Anteon Awarded $15.8M Contract to Support U.S. Navy Office of Naval Research Marine Corps Science and Technology Programs.

FAIRFAX, Va. -- Anteon International Corporation (NYSE:ANT)

Program management and engineering support to C4ISR, Mine
      Countermeasures, Logistics, Human Performance/Training and
     Survivability, Maneuver, and Firepower science and technology
                               programs.

Anteon International Corporation (NYSE:ANT), a leading information technology, systems integration, and engineering services company, today announced that it has been awarded a contract from the U.S. Navy's Office of Naval Research for the Expeditionary Maneuver Warfare and Combating Terrorism Department (ONR-30) and the Office of the Vice Chief of Naval Research. Anteon will provide program management and engineering services to the ONR-30 at its offices in Arlington, Virginia. The estimated value of this contract, if all options are exercised, is $15.8 million over a five-year period of performance.

"Anteon is supporting the R&D and advanced technology work done by the ONR and Marine Corps Science and Technology Programs office. We are providing key program management and engineering services support for missions critical to the fight against terrorism," stated Dan Johnson, Anteon chief operating officer.

ONR-30 is the principal agency within the Office of Naval Research for U.S. Marine Corps Science and Technology Programs. Its mission is to support the development of Naval Expeditionary Maneuver Warfare through the exploitation and subsequent application of science and technology. The agency is organized around multiple "thrust areas" - each of which seeks to develop and leverage advanced technologies for application - focusing on C4ISR, Mine Countermeasures, Logistics, Human Performance/Training and Survivability, Maneuver, and Firepower. Anteon will support each of these thrust areas with program management, engineering, analytical, and financial management services.

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 2006, 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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