Water treatment solution providers, shortlisted.

VLS Environmental Solutions is an integrated environmental and waste management company headquartered in Houston, Texas, dedicated to helping clients achieve zero-waste goals. Operating more than 50 locations nationwide with over 1,400 employees and 10,000 generator clients, VLS provides waste management, hazardous waste handling, industrial services, railcar cleaning and repair, and marine services. The company emphasizes landfill avoidance and beneficial reuse, reporting hundreds of thousands of tons of waste diverted from landfills, and serves industrial customers including the chemicals sector.

Jacobs is a global professional services company headquartered in Dallas, Texas, United States, delivering science based, digitally enabled, end to end solutions from consulting and advisory through design and implementation. The company operates in roughly 40 countries with around 47,000 employees and approximately 12 billion dollars in annual revenue, serving infrastructure, advanced manufacturing, environmental, and technology sectors. In water, Jacobs provides comprehensive infrastructure services spanning water treatment, wastewater treatment, water reuse, water conveyance and storage, water resources management, and industrial water solutions. The firm applies AI enabled tools to plan, design, deliver, and operate complex water infrastructure, including digital twins, resource recovery, and advisory services for utilities and industrial clients worldwide.

Crystal Quest is a water filtration and treatment company headquartered in Kennesaw, Georgia, United States, that manufactures and distributes purification systems for residential, commercial, and industrial applications. The company designs customized whole-house, point-of-use, and point-of-entry systems engineered to address a wide range of contaminant concerns, including arsenic, nitrate, lead, fluoride, tannins, and turbidity. Building its products in the USA, Crystal Quest combines multiple media and membrane technologies to deliver up to 99 percent contaminant reduction across drinking water, process water, and softening needs.

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.

Watertech of America, Inc. is an industrial water treatment company founded in 1980 and headquartered in Greenfield, Wisconsin, United States. The firm combines total system management with chemical and equipment expertise to treat water and wastewater across industrial and commercial markets, serving customers in Wisconsin, Minnesota, Iowa, and northern Illinois. Its programs cover boiler water, cooling water, closed loop, and wastewater applications for clients in the energy, food and beverage, dairy, healthcare, commercial real estate, and manufacturing industries. Watertech also offers smart testing and analytics, including its Aquassist smartphone app that automates water testing, alongside hands free chemical delivery, water analysis, and consulting services focused on system efficiency and sustainability.

Complete Water Solutions is a nationwide industrial and commercial water treatment company headquartered in Twin Lakes, Wisconsin. Woman-owned and family-operated with more than 25 years in industrial water systems, the company designs, installs, maintains, and repairs water purification equipment for commercial, industrial, laboratory, medical, food and beverage, restaurant, parts washing, and electroplating sectors. It specializes in reverse osmosis systems, deionized water service, and 24/7 emergency repair, and services equipment from major brands including DOW Filmtec, GE, SUEZ, Siemens, and Veolia.

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.

IER Solutions is a water and wastewater treatment chemical and equipment supplier headquartered in Spokane, Washington, with additional plants in Iowa, Texas, and Washington. Owned by Australian company Calix, IER provides safe, earth-friendly alternatives to caustic soda for pH neutralization, along with on-site technical services for alkalinity control, odor and corrosion control, hydrogen sulfide sequestration, phosphorus removal, sludge compaction, and biogas waste management. The company serves food and beverage, meat and dairy processing, municipal wastewater, winery and brewery, and microelectronics industries with its magnesium hydroxide based product lines.

Solar Water Solutions Oy is a Finnish clean-technology manufacturer headquartered in Espoo, Finland, that builds solar-powered reverse osmosis desalination systems converting seawater or brackish water into drinking water using photovoltaic energy instead of diesel or grid electricity. Its modular, plug-and-play systems serve municipal water utilities, remote communities, resorts, agriculture, emergency response, and off-grid residential and industrial users. Systems handle salinity up to 36,000 mg/L TDS at capacities to 1,000 m3 per day, with typical energy use of 1 to 2 kWh per m3. The company develops and manufactures systems jointly with German solar pump maker LORENTZ.

Antea Group is an international environment, health, safety, and sustainability consulting firm. Its US operation, Antea Group USA, is headquartered in St. Paul, Minnesota, United States, and works with many of the world's most sustainable companies to address ESG and business challenges. The firm's services span environmental remediation, regulatory compliance, worker safety, merger and acquisition support, and sustainability strategy. Its dedicated water stewardship team specializes in water strategy and program advisory, water risk assessments, water efficiency and innovation, and water footprinting. As a CDP accredited consultancy provider, Antea Group also delivers CDP disclosure and corporate reporting services covering the Climate Change, Water Security, and Forests questionnaires. Through sister companies in Belgium, Brazil, France, India, the Netherlands, Poland, Spain, and the United Kingdom, the group draws on more than 3,200 employees across over 75 offices worldwide.

ChemREADY is a water and wastewater treatment company headquartered in Twinsburg, Ohio, providing integrated solutions that combine treatment chemistry, equipment, field services, and remote monitoring. The company serves industrial and commercial clients with cooling tower, boiler, and closed-loop water treatment, Legionella risk management and disinfection, industrial wastewater treatment, and dewatering and solids management. ChemREADY emphasizes system reliability and regulatory compliance, supplying ultra-concentrated chemical formulations, filter presses, and digital controllers for phosphorus removal, odor control, and water safety management.

H2O Inc. is a water and waste systems manufacturer headquartered in Lafayette, Louisiana, designing and building water treatment solutions for demanding marine and offshore environments. The company specializes in systems for offshore oil and gas platforms, FPSOs, and commercial vessels, including freshwater desalination, marine sanitation devices, biofouling control, and bilge water treatment. With more than 3,000 systems installed globally, H2O Inc. supplies certified equipment and provides equipment rentals along with 24/7 technical support and field service.

WECO Filters is a water filtration manufacturer based in Long Beach, California, producing and selling water filtration, softening, and purification systems for residential, commercial, and specialized applications. The company offers custom system design driven by water quality reports, professional installation through a network of plumbing subcontractors, free consultations with certified water specialists, and water testing. WECO specializes in treating contaminants including chlorine, hydrogen sulfide, hardness, sediment, heavy metals, fluoride, arsenic, and microorganisms across its reverse osmosis, ultrafiltration, and backwashing filter product lines.

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.

WSP is a global engineering and professional services consultancy headquartered in Montreal, Canada, serving governments, municipalities, utilities, and industrial clients across the planning, design, delivery, and maintenance of water infrastructure. In the water sector, WSP supports collection and conveyance systems for water and wastewater, condition assessments, risk-based planning, and upgrade strategies that extend asset life and improve system performance. The firm develops digital water solutions using smart sensors, real-time monitoring, predictive analytics, and digital twins that combine engineering models with operational data. WSP combines global technical depth with local insight to deliver integrated water management, hydraulic modeling, infrastructure renewal, and sustainability strategy.

Aqua-Pure Filters & Water Systems is a water filtration company headquartered in Las Vegas, Nevada, United States, operating as an authorized Solventum distributor (the brand formerly known as 3M Drinking Water Filtration, now Aqua-Pure Water Filtration). The company sells water filtration systems and replacement filters for both residential and commercial foodservice applications, including whole house systems, drinking water and under sink systems, reverse osmosis systems, water softeners, iron removal, and UV purification. Its product range targets contaminant reduction across sediment, chlorine and chloramine, lead, microplastics, scale, arsenic, and PFAS/PFOS, and it supplies replacement cartridges, housings, and parts for ice machines, espresso, and coffee and tea equipment.

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.

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.

BIOROCK, operating as BIOROCK ROTOMADE SA, is a Luxembourg based manufacturer of non-electric wastewater treatment systems headquartered in Ellange (Mondorf), Luxembourg. The company designs and produces compact, eco-friendly sewage treatment plants for residential, commercial, and institutional applications, ranging from single homes to communities serving up to 10,000 population equivalents. Its product range includes the easyRock, Beasy, Monoblock, Ecorock, Multirock, and Biorotor lines. BIOROCK systems are built around a proprietary media carrier and a three-stage treatment process of primary clarification, bioreactor purification, and gravity or pump discharge, with most systems requiring no electricity and no moving parts for low-maintenance operation.

Aquatech is a global water and process technology company headquartered in Canonsburg, Pennsylvania, United States, focused on solving water scarcity and ensuring critical minerals security. With more than 43 years of operation, over 2,000 installations worldwide, and 700 plus water experts globally, the company treats roughly 1.6 billion gallons of water per day. Its core areas include water reuse and zero liquid discharge, desalination, industrial water treatment, wastewater management, and critical minerals recovery such as lithium extraction from brines. Aquatech delivers mobile water solutions, design build own operate and maintain (DBOOM) contracts, operations and maintenance support, aftermarket retrofits, and AI powered digital optimization.