Cognos Appoints Curtis Gekle Senior Vice President, Americas Field Operations

Ottawa, Ontario and Burlington, Massachusetts, May 2, 2005 - Cognos (Nasdaq: COGN; TSX: CSN), the world leader in business intelligence and corporate performance management (CPM),today announced that effective immediately Curtis Gekle has been promoted to senior vice president, Americas field operations. Mr. Gekle will report directly to Tony Sirianni, Cognos senior vice president, worldwide field operations. In his new position, Mr. Gekle will be responsible for sales, services, support and alliances throughout North America and Latin America.

Previously, Mr. Gekle served as vice president, sales operations for the Americas. A seventeen-year veteran of Cognos, Mr. Gekle brings two decades of enterprise software experience to this position, holding increasingly senior positions within a variety of areas of the Cognos field organization over that period. Throughout his career with Cognos, Mr. Gekle has demonstrated a keen understanding of customer needs and trends.

“Curtis brings to this position a passion for customer success, unquestionable integrity, and a great track record,” said Mr. Sirianni. “Under his leadership, Cognos has established a tremendous North American sales force. I know Curtis will continue to deliver world-class results for Cognos, our customers, and our shareholders, in his
new role.”

About Cognos:
Cognos, the world leader in business intelligence and corporate performance management, delivers software and services that help companies drive, monitor and understand corporate performance.

Cognos delivers the next level of competitive advantage - Corporate Performance Management (CPM) - achieved through the strategic application of BI on an enterprise scale. Our integrated CPM solution helps customers drive performance through planning; monitor performance through scorecarding; and understand performance through business intelligence.

Cognos serves more than 23,000 customers in over 135 countries. Cognos enterprise business intelligence and performance management solutions and services are also available from more than 3,000 worldwide partners and resellers. For more information, visit the Cognos Web site at http://www.cognos.com.