- AES by Infiltrator
- BioMicrobics, Inc.
- BrenLin Company, Inc.
- Crest Precast, Inc.
- Eljen Corporation
- Fiberglass Tank Solutions
- FujiClean USA
- Infiltrator Water Technologies, LLC
- Jet Inc.
- Norweco, Inc.
- Orenco Systems, Inc.
- Sim/Tech Filter Inc.
- SJE Rhombus®
- The Dirty Bird
- Waterloo Biofilter Systems Inc.
- Wholesale Septic Supply
- Wieser Concrete
