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

CACI Awarded $72 Million Prime Contract to Provide Information Technology Support Services for U.S. Naval Criminal Investigative Service

New Work Will Establish Worldwide, Fully Functional Information Technology Capability for NCIS

Arlington, VA, August 31, 2009 - CACI International Inc (NYSE:CACI) announced today that it has been awarded a new, $72 million prime contract to provide information technology support services for the U.S. Naval Criminal Investigative Service (NCIS). The value of this award was previously reported as part of an August 3, 2009 news release. The performance-based contract is for one base year, three option years, and one award year. The company will provide technical support and services, expand support into new optional areas, and assist NCIS in the development of new processes, procedures, and program management principles. With the award, CACI continues to grow its core competency in enterprise information technology and network services.

NCIS is the primary law enforcement and counterintelligence arm of the United States Department of the Navy. It works closely with other local, state, federal, and foreign agencies to counter and investigate the most serious crimes involving terrorism, espionage, computer intrusion, homicide, rape, child abuse, arson, procurement fraud and more. The service is the Navy's primary source of security for the service members, ships, aircraft, and resources of the nation's seagoing expeditionary forces worldwide.

CACI will support the service's networks, servers, software engineering, application engineering, and all personal and network-wide communications for NCIS headquarters and approximately 160 locations around the globe. The company will make extensive use of the Information Technology Infrastructure Library (ITIL) to provide a framework of best practices to assure its delivery of IT services.

Bill Fairl, CACI's President of U.S. Operations, said "We are very pleased that this new work enables CACI to form a true partnership with the Naval Criminal Investigative Service and help it deliver support and services that are mission and customer-service focused. We are extremely proud to be a member of the NCIS team."

According to CACI President and CEO Paul Cofoni, "With this contract, CACI's support of the U.S. Navy is further enhanced. For the first time, we can provide the Department of the Navy with comprehensive expertise in the areas of law enforcement, counterintelligence, and counterterrorism worldwide."

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 and the Russell 2000 index. CACI provides dynamic careers for approximately 12,500 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 and www.asymmetricthreat.net.

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 a prolonged recession; terrorist activities or war; changes in interest rates; currency fluctuations; significant fluctuations in the equity markets; 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; or an economic stimulus package; government contract procurement (such as bid protest, small business set asides, loss of work due to organizational conflicts of interest, 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 government audit and reviews conducted by the Defense Contract Audit Agency or other governmental entities with cognizant oversight; 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); market speculation regarding our continued independence; 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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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