Company lists · Data refreshed September 2026

Top 25 Water infrastructure companies worldwide

Name: Water infrastructure companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 7,680 companies tracked

RevenueBase identified 7,680 water infrastructure companies worldwide as of September 2026 and tracks 248,342 professional contacts across them, including 72,009 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers water infrastructure companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026. Country and city lists for water infrastructure companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

7,680Companies

248,342Contacts tracked

72,009Verified emails

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The 25 largest water infrastructure companies worldwide

Ranked by team size

Top 25 of 7,680 water infrastructure companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to water infrastructure companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	SUEZ	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	10001+	21,549 contacts →
	Partial evidence “We provide essential services in the water and waste sectors to preserve resources and improve quality of life wherever we operate.” Source: RevenueBase Database · checked Sep 22, 2026
2	Sabesp	Partial evidence	Sao Paulo, BrazilHQ checked Sep 22, 2026	10001+	10,050 contacts →
	Partial evidence “Sabesp is a mixed capital company that was founded in 1973 and is currently responsible for supplying water and collecting and treating sewage in the 375 municipalities of São…” Source: RevenueBase Database · checked Sep 22, 2026
3	Pentair	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	5,001-10,000	6,636 contacts →
	Partial evidence “At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.” Source: RevenueBase Database · checked Sep 22, 2026
4	Thames Water	Partial evidence	Reading, United KingdomHQ checked Sep 22, 2026	1,001-5,000	5,648 contacts →
	Partial evidence “Thames Water is the UK’s biggest water and wastewater services provider, providing 2.7 billion litres of drinking water and safely removing 4.6 billion litres of wastewater every…” Source: RevenueBase Database · checked Sep 22, 2026
5	Severn Trent	Partial evidence	Coventry, United KingdomHQ checked Sep 22, 2026	5,001-10,000	5,563 contacts →
	Partial evidence “Water is wonderful.” Source: RevenueBase Database · checked Sep 22, 2026
6	Water Corporation	Partial evidence	Leederville, AustraliaHQ checked Sep 22, 2026	1,001-5,000	3,828 contacts →
	Partial evidence “We’re the principal supplier of water, wastewater and drainage services in Western Australia to hundreds of thousands of homes, businesses and farms, as well as providing bulk…” Source: RevenueBase Database · checked Sep 22, 2026
7	SAUR	Partial evidence	Issy-les-moulineaux, FranceHQ checked Sep 22, 2026	10001+	3,694 contacts →
	Partial evidence “As a pure player in water and essential services, Saur works to protect the environment in the heart of the territories it serves.” Source: RevenueBase Database · checked Sep 22, 2026
8	BRK Ambiental	Indirect evidence	BrazilHQ checked Sep 22, 2026	5,001-10,000	3,306 contacts →
	Indirect evidence “A BRK é uma das maiores empresas privadas de saneamento do país e está presente em 13 estados e mais de 100 municípios, beneficiando a vida de mais de 16 milhões de pessoas.” Source: RevenueBase Database · checked Sep 22, 2026
9	American Water	Partial evidence	Camden, NJ, United StatesHQ checked Sep 22, 2026	5,001-10,000	2,876 contacts →
	Partial evidence “American Water (NYSE: AWK) is the largest regulated water and wastewater utility company in the United States.” Source: RevenueBase Database · checked Sep 22, 2026
10	SADE	Partial evidence	75685 Paris Cedex 14, FranceHQ checked Sep 22, 2026	5,001-10,000	2,527 contacts →
	Partial evidence “RESEAUX ET INFRASTRUCTURES Entreprise plus que centenaire forte de quelque 7 collaborateurs, la SADE est le spécialiste de la conception, la construction, la réhabilitation et…” Source: RevenueBase Database · checked Sep 22, 2026
11	EPCOR	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 22, 2026	1,001-5,000	2,511 contacts →
	Partial evidence “Clean water, reliable electricity, drainage services and natural gas are at the heart of what we do.” Source: RevenueBase Database · checked Sep 22, 2026
12	Watts Water Technologies	Partial evidence	North Andover, MA, United StatesHQ checked Sep 22, 2026	5,001-10,000	2,503 contacts →
	Partial evidence “We are a global leader of quality water solutions for residential, industrial, municipal, and commercial settings.” Source: RevenueBase Database · checked Sep 22, 2026
13	VA Tech Wabag LTD	Partial evidence	Wabag House, IndiaHQ checked Sep 22, 2026	1,001-5,000	2,375 contacts →
	Partial evidence “WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Source: RevenueBase Database · checked Sep 22, 2026
14	Core & Main	Indirect evidence	St. Louis, MO, United StatesHQ checked Sep 22, 2026	1,001-5,000	2,165 contacts →
	Indirect evidence “Based in St.” Source: RevenueBase Database · checked Sep 22, 2026
15	Copasa	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	10001+	2,034 contacts →
	Indirect evidence “Página Oficial da COPASA -” Source: RevenueBase Database · checked Sep 22, 2026
16	Carollo Engineers	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,718 contacts →
	Partial evidence “For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.” Source: RevenueBase Database · checked Sep 22, 2026
17	Vitens	Indirect evidence	Zwolle, NetherlandsHQ checked Sep 22, 2026	1,001-5,000	1,690 contacts →
	Indirect evidence “Vitens is het grootste drinkwaterbedrijf van Nederland.” Source: RevenueBase Database · checked Sep 22, 2026
18	SEAAL	Indirect evidence	Alger, AlgeriaHQ checked Sep 22, 2026	5,001-10,000	1,543 contacts →
	Indirect evidence “La Société des Eaux et de l’Assainissement d’Alger (SEAAL), est une Société Publique par actions, détenue à 70% par l’Algérienne des Eaux (ADE) et à 30% par l’Office National de…” Source: RevenueBase Database · checked Sep 22, 2026
19	AQUA	Partial evidence	Bryn Mawr, PA, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,478 contacts →
	Partial evidence “Aqua is one of the largest U.S-based, publicly traded water and wastewater utilities, serving more than 3 million people in Illinois, Indiana, New Jersey, North Carolina…” Source: RevenueBase Database · checked Sep 22, 2026
20	Aqualia	Partial evidence	Madrid, SpainHQ checked Sep 22, 2026	5,001-10,000	1,395 contacts →
	Partial evidence “Aqualia es la cuarta empresa de gestión del agua de Europa y la novena del Mundo por población servida, según el último ranking de Global Water Intelligence (diciembre de 2024).” Source: RevenueBase Database · checked Sep 22, 2026
21	Grupo Águas DO Brasil	Indirect evidence	Niterói, BrazilHQ checked Sep 22, 2026	1,001-5,000	1,334 contacts →
	Indirect evidence “Fundado em 1998, o Grupo Águas do Brasil é um dos principais grupos privados de saneamento básico do país, presente em 32 municípios nos estados do Rio de Janeiro, Minas Gerais e…” Source: RevenueBase Database · checked Sep 22, 2026
22	EJ	Partial evidence	East Jordan, MI, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,246 contacts →
	Partial evidence “EJ is the global leader in the design, manufacture, and distribution of access solutions for the world’s growing infrastructure.” Source: RevenueBase Database · checked Sep 22, 2026
23	Companhia DE Água E Esgoto DO Ceará - Cagece	Indirect evidence	Fortaleza, BrazilHQ checked Sep 22, 2026	1,001-5,000	1,202 contacts →
	Indirect evidence “A Companhia de Água e Esgoto do Ceará (Cagece), fundada em 1971, é uma empresa de economia mista com capital aberto que tem por finalidade a prestação dos serviços de…” Source: RevenueBase Database · checked Sep 22, 2026
24	Volvo Eicher Commerical Vehical Limited	Partial evidence	Dhar, IndiaHQ checked Sep 22, 2026	n/a	1,196 contacts →
	Partial evidence “Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.” Source: RevenueBase Database · checked Sep 22, 2026
25	EVN	Indirect evidence	Maria Enzersdorf, AustriaHQ checked Sep 22, 2026	5,001-10,000	1,125 contacts →
	Indirect evidence “Wir sind ein börsennotiertes Energie- und Umweltdienstleistungsunternehmen mit Sitz in Niederösterreich.” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: water infrastructure companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names water infrastructure companies.
Partial evidence: Its own public description names part of water infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water infrastructure companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 7,680 water infrastructure companies worldwide

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Water infrastructure companies worldwide at a glance

As of Sep 22, 2026

29.0%Verified-email coverage

32.3Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · Tehran

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

2,420

11-50

2,809

51-200

1,448

201-500

515

501-1,000

201

1,001-5,000

163

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among water infrastructure companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for water infrastructure companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “water infrastructure companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names water infrastructure companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among water infrastructure companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 72,009 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Water infrastructure companies by location

34 lists · largest first

Every Water infrastructure companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Water infrastructure companies based in Ahmedabad, India36

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names water infrastructure companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many water infrastructure companies are there worldwide?

RevenueBase identified 7,680 water infrastructure companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

SUEZ, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most water infrastructure companies?

The United States leads with 1,330 companies, followed by India (532) and Italy (454). Every water infrastructure companies list by country and city is linked on this page.

Which city has the most water infrastructure companies?

Tehran leads with 58 headquartered companies, followed by Pune (43) and Sao Paulo (40).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 72,009 verified decision-maker contacts tracked across these 7,680 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.