Company lists · Data refreshed September 2026

Top 25 Hydrogeological survey companies based in Brazil

RevenueBase identified 435 company matches for hydrogeological survey companies associated with Brazil as of September 2026 and tracks 7,143 professional contacts across them, including 1,263 with verified work emails. Belo Horizonte is the largest hub.

This list covers company matches for hydrogeological survey companies associated with Brazil, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
435Companies
7,143Contacts tracked
1,263Verified emails
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The 25 largest hydrogeological survey companies based in Brazil

Ranked by team size
Top 25 of 435 company matches for hydrogeological survey companies based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchRio De Janeiro, BrazilHQ recorded Sep 20, 2026201-500588 contacts →

Exact match

“Sondotécnica was founded in 1954.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 2026501-1,000485 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 2026201-500252 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchParauapebas, BrazilHQ recorded Sep 20, 2026201-500245 contacts →

Exact match

“Há mais de duas décadas, o Grupo Geominas desenvolve soluções técnicas especializadas para engenharia, mineração, infraestrutura e meio ambiente.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchNova Lima, BrazilHQ recorded Sep 20, 2026201-500244 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchSão Paulo, BrazilHQ recorded Sep 20, 202651-200234 contacts →

Exact match

“A WALM Engenharia e Tecnologia Ambiental Ltda.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 2026201-500232 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchBarueri, BrazilHQ recorded Sep 20, 202651-200203 contacts →

Exact match

“Na sua fundação em 1985, o objetivo imediato da empresa era a execução de sondagens a percussão para subsidiar estudos e projetos de fundações, escavações, terraplenos e outras…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchLauro De Freitas, BrazilHQ recorded Sep 20, 2026201-500179 contacts →

Exact match

“A DrillGeo, nos seus mais de 25 anos de experiência no mercado de sondagem, sempre buscou a máxima qualidade e eficiência, trabalhando de forma sustentável e respeito ao meio…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 202651-200147 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchSão Paulo, BrazilHQ recorded Sep 20, 202651-200137 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchNiterói, BrazilHQ recorded Sep 20, 202651-200120 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 2026201-50093 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchFlorianópolis, BrazilHQ recorded Sep 20, 202651-20093 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchPorto Alegre, BrazilHQ recorded Sep 20, 202651-20086 contacts →

Exact match

“For over 20 years, we have developed engineering solutions for the most complex environmental challenges in Brazil and around the world.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 202651-20084 contacts →

Exact match

“Water Services and Technologies is a company specialized in hydrogeology and environmental services, which values technical quality, safety and excellence, always seeking to…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchRio De Janeiro, BrazilHQ recorded Sep 20, 202651-20076 contacts →

Exact match

“TECMA - TECNOLOGIA EM MEIO AMBIENTE LTDA.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 202651-20069 contacts →

Exact match

“Há 36 anos no mercado, a CERN é referência na área de consultoria especializada em meio ambiente e geologia.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchSao Pedro, BrazilHQ recorded Sep 20, 202651-20069 contacts →

Exact match

“Empresa formada por engenheiros, geólogos e técnicos especializados, a Suporte Sondagens e Investigações surge como solução para construtoras, projetistas, concessionárias e…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchSão Carlos - Sp, BrazilHQ recorded Sep 20, 202651-20066 contacts →

Exact match

“Análise de Dados / Investigação Geofísica / RADAR Interferométrico / Monitoramento de Estruturas / Ressonância Microssísmica / Radiometria Gamma / Monitoramento Ambiental / InSAR…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchCuritiba, BrazilHQ recorded Sep 20, 202651-20064 contacts →

Exact match

“A GEOLOC atua a nível nacional no ramo ambiental e civil com uma sólida estrutura operacional apresentando soluções diretas e objetivas, oferecendo um corpo técnico formado por…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchSao Paulo, BrazilHQ recorded Sep 20, 202651-20064 contacts →

Exact match

“A REGEA - Geologia, Engenharia e Estudos Ambientais, empresa de consultoria com mais de 15 anos de atuação no mercado, está capacitada para executar projetos nas áreas de…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 202651-20062 contacts →

Exact match

“A Tec3 é uma empresa de engenharia de projetos especializada em recursos hídricos e geotecnia aplicados aos setores de mineração, hidroenergia, óleo e gás.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchBelo Horizonte, BrazilHQ recorded Sep 20, 202651-20060 contacts →

Exact match

“Realizamos estudos e elaboramos projetos nas áreas de Engenharia Hídrica; Gestão Estratégica e Institucional; Meio Ambiente e Socioeconomia.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchSanto André, BrazilHQ recorded Sep 20, 202611-5040 contacts →

Exact match

“A Ambsolution é uma empresa de engenharia ambiental, atuante nas áreas: • Avaliação ambiental • Gestão ambiental • Abastecimento e tratamento de água, drenagem e tratamento de…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 435 hydrogeological survey companies based in Brazil

See the full list, filter by size, metro and specialty, and access 1,263 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogeological survey companies based in Brazil at a glance

As of Sep 20, 2026
17.7%Verified-email coverage
16.4Average contacts per company
1-10Median size (employees)
14.0%Largest-city concentration · Belo Horizonte
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
237
11-50
126
51-200
52
201-500
11
501-1,000
4
1,001-5,000
1

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 435 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Brazil whose business descriptions match “hydrogeological survey companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,263 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “hydrogeological survey companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrogeological survey companies are there based in Brazil?

RevenueBase identified 435 company matches for hydrogeological survey companies associated with Brazil as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Sondotécnica Engenharia tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hydrogeological survey companies?

Belo Horizonte leads with 61 company records, followed by Sao Paulo (43) and Porto Alegre (18).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,263 professional contacts with verified work emails tracked across these 435 companies; direct dials are available where recorded.

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 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.