1. ALFA LAVAL Corporate AB
2. Baker Hughes Company
3. Debem Srl
4. EBARA CORPORATION
5. Elliott Company
6. Flowserve Corporation
7. Gemmecotti Srl
8. Halliburton Energy Services Inc.
9. HYDROMASHSERVICE by HMS Group
10. Ingersoll Rand Inc.
11. ITT Goulds Pumps
12. JEE Pumps
13. KSB SE & Co. KGaA
14. Nikkiso Co. Ltd.
15. Rodelta Pumps International
16. Roto Pumps Ltd.
17. Ruhrpumpen Inc.
18. Schmitt Kreiselpumpen GmbH & Co. KG
19. Sulzer Management Ltd.
20. The Gorman-Rupp Company
21. Trillium Flow Technologies
22. Xylem Inc.