Wastewater Treatment Equipment Market Report 2026

The wastewater treatment equipment market size has grown steadily in recent years. It will grow from $34.69 billion in 2025 to $36.42 billion in 2026 at a compound annual growth rate (CAGR) of 5%. The growth in the historic period can be attributed to urban population growth, expansion of municipal sewage systems, industrial water pollution control, environmental compliance needs, infrastructure modernization.

The wastewater treatment equipment market size is expected to see strong growth in the next few years. It will grow to $44.59 billion in 2030 at a compound annual growth rate (CAGR) of 5.2%. The growth in the forecast period can be attributed to water scarcity concerns, stricter discharge regulations, growth in industrial manufacturing, investment in smart water infrastructure, expansion of zero liquid discharge systems. Major trends in the forecast period include rising adoption of advanced membrane technologies, growth in industrial wastewater treatment solutions, expansion of tertiary treatment processes, increasing focus on water reuse and recycling, integration of smart monitoring systems.

The increasing scarcity of water is expected to support the growth of the wastewater treatment equipment market. Water scarcity - driven by population growth, climate change, and rising demand from agriculture and industry - threatens the availability of clean and reliable water supplies. This intensifies the need for efficient wastewater treatment technologies that enable water reuse, conservation, and sustainable resource management. For example, in June 2025, GOV.UK, a UK-based government organization, reported that England could face a daily shortfall of 5 billion liters in public water supply by 2055 unless urgent steps are taken to secure and strengthen water resources. Therefore, rising water scarcity is driving demand for advanced wastewater treatment equipment.

Major companies in the wastewater treatment equipment market are focusing on developing advanced multi-stage filtration systems designed to enhance contaminant removal, improve efficiency, and meet the specialized needs of industrial users. For instance, in May 2024, Everfilt, a US-based water treatment company, introduced the X-Series, a three-stage water filtration system engineered for breweries and distilleries. The system starts with a multi-media vessel that filters particles down to 5 microns, followed by a second stage using Greensand Plus™ or DMI-65® to treat iron, manganese, and arsenic. The final GAC stage removes chlorine to improve taste and odor. Designed for high performance and durability, the X-Series includes an independent backwash system, isolation valves, and customizable configurations. Its construction - featuring 304SS underdrains and NSF61-approved coatings - ensures long-lasting operation in space-constrained, process-sensitive industrial environments.

In September 2024, Grundfos, a Denmark-based pump manufacturing company, acquired the Commercial and Industrial (C&I) business of Culligan International for an undisclosed amount. This acquisition strengthens Grundfos’s industrial water treatment capabilities in Europe, broadens its solutions portfolio, and supports its mission to promote efficient water use and improved water quality across diverse sectors. Culligan International is a US-based company specializing in commercial and industrial water purification solutions.

Major companies operating in the wastewater treatment equipment market are Suez SA, General Electric Company, Culligan International Company, Dow Water & Process Solutions, Pentair plc, Aquatech International LLC, Danaher Corporation, Calgon Carbon Corporation, Toray Industries Inc., Thermax Limited, Degrémont SA, Hitachi Ltd., Siemens AG, Evoqua Water Technologies Corp., BWT AG, Veolia Environnement SA, Xylem Inc., Doosan Heavy Industries & Construction Co. Ltd., Kurita Water Industries Ltd., Ion Exchange (India) Ltd., Pall Corporation, Ecolab Inc., Ovivo Inc., 3M Company, Chembond Chemicals Limited, Accepta Ltd., Ashland Global Holdings Inc., Kemira Oyj.

Asia-Pacific was the largest region in the wastewater treatment equipment market in 2025. Western Europe was the second largest region in the wastewater treatment equipment market. The regions covered in the wastewater treatment equipment market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the wastewater treatment equipment market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The wastewater treatment equipment market consists of sales of trickling filter, clarifier, aerated lagoon, and activated sludge. Values in this market are factory gate values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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