News Release
CACI International Inc 1100 North Glebe Road Arlington Virginia 22201

CACI Chairman, President, and CEO Dr. J.P. (Jack) London Receives Earle C. Williams Leadership in Technology Award
CACI Board Member John M. Toups Also Honored for Lifetime Achievement

Arlington, VA, November 18, 2004 CACI International Inc (NYSE:CAI) announced today that Chairman, President, and Chief Executive Officer Dr. J.P. (Jack) London has been presented with the Northern Virginia Technology Council's Earle C. Williams Leadership in Technology Award. Additionally, CACI Board member John M. Toups was presented with the council's Lifetime Achievement Award. As the membership and trade association for the technology community in Northern Virginia, the Northern Virginia Technology Council is the largest technology council in the nation. It has more than 1,100 member companies representing some 160,000 employees. The awards were announced on November 15 at the Hilton in McLean, Virginia.

The Leadership in Technology Award, named for one of the region's early technology executives, Earle C. Williams, is conferred annually on an individual who has made significant contributions to the advancement of the technology sector in Northern Virginia. Under London's direction, CACI has grown from a small professional services consulting firm to become one of the nation's top information technology providers. In turn, CACI's success has had a dramatic impact on the development and prosperity of the Northern Virginia technology business community. The company is one of the largest technology employers in the region and has contributed significantly to the area's reputation for innovative technology solutions.

The Lifetime Achievement Award, presented for only the fourth time in the council's history, honors the seminal role John Toups has played in Northern Virginia's technology sector since 1958. Founder and CEO of a civil engineering firm that merged with the McLean, Virginia-based Planning Research Corporation (PRC) in 1970, Toups went on to become President and CEO of PRC in 1977. He currently serves on the board of directors for four major publicly traded companies, including CACI.

"It is a pleasure to accept the Earle C. Williams Leadership in Technology Award on behalf of CACI employees," London said. "Watching Northern Virginia take its place as a global technology hub and a true center of excellence has certainly been very gratifying. I am happy to have played a small part in Northern Virginia's evolution. We are also proud to have John Toups on our Board of Directors, and thank him for his contributions to CACI's success and his support for the region's growth and prosperity."

CACI International Inc provides the IT and network solutions needed to prevail in today's new era of defense, intelligence, and e-government. From systems integration and managed network solutions to knowledge management, engineering, simulation, and information assurance, we deliver the IT applications and infrastructures our federal customers use to improve communications and collaboration, secure the integrity of information systems and networks, enhance data collection and analysis, and increase efficiency and mission effectiveness. Our solutions lead the transformation of defense and intelligence, assure homeland security, enhance decision-making, and help government to work smarter, faster, and more responsively. CACI, a member of the Russell 2000 and S&P SmallCap 600 indices, provides dynamic careers for approximately 9,400 employees working in over 100 offices in the U.S. and Europe. CACI is the IT provider for a networked world. Visit CACI on the web at

There are statements made herein which do not address historical facts and, therefore could be interpreted to be forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Such statements are subject to factors that could cause actual results to differ materially from anticipated results. The factors that could cause actual results to differ materially from those anticipated include, but are not limited to, the following: regional and national economic conditions in the United States and the United Kingdom, including conditions that result from terrorist activities or war; failure to achieve contract awards in connection with recompetes for present business and/or competition for new business; the risks and uncertainties associated with client interest in and purchases of new products and/or services; continued funding of U.S. government or other public sector projects in the event of a priority need for funds, such as homeland security, the war on terrorism or rebuilding Iraq; government contract procurement (such as bid protest, small business set asides, etc.) and termination risks; the results of government investigations into allegations of improper actions related to the provision of services in support of U.S. military operations in Iraq; the results of the appeal of CACI International Inc ASBCA No. 53058; individual business decisions of our clients; paradigm shifts in technology; competitive factors such as pricing pressures and/or competition to hire and retain employees; material changes in laws or regulations applicable to our businesses, particularly in connection with (i) government contracts for services, (ii) outsourcing of activities that have been performed by the government, and (iii) competition for task orders under Government Wide Acquisition Contracts ("GWACs") and/or schedule contracts with the General Services Administration; our own ability to achieve the objectives of near term or long range business plans; and other risks described in the company's Securities and Exchange Commission filings.

# # #

For investor information contact:

David Dragics
Vice President, Investor Relations
(703) 841-7835

For other information contact:

Jody Brown
Senior Vice President, Public Relations
(703) 841-7801