Batteries
- Eveready
- Gates
- Hyundai Trade Corp.
- Nexxel
- Panasonic
- Renata
- Sanyo
- Varta
Capacitors
- ASC
- AVX
- Arcotronics
- BC Components
- Beyschlag
- Cal Chip
- Cera-Mite
- Dale
- Draloric
- Epcos
- Electrocube
- Elna
- Evox/Rifa
- Hilton
- Hitachi
- IBS Capacitor
- Illinois Capacitors
- ITT Components
- Johanson Dielectrics
- Johanson Mfg
- Kemet
- Koa
- Mallory
- Matsuo
- Meritek
- Murata
- Nemco
- NIC Components
- Nichicon America
- Nissei
- Novacap
- Panasonic
- Roederstein
- Rohm
- Rubycon
- RG Allen
- Samwha
- Sanyo
- Sfernice
- Siemens
- Siencera
- Sprague
- Stelco
- Syfer
- TDK
- Teapo
- Tacate
- Thompson-CSF
- TPC
- Venkel
- Vishay
- Vitramon
- Wima
- Yageo
Crystal/Oscillators
- Cal Crystal
- CTS
- Epson
- Fox
- Hosonic
- Impact
- Micro Crystal
- Premier Devices
- Plentronics
- Showa Electric
- TEW
Electrical Tapes
- 3M
- Avery
- CHR
- Furon
- Permacel
Fuses
- Bell Fuse
- Cooper Bussmann
- IBS Fuses
- Littlefuse
- NEC
- Opti-Fuse
- San-O
- Schruter
Inductors
- AEM
- Cal-Chip
- Chillsen
- Etal/Profec
- Dale
- Delevan
- IBS inductors
- Gowanda
- JW Miller
- Johanson Technology
- Mag Layers
- TDK
- Samwha
- Toko
- Walsin
- Yageo
Resistors
- Allen Bradley / Rockwell Automation
- ASJ Components
- BI Technologies
- Bourns
- C.T.S.
- Clarostat
- Dale/Vishay
- Hi-Tech Resistor
- IBS Resistors
- IRC
- KOA
- Megitt
- Noble
- Ohmite
- Rockwell
- Phycom
- Piher International Corp
- RG Allen
- RCD Components
- Rohm
- S.E.I. Electronics
- Sincera
- Siegert
- Electronics
- Spectrol
- Tyco
- Venkel
- Vishay
- Vitrohm
- Walsin
- Welwyn
- Yageo
Thermistors/Thermostat
- Airpax
- Ametherm
- IBS
- GE
- Keystone Carbon Co.
- NEC / Tokin
- Rodan
- RTI / Ketema
- Stetron International Inc.
- Therm-O-Disc
- Thermometrics
- Tokin
Transformers
- Etal/Profec
- IBS Transformers
- Pacific Transformer
- Premier Devices
- Pulse
- Sumida America
- Tamura
- Toko