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

CACI Awarded $23 Million Contract to Support U.S. Army Project Director, Signals Warfare

Continues CACI Support for Battlefield Systems Supplying Warfighter 'Eyes and Ears'

Arlington, VA, July 3, 2008 - CACI International Inc (NYSE:CAI), announced today that the U.S. Army has awarded the company a $23 million contract to continue its support for the Army Project Director, Signals Warfare (PD SW). CACI won this three-year award (one base year and two one-year option years) through the Strategic Services Sourcing (S3) contract vehicle the company holds with the Army. With the award, CACI continues to strengthen its core competency in command, control, communications, computers, intelligence, surveillance, and reconnaissance (C4ISR).

The PD SW provides products that include lightweight tactical signals intelligence and electronic warfare systems specifically designed to support Army troops during battlefield engagements. The organization also produces systems that enable warfighters to counter the threat of radio-controlled improvised explosive devices (IEDs).

CACI provides logistics, training, engineering, quick reaction capabilities, and testing support for the PD SW. With CACI's help, the PD SW assures that its systems are fielded effectively and on time. CACI expertise is also critical in helping the PD SW continually evolve its signals warfare solutions to meet the ever-changing IED threat.

Bill Fairl, Acting CACI President and Chief Executive Officer, said, "The importance of the U.S. Army's signals warfare programs continuously increases as the Army moves to create its future force and counter evolving terrorist threats. Signals warfare systems are a critical force-multiplier, giving commanders at all levels a multi-layered and multi-dimensional view of the battlefield. CACI is proud to support programs that not only provide the 'eyes and ears' for our troops on the ground, but also give them the technology to counter the threat of improvised explosive devices. We continue to focus our services and solutions on supporting the intelligence capabilities of the U.S. Army and the Intelligence Community and helping our government solve its most complex problems."

CACI International Inc provides the professional services and IT solutions needed to prevail in today's defense, intelligence, homeland security, and federal civilian government arenas. We deliver enterprise IT and network services; data, information, and knowledge management services; business system solutions; logistics and material readiness; C4ISR Solutions; cyber solutions; integrated security and intelligence solutions; and program management and SETA support services. CACI services and solutions help our federal clients provide for national security, improve communications and collaboration, secure the integrity of information systems and networks, enhance data collection and analysis, and increase efficiency and mission effectiveness. We add value to our clients' operations, increase their skills and capabilities, and enhance their missions. CACI is a member of the Fortune 1000 Largest Companies of 2007 and the Russell 2000 index. CACI provides dynamic careers for approximately 12,100 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; changes in interest rates; currency fluctuations; 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, based on a change in spending patterns, or 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, (iii) competition for task orders under Government Wide Acquisition Contracts ("GWACs") and/or schedule contracts with the General Services Administration; and (iv) accounting for convertible debt instruments; 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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Corporate Communications and Media:

Jody Brown, Executive Vice President, Public Relations

(703) 841-7801, jbrown@caci.com

Investor Relations:

David Dragics, Senior Vice President, Investor Relations

(866) 606-3471, ddragics@caci.com