Fairfax, Virginia, September 1, 2015

CGI (NYSE: GIB) (TSX: GIB.A) today announced that it has won a five-year (one base plus four option years) contract with the U.S. Army Sustainment Command (ASC) for software development and support of the Integrated Materiel Management Operations Systems (IMMOS) application suite. The base year has been incrementally funded at US$3.1 million. If all options are exercised, the contract value will be US$55.8 million with a completion of date July 31, 2020. The work will be performed in Alexandria, Virginia and at multiple locations within the continental United States and overseas.

From warfighting to humanitarian relief, the Army must be able to track and identify equipment stored and serviced at designated facilities worldwide. ASC uses the IMMOS suite to perform asset tracking and maintenance management tasks for army prepositioned stocks, helping to assure that deploying units receive the right equipment at the right time to complete their missions.

CGI developed and has supported IMMOS logistics software applications since 1994. During this time, system innovations have included real time Care of Supplies in Storage (COSIS) and warehouse management functionality; radio-frequency identification tag and network management tools; business intelligence; accountability, inventory and maintenance reporting; and automated equipment hand-off and receipt-back capability.

“We are gratified to see our logistics systems expertise recognized and intend to continue supporting this vital client with high quality service and support for years to come,” said Pat Dougherty, Senior Vice President, CGI.

About CGI

Founded in 1976, CGI Group Inc. is the fifth largest independent information technology and business process services firm in the world. Approximately 68,000 professionals serve thousands of global clients from offices and delivery centers across the Americas, Europe and Asia Pacific, leveraging a comprehensive portfolio of services including high-end business and IT consulting, systems integration, application development and maintenance, infrastructure management as well as a wide range of proprietary solutions. With annual revenue in excess of C$10 billion and an order backlog of approximately C$20 billion, CGI shares are listed on the TSX (GIB.A) and the NYSE (GIB). Website: www.cgi.com.

Forward-Looking Statements

All statements in this press release that do not directly and exclusively relate to historical facts constitute “forward-looking statements” within the meaning of that term in Section 27A of the United States Securities Act of 1933, as amended, and Section 21E of the United States Securities Exchange Act of 1934, as amended, and are “forward-looking information” within the meaning of Canadian securities laws. These statements and this information represent CGI’s intentions, plans, expectations and beliefs, and are subject to risks, uncertainties and other factors, of which many are beyond the control of the Company. These factors could cause actual results to differ materially from such forward-looking statements or forward-looking information. These factors include but are not restricted to: the timing and size of new contracts; acquisitions and other corporate developments; the ability to attract and retain qualified members; market competition in the rapidly evolving IT industry; general economic and business conditions; foreign exchange and other risks identified in the press release, in CGI’s annual and quarterly Management’s Discussion and Analysis (“MD&A”), in CGI’s Annual Report, in CGI’s Annual Report on Form 40-F filed with the U.S. Securities and Exchange Commission (filed on EDGAR at www.sec.gov), and in the Company’s Annual Information Form filed with the Canadian securities authorities (filed on SEDAR at www.sedar.com), as well as assumptions regarding the foregoing. The words “believe,” “estimate,” “expect,” “intend,” “anticipate,” “foresee,” “plan,” and similar expressions and variations thereof, identify certain of such forward-looking statements or forward-looking information, which speak only as of the date on which they are made. In particular, statements relating to future performance are forward-looking statements and forward-looking information. CGI disclaims any intention or obligation to publicly update or revise any forward-looking statements or forward-looking information, whether as a result of new information, future events or otherwise, except as required by applicable law. Readers are cautioned not to place undue reliance on these forward-looking statements or on this forward-looking information.

For more information:

Investors
Lorne Gorber
Executive Vice-President, Global Communications and
Investor Relations
lorne.gorber@cgi.com
+1-514-841-3355

Media
Linda Odorisio
Vice-President, Global Communications
linda.odorisio@cgi.com
+1-703-267-8118