Company lists · Data refreshed October 2026

Top 25 Offshore seismic contractors based in Brazil

RevenueBase identified 94 company matches for offshore seismic contractors associated with Brazil as of October 2026 and tracks 9,789 professional contacts across them, including 1,382 with verified work emails. Rio De Janeiro is the largest hub.

This list covers company matches for offshore seismic contractors 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 October 19, 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 Oct 19, 2026 How this list was built
94Companies
9,789Contacts tracked
1,382Verified emails
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The 25 largest offshore seismic contractors based in Brazil

Ranked by team size
Top 25 of 94 company matches for offshore seismic contractors based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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 Oct 19, 20261,001-5,0002,328 contacts →

Exact match

“A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
2Exact matchNiterói, BrazilHQ recorded Oct 19, 20261,001-5,0001,972 contacts →

Exact match

“O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
3Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 2026201-5001,277 contacts →

Exact match

“With more than 50 years of legacy, Maersk Supply Service celebrates a new important milestone: from November 1st, our headquarters are officially located in Brazil.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
4Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 2026201-500338 contacts →

Exact match

“Founded in 2011 by the Gradin family, GranEnergia is an Integrated Offshore Energy Services Company, headquartered in Brazil and the Netherlands.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
5Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 202611-50124 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
6Exact matchMaceió, BrazilHQ recorded Oct 19, 202651-20075 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 2026501-1,00062 contacts →

Exact match

“Solstad Offshore is a company based out of Rua Lauro Muller 116, sl.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
8Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 20261,001-5,00059 contacts →

Exact match

“Environmental Consulting, Licensing & Monitoring for Seismic and Drilling Activities.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
9Exact matchPorto Alegre, BrazilHQ recorded Oct 19, 202611-5043 contacts →

Exact match

“Founded in 1997, the company specialises in the acquisition, processing and interpretation of terrestrial and aquatic geophysical data, working in the areas of Mining…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
10Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 202611-5038 contacts →

Exact match

“Nosso core Business: Survey and Positinging e Soluções Tecnológicas e Inovadoras.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11Exact matchBelo Horizonte, BrazilHQ recorded Oct 19, 202651-20037 contacts →

Exact match

“Com uma equipe de profissionais experientes e especializados, contamos com décadas de expertise em técnicas de sondagem diamantada e sônica.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 2026201-50034 contacts →

Exact match

“A Sea1 Offshore do Brasil S.A.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 202611-5029 contacts →

Exact match

“PETREC is a technology-based company, 100% Brazilian, spin-off of COPPE/UFRJ, with headquarters in the Business Incubator of UFRJ, located inside the Technological Park at Ilha do…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
14Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 202611-5027 contacts →

Exact match

“Solintec is now part of Core Laboratories.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
15Exact matchFlorianópolis, BrazilHQ recorded Oct 19, 202611-5026 contacts →

Exact match

“LTrace is a geosciences technology company that bridges the gap between sophisticated academic research and the practical demands of the energy industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16Exact matchRio Das Ostras, BrazilHQ recorded Oct 19, 202611-5020 contacts →

Exact match

“INVISION GEOPHYSICS is a geoscience technology company committed to innovative solutions seeking effectiveness and agility.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 202651-20014 contacts →

Exact match

“São quatro áreas de atuação: Geotecnia, Geologia, Geofísica e Mergulho Profissional.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
18Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 20261-1012 contacts →

Exact match

“About us In 2018, Kognitus was founded in Rio de Janeiro, Brazil, to facilitate the adoption of AI technologies and accelerate their insertion into the mainstream of subsurface…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19Exact matchRecife, BrazilHQ recorded Oct 19, 202611-5010 contacts →

Exact match

“Iara Systems is a start-up company committed with innovative and reliable solutions for the offshore oil & gas industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20Exact matchSao Paulo, BrazilHQ recorded Oct 19, 202611-5010 contacts →

Exact match

“A Technoblast, estando presente há 28 anos no mercado brasileiro e se tornado uma referência na área de sismografia de detonações em setores como mineração e obras de…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
21Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 202611-509 contacts →

Exact match

“With a massive passion for the innovative technology in the field of offshore surveying and subsea operations WAMS was created as a platform to deliver the best technology to our…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
22Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 20261-108 contacts →

Exact match

“Company specializing in offshore projects, submarine launches and maritime transport.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
23Exact matchRio De Janeiro, BrazilHQ recorded Oct 19, 20261-108 contacts →

Exact match

“Finding the perfect Offshore Unit can be difficult.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
24Exact matchNiterói, BrazilHQ recorded Oct 19, 20261-108 contacts →

Exact match

“Fundada em fevereiro de 2011 com a Razão Social de JAF Serviços Marítimos Ltda, e em janeiro de 2017 seus sócios resolveram mudar o nome da razão social para CS Serviços Marítimos…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
25Exact matchSão Francisco Do Sul, BrazilHQ recorded Oct 19, 202611-506 contacts →

Exact match

“Desde a fundação, a Sub Marine tem como horizonte realizar serviços na área marítima com qualidade.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

Showing 25 of 94 offshore seismic contractors based in Brazil

See the full list, filter by size, metro and specialty, and access 1,382 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore seismic contractors based in Brazil at a glance

As of Oct 19, 2026
14.1%Verified-email coverage
104.1Average contacts per company
11-50Median size (employees)
47.9%Largest-city concentration · Rio De Janeiro
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
34
11-50
32
51-200
12
201-500
7
501-1,000
2
1,001-5,000
7

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 94 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 “offshore seismic contractors” 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 1,382 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 October 19, 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.

Offshore seismic contractors by metro

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 “offshore seismic contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many offshore seismic contractors are there based in Brazil?

RevenueBase identified 94 company matches for offshore seismic contractors associated with Brazil as of October 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?

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

Which city has the most offshore seismic contractors?

Rio De Janeiro leads with 45 company records, followed by Sao Paulo (8) and Macae (5).

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 1,382 professional contacts with verified work emails tracked across these 94 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 October 19, 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.