 Genesis Systems | | GreenTech, Sustainability, Water, Water Purification | Tampa, Florida, United States | Genesis Systems provides methods for generating sustainable water resources and transforming the environment. |
 ZwitterCo | | Food and Beverage, Recycling, Sustainability, Waste Management, Water, Water Purification | Woburn, Massachusetts, United States | ZwitterCo provides membrane solutions for the treatment of highly-impaired wastewater. |
 Evove | | Environmental Consulting, Nanotechnology, Water Purification | Daresbury, Halton, United Kingdom | Evove uses nanotechnology and additive manufacturing to develop advanced membrane technology to reduce the impact of water filtration. |
 ChemFinity Technologies | | Chemical, Chemical Engineering, Manufacturing, Water Purification | Brooklyn, New York, United States | ChemFinity Technologies is a chemical company that offers critical metal recovery, water purification, and gas separation services. |
 Ionomr | | Advanced Materials, Battery, Chemical, Clean Energy, Electronics, Fuel Cell, Information Technology, Renewable Energy, Water, Water Purification | Vancouver, British Columbia, Canada | Ionomr makes Aemion™ & Pemion™, next-gen ion-exchange materials for breakthrough clean technology applications involving electrochemistry. |
 Southern Water | | Commercial, Water, Water Purification | Worthing, West Sussex, United Kingdom | Southern Water is a private utility company responsible for public wastewater collection and treatment. |
 HydroLeap | | Manufacturing, Water, Water Purification | Singapore, Central Region, Singapore | Hydropleap provides advanced environmental-friendly technological water treatment solutions. |
 Aquanexa | | Water, Water Purification | Milan, Lombardia, Italy | Aquanexa is an industrial utility group that specializes in management, and digitalization of water networks, and associated assets. |
 UNISERS | | Nanotechnology, Water Purification | Zürich, Zurich, Switzerland | UNISERS provides universal liquid analyzers based on nanotechnology and Raman spectroscopy. |
 CellX Biosolutions | | Biotechnology, Waste Management, Water Purification | Zürich, Zurich, Switzerland | CellX Biosolutions is the Sustainable treatment of chemical waste. |