Company lists · Data refreshed September 2026

Top 25 Offshore vessel operators based in Brazil

Name: Offshore 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 188 companies tracked

RevenueBase identified 188 offshore vessel operators headquartered in Brazil as of September 2026 and tracks 23,303 professional contacts across them, including 2,638 with verified work emails. Rio De Janeiro is the largest hub.

This list covers offshore 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

188Companies

23,303Contacts tracked

2,638Verified emails

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The 25 largest offshore vessel operators based in Brazil

Ranked by team size

Top 25 of 188 offshore 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 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	Grupo Bravante	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	1,001-5,000	1,592 contacts →
	Indirect evidence “O Grupo Bravante é 100% brasileiro com mais de 60 anos provendo serviços para a indústria de óleo e gás, além de atuar nas áreas de apoio marítimo, apoio portuário, construção e…” Source: RevenueBase Database · checked Sep 20, 2026
5	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
6	Estaleiro Mauá S A	Indirect evidence	Niterói, BrazilHQ checked Sep 20, 2026	1,001-5,000	1,019 contacts →
	Indirect evidence “O MAIS EXPERIENTE ESTALEIRO DO BRASIL O Mauá é o mais experiente e tradicional estaleiro em operação no Brasil com atividades desde 1845.” Source: RevenueBase Database · checked Sep 20, 2026
7	Camorim Serviços Marítimos	Indirect evidence	Niterói, BrazilHQ checked Sep 20, 2026	1,001-5,000	934 contacts →
	Indirect evidence “Somos um hub 360°, onde tradição e inovação se encontram para oferecer soluções completas.” Source: RevenueBase Database · checked Sep 20, 2026
8	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
9	Sistac	Partial evidence	Macaé, BrazilHQ checked Sep 20, 2026	501-1,000	624 contacts →
	Partial evidence “A SISTAC é líder no segmento de inspeção, manutenção e reparo offshore na indústria de óleo e gás no Brasil, através de acesso com embarcações de apoio marítimo, mergulhadores…” Source: RevenueBase Database · checked Sep 20, 2026
10	Sapura Navegação Marítima S.A	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	501-1,000	575 contacts →
	Indirect evidence “Seagems 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
11	Dome Serviços Integrados	Indirect evidence	São João Da Barra, BrazilHQ checked Sep 20, 2026	51-200	329 contacts →
	Indirect evidence “A DOME Serviços Integrados, joint venture entre a GranServices e a Prumo Logística, é uma empresa especializada em soluções logísticas customizadas para o setor de energia.” Source: RevenueBase Database · checked Sep 20, 2026
12	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
13	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
14	Galáxia	Strong evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	501-1,000	211 contacts →
	Strong evidence “Galáxia Marítima is a Brazilian Shipping Company founded in May, 2002, which has the main activity the chartering and operation of Offshore Support Vessels for oil and gas…” Source: RevenueBase Database · checked Sep 20, 2026
15	Compagnie Maritime Monégasque CMM	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	51-200	185 contacts →
	Partial evidence “CMM: Brazil's Aspiring Leader in Sustainable Offshore Operations At CMM, we're on a mission to redefine the offshore industry in Brazil with sustainability at our core.” Source: RevenueBase Database · checked Sep 20, 2026
16	Grupo BOA Praça	Indirect evidence	Vitória, BrazilHQ checked Sep 20, 2026	201-500	147 contacts →
	Indirect evidence “O Grupo Boa Praça é composto por empresas do ramo de comércio e prestação de serviços, que atendem aos segmentos: marítimo, industrial e de construção civil, conforme apresentado…” Source: RevenueBase Database · checked Sep 20, 2026
17	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
18	Zmax Group	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	51-200	117 contacts →
	Indirect evidence “Founded in 2008, Zmax Group is a Brazilian company headquartered in Rio de Janeiro (Visconde de Inhaúma Street, 37/18th floor) and two maritime bases, in São Gonçalo (RJ) and in…” Source: RevenueBase Database · checked Sep 20, 2026
19	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
20	Tiger Rentank DO Brasil	Indirect evidence	Rio Das Ostras, BrazilHQ checked Sep 20, 2026	51-200	102 contacts →
	Indirect evidence “Trabalho bem feito.” Source: RevenueBase Database · checked Sep 20, 2026
21	Petroserv S.A	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	11-50	102 contacts →
	Indirect evidence “PETROSERV was founded in 1972.” Source: RevenueBase Database · checked Sep 20, 2026
22	Rionav	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	51-200	99 contacts →
	Indirect evidence “RIONAV é uma Empresa Brasileira de Navegação, licenciada pela ANTAQ (Agência Nacional de Transportes Aquaviários).” Source: RevenueBase Database · checked Sep 20, 2026
23	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
24	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
25	Brasilamarras	Indirect evidence	Niterói, BrazilHQ checked Sep 20, 2026	51-200	70 contacts →
	Indirect evidence “Operando desde 15 de maio de 1978, A BRASILAMARRAS é o resultado da associação do Grupo Marajó (Brasil) e Vicinay Cadenas S/A (Espanha), apresentando a mesma tecnologia na…” 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 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 vessel operators.
Partial evidence: Its own public description names part of offshore 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 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 188 offshore vessel operators based in Brazil

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Offshore vessel operators based in Brazil at a glance

As of Sep 20, 2026

11.3%Verified-email coverage

124.0Average contacts per company

11-50Median size (employees)

35.1%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

5,001-10,000

10001+

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 188 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 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 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 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 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, 2,638 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 vessel operators by metro

Offshore vessel operators in Rio De Janeiro66

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 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 vessel operators are there based in Brazil?

RevenueBase identified 188 offshore 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 vessel operators?

Rio De Janeiro leads with 66 headquartered companies, followed by Macae (23) and Niteroi (13).

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 2,638 verified decision-maker contacts tracked across these 188 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.