FAIRFAX, Va., June 4, 2013 (GLOBE NEWSWIRE) -- ManTech International Corporation (Nasdaq:MANT) was awarded a contract by the Space and Naval Warfare Systems Center (SSC) Atlantic to provide full lifecycle support for command, control, and decision support systems, primarily focused on the decision superiority portfolio, for SSC Atlantic customers worldwide. The indefinite delivery, indefinite quantity, multiple-award contract was awarded to 15 companies and is valued at $899.8 million with a 1-year base period and four 1-year options. Under this contract, ManTech may perform a wide range of information system lifecycle and decision superiority portfolio services supporting SSC Atlantic's naval, joint, national, and coalition customers. Services may include tactical data software and hardware integration, integration of command and control systems, engineering of information interfaces to support the decision-making process, and C4ISR systems of systems integration and testing, among others. "Decision superiority is key to winning in today's multi-faceted battlespace," said Daniel J. Keefe, president and chief operating officer of ManTech's Technical Services Group. "ManTech has extensive experience providing lifecycle support to C4ISR and other decision superiority systems, and we look forward to leveraging this experience in support of our SPAWAR and other government customers." 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 (FBI); 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 command, control, communications, computers, intelligence, surveillance and reconnaissance (C4ISR) solutions and services; cyber security; global logistics support; information technology (IT) modernization and sustainment; intelligence/counter-intelligence solutions and support; systems engineering; test and evaluation; environmental, range and sustainability services; and healthcare analytics and IT. 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. 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.