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

CACI Awarded $47 Million Contract to Support Center for Excellence in Disaster Management and Humanitarian Assistance

Continues Company's Ongoing Leadership in Supporting Smart Power

Arlington, VA, September 10, 2009 - CACI International Inc (NYSE:CACI) announced today it has been awarded a prime contract with a ceiling value of $47 million, if all options are exercised, to support the Center for Excellence in Disaster Management and Humanitarian Assistance (COE-DMHA). The award, for one base year and four option years, continues CACI's work in supporting the COE-DMHA's mission of educating, training, conducting research, and assisting in responding to natural and manmade disasters in the Asia Pacific Region. The effort is closely integrated with CACI's capabilities in smart power – the integration of the "soft power" of development and diplomacy with the "hard power" of military strength.

The COE-DMHA enhances civil-military and interagency coordination through the research and development of concepts that educate and train partner nations in international disaster management and humanitarian assistance operations. The Center seeks contract services to establish and sustain partnerships with such U.S. and international partners as USAID and its Office of Foreign Disaster Assistance, the United Nations Office for the Coordination of Humanitarian Affairs, and Department of Defense and civilian organizations such as CACI. CACI has worked with COE-DMHA in relief efforts ranging from support during the 2004 Indonesia tsunami, to the 2005 earthquake in Pakistan and the 2006 mudslide in the Philippines.

For this contract, CACI will support the COE-DMHA in a wide array of efforts, including research and concept development; education projects; training; international disaster preparedness, mitigation, management, and response; humanitarian assistance; and management of the consequences of terrorism.

Bill Fairl, CACI's President of U.S. Operations, said "We are proud that CACI is able to continue its role in supporting the efforts of the Center for Excellence in Disaster Management and Humanitarian Assistance. The work we provide goes beyond aiding nations in the Asia Pacific Region – it helps establish the true picture of America as a caring country, deeply involved in world affairs."

According to CACI President and CEO Paul Cofoni, "Finding the right balance between hard and soft power is integral to the use of smart power and all the positive benefits derived from its application. We're pleased that the support CACI provides to COE-DMHA through this award is such an important component in helping our customers focus on how America presents itself to the rest of the world."

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