Market map: Water security & desalination — the categories that will matter next

Water stress is no longer confined to arid regions. By 2025, roughly 2.4 billion people live in water-stressed countries, and the European Environment Agency estimates that 30% of the EU population faces seasonal water scarcity events in any given year. Municipal utilities, industrial operators, and agricultural producers across Europe now confront supply deficits that were once considered unlikely outside the Mediterranean basin. The market for water security and desalination solutions has responded accordingly, expanding from $18.9 billion globally in 2023 to a projected $28.4 billion by 2028, with Europe representing approximately 22% of that spend.

This market map identifies the solution categories, competitive dynamics, and whitespace opportunities that procurement teams need to navigate as water security moves from a peripheral concern to a core operational risk.

Why It Matters

The convergence of climate change, population growth, and industrial demand has transformed water from an assumed resource into a strategic input requiring active management. The World Resources Institute's Aqueduct tool now classifies 17 countries as facing "extremely high" baseline water stress, with several Southern European nations approaching that threshold. Spain's reservoir levels dropped below 50% capacity in 2024, triggering mandatory restrictions across Catalonia and Andalusia. Italy's Po River basin experienced its worst drought in 70 years in 2022, with agricultural losses exceeding EUR 6 billion.

For procurement professionals, the implications extend well beyond direct water costs. Supply chain disruptions from water scarcity affected 35% of European manufacturers in 2024, according to CDP Water Security disclosures. Semiconductor fabrication, pharmaceutical production, food processing, and data center cooling all depend on reliable, high-quality water supplies. The EU Water Framework Directive's tightening abstraction limits, combined with emerging corporate water stewardship requirements under the Corporate Sustainability Reporting Directive (CSRD), mean that passive reliance on municipal supply is becoming untenable for large industrial consumers.

The regulatory landscape is accelerating investment. The EU's revised Drinking Water Directive (2020/2184) mandates risk-based monitoring and treatment upgrades across member states. Spain's 2024 National Water Plan allocated EUR 12 billion for desalination expansion and water reuse infrastructure. France's "Plan Eau" commits EUR 475 million annually to modernize water infrastructure. These policy signals, combined with the physical reality of declining freshwater availability, create a structural demand shift that will reshape procurement strategies for the next decade.

Market Categories

Seawater Desalination

Seawater reverse osmosis (SWRO) remains the dominant desalination technology, accounting for 69% of global installed capacity. Energy consumption has declined steadily, from 5-6 kWh per cubic meter in 2010 to 2.5-3.2 kWh in modern plants, driven by advances in membrane technology, energy recovery devices, and process optimization. Spain operates the largest desalination fleet in Europe, with 765 plants producing over 5 million cubic meters per day. The category is mature but continues to evolve through integration with renewable energy and modular plant designs that reduce capital costs and deployment timelines.

Brackish Water and Inland Desalination

Brackish water reverse osmosis (BWRO) treats lower-salinity sources at 0.5-1.5 kWh per cubic meter, roughly half the energy cost of seawater treatment. This category serves inland regions where seawater access is impractical, including agricultural zones, mining operations, and industrial parks. The European market is growing as aquifer salinity increases from over-extraction and seawater intrusion. Concentrate management remains the primary technical challenge, with zero-liquid discharge (ZLD) systems adding 30-50% to operating costs but increasingly required by environmental regulators.

Water Reuse and Recycling

The EU Water Reuse Regulation (2020/741), effective since June 2023, establishes minimum quality standards for treated wastewater used in agricultural irrigation. This regulatory catalyst has unlocked a category that was previously constrained by fragmented national standards. Direct potable reuse (DPR) and indirect potable reuse (IPR) technologies represent the high end of the market, with treatment trains incorporating ultrafiltration, reverse osmosis, and advanced oxidation. Singapore's NEWater program and Windhoek, Namibia's direct potable reuse plant provide operational precedents, but European adoption remains nascent, with fewer than 20 operational reuse facilities meeting the new EU standards as of early 2026.

Smart Water Networks and Leak Detection

Non-revenue water (water lost to leaks, theft, and metering errors) averages 23% across European utilities, with some networks exceeding 40%. AI-powered acoustic sensors, satellite-based leak detection, and digital twin platforms represent a rapidly growing category targeting this waste. The addressable market is substantial: reducing European non-revenue water to best-practice levels of 10-12% would recover approximately 7 billion cubic meters annually, equivalent to the output of 70 large desalination plants. Procurement teams should evaluate these solutions as cost-effective alternatives to new supply infrastructure, with typical payback periods of 18-36 months.

Decentralized and Point-of-Use Treatment

Containerized treatment systems, atmospheric water generators, and point-of-use purification devices serve applications where centralized infrastructure is unavailable, uneconomical, or too slow to deploy. This category is growing in European agricultural contexts, where farms face tightening abstraction permits and need on-site treatment of lower-quality sources. Modular systems with capacities of 50-500 cubic meters per day can be deployed in weeks rather than the years required for centralized plants.

Nature-Based Solutions and Managed Aquifer Recharge

Constructed wetlands, managed aquifer recharge (MAR), and watershed restoration represent lower-cost, lower-energy alternatives to engineered treatment. The Netherlands' dune infiltration systems, which have operated for over a century, demonstrate the long-term viability of this approach. MAR projects in Spain and Italy are expanding as regulators recognize their dual benefits for flood management and drought resilience. These solutions typically cost 30-60% less than equivalent engineered capacity but require larger land footprints and longer development timelines.

Key Players

Established Leaders

Veolia operates the world's largest water treatment portfolio, with 4,300 water and wastewater facilities globally, including major desalination plants in Barcelona and the Middle East. Their 2024 acquisition of SUEZ consolidated their position in European municipal and industrial water markets.

ACCIONA ranks among the world's top three desalination operators, with 80 plants across five continents. Their Al Khobar II plant in Saudi Arabia (210,000 cubic meters per day) and the Putatan II plant in the Philippines demonstrate their capacity for mega-scale SWRO projects. In Europe, ACCIONA operates multiple plants across Spain's Mediterranean coast.

Xylem provides infrastructure technology spanning pumping, treatment, analytics, and digital solutions. Their acquisition of Evoqua Water Technologies in 2023 for $7.5 billion significantly expanded their industrial water treatment capabilities and customer base.

SUEZ (now Veolia subsidiary) maintains operational presence across European water utilities and industrial clients, with particular strength in membrane technology through their partnership with LG Chem.

Growth-Stage Innovators

Gradiant has developed counter-flow reverse osmosis and selective contaminant extraction technologies that reduce energy consumption by 30-50% compared to conventional processes. Their focus on industrial water treatment for semiconductor, pharmaceutical, and energy clients positions them at the intersection of water security and high-value manufacturing.

Elemental Water Makers offers solar-powered desalination systems designed for off-grid and island applications, with installations across the Mediterranean, Caribbean, and Pacific. Their pay-per-liter business model removes upfront capital barriers.

IDRICA provides AI-driven water network management software used by utilities serving over 40 million people. Their platform integrates hydraulic modeling, leak detection, and demand forecasting into a unified digital twin.

Key Investors and Funders

Xylem Watermark and Imagine H2O have emerged as prominent accelerators and funders for water technology startups, with portfolios spanning treatment, monitoring, and data analytics.

European Investment Bank (EIB) provided EUR 3.2 billion in water infrastructure lending in 2024, with priority given to projects incorporating climate resilience and digital monitoring.

Breakthrough Energy Ventures has expanded into water technology, recognizing the climate-water nexus as a critical investment theme.

Water Security KPIs: Benchmark Ranges

Metric	Below Average	Average	Above Average	Top Quartile
SWRO Energy Consumption (kWh/m³)	>3.5	3.0-3.5	2.5-3.0	<2.5
Non-Revenue Water (%)	>30%	20-30%	12-20%	<12%
Water Reuse Rate (municipal)	<5%	5-15%	15-30%	>30%
Treatment Cost (EUR/m³, SWRO)	>1.20	0.80-1.20	0.50-0.80	<0.50
System Availability (%)	<92%	92-96%	96-99%	>99%
Membrane Replacement Interval	<3 years	3-5 years	5-7 years	>7 years

Whitespace Opportunities

Industrial Water Circularity Platforms

Most industrial water management remains linear: abstract, use, discharge. Platforms that integrate real-time water quality monitoring, treatment optimization, and cross-facility water exchange represent a significant whitespace. The industrial symbiosis model, where one facility's wastewater becomes another's feedstock, has proven viable at Denmark's Kalundborg Eco-Industrial Park but lacks the digital infrastructure for broader adoption. Procurement teams managing multi-site operations should prioritize vendors offering closed-loop water management across portfolios.

Energy-Water Nexus Optimization

Desalination's energy intensity creates a natural coupling with renewable energy. Solar-powered SWRO systems in Southern Europe can produce water at EUR 0.40-0.60 per cubic meter when co-located with dedicated PV installations, competitive with conventional grid-powered plants. The whitespace lies in flexible desalination plants that modulate production based on renewable availability, providing both water supply and grid balancing services. Masdar's Ghantoot pilot in Abu Dhabi demonstrated this concept, and several European utilities are exploring similar configurations.

Predictive Water Risk Analytics

Corporate water risk assessment remains largely backward-looking, relying on annual CDP disclosures and periodic supply chain surveys. Real-time water risk platforms that integrate satellite data, weather forecasting, regulatory monitoring, and supply chain mapping represent a growing category. Companies like WaterPlan and Source Global are building platforms that enable procurement teams to quantify water risk at the facility level and incorporate it into supplier evaluation frameworks.

Agricultural Precision Irrigation

Agriculture consumes 44% of Europe's freshwater withdrawals, yet irrigation efficiency across the EU averages only 60-65%, compared to the 90%+ achieved by precision systems using soil moisture sensors, weather-adaptive scheduling, and variable-rate application. The gap between current practice and technical potential represents one of the largest water savings opportunities in Europe. Companies like Netafim (Orbia subsidiary), Rivulis, and Lishtot are addressing different segments of this market.

Action Checklist

• Map your organization's water consumption by source, quality requirement, and facility to identify concentration risks
• Assess non-revenue water rates across owned or leased facilities and evaluate smart network solutions where rates exceed 15%
• Evaluate water reuse feasibility for process water, cooling water, and irrigation applications at major facilities
• Require water risk disclosure from critical suppliers, including source diversification and drought contingency plans
• Investigate EU and national funding mechanisms for water infrastructure investments, including EIB green loans and Cohesion Fund allocations
• Benchmark water intensity (cubic meters per unit of output) against sector peers using CDP Water Security data
• Develop procurement specifications that include water efficiency and circularity requirements for new equipment and facilities

Sources

• World Resources Institute. (2025). Aqueduct Water Risk Atlas: 2025 Update. Washington, DC: WRI.
• European Environment Agency. (2025). Water Resources Across Europe: Confronting Water Stress. Copenhagen: EEA.
• Global Water Intelligence. (2025). Desalination Markets 2025: Global Forecast and Analysis. Oxford: GWI.
• CDP. (2025). A Wave of Change: Corporate Water Security Disclosure in Europe. London: CDP Worldwide.
• European Commission. (2023). Regulation (EU) 2020/741: Minimum Requirements for Water Reuse. Brussels: Official Journal of the European Union.
• International Desalination Association. (2025). IDA Desalination and Water Reuse Handbook: Technology, Economics, and Market Trends. Topsfield, MA: IDA.
• European Investment Bank. (2025). Water Sector Lending Report 2024. Luxembourg: EIB Publications.