- AES by Infiltrator
- Alita Industries, Inc.
- BioMicrobics, Inc.
- BrenLin Company, Inc.
- Eljen Corporation
- Industrial Odor Control
- Infiltrator Water Technologies, LLC
- Jet Inc.
- Kistner Concrete Products, Inc.
- Orenco Systems, Inc.
- Polylok, Inc.
- Septic Products Inc. (SPI)
- Sim/Tech Filter Inc.
- SJE Rhombus®
- The Dirty Bird
- TUF-TITE, Inc.
- Wholesale Septic Supply
