This list is almost certainly incomplete. Additions and corrections are appreciated. Some companies listed here still exist, but qualify for inclusion here due to the termination of their activities as a high-performance computing supplier or due to the merger of their activities with those of another company.
This site is very much under construction, and your help will be greatly appreciated. An automated contribution system will be installed "one of these days". Meanwhile, please send any proposed additions, any relevant URLs, and any personal contributions (in HTML if possible. Use this template if you like) to kevink @ acm.org.
Last Update: March 15, 2009