Water treatment solution providers, shortlisted.

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.

Elemental Water Makers B.V., founded in 2012 in Delft, Netherlands by TU Delft engineers Sid Vollebregt and Reinoud Feenstra, builds solar-driven reverse osmosis desalination systems. Its battery-free technology uses energy recovery to cut electricity demand by roughly 70 percent, enabling off-grid seawater and brackish water desalination. The company has supplied clean water to over 100,000 people in remote coastal and island communities.

Oil Skimmers, Inc., headquartered in Cleveland, Ohio and operating for over 50 years, manufactures oil removal equipment that separates oil, fat and grease from process water, wash water, coolant and wastewater. Its Brill tube-type skimmers, floating weir skimmers and oil water separators with Active Oil Removal recover up to 99 percent of free-floating oils across food processing, metal machining, petrochemical and marine sectors. Product lines include CoolSkim, Skim 1st Tank, OilyBelt and the ORTS oil removal and transfer system.

Envirogen Technologies, headquartered in Kingwood, Texas, is an international provider of environmental technology and process water solutions with more than 30 years of experience. It specializes in outsourced operations and maintenance services, offering full-time staffing, routine service contracts, and emergency response for water treatment plants. Envirogen serves mining, petrochemical, food and beverage, and municipal sectors using ion exchange, hollow fiber membranes, and mobile deionization fleets.

C&G Depurazione Industriale Srl, founded in 1971 in Rignano sull'Arno near Florence, Italy, designs and manufactures industrial wastewater treatment systems. Originally built for the galvanic and metal-plating industry, it now serves printing, cosmetic, pharmaceutical, biotechnology, and food sectors, with over 2,000 plants sold in Italy and abroad. C&G specializes in vacuum evaporators, ion exchange demineralizers, reverse osmosis, and Zero Liquid Discharge systems, backed by global technician support.

Genesis Water Technologies, headquartered in Maitland, Florida, designs modular water and wastewater treatment systems plus specialty media and flocculants for industrial clients. The firm addresses silica removal, cooling tower cycles of concentration, scale and corrosion control, and water recycling for data centers and manufacturers. Named offerings include the Zeoturb bio-organic flocculant, GCAT catalytic membrane protection, and Genclean cooling tower tablets, backed by engineering process optimization consulting.

Optimarin AS, founded in 1994 in Stavanger, Norway, was among the first companies to develop ballast water treatment for ships. Its systems combine self-cleaning back-flushing filters with UV irradiation to neutralize invasive marine organisms, viruses, and bacteria without chemicals or harmful by-products. In 2016 it became the first vendor approved under the stricter US Coast Guard standard, serving global marine and offshore fleets.

Arvia Technology, based in Runcorn, Cheshire, UK, builds advanced tertiary wastewater systems that combine adsorption with electrochemical oxidation to remove persistent organics from industrial effluent. Its patented Nyex media platform (Rosalox, Ellenox, Florenox) targets color removal, micropollutants, COD reduction, pesticides and active pharmaceutical ingredients, enabling industrial water reuse and zero liquid discharge across pharma, textiles, agrochemical and semiconductor sectors. Services include treatability trials and plant hire.

MECO Incorporated, headquartered in Louisiana with operations in California, Singapore, and Ireland, has built water purification equipment for over 90 years and is now a Grundfos company. It is a leading supplier of pharmaceutical and biopharmaceutical water systems, engineering Water for Injection (WFI) and Purified Water generation and distribution skids. MECO designs vapor compression distillation, reverse osmosis, and pure steam systems plus smartANALYTICS monitoring for life-science plants worldwide.

Sodai is a Milan, Italy environmental engineering company with more than 30 years of experience in purifying and treating primary waters and industrial process fluids. It designs and operates tailor-made and standard plants for desalination, potabilization, purification, oily water treatment, water reuse and zero liquid discharge, serving Oil, Gas and Power clients including operating centers for ENI and ENEL. The company works across 28 countries and holds ISO 9001, ISO 14001 and ISO 45001 certification.

Ostara, founded in 2005 and headquartered in Vancouver, Canada, recovers nutrients from municipal and industrial wastewater and converts them into commercial fertilizer. Its proprietary Pearl fluidized-bed reactor crystallizes phosphorus and nitrogen into struvite-based Crystal Green slow-release fertilizer, helping water resource recovery facilities meet discharge limits, prevent struvite scaling, and generate revenue from recovered nutrients across North America and Europe.

GEH Wasserchemie, founded in 1997 near Osnabrueck, Germany, manufactures patented granular ferric hydroxide adsorption media (GEH and GEH 102) for removing arsenic, lead, chromium, copper, manganese, nickel, zinc and phosphate from drinking water and process water. The media complies with EN DIN 15029, products treat roughly 180 million cubic meters of water per year, and the company operates in 61 countries with ISO 9001, 14001 and 50001 certification.

Clean TeQ Water, headquartered in Mount Waverley, Victoria, Australia, develops and delivers advanced water treatment and resource recovery technologies. Its portfolio includes CIF continuous ionic filtration, CLEAN-IX metal recovery, DESALX membrane-free desalination, EVAPX low-energy evaporation, and PHOSPHIX phosphorus recovery, applied to zero and minimum liquid discharge, brackish desalination, and metals recovery via EPC and build-own-operate models.

Ecofario, founded in 2013 and headquartered in Munich, Germany, develops filterless microplastic removal technology for municipal and industrial wastewater treatment plants. Its High-G-Separator uses a high-gravity hydrocyclone principle to remove up to 99.9 percent of microplastics, including adhering pollutants, without filter media, and also serves contaminant rejection, oil extraction and fiber-loss reduction. The company partnered with Valmet for automation and was named one of Germany's most sustainable startups in the Resources category.