Water Desalination and Purification Equipment Market Size & Share 2026-2035

Water Desalination and Purification Equipment Market Size

The global water desalination and purification equipment market was estimated at USD 46.1 billion in 2025. The market is expected to grow from USD 49.7 billion in 2026 to USD 77.8 billion in 2035, at a CAGR of 6.1% according to latest report published by Global Market Insights Inc.

The water desalination and purification equipment industry is rapidly growing for many reasons: billions of people are impacted by the world’s water scarcity issues, climate change is increasing the number and scale of drought events, resulting in mass urbanization of urban dwellers in regions that are experiencing significant water shortages, and the ongoing growth in industry is creating a greater demand for fresh water as it relates to manufacturing, energy and agriculture.

Desalination capacity in the Middle East remains the world leader and Asia-Pacific is experiencing the most significant growth due to the substantial investments made in water infrastructure projects by both the Chinese and Indian governments. Currently, most desalination systems utilize thermal technology, but many industries have started shifting to simpler and less costly reverse osmosis membrane systems because of their higher efficiency. As trends have shown, companies are more often looking for ways to incorporate alternative energy sources into their operations to lessen their effect on the Earth’s environment.

Currently, many industries are working on innovative technologies related to facilities that provide both desalination and purification of water. Some examples of successful innovations include graphene-based nanocomposite membranes, and the use of artificial intelligence (AI).

Water Desalination and Purification Equipment Market Trends

The water desalination and purification equipment industry is experiencing transformative shifts driven by increasing water scarcity, industrial demand, and environmental concerns. Here are key business trends in the market:

• Increased Attention on Energy Efficiency: Across the globe manufacturers are spending considerable sums on R&D to reduce the amount of energy consumed during desalination and purification. As energy-efficient desalination advancements are made with energy recovery devices being developed as well as new advanced membrane materials, the benefit is lower costs for producing clean water which therefore leads to producing clean water economically sustainable. These advancements directly contribute to achieving sustainability targets while also controlling increasing costs related to energy consumption.
• Expansion Of Advanced Membrane Technologies: The market is experiencing an increased adoption of new generation membrane technologies such as graphene based, aquaporin and forward osmosis membranes. These new membranes provide higher rejection rates, greater fluxes and improved resistance to fouling compared to conventional membranes. As a result of these advancements, the ability to efficiently purify water will be increased, while expanding the variety of available feedwater sources that can be treated.
• Rising Hybrid Desalination Systems: There is a growing trend in hybrid systems that use multiple desalination technologies such as RO coupled with MSF or membrane distillation. Hybrid systems maximize energy usage, enhance water recovery and improve the quality of water produced by taking advantage of the strengths of different desalination methods. This provides applied solutions for challenging contaminants in complex feedwater sources.
• Integration of Digitalization & Automation: There are various smart technologies that are being integrated into desalination and purification plants such as IoT sensors, AI-based analytics and advanced control systems. These enabling digital tools provide real-time visibility.

Water Desalination and Purification Equipment Market Analysis

Based on technology, the water desalination and purification equipment market is divided into reverse osmosis (RO), UV purification, ultrafiltration (UF), multi-stage flash (MSF), nanofiltration (NF), activated carbon, and others. In 2025, reverse osmosis (RO) held the major market share, generating a revenue of USD 28.3 billion.

• Reverse osmosis (RO) has become the most widely used method of desalination. Because of increased efficiency, flexibility, and ability to harness renewable energy, it has been responsible for nearly all increases in desalination capacity around the world. Continuous innovations in membranes have resulted in improved salt rejection rates, reduced fouling of membranes, and improved service lifetimes of membranes across different seawater applications.
• Multi-stage flash (MSF) and multi-effect distillation (MED) thermal desalination installations that were built in large numbers over many years are still in operation and have a reasonable market share in the Middle East and Gulf countries, however current new-build capacity is moving to membrane technologies, with current thermal installations either being replaced with new builds or retrofitted with hybrid systems.
• Ultrafiltration (UF) plays a critical role in 2 ways; as a primary clarification technology for treating surface water, and as the primary method of pretreating reverse osmosis membranes to protect them from particles, colloid, and bacteria fouling.
• Nanofiltration (NF) plays a similar role as UF in terms of prohibiting membrane fouling; however, it is targeted at specific water quality issues, such as removal of hardness and specific contaminants such as arsenic and fluorine and may play a key role in desalination applications.
• UV disinfection units are being installed around the world at a rapid pace; used as an effective chemical-free pathogen barrier in multi-barrier treatment trains, they are of particular interest in water recycling applications and in areas with high levels of regulation against disinfection byproducts.

Based on mode of operation, the water desalination and purification equipment market is segmented into automatic systems and manual systems. Automatic systems segment held the largest share, accounting for 82.2% of the market in 2025.

• Most of the desalination and water purification systems installed in developed countries are automatic systems. These systems are built with labor cost reduction in mind, meet operational consistency requirements, and can be integrated into smart cities initiatives using the Internet of Things (IoT) sensors, artificial intelligence algorithms, and cloud-based analytics that allow for predictive maintenance, real-time performance optimization, and remote management of distributed assets.
• Sophisticated automated systems include advanced process control systems that use adaptive algorithms to adjust operation parameters based on variations in feedwater quality, fluctuations in demand for water, and price signals for energy prices, while also using digital twin technology to enable virtual commissioning, operator training, and scenario modeling prior to being implemented.
• The combination of the convergence of water treatment and principles of Industry 4.0 technology is accelerating at a global rate, as both utility companies and industrial operators require more sensor-driven equipment, interoperable data standards, cybersecurity protocols, and service contracts based on performance-based payments rather than on the capital cost of purchasing the equipment.
• There are Manual systems still exist in underdeveloped areas, rural locations, and small scale installations, but also as part of an emergency response, as well as at older facilities that still use manual controls because there are capital funding challenges, inadequate skills to perform maintenance, intermittent supply of power, and low complexity in terms of operations.
• Development banks and government funded programs are starting to require semi-automated systems with remote monitor capability as part of the eligibility criteria for funding capital projects. The global market in desalination and water purification will rely on a splitting between advanced automated "mega" systems and may operate together from existing older manual controls in order to achieve a level of consistent performance across all types of systems.

Based on end use, the water desalination and purification equipment market is segmented into municipal, industrial, residential, commercial, agriculture. In 2025, municipal dominate the market with highest market share.

• The global driver of demand for desalination is municipal water. In urban locations where there is little water known to exist, such as the Middle East, urban centers supply all their water through desalination. Desalination is also being added to the existing water supply in California, Texas, Australia and Mediterranean Europe as backup supplies for use during droughts; for newly urbanized metropolitan areas in Asia and Africa where traditional sources of water cannot keep up with the rapid pace of urban growth.
• Desalination has applications that cut across many different industrial markets. Examples include the electric power industry where operators use cooling water and process water to generate electricity; the semiconductor and electronics industries where contractors require ultra-pure water to manufacture products and all emerging hubs of activity in Asia including Taiwan, South Korea, Japan.
• The petrochemical industry where the construction of large complexes will continue to increase in the Gulf region; mining operations in Chile, Australia, and Africa where operators are utilizing desalination to treat process water for use in mineral extraction and to manage the storage of tailings; the food and beverage industry; and textile manufacturing, which will be driven by zero-liquid discharge regulations and the economics of water scarcity by the global adoption of on-site treatment technology.
• In residential environments, point-of-use and point-of-entry systems are experiencing explosive growth worldwide as consumers react to concerns about the quality of tap water and new contaminants, including PFAS and microplastics, coupled with the desire to have more control over water quality in their homes. Adoption of IoT-enabled smart devices with do-it-yourself monitoring, filter life tracking and subscription model delivery is being driven by the rapidly expanding middle-class in developed and developing countries.

North America Water Desalination and Purification Equipment Market

In 2025, the U.S. dominated the North America market, accounting for around 77% and generating around USD 6.5 billion revenue in the same year.

• North America's water desalination and purification equipment industry is experiencing transformative growth driven by acute drought conditions, aging infrastructure modernization, and stringent regulatory frameworks addressing emerging contaminants like PFAS. The region accounts for a significant share of global desalination capacity, with the United States leading through major projects in California, Texas, and Florida, while Canada focuses on industrial and remote community applications.
• Federal infrastructure funding, including the Bipartisan Infrastructure Law's substantial water infrastructure allocations, is accelerating adoption of advanced treatment technologies. The market is characterized by increasing integration of renewable energy sources, digital monitoring systems with AI-enabled optimization, and innovative approaches to brine management including mineral recovery and beneficial reuse, positioning North America as a technology innovation hub for sustainable water treatment solutions.

Europe Water Desalination and Purification Equipment Market

In Europe market, Germany leads the market 21% share in 2025 and is expected to grow at 4.4% during the forecast period.

• Europe's water desalination and purification equipment industry is experiencing transformative growth driven by intensifying water stress across Mediterranean nations, stringent EU water quality directives, and the European Green Deal's sustainability mandates.
• Climate change-induced droughts, particularly affecting Southern Europe, are compelling governments to invest in advanced desalination infrastructure while Northern European countries focus on industrial water reuse and purification technologies. The region is witnessing a paradigm shift toward energy-efficient, digitally enabled systems integrated with renewable energy sources, reflecting Europe's commitment to circular economy principles and carbon neutrality targets by 2050.

Asia Pacific Water Desalination and Purification Equipment Market

The Asia Pacific holds significant share in the market. China holds a market share of around 36% in 2025 and is anticipated to grow with a CAGR of around 7% from 2026 to 2035.

• Asia-Pacific dominates global water desalination capacity and represents the fastest-growing regional market, driven by explosive urbanization, industrial expansion, water stress affecting billions of people, and ambitious national water security strategies across China, India, Australia, Singapore, and emerging Southeast Asian economies. The region hosts the world's most advanced integrated water management systems, exemplified by Singapore's NEWater program combining membrane technologies with direct potable reuse, alongside massive coastal desalination buildouts in water-scarce Gulf-adjacent nations and Australian metropolitan areas.
• Government-led infrastructure investments, particularly China's multi-billion-dollar water security initiatives and India's Jal Jeevan Mission targeting universal water access, are catalyzing unprecedented equipment demand.
• The market is characterized by rapid localization of membrane manufacturing capabilities, integration of renewable energy with desalination facilities to address carbon intensity concerns, pioneering hybrid systems combining multiple treatment technologies, and innovative financing mechanisms including public-private partnerships and development bank support that are accelerating deployment across diverse economic and geographic contexts.

Water Desalination and Purification Equipment Market Share

Dupont is leading with 6% market share. Dupont, Veolia Water Technologies, Xylem, Toray Industries, Pentair collectively hold around 18%, indicating moderately fragmented market concentration. These prominent players are proactively involved in strategic endeavors, such as mergers & acquisitions, facility expansions & collaborations, to expand their product portfolios, extend their reach to a broad customer base, and strengthen their market position.

• DuPont is a global innovation company that delivers essential solutions across diverse markets. In the water sector, they are a leading provider of advanced separation and purification technologies, particularly renowned for their FILMTEC reverse osmosis (RO) membranes. DuPont's significant position stems from their extensive R&D, broad product portfolio, and the critical role their membrane technologies play in large-scale desalination plants and industrial water treatment worldwide, enabling efficient and cost-effective water purification.
• Veolia Water Technologies, a subsidiary of Veolia Group, specializes in water and wastewater treatment solutions and services. They offer a comprehensive range of technologies, including desalination, ultrafiltration, and advanced oxidation. Their significant position comes from their integrated approach, providing complete solutions from design to operation for complex water projects globally, and their strong focus on resource recovery and circular economy principles in water management.
• Xylem Inc. is a leading global water technology company focused on solving critical water challenges. They provide a wide array of products and services for water and wastewater transport, treatment, testing, and intelligent use. Xylem holds a significant position due to its extensive portfolio of pumps, filters, and disinfection technologies crucial for desalination and purification processes, along with its strong presence in municipal and industrial sectors worldwide.

Water desalination and purification equipment Market Companies

Major players operating in the water desalination and purification equipment industry are:

• Alfa Laval
• Applied Membranes Inc. (AMI)
• Aquatech International
• DuPont Water Solutions
• Energy Recovery Inc. (ERI
• Grundfos
• Nitto Denko
• IDE Technologies
• Kovalus Separation Solutions
• NanoH2O
• Pentair
• Toray Industries
• Veolia Water Technologies
• Vontron Technology
• Xylem

Toray Industries is a multinational corporation specializing in advanced materials, with a strong presence in the water treatment sector. They are a global leader in membrane technologies, including reverse osmosis (RO), nanofiltration (NF), and ultrafiltration (UF) membranes. Toray's significant position is built on their continuous innovation in membrane science, offering high-performance, durable solutions that are integral to numerous large-scale desalination and water purification projects globally, particularly in Asia and the Middle East.

Pentair plc is a global company dedicated to smart, sustainable water solutions for homes, businesses, and industry. They offer a broad range of water treatment products, including filtration, pumps, and purification systems. Pentair's significant position is attributed to its diverse product offerings that cater to various scales of water purification, from residential to industrial, and its strong distribution network and focus on providing efficient and reliable solutions for improving water quality.

Water Desalination and Purification Equipment Industry News

• In February 2026, Applied Membranes Inc. (AMI) partnered with NX Filtration to implement hollow fiber nanofiltration (HFNF) membrane technology for a U.S. pharmaceutical manufacturer seeking to reduce freshwater consumption and wastewater discharge.
• In November 2025, Energy Recovery secured USD 32.8 million in desalination contracts in Saudi Arabia, strengthening its long‑standing partnership with major regional SWRO developers.
• In September 2025, Grundfos announced that it received a Distinct Mention Award for “Desalination Plant of the Year” at the Global Water Awards 2025, hosted during the Global Water Summit in Paris
• June 2025, Aquatech acquired Singapore‑based Century Water to expand its capabilities in ultrapure water treatment and high‑purity wastewater recycling, especially for semiconductor and pharmaceutical clients.

The water desalination and purification equipment market research report includes in-depth coverage of the industry with estimates & forecasts in terms of revenue (USD Billion) and volume (Tons) from 2022 to 2035, for the following segments:

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Market, by Technology

• Reverse Osmosis (RO)
• UV purification
• Ultrafiltration (UF)
• Multi-Stage Flash (MSF)
• Nanofiltration (NF)
• Activated carbon
• Others

Market, by Mode of Operation

• Automatic systems
• Manual systems

Market, by System Scale

• Small-scale system (0-499 m³/day)
  • Ultra-small/low-flow systems [100-299 m³/day]
  • Small systems [300-499 m³/day]
• Medium-scale system (500-9,999 m³/day)
• Large-scale systems (10,000+ m³/day)

Market, by Source Water Type

• Seawater
• Brackish water
• River water
• Others

Market, by End Use

• Municipal
• Industrial
• Residential
• Commercial
• Agriculture

The above information is provided for the following regions and countries:

• North America
  • U.S.
  • Canada
• Europe
  • Germany
  • UK
  • France
  • Italy
  • Spain
• Asia Pacific
  • China
  • Japan
  • India
  • South Korea
  • Australia
• Latin America
  • Brazil
  • Mexico
• Middle East and Africa
  • South Africa
  • Saudi Arabia
  • UAE