CACI International to Release FY12 Annual Guidance at Market Close on June 29, 2011.

Conference Call and Webcast to Be Held Before Market Open on June 30, 2011

ARLINGTON, Va. -- CACI International Inc (NYSE: CACI) will issue its Fiscal Year 2012 (FY12) Annual Guidance at 4:00 p.m. Eastern Time on Wednesday, June 29, 2011. Following the release of this information, we have scheduled a conference call for Thursday, June 30, 2011 at 8:30 a.m. Eastern Time, during which members of our senior management team will be making a brief presentation followed by a question-and-answer session to discuss the guidance and management's performance expectations for the new fiscal year.

You can listen to the conference call and view accompanying exhibits over the Internet by logging on to CACI's Internet site at www.caci.com at the scheduled time. You may also dial in to 1-877-303-9143, confirmation code 67770499. Slides of the presentation will be available on our website during the call. A replay of the call will also be available over the Internet, and can be accessed through CACI's website (www.caci.com).

CACI provides professional services and IT solutions needed to prevail in the areas of defense, intelligence, homeland security, and IT modernization and government transformation. We deliver enterprise IT and network services; data, information, and knowledge management services; business system solutions; logistics and material readiness; C4ISR solutions and services; 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. CACI is a member of the Fortune 1000 Largest Companies and the Russell 2000 index. CACI provides dynamic careers for approximately 13,700 employees working in over 120 offices in the U.S. and internationally. Visit CACI on the web at www.caci.com and www.asymmetricthreat.net.

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