- BCR Environmental
- BDP Industries, Inc.
- Centrisys/CNP
- Cleanwater1, Inc.
- Drylet, Inc.
- EBARA HG
- Eden Lakes LLC
- ELODE USA, Inc.
- EnBiorganic Technologies
- Flottweg Separation Technology, Inc.
- Franklin Miller, Inc.
- GEA North America
- GKD-USA, Inc.
- Hurst Boiler
- Hydro-Thermal Corporation
- IEP Technologies
- Kuhn North America, Inc.
- MHF Services (IFCO)
- Oldcastle Infrastructure
- Ovivo USA, LLC
- Parkson Corporation
- Pick Heaters, Inc.
- Shincci - USA
- Trashology
- Trillium Flow Technologies
- Tsurumi Pump
- Vogelsang
