| 1 | IFM Efector Inc. | | USA |
| 2 | Wisconsin Oven Corp. | | USA |
| 3 | Motor Protection Electronics (MPE) | | USA |
| 4 | WEG Electric Corp. | | USA |
| 5 | Yaskawa America Inc. – Drives & Motion Division | | USA |
| 6 | Ross Engineering Corp. | | USA |
| 7 | NOARK Electric North America | | USA |
| 8 | U.S. Tsubaki Inc. | | USA |
| 9 | Pilz Automation Safety L.P. | | USA |
| 10 | ABB E-mobility | | USA |
| 11 | Littelfuse Inc. | | USA |
| 12 | Siemens Corporation | | USA |
| 13 | Wunderlich-Malec | | USA |
| 14 | TE Connectivity | | USA |
| 15 | Macromatic Industrial Controls Inc. | | USA |
| 16 | Springer Controls Co. | | USA |
| 17 | Jameco Electronic Components & Computer Products | | USA |
| 18 | Sylvania | | USA |
| 19 | Beckwith Electric Co. Inc. | | USA |
| 20 | c3controls | | USA |
| 21 | Schweitzer Engineering Laboratory | | USA |
| 22 | General Electric Co. | | USA |
| 23 | AMETEK Factory Automation | | USA |
| 24 | Shallco Inc. | | USA |
| 25 | PICS INC | | USA |
| 26 | Clark Corp. | | USA |
| 27 | SSAC Inc. | | USA |
| 28 | Gems Sensors & Controls | | USA |
| 29 | R-K Electronics Inc. | | USA |
| 30 | Bender Inc. | | USA |
| 31 | Circuit Breaker Sales Co. Inc. | | USA |
| 32 | Technology Research Corporation | | USA |
| 33 | Hoyt Electrical Instrument Works Inc. | | USA |
| 34 | AMPS | | USA |
| 35 | Phoenix Contact | | USA |
| 36 | Recora Incorporated | | USA |
| 37 | ERL Phase Power Technologies Ltd. | | USA |
| 38 | Vynckier Enclosure Systems Inc. | | USA |
| 39 | Schneider Electric | | USA |
| 40 | Celduc Inc. | | USA |
| 41 | Mors Smitt Technologies Inc. | | USA |
| 42 | Eaton Crouse-Hinds Division | | USA |
| 43 | ABB | | USA |
| 44 | Basler Electric Co. | | USA |
| 45 | El-Tex Industries Inc. | | USA |
| 46 | GE Digital Energy | | USA |
| 47 | Manta Test Systems | | USA |
| 48 | I-Gard Corporation | | USA |
| 49 | Picker Components Corp | | USA |
| 50 | ALSTOM T & D Inc. | | USA |
| 51 | National Electrical Code Training | | USA |
