- Alfa Laval
- AVK Holding AS
- Broer Group
- CIRCOR International Inc.
- Crane Co.
- Curtiss-Wright Corporation
- Danfoss AS
- DUNAN
- Emerson Electric Co.
- Flowserve Corporation
- General Electric (Baker Hughes)
- Georg Fischer Ltd
- Hitachi Metals Ltd
- Honeywell International Inc.
- IMI PLC
- ITT Inc.
- KITZ Corporation
- Mueller Water Products Inc.
- NIBCO INC.
- Okano Valve Mfg. Co. Ltd
- Saint-Gobain
- Schlumberger Limited
- TechnipFMC PLC
- The Weir Group PLC
- Valvitalia SpA
- Xylem