- A.Y. McDonald Mfg. Co.
- AQUAGUARD LLC
- AquaMotion, Inc.
- Arcan Enterprises
- Arrowhead Brass
- Ashland Pump
- Bemis Manufacturing Co.
- Bio-Clean / Statewide Supply, Inc.
- Bradford White Water Heaters
- Central Oklahoma Winnelson
- Century Chemical Corp.
- Charlotte Pipe and Foundry Co.
- Comet
- Corro-Protec
- Dallas Specialty & Mfg. Co.
- Essency Water Heaters
- FIBERSCOPE
- General Pump
- Heat-flo LLC
- KEG Technologies, Inc.
- LevTech, LLC
- Liberty Pumps
- Milwaukee Tool
- Oatey Co.
- Picote Solutions
- Prime Resins
- QuickFitting
- RauschUSA
- Rheem Mfg. Co.
- SJE Rhombus®
- Source ONE Environmental
- Southland Tool Mfg. Inc.
- Suttner America Company
- U.S. Boiler Company, Inc.
- Weil-McLain
- Zoeller Pump Company
