| A | ACME Transformer | power & control transformers | |
| Adalet | NEMA & expl-proof enclosures | ||
| Advance Transformer | lighting ballasts | ||
| Aero-Motive | cable & hose reels | ||
| Air Master | fans | ||
| American Electric (T&B) | lighting fixtures | ||
| Anaconda | flexible conduit | ||
| Aqua Signal | marine & navigation lighting | ||
| Arlington | conduit fittings | ||
| Arrow Hart | wiring devices | ||
| B | Band-It | metal cable ties | |
| Blackburn (T&B) | aluminum & copper lugs | ||
| Bussmann | fuses & accessories | ||
| C | Carol Cable | wire & cable | |
| Charles Charger | battery chargers, etc. | ||
| Corflex | CLX cable | ||
| CRC | cleaners, lubricants | ||
| D | Duracell | batteries | |
| Dual-Lite | emergency lighting | ||
| E | Eagle | wiring devices | |
| Electromate | enclosures | ||
| Excel Wire & Cable | wire & cable | ||
| F | Federal Signal | signaling devices | |
| Fluke | hand-held meters, scopes, & access. | ||
| G | Greenlee | electrical tools | |
| H | Hawke International | cable glands | |
| Hose McCann | marine telecommunications | ||
| Hoyt Corporation | replacement contact kits | ||
| I | Ilsco | terminals & lugs | |
| Insul 8 | mobile electrification systems | ||
| Intermatic Time Switch | time switches | ||
| J | Jefferson Electric | transformers | |
| Jenkins | signaling devices | ||
| K | Killark | electrical construction products | |
| Kindorf (T&B) | straps, clamps, channel | ||
| Klein | hand tools | ||
| L | |||
| M | Magnetek (Century) | motors | |
| Magnetek (Transformers) | lighting ballasts & transformers | ||
| Meltric Corp. | industrial plugs, recepts. & connectors | ||
| 3M | tapes & terminals | ||
| Mobern Lighting | lighting fixtures | ||
| Murphy, Frank W. Mfr. | meters, switches | ||
| Myers Hub | outdoor watertight hubs | ||
| N | Nelson | fire-retardant sealant | |
| North Star | lighting fixtures | ||
| O | |||
| P | Panduit | cable ties, terminals, & markers | |
| Paramount | marine lighting | ||
| Pauluhn | marine lighting, etc. | ||
| Perfect Line (T&B) | conduit fittings | ||
| PerFit | CLX cable glands | ||
| Picoma | conduit fittings | ||
| Plasti-Bond | PVC-coated conduit fittings | ||
| Precision | photocells & timers | ||
| Q | |||
| R | Regal | conduit fittings | |
| Remke | cable grips | ||
| Rig-A-Lite | lighting fixtures | ||
| Rigid Conduit & Fittings | conduit & fittings | ||
| Rittal Electromate | enclosures | ||
| Robroy | PVC-coated conduit & fittings | ||
| Rockbestos | wire & cable | ||
| Roflan | emergency lighting fixtures | ||
| Russellstoll (T&B) | plugs & receptacles | ||
| S | Selecta Switch | switches & pushbuttons | |
| SimKar | lighting fixtures | ||
| Simpson | hand-held meters & accessories | ||
| Sperry | hand-held meters & accessories | ||
| Square D | power distribution, controls | ||
| Stahlin | fiberglass enclosures | ||
| Steel City (T&B) | conduit fittings | ||
| Sylvania | lamps | ||
| T | Teledyne Big Beam | emergency lighting | |
| Telemecanique | controls | ||
| Thomas & Betts | cable ties, terminals, solderless lugs, etc. | ||
| U | Universal Mfg. | lighting ballasts | |
| V | Victor | cable clamps & straps | |
| W | Walther, F. | pin & sleeve devices | |
| Waterguard | water absorption & protection | ||
| Williams, H.E. | lighting fixtures | ||
| Woodhead, Daniel | safety wiring devices | ||
| XYZ | |||