CACI International to Release FY16 Annual Guidance After Market Close on June 24, 2015

To Hold Conference Call and Webcast Before Market Open on June 25, 2015

CACI International Inc (NYSE MKT: CACI) will issue its Fiscal Year 2016 (FY16) Annual Guidance at 4:00 pm Eastern Time on Wednesday, June 24, 2015. Following the release of this information, we have scheduled a conference call for Thursday, June 25, 2015 at 8:30 am 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 website at www.caci.com at the scheduled time. You may also dial in to 1-877-303-9143, confirmation code 42188597. 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 information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. A Fortune magazine World’s Most Admired Company in the IT Services industry, CACI is a member of the Fortune 1000 Largest Companies, the Russell 2000 Index, and the S&P SmallCap600 Index. CACI provides dynamic careers for over 16,700 employees in 120 offices worldwide. Visit www.caci.com.

CACI-Financial

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CACI International IncCorporate Communications and Media:Jody Brown, Executive Vice President, Public [e-mail] Relations:David Dragics, Senior Vice President, Investor [e-mail]