- A.Y. McDonald Mfg. Co.
- Asahi/America, Inc.
- Cambridge Brass
- Cla-Val Company
- Comet
- Core & Main
- Dallas Specialty & Mfg. Co.
- Flomatic Valves
- General Pump
- GIANT INDUSTRIES INC
- Halliday Products
- Milwaukee Rubber Products, Inc.
- Mueller
- Proco Products, Inc.
- Suttner America Company
- Vacuum Sales, Inc.
- Val-Matic Valve & Mfg. Corp.
- Valley Industries
- Valworx
