| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Ross Engineering Corp. | USA | |
| 2 | Struthers-Dunn Inc. | USA | |
| 3 | Littelfuse Inc. | USA | |
| 4 | GAMA Electronics Inc. | USA | |
| 5 | PICS INC | USA | |
| 6 | Vynckier Enclosure Systems Inc. | USA | |
| 7 | TE Connectivity | USA | |
| 8 | Coxreels | USA | |
| 9 | Esterline Power Systems | USA | |
| 10 | Deltrol Controls | USA | |
| 11 | Kurz-Kasch Inc. | USA | |
| 12 | Kilovac Products From CII Technologies | USA | |
| 13 | Comus International | USA |
