Dassault Systèmes Reports Second Quarter Results with Strong EPS Growth

Paris, France, July 29, 2010 ─ Dassault Systèmes (DS) (Euronext Paris: #13065, DSY.PA) reports IFRS unaudited financial results for the second quarter and six months ended June 30, 2010. These results were reviewed by the Company’s Board of Directors on July 27, 2010.

Second Quarter Summary Highlights

• 2010 second quarter earnings and operating margin above DS’ objectives

• Net operating cash flow of €132 million

• EPS growth of 82% reaching €0.40 (IFRS) and 57% reaching €0.58 (Non-IFRS)

• IBM PLM integration well on track

• Expanding into new addressable market with Exalead acquisition

• DS upgrades 2010 objectives to reflect recent acquisitions, currency fluctuations and Q2 overachievement