Company lists · Data refreshed September 2026

Top 25 Offshore drilling vessel operators based in Brazil

Name: Offshore drilling vessel operators based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 72 companies tracked

RevenueBase identified 72 offshore drilling vessel operators headquartered in Brazil as of September 2026 and tracks 15,211 professional contacts across them, including 1,811 with verified work emails. Rio De Janeiro is the largest hub.

This list covers offshore drilling vessel operators 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

72Companies

15,211Contacts tracked

1,811Verified emails

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The 25 largest offshore drilling vessel operators based in Brazil

Ranked by team size

Top 25 of 72 offshore drilling vessel operators 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 offshore drilling vessel operators: 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	Bram Offshore	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	1,001-5,000	2,922 contacts →
	Partial evidence “Somos a Bram Offshore Transportes Marítimos, a maior empresa representante do Grupo Edison Chouest Offshore no Brasil, reconhecida como o fornecedor de soluções de transporte…” Source: RevenueBase Database · checked Sep 20, 2026
2	OCYAN	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	1,001-5,000	2,427 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
3	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
4	Maersk Supply Service	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	201-500	1,407 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
5	Norskan Offshore	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	501-1,000	729 contacts →
	Partial evidence “NorSkan Offshore is a Brazilian company owned by Norwegian Group DOF, second largest Norwegian investor in Brazil.” Source: RevenueBase Database · checked Sep 20, 2026
6	OIL States Brasil	Indirect evidence	Macaé, BrazilHQ checked Sep 20, 2026	1,001-5,000	309 contacts →
	Indirect evidence “Oil States Brasil Macaé Facility is the 24/7 ONE STOP SHOP, with Engineering, Project Management, Machinery/Fabrication, Specialized Welding, Cladding, TSA, Testing, segregated…” Source: RevenueBase Database · checked Sep 20, 2026
7	Granenergia	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	201-500	304 contacts →
	Partial evidence “Founded in 2011 by the Gradin family, GranEnergia is an Integrated Offshore Energy Services Company, headquartered in Brazil and the Netherlands.” Source: RevenueBase Database · checked Sep 20, 2026
8	Aasj Serviços Industriais	Partial evidence	Macaé, BrazilHQ checked Sep 20, 2026	501-1,000	139 contacts →
	Partial evidence “Fundada em 2012, a AASJ Manutenção e Reparo Offshore foi idealizada para apresentar ao mercado uma solução integrada em execução de grandes projetos portuários, visando a…” Source: RevenueBase Database · checked Sep 20, 2026
9	OSX	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	11-50	105 contacts →
	Partial 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
10	Marlin Navegação S. A	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	51-200	93 contacts →
	Indirect evidence “Marlin Navegacao S.” Source: RevenueBase Database · checked Sep 20, 2026
11	Asgaard Bourbon Navegação	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	201-500	86 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
12	Geodeep	Partial evidence	Maceió, BrazilHQ checked Sep 20, 2026	51-200	67 contacts →
	Partial 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 20, 2026
13	Solstad Offshore	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	501-1,000	41 contacts →
	Partial evidence “Solstad Offshore is a company based out of Rua Lauro Muller 116, sl.” Source: RevenueBase Database · checked Sep 20, 2026
14	Underocean Serviços Maritimos	Partial evidence	Macaé, BrazilHQ checked Sep 20, 2026	51-200	35 contacts →
	Partial evidence “UNDEROCEAN operates in the Oil & Gas sector offering offshore project management services and ROV solutions, including equipment rental, maintenance, underwater inspection…” Source: RevenueBase Database · checked Sep 20, 2026
15	Sea1 Offshore DO Brasil S.A	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	201-500	33 contacts →
	Partial evidence “A Sea1 Offshore do Brasil S.A.” Source: RevenueBase Database · checked Sep 20, 2026
16	Highbras	Strong evidence	Rio Das Ostras, BrazilHQ checked Sep 20, 2026	11-50	30 contacts →
	Strong evidence “Since 1994 in the offshore market, HIGHBRAS stands out in providing equipment maintenance/inspection services for vessels and platforms” Source: RevenueBase Database · checked Sep 20, 2026
17	Navcon Engenharia	Partial evidence	Jacareí, BrazilHQ checked Sep 20, 2026	11-50	26 contacts →
	Partial evidence “Navcon Engenharia is a Offshore Engineering company based out of Rodovia Geraldo Scavone, 2080 Jd Califórnia Galpão 25 - CEP 12305-490, Jacareí, São Paulo, Brazil.” Source: RevenueBase Database · checked Sep 20, 2026
18	Sapura Navegação Marítima S.A	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	501-1,000	23 contacts →
	Indirect evidence “Sapura is a Brazilian company specialized in subsea services, a joint venture between two international key players in their markets, Paratus Energy and Sapura Energy.” Source: RevenueBase Database · checked Sep 20, 2026
19	Bluedge Hydraulics	Strong evidence	Macaé, BrazilHQ checked Sep 20, 2026	11-50	11 contacts →
	Strong evidence “Specializing in the repair of hydraulic and mechanical equipment, as well as pressure control systems, for offshore and onshore drilling and production units.” Source: RevenueBase Database · checked Sep 20, 2026
20	Tecnoil	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “TECNOIL is an oil & energy company based out of Brazil.” Source: RevenueBase Database · checked Sep 20, 2026
21	Industrias FAP DO Brasil	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
22	Blue Amazon Shipping Projects S.A	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “Company specializing in offshore projects, submarine launches and maritime transport.” Source: RevenueBase Database · checked Sep 20, 2026
23	SUB Marine Serviços Ltda	Indirect evidence	São Francisco Do Sul, BrazilHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Desde a fundação, a Sub Marine tem como horizonte realizar serviços na área marítima com qualidade.” Source: RevenueBase Database · checked Sep 20, 2026
24	MCP Marine	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “A MCP Marine é especializada em soluções para os setores offshore e naval, atuando com assistência técnica especializada e fornecimento de soluções para embarcações e plataformas.” Source: RevenueBase Database · checked Sep 20, 2026
25	Atlântico Offshore	Partial evidence	Macaé, BrazilHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “Offshore and Onshore Solutions.” 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: offshore drilling vessel operators. 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 offshore drilling vessel operators.
Partial evidence: Its own public description names part of offshore drilling vessel operators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore drilling vessel operators. 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 72 offshore drilling vessel operators based in Brazil

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Offshore drilling vessel operators based in Brazil at a glance

As of Sep 20, 2026

11.9%Verified-email coverage

211.3Average contacts per company

11-50Median size (employees)

38.9%Largest-city concentration · Rio De Janeiro

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 72 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 offshore drilling vessel operators, 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 “offshore drilling vessel operators”. 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 offshore drilling vessel operators), 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 offshore drilling vessel operators, 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, 1,811 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.

Offshore drilling vessel operators by metro

Offshore drilling vessel operators in Rio De Janeiro28

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 offshore drilling vessel operators, 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 offshore drilling vessel operators are there based in Brazil?

RevenueBase identified 72 offshore drilling vessel operators 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?

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

Which city has the most offshore drilling vessel operators?

Rio De Janeiro leads with 28 headquartered companies, followed by Macae (18) and Niteroi (2).

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 1,811 verified decision-maker contacts tracked across these 72 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.