This is a list of computer-aided technologies (CAx) companies and their software products. Software using computer-aided technologies (CAx) has been produced since the 1970s for a variety of computer platforms. This software may include applications for computer-aided design (CAD), computer-aided engineering (CAE), computer-aided manufacturing (CAM) and product data management (PDM).
The list is far from complete or representative as the CAD business landscape is very dynamic: almost every month new companies appear, old companies go out of business, companies split and merge. Sometimes some names disappear and reappear again.
Past CAD Brands
Acquired, orphaned, failed or rebranded.
AliasAcquired by
AutodeskAppliconAcquired by UGS Corp.
CADAM INCAcquired by
Dassault SystèmesCADCentreRebranded as Aveva
Baystate TechnologiesAcquired by Kubotek Corporation
BARCO NVNow called Ucamco for
printed circuit board applications
CamscoAcquired by Gerber
CIS (Cambridge Interactive Systems)Acquired by
ComputervisionCADKEYAcquired by Baystate Technologies
CalmaAcquired by Computervision
ClarisPublished "ClarisCAD", abandoned in transition of company to
FileMaker Inc.
ComputervisionAcquired by Parametric Technology Corporation
Diehl GraphsoftAcquired by
NemetschekInvestronicaAcquired by Lectra
Matra DataVisionAcquired by
Dassault SystèmesMicrodynamics, Inc.Acquired by Gerber
NC GraphicsAcquired by Parametric Technology Corporation
Revit Technology CorporationAcquired by
AutodeskShape Data LimitedAcquired by
Siemens AG
Spatial Corp.Acquired by Dassault Systèmes
SDRCAcquired by UGS Corp.
SRAC(Structural Research and Analysis Corporation) acquired by
SolidWorks CorporationSolidWorks CorporationAcquired by Dassault Systèmes
SDRC-IDEASAcquired by Unigraphics Solutions
Unigraphics Solutions a.k.a. UGS Corp.Acquired by
SiemensDeveloped by companies for their own use. Some are no longer used as the organizations are now using commercial systems.
SagCAD — Open source 2D CAD program. Maintained on SourceForge.PythonCAD — Open source 2D CAD in Python on SourceForge.JCAD — Open source 2D CAD in Java. Maintained on SourceForge.RibbonSoft QCadArchimedes — Architectural CAD program.avoCADo — Open source 3D CAD program in Java. Maintained on SourceForge.BRL-CADFreeCAD — a general purpose 3D CAD modeler, implementing Open CASCADE. Maintained on SourceForge.Wildcat CAD — Open source 3D solid modeler and CAD application. Not to be confused with Wildcat! BBS.IRIT — A solid modeling environment that allows one to model basic, primitive based models using Boolean operations as well as freeform surface's based models.GuIrit - A graphical user interface for IRITSvLis — The Set-theoretic Kernel Geometric Modeller. A CSG modeller written in the C++ language and accessed through a call interface.Open CASCADE — an SDK for 3D CAD, CAM, CAE, ...HeeksCAD — a CAD application written by Dan Heeks. The solid modelling is provided by Open_CASCADE. Maintained on Google Code.HeeksCNC — an add-on for HeeksCAD. Maintained on Google Code.lignumCAD — a tool for designing furniture, based on OpenCASCADE and Qt. Maintained on SourceForge.NaroCAD - a parametric modeling CAD application.PythonOCC — Python wrappers for OpenCASCADE.FreeCAD — an OpenSource CAD/CAE, based on Open CASCADE, Qt and Python.SolidModeller — a parametric solid modeller. Includes a constraint based parametric sketcher. Maintained on SourceForge.CADMAI — a CAD framework which can either be used as a standalone CAD application or as an integration module for 3rd party applications or SOA environments.OpenPLM - PLM framework based on Python (programming language) / Django (web framework), Open CASCADE, Xapian, Graphviz.