1. Atlas Copco AB
2. Baker Hughes
3. Cornell Pump Company
4. Ebara Corporation
5. Flowserve Corporation
6. Gardner Denver
7. Gorman Rupp Company
8. Kirloskar Brothers Ltd.
9. KSB SE & Co. KGaA
10. Ruhrpumpen Group
11. Schlumberger Limited
12. Sulzer Ltd.
13. The Weir Group PLC
14. Thompson Pump and Manufacturing Company
15. WILO SE
16. Xylem Inc.