- ABB (T&B Electrical)
- ACME (Hubbell)
- Adam Tech
- Aeros USA
- AFL Global
- Alpha Wire
- Altran Magnetics
- American Bright
- American Zettler
- Amphenol (RF)
- Amphenol Industrial
- Amphenol Spectra-Strip
- APC
- Aries Electronics, Inc.
- Atkins + Pearse
- Atlas Wire
- AZ Displays (American Zettler)
- Belden
- Bendix
- Berk-Tek (Leviton)
- Brady Corp
- Bryant (Hubbell)
- Bud Industries, Inc.
- Cardinal Components
- Carlon (ABB)
- CIT Relay & Switch
- Citel
- Coast Custom Cable
- Comchip
- Concord Electronics (Staffall)
- Continental Cordage
- Convergent Connectivity Technology Inc (CCT Cable)
- Cooper Tools (Eaton)
- D3 Engineering
- Dantona Industries
- Data Guide Cable
- Datalogic
- Delfingen
- Draka (Prysmian)
- E-Switch
- EAO
- Easy Braid Co.
- Eaton - Bussmann Series
- ebm-papst Inc.
- Electri-Cord
- Electrocube Inc. (Bishop Electronics)
- Electroswitch
- Emerging Display Tech
- Endot Industries
- Enerdoor
- FDK Corporation
- Feller Power Cords
- FEMA Electronics
- Gowanda Electronics
- Hammond Manufacturing
- Hamsar
- Hantronix
- HellermannTyton
- Helukabel USA
- Henkel - Bergquist
- Heyco Products Corp.
- Hirschmann - A Belden Brand
- Hollingsworth
- Honeywell
- Hubbell Premise Wiring
- Ideal Industries
- IDIS Global
- Indium Corporation
- International Components Corp.
- Kalas
- Keystone Electronics Corp.
- Killark (Hubbell)
- Kolver USA
- Laird
- Lake Cable
- LAPP USA
- Leader Tech (FerriShield)
- Littelfuse
- Lorom
- Lumberg Automation (Belden)
- Lynn Electronics
- Magnum (Eaton)
- Mallory Sonalert Products
- Maple Systems
- Marathon Special Products (Regal Beloit)
- Marinco
- Marmon Aerospace & Defense
- MEGA Electronics
- Mersen
- MG Chemicals
- Mill-Max Mfg. Corp.
- New England Wire Tech
- nVent Hoffman
- Okonite
- Optical Cable Corp.
- Panduit
- Penn-Union
- Pepperl + Fuchs
- Phoenix Mecano
- Platinum Tools
- Power-Sonic
- Proterial Cable (Hitachi)
- Prysmian Group - General Cable
- PUI Audio
- Quabbin Wire & Cable
- Quirk Wire Company
- Raco (Hubbell)
- RAF Electronic Hardware
- SAB
- SAMTEC
- Sealcon
- SolaHD (Appleton)
- Southwire Company, LLC
- Sprecher+Schuh
- SSI Technologies, LLC
- Sumitube (Sumitomo Electric)
- SunLED
- Sunon
- Switchcraft
- Tel-Tru
- TELE Controls Inc.
- TEWA
- Therm-O-Link
- Triad Magnetics
- Trippe Lite
- Varflex Corporation
- Volex
- Wall Industries
- WECO
- Weidmüller
- West Penn Wire
- Wiegmann (Hubbell)
- Zebra
- Zettler Magnetics
- Zeus Battery
- Zeus Industrial