Company lists · Data refreshed September 2026

Top 23 Activated sludge treatment providers based in Brazil

Name: Activated sludge treatment providers based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 86 companies tracked

RevenueBase identified 86 activated sludge treatment providers headquartered in Brazil as of September 2026 and tracks 1,261 professional contacts across them, including 118 with verified work emails. Sao Paulo is the largest hub.

This list covers activated sludge treatment providers 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

86Companies

1,261Contacts tracked

118Verified emails

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The 23 largest activated sludge treatment providers based in Brazil

Ranked by team size

Top 23 of 86 activated sludge treatment providers 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 activated sludge treatment providers: 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	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
2	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
3	Rotária DO Brasil	Indirect evidence	Florianópolis, BrazilHQ checked Sep 19, 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 19, 2026
4	Foxwater	Partial evidence	Campinas, BrazilHQ checked Sep 19, 2026	501-1,000	52 contacts →
	Partial evidence “FOXWATER is specialized in effluents treatment from industrial origin, percolated also known as landfills leachate, ballast water, domestic sewage, reuse water, among others.” Source: RevenueBase Database · checked Sep 19, 2026
5	EEA Empresa DE Engenharia Ambiental	Indirect evidence	Rio Claro, BrazilHQ checked Sep 19, 2026	11-50	49 contacts →
	Indirect evidence “A Empresa de Engenharia Ambiental - EEA é uma empresa de projetos e execução de Estações de Tratamento de Esgoto Sanitário e Efluentes Industriais atuando no mercado desde Com…” Source: RevenueBase Database · checked Sep 19, 2026
6	CSJ	Indirect evidence	Jundiaí, BrazilHQ checked Sep 19, 2026	51-200	30 contacts →
	Indirect evidence “A Companhia Saneamento de Jundiaí construiu e opera a maior Estação de Tratamento de Esgoto do município, desde 1996.” Source: RevenueBase Database · checked Sep 19, 2026
7	Biotecs Engenharia E Comércio Ltda	Indirect evidence	Ribeirão Preto, BrazilHQ checked Sep 19, 2026	11-50	24 contacts →
	Indirect evidence “A Biotecs é uma empresa de engenharia, desenvolvimentos e de contratos que fornece suas Sti’s nos moldes “chave na mão”, com avançadas Tecnologias, de sua propriedade, para o…” Source: RevenueBase Database · checked Sep 19, 2026
8	Axson Filtros	Indirect evidence	Blumenau, BrazilHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “Na Axson, resolver é mais do que entregar.” Source: RevenueBase Database · checked Sep 19, 2026
9	ACN	Indirect evidence	Aquiraz, BrazilHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “Fundada há mais de cinco anos, somos uma empresa com foco na prestação de serviços técnicos voltados para o tratamento de água e efluentes.” Source: RevenueBase Database · checked Sep 19, 2026
10	Tecwater Systems	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	1-10	16 contacts →
	Indirect evidence “ESPECIALISTA EM SOLUÇÕES PARA TRATAMENTO DE ÁGUAS E EFLUENTES - Engenharia Multidisciplinar para as Soluções de Projetos e Instalações de Sistemas e Equipamentos - Serviços…” Source: RevenueBase Database · checked Sep 19, 2026
11	Clean Water WTC	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	51-200	16 contacts →
	Indirect evidence “A CLEAN WATER é uma empresa especializada em soluções ambientalmente responsáveis fornecendo serviços de tratamento de água para todos os setores industriais atuando no mercado…” Source: RevenueBase Database · checked Sep 19, 2026
12	Mazure Saneamento	Indirect evidence	Salvador, BrazilHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “A MAQFILTROS é uma empresa altamente especializada nos mais diversos projetos hídricos.” Source: RevenueBase Database · checked Sep 19, 2026
13	Ambient Servicos Ambientais DE Ribeirao Preto	Indirect evidence	Ribeirao Preto, BrazilHQ checked Sep 19, 2026	51-200	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
14	Fast Industria E Comercio	Indirect evidence	Capinzal, BrazilHQ checked Sep 19, 2026	51-200	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
15	Saluta Saneamento	Indirect evidence	Pedro Leopoldo, BrazilHQ checked Sep 19, 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 19, 2026
16	Wetlands Construidos	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Nós implantamos em industrias, mineradoras e municípios sistemas de tratamento natural de águas e efluentes e lodos projetados sob medida, integrando os arranjos mais avançados da…” Source: RevenueBase Database · checked Sep 19, 2026
17	Ebio Tecnologia Ambiental	Indirect evidence	Joinville, BrazilHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Oferecemos Soluções em- Estações de Tratamento de Esgoto Compactas (residências, prédios comerciais, hotéis, pousadas, indústrias, loteamentos)- Sistemas para captação e…” Source: RevenueBase Database · checked Sep 19, 2026
18	Forza Z Separation Technology	Indirect evidence	Valinhos, BrazilHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Aliamos experiência, tecnologia e melhor custo-benefício para indicar a solução mais adequada para o tratamento de lodo industrial e municipal.” Source: RevenueBase Database · checked Sep 19, 2026
19	Ecoete Engenharia E Equip. Para Saneamento Ambient	Indirect evidence	Manaus, BrazilHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Somos uma empresa com capital 100% nacional, com mais de 20 anos de experiência no segmento.” Source: RevenueBase Database · checked Sep 19, 2026
20	Gaia Saneamento	Indirect evidence	São José, BrazilHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “A carência de serviços qualificados na área do saneamento gera inúmeros prejuízos à população e aos empreendimentos que dependem de sistemas de tratamento.” Source: RevenueBase Database · checked Sep 19, 2026
21	Cristalize Soluções Ambientais	Indirect evidence	Votuporanga, BrazilHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “A Cristalize é uma empresa especializada em limpeza de lagoas de tratamento de esgoto doméstico e industrial.” Source: RevenueBase Database · checked Sep 19, 2026
22	EMTRE	Indirect evidence	Presidente Castelo Branco, BrazilHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “Oferecer e executar o serviço de tratamento de efluentes de forma exemplar ao padrão exigido pela sociedade e órgãos fiscalizadores.” Source: RevenueBase Database · checked Sep 19, 2026
23	Neoacqua	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Sua empresa ou empreendimento tem um projeto eficiente de tratamento de recursos hídricos?” 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: activated sludge treatment providers. 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 activated sludge treatment providers.
Partial evidence: Its own public description names part of activated sludge treatment providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name activated sludge treatment providers. 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 23 of 86 activated sludge treatment providers based in Brazil

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Activated sludge treatment providers based in Brazil at a glance

As of Sep 19, 2026

9.4%Verified-email coverage

14.7Average contacts per company

11-50Median size (employees)

7.0%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 86 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 activated sludge treatment providers, 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 “activated sludge treatment providers”. 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 activated sludge treatment providers), 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 activated sludge treatment providers, 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, 118 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.

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 activated sludge treatment providers, 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 activated sludge treatment providers are there based in Brazil?

RevenueBase identified 86 activated sludge treatment providers 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?

Attend Ambiental S.A, headquartered in Barueri, tops this list with the largest team on record.

Which city has the most activated sludge treatment providers?

Sao Paulo leads with 6 headquartered companies, followed by Rio De Janeiro (4) and Belo Horizonte (3).

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 118 verified decision-maker contacts tracked across these 86 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.