Treatment Technologies
Water Purification Companies
Water purification providers delivering multi-barrier treatment trains for drinking, process, and high-purity applications.
This page is a good fit if you need:
- Flat Sheet UF Membranes or Hollow Fiber RO capabilities
- Suppliers with food-beverage sector experience
- Providers operating in China or Indonesia
Not ready to browse? Post your water purification project and receive matched proposals directly from verified suppliers.
- Providers
- 7
- Verified
- 4
- Countries
- 5
How to choose a water purification provider
Start with providers that clearly operate in your target geography and project footprint.
Look for industry exposure that matches your water challenge, compliance constraints, and deployment context.
Use technologies, service scope, and proof signals to narrow the list before reaching out to suppliers.
Not sure where to start? Our experts can help.
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7 results from 7 matched providers
Ecosystems International
PT Ecosystems International (PT ESI) was established at Jakarta on 21st November 2006. We are an industrial effluent treatment systems integrator specializing in electrocoagulation (EC), a unique waste water treatment profile. PT ESI has capabilities in designing complete waste water treatment solutions by combining various effluent treatment systems such as the electro-coagulation, biological, chemical processes and membrane filtration, offering its customers a wide and comprehensive range of solutions, tailored to suit their various needs – ranging from basic effluent treatment for discharge to effluent recycling for water reuse. The Company is experienced in handling the design, engineering, procurement, construction and operation of new Effluent Treatment Plants (“ETP”) and possesses expertise in retrofitting existing ETP to increase the flow rate and treatment capability without any major infrastructure increase PT ESI is also a premier waste water treatment service company specializing in handling waste water generated from Exploration (Drilling) and Produced Water. Customers in Indonesia include major Oil & Gas companies such as Pertamina, Exxon, Chevron, Petro-China and Medco. Operations in Indonesia are provided by both mobile and fixed units. At drill sites where waste-water recycling is required, PT ESI supplement these treatment units with skid mounted mobile Reverse Osmosis systems. The technologies and solutions employed by PT ESI are developed in-house and examples of these are its proprietary Trident™ Electro Contaminant Removal (“ECR”) system, the Stage Contaminant Removal (“SCR”) process and Mobile On-Site Waste-Water Treatment (“OWT”) units
Brine Consulting
BRINE CONSULTING delivers senior-level strategy, technical design, and actionable insight across the full lifecycle of water-related challenges. We support clients with advisory and due diligence, advanced brine management and resource recovery, industrial and municipal water reuse, and MLD/ZLD systems. Our team also leads ESG and climate-resilience strategy, innovation scouting, and international development and PPP advisory. With deep specialization in desalination, brine valorization, circular economy models, and high-impact infrastructure, we help organizations turn water and waste streams into opportunities, providing clear thinking, rapid delivery, and solutions built for real-world results.
Gi Aqua , Water as a Service
GI WAAS delivers cutting-edge water and wastewater solutions using advanced nanotechnology and zero total discharge solution sets industry standards. Our mission is to provide smart, sustainable, and decentralized treatment systems. We are committed to circular economy principles and reducing environmental impact. Our holistic approach provides comprehensive, tailor-made solutions that are designed to meet the specific needs of each client
Hangzhou Realize Technology Co., LTD.
HANGZHOU REALIZE TECHNOLOGY CO., LTD. is a technology enterprise. The company collaborates with domestic and international universities such as Beijing University of Technology, Tsinghua University, and Berlin University of Technology to address the challenges of enhancing anaerobic efficiency and nitrogen removal in high-ammonia nitrogen wastewater. The core technologies foucs on energy-saving denitrification and enhanced green methane production. These two technologies can increase production efficiency of green methane by 20% and reduce costs of wastewater denitrification by 60%.
Hainan Litree Water Purification Technology Industry Co., Ltd.
Litree: Pioneering Ultrafiltration for a Water-Secure World Founded in 1992, Litree has dedicated 30+ years to redefining water purification through ultrafiltration (UF) membrane technology—our core expertise and passion立升（Litree）. As a global high-tech enterprise rooted in independent innovation, we’ve evolved from a membrane R&D startup to one of the world’s leading water problem solvers, with over 146 core patents and state-of-the-art manufacturing hubs in Haikou and Suzhou, China立升（Litree）. Our signature hollow fiber UF membranes are engineered to deliver unmatched performance: 0.01μm precision removes 99.99% of bacteria, viruses, and contaminants while preserving essential minerals—striking the perfect balance between purity and health立升（Litree）. This technology powers our diverse solutions, from residential whole-house systems to large-scale municipal projects and industrial wastewater treatment, all designed for sustainability and cost-efficiency. What truly sets us apart is our commitment to making safe water accessible. We’ve completed projects serving 50,000+ residents with centralized purification systems that cut construction costs and footprint by 50% compared to traditional setups—proof that advanced technology can also be affordable. Today, our solutions reach 60+ countries, supporting 3,000+ industrial clients and millions of households worldwide. At Litree, water isn’t just our business—it’s our mission. We believe every drop matters, and we’ll keep pushing boundaries to create a future where clean, safe water is a universal right, not a privilege
Sidonwater S.L.
Sidon Water is a water technology company specialised in non-chemical water treatment and system optimisation. We develop and deploy advanced solutions that prevent and remove limescale, reduce fouling and corrosion, and improve the performance of cooling towers, industrial water systems, and reverse osmosis and desalination installations. Sidon Water works with industrial clients, commercial building owners, OEMs and EPC partners to deliver measurable improvements in energy efficiency, operational reliability and asset lifetime. Our activities cover the full cycle from analysis and pilot projects to system integration, commissioning and long-term performance optimisation.
Guangzhou Haike Electronics Technology Co., Ltd.
Guangzhou Haike Electronics Technology Co., Ltd. is a leading manufacturer of air and water purification systems, specializing in advanced filter technology. With a strong global presence, HOKO collaborates with Fortune 500 companies, producing high-quality smart home appliances and exporting to over 100 countries.
Selecting a Water Purification Technology for Your Application
Water purification is not a single technology—it is a process train. Reverse osmosis removes dissolved salts and organic micropollutants but requires sediment and carbon pre-treatment to protect membranes. UV disinfection inactivates pathogens without adding chemicals, while activated carbon adsorption targets taste, odor, chlorine, and low-molecular-weight organics. Ion exchange resins polish specific contaminants like nitrates, heavy metals, or silica that RO cannot fully reject. Selecting the right combination depends on your source water analysis, target effluent quality, and regulatory limits.
When evaluating purification providers, request a full technology gap analysis based on your feedwater characterization report. Providers should be able to demonstrate rejection rates, recovery ratios, and expected consumable lifespans under your operating conditions. Certifications to NSF/ANSI 58 (RO), NSF/ANSI 55 (UV), and NSF/ANSI 42/53 (carbon) are baseline expectations for potable applications. For industrial or pharmaceutical-grade purification, ask about validation protocols and how the system handles upset conditions such as turbidity spikes.
Use Aguato to filter purification providers by the specific technologies they deploy and the industries they serve. A provider with deep experience in semiconductor ultrapure water production operates very differently from one focused on municipal drinking water. Reviewing proof assets—datasheets, performance certificates, and project references—before your first call will sharpen your evaluation criteria and accelerate the shortlisting process.
Frequently Asked Questions
What is the difference between water purification and water filtration?
Filtration removes suspended particles and turbidity through physical media, while purification encompasses a broader process train designed to achieve defined chemical, biological, and microbiological standards. Purification typically combines pre-filtration, membrane separation (RO or nanofiltration), disinfection (UV or ozone), and polishing steps like activated carbon or ion exchange. The distinction matters when specifying systems because compliance targets and technology selection differ significantly between the two.
How do I choose between RO, UV, and activated carbon for my project?
Start with a detailed feedwater analysis covering turbidity, TDS, microbial load, and target contaminants. RO is the right choice when you need to reduce dissolved salts, heavy metals, or organic micropollutants to very low levels. UV is most effective as a final disinfection barrier against bacteria and viruses without chemical residuals. Activated carbon targets chlorine, chloramines, taste, odor, and certain trace organics. Most industrial and municipal applications use all three in sequence rather than choosing one.
What should I ask a water purification company before signing a contract?
Ask for a process guarantee tied to your specific effluent quality targets, not just equipment specifications. Confirm that the system design is based on your actual feedwater characterization, including seasonal variation. Request the expected membrane replacement schedule and consumable costs over a five-year period, and verify that the provider offers commissioning support, operator training, and a service contract with defined response times.
How much does a commercial water purification system cost?
Capital costs vary by technology train, flow rate, and effluent targets. A small commercial RO system treating 5–20 m³/day typically ranges from $15,000 to $80,000 installed, while large industrial multi-stage systems treating hundreds of cubic meters per hour can exceed $2M. Operating costs—energy, membranes, chemicals, and maintenance—often equal or exceed the annualized capital cost, so always request a total cost of ownership model alongside the capital quote.