High Purity Water Treatment 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

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.

PWNT, part of the Nijhuis Saur Industries (NSI) group, delivers cutting-edge solutions and consultancy services to meet the diverse needs of water utilities worldwide. Building on PWN’s rich legacy, PWNT leverages over 100 years of expertise to drive innovation in water treatment, with a strong focus on drinking water. Our pioneering technologies, including SIX® (Suspended Ion Exchange), ILCA® (Inline Coagulation and Adsorption), and CeraMac® (Ceramic Membrane Microfiltration), offer efficient, sustainable, and cost-effective treatment solutions for various water sources, ensuring the delivery of high-quality drinking water. Beyond technology development, PWNT offers comprehensive consultancy services in the study, design, optimization, and integration of water treatment technologies. PWNT is well-equipped to provide expert guidance on both emerging and traditional processes, such as pellet softening, advanced oxidation, GAC filtration, and coagulation. With a strong global presence, PWNT has successfully implemented large-scale projects and pilot installations across the world. Our innovative technologies are trusted by water utilities for their ability to address complex water quality challenges and adapt to diverse environmental conditions. Headquartered in the Netherlands, PWNT continues to foster strong partnerships with leading universities and global companies, committed to advancing sustainable water treatment technologies and helping utilities achieve their water quality goals.

Pure Water Group specializes in sustainable Electro Deionization (EDI) and Electro Dialysis Reversal (EDR) equipment, providing high purity water systems for various industrial applications. With a focus on innovative membrane technologies, they serve the European market, offering solutions for water treatment and reuse.

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.

Founded in 1996, Hangzhou Darlly Filtration Equipment Co., Ltd is a leading filtration manufacturer in China, specializing in high-purity filtration products for diverse industries including life sciences, microelectronics, and food and beverage. With a global presence, Darlly is committed to innovation and quality assurance in filtration technology.

Cristal Materials Corporation specializes in the production of high-purity silica optics and UV LED optical solutions, including innovative water purification modules that utilize optical sterilization for effective contaminant removal, ensuring zero water waste and compliance with national drinking water standards.

SnowPure Water Technologies specializes in manufacturing and providing advanced components for high purity water systems, offering solutions for water treatment plants and ultra-pure water applications across various industries.

Taizhou Woda Environmental Protection Technology Co., Ltd. specializes in manufacturing high-quality water filtration systems and faucets, focusing on enhancing water purity and safety. Serving the construction and manufacturing sectors, Woda aims to provide innovative solutions for water treatment and infrastructure development in China and the Asia-Pacific region.

3rd Light Media provide technical documentation and design services for water and wastewater projects, both in the UK and internationally. We provide a range of documentation for projects, helping clients achieve their handover requirements and producing high quality documents which provide the end users with the information they need to operate and maintain the plants. We are a market leader in driving digital innovative solutions to our clients to ensure documentation is presented in new and dynamic ways, this includes development of web-based O&M manuals which can integrate with client I.T. systems such as SharePoint; Graphical design to enable data and documentation of assets on a site plan or P&ID to be available within just a few clicks of a button. Additionally, we have developed a QR coded asset tagging system and mobile App. Our services mean we can provide our clients with a single source for all handover documentation requirements. The services we can provide include: Operating and Maintenance Manuals (O&Ms) Site Operating Manual (SOM) Health & Safety Files Asset Data Registration Training Manuals Site Drawings (P&IDs, Process Flows, Site Layouts and Plans, GA’s, Single Line Diagrams and more) AutoCAD Drafting Services Additionally, we also provide a range of onsite services to further enhance being a one stop provider for all your project handover needs. Some of the onsite services we provide include: Asset Identification Tags (to meet all individual client specifications) Pipe Banding to BS1710 Site signage and labelling We also provide a range of design and pre-construction services, with experience when working with Tier 1 contractors at ECI / Outline Design stages of projects including: Functional Design Specifications Control Philosophies Factory Acceptance & Site Acceptance Tests for Software Testing Commissioning Plans and Sequencing Asset Condition Reports Verification Survey Works (Producing P&IDs, ICA and Electrical Design Proposals) We work as an integrated team with both contractors and clients to ensure all aspects of project handover are achieved to the highest standard. We are able to do this with our vast knowledge of individual water companies asset standards and specifications. We are also experienced in using portals such as TWEXnet, Asite, Aconex, Business Collaborator and Conject for uploading documents. Our team comprises of skilled and experienced site and process engineers with a vast knowledge of both water and wastewater treatment systems. Our team of engineers all hold EUSR Water Hygiene and CSCS cards as well as water company specific requirements such as the Thames Water Safety Passport. We also have an in-house graphic design team providing professionally drawn illustrations and drawings which are used within our documentation, helping to visualise written descriptions and processes. Our philosophy is to take the burden of producing documentation on projects away from our clients. Being skilled process engineers, we will visit sites to gather information and we work with your supply chain to coordinate the availability of all required documents and drawings, ensuring compliance with the end clients standards. We write all the technical content and detail to the highest standard, supported by expertly drawn diagrams and illustrations. Some of the water companies we have worked with include: Thames Water Affinity Water Yorkshire Water Southern Water Severn Trent South East Water United Utilities Welsh Water Bristol Water Essex & Suffolk Water Irish Water Haya Water We work both directly with water companies and Tier 1 and Tier 2 contractors. We work on projects of all sizes, from minor schemes to major £100+ million projects.

As an industry leader since 1994, Active Tunnelling Ltd (ATL) is the UK’s most experienced independent, micro-tunnelling, auger boring, shaft sinking and pipe jacking company offering a comprehensive range of services to the water and civil engineering industries across the UK & Ireland. More than just a tunnelling company ATL delivers all encompassing projects solutions: whether it is a segmental shaft or complete project management from ‘tunnel’ to final landscaping, ATL delivers flexible, and tailor made solutions to suit any brief. ATL prides itself on its long list of clients that includes amongst others the UK’s leading construction companies and is proud to claim total satisfaction on every job. A dedicated and highly skilled/experienced sixty strong team are at the core of ATL’s success, this weight of experience backed by the UK’s largest independent specialist plant enables ATL to deliver on time every time. Services Our comprehensive range of services allows us to satisfy even the most demanding brief, even with short lead times you can place your trust in us leaving you to focus on other aspects of the project. Tunnelling and pipejacking: 1,000mm – 2,400mm diameter. Micro-tunnelling: 150mm – 900mm diameter. Auger boring: 150mm – 725mm diameter. Grouting. Shaft sinking. Cover slab construction. Timber headings. ATL offer Professional management team with over 30 years experience. Quick mobilisation to site. Technical support/design where required. Achilles UVDB Verify approved company. Quality Assured ISO 9001:2008 Registered Firm Cert. No. A11969. Fast response to enquiries. Fast and efficient service maintaining a high standard of safety. Specialist trenchless plant. A completed project to a high quality at a reasonable price. A willingness to work as one team with all parties to ensure satisfaction.

Established in 1870, AE Yates is a progressive civil engineering contractor with an enviable track record of successfully delivering technically demanding high quality works to the complete satisfaction of a wide variety of public and private customers. An Integrated Construction Company A E Yates has grown to be an integrated construction company with a turnover of £50m, employing over 170 managerial, professional, technical and operational staff. Our company headquarters, based in Bolton, are strategically located to serve and communicate with clients throughout the United Kingdom with immediate access to road, rail and air transport facilities. We also have an operating base in Sheffield. AE Yates Group The group companies add value for customers not just in their specialism. When working together they can offer an integrated service through resource sharing and joint management of activities. Operational interfaces are removed eliminating potential co-ordination, management and programming issues for customers. AE Yates Civil Engineering Ltd AE Yates Directional Drilling Combined Soil Stabilisation Side Grip Piling SPI Piling Tritech Ground Engineering AE Yates Haulage Equipment and Skills Investment in the development of highly skilled operational teams up to date equipment has reinforced and enhanced our capability in all areas of operations. We own and operate an extensive fleet of general civil engineering and specialist plant and equipment. Experienced and Dedicated We are a highly experienced and respected civil engineering contractor operating to an Integrated Management System which is fully accredited to IS 9001:2015, ISO14001:2015 and ISO45001:2018 by BSI. We are fully committed to meeting the required standards of quality, customer care, environmental awareness, safety, health, time and cost demanded by our clients. We are fully supportive of the UK industry’s drive towards Continuous Improvement, Best Value and Constructing Excellence.

AJ Engineering & Construction Services Ltd provide a wide spectrum of engineering services ranging from steel fabrication and CNC machining to cladding and civil engineering, with our highly experienced team we provide on-time, on-budget quality solutions. From our bases in Forres and Fort William, and a team accustomed to travel we can meet our client’s needs wherever required. Having worked on various water and wastewater treatment projects for the past 25 years we have developed a great working relationship with water companies across the UK. Our in-house capabilities allow us to offer a turnkey service to our clients from reactive maintenance and manufacturing to planned infrastructure and non-infrastructure projects. Many of the projects we undertake in the water sector are within water treatment and wastewater treatment plants where cleanliness is paramount, all our water sector site teams hold certification and Water Hygiene cards. Our range of services collated into one means that we can take on multiple discipline contracts and deliver them as one which provides our clients with a number of advantages. It removes the need to have multiple contractors on site at once. Benefits in cost savings passed down on procuring large amounts of steel for a side wide project. Little risk of dimensional discrepancies between contractors We work alongside framework delivery partners throughout the UK providing the services below; Steel portal frame buildings (design, fabrication, erection & cladding) Design, manufacture and installation of pipe bridges Design, manufacture and installation of site wide access metalwork (walkways, access stairs, ladders etc) Design, manufacture and installation of modular water buildings transportable by road. Design of various process tanks, pipework and pumps. Fabrication of tanks and pipework (stainless and carbon) Mechanical Installation Modular Treatment Buildings and Mechanical Fit-out SR2 rated steel enclosures (quicker than GRP Kiosks) We appreciate how important quality and cleanliness is in the water sector and we are proud that we have completely segregated facilities for stainless steel and carbon steel. In addition to this we are also approved under the regulations 31(4)(A) of the water supply regulations 2016 to supply stainless steel and pipework fabrications to the drinking water sector.

Founded in 1985, UK-based Amazon Filters Ltd is one of Europe’s leading manufacturers and suppliers of bespoke filtration technology such as filter cartridges and housings. Our comprehensive range of products support critical liquid and gas applications in many industries. With over 40 years of continuous support to municipal water companies, we are ideally placed to solve water quality problems with our bespoke cartridge filtration technology. From small boundary boxes installations to large volume fully containerised system and rentable mobile skids, we can manufacture and supply it all. We offer solutions for: Turbidity Control Metals Removal (iron / manganese) Cryptosporidium removal Chlorine reduction Let us support your AMP 8 commitments: Securing Long Term Resilience Securing Cost Efficiency Securing Confidence and Assurance We operate a range of ISO-accredited Quality Management Systems to ensure excellence in customer service. We provide high quality, reliable products and services that exceed client expectations. We help you worry less about the filtration process so you can focus on what you do best.

AVK UK is part of the globally renowned AVK Group who are based in over 100+ countries and has over 4,500+ employees worldwide. The AVK Group is privately owned by the founder Niels Aage Kjaer, and is named after his father Aage Valdemar Kjaer. As part of the AVK Group, we pride ourselves in being one of the leading valve manufacturers for the water, sewage, firefighting, and gas industries. Our product program comprises a large range of valves, hydrants, pipe fittings and accessories, each complying with the highest standards of safety and durability. Our focus is on the products designed and manufactured to the British Standards, however, the AVK Group today offers products in accordance with the most national and international standards. Our product portfolio also includes AVK Smart Water Management valves and sensors for real-time network information and status. We also offer Pressure Management solutions such as air valves, PRVs, and control valves, AVK Assist which enables GPS product location and, the market leading Donkin PUR range of gas valves. Our UK sales offices and manufacturing sites respond quickly to the needs of our customers and for fittings required on an express or emergency service we have a dedicated same day 24/7 helpline – 0800 202 8228. In addition, we cooperate with local and national distributor partners to offer our customers AVK products as part of multi-product packages. AVK UK is the sales division and has offices in Staveley, near Chesterfield, also known as the home of Bryan Donkin gas valves, and Northampton. AVK in the UK comprises of 7 companies and has over 500 employees. Find out more here: https://www.avkuk.co.uk/en-gb/solutions-and-information/about/avk-in-the-uk/avk-uk

Cadman Cranes is a leading provider of lifting solutions in the UK with over 50 years’ experience and a reputation for quality, reliability and safety. At the very forefront of sustainability within the industry, Cadman Cranes offer responsible and collaborative turn-key solutions across all industries. From depots in Colchester and Brentwood, Cadman is ideally positioned to cover the East of England and beyond, living and breathing its mission to provide safe lifting solutions to industry and communities in a collaborate, considerate and sustainable way. Cadman has always placed great importance on delivering so much more than just crane hire. Its values are focussed on the success of its clients, its people and its community, and it takes great pride in going the extra mile on every job, no matter how big or small. Cadman Cranes add value to your hard work and offer a full-service lifting solution that goes far beyond just crane hire. It doesn’t just look for customers, it looks for partnerships based on trust, quality and safety. Services include: Contract lift services: Our complete package service is ideal for those who require a fully managed lifting solution, removing your risk and liability, and ensuring that we deal with all of the ‘heavy lifting’. Crane hire services: Cadman Cranes is the leading crane rental company in the East of England, providing crane hire across London, Essex, East Anglia, and all over the UK. With cranes available 24/7, 365 days a year, we are well positioned to keep your operations moving. Tank clearance, dredging, and grab solutions: Cadman Cranes offers innovative tank clearance solutions with our custom-designed grab attachment. The remote-controlled grab, mounted to the hooks of our mobile cranes, can reach up to 60 meters and handle a variety of materials, including sewage waste, sludge, grit, mud, and sand. This service is ideal for wastewater treatment plants, sewage facilities, digester tanks, aeration tanks, ports, and any industrial sites that require regular tank cleaning, maintenance, or dredging. Specialist lifting equipment for utility installation projects: Utilising our range of specialist lifting equipment, we have assisted on some of the most complex utility installation projects throughout the East of England, solving problems currently unimaginable by other mobile crane hire companies. Our innovative Compact Crawler Cranes, in combination with our remote-controlled telescopic hydraulic grab, have proved invaluable in providing the highest level of service and crane hire to the utilities sector. If you would like to work with Cadman Cranes or are looking to add a safe and considerate crane hire solution to your list of approved suppliers, Cadman would love to hear from you.