product Directors, and Action Officers in engineering
analysis of computer-assisted technologies employed. For these
engineering analyses, the contractor shall have working knowledge of
system threat assessments pertaining to survivability in
electromagnetic, ADP (data corruption), and chemical contaminated

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environments. The engineering analyses shall consider, but not be
limited to, life cycle costs (5-10 years), value engineering, and
engineering changes submitted to the Project Management Office for
approval. The analyses shall also consider engineering alternatives in
computer-assisted technologies such as data processing
architectures/configuration for intelligence operations at Echelon
Above Corps (EAC), Corps, Heavy/Light Division, and special
intelligence operations ranging from sensitive compartmented
information (SCI) to unclassified security levels.

The contractor shall evaluate design approaches to system interfaces
and develop the documentation, including Interface Control Documents,
to ensure interface requirements are achieved. The contractor shall
report problem areas and make specific recommendations to the program
office to resolve problems or issues. The contractor shall conduct the
day-to-day operations of the Interface Control Working Group.

b. The contractor shall evaluate design approaches to hardware use (COTS,
GOTS and Development), design and architectures, system interfaces,
and develop the appropriate documentation. The contractor shall report
problem areas and make specific recommendations to the program office
to resolve problems or issues. The contractor will evaluate RAM as
well as EMI/EMC implications. Engineering analyses shall consider the
cost-effectiveness in military intelligence operations of utilizing
evolving technology such as RISC, CISC, and hybrid technologies;
implementation of high-speed, large capacity storage and retrieval
technologies for highly active, moderate, and archival transaction
processing; graphical/lexical processing with high-resolution, color,
flat panel displays/monitors; and the implementation of wireless LANs
to enhance mobility/flexibility and to reduce setup and tear-down
times. The contractor will configure systems for demonstrations, tests
and fieldings.

c. The contractor shall investigate and analyze the user requirements and
computer resource requirements as they relate to design issues,
resource limitations, and requirements allocation. All evaluations
shall include recommendations and proposed solutions. The scope of
this requirements analysis work shall encompass, as a minimum, the
following:

1. Pertinent Army and System Requirements,

2. Engineering Change Proposals/Requests,

3. Deviations,

4. Test Plans, Descriptions and Reports,

5. Requirements Reviews,

6. System Developer Deliverables,

7. Metrics,

8. COE,

9. PEO generated requirements,

10. ABCS Implied Requirements, and

11. Performance analysis.

d. The contractor shall provide the Communications Engineering support
required to acquire and field communications products under the
responsibility of the Intelligence Fusion Project Management Office,
such as the upgrade of the Block I ASAS Communications Control Set
(CCS), the Deployable Intelligence Data Handling System (DIDHS-Lite),
and the Compartmented All-Source Analysis System (ASAS) Message
Processing System (CAMPS). This support shall encompass all phases of
the acquisition process, and include the evaluation and specification
of communications architectures and operational requirements, as well
as the assessment of design approaches for interfacing Intelligence
Fusion communications products with other Army and DoD systems. This
support shall also include

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participation in communications product planning, reviews, and
evaluations; and, evaluating and participating in the final test
accreditation.

D.3.4.l REQUIREMENTS ANALYSIS AND VALIDATION

Using the government approved Operational Requirements Document and the User
Functional Description Document the contractor shall investigate and analyze the
user requirements and computer resource requirements as they relate to design
issues, resource limitations, and requirements allocation. All evaluations shall
include recommendations and proposed solutions. The scope of this requirements
analysis work shall encompass, as a minimum, the following:

a. Pertinent Army and System Requirements,

b. Engineering Change Proposals/Requests,

c. Deviations,

d. Test Plans, Descriptions and Reports,

e. Requirements Reviews,

f. System Developer Deliverables,

g. Metrics, and

h. Requirements Verification and Validation.

D.3.4.2 DESIGN SUPPORT

The contractor shall prepare evaluations of specifications and drawings,
including revisions; and participate in design reviews and audits of those
documents. The contractor shall prepare for and attend meetings, requirements
reviews, design reviews, working groups, and briefings related to system and
software development, and security accreditation and certification assess
progress against the requirements. The contractor shall report issues and/or
problems and recommend to the PM specific actions to resolve them. The
contractor shall evaluate and recommend solutions to security issues and
problems; and will review PMO Intel Fusion actions items and problem or
discrepancy reports.

The contractor shall investigate and analyze the developer's design
approach, methodology, processes, and ability to efficiently and effectively
meet system requirements. All evaluations shall include recommendations and
proposed solutions. The scope of this work shall encompass, at a minimum,
supporting the following:

a. All aspects of the system design,

b. Formal and Informal Design Reviews,

c. System Developer Deliverables,

d. Metrics,

e. Test Plans, Descriptions and Reports,

f Code Analysis/Inspection,

g. Human Factors Engineering,

h. Prototyping,

i. Access COTS and GOTS,

j. Develop Algorithms, and

k. Define Date Flow Processes.

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D.3.4.3 DEVELOPMENT

The SETA contractor shall assist the Government in the oversight of primary
contractors and their development of PMO Intel Fusion sponsored products.
Additionally, the SETA contractor, at the direction of PMO Intel Fusion's
Product Managers, shall evaluate COTS and GOTS products, prototype system
capabilities, assess the prime contractor's development processes for compliance
with government approved guidelines, and evaluate contractor developed products.

D.3.4.3.l DOCUMENT REVIEWS

The contractor shall review all development contractor produced
documentation, as well as other Army and DoD documentation, considering at least
the following factors as appropriate:

a. Compliance with contract standards/requirements;

b. Compliance with PMO directives;

c. Adequacy in supporting system development, quality, test, delivery,
and field support;

d. Changes/modifications; and

e. Impact on other systems and/or subsystems

All reviews shall in the submission of technical reports which shall include, as
appropriate, recommendations and proposed solutions.

D.3.4.3.2 QA AND CM

The contractor shall assist in the evaluation of and participate in
software-related QA and CM processes and products. All reports shall include
recommendations and proposed solutions. These processes and activities are
discussed in detail in C.3.5 shall include, but not be limited to the following:

a. FCA/PCA,

b. Software Management and Change Processes,

c. Configuration Control Boards,

d. Developer QA and CM Procedures, and

e. Developer QA and CM Results,

D.3.4.3.3 TEST WITNESSING

The contractor shall attend system and software testing, and assist in the
evaluation of the developer's associated test processes, organization, test
plans and procedures, and test results. All evaluations shall include
recommendations and proposed solutions. (See C.3.8 for more detailed discussion)

D.3.4.3.4 SOFTWARE METRICS

The contractor shall collect, analyze, and report metrics for at least the
following areas:

a. Software Faults,

b. Requirements Validation, and

c. Computer Resource Utilization.

Contractor evaluations of metrics data shall provide a risk assessment and
include recommendations and proposed solutions for minimizing risk.

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D.3.4.4 TEST AND EVALUATION

Test and evaluation of PM Intel Fusion systems is an integral and high
visibility facet of the development effort. Just as the traditional systems
development arena is becoming evolutionary, so must the test and evaluation
activities. Because new regulations and guidance now permit combining types of
tests and stresses the concept of continuous evaluation, for the purposes of
this SOW, test and evaluation includes the following activities:

a. Developmental or Technical Tests,

b. Operational Tests,

c. Government Acceptance Tests,

d. Contractor Tests,

e. Qualification Testing,

f. Regression Testing,

g. Accreditation and Certification Testing,

h. Security Testing,

i. Interoperability and Joint Interoperability Testing,

j. PM Intel Fusion systems participation in other BFA systems test
activities, and

k. Exercise/Demonstration activity in support of continuous evaluation.

D.3.4.4.1 SUPPORT TEST PLANNING

The contractor shall review and analyze existing test planning
documentation and procedures to ensure their correctness and adequacy. The
contractor will update existing documentation or draft and publish the necessary
plans and procedures that document the PM Intel Fusion testing program,
incorporating command direction, and regulatory and statutory guidelines. The
contractor will assist in the development and maintenance of integrated test
schedules. As these documents and schedules impact on all PM Intel Fusion
directorates and many external elements, the contractor shall assist in ensuring
that proper coordination is effected throughout the development process.

D.3.4.4.2 SUPPORT TEST RELATED MEETINGS AND CONFERENCES

The contractor shall assist in the coordination of test events with other
government agencies. Additionally, the contractor shall assist in the
preparation, coordination, and conduct of test related meetings sponsored by the
Project Office. The contractor shall attend both contractor and government
operational and technical meetings, design reviews, working groups, and
briefings related to testing. When directed, the contractor shall prepare,
coordinate, and publish minutes documenting these meetings. For meetings outside
of the Project Office, where minutes are not appropriate, significant test
related issues discussed shall be documented in trip reports. The contractor
shall also make recommendations to the government based on topics and issues
addressed at these meetings.

D.3.4.4.3 REVIEW TEST RELATED DOCUMENTATION

The contractor shall review all contractor and government test related
documentation. These reviews shall be accomplished in a timely and accurate
fashion. Particular attention must be paid to information presented, such as
system details, capability statements, numerical data, and schedules, to ensure
they are properly stated. Inaccurate data in these documents could cause serious
problems during test and evaluation activities. Comments based on reviews of
these documents shall be prepared accurately and constructively and forwarded to
the originator in a timely manner.

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D.3.4.4.4 DEVELOP TEST RELATED DOCUMENTATION

The contractor shall develop, coordinate, and publish test related
documentation, specifically the Test and Evaluation Master Plan (TEMP). The TEMP
must accurately describe the systems under development, the requirements that
will be satisfied by this development, the test events, and the integrated
schedule. The TEMP must be periodically reviewed to ensure it accurately
reflects all current aspects of PM Intel Fusion systems development. The
contractor shall also, as required, prepare other test related documentation
either separately or as part of documentation prepared by other PM Intel Fusion
or test community elements to include test plans, test procedures, and test
reports.

D.3.4.4.5 SUPPORT CONDUCT OF TESTS

The contractor shall provide support to the government during the conduct
of tests. While Federal Regulations prohibit contractor participation in
technical and operational test activities, it has proven beneficial to have
contractor support on site during test conduct to assist with test related
activities and to serve as a liaison with the Project Office. Further, the
contractor shall support unit and system, integration, and formal acceptance
testing. Due to the rapid pace and short duration of test events, quick
resolution to problem situations is essential. The contractor shall provide the
support required to assist in the resolution of these situations. During the
conduct of the test, periodic status reports shall be provided to the Project
Office by the contractor, preferably by e-mail or voice mail.

D.3.4.5 INSTALLATION AND CHECKOUT

The Contractor shall assist the PMO Intelligence Product Managers with the
installation and checkout of Government sponsored products. Once a product
baseline has been established and approved by the Government, the contractor
shall coordinated between PMO Intel Fusion Product Managers and the host sire to
facilitate the installation of designated products. The contractor, as a
minimum, shall accomplish the following activities:

a. Coordinate and Schedule product installation,

b. Conduct site surveys,

c. Submit Site survey reports,

d. Install product at Government designated site,

e. Test and validate system operations, and

f. Submit site installation report.

D.3.4.6 PROTOTYPING ENGINEERING AND SOFTWARE EVALUATION FACILTIY (SWEF)

The contractor shall provide engineering support to develop, build, and
test prototype hardware and software integration efforts in support of
developmental efforts outlined in paragraphs C.1.1.1 through C.1.1.5.
Additionally, the contractor personnel will perform equipment/hardware
configuration tasks which support prototyping activities, demonstrations,
systems configuration and test activities. Related to this task, the contractor
shall manage the day-to-day operations of the Software Evaluation Facility
(SWEF). Support to the SWEF shall include systems design and development,
configuration management, property accountability, and access control.

D.3.4.10 DEMONSTRATIONS AND EXERCISES

Because of the evolutionary methods being employed for system development,
PMO Intel Fusion will be deploying various products to field units in support of
demonstrations and exercises. The objective is to provide timely feed back to
the product developer. To this end, the contractor shall support the Government
in the conduct of demonstrations and exercises by facilitating system
configuration, defining interoperability requirements, establishing
communications, coordinating events, and providing technical assistance to
organizations and end users. At the conclusion of each demonstration or
exercise, the contractor shall submit a technical assessment citing both
positive and negative aspects of the product being deployed.

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D.3.5 QUALITY ASSURANCE, SOFTWARE QUALITY ASSURANCE AND CONFIGURATION
MANAGEMENT

The services to be provided by the SETA contractor encompass Systems Quality
Assurance (QA), Software Engineering Quality Assurance (SQA), and administration
of the Configuration Management (CM) program for the PMO INTEL FUSION. The SETA
quality assurance and configuration management team shall assist in achieving
the PMO INTEL FUSION quality goals and productivity objectives for each PMO
INTEL FUSION sponsored system (currently includes ASAS Block II, CI/HUMINT,
JCMT, ACT/WRAP, and IMETS). The contractor QA and CM staff shall support:

a. Systems quality assurance (QA) -- for hardware processes,

b. Software quality assurance (SQA), and

c. Configuration management (CM) -- for hardware/software

The SETA team shall exploit appropriate PMO INTEL FUSION management
information system tools, including the PMO INTEL FUSION Intranet resources, in
support of these efforts. The goal is to minimize the effort spent in technical
review and audit fact-gathering and report writing, and to maximize the time
available for analyzing and reacting on the review/audit output results and
conclusions.

D.3.5.1 GENERAL QA/SQA AND CM RESPONSIBILITIES

The following are tasks required of the SETA team QA/SQA/CM staff. The
SETA team shall have knowledge and skills equivalent to government personnel
normally assigned to this labor area. (See Annex A)

a. QA/SQA/CM Technical Plans and Documents: The PMO INTEL FUSION will employ
---------------------------------------
the standard configuration management practices and procedures identified
in Mil-Std-973, as tailored for ASAS Block II, and the legacy
configuration planning procedures adapted from ASAS Block I.

b. QA/SQA/CM Support Engineering The SETA staff shall review and audit
-----------------------------
specifications, plans, engineering studies and analyses, and general
contract data requirement deliverables. Review/audit products also
include reviewing prime contract engineering output in the areas of
systems level operation and maintenance procedures, performance
improvements criteria, tools assessments, metrics management,
configuration management, technical orders, maintenance practices, and
technical orders.

c. Software QA And CM Processes: These processes and activities include,
----------------------------
but are not limited to the following:

1. Functional Configuration Audit/Physical Configuration Audit
(FCA/PCA),

2. Software management and change processes,

3. PMO INTEL FUSION, designated CECOM, designated PEO C3S, and
designated associate contractor Configuration Control Boards (as
technical advisor),

4. Develop QA and CM procedures, and

5. Preparer of QA and CM activity results (Delivered reports include
recommendations and proposed solutions).

d. Independent Verification and Validation (IV&V) Support: An IV&V team (PMO
------------------------------------------------------
INTEL FUSION specified) shall ensure via testing and validation
procedures that the fielded system meets requirements and objectives,
and shall help to reduce total system life cycle cost by promoting the
discovery of design errors early in the system development (when such
errors are easier and less expensive to fix). Products include reports,
assessments, analyses, reviews, and independent tests.

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D.3.5.2 QA/SQA/CM PROGRAM MANAGEMENT

The SETA team shall schedule work and staff in an optimum manner focusing
on economies and efficiencies. The SETA team must remain flexible and responsive
to a changing acquisition baseline management environment that often has new
direction and revised priorities.

D.3.5.3 CONFIGURATION MANAGEMENT

The SETA contractor shall provide configuration management assistance for
hardware and software to the PMO INTEL FUSION. These efforts shall include but
not necessarily be limited to baseline management, configuration management and
configuration control audits.

The SETA contractor shall define a standard for "configuration management
status accounting" record-keeping for the PMO INTEL FUSION. The administration
of these records will be retained by each of the PMO INTEL FUSION product
offices; however, the SETA CM team shall assure the validity of the baseline
configuration control documentation through periodic audits, and assistance to
the Product Managers in protecting their account status.

D.3.5.3.1 BASELINE MANAGEMENT

The SETA contractor shall maintain an active baseline file, updating the
baselines as new items are approved. The SETA contractor shall assist PMO INTEL
FUSION in monitoring the hardware and software contractors' configuration
management efforts and make recommendations for correcting deficiencies and
making improvements. The SETA contractor shall assist in the conduct of Physical
Configuration Audit (PCA) and Functional Configuration Audit (FCA) of hardware
and software.

D.3.5.3.2 CONFIGURATION CONTROL

The SETA team shall review and analyze proposed technical changes to the
PMO INTEL FUSION functional, allocated, and product baselines, including new
interfaces, draft impact assessments, and prepare recommendations from other PMO
INTEL FUSION contractors for presentation to the appropriate PMO INTEL FUSION
Configuration Control Board (CCB).

The SETA CM team shall prepare recommendations for proposed upgrades and
required documentation for the appropriate PMO INTEL FUSION CCB, receive and
process these potential baseline changes, place them under configuration
control, and submit these to the Product Managers, or the appropriate PMO INTEL
FUSION Configuration Control Board (CCB), for consideration/approval.

The SETA CM team shall review, evaluate, and maintain Configuration
Management Plans (CMP) submitted to PMO INTEL FUSION by contractors for control
of hardware and software, and make recommendations for change as required. The
review shall be conducted by the SETA contractor using Mil-Std-973 as a guide.
Reports of findings shall be submitted in a CMP Evaluation Report. The SETA
contractor shall prepare and revise hardware and software CMPs as requested by
PMO INTEL FUSION.

D.3.5.3.3. ENGINEERING CHANGES AND VALUE ENGINEERING

The SETA team shall provide engineering input to Product Managers as value
engineering changes (VECP), and proposed engineering changes (P/ECP). The SETA
submitted analyses may consider engineering alternatives in computer-assisted
technologies, such as data processing architectures or configurations for
intelligence operations at Echelon Above Corps (EAC), Corps, Heavy/Light
Division(s), and special intelligence operations ranging from sensitive
compartmented information (SCI) to unclassified security levels.

D.3.5.4 QUALITY ASSURANCE MANAGEMENT

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The SETA QA/SQA team shall manage the PMO INTEL FUSION quality assurance
program to be in consonance with the directed "(Software) Quality Assurance
Plan(s)", or Contract Statements of Work (SOW), of the various contractors
designated by the PMO INTEL FUSION Product Managers. Default quality assurance
methods, practices and procedures shall be derived from ISO 9000-1 and 9003, and
IEEE software planning standards.

D.3.5.4.1 QUALITY ASSURANCE METRICS

D.3.5.4.1.1 SOFTWARE QUALITY METRICS

The SETA QA team shall coordinate with each of the PMO INTEL FUSION Product
Managers to assist them in developing a "best practices" quality metrics
process. A key emphasis of the "best practices" will be the identification of
initiatives for product, progress and process improvements, and the control
mitigation of technical/performance risks. The SETA QA team shall receive
Product Manager development contractor software and technical metric reports
periodically (via deliverable contract data), and evaluate these for product,
progress and process improvement. Software metrics shall comply with the
guidelines established in DA Pamphlet 73-1, Test and Evaluation Procedures and
Guidelines.

D.3.9.4.1.2 RELIABILITY, AVAILABILITY AND MAINTAINABILITY METRICS

The SETA QA team shall assist the government with the maintenance and
operation of trade-off model.

The SETA contractor shall interface with the prime contractor in collecting
technical performance measures (TPM) data and analyses from predicted data and
test data, evaluate allocated RAM requirements and system design to assess the
ramifications to operational requirements and mission effectiveness, and
recommend to the PMO INTEL FUSION specific changes to satisfy ABCS and SSS
requirements.

D.3.5.4.1.3 TEST SUPPORT

The SETA contractor shall attend QA related testing, analyze test
anomalies, recommend corrective action, witness "tear down" actions, report
results and recommend actions to the appropriate PMO INTEL FUSION Product
Manager office to resolve non-compliance with requirements.

D.3.5.4.2 QUALITY ASSURANCE ANALYSES

The SETA contractor shall perform analyses of hardware and software, with
emphasis on process control, in order to determine whether the nominal process
control and software assurance requirements are being satisfied. The SETA
contractor shall report development progress, problems, and recommend actions to
the appropriate PMO INTEL FUSION Product Managers to improve QA performance.

The SETA contractor shall assist the Readiness Management Division
Logistics Supportability functions by ensuring that PMO INTEL FUSION quality
assurance plans meet information collection and delivery requirements needed for
Material Release; further, that these provide input to Materiel Release actions
and all other Product Assurance activity related to Type Classification.

D.3.5.4.3 QUALITY ENGINEERING

The SETA contractor shall perform quality engineering analyses and review
environmental testing and qualification acceptance testing, review Software
Anomaly Reports (SAR), Software Problem Reports (SPR), Test Incident Reports
(TIR), Quality Discrepancy Reports (QDR), and provide analysis and
recommendations where appropriate. Analyses shall include development of
solutions where quality, or reliability deficiencies exist.

D.3.5.4.4 TECHNICAL REVIEWS AND AUDITS

The SETA team shall participate in design reviews and audits at the prime
contractors' facilities, at the PMO INTEL FUSION, and other locations, as
necessary to assess progress against QA/SQA requirements.

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The SETA team shall review and evaluate engineering, technical, and
planning documentation for current and advanced systems. The documentation
reviews may include: system specifications, design specifications, technical
support documents, operational documents, test documents, and maintenance
documents. As a minimum, the SETA contractor shall provide identification of
technical deficiencies, inconsistencies and obsolete methodology and data in
documentation review.

D.3.5.4.5 DOCUMENT REVIEWS

The SETA contractor shall review all contractor produced documentation, as well
as other Army and DoD documentation for compliance with contract
standards/requirements and adequacy in supporting system development, quality,
test, delivery, and field support.

All reviews shall include recommendations for improvement and proposed
solutions. The following list of characterizes the type of documents to be
reviewed:

a. System Specifications,

b. Interface Requirements Specifications, or, Interface Control
Documents,

c. Prime Item Design or Product Specifications,

d. Software and Hardware Requirements Traceability Reports,

e. Software Requirements Specifications,

f. Software Development Plan,

g. Software Metrics and Anomaly Reports,

h. Software Quality Program Plans, and Reports,

i. Software User Manuals,

j. Computer Software Operator Manuals,

k. Software and System Test Plans, Procedures, and Reports,

l. Version Description Documents,

m. Configuration Management Plans,

n. Risk Management Plans, and Reports.

o. Software Development Folders, and

p. Requirements Trace Matrix.

D.3.5.5 DIRECTED INDEPENDENCE VERIFICATION AND VALIDATION (IV&V)

D.3.5.5.1 DEVELOP SOFTWARE IV&V AUDIT/CHECKLIST FORMS

The SETA contractor shall develop forms, based upon applicable project
standards and procedures, which will be used to assess prime contractor work in
the areas of software product development, quality assurance, configuration
management, and test and evaluation.

D.3.5.5.2 AUDIT DEVELOPMENT CONTRACTOR SOFTWARE QUALITY ASSURANCE AND
CONFIGURATION MANAGEMENT (SQA/CM)

The SETA contractor shall audit SQA/CM participation in developer
activities. SQA/CM effectiveness and compliance with project standards shall be
evaluated. Technical reports shall be to document areas of concerns and
recommendations for improving the evaluated contractor's SQA/CM effectiveness.

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D.3.5.5.3 CONDUCT INDEPENDENT TESTING

When requested by the Product Manager, the SETA contractor shall test
the ASAS software against test issues and criteria established by government
technical and operational test organizations. The objective of this testing
shall be to identify functional, performance, or security deficiencies which
could impact on the ability of the system to perform to government standards.

The SETA contractor shall develop and maintain independent test plans
and procedures. The test planning shall include:

a. Equipment requirements and configuration for test,

b. Deviations from target hardware and software configurations,

c. Test structure,

d. Test schedule,

e. Test limitations,

f. Test dependencies,

g. Data collection,

h. Operations/processes required to evaluate data,

i. Reporting of results,

j. Failure reporting, and

k. Maintenance of test and system logs.

D.3.6 INTEGRATED LOGISTICS SUPPORT

D.3.6.1 INTEGRATED LOGISTICS SUPPORT MANAGEMENT

The contractor shall maintain ILS management documentation to support
type classification, material release, Integrated Logistic Support Plan (ILSP),
and other long range plans and studies as necessary in accordance with the
appropriate regulations for PMO Intel Fusion sponsored systems. In support of
these initiatives, the contractor shall develop milestone schedules and maintain
continuity of all ILS deliverables.

D.3.6.2 LOGISTICS SUPPORT ANALYSIS (LSA)

The contractor shall provide technical assistance to ensure LSA and
its reports are used in the development of PMO Intel Fusion sponsored systems.
The contractor shall review, analyze, assess, and report on the prime
contractors' LSA documentation being developed for PMO Intel Fusion sponsored
systems. LSAR Master Files will be available.

D.3.6.3 MAINTENANCE PLANNING

The contractor shall assist in the development of maintenance concepts
and plans which will describe the levels of maintenance to be used in fielding.
The Contractor shall review all related system hardware contracts and all other
Government provided planning ensure that all maintenance requirements and
factors are captured and documented for PMO Intel Fusion sponsored systems. The
contractor shall participate in all Logistics and Maintenance demonstrations, as
well as ILS Management Team meetings and submit appropriate technical reports
when requested by the Government.

D.3.6.4 TECHNICAL PUBLICATIONS

The contractor shall assist the Government in the compilation, review,
and verification and validation;

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and, as directed by the Government, develop Technical Manuals and Documentation
for PMO Intel Fusion sponsored systems. Assist the government in verification
and if required with contractor validation.

D.3.6.5 LOGISTIC DEMONSTRATION/MAINTAINABILITY DEMONSTRATION

The contractor shall provide Subject Matter Expertise (SME) input to
various logistics test and evaluation documents for PMO Intel Fusion sponsored
systems. These include the logistics demonstration and the maintainability
demonstration and various technical tests. The contractor shall assist in the
development and confirmation of the adequacy of the system support package. The
contractor shall: develop fault insertion lists, red-line technical
documentation, and develop ILSP.

D.3.6.6 PACKAGING, HANDLING, STORAGE TRANSPORTATION PLAN (PHST)

The contractor shall provide inputs to the PHST requirements for PMO Intel
Fusion sponsored systems.

D.3.6.7 MATERIAL FIELDING

The contractor shall provide input in creating and updating the material
fielding, delivery plans, and associated documents for PMO Intel Fusion
sponsored systems. These actions shall include the necessary letters of
notification, MOAs, conducting of site surveys, and assistance to the receiving
units to provide the appropriate planning for facility requirements.

D.3.6.8 SUPPLY SUPPORT

The contractor Shall provide assistance in the provisioning process and
support in evaluating (1) the spares requirements and parts standardization and
(2) the range and quantity of support items necessary to operate and maintain a
system for the first year fielded. The contractor shall participate in all
phases of the development of the sparing concepts through SSP and SSPCL
development and validation to sustainment. The contractor shall support ILSMT
meetings, participate in provisioning conferences, provide input to the sparing
concept, ensure provisioning is accomplished during material fieldings and
participate in demonstrations and tests. The contractor shall prepare and
evaluate lessons learned based on fielded systems and post-production support.

D.3.6.9 TEST, MEASUREMENT, AND DIAGNOSTIC EQUIPMENT (TMDE)

The contractor shall provide input to the development and assistance with
the evaluation of TMDE requirements for Intelligence Fusion sponsored products.
Test Requirements Documents will be provided.

D.3.6.10 TRAINING OF INTELLIGENCE FUSION SPONSORED PRODUCTS

The contractor shall provide training support for PMO INTEL FUSION
sponsored products. Training initiatives shall address the development,
implementation, and conduct of training for operators, supervisors, maintenance,
and managers; evaluation of contractor developed training products; development
of the Qualitative and Quantitative Personnel Requirements Base of Issue Plan;
the Outline Individual; and Collection Training Plan, and New Equipment Training
Plans. All training shall be developed in accordance with and evaluated against
the tenets of Instructional Systems Development (DA Pamphlet 350-30) and
MIL-STD-1379D, Contractor Training Programs. The contractor shall assist in
coordination and scheduling of all training activities to ensure responsiveness
to PMO INTEL FUSION requirements. The contractor shall investigate and develop
alternatives to the standard classroom methodology, i.e., distance learning and
virtual classroom. As a minimum, when directed by the Product Manager, the
contractor shall develop the following courseware:

a. Task and Skills Analyses,

b. Training Plans,

c. Instructor Lesson Plans,

d. Student Guides,

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e. Audio/Visual Aids,

f. Computer Supported Learning Activities (Training Scenarios), and

g. Student Course Evaluation Forms.

D.3.6.11 DESIGN INFLUENCE AND INTEGRATION OF LOGISTICS

The contractor shall provide technical advice as it pertains to design
reviews (IPRs, PDRs, CDRs, Monthly, and Quarterly reviews, etc.) for PMO Intel
Fusion sponsored systems to insure that all logistical aspects have received
appropriate consideration, advise the government of the full range of logistic
impacts of system Training Software from requirements definition through
acquisition and evaluation, and perform Logistics Engineering design trade-off
analysis and support the evaluation of Operations and Support cost impacts on
design changes. The contractor shall develop program test plans and procedures
for an integrated diagnostics assessment of program support. The contractor
shall provide reports of its evaluations of the prime contractor's efforts in
achieving objectives in the above areas of ILS.

D.3.6.12 PROVISIONING

The contractor shall report on its technical analysis of provisioning
requirements for PMO Intel Fusion sponsored systems. (See Supply Support
C.3.lO.8)

D.3.6.13 STANDARDIZATION AND INTEROPERABILITY

The contractor shall evaluate and identify actions necessary ensure
standardization and interoperability of the system within Army, DoD and NATO and
other allied countries for PMO Intel Fusion sponsored systems.

D.3.6.14 TRANSPORTABILITY PLANNING AND DOCUMENTATION

The contractor shall provide input to the transportability planning and the
development of documentation under the DoD Engineering for Transportability for
Intelligence Fusion sponsored products. The contractor will participate in
pre-material release activities and will coordinate with MTMC/TEA for releases
and approvals.

D.3.6.15 MANPOWER AND PERSONNEL INTEGRATION

The contractor shall assist the government in monitoring the development
and evaluation of the MANPRINT aspects of the Intelligence Fusion sponsored
products. The contractor will human factor recommendations and participate in
field surveys and design reviews.

D.3.7 INFORMATION TECHNOLOGY

The Information Technology team shall support all computer-related PMIF
management activities. The team's duties will include hardware research,
specification, and installation. They will also include software research,
installation, and training of users. The team shall maintain a Help Desk
facility to resolve users' problems and to track such activities. They shall
work towards minimizing redundant and paper-intensive tasks by implementing
computer-based solutions where appropriate. Also, given the growing usefulness
of the Internet in general and the World-Wide Web in particular, the team will
facilitate access to Internet-based resources, and work to provide information
to others -- remote members of the Program Office as well as the general public
- -- using this medium.

D.3.7.1 SYSTEMS MANAGEMENT

The contractor Information Technology (IT) team shall ensure that systems
be available 95% of the time. The systems shall be available twenty-four hours a
day, seven days a week. The contractor IT team shall provide notification to the
PMIF Technical Representative in the event that a system or systems will be
unavailable for any period of time greater than 15 minutes. The contractor IT
Manager or his representative shall attend all meetings

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related to the PMIF LAN. All contractor IT managed systems shall conform to
security guidelines described below under Information Security (para #). When
enhancements, upgrades or additional systems are required the contractor IT team
shall work with the PMO Technical Management representative to clearly identify
the requirements. The contractor IT team shall then develop enhancements,
upgrades or additional systems according to Government approved design plans.

D.3.7.2 LAN ADMINISTRATION/MAINTENANCE

The contractor IT team shall provide a PC-based workstation to each
employee assigned to the PMO. The workstations shall be configured to access the
LAN and software packages for office productivity (spreadsheet, word processor,
scheduling), electronic mail and internet web-browsing shall be provided and
configured. The contractor IT team shall provide remote access to the PMO LAN
for authorized personnel. The remote access shall allow users to access
electronic mail, shared files on the LAN and internet connectivity.

D.3.7.3 SUPPORTING SERVICES

The contractor shall provide the following LAN support services:

a. Provide the capability to print documents from any LAN workstation to
a network printer.

b. Provide public hard disk space on the network servers for commonly
used file access.

c. Provide individual hard disk space on the network servers enabling
users to backup workstation data and providing supplemental hard disk
space.

d. Maintain PMO databases. Database maintenance shall include access
maintenance, database backups and modifications as required.

e. Develop and maintain a PMO intranet for simple and efficient file
management and sharing within the PMO.

f. Maintain a PMO LAN configuration database.

D.3.7.4 INTERNET SERVICES

The contractor IT team shall coordinate with POCs from Fort Belvoir to
ensure connectivity to the Internet. This connectivity will allow basic TCP/IP
services to be used between PMIF and hosts on the Internet. These include
Telnet, FTP, and HTTP protocols. The contractor IT team shall maintain a
Firewall between the PMO LAN and the Internet to prevent unauthorized access to
local machines. The Firewall allows several basic TCP/IP services to pass
through it after authorization and packet analysis, but the Contractor IT team
shall create additional proxy services to allow other TCP/IP protocols to pass
through it for mission-related activities. Maintenance of the Firewall
necessitates the maintenance of local a Domain Name Service, which shall be run
on two different servers. The contractor IT team shall provide Simple Mail
Transfer Protocol (SMTP) connectivity between PMIF and the Internet via the
connection through Fort Belvoir.

D.3.7.5 WEBSITE MAINTENANCE AND DEVELOPMENT

The contractor IT team will maintain a web server for the hosting of PMIF
World-Wide Web pages for the public. They shall update existing Web pages and
create new ones as needed. They shall track website usage statistics and present
reports based on those numbers.

D.3.7.6 INFORMATION SECURITY

The contractor IT team shall be responsible for information security on the
PMO LAN and shall ensure that all systems are current and any security patches
or fixes are applied. The contractor IT team shall follow security guidelines as
provided by the Army Computer Emergency Response Team (ACERT). The contractor IT
team shall follow security directives from the PMO SSO.

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D.3.7.7 HARDWARE MAINTENANCE

The contractor IT team shall perform hardware maintenance for all
contractor IT managed systems and shall determine whether the most cost
effective method of repair is off-site or on-site. The contractor IT team shall
coordinate with the PMO Property Book Officer on all off-site repairs and
equipment replacement. All off-site repairs and replacements shall follow
Government purchasing procedures.

D.3.7.8 USER TRAINING

The contractor IT team shall provide familiarization computer training. The
primary emphasis will be on desktop operating system, word processing,
spreadsheet, graphics, electronic mail and scheduling packages. The contractor
IT team shall design training programs on the approved commercial or agency
supplied software packages. This training shall be of sufficient length and
detail to allow the user to acquire different levels of expertise as desired.

D.3.7.9 HELPDESK SUPPORT

The contractor IT team shall provide Helpdesk support during the core hours
of 7:30AM to 4:30PM and maintain a service call database that tracks all IT
related service calls. Contractor Helpdesk personnel shall be available by phone
and electronic mail during core hours and shall enter all service calls into the
service call database and notify other members of the contractor IT team of the
call. The contractor IT team shall respond to all service calls within one hour
and resolve all service issues.

D.3.8 PROJECT ADMINISTRATIVE SUPPORT SERVICES

D.3.8.l GENERAL ADMINISTRATIVE REQUIREMENTS

The contractor shall perform the following administrative services in
support of the PMO Intel Fusion Office. The contractor's employees shall remain
under the contractor's direct supervision at all times. This administrative
support pool shall be segregated physically from the government work space.
Although the Government will coordinate directions and tasks within the scope of
the contract, detailed instructions for contractor employees shall remain the
responsibility of the contractor. Additionally, a detailed set of PMO Intel
Fusion SOPs has been developed that delineates how the Government personnel use
task request forms to obtain contractor services.

D.3.8.1.1 CLERICAL ADMINISTRATIVE SUPPORT

The contractor shall support the project office with an administrative
support pool for typing, word processing, and data entry tasks. This support
pool will involve no more than one or two personnel and will be physically
separated from the government personnel. The supervision and direction of the
personnel in that pool shall remain the responsibility of the contractor. All
word processing tasks requested by PMO Intel Fusion must be accompanied by a
task order form available at the service desk. The requester's government
supervisor will establish a priority, sign the work order, and leave it with the
service desk. Completed work is passed back to the government through the
service desk operated the contractor. This individual is not to perform any of
the typical secretarial functions such as filing, telephone answering, travel
coordination, or any other task in support of any specific government worker.

D.3.8.l.2 DELIVERABLE MANAGEMENT

Individual taskers shall be maintained in an electronic form and backed-up
to ensure immediate availability should a "hard-copy" (paper) version be
required. Every effort will be made to provide a "paperless" environment. The
contractor shall maintain a data base to track the status of taskers,
deliverables/CDRLs.

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D.3.8.1.3 MAIL RECEIPT AND DISTRIBUTION

The contractor shall process all official incoming and outgoing mail,
documentation and packages, sort and provide for appropriate distribution,
collect all official outgoing mail and packages, and deliver to mail room or to
appropriate personnel in the PMO Intel Fusion. In addition, the contractor shall
operate a full service distribution center.

D.3.8.l.4 REPRODUCTION AND EXPENDABLE SUPPLIES

The contractor shall provide central reproduction service and maintain no
fewer than two satellite copier stations. The contractor shall manage all
reproduction activities for office personnel, and maintain and operate
reproduction machines. In addition, the contractor shall order, control, and
maintain adequate stock levels issue; and account for consumable supplies.

D.3.8.l.5 SECURITY SUPPORT

The contractor shall provide support for the following tasks:

a. Maintaining the incoming visitor database;

b. Identification Badges for incoming visitors;

c. Maintaining PMO Intel Fusion personnel clearance database to include
outgoing collateral clearances;

d. Preparing civilian Ids, requesting Pentagon Passes, and
fingerprinting;

e. Logging in of Collateral Classified documents,

f. Maintaining SCI clearance database for incoming SCI clearances; and

g. Physical security of the building and parking areas by monitoring OCTV
system.

D.3.8.2 RECEPTIONIST, VISITOR CONTROL, AND SECURITY

D.3.8.2.1 RECEPTIONIST

The contractor shall provide a receptionist (with a secret clearance) to
monitor access of personnel during scheduled PMO Intel Fusion operating hours
(700AM-6:00PM M-F).

D.3.8.2.2 VISITOR CONTROL

The contractor, shall control visitor access to the facility by use of a
government furnished, computerized data base, which shall be maintained by
entering and deleting clearance data. Additionally, hardcopy clearance status
shall be maintained in alphabetized files by individual name. By means of a
badge or ID exchange, cleared individuals shall be issued non-escort badges upon
providing approved identification and admitted to the facility. Uncleared
individuals shall be admitted only after exchanging an ID and being assigned a
cleared escort is provided. Visitor badges shall be collected when the visitor
leaves the facility. Any visitor remaining in the facility after 1630 shall have
one's ID returned and instructed to leave the PMO Intel Fusion badge in the
"badge box" inside the lobby entrance door. The contractor shall inventory all
PMO Intel Fusion badges at the start and end of the day. Missing badges shall be
reported to the security officer immediately.

D.3.8.3 FACILITIES MANAGEMENT

The contractor shall provide facility coordination to oversee the typical
house keeping services such as janitorial, refuse removal, preventive
maintenance, minor repair, painting, office re-locations, and furniture moves.
This is intended to be only a point of contact type service and not necessarily
to provide these services.

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Attachment I

D.3.8.4 SOFTWARE EVALUATION FACILITY

The contractor shall provide facility support to oversee the day-to-day
operations of the SWEF. In addition to technical engineering and development
taskers, the support contractor shall assist the government in property
accountability, configuration management, hardware configuration, execution of
demonstrations and access control.

D.3.8.5 GRAPHICS SUPPORT

The contractor shall prepare artwork, charts, viewgraphs, and graphs and
convert them into 35m, color slides, if needed, for meetings and briefings using
Government-owned computers with government owned software. This includes
periodic support to PMO Intel Fusion field locations and remote sites. This
graphics support pool is physically separated from government personnel and the
supervision of graphics personnel is the responsibility of the contractor.

The contractor shall update and maintain a graphics database of all
artwork, charts, viewgraphs, slides etc. that were developed in the past, as
well as all future work. The contractor shall provide artwork and layouts for
advertisements, award certificates and plaques.

D.3.8.6 The contractor shall provide as specified by individual task orders any
and all Program Management Support Services identified within this document for
other Army Program Offices worldwide.

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Attachment II

D.1.0.A Labor Categories and Job Descriptions - PM Intel Fusion

1. Program Manager

Job Description

Function as the primary interface with the client to ensure compliance with the
contract and the statement-of-work. Responsible for providing cost and schedule
analysis and reporting on the status of the contract. Plan, coordinate, and
supervise all allocated tasks. Develop, implement, and maintain a task
management approach for all work accomplished within the statement-of-work.
Provide accurate control and accountability of hours and work codes allocated to
tasks. Present quarterly program status reviews to the Contracting Officer
Representative. Submit semi-monthly cost status reports. Attend periodic staff
meeting and program review addressing staffing, management concerns, schedule
and costs issues, and planned procurements. Advise the client Program Manager
and his staff on all matters relating to workforce task allocations. Make
recommendations for realignment of workforce with manpower requirements to
ensure accomplishment of all tasks.

Qualifications

Master of Science degree in Computer Science, Systems Engineering, Business
Administration, or related field and a minimum of five years experience in
Program Management. The Master of Science degree may be substituted with a
Bachelor of Science Degree in Computer Science, Systems Engineering, Business
Administration, or related field and ten years of Program Management experience.
Individuals performing under this labor category must possess a security
clearance up to and including Sensitive Compartmented Information (SCI).

2. Senior Graphics Designer

Job Description

The Senior Graphics Designer shall prepare artwork, charts, and viewgraphs in
support of the Program Management Office, Intelligence Fusion. These products
may be used for briefings, documents, staff meetings, training, or other related
items. The Senior Graphics Designer shall maintain a graphics database and
repository for all previously developed graphic work. Accesses the Internet and
other sources to obtain, extract, and use authorized graphic materials.

Qualifications

High School diploma and three years recent experience as a graphics illustrator.
Be proficient in the use of PC graphic tools such as PowerPoint and other
Microsoft Office products. Individuals performing under this labor category must
possess a security

DAAB07-98-A-6001
Attachment II

clearance up to and including secret.

3. Administrative Support Task Manager

Job Description

The Administrative Support Task Manager shall supervise and oversee activities
of the reception desk, personnel security, and help desk; document reproduction;
mail (incoming/outgoing); CDRL accountability; contract files; and coordination
of building maintenance issues. Maintains accountability of all System
Engineering and Technical (SETA) taskers, establishing suspense dates and
coordinating outstanding tasks. Provide clerical support (typing, filing,
security inventory, etc.) in response to client tasking.

Qualifications

High School diploma and ten years experience supervising an office
administrative support staff. Proficient in the use of Microsoft Office
products. Individuals performing under this labor category must possess a
security clearance up to and including Sensitive Compartrnented Information
(SCI).

4. Records File Manager

Job Description

Provide assistance to the client in records maintenance. Ensure records and
files are maintained IAW established Army regulations. Prepare records for
retirement and store in appropriate containers to include handling of classified
documents. Train new personnel in files maintenance and management.

Qualifications

High School Diploma and two years experience as a file clerk supporting a DoD
organization. Must have a working knowledge of Government record and file
policies and procedures. Individuals performing under this labor category must
possess a security clearance up to and including secret.

5. Senior Clerical Assistant

Job Description

The Senior Clerical Assistant shall provide clerical support to PMO Intelligence
Fusion to include: manning the reception desk, visitor control, documentation
reproduction, mail (incoming/outgoing), word processing, and records filing and
maintenance.

Qualifications

DAAB07-98-A-6001
Attachment II

High School diploma and two years clerical experience. Proficient in the use of
MS Word, Excel and other Microsoft Office products. Individuals performing under
this labor category must possess a security clearance up to and including
secret.

6. System Maintenance Technician

Job Description

Perform hardware installation, integration, and maintenance to include all PCs
and peripheral equipment. Install and maintain software packages. Coordinate
with the vendor for maintenance and parts procurement. Maintain a minimum stock
level of ADPE repair parts for normal operations. Assist the Principal System
Engineer in providing technical assistance and support to PMO Intelligence
Fusion staff.

Qualifications

Associate of Science degree in related discipline and two years experience.
Degree requirements may be substituted with five years experience. Individuals
performing under this labor category must possess a security clearance up to and
including Sensitive Compartmented Information (SCI).

7. Sr. Software Engineer

Job Description

The Sr. Software Engineer provides technical expertise to PMO Intelligence
Fusion on information system architectures, implementation methodologies, and
test strategies. Provide quality assurance oversight of prime contractor
developed products. Evaluates prime contractor development of Contract Data
Requirements Lists (CDRLs). Evaluates the impact of emerging Government and
Information system standards (DoD Joint Technical Architecture, DII COE, and
Windows NT). Evaluate COTS and GOTS products for responsiveness to Government
requirements. Assess system interfaces and interoperability with other Army
Battlefield Command System (ABCS) nodes. Evaluate Software Implementation Plans.
Participate in periodic requirements and design reviews. Assist in defining the
evolving product baseline. Support the conduct of Government test and
evaluation. Evaluate system design and implementation for human factors
engineering issues.

Qualifications

Bachelor of Science degree in Computer Science, Systems Engineering, or related
discipline and five years experience. Bachelor of Science degree may be
substituted with ten years experience. Knowledgeable of Military Intelligence
operations and handling of related intelligence information. Individuals
performing under this labor category must possess a security clearance up to and
including Sensitive Compartmented

DAAB07-98-A-6001
Attachment II

Information (SCI).

8. Software Engineer

Job Description

The Software Engineer provides technical expertise to PMO Intelligence Fusion on
information system architectures, implementation methodologies, and test
strategies. Evaluates the impact of emerging Government and Information system
standards (DoD Joint Technical Architecture, DII COE, and Windows NT). Evaluate
COTS and GOTS products for responsiveness to Government requirements. Evaluate
Software Implementation Plans. Participate in periodic requirements and design
reviews. Assist in defining the evolving product baseline. Support the conduct
of Government test and evaluation. Evaluate system design and implementation for
human factors engineering issues.

Qualifications

Bachelor of Science degree in Computer Science, Systems Engineering, or related
discipline and three years experience. Bachelor of Science degree may be
substituted with eight years experience. Knowledgeable of Military Intelligence
operations and handling of related intelligence information. Individuals
performing under this labor category must possess a security clearance up to and
including Sensitive Compartmented Information (SCI).

9. Configuration Management Engineer

Job Description

The Configuration Management Engineer shall assist the PMO Intelligence Fusion
in the maintenance and accountability of both the hardware and software product
baselines and the disposition of end product items. Develop and maintain an
active requirements database for the functional, allocated, and product
baselines. Shall assist in the preparation for and conduct of Configuration
Control Board (CCB) meetings, and prepare and submit CCB meeting minutes.
Conduct periodic review and update of the PMO Intelligence Fusion Configuration
Management Plan. Assist the client in the preparation for and conduct of both
the Functional and Physical Configuration Audits and submit after action reports
as appropriate.

Qualifications

Bachelor of Science degree in Systems or Electronic Engineering, Computer
Science, or Management information Systems and five years experience. The
Bachelor of Science degree may be substituted with ten years experience.
Individuals performing under this

DAAB07-98-A-6001
Attachment II

labor category must possess a security clearance up to and including Sensitive
Compartmented Information (SCl).

10. Communications Engineer

Job Description

Provide technical support in the area of communications systems engineering.
Track evolving interoperability requirements for Intelligence and Electronic
Warfare, Command and Control Systems, and Signal Corps infrastructure systems,
develop and/or modify PM Intel Fusion architectures as required. Perform system
designs, prepare Specifications, Memoranda of Agreement, Statements of Work, and
Contract Data Requirements Lists (CDRLs) for hardware, software, and integration
contractors/agencies. Provide oversight support of all contractors'/agencies'
implementations. Ensure that system designs and implementations comply with all
Department of Defense Procurement Policies and Directives, Training and Doctrine
Command System Manager requirements, the Rainbow series of documents, Defense
Information System Agency Directives, and other pertinent procurement, Test and
Evaluation Command, and Safety requirements to achieve fully Materiel Releasable
products, which are supportable, multi-level secure accreditable, certifiable,
and meet or exceed all physical workmanship standards. Support all program
phases from concept to test, fielding, training, and maintenance. Prepare and
deliver/present White Papers, position papers, New Materiel Information
Briefings, In-Process Review Briefings, Acquisition Decision Memoranda
Briefings, and other documentation as required.

Qualifications

Master of Science degree in Communications Engineering or related discipline and
ten years experience. The Master of Science degree may be substituted with a
Bachelor of Science degree in Communications Engineering or related discipline
and fifteen years experience. Have a thorough knowledge of communications
systems supporting a Military Intelligence environment. Individuals performing
under this labor category must possess a security clearance up to and including
Sensitive Compartmented Information (SCI).

11. Sr. Systems Engineer

Job Description

Provide technical support in the area of system engineering. Conduct hardware
and software trade-offs and prepare technical reports on the assessments.
Participate in system requirements analyses, design reviews to optimize
operating system and software architectures. Support system test to include
EMI/RFI and shock vibration testing, as well as system interoperability testing.
Review and evaluate proposed system interoperability from both data exchange and
communications support capabilities.

DAAB07-98-A-6001
Attachment II

Assist the Government in the conduct of Reliability, Availability, and
Maintainability (RAM) analyses and submit appropriate post test reports. Assist
the client in the establishment and conduct of quality assurance analysis and
engineering to include periodic reviews and audits. Participate in contractor
site testing, security accreditation, and formal acceptance testing of all PMO
Intelligence Fusion products. Provide technical support for programmatic reviews
and meetings.

Qualifications

Master of Science in Systems Engineering, Computer Engineering or related
discipline and ten years experience. The Masters of Science in Systems
Engineering, Computer Engineering or related discipline may be substituted with
a Bachelor of Science Degree in Systems Engineering, Computer Engineering or
related field and fifteen years experience. Individuals performing under this
labor category must possess a security clearance up to and including Sensitive
Compartmented Information (SCI).

12. Acquisition Program Analyst

Job Description

Manage System Engineering/Technical Assistance (SETA) and Program Management
support activities for development of automated intelligence and intelligence
support systems. Task Order initiated responsibilities include but are not
necessarily limit to: program/project management; requirements analysis;
research and studies; systems tradeoff; functional and system architecture
design; software system engineering management support; system functional and
performance analysis; test planning and evaluation; user documentation;
acquisition management support; cost estimates and analysis; and program
administrative assistance support.

Qualifications

Master of Science in Business Administration or related discipline and five
years of acquisition management experience under the DOD 5000 series. The Master
of Science in Business Administration or related discipline may be substituted
with a Bachelor of Science in Business Administration or related discipline and
ten years experience under the DOD 5000 series. Individuals performing under
this labor category must possess a security clearance up to and including
Sensitive Compartmented Information (SCI).

13. Sr. Logistic Management Specialist

Job Description

Provide direct technical and administrative support to the Chief, Readiness
Management Support Division for Program Management, Intelligence Fusion products
(PM Intel Fusion) to include: development of all required technical
documentation and all fielding

DAAB07-98-A-6001
Attachment II

support documents lAW the provisions of pertinent regulatory guidelines. In
addition, provide guidance and expertise in the establishment of executable
Materiel Fielding Plans and Materiel Fielding Agreements. Oversee supply and
maintenance management to include unit and depot levels. Assist the client in
the conduct of product fieldings. Coordinate with the client and other agencies
to ensure conduct of New Equipment Training.

Qualifications

Bachelor of Science degree in Logistics Management, or a logistics discipline,
and ten years Integrated Logistic Support experience. Bachelor of Science degree
may be substituted with fifteen years Integrated Logistic Support experience.
Possess expertise in the Total Package Fielding process. Experience in both
wholesale and retail logistical management, including depot maintenance
scheduling and resource programming is essential. Individuals performing under
this labor category must possess a security clearance up to and including
Sensitive Compartmented Information (SCI).

14. Logistic Management Specialist

Job Description

Provides logistics support under the Project Manager (PM), Intelligence Fusion
(Intel Fusion) Systems Engineering/Technical Assistance (SETA) contract.
Requires knowledge of the Defense Acquisition Strategy and Procedure and various
regulations and policies with respect to materiel acquisition, integrated
logistics, and logistic supportability. Assists in developing Integrated
Logistics Support (ILS) functions contained in All Source Analysis System (ASAS)
Blocks I and II, e.g., system planning, Logistics Support Analysis (LSA)
documentation, fielding, and systems replacement/retirement. Develops,
maintains, reviews, and analyzes logistics program documentation such as the
Integrated Logistics Support Plan (ILSP), and Materiel Fielding Plan (MFP).
Develops logistics support concepts, maintenance plans and concepts. Develops
and maintains Master Project Schedule tracking ongoing programs within Intel
Fusion.

Qualifications

Bachelor of Science in Logistics Management or a related logistical discipline
and five years experience in distribution and supply management. The Bachelor of
Science degree may be substituted with ten years experience in distribution and
supply management. Must possess expertise in the Total Package Fielding process.
Individuals performing under this labor category must possess a security
clearance up to and including Sensitive Compartmented Information (SCI).

15. Cost Analyst

DAAB07-98-A-6001
Attachment II

Job Description

Prepares ACAT I program standard reports (AAPERS, DAES, SAR). As a Beta site for
Consolidated Acquisition Reporting Software (CARS), identify problems that
result in patches to the software. Submit SARs to the SARDA program analyst
responsible for review. Resolve software issues surrounding the preparation of
the SAR. Resolves sensitive program costing issues. Defends PMO positions before
OSD SAR review panels. Establish and maintain an accurate Acquisition Program
Baseline (APB) at the PMO, within SARDA, and within OSD. Review and analyze
cost/schedule data submitted in monthly Contractor Performance Reports.

Qualifications

Master of Business Administration and three years experience in cost performance
analysis for the Army Acquisition Community. The Master of Business
Administration may be substituted with a Bachelor of Science in Business
Administration or related discipline and eight years experience. Individuals
performing under this labor category must possess a security clearance up to and
including Sensitive Compartmented Information (SCI).

16. Principal Intelligence Research Analyst

Job Description

Principal Intelligence Analyst shall provide technical support and supervision
of analytic functions related to the broad spectrum of intelligence functions
(SIGINT, IMINT, HUMINT, etc.) to include subject matter expertise, working
knowledge of system interoperability requirements and solutions, computer-user
interface, definition and implementation of concepts of operation. Provide
expertise in defining system applications to meet user intelligence
functionality requirements, participate in system design reviews, system
characterization and testing, and system demonstrations and exercises.

Qualifications

Master of Arts degree in related discipline (Political Science, International
Relations, etc.) and ten years experience in Military Intelligence. Masters
degree may be substituted with a Bachelor of Science degree in related
discipline (Political Science, International Relations, etc.) and fifteen years
experience in Military Intelligence. Individuals performing under this labor
category must possess a security clearance up to and including Sensitive
Compartmented Information (SCI).

17. Intermediate Intelligence Research Analyst

Job Description

DAAB07-98-A-6001
Attachment II

The Intermediate Intelligence Analyst shall provide subject matter expertise
(SME) to support the development of intelligence automated data processing
system addressing the SIGINT, IMINT, HUMINT and other intelligence disciplines
to include Collection Management. Shall assess message and data interoperability
in response to user requirements to ensure optimizations of data exchanges.
Participate in requirements analyses, design reviews, and system
characterization and testing. Prepare and submit scientific and technical
reports. Provide SME support to exercises and demonstrations. Provide technical
and functional recommendations as appropriate.

Qualifications

Bachelor of Arts degree in related discipline (Political Science, International
Relations, etc.) and ten years experience in Military Intelligence. Bachelor of
Arts degree may be substituted with fifteen years experience in Military
Intelligence. Individuals performing under this labor category must possess a
security clearance up to and including Sensitive Compartmented Information (S
CI).

18. Principal System Engineer Job Description

The Principal System Engineer shall perform research on current information
systems technology in response to All Source Analysis System (ASAS) system
requirements. Provide recommendations as to system architecture and coordinate
with the Prime Contractor to ensure optimization of system performance. Assess
COTS and GOTS products (imagery, mapping, graphics, information handling, etc.)
for their responsiveness to military intelligence operations. Evaluate and
recommend design approaches to satisfy system architecture and required
interfaces and provide recommendations to resolve problems/issues. Participate
in requirements and design reviews, Configuration Control Board meetings, and
Integrated Product Team planning meetings. Prepare and submit Scientific and
Technical Reports based of client tasking.

Qualifications

Doctorate in related discipline (Systems Engineering, Computer Science,
Management Information Systems, etc.) and ten years experience in technology and
intelligence related discipline. A Master of Scienc