List of CAD companies

Many CAD companies produced CAD software in the 1970's - present. Some of them are listed below. The list is far from complete or representative: 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.

• Autodesk
• Bentley Systems
• CADDS5
• Cadkey
• CATIA
• EDS
• Euclid
• I-DEAS
• Inventor
• Intergraph
• Matricus
• ME
• Pro/ENGINEER
• QCad free software
• Solid Edge
• Solid Works
• Think3
• Unigraphics
• VariCAD
• Vectorworks

Some CAD software

• AutoCAD (by Autodesk)
• Caddie
• Microstation (by Bentley Systems)

A comprehensive list of electronic design automation (EDA) Companies can be copiled from lists of vendors-exhibitors of DAC (Design Automation Conference) held yearly for more than 30 years. Some are listed below

• Avanti (merged into Synopsys)
• Cadence Design Systems, Inc
• IC-Ed
• Mentor Graphics
• MyCad
• Stabie-Soft
• Silvaco
• Synopsys
• Tanner Research