Water treatment solution providers, shortlisted.

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.

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.

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.

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.

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.

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.

ABB is a global technology company headquartered in Zurich (Oerlikon), Switzerland, with a history of innovation spanning more than 130 years across its Electrification, Industrial Automation, Motion, and Robotics and Discrete Automation businesses. For the water and wastewater sector, ABB delivers process automation, electrification, instrumentation, and digital solutions that help utilities and industrial plants run treatment processes more safely, efficiently, and sustainably. Its ABB Ability Smart Solution for Wastewater uses predictive analytics to forecast inflow alongside weather patterns, reducing the risk of overflows and regulatory fines. ABB combines drives, motors, analyzers, and control systems with cloud-connected digital platforms to optimize energy use across water treatment operations.

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.

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.

Smith & Loveless, Inc. is a water and wastewater equipment engineering and manufacturing company headquartered in Lenexa, Kansas, United States, founded in 1946. The company designs, builds, and supports pumping stations, headworks systems, and complete treatment plants, manufacturing 100 percent of its equipment at U.S. facilities in Lenexa, Kansas and Norwalk, California. With more than 80 years of experience and installations on all seven continents, Smith & Loveless specializes in inlet works, solids separation, grit removal, and advanced biological and membrane treatment for municipal and industrial clients.

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.

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.

NORAM Engineering and Constructors Ltd, founded in 1988 and headquartered in Vancouver, British Columbia, develops, engineers, and commercializes process technologies for resource industries. Its Pulp and Paper division delivers System Closure and effluent treatment solutions, with CleanFlow systems operating in mills across Sweden and Canada. NORAM provides full EPC scope including engineering, pilot plants, modular plants, custom fabrication, and on-site commissioning for wastewater and chemical process projects.

Qatium, headquartered in Valencia, Spain, is an AI-powered digital water management platform for utilities. It builds a digital replica of the distribution network to simulate scenarios, optimize pressure, minimize non-revenue water, and detect leaks. The ISO 27001-certified platform integrates IoT sensors and hydraulic modeling, and offers an AI Build Studio and marketplace for custom apps, helping utilities improve resilience and efficiency.

Cambi ASA, headquartered near Oslo, Norway, pioneered thermal hydrolysis for sewage sludge and organic waste, commissioning its first full-scale plant in 1996. The CambiTHP process pretreats sludge ahead of anaerobic digestion to boost biogas yield by up to 50 percent, triple digester throughput, and halve final biosolids volume, turning municipal and industrial waste streams into renewable energy and Class A biosolids worldwide.

MITA Water Technologies, founded in 1971 in Siziano near Pavia, Italy, designs wastewater treatment equipment with deep expertise in cloth filtration and physical separation. Its Oilpack lamella-pack oil separators and Mitadaf dissolved air flotation units target oil and grease removal, while pile cloth filters, Filtrasand sand filters and Biorulli biological disc rotors handle tertiary filtration, suspended solids and BOD/COD reduction for reuse. Part of Axius Water, the firm offers pilot testing, start-up, revamping and remote monitoring.

Minetek, established in 1984 in Australia with international offices including Houston, Texas, engineers air, water, and sound management solutions for the global mining and industrial sectors. Its Water division specializes in managing acid mine drainage and excess process water through land-based and floating evaporation technology and Zero Liquid Discharge systems. Minetek has completed over 2,800 projects across more than 60 countries, handling a wide range of challenging water qualities.

AZUD, founded in 1989 in the arid Murcia region of southeastern Spain, manufactures water efficiency technologies for agriculture and industry. It is a benchmark producer of drip irrigation, self-cleaning filtration, and decentralized compact water treatment systems, helping growers reuse reclaimed water and apply precision irrigation. Product lines include AZUD HELIX automatic filters, AZUD WATERTECH treatment units, and the AZUD QGROW digital farming platform for sustainable, profitable agriculture.

PolyGone Systems, founded by Princeton University graduates in the United States, develops biomimetic filtration to intercept microplastics across wastewater plants, rivers, reservoirs and treatment channels. Its patented Artificial Root Filter uses plant-root-inspired media to capture microplastic particles, achieving about 98 percent filtration performance and removing 520 million particles in a pilot at the ACUA wastewater plant in Atlantic City, New Jersey. The company also runs lab-based microplastic analysis from 399 dollars per sample.

Erma First ESK Engineering Solutions S.A., founded in 2009 and headquartered in Perama near Athens, Greece, manufactures ballast water treatment systems and sustainable maritime technologies. Its full-flow electrolysis BWTS was the first of its type to earn US Coast Guard type approval. The company also delivers carbon capture, energy-saving devices, and alternative maritime power solutions for the global marine and offshore sector.