FAIRFAX, Va., Dec. 03, 2015 (GLOBE NEWSWIRE) -- ManTech International Corporation (Nasdaq:MANT) has been awarded a contract by the United States Air Force to provide full-spectrum security services to protect mission-critical programs. The cost-plus contract has a 1-year base period and 9 option years, valued at $407 million. "ManTech is proud to continue providing lifecycle program protection to support the U.S. Air Force's critical mission," said L. William Varner, president of ManTech's Mission, Cyber & Intelligence Solutions Group. "We have protected some of our nation's most critical information for more than four decades and continue to make program support a priority that spans across all security disciplines." 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.