Company lists · Data refreshed September 2026

Top 25 Municipal water infrastructure builders based in Brazil

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 166 companies tracked

RevenueBase identified 166 municipal water infrastructure builders headquartered in Brazil as of September 2026 and tracks 19,520 professional contacts across them, including 3,527 with verified work emails. Sao Paulo is the largest hub.

This list covers municipal water infrastructure builders 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 20, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

166Companies

19,520Contacts tracked

3,527Verified emails

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The 25 largest municipal water infrastructure builders based in Brazil

Ranked by team size

Top 25 of 166 municipal water infrastructure builders based in Brazil, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to municipal water infrastructure builders: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sabesp	Strong evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	10001+	10,050 contacts →
	Strong 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 20, 2026
2	CEDAE	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	1,001-5,000	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 20, 2026
3	Ambiental Ceará	Indirect evidence	Cariri Ao Litoral, BrazilHQ checked Sep 20, 2026	501-1,000	283 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
4	Companhia DE Saneamento DE Sergipe	Indirect evidence	Aracaju, BrazilHQ checked Sep 20, 2026	1,001-5,000	210 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
5	SAMAE	Partial evidence	Caxias Do Sul, BrazilHQ checked Sep 20, 2026	201-500	127 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
6	Sanit Engenharia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	201-500	102 contacts →
	Indirect evidence “A Sanit Engenharia foi fundada em 1989 com o intuito de contribuir no campo da Engenharia Civil.” Source: RevenueBase Database · checked Sep 20, 2026
7	Hydrosistem Engenharia	Indirect evidence	Salvador, BrazilHQ checked Sep 20, 2026	1,001-5,000	92 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
8	Rotária DO Brasil	Indirect evidence	Florianópolis, BrazilHQ checked Sep 20, 2026	51-200	72 contacts →
	Indirect evidence “A Rotária do Brasil é uma empresa de Engenharia especializada em projetos, implantação e operação de sistemas de tratamento de efluentes/esgotos e água potável.” Source: RevenueBase Database · checked Sep 20, 2026
9	Companhia DE Saneamento DO Parana Sanepar	Indirect evidence	Curitiba, BrazilHQ checked Sep 20, 2026	5,001-10,000	64 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
10	Geasa Engenharia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	51-200	56 contacts →
	Indirect evidence “Criada em 2001, a Geasanevita atua em projetos que envolvem engenharia de infraestrutura de saneamento em geral, tais como água, esgotamento sanitário, drenagem, hidrologia…” Source: RevenueBase Database · checked Sep 20, 2026
11	BIO G Soluções Inteligentes EM Saneamento	Indirect evidence	Florianópolis, BrazilHQ checked Sep 20, 2026	201-500	52 contacts →
	Indirect evidence “A Bio G Engenharia e Sistemas de Saneamento é uma empresa que surgiu através de incessantes pesquisas e desenvolvimento tecnológico.” Source: RevenueBase Database · checked Sep 20, 2026
12	Celebre Ambiental	Indirect evidence	Barueri, BrazilHQ checked Sep 20, 2026	201-500	46 contacts →
	Indirect evidence “Uma empresa ágil e dinâmica dedicada a prover soluções de engenharia para clientes da iniciativa pública e privada.” Source: RevenueBase Database · checked Sep 20, 2026
13	Ebs- Empresa Brasileira DE Saneamento	Indirect evidence	Joinville, BrazilHQ checked Sep 20, 2026	201-500	38 contacts →
	Indirect evidence “A EBS - Empresa Brasileira de Saneamento, é uma das principais empresas privadas atuantes no setor, e atende os municípios no gerenciamento, operação, manutenção de sistemas de…” Source: RevenueBase Database · checked Sep 20, 2026
14	Águas DE SÃO Francisco	Indirect evidence	Barcarena, BrazilHQ checked Sep 20, 2026	51-200	37 contacts →
	Indirect evidence “A Águas de São Francisco é a concessionária responsável pelos serviços de água e tratamento de esgoto do município de Barcarena, no Pará.” Source: RevenueBase Database · checked Sep 20, 2026
15	Semasa Itajaí	Indirect evidence	Itajaí, BrazilHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
16	Companhia DE Águas E Esgotos DE Roraima	Indirect evidence	Boa Vista, BrazilHQ checked Sep 20, 2026	501-1,000	28 contacts →
	Indirect evidence “Companhia de águas e esgotos de roraima - caer” Source: RevenueBase Database · checked Sep 20, 2026
17	Hidrosan Engenharia	Indirect evidence	São Carlos, BrazilHQ checked Sep 20, 2026	11-50	27 contacts →
	Indirect evidence “Desenvolvemos projetos de estação de tratamento de água e dos resíduos nela gerados, com metodologias de trabalho adequadas a cada cliente, garantindo as melhores soluções…” Source: RevenueBase Database · checked Sep 20, 2026
18	DAE Americana	Partial evidence	Americana, BrazilHQ checked Sep 20, 2026	201-500	26 contacts →
	Partial evidence “Histórico Em 20 de novembro de 1973, a Lei n° 1.258 deu nova estrutura organizacional e administrativa a esse órgão municipal, que passou a denominar-se DAE – Departamento de Água…” Source: RevenueBase Database · checked Sep 20, 2026
19	Starsan Engenharia E Tecnologia EM Construções	Indirect evidence	Santos, BrazilHQ checked Sep 20, 2026	51-200	21 contacts →
	Indirect evidence “Fundada em 2012, a Starsan reuniu a experiência que carrega seu corpo técnico e equipe há mais de 20 anos no mercado com as novas experiências trazidas pelo seu corpo societário.” Source: RevenueBase Database · checked Sep 20, 2026
20	Mazure Saneamento	Indirect evidence	Salvador, BrazilHQ checked Sep 20, 2026	11-50	15 contacts →
	Indirect evidence “A MAQFILTROS é uma empresa altamente especializada nos mais diversos projetos hídricos.” Source: RevenueBase Database · checked Sep 20, 2026
21	Saluta Saneamento	Indirect evidence	Pedro Leopoldo, BrazilHQ checked Sep 20, 2026	51-200	8 contacts →
	Indirect evidence “Somos uma empresa integrada, atuando desde 2008 no fornecimento de soluções completas para tratamento de esgoto e água, com atuação em todo o território nacional, abrangendo-…” Source: RevenueBase Database · checked Sep 20, 2026
22	Conecte Projetos DE Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “Projetos hidráulicos: Projetos de instalações de água fria, água quente, esgoto, irrigação, drenagem e reaproveitamento de água, em: Edificações residenciais, comerciais e…” Source: RevenueBase Database · checked Sep 20, 2026
23	Aliter Construções E Saneamento	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	201-500	5 contacts →
	Indirect evidence “A ALITER nasceu em 1984 para atuar na área de saneamento básico e atender à crescente demanda do mercado da construção civil.” Source: RevenueBase Database · checked Sep 20, 2026
24	Araricá Saneamento	Indirect evidence	Araricá, BrazilHQ checked Sep 20, 2026	11-50	4 contacts →
	Indirect evidence “Ararica Saneamento é a concessionária responsável pelo tratamento, distribuição de água e tratamento de esgotamento sanitário no município de Araricá, situado entre a Encosta do…” Source: RevenueBase Database · checked Sep 20, 2026
25	FS Tech Engenharia	Indirect evidence	Goiânia, BrazilHQ checked Sep 20, 2026	11-50	4 contacts →
	Indirect evidence “A FS Tech Engenharia é referência em soluções de saneamento para empreendimentos e infraestrutura urbana, atuando com foco total em tecnologia, eficiência e agilidade nas…” Source: RevenueBase Database · checked Sep 20, 2026

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: municipal water infrastructure builders. 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 municipal water infrastructure builders.
Partial evidence: Its own public description names part of municipal water infrastructure builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name municipal water infrastructure builders. 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 166 municipal water infrastructure builders based in Brazil

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Municipal water infrastructure builders based in Brazil at a glance

As of Sep 20, 2026

18.1%Verified-email coverage

117.6Average contacts per company

11-50Median size (employees)

9.6%Largest-city concentration · Sao Paulo

Sep 20, 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 166 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 municipal water infrastructure builders, 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 “municipal water infrastructure builders”. 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 municipal water infrastructure builders), 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 municipal water infrastructure builders, 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, 3,527 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 20, 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.

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 municipal water infrastructure builders, 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 municipal water infrastructure builders are there based in Brazil?

RevenueBase identified 166 municipal water infrastructure builders 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 municipal water infrastructure builders?

Sao Paulo leads with 16 headquartered companies, followed by Belo Horizonte (6) and Rio De Janeiro (6).

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 3,527 verified decision-maker contacts tracked across these 166 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 20, 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.