NASA Langley Research Center (LaRC) Office of Procurement has awarded the GenTech Partners joint venture team of ManTech International Corporation (NASDAQ: MANT) and Genex Systems, LLC, a prime contract to provide administrative, media and professional support services to organizations across the research center. Langley Administrative, Media, and Professional Services (LAMPS) is a single-award, indefinite-delivery/indefinite-quantity (IDIQ) contract that has a five-year ordering period and a total ceiling value of $94 million. NASA Langley Research Center is one of ten NASA centers and contributes to NASA’s strategic vision. Langley’s mission is to “Deliver on today’s commitments and prepare for tomorrow’s opportunities”. Under the LAMPS contract, ManTech will provide LaRC with a wide range of management, media and professional support to assist LaRC in providing integrated professional services across the enterprise with increased efficiency and reduced costs. "We have established a strong working relationship with our joint venture partner Genex and this award is recognition of the high-quality support our two companies bring to the NASA community,” said Terry M. Ryan, president and chief operating officer of ManTech’s Systems Engineering and Advanced Technology group (SEAT). "This is ManTech’s first NASA Langley award and our people look forward to supporting the LaRC mission with exceptional service.” 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 and Justice, including the Federal Bureau of Investigation; NASA and the space community; the National Oceanic and Atmospheric Administration; and other U.S. federal government customers. We provide support to critical national security programs through 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 modernization and sustainment, systems engineering, and test and evaluation. 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. 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 those we anticipate include, but are not limited to, adverse changes in U.S. government spending priorities; adverse changes in future levels of expenditures for programs we support caused by budgetary pressures facing the federal government and changing mission priorities; the failure to obtain option awards, task orders or funding under the contract; failure to maintain strong relationships with our joint venture partner; risk of contract performance, modification, or termination; the failure to maintain strong relationships with other contractors; and risks associated with complex U.S. government procurement laws and regulations. These and other risk factors are more fully discussed in the section entitled “Risks Factors” in ManTech’s Annual Report on Form 10-K, filed with the Securities and Exchange Commission on Feb. 24, 2012, and from time to time in ManTech’s other filings. The forward-looking statements included in this news release 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.