Company lists · Data refreshed September 2026
Top 25 Water and sanitation companies based in Brazil
RevenueBase identified 858 water and sanitation companies headquartered in Brazil as of September 2026 and tracks 62,559 professional contacts across them, including 12,050 with verified work emails. Sao Paulo is the largest hub.
This list covers water and sanitation companies headquartered in Brazil, 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 22, 2026.
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.
The 25 largest water and sanitation companies based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 10,050 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,386 contacts → | ||||
Indirect evidence “Somos a Aegea Saneamento, empresa líder no setor.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,788 contacts → | ||||
Indirect evidence “Atendendo a mais de 6,5 milhões de clientes, a Corsan é responsável pelo saneamento básico em 317 cidades do Rio Grande do Sul.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,478 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,477 contacts → | ||||
Indirect evidence “Somos a concessionária responsável pela água e esgoto em 27 municípios do estado do Rio, incluído as zonas Sul, Norte e Centro da Capital.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 2,034 contacts → | ||||
Indirect evidence “Página Oficial da COPASA -” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,905 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,736 contacts → | ||||
Indirect evidence “Visão e Missão Nossa Visão Consolidar a Sanepar como empresa pública, comprometida com a universalização do acesso aos serviços de saneamento ambiental.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,713 contacts → | ||||
Indirect evidence “Canais de relacionamento com o cliente: 0800 645 0115 (62) 3269-9115 A Saneamento de Goiás S.A.(Saneago) é concessionária de serviços de saneamento básico no estado de Goiás.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,334 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,202 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 955 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 953 contacts → | ||||
Indirect evidence “Sociedade anônima de economia mista, com fins de utilidade pública, a Compesa está vinculada ao Governo do Estado de Pernambuco por meio da Secretaria de Recursos Hídricos e…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 817 contacts → | ||||
Indirect evidence “A Rio+Saneamento é a mais nova concessionária de água e esgoto de 18 municípios do estado do Rio de Janeiro, incluindo 24 bairros da Zona Oeste carioca, uma empresa do Grupo Águas…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 765 contacts → | ||||
Indirect evidence “Founded in 1987, Corpus Saneamento e Obras was created by Engineer Cineas Feijó Valente.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 684 contacts → | ||||
Indirect evidence “A Águas de Manaus é uma empresa da Aegea Saneamento, maior companhia privada do setor no país.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 647 contacts → | ||||
Indirect evidence “Atuando no setor de limpeza urbana desde 1957, a Sustentare Saneamento especializou-se no desenvolvimento e operação de serviços ambientais, sendo pioneira na implantação de…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 644 contacts → | ||||
Indirect evidence “A Ambiental atua como parceira estratégica da gestão pública na construção de cidades mais eficientes, sustentáveis e preparadas para o crescimento urbano.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 486 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 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 439 contacts → | ||||
Indirect evidence “A GS Inima Brasil é uma das maiores e mais respeitadas companhias privadas de saneamento do país, oferecendo soluções inovadoras e integradas.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 421 contacts → | ||||
Indirect evidence “Sanasa Campinas is an environmental services company based out of Av Da Saudade, 500, Terreo, Campinas, São Paulo, Brazil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 407 contacts → | ||||
Indirect evidence “A Companhia Águas de Joinville (CAJ) é uma empresa pública de saneamento básico da prefeitura municipal da cidade.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 363 contacts → | ||||
Indirect evidence “A Zona Oeste Mais Saneamento é a empresa responsável pelos serviços de esgotamento sanitário de 24 bairros da Zona Oeste do Rio, beneficiando 1,8 milhão de pessoas.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 340 contacts → | ||||
Indirect evidence “Com mais de 40 anos de experiência, a Opersan é uma empresa brasileira que oferece ao mercado corporativo soluções completas para a gestão de águas e efluentes.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 335 contacts → | ||||
Indirect evidence “Produserv Servicos is an utilities company based out of Rua Paulo Alves Pinto 144, Araucária, Paraná, Brazil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: water and sanitation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names water and sanitation companies.
- Partial evidence
- Its own public description names part of water and sanitation companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water and sanitation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 858 water and sanitation companies based in Brazil
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Water and sanitation companies based in Brazil at a glance
As of Sep 22, 2026Companies by employee count
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 858 companies.
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 water and sanitation 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.
- What qualifies
- Companies headquartered in Brazil whose own description of what they do matches “water and sanitation 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 water and sanitation 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 water and sanitation companies, and records with no verified work email. Companies headquartered outside Brazil are excluded even when they keep an office there.
- 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, 12,050 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 22, 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.
Water and sanitation companies by metro
- Water and sanitation companies in Sao Paulo89
- Water and sanitation companies in Rio De Janeiro30
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 water and sanitation 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 water and sanitation companies are there based in Brazil?
RevenueBase identified 858 water and sanitation companies headquartered in Brazil 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?
Sabesp, headquartered in Sao Paulo, tops this list with the largest team on record.
Which city has the most water and sanitation companies?
Sao Paulo leads with 89 headquartered companies, followed by Rio De Janeiro (30) and Belo Horizonte (22).
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 12,050 verified decision-maker contacts tracked across these 858 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 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 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.
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