- AES by Infiltrator
- Anua
- BioMicrobics, Inc.
- BrenLin Company, Inc.
- Crane Pumps & Systems
- Crest Precast, Inc.
- E-Z Treat Inc.
- Eljen Corporation
- FujiClean USA
- Geomatrix Systems, LLC
- Infiltrator Water Technologies, LLC
- Jet Inc.
- Norweco, Inc.
- Orenco Systems, Inc.
- Sim/Tech Filter Inc.
- SJE Rhombus®
- SludgeHammer Group, Ltd.
- Wholesale Septic Supply
- Wieser Concrete
