3dfx (video cards): http://www.3dfx.com/
Adaptec (SCSI cards): http://www.adaptec.com/
AMK (cases, fan controller): http://www.amkcomputers.bc.ca/
ASUS (motherboards): http://www.asus.com/
Creative Labs (sound cards): http://opensource.creative.com/
Linux ECC: http://www.anime.net/~goemon/linux-ecc/
Matrox (video cards): http://www.matrox.com/
PC Power and Cooling (power supplies): http://www.pcpowercooling.com/
Sparkle Power (power supplies): http://www.sparklepower.com/
Supermicro (cases): http://www.supermicro.com/
Symbios (SCSI cards): http://www.lsilogic.com/
Tyan (motherboards): http://www.tyan.com.tw/
VA Cerberus Test Control System: http://sourceforge.net/project/?group_id=5317
OpenAL (new 3-D sound standard): http://www.openal.org/
XFree86: http://xfree86.org/