Company lists · Data refreshed September 2026

Top 25 Marine geotechnical firms based in Brazil

Name: Marine geotechnical firms based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 680 companies tracked

RevenueBase identified 680 marine geotechnical firms headquartered in Brazil as of September 2026 and tracks 14,860 professional contacts across them, including 2,968 with verified work emails. Sao Paulo is the largest hub.

This list covers marine geotechnical 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 20, 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 20, 2026 86% judged on-target in blind review

680Companies

14,860Contacts tracked

2,968Verified emails

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The 25 largest marine geotechnical firms based in Brazil

Ranked by team size

Top 25 of 680 marine geotechnical firms based in Brazil, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to marine geotechnical firms: 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	Grupo CBO	Indirect evidence	Niterói, BrazilHQ checked Sep 20, 2026	1,001-5,000	1,847 contacts →
	Indirect evidence “O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Source: RevenueBase Database · checked Sep 20, 2026
2	BELOV	Indirect evidence	Matriz, BrazilHQ checked Sep 20, 2026	1,001-5,000	1,108 contacts →
	Indirect evidence “A Belov Engenharia foi criada em 1981 em Salvador/BA, pelo engenheiro Aleixo Belov, que à época desfrutava de uma experiência de 15 anos de participação na condução das maiores…” Source: RevenueBase Database · checked Sep 20, 2026
3	Sondotécnica Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	201-500	588 contacts →
	Indirect evidence “Sondotécnica was founded in 1954.” Source: RevenueBase Database · checked Sep 20, 2026
4	Chammas Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	201-500	418 contacts →
	Indirect evidence “A Chammas acredita que a engenharia aplicada com rigor e seriedade contribui para um mundo mais seguro e sustentável; Desenvolvemos soluções eficazes, combinando expertise humana…” Source: RevenueBase Database · checked Sep 20, 2026
5	Progeo Engenharia Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 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 20, 2026
6	Tecnogeo Ground	Indirect evidence	Cotia, BrazilHQ checked Sep 20, 2026	1,001-5,000	355 contacts →
	Indirect evidence “A Tecnogeo Ground é uma empresa brasileira, líder de mercado em serviços de Geotecnia, Fundações Pesadas e Melhoramento de Solos.” Source: RevenueBase Database · checked Sep 20, 2026
7	BVP Geotecnia E Hidrotecnia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	201-500	286 contacts →
	Indirect evidence “Somos a BVP Geotecnia e Hidrotecnia.” Source: RevenueBase Database · checked Sep 20, 2026
8	Global Ship Port Service	Indirect evidence	Salvador, BrazilHQ checked Sep 20, 2026	501-1,000	268 contacts →
	Indirect evidence “Somos a Global Ship, uma empresa líder em operações marítimas e portuárias.” Source: RevenueBase Database · checked Sep 20, 2026
9	Walm BH Engenharia	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	201-500	252 contacts →
	Partial 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 20, 2026
10	Grupo Geominas	Indirect evidence	Parauapebas, BrazilHQ checked Sep 20, 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 20, 2026
11	Serviços Marítimos Continental	Indirect evidence	Macaé, BrazilHQ checked Sep 20, 2026	201-500	238 contacts →
	Indirect evidence “Com mais de 45 anos de história, realizamos com absoluto sucesso diversos serviços nos mais variados pontos do país, sempre com produtividade e excelência em todas as obras.” Source: RevenueBase Database · checked Sep 20, 2026
12	DF Engineering	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	201-500	232 contacts →
	Partial evidence “Soil and Rock Engineering Projects (Geotechnics), Geology and Water Resources.” Source: RevenueBase Database · checked Sep 20, 2026
13	Planave S.A.	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	501-1,000	218 contacts →
	Indirect evidence “Empresa atua em Engenharia Consultiva, na execução de estudos, projetos e acompanhamento de obras.” Source: RevenueBase Database · checked Sep 20, 2026
14	Grupo Alphageos	Indirect evidence	Barueri, BrazilHQ checked Sep 20, 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 20, 2026
15	Engemap Engenharia E Aerolevantamento	Indirect evidence	Assis, BrazilHQ checked Sep 20, 2026	51-200	201 contacts →
	Indirect evidence “Com uma visão mais ampla de um empreendimento de engenharia, desde o projeto até a operação, a Engemap oferece soluções de engenharia civil e geotecnologias a cada uma das etapas…” Source: RevenueBase Database · checked Sep 20, 2026
16	Drillgeo Geologia E Sondagens S.A	Indirect evidence	Lauro De Freitas, BrazilHQ checked Sep 20, 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 20, 2026
17	Rpeotta	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	51-200	169 contacts →
	Indirect evidence “A RPEOTTA tem por objetivo a prestação de serviços pautados no compromisso com a excelência em engenharia consultiva em Projetos (Conceitual, Básica e Detalhada), estudo e…” Source: RevenueBase Database · checked Sep 20, 2026
18	Pattrol Investigações Geotécnicas Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 20, 2026	51-200	163 contacts →
	Indirect evidence “A PATTROL foi fundada em 1961 pelo engenheiro civil Haroldo de Carvalho Castro para estudar e elaborar projetos rodoviários, constituindo um currículo que inclui projetos de…” Source: RevenueBase Database · checked Sep 20, 2026
19	Caruso Soluções Ambientais & Tecnológicas	Indirect evidence	Florianópolis, BrazilHQ checked Sep 20, 2026	51-200	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 20, 2026
20	3geo Consultoria	Partial evidence	Niterói, BrazilHQ checked Sep 20, 2026	51-200	120 contacts →
	Partial evidence “3Geo Consulting is a geotechnical and environmental consulting company.” Source: RevenueBase Database · checked Sep 20, 2026
21	Projeta Group	Indirect evidence	São Luís, BrazilHQ checked Sep 20, 2026	51-200	113 contacts →
	Indirect evidence “A Projeta Consultoria é uma empresa de engenharia consultiva, engenharia de projetos, de topografia e geotecnia e recuperação estrutural constituída em 1998, que presta serviços…” Source: RevenueBase Database · checked Sep 20, 2026
22	Damasco Penna Engenharia Geotécnica	Indirect evidence	Barueri, BrazilHQ checked Sep 20, 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 20, 2026
23	OSX	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	11-50	105 contacts →
	Indirect evidence “Somos a OSX, empresa do Grupo EBX que atua na indústria naval e offshore, oferecendo soluções integradas de engenharia, construção, fretamento, e serviços de Operação e Manutenção…” Source: RevenueBase Database · checked Sep 20, 2026
24	Brasfond	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	201-500	101 contacts →
	Indirect evidence “The Brasfond Group has had a combined 50 plus years of experience in the development of modern and innovative technologies.” Source: RevenueBase Database · checked Sep 20, 2026
25	Dratec Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	51-200	97 contacts →
	Indirect evidence “A Dratec Engenharia Ltda.” Source: RevenueBase Database · checked Sep 20, 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: marine geotechnical 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 marine geotechnical firms.
Partial evidence: Its own public description names part of marine geotechnical firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine geotechnical 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 680 marine geotechnical firms based in Brazil

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Marine geotechnical firms based in Brazil at a glance

As of Sep 20, 2026

20.0%Verified-email coverage

21.9Average contacts per company

11-50Median size (employees)

13.2%Largest-city concentration · Sao Paulo

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

292

11-50

236

51-200

113

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 680 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 marine geotechnical 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 “marine geotechnical 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 marine geotechnical 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 marine geotechnical 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, 2,968 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 20, 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.

Marine geotechnical firms by metro

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 marine geotechnical 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 marine geotechnical firms are there based in Brazil?

RevenueBase identified 680 marine geotechnical 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?

Grupo CBO, headquartered in Niteroi, tops this list with the largest team on record.

Which city has the most marine geotechnical firms?

Sao Paulo leads with 90 headquartered companies, followed by Rio De Janeiro (89) and Belo Horizonte (71).

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 2,968 verified decision-maker contacts tracked across these 680 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 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 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.