Brands
- 3M
- Acopian
- Actel
- ADC
- ADS
- Advantech
- Aerovox
- Agastat
- Agilent
- Airpax
- Aladdin
- ALCO
- ALCOSWITCH
- Aleph
- Algo
- Allegro
- Allen-Bradley
- ALLIED RADIO CORP.
- Alps
- Altech
- Altera
- AMC
- AMD
- AMETEK
- AMF Potter & Brumfield
- AMI
- AMP
- AMP / Amphenol
- AMP-Latch
- Amperex
- Amphenol
- Amphenol RF
- Amplifier Research
- ams OSRAM
- Analog Devices
- Analogic
- Apollo
- Apple
- Appleton
- Appleton EGS
- ARC
- Archer / Radio Shack
- ARCO
- ARCOS
- Argo
- Arrow
- Arrow Hart
- ASC
- Asco
- Ashcroft
- ASI - Advanced Semiconductor, Inc.
- Assmann WSW Components
- AT&T
- ATMEL
- ATP
- AUK
- AUO Optoelectronics
- Automotion
- Avenir
- AVX
- AXIS
- Banner Engineering
- Bantex
- BAPI
- BAUMER
- Bead & Ferrite Electronics
- Beckman
- Bel Fuse
- Bendix
- Beyschlag
- BI Technologies
- Birns Oceanographics
- Black Box
- Boston Gear
- Bourns
- Bourns (J.W. Miller)
- Brady
- Breeze Industrial Products
- Breezecom
- Briskheat
- Brooks
- Burle
- Burndy
- Burr-Brown
- Burroughs
- Bussmann
- Bussmann Limitron
- C&K
- Cal Test Electronics
- Campbell Scientific
- Cannon, Elco
- Capacitor
- Carlingswitch
- Carr-Lane
- Carrier
- Caterpillar
- CDI
- Cehco
- centralab
- Century Spring Corp.
