Autodesk Inventor, developed by U.S.-based software company Autodesk, is 3D mechanical CAD software for creating 3D digital prototypes used in the design, visualization and simulation of products.
CATIA (Computer Aided Three-dimensional Interactive Application) (in English usually pronounced /kəˈtiə/) is a multi-platform CAD/CAM/CAE commercial software suite developed by the French company Dassault Systèmes.
SOLIDWORKS (originally SolidWorks) is solid modeling CAD (computer-aided design) software that runs on Microsoft Windows and is since 1997 produced by Dassault Systèmes SOLIDWORKS Corp.