Company lists · Data refreshed September 2026

Top 25 Subsurface exploration services based in Brazil

Name: Subsurface exploration services based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 375 companies tracked

RevenueBase identified 375 subsurface exploration services headquartered in Brazil as of September 2026 and tracks 5,301 professional contacts across them, including 627 with verified work emails. Sao Paulo is the largest hub.

This list covers subsurface exploration services 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 22, 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 22, 2026 86% judged on-target in blind review

375Companies

5,301Contacts tracked

627Verified emails

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The 25 largest subsurface exploration services based in Brazil

Ranked by team size

Top 25 of 375 subsurface exploration services based in Brazil, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to subsurface exploration services: 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	Progeo Engenharia Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	501-1,000	400 contacts →
	Indirect evidence “Fundada em 1981, a empresa é focada na execução de serviços especiais de geologia, engenharia geotécnica e recuperação de estruturas.” Source: RevenueBase Database · checked Sep 22, 2026
2	Walm BH Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	201-500	252 contacts →
	Indirect evidence “Walm BH Engenharia is a company that operates in the areas of Geotechnical Engineering, Hydrology, Hydraulics, Hydrogeology, Engineering Geology, Rock Mechanics, and Environment &…” Source: RevenueBase Database · checked Sep 22, 2026
3	Grupo Geominas	Indirect evidence	Parauapebas, BrazilHQ checked Sep 22, 2026	201-500	245 contacts →
	Indirect evidence “Há mais de duas décadas, o Grupo Geominas desenvolve soluções técnicas especializadas para engenharia, mineração, infraestrutura e meio ambiente.” Source: RevenueBase Database · checked Sep 22, 2026
4	DF Engineering	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	201-500	232 contacts →
	Indirect evidence “Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Source: RevenueBase Database · checked Sep 22, 2026
5	Grupo Alphageos	Indirect evidence	Barueri, BrazilHQ checked Sep 22, 2026	51-200	203 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
6	Drillgeo Geologia E Sondagens S.A	Indirect evidence	Lauro De Freitas, BrazilHQ checked Sep 22, 2026	201-500	179 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
7	Damasco Penna Engenharia Geotécnica	Indirect evidence	Barueri, BrazilHQ checked Sep 22, 2026	51-200	105 contacts →
	Indirect evidence “Com 40 anos de serviços prestados, a Damasco Penna é hoje referência no mercado de engenharia geotécnica, atuando tanto na prestação de serviços de projeto e consultoria como em…” Source: RevenueBase Database · checked Sep 22, 2026
8	Geosonda S.A	Indirect evidence	Cotia, BrazilHQ checked Sep 22, 2026	201-500	97 contacts →
	Indirect evidence “A GEOSONDA é uma das mais completas empresas do setor de prestação de serviços especiais de engenharia.” Source: RevenueBase Database · checked Sep 22, 2026
9	Servdrill Perfuração E Sondagem	Indirect evidence	Parauapebas, BrazilHQ checked Sep 22, 2026	201-500	89 contacts →
	Indirect evidence “A Servdrill é uma prestadora de serviços de perfuração e sondagem geológica especializada em prospecção mineral.” Source: RevenueBase Database · checked Sep 22, 2026
10	Suporte	Indirect evidence	Sao Pedro, BrazilHQ checked Sep 22, 2026	51-200	69 contacts →
	Indirect evidence “Empresa formada por engenheiros, geólogos e técnicos especializados, a Suporte Sondagens e Investigações surge como solução para construtoras, projetistas, concessionárias e…” Source: RevenueBase Database · checked Sep 22, 2026
11	Geodeep	Indirect evidence	Maceió, BrazilHQ checked Sep 22, 2026	51-200	67 contacts →
	Indirect evidence “A GEODEEP é uma empresa especializada em diversos tipos de serviços onshore, offshore e zona de transição, em especial, levantamentos de dados geofísicos, geológicos e geotécnicos.” Source: RevenueBase Database · checked Sep 22, 2026
12	Master Drilling Brasil Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	201-500	66 contacts →
	Indirect evidence “Sediada em Belo Horizonte-MG, a Master Drilling Brasil é parte integrante do Grupo Master Drilling, um dos maiores fornecedores de serviços de perfuração e sondagem de rocha do…” Source: RevenueBase Database · checked Sep 22, 2026
13	EXE Mineral	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	501-1,000	65 contacts →
	Indirect evidence “Excelência Multiplicada em Execução no Setor Mineral” Source: RevenueBase Database · checked Sep 22, 2026
14	Geoloc Engenharia E Geologia	Indirect evidence	Curitiba, BrazilHQ checked Sep 22, 2026	51-200	64 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
15	REGEA	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 22, 2026	51-200	64 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
16	Geoprojetos Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 22, 2026	51-200	63 contacts →
	Indirect evidence “A Geoprojetos é uma empresa especializada em Geotecnia que tem sua história construída ao longo quase 40 anos de experiência onde tem acumulado um vasto acervo técnico com a…” Source: RevenueBase Database · checked Sep 22, 2026
17	Geonew Consultoria EM Geologia, Mineração E Meio Ambiente	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	51-200	49 contacts →
	Indirect evidence “A Geonew Consultoria e Serviços Geológicos Ltda é um empresa nova no mercado de prestação de serviços de geologia e exploração mineral, mas que conta com profissionais sêniores…” Source: RevenueBase Database · checked Sep 22, 2026
18	AFC Geofísica	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 22, 2026	11-50	40 contacts →
	Indirect evidence “Founded in 1997, the company specialises in the acquisition, processing and interpretation of terrestrial and aquatic geophysical data, working in the areas of Mining…” Source: RevenueBase Database · checked Sep 22, 2026
19	LTW Engenharia E Geologia Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	51-200	37 contacts →
	Indirect evidence “A LTW iniciou suas atividades em 1994 com o objetivo de prestar serviços nas áreas de geologia, engenharia e meio ambiente.” Source: RevenueBase Database · checked Sep 22, 2026
20	Horizonte Mineiro Serviços Geológicos Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	51-200	36 contacts →
	Indirect evidence “Com uma equipe de profissionais experientes e especializados, contamos com décadas de expertise em técnicas de sondagem diamantada e sônica.” Source: RevenueBase Database · checked Sep 22, 2026
21	Arcos Engenharia DE Solos	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	11-50	31 contacts →
	Indirect evidence “Na Arcos Engenharia de Solos, somos apaixonados por construir soluções robustas e confiáveis, desenvolvendo tecnologias eficazes que trazem mais segurança e economia para as obras…” Source: RevenueBase Database · checked Sep 22, 2026
22	Brás Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 22, 2026	11-50	28 contacts →
	Indirect evidence “A Brás Engenharia tem como objetivo compreender as necessidades dos clientes, fornecendo-lhes serviços que vão ao encontro delas.” Source: RevenueBase Database · checked Sep 22, 2026
23	Core Lab-Solintec	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 22, 2026	11-50	26 contacts →
	Indirect evidence “Solintec is now part of Core Laboratories.” Source: RevenueBase Database · checked Sep 22, 2026
24	Sondeq	Indirect evidence	São Paulo, BrazilHQ checked Sep 22, 2026	51-200	24 contacts →
	Indirect evidence “Fabricação e comercialização de equipamentos e ferramentas para sondagem mineral e geotecnia.” Source: RevenueBase Database · checked Sep 22, 2026
25	Geoprova	Indirect evidence	Campinas, BrazilHQ checked Sep 22, 2026	51-200	21 contacts →
	Indirect evidence “A Geoprova Engenharia, Ensaios e Monitoramento é uma empresa especializada em serviços nas áreas de geotecnia e fundações com foco na execução de ensaios tecnológicos e de…” Source: RevenueBase Database · checked Sep 22, 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: subsurface exploration services. 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 subsurface exploration services.
Partial evidence: Its own public description names part of subsurface exploration services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subsurface exploration services. 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 375 subsurface exploration services based in Brazil

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Subsurface exploration services based in Brazil at a glance

As of Sep 22, 2026

11.8%Verified-email coverage

14.1Average contacts per company

11-50Median size (employees)

14.9%Largest-city concentration · Sao Paulo

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

176

11-50

123

51-200

201-500

501-1,000

1,001-5,000

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 375 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 subsurface exploration services, 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 “subsurface exploration services”. 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 subsurface exploration services), 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 subsurface exploration services, 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, 627 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 22, 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.

Subsurface exploration services by metro

Subsurface exploration services in Sao Paulo56
Subsurface exploration services in Belo Horizonte51

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 subsurface exploration services, 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 subsurface exploration services are there based in Brazil?

RevenueBase identified 375 subsurface exploration services 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?

Progeo Engenharia Ltda, headquartered in Belo Horizonte, tops this list with the largest team on record.

Which city has the most subsurface exploration services?

Sao Paulo leads with 56 headquartered companies, followed by Belo Horizonte (51) and Rio De Janeiro (21).

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 627 verified decision-maker contacts tracked across these 375 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 22, 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.