| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | IFM Efector Inc. | USA | |
| 2 | Thermik Corporation | USA | |
| 3 | Micro-Epsilon | USA | |
| 4 | TT Electronics | USA | |
| 5 | Exergen Corp. | USA | |
| 6 | Thermo Sensors Corporation | USA | |
| 7 | Quality Thermistor Inc. | USA | |
| 8 | ThermoWorks | USA | |
| 9 | LOFA Industries | USA | |
| 10 | Harold G. Schaevitz | USA | |
| 11 | Microtherm North America Inc. | USA | |
| 12 | Consero Inc. | USA | |
| 13 | Texas Instruments | USA | |
| 14 | PICS INC | USA | |
| 15 | Precision Measurements Inc. | USA | |
| 16 | Sensor Scientific Inc. | USA | |
| 17 | Princo Instruments Inc. | USA | |
| 18 | W. H. Cooke & Co. Inc. | USA | |
| 19 | LIOS Technology Inc. | USA | |
| 20 | Precision Linear Systems Inc. | USA |
