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.

Some CAD software

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