Sludge Reduction/Treatment
- Andritz Separation, Inc.
- Aqualitec Corp.
- Aquarius Technologies, LLC
- Bio-Nomic Services, Inc.
- Bright Technologies, Division of Sebright Products, Inc.
- Brown Bear Corporation
- Byo-Gon, Inc.
- Centrisys/CNP
- Flottweg Separation Technology, Inc.
- HUBER Technology, Inc.
- Hurst Boiler
- International Dioxcide / ERCO Worldwide
- Lystek International
- Markland Specialty Engineering Ltd.
- Ostara Nutrient Recovery Technologies
- Ovivo USA, LLC
- Park Process
- Press Technology & Mfg., Inc.
- SSI Aeration, Inc.
- Water Warriors, Inc.