Company lists · Data refreshed November 2026

Top 25 Water sanitation organizations worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 11,417 companies tracked

RevenueBase identified 11,417 company matches for water sanitation organizations worldwide as of November 2026 and tracks 383,581 professional contacts across them, including 107,810 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for water sanitation organizations 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 November 6, 2026. Country and city lists for water sanitation organizations 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 Nov 6, 2026 How this list was built

11,417Companies

383,581Contacts tracked

107,810Verified emails

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The 25 largest water sanitation organizations worldwide

Ranked by team size

Top 25 of 11,417 company matches for water sanitation organizations worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Ecolab	Exact match	St. Paul, MN, United StatesHQ recorded Nov 6, 2026	10001+	33,933 contacts →
	Exact match “A trusted partner for millions of customers, Ecolab (NYSE:ECL) is a global sustainability leader offering water, hygiene and infection prevention solutions and services that…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	SUEZ	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	23,115 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 · Nov 6, 2026 · View company records in RevenueBase
3	XYLEM	Exact match	Washington, DC, United StatesHQ recorded Nov 6, 2026	10001+	7,002 contacts →
	Exact match “Xylem is the global leader in advanced technologies, solutions and services that address the world’s biggest water challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Thames Water	Exact match	Reading, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	6,329 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 · Nov 6, 2026 · View company records in RevenueBase
5	Severn Trent	Exact match	Coventry, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	6,089 contacts →
	Exact match “Water is wonderful.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Sydney Water	Exact match	Parramatta, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	3,922 contacts →
	Exact match “We deliver essential and sustainable water services for the benefit of the community.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	SAUR	Exact match	Issy-les-moulineaux, FranceHQ recorded Nov 6, 2026	10001+	3,921 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 · Nov 6, 2026 · View company records in RevenueBase
8	Aegea Saneamento	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	10001+	3,778 contacts →
	Exact match “Somos a Aegea Saneamento, empresa líder no setor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Anglian Water Services	Exact match	Huntingdon, United KingdomHQ recorded Nov 6, 2026	5,001-10,000	3,747 contacts →
	Exact match “Anglian Water supply water and water recycling services to more than six million domestic and business customers in the east of England and Hartlepool.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	BRK Ambiental	Exact match	BrazilHQ recorded Nov 6, 2026	5,001-10,000	3,589 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 · Nov 6, 2026 · View company records in RevenueBase
11	Rand Water	Exact match	Glenvista, South AfricaHQ recorded Nov 6, 2026	1,001-5,000	3,185 contacts →
	Exact match “VISION: Be a provider of sustainable, universally competitive water and sanitation solutions for Africa.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Corsan	Exact match	Porto Alegre, BrazilHQ recorded Nov 6, 2026	1,001-5,000	3,169 contacts →
	Exact match “Atendendo a mais de 6,5 milhões de clientes, a Corsan é responsável pelo saneamento básico em 317 cidades do Rio Grande do Sul.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Copasa	Exact match	Belo Horizonte, BrazilHQ recorded Nov 6, 2026	10001+	2,152 contacts →
	Exact match “Página Oficial da COPASA -” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Iguá Saneamento	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,141 contacts →
	Exact match “A Iguá Saneamento é uma das maiores empresas de saneamento do Brasil, com operações em 120 municípios de Alagoas, Mato Grosso, Paraná, Rio de Janeiro, São Paulo e Sergipe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Uisce Éireann Irish Water	Exact match	Dublin, IrelandHQ recorded Nov 6, 2026	1,001-5,000	2,046 contacts →
	Exact match “We are Uisce Éireann.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Culligan International	Exact match	Rosemont, IL, United StatesHQ recorded Nov 6, 2026	10001+	1,978 contacts →
	Exact match “There’s nothing more fundamental to life on Earth than water.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	DŴR Cymru Welsh Water	Exact match	Cardiff, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,970 contacts →
	Exact match “Bath-times, half-times, party-times, meeting-times, and cooking-times.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Sanepar	Exact match	Curitiba, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,821 contacts →
	Exact match “Visão e Missão Nossa Visão Consolidar a Sanepar como empresa pública, comprometida com a universalização do acesso aos serviços de saneamento ambiental.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Aguas Andinas	Exact match	La Pintana, ChileHQ recorded Nov 6, 2026	1,001-5,000	1,703 contacts →
	Exact match “Nuestra gestión se sustenta en altos estándares de profesionalismo y experiencia que nos permite entregar un servicio de gran calidad, cautelando la sostenibilidad de los recursos…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Manila Water	Exact match	Quezon City, PhilippinesHQ recorded Nov 6, 2026	1,001-5,000	1,679 contacts →
	Exact match “Manila Water Company, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	SEAAL	Exact match	Alger, AlgeriaHQ recorded Nov 6, 2026	5,001-10,000	1,656 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Aqualia	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	5,001-10,000	1,606 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 · Nov 6, 2026 · View company records in RevenueBase
23	AQUA	Exact match	Bryn Mawr, PA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,588 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Waternet	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	1,528 contacts →
	Exact match “Water is overal om ons heen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Melbourne Water	Exact match	Melbourne, AustraliaHQ recorded Nov 6, 2026	1,001-5,000	1,519 contacts →
	Exact match “In Melbourne, water is essential to our way of life.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “water sanitation organizations”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 11,417 water sanitation organizations worldwide

See the full list, filter by size, metro and specialty, and access 107,810 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water sanitation organizations worldwide at a glance

As of Nov 6, 2026

28.1%Verified-email coverage

33.6Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

5,139

11-50

3,581

51-200

1,470

201-500

536

501-1,000

222

1,001-5,000

215

5,001-10,000

10001+

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 sanitation organizations are linked below.
What qualifies: Company records worldwide whose business descriptions match “water sanitation organizations” 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 107,810 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 November 6, 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 sanitation organizations by location

56 lists · largest first

Every Water sanitation organizations 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 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 sanitation organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water sanitation organizations are there worldwide?

RevenueBase identified 11,417 company matches for water sanitation organizations worldwide as of November 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?

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

Which country has the most water sanitation organizations?

The United States leads with 2,026 companies, followed by Brazil (948) and India (742). Every water sanitation organizations list by country and city is linked on this page.

Which city has the most water sanitation organizations?

Sao Paulo leads with 118 company records, followed by Nairobi (67) and New Delhi (61).

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 107,810 professional contacts with verified work emails tracked across these 11,417 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 November 6, 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.