ANTEON AWARDED $10 M CONTRACT AMENDMENT.

Anteon International Corporation (NYSE: ANT), an information technology and systems engineering and integration company, announced recently that it has received a contract amendment with an estimated value of $10 million from the Naval Surface Warfare Center - Carderock Division. This latest award brings the total estimated value of this five-year (December 1997 - December 2002) contract to $49.5 million. The estimated value of the original contract was $25 million. Under this contract, Anteon provides engineering, analytical, logistical and technical support services to the Carderock Division Surface Ships Engineering Station and combat support systems worldwide.

Joseph M. Kampf, Anteon President and CEO, stated, "We are very proud of our work in support of the Naval Surface Warfare Center - Carderock Division. We have supported this contract for over 12 years and this latest contract modification is further evidence of the customer's continued confidence in "Team" Anteon."

Anteon, headquartered in Fairfax, Virginia, is a leading information technology and systems engineering and integration company that has provided support to the U.S. federal government and international sectors for over 25 years. With 2001 revenue of $715 million, the Company has more than 5,400 employees in over 80 offices worldwide and frequently ranks among the top information technology integrators based on independent surveys.