ManTech-AECOM Joint Venture Awarded $30 Million Contract for Preparation of Navy and Marine Corps Environmental Planning Documents for In-Water and Coastal Projects in California, Nevada, Arizona, and Other Locations in the United States

FAIRFAX, Va., Feb. 26, 2016 -- The Department of the Navy, Naval Facilities Engineering Command (NAVFAC) Southwest has awarded ManTech (Nasdaq:MANT), in a joint venture with AECOM, a $30 million firm-fixed-price, indefinite-delivery/indefinite-quantity (IDIQ) for preparation of National Environmental Policy Act environmental planning documents for Navy and Marine Corps in-water and coastal projects in the NAVFAC Southwest area of responsibility (AOR). Work will be performed at various Navy and Marine Corps facilities and other government facilities within the NAVFAC Southwest AOR including, but not limited to, California, Arizona, Nevada, and other locations in the U.S. The single award IDIQ contract was competitively procured and has a 12-month base period of performance plus four 12-month option periods.

"We look forward to supporting NAVFAC Southwest on this very important environmental program," said Daniel J. Keefe, president and chief operating officer of ManTech’s Mission Solutions & Services Group.

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 Departments of Defense, State, Homeland Security, Energy, Veterans Affairs, and Justice, including the Federal Bureau of Investigation; the health and space communities; and other U.S. federal government customers. We provide support to critical national security programs for approximately 50 federal agencies through approximately 1,000 current contracts. ManTech's expertise includes cyber security; command, control, communications, computers, intelligence, surveillance, and reconnaissance (C4ISR) solutions and services; information technology (IT) modernization and sustainment; intelligence/counter-intelligence solutions and support; systems engineering; healthcare analytics and IT; global logistics support; test and evaluation; and environmental, range, and sustainability services. ManTech supports major national missions, such as military readiness and wellness, 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. 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: failure to obtain option awards, task orders, or funding under contracts; failure to realize the full amount of our backlog; renegotiation, modification, or termination of our contracts; or failure to perform in conformity with contract terms or our expectations. These and other risk factors are more fully discussed in the section entitled "Risk Factors" in ManTech's Annual Report on Form 10-K, and, from time to time, in ManTech's other filings with the Securities and Exchange Commission.

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ManTech International Corporation
Lynn Davis, 703-259-3636
[email protected]