| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Motor Protection Electronics (MPE) | USA | |
| 2 | Rockwell Automation | USA | |
| 3 | Littelfuse Inc. | USA | |
| 4 | SE Relays | USA | |
| 5 | PICS INC | USA | |
| 6 | TE Connectivity | USA | |
| 7 | Worldwide Electric Corp | USA | |
| 8 | Newmar | USA | |
| 9 | NTE Electronics Inc. | USA | |
| 10 | Eaton Crouse-Hinds Division | USA | |
| 11 | Jameco Electronic Components & Computer Products | USA | |
| 12 | Infitec Inc. | USA | |
| 13 | Macromatic Industrial Controls Inc. | USA | |
| 14 | Excel Industrial Electronics Inc. | USA | |
| 15 | R-K Electronics Inc. | USA | |
| 16 | STK Electronics Inc. | USA | |
| 17 | HBcontrols Inc. | USA |
