| Airport Lighting | Cable Glands | Kindorf | Penn-Union |
| Carmanah Technologies | Crouse-Hinds | power-Strut | Distribution |
| Crouse-Hinds | Hawke | Superstrut | ABB T&D |
| Point Lighting | Thomas & betts | Unistrut | Areva T &D |
| Audible Signals & Alarms | Cable Markers | Chemicals & Cleaners | Cooper Power Systems |
| Edwards | Ideal Industries | Calfonex | Culter-Hammer |
| Faraday | NSi | CRC | General Electric |
| MEDC | Panduit | WD40 | Hammond |
| Federal Signal | W.H.Brady | Conduit & Raceway | Pauwel |
| Aviation & Navigation | Cable, Wire & Cords | AFC Cable Systems | Powell |
| Crouse-Hinds | Aetna Insulated Wire | Allied Tube | Rex |
| Tideland Signal | Amercable | Anament-Liquidtight | Siemens |
| Ballasts | AIW | Cantex-PVC | Vantran Electric |
| Advanced Transformer | Belden | Carlon-PVC | Enclosures |
| Bodine | Coleman Cable | Champion-Fiberglass | Adalet |
| Deco Lighting | Draka | Electric-Fiex | Akron |
| Osram Sylvania | Dekoron | Hertiage-PVC | B-Line |
| Universal Lighting Technologies | East Coast Lighting | Indalex-Aluminium | Crouse-Hinds Co |
| Batteries | Equipment | Ocal-PVC-Coated | Ebox |
| Duracell USA | Encore Wire Corp | Republic Conduit | Hoffman |
| Eveready | Essex | Southwire | Killark |
| Exide | General Cable | Wheatland Tube | Rittal |
| Rayovac | Houston Wire & Cable | Conduit Fittings | R.Stahl |
| Boxes | LS Cable | AFC Cable Systems | Thomas & Betts |
| Adalet | Manhattan/CDT | Arlington | Vynckier |
| Akron Electric | Nexans | Bridgeport | Fuses |
| Austin | Okonite | Cantex | Bussmann |
| B-Line | Prysmian | Carlon | Ferraz Shawmut |
| BWF/TEddico | Repyublic Wire | Crouse-Hinds Co | Littelfuse |
| C&I Enclosures | Rockbestos | Killark | NRL |
| Crouse-Hinds | Shawflex | Picoma | Grounding Equipment/Lighting Protection |
| E-Box | TPC Wire & Cable | Raco | FCI Burndy |
| Hoffman Engineering | Cable Tray | Red Dot | Cadweld |
| Killark | B-Line | Shamrock | East Coast Lighting |
| Pelican Products | Cablofil | Thomas & Betts | Erico |
| Raco | Channel-Track | Wheatland Tube | Furse |
| Thomas & Betts | Enduro | Connectors | Harger |
| Vynckier | PW Industries | Blackburn/Color-Keyed | Penn-Union |
| Wiegmann | T.J. Cope | FCI Burndy | ThermoWeld |
| Hazardous Location | Channel & Raceway | Ideal Industries | Thomas & Betts |
| adalet | |||
| Akron | B-Line | IIsco | Terminal Blocks |
| Ceag | H-Strut | Panduit | Buchanan |
| Chalmit | Philips | Tideland Signal Corp | Cutler-Hammer |
| Crouse-Hinds | Sylvania | Sperry Marine | Ideal Industries |
| General Electric | TCP | Marking Systems | Marathon |
| Holophane | Lighting Fixtures | 3M | Phoenix |
| Hubbell | American Electric | Ideal Industries | Waco |
| Killark | Big Beam | Panduit | Weidmuller |
| NRL | Chalmit | NSi | Tools & Instruments |
| Pauluhn Industries | Cooper Lighting | Thomas & Betts | AEMC |
| Rig-A-Lite | Crouse-Hinds | W.H. Brady | Amprobe |
| R. Stahl | Deco Lighting | Motors | Avo/Megger |
| Heat Tracing | Dual-Lite | ABB | Dewalt Industrial |
| Thermon | Edwards | Baldor/ Reliance | Fluke |
| Brook Hansen | |||
| Tyco Thermal | Exide | Franklin Electric | GB Gardner-Bender |
| Horns & Beacons | General Electric | General Electric | Greenlee |
| Crouse-Hinds | Genlyte Group | Marathon | Ideal Industries |
| Edwards | Hubbell Lighting | Siemens | Klein Tools |
| Federal Signal | Holophane | Teco-Westinghouse | Milwaukee Electric |
| MEDC | Light Alarms | US Motors | Panduit |
| Pauluhn Industries | Lithonia | VEM | Ridgid |
| Intercom Systems | NRL | WEG | Snap-On |
| Gaitronics/Hubbell | Pauluhn Industries | Motor Control Centers | Transformers |
| Hose McCann | Rig-A-Lite | Cutler-Hammer | ABB T & D |
| Instrumentation & Control | Sea Gull Lighting | General Electric | Acme Transformer |
| Anderson Greenwood | Widelite | Siemens | Areva T & D |
| Asco Solenoids | Marine Equipment | Plugs & Connectors | Cooper Power Systems |
| Ashcroft | Alpha Laval | Crouse-Hinds | General Electric |
| Barksdale | Aqua Signal | Cooper Wiring Devices | Jefferson |
| Bently Nevada | Chalmut | Daniel Woodhead | Olsun |
| Cameron | Crouse-Hinds Molded | International Configurations | Rex |
| Dwyer Instrument | Daniel Woodhead | Leviton | Sola/Hevi-Duty |
| Emerson | Electrolux | Pass & Seymour | Vantran |
| Fisher Valves | ESL Power Systems | Pyle National | Wiring Accessories |
| FW Murphy | Fluke | Power Generation | 3M |
| Honeywell | Furuno | Cummins | Broan/NuTone |
| ITT Conoflow | Hubbell Wiring Devices | Splice Kits | Greenlee |
| Parker Hannifin | Karl Dose GMBH | 3M Electrical | Ideal Industries |
| Rosemount | Hose McCann | Elastimold | Panduit |
| SOR (Static-0-Ring) | Mennekes Electronics | IPP | Polywater |
| UEC (United Electric Control) | Oceanic | Tyco | Wiremold |
| Versa Valve | Omron | Starters | Wiring Devices |
| lamps | Paulun Industries | Crouse-Hinds | Bryant |
| Eye Lighting | Perko Lighting | Cutler-Hammer | Cooper Wiring Devices |
| General Electric | Phoenix Lighting | General Electric | Hubbell Wiring Devices |
| Pyle National-Starline | Tape | Legrand | |
| Robertson Transformer | 3M | Leviton | |
| Russellstol/Mipco | Plymouth Rubber | Pass & Seymour |
