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- 3M
- 80/20
- ABB
- Acuity Brands
- Advanced RF Technologies (ADRF)
- Advantech
- AEM Precision Cable Test
- AFC Cable Systems
- AFL Telecommunications
- Aiphone
- Allen Tel
- Allied Bolt
- Allied Moulded Products
- Allied Telesis
- Allied Tube and Conduit
- Alpha Wire
- Altronix
- American Polywater Corporation
- Amphenol Network Solutions
- APC
- Arlington
- Armorcast Products Company
- ASCO Power Technologies
- Atkore
- Atlona
- Belden
- Berk-Tek, a Leviton Company
- Bogen
- Brady Corporation
- Bridgeport Fittings
- Broan-Nu Tone, LLC
- Brother
- Bulwark
- Burndy
- Calbond
- Calbrite
- Cantex
- Cerro Wire
- Charles Industries
- Chatsworth
- Clearfield, Inc.
- CommScope
- Cooper Lighting Solutions
- Cope
- Corning
- Cortelco, Inc.
- CRC Industries
- Current
- Current - HLI Brands
- Cyberpower
- DeWalt
- Ditek
- Dura-Line
- Eaton
- Edwards Signaling
- Electric Motion Company
- Electri-Flex
- Encore Wire
- Energizer
- Engineered Products Company
- Ergodyne
- Federal Signal
- First Alert
- Fluke
- Fluke Networks
- GAI-Tronics
- Great Lakes Case and Cabinet
- Greenlee
- Hanwha Vision
- Harger Lightning and Grounding
- Heritage Plastics
- Hirschmann
- Holophane
- Hubbell
- Huskie Tools
- Ideal Industries
- IDIS
- Indeeco
- Intermatic
- Ipex USA
- Irwin Tools
- Jameson Tools
- JMA Wireless
- Jonard Tools
- Juno Lighting
- Key Digital Systems
- Kichler Lighting
- Kidde
- Klein Tools, Inc.
- KNIPEX Tools
- Krylon
- L.H. Dottie Company
- Lapp USA
- Legrand
- Lenox
- Leuze Electronic
- Leviton
- Liebert
- Lightera
- Lithonia Lighting
- Lutron Electronics
- MacLean Network Solutions
- Maclean Power Systems
- Marley Engineered Products
- McGill Manufacturing
- Microlab
- Milbank Manufacturing
- Milwaukee Tool
- Minuteman Power Technologies
- Miroc
- Mohawk
- Molex
- Motorola
- NEC
- NetScout
- NetSource
- Newton Instrument
- NSI Industries
- NSI-Lynn Electronics
- nVent
- Oberon Wireless
- Oldcastle Infrastructure
- OmniCable
- OmniOn Power
- Omnitron Systems
- Panduit
- Paxton-Access
- Pelco
- Pepperl+Fuchs
- Phoenix Contact
- Powerline Hardware
- Precision Group LLC
- Preformed Line Products
- Prime Conduit
- Primex
- Priority Wire & Cable
- Progress Lighting
- ProLabs
- Protective Industrial Products
- Prysmian
- PULS
- Quazite
- RAB Lighting
- RACO
- Rayovac
- RF Industries
- RFS Technologies, an Amphenol Company
- RLE Technologies
- Robroy Industries
- Salisbury by Honeywell
- Satco
- Schneider Electric
- Sensor Switch
- Service Wire
- Siemon
- Signify
- Softing, Inc.
- Specified Technologies, Inc.
- Square D
- Streamlight
- Sumitomo Electric
- Superior Essex Communications
- SureCall
- TalkAPhone
- TayMac
- TE Connectivity
- Teledyne FLIR
- Telemecanique Sensors
- Tempo Communications
- Tii Technologies
- Times Microwave
- TPI Corporation
- Trans-Coil (TCI)
- Transition Networks
- TREND Networks
- UCL Swift Americas
- Unistrut
- United Poly Systems
- Upsite Technologies
- Valcom, Inc.
- Velcro Companies
- Vertiv
- Viavi Solutions
- Viking Electronics, Inc.
- Westell
- Wilson Electronics
- ZERO Connect
- ZEUS Battery Products