| 3M | 48-49 |
| ABB | 10-11 |
| Acuity Brands | 12-13 |
| Backos Group PC | 12-13 |
| Bizzaro & Brindisi Electrical Sales | 12-13 |
| Bridgeport | 12-13 |
| Cooper Lighting | 12-13 |
| Current | 32-33 |
| Damin Sales | 16-17 |
| Diversified | 32-33 |
| EATON | 24-25 |
| EATON | 24-25 |
| EATON | 26-27 |
| Encore Wire | 50 |
| Generac | 16-17 |
| Greenlee | 16-17 |
| Hammond Manufacturing | 16-17 |
| Hammond Power Solutions | 16-17 |
| IBEW Local 363 | 2-3 |
| Intermatic | 40-41 |
| Kidde | 40-41 |
| Kraloy | 40-41 |
| Lasalle Reps | 26-27 |
| Legrand | 46-47 |
| Leviton | 28-29 |
| Mersen | 40-41 |
| Morris Products | 38-39 |
| Nora Lighting | 32-33 |
| nVent ERICO | 26-27 |
| Panasonic | 28-29 |
| Qmark / Marley | 26-27 |
| SATCO | 28-29 |
| Scirocco Group Insurance | 40-41 |
| Southwire | 46-47 |
| Thea / Atkore | 22-23 |
| Thea / Cantex | 22-23 |
| Thea / Hubbell | 22-23 |
| Thea / Klein Tools | 22-23 |
| Thea / Lutron | 22-23 |
| Warshaw | 46-47 |
| Werner | 48-49 |
| Western Tube | 48-49 |
| Xsolutions | 48-49 |
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