FAIRFAX, Va.--(BUSINESS WIRE)-- ManTech International Corporation (NASDAQ: MANT) has named Daniel J. Keefe President and Chief Operating Officer of its Technical Services Group. Brigadier General Keefe, U.S. Army (Ret) was previously Executive Vice President and general manager of the group. The Technical Services Group is the largest operational unit within ManTech and provides mission-critical technology services and solutions globally, to include all aspects of C4ISR, systems sustainment, logistics and systems engineering to the Department of Defense and Department of State.

Keefe replaces Louis M. Addeo, who will be promoted to Executive Vice President for Corporate Development and Strategic Acquisitions. In this new role, Mr. Addeo will have responsibility for expanding the business portfolio beyond markets currently served by the corporation.

Both Keefe and Addeo will report directly to Chairman and Chief Executive Officer, George J. Pedersen.

"Our excellent performance on behalf of our customers and their mission, management depth and strong balance sheet ensure we enter 2013 well positioned for long-term growth," said Pedersen. "ManTech enjoys a long history of successfully adapting quickly to new markets and changing environments, and these new assignments for Dan and Lou further our efforts to maximize our growth potential."

About ManTech International Corporation

ManTech is a leading provider of innovative technologies and solutions for mission-critical national security programs for the intelligence community; the Department of Defense, including its health organizations; the departments of State, Homeland Security, Energy and Justice, including the Federal Bureau of Investigation (FBI); the space community; and other U.S. federal government customers. We provide support to critical national security programs for approximately 60 federal agencies through approximately 1,000 current contracts. ManTech's expertise includes command, control, communications, computers, intelligence, surveillance and reconnaissance (C4ISR) lifecycle support; cyber security; global logistics support; intelligence/counter-intelligence support; information technology (IT) modernization and sustainment; systems engineering; test and evaluation; and health IT. ManTech supports major national missions, such as military readiness, terrorist threat detection, information security and border protection. Additional information on ManTech can be found at www.mantech.com.

Forward-Looking Information

Statements and assumptions made in this press release, which do not address historical facts, constitute "forward-looking" statements that ManTech believes to be within the definition in the Private Securities Litigation Reform Act of 1995 and involve risks and uncertainties, many of which are outside of our control. Words such as "may," "will," "expect," "intend," "anticipate," "believe," or "estimate," or the negative of these terms or words of similar import are intended to identify forward-looking statements.

These forward-looking statements are inherently subject to risks and uncertainties, and actual results and outcomes may differ materially from the results and outcomes we anticipate. Factors that could cause actual results to differ materially from the results we anticipate, include, but are not limited to, the following: adverse changes in U.S. government spending levels for programs we support due to budgetary constraints affecting federal government spending, changing mission priorities or other factors; adverse changes in our mix of contract types; failure to retain existing U.S. government contracts, win new contracts or win recompetes; failure to obtain option awards, task orders or funding under contracts; risk of contract renegotiation, performance, modification or termination; competition; failure to maintain strong relationships with other contractors; failure to identify or execute future acquisitions or to successfully integrate recently acquired companies or businesses into our operations or to realize any accretive or synergistic effects from such acquisitions; risks associated with complex U.S. government procurement laws and regulations; adverse results of U.S. government audits of our government contracts; risks of financing, such as increases in interest rates and restrictions imposed by our outstanding indebtedness, including the ability to meet financial covenants, and risks related to an inability to obtain new or additional financing. These and other risk factors are more fully discussed in the section entitled "Risks Factors" in ManTech's Annual Report on Form 10-K previously filed with the Securities and Exchange Commission on Feb. 24, 2012, Item 1A of Part II of our Quarterly Reports on Form 10-Q, and, from time to time, in ManTech's other filings with the Securities and Exchange Commission.

The forward-looking statements included herein are only made as of the date of this press release, and ManTech undertakes no obligation to publicly update any of the forward-looking statements made herein, whether as a result of new information, subsequent events or circumstances, changes in expectations or otherwise.

ManTech International Corporation
Sally Sullivan, 703-218-8291
sally.sullivan@mantech.com

ManTech-L

Source: ManTech International Corporation

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