BURLINGTON, MA, January 28, 2008 -– Cognos® (NASDAQ: COGN) (TSX: CSN), the world leader in business intelligence and performance management solutions, today announced that Omnicom Group Inc. (NYSE: OMC) has selected Cognos as a preferred vendor of software and services and is continuing to successfully implement Cognos enterprise planning and reporting capabilities.

Omnicom is a strategic holding company that manages a portfolio of global market leaders. Its companies operate in the disciplines of advertising, marketing services, specialty communications, interactive/digital media and media buying services. The diversity of Omnicom’s growing business operations required a global solution that could extend the company’s existing financial best-practices and business systems, automate financial planning and enable streamlined, self-service reporting for its agencies worldwide.

Following a competitive review and a successful pilot, Omnicom selected Cognos’ enterprise planning and reporting capabilities to help automate financial planning processes and simplify reporting with Web-based solutions. Key factors in the decision included the software’s ease of use, robust functionality and ability to scale, as well as the global reach and associated supporting infrastructure delivered by Cognos Services.

Through the pilot implementation, a selection of Omnicom agencies previewed the ability to use Cognos Planning, coupled with Cognos’ reporting capabilities, to quickly pull data from financial systems and provide business managers with increased time to focus on strategic analysis of business activities. During this pilot, Cognos Services partnered with the agencies to build enterprise planning models in the areas of salary, headcount and P&L expenses.

“We have an outstanding team of finance professionals across our agencies that excel at financial planning and analysis,” said Daniel Bearison, Director, Financial Planning, Omnicom Group Inc. “By adding Cognos software and services they have world-class solutions available to them to enhance their financial planning processes and support their business.”

“Omnicom is a world leader that has already achieved a remarkable level of business success,” said Dave Laverty, senior vice-president and CMO, global marketing, Cognos. “We are extremely pleased to be working with them as their performance management partner to extend their existing best-practices with new Cognos planning and reporting capabilities. We look forward to working with Omnicom to help further these best-practices and applications across the enterprise.”

Enterprise planning and reporting are key capabilities of the Cognos Performance Management System, which combines technology, best practices, analytical applications and solutions, and a broad network of partners into a single performance management solution for customers.

About Omnicom Group Inc.:

Omnicom Group Inc. (NYSE-OMC) (www.omnicomgroup.com) is a leading global marketing and corporate communications company. Omnicom’s branded networks and numerous specialty firms provide advertising, strategic media planning and buying, direct and promotional marketing, public relations and other specialty communications services to over 5,000 clients in more than 100 countries.

About Cognos:

Cognos, the world leader in business intelligence and performance management solutions, provides world-class enterprise planning and BI software and services to help companies plan, understand and manage financial and operational performance.

Cognos brings together technology, analytical applications, best practices, and a broad network of partners to give customers a complete performance system. The Cognos performance system is an open and adaptive solution that leverages an organization’s ERP, packaged applications, and database investments. It gives customers the ability to answer the questions -- How are we doing? Why are we on or off track? What should we do about it? – and enables them to understand and monitor current performance while planning future business strategies.

Cognos serves more than 23,000 customers in more than 135 countries, and its top 100 enterprise customers consistently outperform market indexes. Cognos 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.

Cognos and the Cognos logo are trademarks or registered trademarks of Cognos Incorporated in the United States and/or other countries. All other names are trademarks or registered trademarks of their respective companies.