Decentralized Water Treatment Market Report 2026

The decentralized water treatment market size has grown rapidly in recent years. It will grow from $19.87 billion in 2025 to $22.54 billion in 2026 at a compound annual growth rate (CAGR) of 13.4%. The growth in the historic period can be attributed to growth of municipal water treatment infrastructure, increasing industrial wastewater generation, adoption of conventional filtration and distillation methods, rising focus on localized water supply solutions, regulatory mandates for effluent treatment compliance.

The decentralized water treatment market size is expected to see rapid growth in the next few years. It will grow to $37.8 billion in 2030 at a compound annual growth rate (CAGR) of 13.8%. The growth in the forecast period can be attributed to increasing demand for decentralized water treatment in urban and rural areas, advancements in membrane and electrochemical technologies, integration of ai and iot for smart water management, emphasis on sustainable and energy-efficient treatment methods, expansion of industrial and commercial water treatment applications. Major trends in the forecast period include increasing adoption of membrane-based filtration systems, deployment of compact point-of-use (pou) treatment units, integration of smart sensors for real-time water quality monitoring, growing implementation of small-scale, modular treatment plants, rising use of advanced thermal and biological treatment technologies.

The growing demand for freshwater is expected to drive the growth of the decentralized water treatment market in the coming years. Freshwater demand is rising due to factors such as population growth, urbanization, industrialization, agricultural expansion, climate change, environmental degradation, and inefficient water usage. Decentralized water treatment addresses this need by providing localized purification solutions, reducing pressure on centralized systems, and improving access to clean water in remote or underserved areas. For instance, in March 2023, the World Economic Forum (WEF), a Switzerland-based non-governmental organization, reported that by 2030, global freshwater demand is projected to exceed supply by 40%. Therefore, the increasing demand for freshwater is contributing to the expansion of the decentralized water treatment market.

Leading companies in the decentralized water treatment market are advancing innovative technologies, such as mobile water treatment units, to improve wastewater reuse at reduced costs. A mobile water treatment unit is a portable system designed to treat and purify water on-site, making it suitable for drinking, industrial purposes, or environmental applications in remote or emergency situations. For example, in May 2024, Nijhuis Saur Industries, a water technology company based in the Netherlands, introduced the Grey Water Treatment 2 solution. This decentralized water management system allows industries and municipalities to locally treat grey water - such as rainwater, surface water, and shower water - for reuse in applications like toilet flushing and irrigation. The system promotes circular water management by converting typically wasted water into a valuable resource. Designed for efficiency, the unit operates in a single shift, offering rapid access to treated water and significantly reducing the demand for freshwater by at least 30%.

In January 2024, Saur, a France-based company specializing in water and leisure management, acquired Natural Systems Utilities (NSU) for an undisclosed amount. The acquisition is aimed at leveraging the strengths of both companies to foster new synergies and support the commercial and residential building markets in the Americas and Europe. The acquisition is expected to expand Saur's water reclamation and reuse activities. Natural Systems Utilities (NSU) is a US-based company providing environmental water treatment services, fully integrated water supply, wastewater treatment, and management for various entities.

Major companies operating in the decentralized water treatment market are Veolia Water Technologies, Suez SA, Dupont, Xylem Inc., Evoqua Water Technologies Corp., Darley, FilterBoxx Water and Environmental Corp., Organica Water, ATB WATER GmbH, Biomicrobics Inc., De. mem Limited, Adedge Water Technologies LLC, Epuramat S.A., Hydroswiss SA, Ayala Water & Ecology Ltd., Biokube, Afmitech Friesland BV, Epiphany Inc., LifeQuest World Corp, TMW, TopolWater Ltd., WaterHealth International, Bioxica, ECOfluid Systems Inc., Prana Sustainable Water LLC.

Asia-Pacific was the largest region in the decentralized water treatment market in 2025. The regions covered in the decentralized water treatment market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the decentralized water treatment market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The decentralized water treatment market consists of revenues earned by entities by providing services such as water purification, water recycling and reuse, community water systems, and consulting and technical services. The market value includes the value of related goods sold by the service provider or included within the service offering. The decentralized water treatment market also includes sales of point-of-use filters, UV disinfection systems, reverse osmosis systems, water softeners, chemical disinfection systems, drip irrigation systems, and rainwater harvesting systems. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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