1. Airtac International Group
2. Anshan solenoid valve Co. Ltd.
3. Bosch Rexroth Corporation by Robert Bosch GmbH
4. CEME S.p.A.
5. Christian B?rkert GmbH & Co. KG
6. CKD Corporation
7. Curtiss-Wright Corporation
8. Danfoss A/S
9. Demark (Wuhan) Technology Co. Ltd.
10. Emerson Electric Co.
11. General Electric Company
12. GSR Ventiltechnik GmbH & Co. KG
13. IMI Critical Engineering
14. IMI PLC
15. Ingersoll Rand
16. Jekon Controls
17. Kanekosangyo Corporation
18. Kendrion N.V.
19. MAC Valves Inc.
20. Mitsubishi Electric Corporation
21. Ningbo Jiaerling Pneumatic Machinery Co. Ltd.
22. Norgren Inc.
23. ODE S.r.l.
24. Parker-Hannifin Corporation
25. Peter Paul Electronics Co. Inc.
26. Products ? Eugen Seitz AG ?Eugen Seitz AG
27. Rotex Automation Limited
28. Schneider Electric SE
29. Siemens AG
30. SMC Corporation Pvt. Ltd.
31. Takasago Electric Inc.
32. The Lee Company
33. Uflow Automation
34. Valtorc International
35. Yashima Export & Import Co. Ltd.