Septic System/Components
- Advanced Drainage Systems, Inc.
- Aquaworx by Infiltrator
- BioMicrobics Inc. & SeptiTech (subsidiary; Maine)
- Delta Treatment Systems, LLC
- Eljen Corporation
- EZflow by Infiltrator
- Infiltrator Tanks
- Infiltrator Water Technologies, LLC
- Jet, Inc.
- Norweco, Inc.
- Orenco Systems, Inc.
- Polylok, Inc.
- Presby Environmental
- Quick4 by Infiltrator
- Roth North America
- Sim/Tech Filter Inc.
- SJE Rhombus®
- TUF-TITE, Inc.