Anaerobic Treatment
- Byo-Gon, Inc.
- Enterprise Specialty Products
- Environetics, Inc.
- Eurus Blower, Inc.
- Evoqua Water Technologies LLC
- Headworks International, Inc.
- Industrial & Environmental Concepts, Inc.
- JDV Equipment Corporation
- Lystek International
- Ostara Nutrient Recovery Technologies
- Ovivo USA, LLC
- Praxair, Inc.
- Sierra Environmental Technologies, LLC
- Vogelsang
- Water Warriors, Inc.