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, share-based compensation expense and related social charges, the amortization of acquired intangible assets, other operating income and expense, net, certain one-time items included in financial revenue and other, net, and the income tax effect of the non-IFRS adjustments and certain one-time tax effects. The tables also set forth the most comparable IFRS financial measure and reconciliations of this information with non-IFRS information.

This press release constitutes the quarterly financial information required by article L.451-1-2 IV of the French Monetary and Financial Code (Code Monétaire et Financier).

Important Notices

This communication is for informational purposes only and is neither a recommendation, an offer to purchase nor a solicitation of an offer to sell securities. On October 12, 2017, Dassault Systèmes filed with the U.S. Securities Exchange Commission (the “SEC”) a tender offer statement on Schedule TO regarding the tender offer described in this communication. Holders of shares of common stock of Exa Corporation are urged to read the tender offer statement (as it may be updated and amended from time to time) filed by Dassault Systèmes because it contains important information that holders of shares of common stock of Exa Corporation should consider before making any decision regarding tendering their shares. The tender offer statement and other documents filed by Dassault Systèmes and Exa Corporation with the SEC are available for free at the SEC’s website at www.sec.gov.

Forward-looking Statements

The foregoing communication may contain forward-looking statements. These forward-looking statements involve known and unknown risks, uncertainties and other factors, many of which are outside of the control of Dassault Systèmes, are difficult to predict and may cause actual outcomes to differ significantly from any future outcome expressed or implied in the forward looking statements in this communication. While Dassault Systèmes believes that the assumptions made and the expectations reflected in this material are reasonable, no assurance can be given that such assumptions or expectations will prove to have been correct and no guarantee of whatsoever nature is assumed in this respect. The uncertainties include, inter alia, the risk of a change in general economic conditions and government and regulatory actions. These known, unknown and uncertain factors are not exhaustive, and other factors, whether known, unknown or unpredictable, could cause Dassault Systèmes’ actual results or ratings to differ materially from those assumed hereinafter. Dassault Systèmes undertakes no obligation to update or revise the forward-looking statements in this material whether as a result of new information, future events or otherwise.

About Dassault Systèmes

Dassault Systèmes, the 3DEXPERIENCE Company, provides business and people with virtual universes to imagine sustainable innovations. Its world-leading solutions transform the way products are designed, produced, and supported. Dassault Systèmes’ collaborative solutions foster social innovation, expanding possibilities for the virtual world to improve the real world. The group brings value to over 220,000 customers of all sizes, in all industries, in more than 140 countries. For more information, visit www.3ds.com.

3DEXPERIENCE, the Compass logo and the 3DS logo, CATIA, SOLIDWORKS, ENOVIA, DELMIA, SIMULIA, GEOVIA, EXALEAD, 3D VIA, BIOVIA, NETVIBES and 3DEXCITE are registered trademarks of Dassault Systèmes or its subsidiaries in the US and/or other countries.

(Tables to Follow)

TABLE OF CONTENTS

Glossary of Definitions

Non-IFRS Financial Information

Condensed consolidated statements of income

Condensed consolidated balance sheets

Condensed consolidated cash flow statements

IFRS – non-IFRS reconciliation

DASSAULT SYSTEMES

Glossary of Definitions

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 "prior" period have first been recalculated using the average exchange rates of the comparable period in the current year, and then compared with the results of the comparable period in the current year.

Information on Growth excluding acquisitions (“organic growth”)

Growth excluding acquisitions have been calculated using the following restatements of the scope of consolidation: for entities entering the consolidation scope in the current year, subtracting the contribution of the acquisition from the aggregates of the current year, and for entities entering the consolidation scope in the previous year, subtracting the contribution of the acquisition from January 1 of the current year, until the last day of the month of the current year when the acquisition was made the previous year.

Information on Industrial Sectors

The Company’s global customer base includes companies in 12 industrial sectors: Transportation & Mobility; Industrial Equipment; Aerospace & Defense; Financial & Business Services; High-Tech; Life Sciences; Energy, Process & Utilities; Consumer Goods & Retail; Natural Resources; Architecture, Engineering & Construction; Consumer Packaged Goods & Retail and Marine & Offshore. Commencing in 2012 the Company implemented an industry go-to-market strategy with the dual objectives of broadening and deepening its presence in its largest industries as well as increasing the contribution from a diversified set of industrial sectors. “Diversification Industries” include: Architecture, Engineering & Construction; Consumer Goods & Retail; Consumer Packaged Goods & Retail; Energy, Process & Utilities; Finance Business Services; High-Tech; Life Sciences; Marine & Offshore; and Natural Resources. “Core Industries” include: Transportation & Mobility, Industrial Equipment, Aerospace & Defense and a portion of Business Services.

3DEXPERIENCE New Licenses and Software Contribution

To measure the progressive penetration of 3DEXPERIENCE software, the Company utilizes the following ratios: a) for new licenses revenue, the Company calculates the percentage contribution by comparing total 3DEXPERIENCE new licenses revenue to new licenses revenue for all product lines except SOLIDWORKS and acquisitions; and, b) for software revenue, the Company calculates the percentage contribution by comparing total 3DEXPERIENCE software revenue to software revenue for all product lines except SOLIDWORKS and acquisitions.

DASSAULT SYSTEMES

NON-IFRS KEY FIGURES
(unaudited; in millions of Euros, except per share data, headcount and exchange rates)

Non-IFRS key figures exclude the effects of adjusting the carrying value of acquired companies’ deferred revenue, share-based compensation expense and related social charges, amortization of acquired intangible assets, other operating income and expense, net, certain one-time financial revenue items and the income tax effect of the non-IFRS adjustments and certain one-time tax effects.

Comparable IFRS financial information and a reconciliation of the IFRS and non-IFRS measures are set forth in the separate tables within this Attachment.