| 1 | Siemens Corporation | | USA |
| 2 | Industrial Electric Manufacturing | | USA |
| 3 | Emergency Transfer Controls Inc. | | USA |
| 4 | Electric Power Inc. | | USA |
| 5 | Advanced Power Technologies (APT) | | USA |
| 6 | National Switchgear Sytems Inc | | USA |
| 7 | Circuit Breaker Sales North East | | USA |
| 8 | Trayer Engineering Corp. | | USA |
| 9 | Sylvania | | USA |
| 10 | Professional Power Products Inc. | | USA |
| 11 | PACS Industries Inc. | | USA |
| 12 | Dynatech -Generator Specialist | | USA |
| 13 | Gen-Tec LLC | | USA |
| 14 | Stored Energy Systems (SENS) | | USA |
| 15 | Lake Shore Electric Corporation | | USA |
| 16 | Revere Control Systems Inc. | | USA |
| 17 | Caterpillar Electric Power | | USA |
| 18 | R. E. Beverly III and Associates | | USA |
