Dassault Systèmes has become one of Europe’s leading software companies, thanks in part to its 3DExperience platform and “digital twin” software. Manufacturers on big complex products—naval ships, automobiles, airplanes, oil rigs, even mining equipment—need the software to experiment with designs and modifications before the final construction process. Analysts expect growth of 8% to 13% a year for Dassault as it woos designers beyond autos and aerospace in new arenas like life sciences and consumer packaged goods.