Company lists · Data refreshed September 2026

Top 25 Drinking water suppliers worldwide

RevenueBase identified 2,176 drinking water suppliers worldwide as of September 2026 and tracks 76,588 professional contacts across them, including 26,467 with verified work emails. The United States is the largest market and Dubai the largest hub.

This list covers drinking water suppliers 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 drinking water suppliers 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
2,176Companies
76,588Contacts tracked
26,467Verified emails
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The 25 largest drinking water suppliers worldwide

Ranked by team size
Top 25 of 2,176 drinking water suppliers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to drinking water suppliers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceReading, United KingdomHQ checked Sep 19, 20261,001-5,0005,648 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
2Partial evidenceCoventry, United KingdomHQ checked Sep 19, 20265,001-10,0005,563 contacts →

Partial evidence

Water is wonderful.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceParramatta, AustraliaHQ checked Sep 19, 20261,001-5,0003,609 contacts →

Partial evidence

“We deliver essential and sustainable water services for the benefit of the community.”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceHuntingdon, United KingdomHQ checked Sep 19, 20265,001-10,0003,430 contacts →

Partial 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
5Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 19, 202610001+2,034 contacts →

Indirect evidence

“Página Oficial da COPASA -”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceCardiff, United KingdomHQ checked Sep 19, 20261,001-5,0001,868 contacts →

Indirect evidence

“Bath-times, half-times, party-times, meeting-times, and cooking-times.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceRosemont, IL, United StatesHQ checked Sep 19, 202610001+1,830 contacts →

Partial evidence

“There’s nothing more fundamental to life on Earth than water.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceDublin, IrelandHQ checked Sep 19, 20261,001-5,0001,763 contacts →

Indirect evidence

“We are Uisce Éireann.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceZwolle, NetherlandsHQ checked Sep 19, 20261,001-5,0001,690 contacts →

Indirect evidence

“Vitens is het grootste drinkwaterbedrijf van Nederland.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceAlger, AlgeriaHQ checked Sep 19, 20265,001-10,0001,543 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 19, 2026
11Partial evidenceExeter, United KingdomHQ checked Sep 19, 20261,001-5,0001,124 contacts →

Partial evidence

“South West Water is part of Pennon Group plc.”

Source: RevenueBase Database · checked Sep 19, 2026
12Strong evidenceFortitude Valley, AustraliaHQ checked Sep 19, 20261,001-5,0001,064 contacts →

Strong evidence

“We’re responsible for delivering world-class drinking water and wastewater services to the growing communities of Brisbane, Ipswich, Lockyer Valley, Somerset and Scenic Rim.”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceHatfield, United KingdomHQ checked Sep 19, 20261,001-5,000928 contacts →

Partial evidence

“Our vision is to be the leading community-focused water company.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceJakarta Pusat, IndonesiaHQ checked Sep 19, 20261,001-5,000875 contacts →

Indirect evidence

“Visi : Terwujudnya PAM JAYA sebagai Perusahaan yang memberikan pelayanan air minum kepada masyarakat DKI Jakarta secara menyeluruh dan berkualitas yang berorientasi pada kepuasan…”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidence's-hertogenbosch, NetherlandsHQ checked Sep 19, 20261,001-5,000773 contacts →

Partial evidence

“In Noord-Brabant vertrouwen 2,4 miljoen inwoners en bedrijven op het drinkwater van Brabant Water.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceRotterdam, NetherlandsHQ checked Sep 19, 2026501-1,000753 contacts →

Indirect evidence

“Duurzaam, innovatief en in verbinding met de omgeving; zo werkt Evides Waterbedrijf.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceBrussel, BelgiumHQ checked Sep 19, 20261,001-5,000728 contacts →

Indirect evidence

“De Watergroep is het grootste drinkwaterbedrijf in Vlaanderen.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceUnited StatesHQ checked Sep 19, 20261,001-5,000664 contacts →

Partial evidence

“California Water Service (Cal Water) is the largest regulated American water utility west of the Mississippi River and the third-largest in the country.”

Source: RevenueBase Database · checked Sep 19, 2026
19Strong evidenceSnodland, United KingdomHQ checked Sep 19, 2026501-1,000636 contacts →

Strong evidence

“We supply top quality drinking water to 2.2 million customers in the south east of England.”

Source: RevenueBase Database · checked Sep 19, 2026
20Partial evidenceMandaluyong, PhilippinesHQ checked Sep 19, 2026201-500615 contacts →

Partial evidence

“With over 30 years of industry experience, PrimeWater has provided total professional water and sewage management solutions to all of its partner communities and Water Districts…”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceCote d'IvoireHQ checked Sep 19, 2026n/a613 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceVersailles, FranceHQ checked Sep 19, 20261,001-5,000607 contacts →

Indirect evidence

“Spécialiste du traitement de l’eau depuis plus de 80 ans, Culligan apporte chaque jour une eau de qualité aux particuliers, aux entreprises et aux collectivités.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceBelfast, United KingdomHQ checked Sep 19, 20261,001-5,000596 contacts →

Partial evidence

“Northern Ireland Water is a Government Owned Company (GoCo), set up in April 2007 to provide the water and sewerage services in Northern Ireland.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceParis, FranceHQ checked Sep 19, 2026501-1,000590 contacts →

Indirect evidence

“Première entreprise publique d’eau en France, Eau de Paris délivre chaque jour une eau d’excellente qualité, au prix le plus juste à ses 3 millions d’usagers.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceRiverside, MO, United StatesHQ checked Sep 19, 20261,001-5,000563 contacts →

Partial evidence

“Premium Waters, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 2,176 drinking water suppliers worldwide

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Drinking water suppliers worldwide at a glance

As of Sep 19, 2026
34.6%Verified-email coverage
35.2Average contacts per company
11-50Median size (employees)
0.7%Largest-city concentration · Dubai
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
979
11-50
643
51-200
283
201-500
124
501-1,000
51
1,001-5,000
50
5,001-10,000
10
10001+
8

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 drinking water suppliers, 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 drinking water suppliers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “drinking water suppliers”. 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 drinking water suppliers), 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 drinking water suppliers, 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, 26,467 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.

Drinking water suppliers by location

7 lists · largest first

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

Countries

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 drinking water suppliers, 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 drinking water suppliers are there worldwide?

RevenueBase identified 2,176 drinking water suppliers 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?

Thames Water, headquartered in Reading, tops this list with the largest team on record.

Which country has the most drinking water suppliers?

The United States leads with 634 companies, followed by the United Kingdom (99) and Germany (94). Every drinking water suppliers list by country and city is linked on this page.

Which city has the most drinking water suppliers?

Dubai leads with 15 headquartered companies, followed by Sao Paulo (13) and Karachi (9).

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 26,467 verified decision-maker contacts tracked across these 2,176 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.