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Company lists · Data refreshed September 2026

Top 25 Hydrogeological consulting firms based in Brazil

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 1,144 companies tracked

RevenueBase identified 1,144 hydrogeological consulting firms headquartered in Brazil as of September 2026 and tracks 16,461 professional contacts across them, including 3,828 with verified work emails and 270 with mobile numbers. Belo Horizonte is the largest hub.

This list covers hydrogeological 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
1,144Companies
16,461Contacts tracked
3,828Verified emails
270Mobile numbers
Unlock all 1,144 companies Free signup · no credit card · 500 free credits

The 25 largest hydrogeological consulting firms based in Brazil

Ranked by team size
Top 25 of 1,144 hydrogeological consulting firms based in Brazil, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names hydrogeological consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Sondotécnica EngenhariaIndirect evidence
Rio De Janeiro, BrazilHQ checked Sep 3, 2026201-500585

“Sondotécnica was founded in 1954.”

Source: company website · checked Sep 3, 2026
2
ERG EngenhariaIndirect evidence
Belo Horizonte, BrazilHQ checked Sep 3, 2026201-500476

“Empresa mineira, fundada em 1988, a ERG Engenharia mantém vivo o seu ideal de participar da construção de um mundo melhor e sustentável.”

Source: company website · checked Sep 3, 2026
3
Sete Soluções E Tecnologia AmbientalIndirect evidence
Belo Horizonte, BrazilHQ checked Sep 3, 2026501-1,000444

“Somos uma das maiores consultorias em meio ambiente do Brasil, fundada em 1997, contando, hoje, com uma equipe técnica multidisciplinar permanente, que congrega profissionais das…”

Source: company website · checked Sep 3, 2026
4
NIP DO BrasilPartial evidence
Vitória, BrazilHQ checked Sep 3, 2026501-1,000442

“Somos uma empresa de Engenharia Consultiva, oferecendo serviços para os mercados de energia, petróleo e gás, saneamento e recursos hídricos, transporte, telecomunicações e…”

Source: company website · checked Sep 3, 2026
5
Grupo EPIndirect evidence
Guarulhos, BrazilHQ checked Sep 3, 2026501-1,000436

“Identificamos e solucionamos problemas relacionados ao tratamento de água e efluentes, reúso, dessalinização e análises ambientais para indústrias, consultorias ambientais e…”

Source: company website · checked Sep 3, 2026
6
Progeo Engenharia LtdaIndirect evidence
Belo Horizonte, BrazilHQ checked Sep 3, 2026501-1,000401

“Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.”

Source: company website · checked Sep 3, 2026
7
EngecorpsIndirect evidence
Barueri, BrazilHQ checked Sep 3, 2026201-500320

“A ENGECORPS Engenharia S.A.”

Source: company website · checked Sep 3, 2026
8
BVP Geotecnia E HidrotecniaIndirect evidence
Belo Horizonte, BrazilHQ checked Sep 3, 2026201-500287

“Somos a BVP Geotecnia e Hidrotecnia.”

Source: company website · checked Sep 3, 2026
9
Walm BH EngenhariaIndirect evidence
Belo Horizonte, BrazilHQ checked Sep 3, 2026201-500252

“Walm BH Engenharia is a company that operates in the areas of Geotechnical Engineering, Hydrology, Hydraulics, Hydrogeology, Engineering Geology, Rock Mechanics, and Environment &…”

Source: company website · checked Sep 3, 2026
10
Pimenta DE Ávila ConsultoriaIndirect evidence
Nova Lima, BrazilHQ checked Sep 3, 2026201-500243

“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: company website · checked Sep 3, 2026
11
Grupo GeominasIndirect evidence
Parauapebas, BrazilHQ checked Sep 3, 2026201-500243

“O Grupo Geominas atua em todo o país, com estrutura robusta e equipe multidisciplinar altamente qualificada.”

Source: company website · checked Sep 3, 2026
12
Walm Engenharia E Tecnologia AmbientalIndirect evidence
São Paulo, BrazilHQ checked Sep 3, 202651-200235

“A WALM Engenharia e Tecnologia Ambiental Ltda.”

Source: company website · checked Sep 3, 2026
13
GAP SsmaIndirect evidence
Goiania, BrazilHQ checked Sep 3, 2026201-500234

“A GAP Ambiental oferece serviços para pequenas, médias e grandes empresas em diversas áreas que vão desde o licenciamento ao acompanhamento da execução de projetos.”

Source: company website · checked Sep 3, 2026
14
DF EngineeringIndirect evidence
Belo Horizonte, BrazilHQ checked Sep 3, 2026201-500233

“Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.”

Source: company website · checked Sep 3, 2026
15
MRS AmbientalIndirect evidence
Brasilia, BrazilHQ checked Sep 3, 202651-200192

“MRS Estudos Ambientais Ltda began its activities on April 2, 1992.”

Source: company website · checked Sep 3, 2026
16
Dossel AmbientalIndirect evidence
Brasilia, BrazilHQ checked Sep 3, 202651-200152

“Somamos a experiência e a agilidade que você precisa para desenvolver os estudos necessários para o licenciamento ambiental e gestão do seu empreendimento.”

Source: company website · checked Sep 3, 2026
17
Mdgeo Hidrogeologia E Meio AmbienteIndirect evidence
Belo Horizonte, BrazilHQ checked Sep 3, 202651-200147

“São mais de 1,2 mil projetos desenvolvidos nos setores industriais, de mineração, construção civil, abastecimento e agronegócio.”

Source: company website · checked Sep 3, 2026
18
EBP BrasilIndirect evidence
Sao Paulo, BrazilHQ checked Sep 3, 202651-200137

“EBP Brasil, um compromisso de mais de 40 anos com o meio ambiente.”

Source: company website · checked Sep 3, 2026
19
CPEAIndirect evidence
São Paulo, BrazilHQ checked Sep 3, 202651-200136

“CPEA - Consultoria Paulista de Estudos Ambientais is a limited liability company, founded on October 15th, with headquarter in the city of São Paulo.”

Source: company website · checked Sep 3, 2026
20
Senha Engenharia & UrbanismoPartial evidence
Goiania, BrazilHQ checked Sep 3, 2026201-500123

“A SENHA ENGENHARIA é uma empresa de engenharia consultiva com origem e foco na área de saneamento.”

Source: company website · checked Sep 3, 2026
21
3geo ConsultoriaPartial evidence
Niterói, BrazilHQ checked Sep 3, 202651-200121

“3Geo Consulting is a geotechnical and environmental consulting company.”

Source: company website · checked Sep 3, 2026
22
Geoestável Consultoria E Projetos LtdaIndirect evidence
Belo Horizonte, BrazilHQ checked Sep 3, 2026201-50094

“GEOESTÁVEL CONSULTORIA E PROJETOS Com sede própria na cidade mineira de Belo Horizonte, a empresa atua em todo território nacional e internacional.”

Source: company website · checked Sep 3, 2026
23
MPB EngenhariaIndirect evidence
Florianopolis, BrazilHQ checked Sep 3, 202651-20094

“A MPB Engenharia é uma empresa catarinense, sediada com matriz em Florianópolis e Filial com escritórios em Brasília.”

Source: company website · checked Sep 3, 2026
24
Rhama Consultoria AmbientalIndirect evidence
Porto Alegre, BrazilHQ checked Sep 3, 202651-20086

“A Rhama atua em âmbito nacional e internacional, em diferentes aspectos relacionados ao meio ambiente.”

Source: company website · checked Sep 3, 2026
25
Agroflor Engenharia E Meio AmbienteIndirect evidence
Vicosa, BrazilHQ checked Sep 3, 202651-20086

“A Agroflor Engenharia e Meio Ambiente atua no mercado de consultoria e prestação de serviços ambientais nos segmentos: florestal, mineral e de construção civil, infraestrutura…”

Source: company website · checked Sep 3, 2026

Showing 25 of 1,144 hydrogeological consulting firms based in Brazil

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Hydrogeological consulting firms based in Brazil at a glance

As of Sep 3, 2026
1-10Median size (employees)
Belo HorizonteLargest hub · 157 HQs
270Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
715
11-50
285
51-200
97
201-500
24
501-1,000
8

Verified emails by last verification

0–30
0
31–60
447
61–90
2,201
90–180
1,164
180+
16

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 hydrogeological consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Brazil whose own description of what they do matches “hydrogeological consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among hydrogeological 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 an evidence 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, 3,828 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 3, 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.

Hydrogeological consulting firms by metro

  • Hydrogeological consulting firms in Belo Horizonte157
  • Hydrogeological consulting firms in Sao Paulo120
  • Hydrogeological consulting firms in Rio De Janeiro54
  • Hydrogeological consulting firms in Curitiba44
  • Hydrogeological consulting firms in Porto Alegre34

Frequently asked

How many hydrogeological consulting firms are there based in Brazil?

RevenueBase identified 1,144 hydrogeological 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?

Sondotécnica Engenharia, headquartered in Rio De Janeiro, tops this list with the largest team on record.

Which city has the most hydrogeological consulting firms?

Belo Horizonte leads with 157 headquartered companies, followed by Sao Paulo (120) and Rio De Janeiro (54).

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 3,828 verified decision-maker contacts tracked across these 1,144 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 3, 2026.

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Related lists

Browse: Companies home · All Brazil lists · All Hydrogeological consulting firms lists · New lists

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 SmartSearch, 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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