Company lists · Data refreshed September 2026

Top 25 Rural water supply companies worldwide

RevenueBase identified 470 rural water supply companies worldwide as of September 2026 and tracks 23,146 professional contacts across them, including 7,902 with verified work emails. The United States is the largest market and Manaus the largest hub.

This list covers rural water supply 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 21, 2026. Country and city lists for rural water supply 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 21, 2026 86% judged on-target in blind review
470Companies
23,146Contacts tracked
7,902Verified emails
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The 25 largest rural water supply companies worldwide

Ranked by team size
Top 25 of 470 rural water supply companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to rural water supply 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceParramatta, AustraliaHQ checked Sep 21, 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 21, 2026
2Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 21, 202610001+2,034 contacts →

Indirect evidence

“Página Oficial da COPASA -”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceZwolle, NetherlandsHQ checked Sep 21, 20261,001-5,0001,690 contacts →

Indirect evidence

“Vitens is het grootste drinkwaterbedrijf van Nederland.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceHatfield, United KingdomHQ checked Sep 21, 20261,001-5,000928 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceCosta RicaHQ checked Sep 21, 2026n/a910 contacts →

Indirect evidence

“Entidad autonoma dedicada a proveer nacionalmente servicios de agua potable y alcantarillado sanitario.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceConcepcion, ChileHQ checked Sep 21, 20261,001-5,000900 contacts →

Indirect evidence

“Essbio es la segunda empresa sanitaria más importante de Chile.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceFortitude Valley, AustraliaHQ checked Sep 21, 2026501-1,000649 contacts →

Partial evidence

“Sunwater is a water solutions and service provider delivering the most essential of resources in regional communities.”

Source: RevenueBase Database · checked Sep 21, 2026
8Strong evidenceAthens, GreeceHQ checked Sep 21, 20261,001-5,000546 contacts →

Strong evidence

“Athens Water Supply & Sewerage Company S.A.(EYDAP) is the largest Greek company in the water supply, sewerage and waste water treatment sector.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceSão Paulo, BrazilHQ checked Sep 21, 20261,001-5,000486 contacts →

Indirect evidence

“Fazer o melhor sempre: o atendimento e a superação das expectativas dos clientes e da sociedade para garantir a perenidade dos serviços prestados.* Gerar valor para clientes e…”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceHamburg, GermanyHQ checked Sep 21, 20261,001-5,000457 contacts →

Indirect evidence

“Wasser ist Leben – und wir sorgen täglich dafür, dass zuverlässig reines Trinkwasser durch die Wasserhähne fließt und Abwasser nachhaltig entsorgt wird.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceBrazilHQ checked Sep 21, 2026n/a404 contacts →

Indirect evidence

“Sociedade de Abastecimento de Água e Saneamento SA.”

Source: RevenueBase Database · checked Sep 21, 2026
12Strong evidenceTatura, AustraliaHQ checked Sep 21, 2026501-1,000330 contacts →

Strong evidence

“Australia’s largest rural water corporation, managing a region of square kilometres.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceGroningen, NetherlandsHQ checked Sep 21, 2026201-500267 contacts →

Indirect evidence

“Schoon drinkwater leveren aan alle Groningers.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceTraralgon, AustraliaHQ checked Sep 21, 2026201-500265 contacts →

Partial evidence

“We provide water and sewerage services to around people in Gippsland.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceGouda, NetherlandsHQ checked Sep 21, 2026201-500260 contacts →

Indirect evidence

“Oasen is een maatschappelijk drinkwaterbedrijf.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceBendigo, AustraliaHQ checked Sep 21, 202651-200247 contacts →

Partial evidence

“Coliban Water was established on July 1, 1992 under the Water Act 1989 as a Regional Urban Water Authority.”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceMechanicsburg, PA, United StatesHQ checked Sep 21, 20261,001-5,000218 contacts →

Partial evidence

“Pennsylvania American Water, a subsidiary of American Water (NYSE: AWK), is the largest investor-owned water utility in the state, providing high-quality and reliable water and/or…”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceUnited StatesHQ checked Sep 21, 202651-200211 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceSanta Fe, ArgentinaHQ checked Sep 21, 20261,001-5,000195 contacts →

Indirect evidence

“Aguas Santafesinas es una empresa estatal que se constituyó como sociedad anónima el 8 de febrero de 2006 con el objetivo de proveer agua potable y desagües cloacales en quince…”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceManaus, BrazilHQ checked Sep 21, 2026201-500177 contacts →

Indirect evidence

“A Manaus Ambiental é Águas de Manaus uma empresa da Aegea, a maior companhia brasileira de saneamento do setor privado.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceSouth AfricaHQ checked Sep 21, 2026201-500162 contacts →

Partial evidence

“Magalies Water is a state owned Water Board providing a wide range of related Water and Sanitation Services.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceGreenville, SC, United StatesHQ checked Sep 21, 2026201-500143 contacts →

Partial evidence

“Greenville Water is the largest water utility in South Carolina, delivering clean, reliable drinking water to more than residents across Greenville and parts of Anderson, Pickens…”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidenceHorsham, AustraliaHQ checked Sep 21, 202651-200122 contacts →

Partial evidence

“Grampians Wimmera Mallee Water (GWMWater) is an innovative and exciting employer that is committed to contributing to the sustainable growth of communities within our region.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceTalca, ChileHQ checked Sep 21, 20261,001-5,000122 contacts →

Indirect evidence

“NuevoSur es la cuarta empresa sanitaria más importante de Chile.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceRennes, FranceHQ checked Sep 21, 202651-200116 contacts →

Indirect evidence

“La Ville de Rennes et la Collectivité Eau du Bassin Rennais (ancien Syndicat Mixte de Production des Eaux du Bassin Rennais [SMPBR]) ont annoncé, en janvier 2013, qu'ils…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 470 rural water supply companies worldwide

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Rural water supply companies worldwide at a glance

As of Sep 21, 2026
34.1%Verified-email coverage
49.2Average contacts per company
11-50Median size (employees)
0.6%Largest-city concentration · Manaus
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
190
11-50
113
51-200
77
201-500
36
501-1,000
20
1,001-5,000
20
5,001-10,000
3
10001+
4

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 rural water supply 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 rural water supply companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “rural water supply 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 rural water supply 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 rural water supply 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, 7,902 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 21, 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.

Rural water supply companies by location

2 lists · largest first

Every Rural water supply 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 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 rural water supply 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 rural water supply companies are there worldwide?

RevenueBase identified 470 rural water supply 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?

Sydney Water, headquartered in Parramatta, tops this list with the largest team on record.

Which country has the most rural water supply companies?

The United States leads with 139 companies, followed by Brazil (28). Every rural water supply companies list by country and city is linked on this page.

Which city has the most rural water supply companies?

Manaus leads with 3 headquartered companies, followed by Alton (2) and Camarillo (2).

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 7,902 verified decision-maker contacts tracked across these 470 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 21, 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.