Anteon Awarded $18.7M Contract from U.S. Air Force; Support for Weapon System Life Cycle Management and USAF Expeditionary Logistics for the 21st Century.

FAIRFAX, Va. -- Anteon International Corporation (NYSE:ANT), a leading information technology, systems integration and engineering services company, today announced that it has been awarded a contract by the U.S. Air Force Installation and Logistics Division, Directorate of Innovation and Transformation (AF/ILI) to provide support services and software integration for U.S. Air Force weapon system life cycle management solutions. The estimated value of this contract, if all options are exercised, is $18.7 million over a 34 month period of performance.

"Anteon's work on this contract award will help the U.S. Air Force enhance their mission readiness and improve aircraft availability rates. We have a strong legacy of supporting Air Force expeditionary logistics requirements around the world," stated Dan Johnson, Anteon chief operating officer. "Our experience providing trusted weapon system life cycle management solutions throughout the USAF eLOG21 arena has positioned Anteon as a key partner in the transformation of Air Force logistics in the 21st century."

The Anteon team will migrate data and develop, deploy and integrate an improved product data management (PDM) configuration management process for weapon systems product data. The Anteon team will provide functional and technical support to the user communities within the Air Force, expanding the database and user community by incorporating data on additional weapon systems. Work will be performed in Washington, D.C. and at Hill, Tinker, Warner Robbins, and Wright Patterson Air Force Bases.

About Anteon

Anteon, headquartered in Fairfax, Virginia, is a leading information technology company serving the U.S. Federal government and international customers. Anteon designs, integrates, maintains, and upgrades state-of-the-art systems for national defense, intelligence, homeland security, and other high priority government missions. Anteon provides numerous government clients with the systems integration, strategy and program management, systems engineering, operations services, and simulation and training skills necessary to manage the development and operations of their mission critical systems. The Company was founded in 1976 and currently employs over 9,500 employees in more than 100 offices worldwide. Anteon consistently ranks among the top information technology integrators based on independent surveys, and has been named to the Forbes List of the 400 Best Big Companies in 2005, earning distinction on the Forbes Platinum List. Anteon is listed on the Standards & Poor's MidCap 400 Index. For more information, visit www.anteon.com.

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The statements contained in this release which are not historical facts are forward-looking statements that are subject to risks and uncertainties that could cause actual results to differ materially from those set forth in, or implied by, forward-looking statements. The Company has tried, whenever possible, to identify these forward-looking statements using words such as "projects," "anticipates," "believes," "estimates," "expects," "plans," "intends," and similar expressions. Similarly, statements herein that describe the Company's business strategy, outlook, objectives, plans, intentions or goals are also forward-looking statements. The risks and uncertainties involving forward- looking statements include the Company's dependence on continued funding of U.S. government programs, government contract procurement and termination risks, including risks associated with bid protests, and other risks described in the Company's Securities and Exchange Commission filings. These statements reflect the Company's current beliefs and are based upon information currently available to it. Be advised that developments subsequent to this release are likely to cause these statements to become outdated with the passage of time. The Company does not currently intend, however, to update the guidance provided today prior to its next earnings release.