CACI International to Release FY17 Annual Guidance After Market Close on June 22, 2016

To Hold Conference Call and Webcast Before Market Open on June 23, 2016

CACI International Inc (NYSE MKT: CACI) will issue its Fiscal Year 2017 (FY17) Annual Guidance at 4:00 pm Eastern Time on Wednesday, June 22, 2016. Following the release of this information, we have scheduled a conference call for Thursday, June 23, 2016 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 1-888-771-4371, confirmation code 42651103. 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’s Investor Day 2016

Join CACI’s senior leadership team on June 30, 2016, at the New York Stock Exchange, as they provide in-depth presentations on our strategy for growth, our operations goals and highlights, and a close look at the market-focused strategy that is driving our success. Throughout the investor day, you will have an opportunity to see demonstrations of some of CACI’s most interesting, innovative, and compelling solutions in several key market areas. For more information, contact us at [e-mail] or call Cassandra Mares at 480-614-3020.

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 20,000 employees worldwide. Visit www.caci.com.

CACI-Financial

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CACI International IncCorporate Communications and Media:Jody Brown, Executive Vice President, Public Relations703-841-7801, [e-mail] Relations:David Dragics, Senior Vice President, Investor Relations866-606-3471, [e-mail]