| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Smith Systems Inc. | USA | |
| 2 | Spectec | USA | |
| 3 | IFM Efector Inc. | USA | |
| 4 | Laurel Electronics Inc. | USA | |
| 5 | Sensor Systems LLC | USA | |
| 6 | Magnetic Sensors Corporation | USA | |
| 7 | Contrex Inc. | USA | |
| 8 | Sensoronix Inc. | USA | |
| 9 | Sensor Solutions | USA | |
| 10 | Motion Sensors Inc. | USA | |
| 11 | PICS INC | USA |
