- AK Industries
- Composite Access Products (CAP)
- EJ
- Environmental Coatings LLC
- Gorman-Rupp Pumps
- Halliday Products
- Liberty Pumps
- Linabond, Inc.
- NOV Fiber Glass Systems
- PRIMEX
- Protective Liner Systems, Inc.
- RELINER/Duran Inc.
- Sauereisen, Inc.
- SJE Rhombus®
- Smith & Loveless, Inc.
- TITUS Wastewater Solutions Inc.
- TOPP Industries, Inc.
