Company lists · Data refreshed September 2026

Top 25 Municipal water utilities based in Brazil

Name: Municipal water utilities based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 261 companies tracked

RevenueBase identified 261 company matches for municipal water utilities associated with Brazil as of September 2026 and tracks 39,597 professional contacts across them, including 8,098 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for municipal water utilities associated with Brazil, 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 17, 2026.

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 17, 2026 How this list was built

261Companies

39,597Contacts tracked

8,098Verified emails

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The 25 largest municipal water utilities based in Brazil

Ranked by team size

Top 25 of 261 company matches for municipal water utilities based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Sabesp	Exact match	Sao Paulo, BrazilHQ recorded Sep 17, 2026	10001+	10,050 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Aegea Saneamento	Exact match	Sao Paulo, BrazilHQ recorded Sep 17, 2026	10001+	3,386 contacts →
	Exact match “Somos a Aegea Saneamento, empresa líder no setor.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Corsan	Exact match	Porto Alegre, BrazilHQ recorded Sep 17, 2026	1,001-5,000	2,788 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 · Sep 17, 2026 · View company records in RevenueBase
4	CEDAE	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 17, 2026	1,001-5,000	2,478 contacts →
	Exact match “Constituída oficialmente em 1º de agosto de 1975, a Companhia Estadual de Águas e Esgotos (CEDAE) é oriunda da fusão da Empresa de Águas do Estado da Guanabara (CEDAG), da Empresa…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Copasa	Exact match	Belo Horizonte, BrazilHQ recorded Sep 17, 2026	10001+	2,034 contacts →
	Exact match “Página Oficial da COPASA -” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Iguá Saneamento	Exact match	São Paulo, BrazilHQ recorded Sep 17, 2026	1,001-5,000	1,905 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 · Sep 17, 2026 · View company records in RevenueBase
7	Sanepar	Exact match	Curitiba, BrazilHQ recorded Sep 17, 2026	5,001-10,000	1,736 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 · Sep 17, 2026 · View company records in RevenueBase
8	Grupo Águas DO Brasil	Exact match	Niterói, BrazilHQ recorded Sep 17, 2026	1,001-5,000	1,334 contacts →
	Exact match “Fundado em 1998, o Grupo Águas do Brasil é um dos principais grupos privados de saneamento básico do país, presente em 32 municípios nos estados do Rio de Janeiro, Minas Gerais e…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Companhia DE Água E Esgoto DO Ceará - Cagece	Exact match	Fortaleza, BrazilHQ recorded Sep 17, 2026	1,001-5,000	1,202 contacts →
	Exact match “A Companhia de Água e Esgoto do Ceará (Cagece), fundada em 1971, é uma empresa de economia mista com capital aberto que tem por finalidade a prestação dos serviços de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Companhia Catarinense DE Águas E Saneamento - Casan	Exact match	Florianópolis, BrazilHQ recorded Sep 17, 2026	1,001-5,000	955 contacts →
	Exact match “A Companhia Catarinense de Águas e Saneamento (CASAN) é uma empresa pública de economia mista e de capital aberto, que atua como concessionária do setor de saneamento por meio de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Cavo Serviços E Saneamento S.A	Exact match	São Paulo, BrazilHQ recorded Sep 17, 2026	1,001-5,000	486 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	GS Inima Brasil	Exact match	Sao Paulo, BrazilHQ recorded Sep 17, 2026	1,001-5,000	439 contacts →
	Exact match “A GS Inima Brasil é uma das maiores e mais respeitadas companhias privadas de saneamento do país, oferecendo soluções inovadoras e integradas.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Sanasa Campinas	Exact match	Campinas, BrazilHQ recorded Sep 17, 2026	1,001-5,000	421 contacts →
	Exact match “Sanasa Campinas is an environmental services company based out of Av Da Saudade, 500, Terreo, Campinas, São Paulo, Brazil.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Companhia Águas DE Joinville Oficial	Exact match	Joinville, BrazilHQ recorded Sep 17, 2026	201-500	407 contacts →
	Exact match “A Companhia Águas de Joinville (CAJ) é uma empresa pública de saneamento básico da prefeitura municipal da cidade.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Ambiental Ceará	Exact match	Cariri Ao Litoral, BrazilHQ recorded Sep 17, 2026	501-1,000	283 contacts →
	Exact match “A Ambiental Ceará é a de esgoto da Cagece, a maior do país no setor de saneamento básico, e chega para somar na vida do cearense, ficando responsável pela ampliação, operação e…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	General Water	Exact match	Sao Paulo, BrazilHQ recorded Sep 17, 2026	201-500	221 contacts →
	Exact match “A General Water é a principal concessionária particular de água do Brasil, com foco em operações nas regiões Sudeste, Centro-Oeste e Nordeste do país.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Conasa Águas DO Sertão	Exact match	Penedo, BrazilHQ recorded Sep 17, 2026	201-500	211 contacts →
	Exact match “A Conasa Águas do Sertão nasce com o compromisso de contribuir com a qualidade de vida da população de 40 municípios do interior de Alagoas, por meio prestação de serviços de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Companhia DE Saneamento DE Sergipe	Exact match	Aracaju, BrazilHQ recorded Sep 17, 2026	1,001-5,000	210 contacts →
	Exact match “Somos a Companhia de Saneamento de Sergipe (Deso), empresa de economia mista, criada em 25 de agosto de 1969 e responsável por estudos, projetos e execução de serviços de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Cesama	Exact match	Juiz De Fora, BrazilHQ recorded Sep 17, 2026	201-500	179 contacts →
	Exact match “Há 60 anos, a Cesama é a empresa pública responsável pelo fornecimento de água e coleta de esgoto na cidade de Juiz de Fora - MG.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Manaus Ambiental S.A	Exact match	Manaus, BrazilHQ recorded Sep 17, 2026	201-500	177 contacts →
	Exact match “A Manaus Ambiental é Águas de Manaus uma empresa da Aegea, a maior companhia brasileira de saneamento do setor privado.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Prolagos	Exact match	São Pedro Da Aldeia, BrazilHQ recorded Sep 17, 2026	201-500	161 contacts →
	Exact match “A Prolagos, empresa da Aegea Saneamento, é a concessionária responsável pelos serviços de saneamento básico em cinco municípios da Região dos Lagos (Cabo Frio, Armação dos Búzios…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	SAMAE	Exact match	Caxias Do Sul, BrazilHQ recorded Sep 17, 2026	201-500	127 contacts →
	Exact match “Serviço Autônomo Municipal de Água e Esgoto (SAMAE) O SAMAE, criado pela Lei n° 1.474 de 5 de janeiro de 1966, é produto de um contexto histórico em que os serviços de saneamento…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Companhia Operacional DE Desenvolvimento, Saneamento E Ações Urbanas - Codau	Exact match	Uberaba, BrazilHQ recorded Sep 17, 2026	501-1,000	105 contacts →
	Exact match “A Companhia Operacional de Desenvolvimento, Saneamento e Ações Urbanas (Codau) é uma autarquia municipal fundada em 7 de junho de 1966, no município de Uberaba.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Hydrosistem Engenharia	Exact match	Salvador, BrazilHQ recorded Sep 17, 2026	1,001-5,000	92 contacts →
	Exact match “A Hydrosistem Engenharia é referência nacional em soluções completas de saneamento, com mais de 20 anos de atuação no gerenciamento, operação e manutenção de sistemas de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Daae Araraquara	Exact match	Araraquara, BrazilHQ recorded Sep 17, 2026	201-500	72 contacts →
	Exact match “O Departamento Autônomo de Água e Esgotos (Daae) é uma autarquia municipal prestadora pública de serviços de saneamento básico (água e esgotos) no município de Araraquara.” Recorded in the RevenueBase company graph · Sep 17, 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 “municipal water utilities”. 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 261 municipal water utilities based in Brazil

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Municipal water utilities based in Brazil at a glance

As of Sep 17, 2026

20.5%Verified-email coverage

151.7Average contacts per company

11-50Median size (employees)

8.8%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 261 companies.

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.
What qualifies: Company records associated with Brazil whose business descriptions match “municipal water utilities” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 8,098 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 17, 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.

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 “municipal water utilities”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many municipal water utilities are there based in Brazil?

RevenueBase identified 261 company matches for municipal water utilities associated with Brazil 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?

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

Which city has the most municipal water utilities?

Sao Paulo leads with 23 company records, followed by Salvador (6) and Manaus (5).

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 8,098 professional contacts with verified work emails tracked across these 261 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 17, 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.