Water treatment solution providers, shortlisted.

Depur Padana Acque is an Italian company with over 50 years in industrial wastewater treatment, serving industrial and agri-food sectors. It designs, installs and maintains purification systems including membrane bioreactors, oil and grease removal, stormwater treatment and biological treatment, offering plant revamping, treatment chemicals and round-the-clock technical assistance.

Rainwater Management Solutions is a United States supplier and system integrator with over 70 years of experience in rainwater and stormwater management. It designs and installs turnkey rainwater harvesting and greywater reuse systems for residential, commercial, industrial and agricultural projects, including filtration, UV disinfection and proprietary tank sizing.

PC Construction is a United States employee-owned general contractor that builds water and wastewater treatment plants, buildings and infrastructure along the East Coast. Using design-build and collaborative delivery, it partners with municipalities, engineers and designers to construct and upgrade complex treatment facilities and civil infrastructure projects.

IMEDAGUA is a Spanish water treatment company based in Alicante that designs, manufactures and installs custom treatment plants for potable and wastewater. Founded by engineers, it provides reverse osmosis, filtration, biological reactors and solar-powered potabilization for municipal and industrial clients, including arsenic and heavy metal removal and compact containerized systems.

Ion Exchange is an India-based pioneer in total water and environment management with over 60 years of experience. It provides ion exchange resins, membrane systems, zero liquid discharge, wastewater treatment, specialty chemicals and engineered plants for industrial, municipal and infrastructure clients, along with operations, maintenance and project financing services globally.

GEDAR is a Spanish water treatment company providing comprehensive solutions for potabilization, descaling, filtration, reverse osmosis and wastewater purification. It designs, installs and maintains industrial and residential treatment plants using biological aerobic treatment, membrane bioreactors, physical-chemical processes and sludge dehydration filters, and manages wastewater treatment plant operation for diverse clients.

Select Water Solutions is a United States water management and fluid chemistry company serving the oil and gas industry, with deep operations in the Permian Basin. It specializes in produced water recycling, treatment, transfer and disposal, building and operating water infrastructure networks and providing chemical completions, automation and sustainability consulting for upstream operators.

EnviroFALK is a German manufacturer of process water and ultrapure water treatment systems with over 30 years of expertise. It designs, builds and services plants for manufacturing, laboratories, hospitals, medical technology and green hydrogen, combining reverse osmosis, electrodeionization, membrane filtration and ion exchange with regeneration and holistic water management services.

Ecosistemi srl is an Italian water treatment company with over 25 years of experience designing, building, installing, operating and maintaining primary and wastewater treatment plants. It supplies water softeners, reverse osmosis, demineralization and UV disinfection systems together with analytical water characterization, technical assistance and full lifecycle service for industrial and municipal clients.

Epic Cleantec is a San Francisco, California based water technology company specializing in decentralized, onsite water treatment and reuse systems for buildings. The company designs, engineers, permits, and installs water recycling solutions that recover three outputs from a building's wastewater: recycled water for non-potable use, recovered heat energy, and soil amendments. Its flagship OneWater and OneWater Rain systems serve residential and commercial developments, corporate campuses, hotels, data centers, stadiums, and breweries, claiming up to 95 percent reductions in water demand and utility fees. Epic Cleantec also provides operations and maintenance support along with project financing options.

Gradiant is an industrial water treatment solutions and technology company headquartered in Woburn, Massachusetts, United States, founded at MIT in 2013 with over 1,300 employees worldwide. The company provides complete, site-wide solutions that combine proprietary technology, engineering, and customized chemicals to help industries reduce freshwater use, reclaim valuable resources, and renew wastewater into freshwater. Gradiant specializes in minimum and zero liquid discharge, ultrapure water, PFAS and emerging-contaminant removal, and resource recovery for sectors including semiconductors, pharmaceuticals, food and beverage, and lithium and critical minerals.

NEWater is a professional water treatment equipment manufacturer founded in 2010 and headquartered in Suzhou High-tech Zone, Jiangsu, China. The company provides turn-key water purification solutions for industrial and municipal clients, designing, sourcing, and installing custom systems that address water scarcity, wastewater management, and water quality improvement. Its product range covers reverse osmosis, seawater desalination, ultrafiltration, nanofiltration, deionized and ultrapure water, and containerized modular systems. NEWater serves agriculture, pharmaceuticals, food and beverage, power generation, semiconductor manufacturing, healthcare, mining, and municipal water supply, backing equipment with a one-year warranty and lifetime maintenance services.

Advanced Chemical Systems, Inc. (ACS) is a water and wastewater treatment company headquartered in Franklin, Wisconsin. Founded in 1977, ACS provides custom chemical and equipment solutions for industrial wastewater treatment across a wide range of facilities and applications, including boilers, cooling towers, plating, parts washing, and machining processes. The company combines treatment chemistry with equipment, water sample analysis, compliance consulting, and staff training to help industrial sites meet discharge and process water quality requirements.

Culligan Industrial Water designs and supplies industrial and commercial water treatment equipment and systems in the United States, targeting specific process water problems to produce water that meets established quality standards. The company specializes in high purity water systems, industrial water filtration, and commercial water treatment across industries such as healthcare, laboratories, and hospitality. Its offerings include dialysis-grade and ultrapure laboratory water, portable exchange deionization service, custom engineering, and maintenance for water treatment systems of all makes and models.

Pall Corporation is a global supplier of filtration, separation, and purification solutions, addressing complex fluid and gas processing challenges across a broad range of industries. Founded in 1946 and headquartered in Port Washington, New York, the company is now part of Danaher Corporation. Pall serves aerospace and defense, chemicals and polymers, food and beverage, microelectronics, oil and gas, and power generation markets. Its industrial water and process offerings include membrane filtration systems, microfiltration, and ceramic membrane technology used to remove contaminants and protect downstream equipment. The company engineers both single-use and system-scale filtration products for high-purity and high-flow applications.

VVater is a next-generation water technology company headquartered in West Lake Hills, Texas, United States, focused on solving water scarcity through advanced purification and reuse. The company develops consumable-free treatment systems that purify water to ultrapure standards while using significantly less energy than conventional reverse osmosis, serving industrial, municipal, and recreational sectors. VVater specializes in circular water economies, supplying solutions for direct potable reuse, PFAS destruction, industrial process water, zero liquid discharge, and large-scale artificial aquatic facilities such as surf parks and artificial beaches.

Enviromatch Inc. is a United States based water and wastewater treatment company headquartered in Murrieta, California, with over thirty years of experience in the design, engineering, manufacturing, and supply of treatment systems. The company specializes in containerized, factory-assembled water treatment plants delivered in standard 10-ft, 20-ft, and 40-ft ISO shipping containers that can be commissioned within days of arriving on site. Enviromatch builds seawater and brackish water desalination systems, including its FreshMatch SWRO reverse osmosis units for commercial, industrial, marine, and municipal applications. Project experience spans seawater desalination for resorts, brackish water reverse osmosis for water-scarce regions such as Qatar, and sewage treatment for new developments.

NSI Mobile Water Solutions is a provider of adaptable mobile and rental water and wastewater treatment systems, headquartered in Stoke-on-Trent, United Kingdom, and operating as part of Nijhuis Saur Industries within the SAUR Group. The company delivers temporary and long-term treatment capacity to industrial sites without requiring fixed infrastructure investment, supporting needs from 24/7 emergency response to multi-year contracts. With over 25 years of experience, NSI specializes in containerized, trailer-mounted, and skid-based plant that can be deployed rapidly across manufacturing, power, and process industries.

Chem-Aqua is an industrial water treatment company providing customized programs for boilers, cooling systems, and process water across more than 55 countries. The company designs bespoke treatment programs that aim to reduce water, energy, and maintenance costs while protecting system reliability and safety. Its work spans steam boiler and closed-loop treatment, cooling tower and chiller treatment, Legionella risk management, and microbiological and biofilm control. Chem-Aqua is the water treatment division of NCH Corporation, headquartered in Irving, Texas, and now operates as part of Solenis following acquisition. The company reports over 34,000 implemented programs and more than 1,600 water treatment team members worldwide.

Metro Water Recovery is the largest wastewater treatment provider in the Rocky Mountain West, headquartered at 6450 York Street in Denver, Colorado. The public agency serves over 2 million people across 65 member cities and sanitation districts within an 817-square-mile region spanning Denver and portions of Adams, Arapahoe, Jefferson, Douglas, and Weld counties. Its mission is to protect regional health and the environment by cleaning water and recovering resources. Metro Water Recovery operates three facilities, the Robert W. Hite Treatment Facility, the Northern Treatment Plant, and the METROGRO Farm, providing wastewater transmission and treatment, biosolids processing, thermal energy recovery, and industrial pretreatment.