Membrane Filtration Companies

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

ELIQUO HYDROK works with all major UK and Ireland water companies, providing practical water engineering solutions. As a specialist engineering firm with head office in Indian Queens, ELIQUO HYDROK operates at the forefront of innovative and sustainable water treatment technologies. We support the entire UK water sector, supplying every water company. Part of ELIQUO WATER GROUP, the extensive portfolio includes solutions for wastewater management, wastewater treatment, clean water treatment and surface water management; Mecana PCMF, aeration technologies, CSO screens, flow controls, storm tank flushing and Raw Water Intake Screens. Plus, a sludge treatment portfolio that helps reduce costs, improve efficiency, and meet environmental compliance requirements – through systems like ELOVAC® for vacuum degassing, and other integrated technologies in biogas, digestion, dewatering and drying. With established teams in Cornwall, Wolverhampton and Wombwell, ELIQUO HYDROK are well-equipped to support operations – from start to finish; with design, manufacture, management and install capabilities – across the UK and Ireland. This wealth of in-house expertise is backed by a forward-thinking mindset to help customers achieve their long-term goals sustainably; to deliver results in AMP 8 and beyond.

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.

Wetsus is the European center of excellence for sustainable water technology. Wetsus connects companies, universities, and government bodies for applied research into water technology.

Our manufacturing plant in Guangdong, China, was established in 2007 and has served various municipal equipment manufacturers in China for nearly 20 years. We have been exporting products for almost 10 years, such as MBBRs, tube settlers, and aerators. The factory is located near Shenzhen Port, making sea freight extremely convenient.

Foshan Wingsol Co. Ltd. is a leading OEM and ODM factory in China, specializing in the manufacturing and provision of advanced water filtration and purification systems. With a focus on membrane technologies, the company serves the utilities and manufacturing industries, delivering high-quality solutions across the Asia-Pacific region.

GI AQUA is a prominent provider of wastewater treatment solutions, dedicated to creating innovative technologies that foster a sustainable future for our world and its inhabitants. We follow a human-centered approach in our innovations, and our team consistently develops cutting-edge technologies and services to surpass our partners’ expectations while aligning with the United Nations’ sustainable development goals.

LG Water Solutions, a division of LG Chem, is a global leader in advanced water treatment technologies. They offer a comprehensive portfolio of solutions, including reverse osmosis membranes, ion exchange resins, and ultrafiltration membranes, to address water scarcity and quality challenges across municipal, industrial, and commercial sectors.

OSMO SISTEMI S.r.l. is a leader in water treatment technologies, providing solutions for treating various water sources using membrane separation technologies. They offer cost-effective, reliable water treatment plants and services to diverse sectors worldwide, focusing on desalination and water pollution reduction.

Founded in 2009, formerly known as Red Circle Industries (RCI), RCI Aquatech creates custom wastewater solutions based on end users’ requirements, which allow for optimally chosen components resulting in a solution that meets or exceeds customer needs. RCI Aquatech’s wastewater treatment systems combine necessary process technologies to reach required state and federal discharge limits and comply with local regulations. Our systems focus on removal of pollutants such as heavy metals, greases, suspended solids, oils, high salt content, toxic compounds, phosphates and more. Using chemical-physical treatment (coagulation, flocculation, and sedimentation), biological treatment (aerobic and anaerobic) and wet chemical oxidation (persistent or toxic organics). Our expertise comprises the following technologies:  Filtration & softening systems  Physicochemical treatment (coagulation-flocculation)  Membrane filtration (UF & RO)  Ion exchange  Chemical oxidation  Biological treatment  Zero liquid discharge (ZLD) system

Cimico specializes in innovative biological wastewater technologies, providing advanced solutions for industrial and municipal water treatment. With a focus on sustainable practices, Cimico serves diverse industries across Europe, offering expertise in treatment solutions, water reuse, and infrastructure systems.

GTE ELETTROMECCANICA specializes in providing advanced water treatment solutions, including equipment manufacturing and technology provision for utilities and industrial applications. Based in Italy, the company serves the European market with a focus on desalination, ultra-pure water systems, and membrane technologies.

Hidro-Water S.L.U specializes in the manufacturing and provision of advanced water treatment equipment. Based in Spain, they offer solutions for residential, industrial, and municipal applications, focusing on technologies like reverse osmosis, ultrafiltration, and greywater recycling to enhance water quality and sustainability.

Liquid X is a water technology consultancy and commercialization platform focused on accelerating the deployment of next-generation filtration solutions, with a core emphasis on graphene-based water treatment. Founded to address the gap between breakthrough innovation and real-world implementation, Liquid X operates at the intersection of advanced material science, water infrastructure, and market deployment. While significant advances in water technologies exist globally, many remain confined to laboratories or early-stage ventures. Liquid X bridges this gap by identifying, validating, and commercializing high-impact solutions—particularly graphene-based filtration systems—within the GCC and wider MENA region. Our consultancy model is built around a full lifecycle approach: from technology scouting and technical evaluation to pilot design, validation, and scaled deployment. We work with asset owners, governments, and enterprises to translate emerging technologies into practical, site-ready solutions. This includes designing pilot programs with measurable performance metrics, enabling data-driven decision-making, and ensuring that innovations are proven under real operating conditions before scale-up. A key focus of Liquid X is the commercialization of graphene-based water filters. Graphene, a two-dimensional material with exceptional strength, permeability, and adsorption capacity, has the potential to fundamentally transform water treatment. Its nano-scale structure allows precise separation of contaminants while enabling faster water flow and lower energy consumption compared to conventional systems. Through strategic partnerships with innovators, researchers, and manufacturers, Liquid X is actively working to bring graphene filtration technologies from concept to market. These systems are being developed to address some of the most critical water challenges, including the removal of PFAS and emerging contaminants, heavy metals, dissolved solids, and industrial pollutants—while significantly reducing waste and energy intensity associated with traditional technologies such as reverse osmosis. Our role extends beyond technology development. Liquid X supports the full commercialization journey, including: Technical due diligence and performance validation Pilot implementation and third-party verification Integration with existing infrastructure Development of scalable deployment models Coordination with EPC contractors, facility managers, and regulators Ongoing monitoring, compliance, and optimization By operating as a vendor-agnostic platform, we ensure that solutions are selected based on performance, suitability, and long-term value—not vendor bias. The MENA region faces some of the world’s most acute water challenges, including scarcity, high desalination dependence, and rising energy costs. Liquid X is positioned to introduce more efficient, decentralized, and sustainable alternatives through advanced filtration technologies. Graphene-based systems, in particular, offer the potential for lightweight, modular, and energy-efficient treatment solutions that can be deployed at scale across residential, commercial, and industrial applications. At its core, Liquid X is not just a consultancy—it is an enabler of the next generation of water infrastructure. By combining deep regional expertise with global innovation networks, we are helping transform how water is treated, distributed, and consumed. Our mission is to accelerate the transition from legacy, resource-intensive systems to smarter, more sustainable water solutions—unlocking the full potential of graphene and other advanced materials to build a more water-secure future.

Vontron Technology Co., Ltd. is a leading Chinese company specializing in the research, manufacture, and sale of separation membranes and related materials. With over 24 years of experience, Vontron serves a global clientele, providing advanced solutions for water treatment, including reverse osmosis and nanofiltration technologies.

Aquacells Membrane Technologies Co., Ltd is a leading Chinese company specializing in advanced EDI systems and membrane technologies. With a focus on high-end pure water equipment, they serve diverse industries, including energy, manufacturing, and utilities, providing innovative solutions for water treatment and purification.