Such forward-looking statements are based on DS management's current views and assumptions and involve known and unknown risks and uncertainties. Actual results or performances may differ materially from those in such statements due to a range of factors. In preparing such forward-looking statements, the Company has in particular assumed an average U.S. dollar to euro exchange rate of US$1.35 per €1.00 and an average Japanese yen to euro exchange rate of JPY125 to €1.00 for 2010; however, currency values fluctuate, and the Company’s results of operations may be significantly affected by changes in exchange rates. The Company has tried to factor in the potential impact of the current global economic environment on its 2010 third quarter and full year objectives, but conditions may not improve as the Company has anticipated or could worsen. Further the Company has assumed that its increased responsibility for its direct PLM sales, in particular resulting from the integration of the IBM PLM acquisition which was completed on March 31, 2010, and the resulting commercial and management challenges, will not cause it to incur substantial unanticipated costs and inefficiencies. The Company’s actual results or performance may also be materially negatively affected by the current global economic crisis, difficulties or adverse changes affecting its partners or its relationships with its partners, including the Company’s longstanding, strategic partner, IBM; new product developments and technological changes; errors or defects in its products; growth in market share by its competitors; and the realization of any risks related to the integration of IBM PLM within DS and of any newly acquired company and internal reorganizations. Unfavorable changes in any of the above or other factors described in the Company’s regulatory reports, including the Document de référence, as filed with the French “Autorité des marchés financiers” (AMF) on April 1, 2010, could materially affect the Company’s financial position or results of operations.

Non-IFRS Financial Information

Readers are cautioned that the supplemental non-IFRS (previously referred to as “adjusted IFRS”) information presented in this press release is subject to inherent limitations. It is not based on any comprehensive set of accounting rules or principles and should not be considered as a substitute for IFRS measurements. Also, the Company’s supplemental non-IFRS financial information may not be comparable to similarly titled non-IFRS measures used by other companies. Further specific limitations for individual non-IFRS measures, and the reasons for presenting non-IFRS financial information, are set forth in the Company’s annual report for the year ended December 31, 2009 included in the Company’s 2009 Document de référence filed with the AMF on April 1, 2010.

In the tables accompanying this press release the Company sets forth its supplemental non-IFRS figures for revenue, operating income, operating margin, net income and diluted earnings per share, which exclude the effect of adjusting the carrying value of acquired companies’ deferred revenue, stock-based compensation expense, the expenses for the amortization of acquired intangible assets and other income and expense, net (in each case, as explained respectively in the Company’s 2009 Document de référence filed with the AMF on April 1, 2010) and the income tax effect of the non-IFRS adjustments. The tables also set forth the most comparable IFRS financial measure and reconciliations of this information with non-IFRS information.

Information in Constant Currencies

When the Company believes it would be helpful for understanding trends in its business, the Company provides percentage increases or decreases in its revenue (in both IFRS as well as non-IFRS) to eliminate the effect of changes in currency values, particularly the U.S. dollar and the Japanese yen, relative to the euro. When trend information is expressed herein "in constant currencies", the results of the "current" period have first been recalculated using the average exchange rates of the comparable period in the preceding year, and then compared with the results of the comparable period in the preceding year.

About Dassault Systèmes

As a world leader in 3D and Product Lifecycle Management (PLM) solutions, Dassault Systèmes brings value to more than 115,000 customers in 80 countries. A pioneer in the 3D software market since 1981, Dassault Systèmes develops and markets PLM application software and services that support industrial processes and provide a 3D vision of the entire lifecycle of products from conception to maintenance to recycling. The Dassault Systèmes portfolio consists of CATIA for virtual product design - SolidWorks 3D for Professionals - DELMIA for virtual production - SIMULIA for realistic simulation - ENOVIA for global collaborative lifecycle management, and 3DVIA for online 3D lifelike experiences. Dassault Systèmes’ shares are listed on Euronext Paris (#13065, DSY.PA) and Dassault Systèmes’ ADRs may be traded on the US Over-The-Counter (OTC) market (DASTY). For more information, visit http://www.3ds.com

CATIA, DELMIA, ENOVIA, SIMULIA, SolidWorks and 3DVIA are registered trademarks of Dassault Systèmes or its subsidiaries in the US and/or other countries.

TABLE OF CONTENTS

Non-IFRS key figures

Condensed consolidated statements of income

Condensed consolidated balance sheets

Condensed consolidated cash flow statements

IFRS – non-IFRS reconciliation