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

CACI Awarded $125 Million Prime Contract to Provide Software Engineering Support for Deployed U.S. Army Systems

Continuing Work with Communications-Electronics Command Helps Warfighters In-theater Enhance Mission Readiness, Efficiency, and Safety

Arlington, VA, June 30, 2009 - CACI International Inc (NYSE:CACI) announced today that it has been awarded a $125 million prime contract to support the U.S. Army's Communications-Electronics Command's (CECOM) Fires Software Engineering Division (FSED) in providing software engineering support for fielded fire support systems. The award, for one base year and two option years, was competitively awarded under the Army's Strategic Services Sourcing (S3) contract vehicle. The work increases both the size and scope of CACI's software engineering business through its C4ISR (command, control, communications, computers, intelligence, surveillance, and reconnaissance) functional core competency. The task order brings the total amount of S3 awards to CACI to nearly $2 billion.

FSED is responsible for providing software engineering support for U.S. Army and other DoD organizations that are developing command and control, target acquisition, meteorological, fire direction, and fire control software intensive systems. The organization supports fielded fire support systems through software enhancement, maintenance, worldwide fielding, and post fielding support.

Team CACI consists of primary subcontractors Technology Service Corporation and Techrizon, which has supported FSED for over 30 years, and other key and essential members. The companies will provide system and software engineering support services for a variety of field artillery and fires systems including command and control, fire support, meteorological measuring systems, several variations of Firefinder Radar Systems, and Lightweight Counter Mortar Radar systems. The CACI team stands ready to support the Army's migration to emerging network-centric architectures in support of FSED's mission.

According to Bill Fairl, CACI's President of U.S. Operations, "We are pleased to work with a new client, the Fires Software Engineering Division, and continue the support that our partners have provided for some three decades. In addition, providing tactical software support for this award enhances our C4ISR footprint in the market."

CACI President and CEO Paul Cofoni said, "This new S3 task order indicates the high level of confidence the Army has in CACI's abilities to support the U.S. Armed Forces' most critical in-theater missions. We're gratified that the expertise our team provides will directly help the nation's warfighters operate worldwide with greater effectiveness and safety."

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 12,400 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 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.

# # #

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