News Release
CACI International Inc 1100 North Glebe Road Arlington Virginia 22201
www.caci.com

CACI-NSR Receives 2007 James S. Cogswell Award from Defense Security Service

CACI Subsidiary One of Only 30 Facilities Out of Nearly 12,100 Cleared Department of Defense Contractors to Receive Prestigious Recognition

Arlington, VA, July 2, 2007 - CACI International Inc (NYSE:CAI) announced today that a company subsidiary, CACI-NSR, has been selected as one of the recipients of the 2007 James S. Cogswell Outstanding Industrial Security Achievement Award from the Defense Security Service (DSS). NSR, the former National Security Research, Inc., was acquired by CACI in 2005. The award is named in honor of the late Air Force Col. James S. Cogswell, head of the first unified office of industrial security within the Department of Defense (DoD). It is the most prestigious honor that DSS can bestow on a cleared facility for establishing and maintaining a security program that goes beyond requirements set by the National Industrial Security Program. Award winners are also evaluated by their success in providing leadership to other cleared facilities in setting exacting and high standards for security. The winning CACI subsidiary is one of only 30 facilities out of nearly 12,100 cleared DoD contractors, nationwide, to receive the award this year. The award was presented to representatives of CACI-NSR at the annual training seminar of the National Classification Management Society in Reno, Nevada, on June 20, 2007.

Each year the DSS assesses the effectiveness of the security systems and procedures in place to protect classified information in a facility. Winning the James S. Cogswell Award validates the strong commitment of CACI's corporate security and management teams to secure information vital to our homeland security and national defense. The company puts in place stringent requirements, restrictions, and other safeguards throughout the organization to prevent unauthorized disclosure of classified and proprietary information. This part of CACI's process involves active support and participation in maintaining an excellent security posture and an effective, ongoing security education and awareness program.

Paul Cofoni, CACI's President and Chief Executive Officer, said, "It's clear that winning this award from the Defense Security Service required a total team effort of extraordinary excellence and dedication by CACI management and the facility's security officer and work force. We're very proud of the honor that this CACI subsidiary has received and pleased at how the James S. Cogswell Award demonstrates the company's commitment to maintain the highest standards of security."

Dr. J.P. (Jack) London, CACI Chairman of the Board, said, "At CACI, security is always a top priority, a very important component of all the work we do within the company and how we serve the needs of our clients. The way our CACI-NSR team took these concerns to heart in winning this important award clearly validates how the company's mergers and acquisition program successfully brings on board companies who share our culture and our ongoing concern for security."

CACI International Inc provides the IT and network solutions needed to prevail in today's new era of national security, 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 national security and intelligence, assure homeland security, enhance decision-making, and help government to work smarter, faster, and more responsively. CACI is a member of the Fortune 1000 Largest Companies of 2007 and the Russell 1000 index. CACI provides dynamic careers for approximately 10,400 employees working in over 120 offices in the U.S. and Europe. CACI is the IT provider for a networked world. Visit CACI on the web at www.caci.com.

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; individual business decisions of our clients; paradigm shifts in technology; competitive factors such as pricing pressures and/or competition to hire and retain employees (particularly those with security clearances); 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.

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For investor information contact:

David Dragics
Senior Vice President, Investor Relations
(866) 606-3471
ddragics@caci.com

For other information contact:

Jody Brown
Executive Vice President, Public Relations
(703) 841-7801
jbrown@caci.com