| 1 | Rhino Process Controls & Instrumentation | | USA |
| 2 | Us Koei Technologies Inc. | | USA |
| 3 | Century Controls Inc. | | USA |
| 4 | Pathfinder Instruments | | USA |
| 5 | Precision Measurement Engineering Inc. | | USA |
| 6 | RODI Systems | | USA |
| 7 | Davis Instruments | | USA |
| 8 | Hydro-Check Systems Inc | | USA |
| 9 | D-2 Incorporated | | USA |
| 10 | Redpoint Controls LLC | | USA |
| 11 | Hydrolab | | USA |
| 12 | NovaLynx Corporation | | USA |
| 13 | Mar-Cor Purification | | USA |
| 14 | ABB | | USA |
| 15 | PendoTECH | | USA |
| 16 | J & W Instruments Inc. | | USA |
| 17 | Simtech Process Systems | | USA |
| 18 | Bystat International | | USA |
| 19 | Mettler-Toledo | | USA |
| 20 | Lakewood Instruments LLC | | USA |
| 21 | Hawkins & Associates Inc. | | USA |
| 22 | AMETEK Drexelbrook | | USA |
| 23 | Yokogawa Analytical | | USA |
| 24 | Lambient Technologies LLC | | USA |
| 25 | Baumer Ltd. | | USA |
| 26 | Campbell Scientific Inc. | | USA |
| 27 | PICS INC | | USA |
| 28 | Georg Fischer LLC | | USA |
| 29 | Burkert Fluid Control Systems | | USA |
| 30 | Schneider Electric | | USA |
| 31 | ProMinent Fluid Controls Inc. | | USA |
| 32 | Foerster Instruments Inc. | | USA |
| 33 | ERA | | USA |
| 34 | Nobska | | USA |
| 35 | Durex Industries | | USA |
| 36 | Progressive Measurements Inc. | | USA |
| 37 | IFM Efector Inc. | | USA |
| 38 | Xylem Inc. | | USA |
| 39 | Emerson Automation Solutions Regulators and Relief Valves | | USA |
| 40 | Endress+Hauser | | USA |
| 41 | Innovative Sensor Technology USA Division | | USA |
| 42 | Balluff Inc. | | USA |
| 43 | Swan Analytical USA Inc. | | USA |
| 44 | Kinematics & Controls Corporation | | USA |
| 45 | ABB E-mobility | | USA |
| 46 | KROHNE Inc. | | USA |
| 47 | Hamilton Company | | USA |
| 48 | Telemecanique Sensors | | USA |
| 49 | GENEQ Inc. | | USA |
| 50 | Roscid Technologies | | USA |
| 51 | pHionics Inc. | | USA |
| 52 | Meter Group | | USA |
| 53 | Lindsey Systems | | USA |
| 54 | TT Electronics | | USA |
| 55 | Sensor Development Inc. | | USA |
| 56 | C-Therm Technologies Ltd. | | USA |
| 57 | Madison Company | | USA |
| 58 | Omega Engineering Inc. | | USA |
| 59 | Denver Instrument Co. | | USA |
| 60 | Inframark Water and Infrastructure Services | | USA |
| 61 | H-O-H Water Technology Inc. | | USA |
