Water scarcity, tighter discharge rules, and aging infrastructure are pushing utilities and industries to rethink how they treat and reuse water. According to Grand View Research, that pressure is turning water and wastewater treatment equipment into one of the steadier growth markets in industrial infrastructure.

Core Market Dimensions & Forecasts

The global water and wastewater treatment equipment market was valued at USD 71.0 billion in 2025. It is estimated at USD 74.2 billion in 2026 and is projected to reach USD 106.4 billion by 2033, growing at a CAGR of 5.3% from 2026 to 2033.

What's driving growth

• Population growth and urbanization are raising demand for safe drinking water and adding load to municipal systems.
• Stricter discharge regulations are forcing both cities and factories to upgrade treatment capacity.
• Industrialization is increasing the volume and complexity of wastewater.
• Technology adoption, particularly membrane filtration and UV disinfection, is accelerating as operators look for higher efficacy and efficiency.

What's holding it back

High upfront capital costs and operational complexity remain the biggest hurdles. Equipment, pipeline integration, automation, and long-term maintenance add up, and budget-constrained municipalities, especially in developing regions, often delay modernization because of long payback periods.

Segment snapshot

• By application: Municipal accounted for a 65.8% revenue share in 2025. Industrial is the faster-growing segment, with a projected CAGR of 5.6%.
• By equipment: Tertiary treatment led with a 44.5% share in 2025 and is also forecast to grow at 5.6%. Demand is rising as water reuse expands and quality standards tighten, since tertiary treatment is the polishing stage that handles pathogens, nutrients, and residual contaminants.

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Key Industry Competitors

The report describes the market as moderately concentrated. Large global players dominate with broad portfolios and strong R&D, while smaller and regional firms find room to grow, especially in developing markets.

Leading companies profiled include:

• Xylem, Inc.
• Pentair plc
• Aquatech International LLC
• Ecolab Inc.
• DuPont
• Calgon Carbon Corporation
• Toshiba Water Solutions
• Veolia Group
• Ecologix Environmental Systems
• Evonik Industries AG
• Parkson Corporation
• Lenntech B.V.
• Samco Technologies
• Koch Membrane Systems
• General Electric

Mature vs. emerging players
Established names such as Xylem, Pentair, Aquatech, and Ecolab compete through M&A, partnerships, and investment in membranes, digital monitoring, and energy-efficient systems. Their strength is global reach and end-to-end portfolios. Their weakness is heavy capital needs and revenue tied to long municipal and industrial procurement cycles.

Emerging players like Lenntech, Samco, and Koch Membrane Systems win through regional focus, cost-effective and application-specific systems, and flexibility on customization. The trade-off is a narrower portfolio and limited ability to compete for large turnkey international projects.

Recent moves worth noting

• May 2023: Xylem acquired Evoqua, broadening its reach in end markets such as food and beverage, power, life sciences, and microelectronics, and strengthening its position in Europe and North America.
• April 2024: Thermax opened a two-acre manufacturing facility in Pune dedicated to water and wastewater treatment solutions.
• March 2025: DuPont Water Solutions launched WAVE PRO, an online modeling tool for designing and optimizing ultrafiltration systems.

Consolidation is also visible more broadly, with deals centered on advanced filtration, modular systems, and PFAS removal.

Regional Market Revenue Breakdown

Asia Pacific is the largest region, with a 36.0% revenue share in 2025. China held the biggest national share, driven by severe water pollution, rising industrial demand, and strict regulation. India is the standout growth story, forecast at a 6.3% CAGR through 2033. Japan is also investing heavily in water infrastructure across the region.

North America is growing on the back of infrastructure renewal and regulatory compliance. The U.S. is projected to grow at 3.6% CAGR, while Canada is expected to reach 4.1%, supported by sustainable water management and the needs of both urban and remote communities.

Europe is shaped by strict environmental regulation and sustainability goals. Germany emphasizes membrane filtration and energy-efficient systems, while France is focused on nutrient removal and energy-efficient solutions tied to its net-zero commitments.

Middle East & Africa demand is driven by water scarcity and rapid urbanization. Saudi Arabia and the UAE lead in large-scale desalination, and Saudi Arabia is also investing in wastewater recycling.

Latin America is expanding as pollution and urban growth increase pressure on water systems. Brazil is the key market, supported by national sanitation initiatives and a growing emphasis on water reuse.

The Bottom Line

With steady 5.3% growth, a tertiary-treatment-led product mix, and Asia Pacific setting the pace, the market rewards players who combine advanced membrane and disinfection technology with regional execution. For equipment makers, investors, and utilities, the opportunities lie in water reuse, industrial recycling, and infrastructure modernization.

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