Company lists · Data refreshed September 2026

Top 25 Water supply system companies worldwide

RevenueBase identified 5,873 company matches for water supply system companies worldwide as of September 2026 and tracks 154,841 professional contacts across them, including 49,982 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for water supply system companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 22, 2026. Country and city lists for water supply system companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 22, 2026 How this list was built
5,873Companies
154,841Contacts tracked
49,982Verified emails
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The 25 largest water supply system companies worldwide

Ranked by team size
Top 25 of 5,873 company matches for water supply system companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchParis, FranceHQ recorded Sep 22, 202610001+21,549 contacts →

Exact match

“We provide essential services in the water and waste sectors to preserve resources and improve quality of life wherever we operate.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchReading, United KingdomHQ recorded Sep 22, 20261,001-5,0005,648 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchCoventry, United KingdomHQ recorded Sep 22, 20265,001-10,0005,563 contacts →

Exact match

“Water is wonderful.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchIssy-les-moulineaux, FranceHQ recorded Sep 22, 202610001+3,694 contacts →

Exact match

“As a pure player in water and essential services, Saur works to protect the environment in the heart of the territories it serves.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchBrazilHQ recorded Sep 22, 20265,001-10,0003,306 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact match75685 Paris Cedex 14, FranceHQ recorded Sep 22, 20265,001-10,0002,527 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchWabag House, IndiaHQ recorded Sep 22, 20261,001-5,0002,375 contacts →

Exact match

“WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchSt. Louis, MO, United StatesHQ recorded Sep 22, 20261,001-5,0002,165 contacts →

Exact match

“Based in St.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchBelo Horizonte, BrazilHQ recorded Sep 22, 202610001+2,034 contacts →

Exact match

“Página Oficial da COPASA -”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchCardiff, United KingdomHQ recorded Sep 22, 20261,001-5,0001,868 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchDublin, IrelandHQ recorded Sep 22, 20261,001-5,0001,763 contacts →

Exact match

“We are Uisce Éireann.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchWalnut Creek, CA, United StatesHQ recorded Sep 22, 20261,001-5,0001,718 contacts →

Exact match

“For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchZwolle, NetherlandsHQ recorded Sep 22, 20261,001-5,0001,690 contacts →

Exact match

“Vitens is het grootste drinkwaterbedrijf van Nederland.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Sep 22, 20265,001-10,0001,395 contacts →

Exact match

“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).”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchStevenage, United KingdomHQ recorded Sep 22, 20261,001-5,0001,153 contacts →

Exact match

“With a significant national workforce operating daily in local communities, we support our clients to keep their assets resilient ensuring customer taps flow, and all wastewater…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchFortitude Valley, AustraliaHQ recorded Sep 22, 20261,001-5,0001,064 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchNorth Kansas City, MO, United StatesHQ recorded Sep 22, 20261,001-5,0001,009 contacts →

Exact match

“Garney Construction is a national leader in water and wastewater construction.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchHorsham, PA, United StatesHQ recorded Sep 22, 20261,001-5,000973 contacts →

Exact match

“As an Azuria owned company, Inframark is a widely recognized leader in Water Infrastructure Operations and Infrastructure Management Services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchStockport, United KingdomHQ recorded Sep 22, 20261,001-5,000879 contacts →

Exact match

“MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchMontreal, QC, CanadaHQ recorded Sep 22, 2026501-1,000829 contacts →

Exact match

“Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchRotterdam, NetherlandsHQ recorded Sep 22, 2026501-1,000753 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchBrussel, BelgiumHQ recorded Sep 22, 20261,001-5,000728 contacts →

Exact match

“De Watergroep is het grootste drinkwaterbedrijf in Vlaanderen.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchKilcolgan, IrelandHQ recorded Sep 22, 20261,001-5,000632 contacts →

Exact match

“Since its establishment, Ward & Burke has sought to develop and adopt the ideals and aspirations to civil engineering construction and currently delivers class leading, reliable…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchMandaluyong, PhilippinesHQ recorded Sep 22, 2026201-500615 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchDoetinchem, NetherlandsHQ recorded Sep 22, 20261,001-5,000609 contacts →

Exact match

“Founded in 1904, Nijhuis Saur Industries provides solid and adaptive solutions for sustainable and resilient water use, energy- and resource recovery.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 5,873 water supply system companies worldwide

See the full list, filter by size, metro and specialty, and access 49,982 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water supply system companies worldwide at a glance

As of Sep 22, 2026
32.3%Verified-email coverage
26.4Average contacts per company
11-50Median size (employees)
0.9%Largest-city concentration · Tehran
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
2,108
11-50
2,231
51-200
930
201-500
323
501-1,000
125
1,001-5,000
83
5,001-10,000
19
10001+
9

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for water supply system companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “water supply system companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 49,982 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Water supply system companies by location

29 lists · largest first

Every Water supply system companies 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “water supply system companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water supply system companies are there worldwide?

RevenueBase identified 5,873 company matches for water supply system companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

SUEZ tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most water supply system companies?

The United States leads with 903 companies, followed by India (426) and Italy (321). Every water supply system companies list by country and city is linked on this page.

Which city has the most water supply system companies?

Tehran leads with 55 company records, followed by Bogota (40) and Pune (35).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 49,982 professional contacts with verified work emails tracked across these 5,873 companies; direct dials are available where recorded.

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 SmartSearch, 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.