The global water and wastewater treatment equipment market size was estimated at USD 71.01 billion in 2025 and is projected to reach USD 106.39 billion by 2033, growing at a CAGR of 5.3% from 2026 to 2033. This steady market growth is primarily driven by factors such as rapid population growth, accelerating urbanization, increasing industrial activities, and the implementation of stricter environmental regulations across both developed and developing economies. As freshwater resources become more constrained, governments and industries are increasingly prioritizing efficient water management and wastewater treatment solutions to ensure long-term sustainability.

Rising awareness regarding environmental pollution, along with stringent wastewater management regulations imposed by regulatory authorities, is significantly contributing to the expansion of the industry. Additionally, the growing demand for sustainable, energy-efficient, and cost-effective wastewater treatment technologies is encouraging the adoption of advanced treatment equipment. The market is further expected to benefit from continued industrialization, population expansion, and tighter government regulations governing wastewater discharge standards, particularly in urban and industrial zones. To strengthen market penetration, companies operating in the water and wastewater treatment equipment industry are increasingly forming strategic partnerships and collaborations with end-users to facilitate the adoption of advanced and next-generation technologies. Moreover, rising investments in research and development aimed at improving treatment efficiency, reducing operational costs, and enhancing system reliability are anticipated to support overall market growth. Small and medium-sized enterprises are also adopting modern water and wastewater treatment technologies, thereby creating additional growth opportunities for equipment manufacturers.

Numerous growth opportunities have emerged within the industry due to rapid technological advancements and the introduction of innovative water treatment solutions. These advancements provide significant potential for market players to deploy advanced systems and gain a competitive edge in the global market. The market is witnessing increasing adoption of membrane filtration technologies and ultraviolet disinfection systems, owing to their high efficiency, superior contaminant removal capabilities, and suitability for treating both water and wastewater to meet stringent quality standards.

Key Market Trends & Insights:

• Asia Pacific dominated the water and wastewater treatment equipment market with the largest revenue share of 36% in 2025. This dominance can be attributed to rapid industrialization, extensive urban development, expanding population, and rising investments in water infrastructure across emerging economies in the region.
• By application, the municipal segment accounted for a revenue share of 65.8% in 2025, driven by the growing need for safe drinking water and effective sewage treatment in urban areas. Meanwhile, the industrial segment is expected to grow at a considerable CAGR of 5.6% from 2026 to 2033 in terms of revenue, supported by increasing water reuse initiatives and stringent industrial wastewater discharge norms.
• Based on process by equipment, the tertiary treatment segment dominated the market with a revenue share of 44.5% in 2025 and is also expected to grow at a considerable CAGR of 5.6% from 2026 to 2033, due to rising demand for advanced treatment processes that ensure higher water quality and compliance with regulatory standards.

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Market Size & Forecast:

• 2025 Market Size: USD 71.01 Billion
• 2033 Projected Market Size: USD 106.39 Billion
• CAGR (2026-2033): 5.3%
• Asia Pacific: Largest market in 2025

Key Companies & Market Share Insights:

Some of the key players operating in the global water and wastewater treatment equipment market include Xylem Inc., Pentair plc, and Ecolab Inc., among others.

• Xylem, Inc. was established in 2011 and is headquartered in Washington, U.S. The company is a leading global water technology provider engaged in the design, manufacture, and servicing of products primarily catering to the water sector, as well as the electric and gas sectors. Xylem’s water infrastructure business segment focuses on solutions related to water transport and treatment, serving utility and industrial end-use markets. Major products offered under this segment include disinfection and filtration systems, mobile dewatering equipment, biological treatment solutions, and water and wastewater pumps. The company’s key brands in the water infrastructure segment include Flygt, Goodwin, Wedeco, Leopold, and Sanitair.
• Pentair plc operates through three main business segments: Aquatic Systems, Filtration Solutions, and Flow Technologies. The Aquatic Systems segment focuses on the manufacturing of residential and commercial pool equipment and accessories, such as filters, pumps, heaters, lighting systems, automatic cleaners, and automated control solutions. Prominent brands under this segment include Pentair, Sta-Rite, and Kreepy Krauly, which collectively support the company’s strong presence in water-related equipment markets.

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Conclusion:

In conclusion, the global water and wastewater treatment equipment market is poised for steady growth, driven by rising population, rapid urbanization, increasing industrial activities, and stringent environmental regulations. Growing awareness of water pollution and the need for sustainable water management solutions are accelerating the adoption of advanced treatment technologies worldwide. Continuous investments in research and development are enabling improvements in treatment efficiency, operational performance, and cost-effectiveness of equipment. Strategic collaborations between technology providers and end-users are further supporting market expansion and technology adoption. The increasing use of advanced processes such as membrane filtration, ultraviolet disinfection, and tertiary treatment highlights the industry’s shift toward high-performance solutions. Strong demand from municipal applications and accelerating growth in industrial wastewater treatment will continue to shape market dynamics. Overall, the market presents significant opportunities for established players and emerging companies to innovate and strengthen their competitive positioning through 2033.