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

CACI Awarded $150 Million Contract to Modernize Maintenance Applications for Naval Sea Systems Command

New Work Consolidates 15 Maintenance Contracts for Information Technology Activities at Naval Facilities Across the Nation

Arlington, VA, September 2, 2008 - CACI International Inc (NYSE:CAI), announced today that it has been awarded a prime $150 million task order by the U.S. Navy's Naval Sea Systems Command (NAVSEA) to modernize maintenance applications used at shipyards and maintenance centers through information technology (IT) upgrades and software development. The five-year contract was awarded under the Seaport-e contract vehicle with the goal of saving infrastructure costs and enhancing the combat readiness and mission capability of the fleet. The award effectively doubles CACI's current maintenance legacy work for the Navy and expands the company's development of its business system solutions functional core competency.

As one of its key mission-critical responsibilities, NAVSEA is charged with maintaining the Navy's ships and their systems. The work awarded through this task order will consolidate approximately 15 maintenance contracts for IT activities at various naval facilities. This provides the Navy with a single source for modernizing ship maintenance applications, developing new maintenance technologies and rolling applications out to new locations, and making the entire maintenance process more efficient and economical.

CACI's business system solutions provide capabilities that address the full spectrum of requirements in the financial, procurement, human resources, and supply chain domains. The solutions employ an integrated cross-functional approach to maximize investments in existing systems, while leveraging the potential of advanced technologies to implement new, high-payback solutions. CACI's key offerings include services, consulting, and software integration that support the full lifecycle of commercial technology implementations from blueprint through application sustainment.

According to Bill Fairl, CACI's President of U.S. Operations, "We're very pleased that this new award with the Naval Sea Systems Command dramatically expands our presence and enhances our 15-year relationship with this valued client. We're honored that they want to grow our partnership and trust us to do the right thing in the ship repair and maintenance arena."

Said CACI President and CEO Paul Cofoni, "The U.S. Navy was CACI's very first military customer, and we have ongoing Navy legacy programs that date back to the early 1960s. So it's a strong validation of our work that CACI can play such an integral role in helping the Navy maintain its ships and get them back to sea, ready to perform their vital missions and help keep our nation safe."

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