PARIS, France, February 9, 2006 - Dassault Systemes (DS), a world leader in 3D and Product Lifecycle Management (PLM) solutions, reported financial results for both the fourth quarter and full year ended December 31, 2005.

Fourth Quarter and Full Year Highlights:
• Strong Growth Across Software and Services and Core Margin Improvement Drove Fourth Quarter and Full Year Financial Performance
• 2005 Total Revenue up 17% on GAAP and up 18% on Non-GAAP Basis
• 2005 EPS Up 10% on GAAP and Up 17% on Non-GAAP Basis
• DS Extends PLM Market Leadership With Further Market Share Gain of 1 Percentage Point in 2005; DS Adds 8 Percentage Points Over 2001-2005 Period
• DS Reconfirms 2006 Financial Objectives