Industrial Water 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

DuPont Water Solutions specializes in advanced water treatment technologies, providing innovative solutions for water filtration, purification, and separation across various industries. With a global presence, they focus on enhancing water quality and sustainability.

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.

BWT Holding GmbH specializes in water treatment technologies, providing innovative solutions for filtration, purification, and water treatment plants. As a leading equipment manufacturer and technology provider, BWT serves diverse industries, ensuring high-quality water management across Europe.

Olansi Healthcare Co., Ltd. specializes in advanced water purification and industrial water treatment solutions, serving the utilities and manufacturing sectors across Europe. As a leading equipment manufacturer and technology provider, Olansi is committed to delivering innovative and sustainable water treatment technologies.

Shanghai Pullner Filtration Technology Co., LTD specializes in advanced filtration and water treatment technologies, serving industries such as construction, manufacturing, and utilities. With a focus on innovative solutions, Pullner provides equipment and systems for effective water purification and treatment.

GVB GmbH specializes in quartz glass solutions, providing advanced filtration and treatment technologies for various industries. Based in Germany, they cater to construction, manufacturing, utilities, and more, offering equipment and systems for effective water treatment and purification.

We produce a comprehensive range of spraying solutions, encompassing everything from small-scale nozzles to large industrial spraying systems. Our diverse product line includes various types of nozzles tailored to meet the specific requirements of every application and customer need. The company was established in Milan in November 1968, focusing on distributing parts and components for fire protection systems. Over time, we expanded our offerings to include a diverse range of industrial sprayers tailored to various applications. In addition to our distribution and manufacturing of fire protection system components and industrial sprayers, we specialize in designing and producing pneumatic spray nozzles for industrial use and tank washing nozzles. Our product line also encompasses a variety of complementary accessories essential for industrial washing, including filters, spray guns, and hoses. Furthermore, we offer ejectors, blower nozzles, swivel joints, and hose clamps to provide comprehensive solutions for our customers' needs. PNR Italia is part of the Tecomec Group and oversees four other affiliated companies to form PNR Company, a consolidated reality with a significant presence on the market.

Over three decades, Pollet Water Group has been thinking water. It’s our mission to improve the quality of life, the comfort of doing business and the efficiency of industrial processes through a network of specialized water treatment companies.

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.

Filtek Water Treatment Systems specializes in the design and manufacture of advanced water treatment equipment, offering a wide range of filtration and purification solutions for industrial and residential applications. With a focus on innovation and quality, Filtek serves diverse industries across Europe, MEA, and APAC regions.

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.

Hikins (Jiangsu) Envirotech Co., Ltd. is a leading manufacturer of water treatment components, specializing in advanced filtration and purification technologies. Serving the construction, manufacturing, and utilities sectors, Hikins provides innovative solutions for water treatment plants and systems across China and the Asia-Pacific region.

Jingshan Watercloud Technology Co., Ltd. is a leading supplier in the water filtration industry, specializing in advanced filtration technologies and equipment manufacturing. Serving diverse sectors, they provide innovative solutions for water purification and treatment, catering to both industrial and municipal needs across China and the Asia-Pacific region.

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.

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