Drainfield Components
- AES by Infiltrator (formerly Presby Environmental)
- Arcan Enterprises
- ATL by Infiltrator
- BIOROCK
- Eljen Corporation
- EZflow by Infiltrator
- Geoflow
- Geomatrix Systems, LLC
- Infiltrator Water Technologies, LLC
- Polylok, Inc.
- Quick4 by Infiltrator
- Rissy Plastics, LLC
- Sim/Tech Filter Inc.
- TUF-TITE, Inc.
- Wholesale Septic Supply