1. Atlas Copco AB
2. Bosch Rexroth AG
3. Bucher Hydraulics GmbH
4. Daikin Industries Ltd.
5. Dana Incorporated
6. Danfoss A/S
7. Dynex/Rivett Inc.
8. Eaton Corporation PLC
9. EBSCO Industries Inc.
10. HAWE Hydraulik SE
11. HYDAC International GmbH
12. Hydraproducts Ltd.
13. Kawasaki Heavy Industries Ltd.
14. LUKAS Hydraulik GmbH
15. Moog Inc.
16. Nachi-Fujikoshi Corporation
17. Oilgear Company
18. Parker Hannifin Corporation
19. PROTEM USA LLC
20. SAF-HOLLAND GmbH
21. Shibaura Machine Co. Ltd.
22. Webtec Products Limited
23. Yuci Yuken Hydraulics Co. Ltd.
24. Yuken Kogyo Co. Ltd.