Company lists · Data refreshed September 2026
Top 25 Wastewater consulting firms based in Brazil
RevenueBase identified 1,161 wastewater consulting firms headquartered in Brazil as of September 2026 and tracks 16,599 professional contacts across them, including 2,287 with verified work emails. Sao Paulo is the largest hub.
This list covers wastewater consulting firms 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 29, 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 wastewater consulting firms based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 765 contacts → | ||||
Partial evidence “Em 26 de julho de 1995 foi criada a Telsan, uma empresa de engenharia consultiva que tem o orgulho de ter como missão principal a prestação de serviços diferenciados, visando à…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 540 contacts → | ||||
Indirect evidence “A CTA foi criada em 1995, em Belo Horizonte Minas Gerais, ampliando sua atividade e posicionando sua sede no estado do Rio de Janeiro em Duque de Caxias, próximo ao Pólo…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 500 contacts → | ||||
Indirect evidence “Vital Engenharia Ambiental is an environmental services company based out of R Santa Luzia, 651, 21 Andar Parte, Rio De Janeiro, Rio De Janeiro, Brazil.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 485 contacts → | ||||
Partial evidence “O Grupo Projeta é formado por empresas de engenharia consultiva, que oferece soluções completas e integradas nas áreas de engenharia civil, meio ambiente, saneamento, recursos…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 445 contacts → | ||||
Partial evidence “Somos uma empresa de Engenharia Consultiva, oferecendo serviços para os mercados de energia, petróleo e gás, saneamento e recursos hídricos, transporte, telecomunicações e…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 319 contacts → | ||||
Indirect evidence “A ENGECORPS Engenharia S.A.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 203 contacts → | ||||
Indirect evidence “Desde 1995, a JHE Engenharia desenvolve as melhores soluções na prestação de serviços em engenharia nas áreas de Saneamento e Recursos Hídricos, Habitação, Edificações Públicas e…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 195 contacts → | ||||
Indirect evidence “Somos um grupo empresarial com mais de 20 anos de história e forte atuação nos Estados de São Paulo, Minas Gerais, Goiás e Paraná.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 147 contacts → | ||||
Indirect evidence “Ster Engenharia” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 147 contacts → | ||||
Indirect evidence “Diefra Engenharia E Consultoria is a civil engineering company based out of Anel Rodoviário Celso Mello Azevedo 85, Belo Horizonte, Minas Gerais, Brazil.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 135 contacts → | ||||
Indirect evidence “EBP Brasil, um compromisso de mais de 40 anos com o meio ambiente.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 135 contacts → | ||||
Indirect evidence “A G5 Engenharia é uma empresa de consultoria, projeto e de gerenciamento de implantação de obras de infra-estrutura, atuando principalmente no ramo de energia, mineração…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 130 contacts → | ||||
Indirect evidence “Fundada em 1998, a empresa CARUSO Soluções Ambientais & Tecnológicas se dedica à prestação de serviços e consultoria nas áreas de engenharia e meio ambiente.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 126 contacts → | ||||
Indirect evidence “Com mais de 30 anos de experiência em serviços de consultoria de engenharia, apta a prestar serviços de elaboração de estudos, projetos, gerenciamento de obras e em empreitadas…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 123 contacts → | ||||
Partial evidence “A SENHA ENGENHARIA é uma empresa de engenharia consultiva com origem e foco na área de saneamento.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 116 contacts → | ||||
Indirect evidence “A B&F Dias é referência mundial em soluções para tratamento de águas e efluentes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 104 contacts → | ||||
Partial evidence “Empresa de engenharia consultiva e executiva especializada na área de saneamento básico.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 102 contacts → | ||||
Indirect evidence “Desafios ambientais complexos exigem conhecimento embasado, ciência aplicada e execução precisa.” Source: RevenueBase Database · checked Sep 29, 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: wastewater consulting firms. 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 consulting firms.
- Partial evidence
- Its own public description names part of wastewater consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name wastewater consulting firms. 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 1,161 wastewater consulting firms based in Brazil
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Wastewater consulting firms based in Brazil at a glance
As of Sep 29, 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 1,161 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 consulting firms, 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 consulting firms”. 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 consulting firms), 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 consulting firms, 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, 2,287 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 29, 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 wastewater consulting firms, 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 consulting firms are there based in Brazil?
RevenueBase identified 1,161 wastewater consulting firms 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?
Telsan Engenharia E Serviços S A, headquartered in Belo Horizonte, tops this list with the largest team on record.
Which city has the most wastewater consulting firms?
Sao Paulo leads with 130 headquartered companies, followed by Belo Horizonte (72) and Rio De Janeiro (55).
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 2,287 verified decision-maker contacts tracked across these 1,161 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 29, 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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