| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Morheat Inc. | USA | |
| 2 | Struthers-Dunn Inc. | USA | |
| 3 | SE Relays | USA | |
| 4 | Watlow | USA | |
| 5 | Valin Thermal Solutions & Automation | USA | |
| 6 | Mercury Displacement Industries Inc. (MDI Inc.) | USA | |
| 7 | Comus International | USA | |
| 8 | PICS INC | USA | |
| 9 | ASB Heating Elements | USA | |
| 10 | Industrial Systech Ltd. | USA | |
| 11 | JMS Southeast Incorporated | USA |
