1. Azbil Corporation
2. Badger Meter Inc.
3. Baker Hughes Company
4. Bove Intelligent Technology Co. Ltd.
5. Bronkhorst High-Tech BV
6. Coltraco Ultrasonics
7. Dalian Zero Instrument Technology Co. Ltd.
8. Danfoss A/S
9. EESIFLO Technologies Inc.
10. ELIS PLZE? a.s.
11. Emerson Electric Co.
12. Endress+Hauser Group
13. Fuji Electric Co. Ltd.
14. General Electric Company
15. Honeywell International Inc.
16. HORIBA
Ltd.
17. Katronic AG & Co. KG
18. KROHNE Messtechnik GmbH
19. Lanry Instruments (Shanghai) Co. Ltd.
20. Manas Microsystem Pvt. Ltd.
21. OMEGA Engineering Inc.
22. Panasonic Holdings Corporation
23. Schlumberger Limited
24. Schneider Electric SE
25. SICK AG
26. Siemens AG
27. SONOTEC GmbH
28. STMicroelectronics N.V.
29. Tek-Trol LLC
30. Teledyne Technologies Incorporated
31. Texas Instruments Incorporated
32. Titan Enterprises Ltd.
33. Toshiba Corporation
34. Transus Instruments BV
35. Triton Process Automation Pvt. Ltd.
36. WIKA Alexander Wiegand SE & Co. KG
37. Xylem Inc.