| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Picker Components Corp | USA | |
| 2 | DRI | USA | |
| 3 | Deltrol Controls | USA | |
| 4 | Danaher Specialty Products – Veeder-Root Namco Controls Joslyn Clark | USA | |
| 5 | STK Electronics Inc. | USA | |
| 6 | American Zettler Inc. | USA | |
| 7 | Rockwell Automation | USA | |
| 8 | Cit Relay & Switch | USA | |
| 9 | Ross Engineering Corp. | USA | |
| 10 | AEI | USA | |
| 11 | Amperite Co. | USA | |
| 12 | Struthers-Dunn Inc. | USA | |
| 13 | Omron Automation Americas | USA | |
| 14 | KG Technologies Inc. | USA | |
| 15 | IDEC Corp. | USA | |
| 16 | Littelfuse Inc. | USA | |
| 17 | SE Relays | USA | |
| 18 | Thomas Products Ltd. Flow Switch Div. | USA | |
| 19 | R-K Electronics Inc. | USA | |
| 20 | Dow-Key Microwave Corp. | USA | |
| 21 | Cougar Electronics Corp. | USA | |
| 22 | Schneider Electric | USA | |
| 23 | Hasco Relays & Electronics International Corp. | USA | |
| 24 | DFX Technologies LLC | USA | |
| 25 | Jameco Electronic Components & Computer Products | USA | |
| 26 | Johnson Electric | USA | |
| 27 | Perfect Switch LLC | USA | |
| 28 | NTE Electronics Inc. | USA | |
| 29 | Hongfa America Inc. | USA | |
| 30 | HBcontrols Inc. | USA | |
| 31 | PICS INC | USA |
