United States Wastewater Treatment Services Market 2025 | Growth Drivers, Key Players & Investment Opportunities

Market Size and Growth

The wastewater treatment services market is growing at a CAGR of 8% during the forecast period (2023-2029).

Key Development:

United States: Recent Industry Developments

✅ In November 2025, Jacobs was awarded a nine‐year contract to operate and maintain three wastewater treatment plants and 99 pump stations for Jackson Water (Mississippi), expanding its role in stabilizing infrastructure in a region with long‐standing system challenges.

✅ In May 2025, Cemtrex Inc. subsidiary AIS secured a contract worth USD 1.84 million to upgrade the South Train primary clarifier units at the City of Lancaster's Advanced Wastewater Treatment Plant, covering mechanical, electrical, and control‐system modernization.

✅ In April 2025, Tetra Tech, Inc. announced it had been awarded a contract by Orange County Utilities (Florida) to provide engineering design and technical services for expanding the Eastern Water Reclamation Facility, enhancing capacity, energy efficiency, and resilience of wastewater infrastructure.

✅ In March 2025, Jacobs secured multiple new operations and maintenance water & wastewater service contracts and renewals across the western U.S., including California and Oregon, strengthening its O&M footprint in municipal wastewater services.

Japan: Recent Industry Developments

✅ In July 2025, WOTA Corporation launched the "Water 2040 Fund - Decentralized Water Circulation System Implementation Fund," to support local governments in deploying decentralized water & wastewater systems covering planning, finance, and operations to address aging pipeline infrastructure and shrinking populations.

✅ In March 2025, Toshiba Infrastructure Systems & Solutions Corporation announced its sewage pretreatment technology with a rotating‐fiber unit (for oxidation ditch method) was selected as "New Technology Category I" by the Japan Sewage Works Agency, enabling wider deployment in municipal wastewater treatment projects for higher capacity and lower power consumption.

✅ In March 2025, a government‐led digital transformation push in Japan directed adoption of AI, drones, and satellite technologies for sewer inspection and wastewater system management, aiming for completion within three years to address aging infrastructure and improve leak detection.

✅ In February 2025, Japan's national panel announced acceleration of digital transformation in water supply and sewage systems, including wastewater treatment services, with target deployments to reduce infrastructure risk following a sink‐hole incident that highlighted vulnerabilities in sewer networks.

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Recent Mergers and Acquisitions

United States: Recent M&A Activity in Wastewater Treatment Services

✅ In August 2025, Grundfos completed the acquisition of U.S.-based wastewater‐treatment solutions company Newterra, enhancing its modular water and wastewater systems portfolio in North America.

✅ In July 2025, American Water Works Company announced agreements via its subsidiary to acquire the Indian Creek Valley Water Authority and the Sutersville‐Sewickley Municipal Sewage Authority systems, expanding its wastewater connection base and infrastructure footprint.

✅ In April 2025, Valicor Environmental Services acquired Affordable Waste Management, Inc. (Louisville, Kentucky region), broadening its centralized non‐hazardous wastewater treatment and leachate processing capacities across the U.S. Midwest.

✅ In March 2025, the Industrial & Environmental Services segment reported that the water & wastewater treatment space recorded 34 deals year‐to‐date (up from 24 in the prior year), signaling heightened acquisitive interest in this services niche.

Japan: Recent M&A Activity in Wastewater Treatment Services

✅ In June 2025, Brown & Caldwell via its Japanese affiliate acquired membrane‐technology consulting firm SPI, aimed at strengthening advanced wastewater treatment service offerings in Japan's industrial segment.

✅ In April 2025, Japanese firms focused on environmental services reported increased investment activity in wastewater treatment platforms, driven by national infrastructure renewal and water‐reuse mandates.

✅ In March 2025, global analysis sources noted that the water‐treatment sector including wastewater services in Japan continued to experience robust cross‐border M&A, supported by regulatory and sustainability‐driven imperatives.

✅ In January 2025, broader sector M&A data for environmental solutions highlighted that smaller Japanese wastewater services players were increasingly targets for consolidation by larger regional platforms and infrastructure funds.

Key Players:

=> Veolia Group, Xylem Inc., Suez S.A., Ecolab Inc., Thermax Limited, Evoqua Water Technologies, Pentair, and Wog Technologies, Golder Associates, and Terrapure Environmental.

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Key Segments:

> By Service Type
Designing & engineering consult services provide planning, process optimization, and system design expertise for industrial projects. Building & installation services cover the physical setup of equipment, pipelines, and facilities. Operation & process control maintenance services ensure smooth functioning, efficiency, and reliability, while other services cater to specialized needs.

> By End-User
Municipal end-users rely on these services for water, wastewater, and public utility projects. Industrial end-users include manufacturing plants, refineries, and large-scale production facilities requiring tailored solutions for process efficiency and safety.

> By Industry
Chemical & pharmaceutical, food, pulp & paper, oil & gas, and metal & mining industries are primary adopters, benefiting from process optimization and maintenance services. Power generation and other sectors also use these services for operational efficiency and regulatory compliance.

By Region

North America leads with advanced infrastructure, large industrial bases, and strong regulatory frameworks.

Europe focuses on sustainability, automation, and efficiency across industries.

Latin America shows moderate growth, driven by industrial and municipal projects.

Middle East & Africa are emerging markets, with increasing adoption in oil & gas, power generation, and chemical industries.

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