Top Water & Wastewater Utilities companies
Water & Wastewater Utilities is a critical sub-sector within the broader energy, utilities, and environment industry that encompasses the management, treatment, distribution, and collection of water resources necessary for public health, environmental sustainability, and economic development. This industry focuses on the provision of safe drinking water through supply and distribution networks, as well as ongoing efforts to monitor and improve water quality to meet regulatory standards. It also includes the operations involved in reducing non-revenue water, such as leak detection and loss minimization, to optimize resource efficiency. Asset management and capital investment in infrastructure such as pipes, treatment plants, and pumping stations are essential components to ensure system reliability and resilience. The sector emphasizes advanced water treatment processes, including potable water treatment and desalination, to address diverse water source challenges. Stormwater and floodwater management activities are crucial for urban resilience, mitigating risks associated with heavy rainfall and flooding. Further, the industry covers water reuse and recycling initiatives that help conserve freshwater resources and promote sustainability, alongside biosolids and residuals management strategies to handle sludge and waste by-products responsibly. Wastewater collection and treatment form a backbone of the industry, ensuring that wastewater is safely conveyed, treated, and either reused or returned to the environment with minimal impact. Overall, Water & Wastewater Utilities play a vital role in delivering clean, reliable water services, safeguarding ecosystems, and supporting sustainable water resource management across urban and rural communities.
10 companiesAmerican Wateramwater.comUnited States
XylemXylem is a global water technology company providing pumps, treatment systems, smart metering, and digital monitoring (Xylem Vue) to municipal utilities, industrial customers, and commercial buildings across 150+ countries, with $9.0B in FY2025 revenue.xylem.comUnited States
VINCIVINCI is a French-listed global infrastructure group operating toll motorways, airports, construction, and energy services across 120+ countries, serving primarily government clients through long-term concessions, PPPs, and design-build contracts.vinci.comFrance
Veolia Environmental SolutionsVeolia Environnement SA is a Paris-headquartered global environmental services company (FY2025 revenue €44.4bn) providing integrated water, waste, and energy management solutions to municipal, industrial, and hyperscale technology clients across 35+ countries through long-term concessions, managed services contracts, and proprietary treatment technologies.veolia.comFrance
Core & MainCore & Main is a specialty distributor of water, wastewater, storm drainage, and fire protection products, serving municipalities, private water companies, and professional contractors through more than 370 branches across the United States and Canada.coreandmain.comUnited States
GradiantGradiant is a global industrial water treatment provider, founded in 2013 as an MIT spinout, that designs, builds, and operates proprietary desalination, wastewater, lithium extraction, PFAS destruction, and AI-optimized water systems for heavy-industry customers across semiconductors, mining, pharmaceuticals, food and beverage, energy, and data centers in 92 countries.gradiant.comUnited States
United UtilitiesUnited Utilities is a regulated monopoly water and wastewater utility serving approximately 7 million residents and 200,000 businesses across North West England, publicly listed on the London Stock Exchange and executing a £13 billion AMP8 infrastructure investment programme through 2030.unitedutilities.comUnited Kingdom
Culligan InternationalCulligan International is a private, 90+ year old water treatment company that designs, sells, and services water softening, filtration, reverse osmosis, and PFAS reduction systems for residential, commercial, and industrial customers through 900+ independent dealers and the Quench workplace brand.culligan.comUnited States
Illinois American WaterIllinois American Water is a regulated water and wastewater utility subsidiary of American Water (NYSE: AWK), serving approximately 1.3 million Illinois residents through treatment plants, distribution mains, and the MyWater customer portal, including military installations such as Scott Air Force Base.amwater.comUnited States
SabespSabesp is a privatized Brazilian regulated monopoly utility providing water supply and sewage collection/treatment to 30.3 million people across 376 municipalities in São Paulo state under a 50-year concession contract, executing a R$70 billion 2024-2029 universalization program backed by R$36 billion in post-privatization capital.ri.sabesp.com.brBrazil