The Europe water and wastewater treatment market was valued at USD 81.64 billion in 2025. It is estimated at USD 85.76 billion in 2026 and is projected to reach USD 142.31 billion by 2036, growing at a CAGR of 5.2% over the 2026-2036 forecast period. This report assesses the market in depth, covering EU and U.K. water regulation, PFAS and micropollutant rules, financing and funding gaps, technology and service trends, Porter's five forces, the value chain, country-level investment programs, and the competitive landscape.
The study covers the technologies, chemicals, systems, and services that make drinking and process water safe and that collect, treat, recycle, or discharge wastewater from towns and industry. On the technology side, it spans membrane separation and filtration (reverse osmosis, ultrafiltration, microfiltration, and nanofiltration), membrane bioreactors, activated sludge, clarification, dissolved air flotation, chlorination, UV and ozone, industrial demineralization, and sludge management. Chemicals, automation and process control, engineering, design, and construction work, and plant operation and maintenance services complete the scope. The value chain runs from makers of membranes, activated carbon, resins, pumps, chemicals, and instruments through equipment makers, engineering contractors, and plant and network operators to municipal utilities and industrial users.
Europe is a mature market in which regulation sets the pace of spending, and because most of the population is already served by public sewers and treatment plants, investment goes mainly into operating, renewing, and upgrading existing assets rather than adding new capacity. In 2022, value added by the EU water sector reached EUR 111.7 billion and employed 1.6 million people, according to the European Water Resilience Strategy issued in mid-2025, while Europe holds 40% of the world's water technology patents. For 2025-2030, the regulator Ofwat set a record spending allowance of GBP 104 billion for water companies in England and Wales, made up of GBP 60 billion of base and GBP 44 billion of enhancement expenditure.
Cost is the main restraint, since putting current EU water law into practice faces a shortfall of at least EUR 23 billion a year, according to the European Commission, and tariffs cannot cover every upgrade, while energy-intensive treatment pushes operating costs higher. A pending legal challenge to the producer responsibility rules that would make pharmaceutical and cosmetics makers fund most quaternary treatment adds uncertainty. Gaps in collection and treatment infrastructure remain a challenge in parts of southern, central, and eastern Europe; Italy and Spain were both fined by the EU's top court in 2018 over agglomerations that failed to comply, and according to ISTAT, Italy lost 42.4% of the drinking water fed into municipal networks in 2022. The lower population equivalent threshold also brings thousands of small rural agglomerations into scope, so network repair competes with treatment upgrades for funds.
Demand for energy-efficient and advanced treatment creates the main opportunities, including high-efficiency aeration, anaerobic digestion and biogas, heat recovery, and process control. Switzerland is upgrading about 130 of its roughly 700 treatment plants with ozonation or activated carbon at a cost of about CHF 1.2 billion, a model that EU rules will extend to large plants across the region. Water reuse is still largely untapped, since the European Commission reports that only 2.4% of treated EU wastewater is further treated for reuse. Key trends include PFAS and micropollutant removal across the water cycle, with growing demand for carbon reactivation and destruction services, digitalization of metering, leak detection, and monitoring, and the recovery of energy and water from wastewater, supported by the Water Reuse Regulation (EU) 2020/741 and projects such as Veolia's wastewater-based heating and cooling networks in France.
By type, the market is divided into wastewater treatment and water treatment. Wastewater treatment is expected to hold the larger share in 2026, reflecting the large collection and treatment asset base built under the 1991 directive and the new obligations of its recast for tertiary nutrient removal, quaternary micropollutant treatment, and energy neutrality. The same segment is also expected to grow at the higher CAGR, since the recast directive drives upgrades at plants of almost every size through 2045. Water treatment continues to grow steadily, supported by PFAS compliance in drinking water and the management of Legionella risk in distribution systems.
The offering analysis spans treatment technologies; treatment chemicals; process control & automation; design, engineering, and construction services; and operation & maintenance services. Operation & maintenance services are expected to hold the biggest share in 2026, as Europe's installed base of plants and networks is mature and private operators run many systems under delegated management and concession contracts in France, Spain, and other countries. Process control & automation is expected to grow at the highest CAGR, driven by new monitoring obligations, leakage reduction targets, and energy audits under the recast directives. Within treatment technologies, membrane separation and filtration is the largest group, while membrane bioreactors are expected to grow the fastest as plants seek compact, high-quality treatment suited to reuse.
By application, the market is divided into municipal and industrial applications, with industrial demand broken down into pharmaceuticals and chemicals, food & beverages, power generation, oil & gas, petrochemical, mining, pulp and paper, semiconductors, and other industries. Municipal applications are expected to hold the larger share in 2026, supported by EU directive deadlines, the British regulatory price review, and the replacement of old pipes and plants. Industrial applications are expected to grow at the higher CAGR, as water scarcity and tighter discharge permits under the revised Industrial Emissions Directive move plants toward reuse and advanced treatment. Pharmaceuticals and chemicals form the largest industrial application, while semiconductors are expected to grow the fastest as new fabs and data centers are built across the region.
Germany is expected to hold the largest share of the market in 2026 because, according to BDEW, it operates more than 9,100 wastewater plants and 594,335 kilometers of sewer lines, the biggest installed base in the region, and treatment intensity is rising, as national sludge rules will oblige plants larger than 100,000 population equivalent to recover phosphorus from 2029. France and the U.K. are expected to rank second and third. France, where both Veolia and SUEZ are based, relies widely on outsourced operation of public water services, and its Plan Eau targets lower water withdrawals and 1,000 reuse projects by 2030, while U.K. demand rests on the water companies' 2025-2030 investment program, with storm overflows and river quality as priorities. Italy is focused on network repair and leakage reduction, backed by EU recovery funds.
Poland is expected to grow at the highest CAGR during the forecast period, as it completes its sewer and treatment network with EU cohesion funding; contracts signed by March 2026 under the FEnIKS program's water and sewage measure were worth almost PLN 5 billion and will fund 30 treatment plants and new connections for 300,000 residents. Spain is expected to post the second-highest growth, driven by drought spending, desalination, reuse, and its PERTE plan to digitalize the water cycle. Switzerland, Sweden, Belgium, and Denmark are mature markets with slower growth, where spending centers on micropollutants, sludge handling, and energy efficiency.
The market is fragmented, bringing together global water operators, regulated utilities, water technology firms, chemical suppliers, and building and infrastructure companies, and no single player dominates because public or regulated utilities deliver most municipal services. Competition centers on long-term delegated management contracts and concessions, the breadth of technology and chemical portfolios, local service capability, compliance expertise, and access to capital. Recent moves include Veolia's buyout of the remaining stake in Water Technologies and Solutions in June 2025, Kemira's agreement in February 2026 to acquire the German coagulant maker SIDRA Wasserchemie, and Veralto's completion of the In-Situ acquisition in January 2026. Utilities and operators are also raising capital, as seen in United Utilities' GBP 11.5 billion 2025-2030 investment program and a EUR 500 million EIB loan for SUEZ investments in France. Acquisitions, contracts, divestments, and financing remain the main strategies.
Key companies profiled in the report include SUEZ SA (France), Veolia Environnement SA (France), Xylem Inc. (U.S.), DuPont de Nemours, Inc. (U.S.), 3M Company (U.S.), Pentair plc (U.K.), United Utilities Group PLC (U.K.), Kingspan Group plc (Ireland), Dow Inc. (U.S.), BASF SE (Germany), Veralto Corporation (U.S.), and Kemira Oyj (Finland).
The study covers the technologies, chemicals, systems, and services that make drinking and process water safe and that collect, treat, recycle, or discharge wastewater from towns and industry. On the technology side, it spans membrane separation and filtration (reverse osmosis, ultrafiltration, microfiltration, and nanofiltration), membrane bioreactors, activated sludge, clarification, dissolved air flotation, chlorination, UV and ozone, industrial demineralization, and sludge management. Chemicals, automation and process control, engineering, design, and construction work, and plant operation and maintenance services complete the scope. The value chain runs from makers of membranes, activated carbon, resins, pumps, chemicals, and instruments through equipment makers, engineering contractors, and plant and network operators to municipal utilities and industrial users.
Europe is a mature market in which regulation sets the pace of spending, and because most of the population is already served by public sewers and treatment plants, investment goes mainly into operating, renewing, and upgrading existing assets rather than adding new capacity. In 2022, value added by the EU water sector reached EUR 111.7 billion and employed 1.6 million people, according to the European Water Resilience Strategy issued in mid-2025, while Europe holds 40% of the world's water technology patents. For 2025-2030, the regulator Ofwat set a record spending allowance of GBP 104 billion for water companies in England and Wales, made up of GBP 60 billion of base and GBP 44 billion of enhancement expenditure.
Market Dynamics
Tighter regulation is the main growth driver, led by the recast Urban Wastewater Treatment Directive (EU) 2024/3019, which, in force since 1 January 2025, lowers the threshold for collection and secondary treatment to agglomerations of 1,000 population equivalent, phases in tertiary removal of nitrogen and phosphorus so that every plant serving 150,000 population equivalent or more complies by 2039, calls for quaternary micropollutant treatment at the largest plants by 2045, and sets a national energy neutrality goal for the sector by 2045. Since 12 January 2026, every member state has had to keep drinking water within the PFAS limits set by the revised Drinking Water Directive, and Germany will apply a stricter limit for four PFAS from January 2028. Public health adds to demand: data from the European Centre for Disease Prevention and Control (ECDC) show that the EU/EEA notification rate for Legionnaires' disease rose from 1.3 per 100,000 people in 2015 to 3.2 in 2023, supporting investment in disinfection, UV, and water quality analytics.Cost is the main restraint, since putting current EU water law into practice faces a shortfall of at least EUR 23 billion a year, according to the European Commission, and tariffs cannot cover every upgrade, while energy-intensive treatment pushes operating costs higher. A pending legal challenge to the producer responsibility rules that would make pharmaceutical and cosmetics makers fund most quaternary treatment adds uncertainty. Gaps in collection and treatment infrastructure remain a challenge in parts of southern, central, and eastern Europe; Italy and Spain were both fined by the EU's top court in 2018 over agglomerations that failed to comply, and according to ISTAT, Italy lost 42.4% of the drinking water fed into municipal networks in 2022. The lower population equivalent threshold also brings thousands of small rural agglomerations into scope, so network repair competes with treatment upgrades for funds.
Demand for energy-efficient and advanced treatment creates the main opportunities, including high-efficiency aeration, anaerobic digestion and biogas, heat recovery, and process control. Switzerland is upgrading about 130 of its roughly 700 treatment plants with ozonation or activated carbon at a cost of about CHF 1.2 billion, a model that EU rules will extend to large plants across the region. Water reuse is still largely untapped, since the European Commission reports that only 2.4% of treated EU wastewater is further treated for reuse. Key trends include PFAS and micropollutant removal across the water cycle, with growing demand for carbon reactivation and destruction services, digitalization of metering, leak detection, and monitoring, and the recovery of energy and water from wastewater, supported by the Water Reuse Regulation (EU) 2020/741 and projects such as Veolia's wastewater-based heating and cooling networks in France.
Segment Analysis
The report analyzes the market by type, offering, application, and country, helping stakeholders identify where regulatory spending is concentrated and which offerings and end uses are growing fastest.By type, the market is divided into wastewater treatment and water treatment. Wastewater treatment is expected to hold the larger share in 2026, reflecting the large collection and treatment asset base built under the 1991 directive and the new obligations of its recast for tertiary nutrient removal, quaternary micropollutant treatment, and energy neutrality. The same segment is also expected to grow at the higher CAGR, since the recast directive drives upgrades at plants of almost every size through 2045. Water treatment continues to grow steadily, supported by PFAS compliance in drinking water and the management of Legionella risk in distribution systems.
The offering analysis spans treatment technologies; treatment chemicals; process control & automation; design, engineering, and construction services; and operation & maintenance services. Operation & maintenance services are expected to hold the biggest share in 2026, as Europe's installed base of plants and networks is mature and private operators run many systems under delegated management and concession contracts in France, Spain, and other countries. Process control & automation is expected to grow at the highest CAGR, driven by new monitoring obligations, leakage reduction targets, and energy audits under the recast directives. Within treatment technologies, membrane separation and filtration is the largest group, while membrane bioreactors are expected to grow the fastest as plants seek compact, high-quality treatment suited to reuse.
By application, the market is divided into municipal and industrial applications, with industrial demand broken down into pharmaceuticals and chemicals, food & beverages, power generation, oil & gas, petrochemical, mining, pulp and paper, semiconductors, and other industries. Municipal applications are expected to hold the larger share in 2026, supported by EU directive deadlines, the British regulatory price review, and the replacement of old pipes and plants. Industrial applications are expected to grow at the higher CAGR, as water scarcity and tighter discharge permits under the revised Industrial Emissions Directive move plants toward reuse and advanced treatment. Pharmaceuticals and chemicals form the largest industrial application, while semiconductors are expected to grow the fastest as new fabs and data centers are built across the region.
Regional Analysis
The report provides analysis of 10 countries (Germany, France, the U.K., Italy, Spain, Poland, Switzerland, Sweden, Belgium, and Denmark) and the Rest of Europe. The country analysis considers the installed base of treatment plants and networks, national rules and transposition of EU directives, funding sources such as EU cohesion funds and EIB lending, and water stress.Germany is expected to hold the largest share of the market in 2026 because, according to BDEW, it operates more than 9,100 wastewater plants and 594,335 kilometers of sewer lines, the biggest installed base in the region, and treatment intensity is rising, as national sludge rules will oblige plants larger than 100,000 population equivalent to recover phosphorus from 2029. France and the U.K. are expected to rank second and third. France, where both Veolia and SUEZ are based, relies widely on outsourced operation of public water services, and its Plan Eau targets lower water withdrawals and 1,000 reuse projects by 2030, while U.K. demand rests on the water companies' 2025-2030 investment program, with storm overflows and river quality as priorities. Italy is focused on network repair and leakage reduction, backed by EU recovery funds.
Poland is expected to grow at the highest CAGR during the forecast period, as it completes its sewer and treatment network with EU cohesion funding; contracts signed by March 2026 under the FEnIKS program's water and sewage measure were worth almost PLN 5 billion and will fund 30 treatment plants and new connections for 300,000 residents. Spain is expected to post the second-highest growth, driven by drought spending, desalination, reuse, and its PERTE plan to digitalize the water cycle. Switzerland, Sweden, Belgium, and Denmark are mature markets with slower growth, where spending centers on micropollutants, sludge handling, and energy efficiency.
Competitive Landscape
The report reviews key growth strategies, competitive benchmarking, the competitive dashboard (industry leaders, market differentiators, vanguards, and emerging companies), and market ranking by key players, together with company profiles covering company overview, financial overview, product portfolio, strategic developments, and SWOT analysis.The market is fragmented, bringing together global water operators, regulated utilities, water technology firms, chemical suppliers, and building and infrastructure companies, and no single player dominates because public or regulated utilities deliver most municipal services. Competition centers on long-term delegated management contracts and concessions, the breadth of technology and chemical portfolios, local service capability, compliance expertise, and access to capital. Recent moves include Veolia's buyout of the remaining stake in Water Technologies and Solutions in June 2025, Kemira's agreement in February 2026 to acquire the German coagulant maker SIDRA Wasserchemie, and Veralto's completion of the In-Situ acquisition in January 2026. Utilities and operators are also raising capital, as seen in United Utilities' GBP 11.5 billion 2025-2030 investment program and a EUR 500 million EIB loan for SUEZ investments in France. Acquisitions, contracts, divestments, and financing remain the main strategies.
Key companies profiled in the report include SUEZ SA (France), Veolia Environnement SA (France), Xylem Inc. (U.S.), DuPont de Nemours, Inc. (U.S.), 3M Company (U.S.), Pentair plc (U.K.), United Utilities Group PLC (U.K.), Kingspan Group plc (Ireland), Dow Inc. (U.S.), BASF SE (Germany), Veralto Corporation (U.S.), and Kemira Oyj (Finland).
How This Report Helps
- Provides reliable market size estimates and long-term forecasts for the Europe water and wastewater treatment market through 2036.
- Explains how the recast Urban Wastewater Treatment Directive, PFAS limits, and the U.K. price review set the investment agenda.
- Assesses the impact of funding gaps, tariff affordability, energy costs, and infrastructure gaps on project timing.
- Identifies high-growth opportunities across type, offering, treatment technology, application, industrial end use, and country.
- Tracks emerging areas such as PFAS removal, quaternary treatment, membrane bioreactors, digital water, and water reuse.
- Benchmarks leading operators, technology providers, and chemical suppliers on portfolios, strategies, and recent developments.
- Supports market entry, product planning, partnership, and investment decisions for technology suppliers, service providers, utilities, and investors.
Key Questions Answered
- How large is the Europe water and wastewater treatment market today, and how will it grow through 2036?
- How will the recast Urban Wastewater Treatment Directive and PFAS rules change utility spending through 2045?
- What are the main drivers, restraints, opportunities, challenges, and trends shaping the market?
- How are funding gaps and tariff limits affecting the delivery of compliance investment?
- Which type, offering, and application segments will grow the fastest, and which treatment technologies are gaining ground?
- How quickly will water reuse, energy recovery, and digital monitoring be adopted across Europe?
- Which countries offer the most attractive opportunities, and how do mature and catching-up markets differ?
- Who are the leading companies in the market, and how do they compete?
- What acquisitions, contracts, and financing activities are shaping the competitive landscape?
Table of Contents
1. Introduction
2. Research Methodology
3. Executive Summary
4. Market Insights
5. Europe Water and Wastewater Treatment Market Assessment, by Type
6. Europe Water and Wastewater Treatment Market Assessment, by Offering
7. Europe Water and Wastewater Treatment Market Assessment, by Application
8. Europe Water and Wastewater Treatment Market Assessment, by Country
9. Competition Analysis
10. Company Profiles
11. Appendix
LIST OF TABLES
LIST OF FIGURES
Companies Mentioned
- SUEZ SA
- Veolia Environnement SA
- Xylem Inc.
- DuPont de Nemours, Inc.
- 3M Company
- Pentair plc
- United Utilities Group PLC
- Kingspan Group plc
- Dow Inc.
- BASF SE
- Veralto Corporation
- Kemira Oyj
