- Brentwood Industries, Inc.
- Clean Water Technology
- Drylet, Inc.
- EBARA HG
- EnBiorganic Technologies
- Environetics, Inc.
- Headworks International, Inc.
- HUBER Technology, LLC
- Hydro-Thermal Corporation
- JDV Equipment Corporation
- Lone Star Turbo
- Moleaer
- Ovivo USA, LLC
- Pick Heaters, Inc.
- Tsurumi Pump
- Veolia
- Vogelsang
- Xylem
