| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Ross Engineering Corp. | USA | |
| 2 | SE Relays | USA | |
| 3 | Penta Laboratories | USA | |
| 4 | Conectek Industries Inc. | USA | |
| 5 | PICS INC | USA | |
| 6 | Pasternack Enterprises | USA | |
| 7 | Kilovac Products From CII Technologies | USA | |
| 8 | Aleph America Corporation | USA | |
| 9 | Cytec Corp. | USA | |
| 10 | Teledyne Relays | USA | |
| 11 | Cimi-Surecon Relays | USA |
