Anteon Announces Calendar for Second Quarter Investor Conferences

Anteon Announces Calendar for Second Quarter Investor Conferences

    Business Editors/Technology Writers

    FAIRFAX, Va.--(BUSINESS WIRE)--May 4, 2005--Anteon International Corporation (NYSE:ANT), a leading information technology and systems engineering and integration company, today announced its second quarter schedule for investor conferences. Anteon is scheduled to speak at the following investor conferences and events:

--	Stanford Washington Research Group 2005 Institutional Policy Conference, May 6, 2005, in Washington, D.C.
--	Piper Jaffray Seventh Annual Technology Conference, May 11, 2005 in New York, NY
--	JP Morgan 33rd Annual Technology Conference, May 17, 2005 in San Francisco, CA
--	Bear, Stearns & Co. Inc. 16th Annual Technology Conference, June 8, 2005 in New York, NY
--	Stephens Information Technology and Services Conference, June 9, 2005 in New York, NY

    All investor conferences listed will be web-cast. Please contact each financial institution for additional details. A link for more information can be found on the Anteon web site at www.anteon.com. Note that all dates are tentative and subject to change.

    About Anteon

    Anteon, headquartered in Fairfax, Virginia, is a leading systems integrator, providing information technology and engineering solutions to 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 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 almost 9,200 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.

--30--JM/ph*

CONTACT: Anteon International Corporation, Fairfax Press: Mark Meudt, 703-246-0525 mmeudt@anteon.com or Investors: Dennis Kelly, 703-246-0318 dkelly@anteon.com

KEYWORD: VIRGINIA INDUSTRY KEYWORD: HARDWARE AEROSPACE/DEFENSE GOVERNMENT SOFTWARE NETWORKING PRODUCT SOURCE: Anteon International Corporation

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