Company lists · Data refreshed September 2026

Top 25 Water companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 11,917 companies tracked

RevenueBase identified 11,917 water companies worldwide as of September 2026 and tracks 448,697 professional contacts across them, including 129,721 with verified work emails and 0 with mobile numbers. The United States is the largest market and Pune the largest hub.

This list covers water 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 19, 2026. Country and city lists for water 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 19, 2026 86% judged on-target in blind review

11,917Companies

448,697Contacts tracked

129,721Verified emails

0Mobile numbers

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The 25 largest water companies worldwide

Ranked by team size

Top 25 of 11,917 water companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water 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	Strong evidence	Paris, FranceHQ checked Sep 19, 2026	10001+	21,549 contacts →
	Strong 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 19, 2026
2	Sabesp	Strong evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	10001+	10,050 contacts →
	Strong 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 19, 2026
3	Pentair	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	5,001-10,000	6,636 contacts →
	Strong evidence “At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.” Source: RevenueBase Database · checked Sep 19, 2026
4	Thames Water	Strong evidence	Reading, United KingdomHQ checked Sep 19, 2026	1,001-5,000	5,648 contacts →
	Strong 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 19, 2026
5	Severn Trent	Strong evidence	Coventry, United KingdomHQ checked Sep 19, 2026	5,001-10,000	5,563 contacts →
	Strong evidence “Water is wonderful.” Source: RevenueBase Database · checked Sep 19, 2026
6	NWC	Strong evidence	Riyadh, Saudi ArabiaHQ checked Sep 19, 2026	10001+	5,242 contacts →
	Strong evidence “The National Water Company (a Saudi joint stock company, wholly owned by the state represented by the Public Investment Fund) was established in 2008, providing water and…” Source: RevenueBase Database · checked Sep 19, 2026
7	Water Corporation	Strong evidence	Leederville, AustraliaHQ checked Sep 19, 2026	1,001-5,000	3,828 contacts →
	Strong 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 19, 2026
8	ION Exchange India LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 19, 2026	1,001-5,000	3,810 contacts →
	Strong evidence “At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Source: RevenueBase Database · checked Sep 19, 2026
9	SAUR	Strong evidence	Issy-les-moulineaux, FranceHQ checked Sep 19, 2026	10001+	3,694 contacts →
	Strong 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 19, 2026
10	Sydney Water	Strong evidence	Parramatta, AustraliaHQ checked Sep 19, 2026	1,001-5,000	3,609 contacts →
	Strong evidence “We deliver essential and sustainable water services for the benefit of the community.” Source: RevenueBase Database · checked Sep 19, 2026
11	Coxabengoa	Strong evidence	Seville, SpainHQ checked Sep 19, 2026	10001+	3,545 contacts →
	Strong evidence “Coxabengoa is a vertically integrated global utility in water and energy at the forefront of solving the greatest global challenges of the green transition by applying…” Source: RevenueBase Database · checked Sep 19, 2026
12	Anglian Water Services	Strong evidence	Huntingdon, United KingdomHQ checked Sep 19, 2026	5,001-10,000	3,430 contacts →
	Strong evidence “Anglian Water supply water and water recycling services to more than six million domestic and business customers in the east of England and Hartlepool.” Source: RevenueBase Database · checked Sep 19, 2026
13	Gruppo Hera	Indirect evidence	Bologna, ItalyHQ checked Sep 19, 2026	5,001-10,000	2,944 contacts →
	Indirect evidence “The Hera Group is the first Italian coalescence of municipally owned companies that (adopting a multi-business approach oriented to the creation of shared value for all…” Source: RevenueBase Database · checked Sep 19, 2026
14	American Water	Strong evidence	Camden, NJ, United StatesHQ checked Sep 19, 2026	5,001-10,000	2,876 contacts →
	Strong evidence “American Water (NYSE: AWK) is the largest regulated water and wastewater utility company in the United States.” Source: RevenueBase Database · checked Sep 19, 2026
15	Corsan	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 19, 2026	1,001-5,000	2,788 contacts →
	Indirect evidence “Atendendo a mais de 6,5 milhões de clientes, a Corsan é responsável pelo saneamento básico em 317 cidades do Rio Grande do Sul.” Source: RevenueBase Database · checked Sep 19, 2026
16	Scottish Water	Strong evidence	Stepps, United KingdomHQ checked Sep 19, 2026	1,001-5,000	2,776 contacts →
	Strong evidence “Water is essential to life and to the communities in which we live and work across every corner of Scotland.” Source: RevenueBase Database · checked Sep 19, 2026
17	Yorkshire Water	Strong evidence	Bradford, United KingdomHQ checked Sep 19, 2026	1,001-5,000	2,715 contacts →
	Strong evidence “We’re Yorkshire Water.” Source: RevenueBase Database · checked Sep 19, 2026
18	EPCOR	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 19, 2026	1,001-5,000	2,511 contacts →
	Strong evidence “Clean water, reliable electricity, drainage services and natural gas are at the heart of what we do.” Source: RevenueBase Database · checked Sep 19, 2026
19	Watts Water Technologies	Strong evidence	North Andover, MA, United StatesHQ checked Sep 19, 2026	5,001-10,000	2,503 contacts →
	Strong evidence “We are a global leader of quality water solutions for residential, industrial, municipal, and commercial settings.” Source: RevenueBase Database · checked Sep 19, 2026
20	Águas DO RIO	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	5,001-10,000	2,477 contacts →
	Indirect evidence “Somos a concessionária responsável pela água e esgoto em 27 municípios do estado do Rio, incluído as zonas Sul, Norte e Centro da Capital.” Source: RevenueBase Database · checked Sep 19, 2026
21	Veolia Australia & NEW Zealand	Strong evidence	Pyrmont, AustraliaHQ checked Sep 19, 2026	5,001-10,000	2,476 contacts →
	Strong evidence “Veolia Australia and New Zealand is a leading provider of environmental solutions across water and wastewater services, industrial cleaning, waste management and resource recovery…” Source: RevenueBase Database · checked Sep 19, 2026
22	Primo Brands	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 19, 2026	10001+	2,472 contacts →
	Indirect evidence “Primo Brands™ is a leading North American branded beverage company with a focus on healthy hydration, delivering sustainably and domestically sourced diversified offerings across…” Source: RevenueBase Database · checked Sep 19, 2026
23	VA Tech Wabag LTD	Strong evidence	Wabag House, IndiaHQ checked Sep 19, 2026	1,001-5,000	2,375 contacts →
	Strong evidence “WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Source: RevenueBase Database · checked Sep 19, 2026
24	NCH	Strong evidence	Wilmington, DE, United StatesHQ checked Sep 19, 2026	10001+	2,361 contacts →
	Strong evidence “Cleaning water, conserving energy and delivering maintenance solutions since 1919.” Source: RevenueBase Database · checked Sep 19, 2026
25	Southern Water	Strong evidence	Worthing, United KingdomHQ checked Sep 19, 2026	1,001-5,000	2,308 contacts →
	Strong evidence “We are one of the largest water and wastewater companies in the South East of England and thrive on the passion and hard work of more than employees.” Source: RevenueBase Database · checked Sep 19, 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 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 companies.
Partial evidence: Its own public description names part of water companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water 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 11,917 water companies worldwide

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Water companies worldwide at a glance

As of Sep 19, 2026

28.9%Verified-email coverage

37.7Average contacts per company

11-50Median size (employees)

0.9%Largest-city concentration · Pune

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

4,593

11-50

3,951

51-200

2,004

201-500

682

501-1,000

255

1,001-5,000

224

5,001-10,000

10001+

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 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: 43 countries, largest first: the United States, India, Brazil, the United Kingdom, Germany, Italy, Spain, France, Canada, Australia and 33 more. Country and city lists for water companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “water 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 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 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, 129,721 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 19, 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 companies by location

47 lists · largest first

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

Countries

Cities

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 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 companies are there worldwide?

RevenueBase identified 11,917 water 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 companies?

The United States leads with 3,051 companies, followed by India (1,250) and Brazil (816). Every water companies list by country and city is linked on this page.

Which city has the most water companies?

Pune leads with 109 headquartered companies, followed by Sao Paulo (90) and Ahmedabad (87).

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 129,721 verified decision-maker contacts tracked across these 11,917 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 19, 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.