Anteon Sets Earnings Release Date for Q1 2005 Results

    Business Editors/High-Tech Editors/Government Writers

    FAIRFAX, Va.--(BUSINESS WIRE)--April 14, 2005--Anteon International Corporation (NYSE:ANT) today announced that it will release its first-quarter fiscal 2005 financial results on April 28, 2005, at 7:30 a.m. EDT. Following the release of the information, the Company has scheduled a conference call for 10:00 a.m. EDT.
    Hosted by Anteon senior management, the conference call will be webcast simultaneously through a link on the Investor Relations section of the Company's Website, located at www.anteon.com. A replay of the conference call also will be available by telephone starting at 1:00 p.m. EDT through May 3, 2005, at (877) 519-4471 or (973) 341-3080 (international). The conference call identification number is 5958490. A replay of the webcast will be available on the Anteon Website from approximately one hour after the conclusion of the conference call through May 28, 2005.

    About Anteon

    Anteon, headquartered in Fairfax, Virginia, is a leading systems integrator, providing information technology and engineering solutions to the federal government and international sectors. Anteon designs, integrates, maintains and upgrades state-of-the-art systems for national defense, intelligence, emergency response and other high priority government missions. Anteon also provides many of its government clients with the systems analysis, integration and program management skills necessary to manage the development and operations of their mission critical systems. The Company was founded in 1976 and has grown to currently employ over 9,100 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. For more information, visit www.anteon.com.

    Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995:

    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.

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CONTACT: Anteon International Corporation, Fairfax Mark Meudt, 703-246-0525 mmeudt@anteon.com

KEYWORD: DISTRICT OF COLUMBIA VIRGINIA INDUSTRY KEYWORD: SOFTWARE NETWORKING HARDWARE AEROSPACE/DEFENSE GOVERNMENT CONFERENCE CALLS EARNINGS SOURCE: Anteon International Corporation

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