Semiconductors

Agilent
AMD
Analog Devices
ATMEL
Austin Semi

Cypress 
Dallas
Fairchild
Fujitsu
Harris/Intersil
Hewlett Packard

Hitachi
IDT
Intel
International Rectifier
Linear Tech
Logic Devices

Microchip
Micropac
Micron
Microsemi
Motorola
Nec
NSC

On Semi
Philips
QP Semi
Samsung
Signetics
Spectrumn (formerly Satcon)
STM

TI
Toshiba
Xicor
Xilinx
Zilog

Cable & Wire

Capacitors

Connectors

Relays

Resistors - Inductors

Magnetic cores

Alpha
Belden
Judd

AVX
Kemet
KAO
Murata
Nichicon
Phillips
Vishay

Amphenol /Bendix
Caron
Glen Air
ITT Cannon
Molex
Positronics
Tyco/AMP
3M

CII
CP Clare
Deutsch
Leach

Caddock
Delevan
KAO
RCD
Spectrum (formerly Satcon)
Vishay

Magnetics