Company lists · Data refreshed September 2026
Top 25 Subsea intervention service providers based in Brazil
RevenueBase identified 103 subsea intervention service providers headquartered in Brazil as of September 2026 and tracks 9,266 professional contacts across them, including 1,587 with verified work emails. Rio De Janeiro is the largest hub.
This list covers subsea intervention service providers 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.
The 25 largest subsea intervention service providers based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,847 contacts → | ||||
Indirect evidence “O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 624 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 575 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 304 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 195 contacts → | ||||
Partial evidence “Presente no setor de Petróleo e Gás desde 2009, somos uma empresa de serviços competente e confiável, focada em fornecer engenheiros subsea altamente qualificados para garantir a…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 127 contacts → | ||||
Indirect evidence “A Oilequip Produtos e Serviços Ltda.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 85 contacts → | ||||
Partial evidence “SIMEROS is a Brazilian engineering company specialized in developing high-performance solutions for the subsea oil and gas sector, with a focus on SURF (Subsea Umbilicals, Risers…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 72 contacts → | ||||
Indirect evidence “We are a company that offers advanced technology solutions in the Oil and Gas area, carrying out hydrographic surveys using ROV, AUV, USV and conventional surveys, analyzing…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 67 contacts → | ||||
Indirect evidence “A RCS Subaquática é uma empresa de mergulho e soluções subaquáticas, criada por engenheiros, técnicos e mergulhadores preocupados com a segurança nas operações de mergulho e com a…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 60 contacts → | ||||
Partial evidence “IKM Subsea is a market leader in the provision of turnkey ROV and subsea operation services.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 47 contacts → | ||||
Indirect evidence “Founded in 2017, BRS Robótica Submarina operates within the heart of Brazil's thriving Oil and Gas Industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 35 contacts → | ||||
Indirect 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 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 33 contacts → | ||||
Indirect evidence “A Sea1 Offshore do Brasil S.A.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 28 contacts → | ||||
Indirect evidence “Com mais de 35 anos de experiência, somos uma empresa especializada em mergulho profissional e serviços subaquáticos, oferecendo soluções seguras, eficientes e de alta qualidade.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 21 contacts → | ||||
Indirect evidence “Estabilished in 2010 in Brazil, Oceanserv is an Underwater Solution Company, specialized in services to the Oil and Gas industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 14 contacts → | ||||
Indirect evidence “Especializada em inspeção, manutenção e reparos subaquáticos, com expertise em pesquisas, assessorias, planejamentos e execução de projetos.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “Iara Systems is a start-up company committed with innovative and reliable solutions for the offshore oil & gas industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 11 contacts → | ||||
Indirect evidence “TECNOIL is an oil & energy company based out of Brazil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Indirect evidence “Somos uma empresa especializada em serviços subaquáticos, manutenção industrial, naval e offshore.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Indirect evidence “Bravocean Offshore Services ltda.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Indirect evidence “Iron Marine is a maritime company that works with ship repair and dive solutions based out of Rua São Francisco 306 Santos, São Paulo, Brazil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Indirect evidence “CBV Offshore Ltda Is your new choice on the Engineering / Services for Offshore / Marine projects.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: subsea intervention service providers. 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 subsea intervention service providers.
- Partial evidence
- Its own public description names part of subsea intervention service providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name subsea intervention service providers. 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 103 subsea intervention service providers based in Brazil
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,587 reachable decision-makers.
Free signup · no credit card
Subsea intervention service providers based in Brazil at a glance
As of Sep 22, 2026Companies by employee count
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 103 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 subsea intervention service providers, 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 “subsea intervention service providers”. 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 subsea intervention service providers), 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 subsea intervention service providers, 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, 1,587 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.
Subsea intervention service providers by metro
- Subsea intervention service providers in Rio De Janeiro30
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 subsea intervention service providers, 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 subsea intervention service providers are there based in Brazil?
RevenueBase identified 103 subsea intervention service providers 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?
OCYAN, headquartered in Rio De Janeiro, tops this list with the largest team on record.
Which city has the most subsea intervention service providers?
Rio De Janeiro leads with 30 headquartered companies, followed by Macae (13) and Rio Das Ostras (8).
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 1,587 verified decision-maker contacts tracked across these 103 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.
Ready to reach these companies? Verified emails and direct dials for all 103 subsea intervention service providers based in Brazil. Start with a free account, no credit card.
Download this list →Related lists
Subsea intervention service providers by geography
- Subsea intervention service providers based in Australia
- Subsea intervention service providers based in Canada
- Subsea intervention service providers based in France
- Subsea intervention service providers based in India
- Subsea intervention service providers based in Indonesia
- Subsea intervention service providers based in Malaysia
- Subsea intervention service providers based in the Netherlands
- Subsea intervention service providers based in Nigeria
- Subsea intervention service providers based in Norway
- Subsea intervention service providers based in the United Arab Emirates
- Subsea intervention service providers based in the United Kingdom
- Subsea intervention service providers based in the United States
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Subsea intervention service providers based in Australia
- Subsea intervention service providers based in Canada
- Subsea intervention service providers based in France
- Subsea intervention service providers based in India
- Subsea intervention service providers based in Indonesia
- Subsea intervention service providers based in Malaysia