AMD
Analog Devices
Brooktree/Conexant
Cypress Semiconductors & Microcontrollers  
Dallas Semiconductor
Exar   
Fairchild Semiconductor 
Fujitsu
G.E./Intersil
General Instrument
General Semi

Harris

Hitachi
Inmos 

IDT
Intel
International Rectifier

ITT Semi
Linear Technology
Maxim
Micron Technology
Mitel
Mitsubishi
MonolithicMemories                  

Mitel/Zarlink
Mostek
Motorola
National Semiconductor
NEC

On Semiconductor
OKI
Panasonic
Rockwell
Samsung

SEEQ/LSI 
Semicon
SGS Thompson
Siemens/Infineon
Signetics                      
Silicon General
Siliconix/Vishay
Sony
Sprague/Vishay
Teltone
Texas Instruments
Toshiba
Vishay
Western Digital
Xicor
Zilog