Directory
Every corner of the water industry, in one place.
Eight umbrella groups, 127 solution provider pages, 700+ vetted providers. Browse by technology, sector, or contaminant, or post a project and let Aguato match you.
- Umbrella groups
- 8
- Solution provider pages
- 127
- Vetted providers
- 700+
Core processes · 37 pages
Treatment Technologies
Treatment Technologies covers the full stack of water and wastewater treatment processes, from pretreatment and filtration to membranes, disinfection, and desalination. These are the core unit operations that define how a plant performs.
Industrial Water Treatment Companies
End-to-end industrial water treatment companies covering process water, cooling, boiler feed, and wastewater across heavy-industry sites.
Water Filtration Systems Companies
Filtration system providers spanning media, cartridge, bag, and membrane filters for municipal, commercial, and industrial applications.
Industrial Water Filtration Companies
Heavy-duty filtration solution providers for industrial process water, including self-cleaning, multimedia, and high-flow filtration platforms.
Commercial Water Treatment Companies
Treatment providers serving commercial buildings, hospitality, healthcare, and retail, potable, cooling, and domestic hot water loops.
Water Treatment Chemical Companies
Chemical suppliers and service programs: coagulants, flocculants, scale and corrosion inhibitors, biocides, and specialty polymers.
Water Purification Companies
Water purification providers delivering multi-barrier treatment trains for drinking, process, and high-purity applications.
Reverse Osmosis System Companies
RO system integrators for brackish, seawater, and industrial process water, skids, containerized plants, and engineered solutions.
Ultrafiltration System Companies
UF suppliers for pretreatment, reuse, and potable water, hollow-fiber and spiral-wound membrane systems at any scale.
Nanofiltration System Companies
NF solution providers for selective ion removal, softening, color removal, and high-recovery applications between UF and RO.
Microfiltration System Companies
MF providers covering particulate, pathogen, and pretreatment filtration for municipal and industrial flows.
Membrane Filtration Companies
Membrane filtration companies across MF, UF, NF, and RO, system design, skids, autopsy, and cleaning services.
Activated Carbon Filtration Companies
GAC and PAC providers for taste & odor, organics, chlorine, and micro-pollutant removal in drinking water and industrial streams.
Ion Exchange System Companies
Ion exchange resin suppliers and system builders for softening, demineralization, and targeted contaminant removal.
Biological Wastewater Treatment Companies
Biological treatment solution providers: activated sludge, SBR, MBBR, MABR, aerobic/anaerobic digestion, and nutrient removal.
Chemical Treatment Solution Companies
Chemical treatment providers covering coagulation/flocculation, pH adjustment, advanced oxidation, and disinfection programs.
Membrane Bioreactor (MBR) Companies
MBR system suppliers for high-quality effluent, reuse-ready water, and compact wastewater plants in tight footprints.
Electrochemical Water Treatment Companies
Electrocoagulation, electrooxidation, and EDR providers for heavy metals, emulsions, and hard-to-treat industrial streams.
Advanced Oxidation Process Companies
AOP suppliers, UV/H₂O₂, ozone, Fenton, and catalytic oxidation for refractory organics, PFAS, and trace contaminants.
Water Disinfection Companies
Disinfection providers across chlorination, chloramination, ozonation, UV, and electrochemical processes for potable and reuse water.
UV Disinfection System Companies
UV disinfection suppliers for drinking water, wastewater, reuse, and industrial process disinfection with dose-validated reactors.
Coagulation & Flocculation Companies
Coag/floc solution providers, chemistry, jar testing, clarifier and DAF design for particulate and colloid removal.
Water Softening Companies
Softening system providers, ion-exchange, lime, and NF-based hardness removal for industrial and commercial plants.
Water Conditioning Companies
Water conditioning suppliers for scale, corrosion, and biological control in cooling, boiler, and domestic water loops.
Ultrapure Water Treatment Companies
Ultrapure water system providers for semiconductor, power, and life-sciences, multi-stage RO, EDI, and polishing loops.
Demineralized Water Treatment Companies
Demin plant suppliers, two-bed, mixed-bed, and membrane-based demineralization for boiler feed and industrial process water.
High Purity Water Treatment Companies
High-purity water system integrators for pharma (WFI/PW), microelectronics, and laboratory applications.
Dialysis Water Treatment Companies
Hemodialysis water treatment solution providers delivering AAMI/ISO-compliant loops for clinics and hospital dialysis centers.
Cooling Tower Water Treatment Companies
Cooling water program providers, chemistry, side-stream filtration, Legionella control, and remote monitoring.
Boiler Water Treatment Companies
Boiler water solution providers, softening, demineralization, condensate polishing, and chemistry programs for steam plants.
Effluent Treatment Plant Companies (ETP)
Turnkey ETP builders for industrial effluent compliance, physicochemical, biological, and tertiary treatment trains.
Drinking Water Treatment Companies
Potable water treatment companies for municipalities and utilities, conventional, membrane, and advanced treatment.
Desalination Service Companies
Full-service desalination providers covering design, build, O&M, and performance contracts for SWRO, BWRO, and thermal plants.
Seawater Desalination (SWRO) Companies
SWRO solution providers, intake design, high-pressure RO, energy recovery devices, and post-treatment for coastal and offshore use.
Brackish Water Desalination Companies
BWRO providers for inland brackish aquifers, reuse, and industrial streams, high-recovery with concentrate management.
Thermal Desalination Companies
MED, MSF, and MVC thermal desalination providers for high-salinity, high-TDS, or waste-heat integrated projects.
Modular Desalination Companies
Containerized and skid-mounted desalination units for remote sites, emergency response, and rapid deployment.
Renewable-Powered Desalination Companies
Solar and wind-coupled desalination providers, off-grid and hybrid systems with storage and variable-load RO.
Circular water · 11 pages
Water Reuse & Recovery
Water Reuse & Recovery brings together the technologies and services that close the loop, turning wastewater and brines into reusable water, recovered resources, and compliance-ready streams.
Zero Liquid Discharge (ZLD) Companies
ZLD integrators combining membranes, evaporators, and crystallizers to eliminate liquid effluent and recover salts.
Minimum Liquid Discharge (MLD) Companies
MLD designers balancing high recovery with reduced CAPEX/OPEX vs. full ZLD, concentrate minimization at scale.
Industrial Water Reuse Companies
Reuse solution providers closing the loop with tertiary membranes, AOP polishing, and tailored reuse schemes for process and cooling.
Greywater Recycling Companies
Greywater systems for buildings and campuses, reuse for flushing, irrigation, and cooling make-up.
Agricultural Water Reuse Companies
Treatment for fit-for-purpose irrigation water, pathogen, salinity, and nutrient management tuned to crop and soil needs.
Rainwater Harvesting Companies
Rainwater collection, storage, and treatment solutions for industrial, commercial, and community reuse schemes.
Brine Treatment Companies
Brine concentration, crystallization, and disposal providers for desalination and industrial waste streams.
Brine Valorization Companies
Resource recovery from brine, salts, minerals, and chemicals turned into revenue instead of disposal cost.
Water Resource Recovery Companies
Resource recovery facilities turning wastewater into water, nutrients, energy, and other reusable materials.
Nutrient Recovery Companies
Phosphorus and nitrogen recovery, struvite, ammonia stripping, and bioreactor-based nutrient reuse.
Lithium Extraction from Water Companies
Direct lithium extraction (DLE) from brines and produced water, adsorption, ion exchange, and membrane-based systems.
Plants & systems · 17 pages
Wastewater & Infrastructure
Wastewater & Infrastructure covers the plants, contractors, and systems that physically build and operate the hardware of water and wastewater treatment, from municipal WWTPs to mobile units and sludge handling.
Industrial WWTP Companies
Industrial wastewater plant builders handling complex effluent from manufacturing, mining, energy, and chemical sites.
Municipal WWTP Companies
Municipal wastewater solution providers, plant design, upgrades, retrofits, and nutrient-removal expansions.
Sewage Treatment Plant Companies
STP providers covering packaged, modular, and large-scale sewage treatment for municipalities and compounds.
Specialized WWTP Companies
Niche wastewater treatment firms tackling landfill leachate, food processing, textile, and hazardous streams.
EPC Water Treatment Companies
EPC contractors delivering engineering, procurement, and construction of water and wastewater plants end-to-end.
Modular Water Treatment Companies
Containerized and modular plants for rapid deployment, remote sites, and scalable capacity expansion.
Water Plant Construction Companies
General contractors and civil/mechanical solution providers constructing water and wastewater treatment facilities.
Industrial Cooling System Companies
Cooling tower, closed-loop, and hybrid cooling providers integrated with water treatment programs.
Produced Water Treatment Companies
Oil & gas produced water solution providers, de-oiling, desalting, and reuse for fracking, injection, or discharge.
Marine Water Treatment Companies
Marine and offshore water/wastewater systems for vessels, rigs, and coastal facilities, MARPOL-compliant treatment.
Mobile Water Treatment Services
Trailer-mounted and containerized rental treatment for emergencies, plant outages, and short-term projects.
Sludge Dewatering Companies
Dewatering providers, belt filters, centrifuges, screw presses, and filter presses for sludge volume reduction.
Sludge Thickening Companies
Gravity, DAF, drum, and rotary thickener suppliers for upstream sludge concentration and digester feed optimization.
Sludge Drying Companies
Thermal, solar, and belt dryer providers producing Class A biosolids and reducing hauling volumes.
Biosolids Management Companies
Biosolids handling, stabilization, land application, and beneficial-reuse service providers.
Sludge-to-Energy Companies
Anaerobic digestion, incineration, and pyrolysis systems recovering energy from municipal and industrial sludge.
Anaerobic Digestion Companies
AD system providers, UASB, EGSB, CSTR, and plug-flow digesters for high-strength wastewater and organic waste.
Intelligence layer · 10 pages
Monitoring & Digital
Monitoring & Digital covers the sensors, platforms, and software that turn water infrastructure into an observable, optimizable system, plus the energy-efficiency and renewable integration that modernizes operations.
Water Monitoring & Control Companies
Online instrumentation, SCADA, and control solution providers delivering real-time visibility into treatment performance.
Digital Water Solution Companies
Platform and software vendors digitizing water utilities, asset management, GIS, operations, and customer experience.
Industrial Water Quality Testing
Accredited labs and on-site testing services for process water, effluent, and regulatory compliance monitoring.
IoT & Smart Water Companies
Smart water platforms, connected meters, sensors, analytics, and predictive maintenance for utilities and industry.
SCADA Water Treatment Companies
SCADA integrators and system integrators for water/wastewater plants, PLC, HMI, historians, and cybersecurity.
AI Water Treatment Companies
AI/ML platforms optimizing dosing, energy use, and anomaly detection across water and wastewater operations.
Remote Water Monitoring Companies
Remote monitoring services for decentralized assets, cloud dashboards, alerts, and managed operations at a distance.
Energy Efficient Water Treatment Companies
High-efficiency pumps, blowers, drives, and designs that cut energy intensity across water and wastewater systems.
Energy Recovery Water Treatment Companies
Energy recovery devices (ERDs) and heat recovery integrators reducing specific energy consumption in treatment plants.
Solar Water Treatment Companies
Solar-powered pumping, disinfection, and treatment solutions for off-grid and hybrid water projects.
Advisors & capital · 13 pages
Engineering, Consulting & Financing
Engineering, Consulting & Financing brings together the people and deal structures that de-risk water projects, from feasibility to detailed design, from ESG strategy to Water-as-a-Service and PPPs.
Water Treatment Consulting Firms
Consulting firms scoping feasibility, technology selection, process optimization, and strategy for water projects.
Water Engineering Services
Multi-discipline engineering firms, process, civil, mechanical, electrical, and controls, for water infrastructure.
Water Infrastructure Services
Infrastructure program managers and owner's engineers for conveyance, storage, treatment, and distribution assets.
Water ESG & Stewardship Consulting
Water stewardship, AWS, CDP, and ESG disclosure consultants helping corporates set and hit credible water targets.
Water Feasibility & Due Diligence
Techno-economic feasibility, environmental, and M&A due-diligence firms for water assets and deals.
Water-as-a-Service (WaaS) Providers
WaaS providers delivering treated water on a per-m³ basis, BOO/BOOT models with no upfront CAPEX.
Water PPP Companies
PPP, concession, and DBFOM solution providers structuring long-term water infrastructure deals with public counterparties.
Water Technology Leasing & Rental
Short- and long-term rental of RO, filtration, and wastewater units for outages, pilots, and temporary demand.
EPC Water Contractors
Engineering, procurement and construction contractors delivering turnkey water and wastewater treatment plants under fixed-price EPC contracts.
Water Technology Manufacturers
OEM manufacturers of water and wastewater treatment equipment, membranes, filtration systems, and process technology hardware.
Water System Integrators
System integrators combining multi-vendor process equipment, controls, and digital tools into complete water treatment solutions.
Water Chemical Suppliers
Suppliers of specialty water treatment chemicals including coagulants, scale inhibitors, biocides, and pH adjustment reagents.
Water Consulting Firms
Independent water consulting firms providing feasibility studies, technology selection, regulatory advisory, and project development services.
Run & maintain · 4 pages
Operations & Support
Operations & Support covers the day-to-day running of water infrastructure: contract operators, 24/7 emergency teams, asset-management advisors, and training providers for water plant staff.
Water Treatment O&M Companies
Operations & maintenance contractors running water and wastewater assets under performance-based agreements.
Water Treatment Emergency Services
24/7 emergency response, mobile treatment, rentals, and rapid mobilization for plant failures and disasters.
Water Asset Management Companies
Asset management consultants and software firms optimizing lifecycle cost, risk, and renewal across water portfolios.
Water Treatment Training Companies
Operator training, certification prep, and competency development for water and wastewater plant staff.
Sector expertise · 15 pages
By Industry
Industry pages group providers by the sector they know best. If your challenge is defined by the vertical (compliance, process chemistry, plant design norms), start here.
Food & Beverage Water Treatment
Treatment providers for dairies, breweries, beverage, and food processors, CIP, high-strength wastewater, and reuse.
Oil & Gas Water Treatment
Upstream, midstream, and downstream water services, produced water, frac flowback, and refinery effluent.
Pharmaceutical Water Treatment
Pharma and biotech water systems, USP/EP purified water, WFI, clean steam, and API wastewater treatment.
Mining Wastewater Treatment
Mining water services, acid mine drainage, tailings water, process water, and ZLD for mine sites.
Chemical & Petrochemical Water Treatment
Treatment solution providers for complex chemical and petrochemical effluents, refractory organics, solvents, and high-TDS streams.
Manufacturing Water Treatment
Water and wastewater providers for discrete and process manufacturing, metal finishing, automotive, electronics.
Pulp & Paper Water Treatment
Pulp & paper mill water services, white water reuse, anaerobic treatment, and color/COD removal.
Metals & Steel Water Treatment
Treatment for steel, aluminum, and metal finishing, acid pickling, oil/emulsion, and heavy metals removal.
Agriculture Water Treatment
Irrigation water treatment, livestock water, and agri-food effluent management for farms and agri-industry.
Energy & Power Generation Water Treatment
Power plant water cycles, makeup, cooling, boiler, condensate polishing, and FGD wastewater treatment.
Leather & Tanning Wastewater Treatment
Tannery effluent solution providers, chromium recovery, sulfide oxidation, and compliance for leather industries.
Hospitality & Hotel Water Treatment
Hotel and resort water treatment, potable, pool, cooling, wastewater reuse, and Legionella risk management.
Construction Water Treatment
Construction-site water treatment, groundwater dewatering, turbidity control, and temporary wastewater.
Utilities & Municipal Water Treatment
Water and wastewater utility service providers, design, build, operate, and digital transformation partners.
Aquaculture Water Treatment
RAS, hatchery, and aquaculture water treatment, biofilters, ozone, UV, and solids removal for fish health.
Problem-first · 20 pages
By Challenge / Contaminant
Challenge pages group providers by the specific contaminant or problem they solve. Start here when the brief is 'remove X' rather than 'build Y'.
PFAS Removal Water Treatment Companies
PFAS treatment providers, GAC, IX resins, RO, foam fractionation, and destruction technologies for forever chemicals.
Heavy Metals Removal Companies
Heavy metals treatment, precipitation, IX, sorbents, and membranes for lead, mercury, cadmium, chromium, arsenic.
COD/BOD Reduction Companies
COD and BOD reduction solution providers, biological, AOP, and hybrid processes for high-strength industrial effluents.
Oil & Grease Removal Companies
Oil/water separation experts, API separators, DAF, coalescers, and membranes for free, emulsified, and dissolved oil.
Arsenic Removal Water Treatment Companies
Arsenic treatment, adsorption media, oxidation/coprecipitation, and membrane-based removal for drinking water.
Pharmaceutical Contaminant Removal Companies
Micropollutant removal, ozone, AOP, GAC, and NF for pharmaceuticals, hormones, and personal care products.
Scale & Corrosion Control Companies
Scale and corrosion control programs, inhibitors, monitoring, and side-stream treatment for cooling and boilers.
Iron Removal Water Treatment Companies
Iron and manganese removal, oxidation, greensand, biological filters, and sequestration for well and surface water.
TDS Reduction Companies
TDS reduction via RO, NF, ED/EDR, capacitive deionization, and thermal processes for brackish and process water.
Pathogen Removal & Disinfection Companies
Multi-barrier pathogen removal, filtration, UV, chlorine, ozone, and membranes for bacteria, viruses, and cysts.
Turbidity Removal Companies
Clarification and filtration providers for turbidity, coag/floc, DAF, sand, multimedia, and membrane processes.
Nitrate Removal Water Treatment Companies
Nitrate removal, ion exchange, RO, biological denitrification, and electrochemical processes.
Ammonia Removal Companies
Ammonia removal providers, nitrification/denitrification, stripping, breakpoint chlorination, and IX.
Color Removal Wastewater Companies
Color removal solution providers, ozone, coag/floc, adsorption, and membrane processes for textile and dye effluents.
Microplastics Removal Companies
Microplastic removal via high-efficiency filtration, membranes, coag/floc, and advanced oxidation.
Silica Removal Water Treatment Companies
Silica removal, lime softening, IX, RO, and specialty resins for boiler feed, power, and semiconductor water.
Phosphate Removal Companies
Phosphorus removal, chemical precipitation, EBPR, sorbents, and recovery technologies for compliance and reuse.
Biofouling Control Companies
Biofouling monitoring and control, biocides, chlorine dioxide, UV, and membrane cleaning programs.
Odor Control Water Treatment Companies
Odor control providers, biofilters, scrubbers, activated carbon, and chemical dosing for H₂S and VOCs.
Zero Liquid Discharge Use Case Companies
ZLD use-case providers showcasing delivered projects, concentration, crystallization, and salt recovery at scale.
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