| 1 | Lindsey Systems | | USA |
| 2 | S & C Electric Co. | | USA |
| 3 | The Electric Materials Company | | USA |
| 4 | PACS Industries Inc. | | USA |
| 5 | Trayer Engineering Corp. | | USA |
| 6 | National Switchgear Sytems Inc | | USA |
| 7 | Senior Flexonics Bartlett Facility | | USA |
| 8 | ABB | | USA |
| 9 | Qualitrical LLC | | USA |
| 10 | CG Power Systems USA Inc. | | USA |
| 11 | Penn Panel & Box Company | | USA |
| 12 | Mercury Displacement Industries Inc. (MDI Inc.) | | USA |
| 13 | H-J Family of Companies | | USA |
| 14 | Gen-Tec LLC | | USA |
| 15 | Vacuum Electric Switch Co. | | USA |
| 16 | Dynamic Ratings Inc. | | USA |
| 17 | Powergen Controls LLC | | USA |
| 18 | CBS Magvac | | USA |
| 19 | R. E. Beverly III and Associates | | USA |
