SOLIDWORKS (originally SolidWorks) is solid modeling CAD (computer-aided design) software that runs on Microsoft Windows and has been produced by Dassault Systèmes SOLIDWORKS Corp., a subsidiary of Dassault Systèmes, S. A. (Vélizy, France) since 1997. SOLIDWORKS is currently used by over 2 million engineers and designers at more than 165,000 companies worldwide.