Company lists · Data refreshed September 2026

Top 25 Wastewater engineering companies based in Brazil

Name: Wastewater engineering companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 714 companies tracked

RevenueBase identified 714 wastewater engineering companies headquartered in Brazil as of September 2026 and tracks 12,948 professional contacts across them, including 2,336 with verified work emails. Sao Paulo is the largest hub.

This list covers wastewater engineering 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 19, 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 19, 2026 86% judged on-target in blind review

714Companies

12,948Contacts tracked

2,336Verified emails

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The 25 largest wastewater engineering companies based in Brazil

Ranked by team size

Top 25 of 714 wastewater engineering companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater engineering 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	GS Inima Brasil	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	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 19, 2026
2	Grupo EP	Indirect evidence	Guarulhos, BrazilHQ checked Sep 19, 2026	501-1,000	434 contacts →
	Indirect evidence “Identificamos e solucionamos problemas relacionados ao tratamento de água e efluentes, reúso, dessalinização e análises ambientais para indústrias, consultorias ambientais e…” Source: RevenueBase Database · checked Sep 19, 2026
3	Grupo Opersan	Indirect evidence	Barueri, BrazilHQ checked Sep 19, 2026	201-500	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 19, 2026
4	Enfil S A	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	307 contacts →
	Indirect evidence “Com mais de 30 anos de atuação no mercado brasileiro, a Enfil é uma empresa referência em soluções ambientais para tratamento de água, efluentes e controle de emissões…” Source: RevenueBase Database · checked Sep 19, 2026
5	Grupo Fast	Indirect evidence	Capinzal, BrazilHQ checked Sep 19, 2026	201-500	275 contacts →
	Indirect evidence “Somos uma das principais indústrias do segmento metalmecânico, com sede em Santa Catarina e atuação internacional.” Source: RevenueBase Database · checked Sep 19, 2026
6	Pimenta DE Ávila Consultoria	Indirect evidence	Nova Lima, BrazilHQ checked Sep 19, 2026	201-500	244 contacts →
	Indirect evidence “Since 1989, the company develops waste disposal studies to a wide range of clients embodying different kind of benefited ore, developing specific work methods according to new…” Source: RevenueBase Database · checked Sep 19, 2026
7	Enops Engenharia S A	Indirect evidence	Matriz, BrazilHQ checked Sep 19, 2026	501-1,000	222 contacts →
	Indirect evidence “A ENOPS Engenharia é uma empresa brasileira com padrões globais de qualidade.” Source: RevenueBase Database · checked Sep 19, 2026
8	Companhia DE Saneamento DE Sergipe	Indirect evidence	Aracaju, BrazilHQ checked Sep 19, 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 19, 2026
9	Manaus Ambiental S.A	Indirect evidence	Manaus, BrazilHQ checked Sep 19, 2026	201-500	177 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 19, 2026
10	Viasolo Engenharia Ambiental	Indirect evidence	Betim, BrazilHQ checked Sep 19, 2026	1,001-5,000	155 contacts →
	Indirect evidence “Em foi firmada uma parceria entre a VEGA (Grupo Solvi) e Construtora Barbosa Mello alinhando tecnologia operacional com experiência comercial, dando origem a Viasolo Engenharia…” Source: RevenueBase Database · checked Sep 19, 2026
11	Ster Engenharia Ltda	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	201-500	147 contacts →
	Indirect evidence “Ster Engenharia” Source: RevenueBase Database · checked Sep 19, 2026
12	Effico Saneamento	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	51-200	147 contacts →
	Indirect evidence “A EFFICO é uma empresa especializada em engenharia para todas as áreas do saneamento (abastecimento de água, esgotamento sanitário e meio ambiente).” Source: RevenueBase Database · checked Sep 19, 2026
13	Senha Engenharia & Urbanismo	Indirect evidence	Goiânia, BrazilHQ checked Sep 19, 2026	201-500	123 contacts →
	Indirect evidence “A SENHA ENGENHARIA é uma empresa de engenharia consultiva com origem e foco na área de saneamento.” Source: RevenueBase Database · checked Sep 19, 2026
14	Attend Ambiental S.A	Indirect evidence	Barueri, BrazilHQ checked Sep 19, 2026	51-200	121 contacts →
	Indirect evidence “A Attend Ambiental é fruto da parceria entre: • a Sabesp, uma das maiores empresas de saneamento do mundo, e • a Latte Saneamento, maior empresa de serviços ambientais do Brasil.” Source: RevenueBase Database · checked Sep 19, 2026
15	EPA Engenharia DE Proteção Ambiental Ltda	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	51-200	120 contacts →
	Indirect evidence “O Grupo EPA oferece as melhores e mais inovadoras soluções para diagnosticar áreas contaminadas, realizar projetos e operar estações de tratamento de água e efluentes e remediar…” Source: RevenueBase Database · checked Sep 19, 2026
16	B&f Dias	Indirect evidence	Vinhedo, BrazilHQ checked Sep 19, 2026	51-200	116 contacts →
	Indirect evidence “A B&F Dias é referência mundial em soluções para tratamento de águas e efluentes.” Source: RevenueBase Database · checked Sep 19, 2026
17	Projesan Water & CO	Indirect evidence	Gaspar, BrazilHQ checked Sep 19, 2026	51-200	110 contacts →
	Indirect evidence “Na Projesan, avançamos a química de quem trata água todos os dias.” Source: RevenueBase Database · checked Sep 19, 2026
18	Catui Engenharia Ltda	Indirect evidence	Santana De Parnaiba, BrazilHQ checked Sep 19, 2026	51-200	104 contacts →
	Indirect evidence “Empresa de engenharia consultiva e executiva especializada na área de saneamento básico.” Source: RevenueBase Database · checked Sep 19, 2026
19	Sanit Engenharia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 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 19, 2026
20	BBL Engenharia, Construção E Comércio, Ltda	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	51-200	99 contacts →
	Indirect evidence “A BBL ENGENHARIA foi constituída para atuar no mercado de soluções completas de engenharia para otimização operacional de sistemas de abastecimento de água e de coleta de esgoto e…” Source: RevenueBase Database · checked Sep 19, 2026
21	Hydrosistem Engenharia	Indirect evidence	Salvador, BrazilHQ checked Sep 19, 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 19, 2026
22	Sanex Soluções	Indirect evidence	Sorocaba, BrazilHQ checked Sep 19, 2026	51-200	79 contacts →
	Indirect evidence “A SANEX é uma empresa de consultoria técnica e prestação de serviços que atua desde 2002 nas áreas de saneamento básico, meio ambiente e recursos naturais.” Source: RevenueBase Database · checked Sep 19, 2026
23	Tecma-Tecnologia EM Meio Ambiente Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	51-200	76 contacts →
	Indirect evidence “TECMA - TECNOLOGIA EM MEIO AMBIENTE LTDA.” Source: RevenueBase Database · checked Sep 19, 2026
24	Avanex	Indirect evidence	Palmeira, BrazilHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence “A Avanex é uma empresa fundada em 1985 no Município de Palmeira na Serra Catarinense.” Source: RevenueBase Database · checked Sep 19, 2026
25	Pacha Inteligência Hídrica Ambiental	Indirect evidence	São Bernardo Do Campo, BrazilHQ checked Sep 19, 2026	51-200	73 contacts →
	Indirect evidence “A PACHA através de sua experiência na área ambiental, nasce para apoiar equipes e processos de tratamento de água, efluente e reuso, na resolução de problemas, acompanhamento…” Source: RevenueBase Database · checked Sep 19, 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: wastewater engineering 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 wastewater engineering companies.
Partial evidence: Its own public description names part of wastewater engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater engineering 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 714 wastewater engineering companies based in Brazil

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Wastewater engineering companies based in Brazil at a glance

As of Sep 19, 2026

18.0%Verified-email coverage

18.1Average contacts per company

11-50Median size (employees)

12.7%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

307

11-50

258

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 714 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 wastewater engineering 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 “wastewater engineering 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 wastewater engineering 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 wastewater engineering 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, 2,336 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 19, 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.

Wastewater engineering companies by metro

Wastewater engineering companies in Sao Paulo91
Wastewater engineering companies in Belo Horizonte32
Wastewater engineering companies in Rio De Janeiro27

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 wastewater engineering 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 wastewater engineering companies are there based in Brazil?

RevenueBase identified 714 wastewater engineering 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?

GS Inima Brasil, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most wastewater engineering companies?

Sao Paulo leads with 91 headquartered companies, followed by Belo Horizonte (32) and Rio De Janeiro (27).

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 2,336 verified decision-maker contacts tracked across these 714 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 19, 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.