Company lists · Data refreshed September 2026

Top 23 Subsea installation contractors based in Brazil

RevenueBase identified 89 subsea installation contractors headquartered in Brazil as of September 2026 and tracks 12,725 professional contacts across them, including 2,066 with verified work emails. Rio De Janeiro is the largest hub.

This list covers subsea installation contractors 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 18, 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 18, 2026 86% judged on-target in blind review
89Companies
12,725Contacts tracked
2,066Verified emails
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The 23 largest subsea installation contractors based in Brazil

Ranked by team size
Top 23 of 89 subsea installation contractors based in Brazil, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to subsea installation contractors: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMacaé, BrazilHQ checked Sep 18, 20261,001-5,0002,752 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026
2Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 18, 20261,001-5,0002,427 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 18, 2026
3Indirect evidenceNiterói, BrazilHQ checked Sep 18, 20261,001-5,0001,847 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
4Indirect evidenceMatriz, BrazilHQ checked Sep 18, 20261,001-5,0001,108 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 18, 2026
5Partial evidenceRio De Janeiro, BrazilHQ checked Sep 18, 2026501-1,000575 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 18, 2026
6Indirect evidenceRio Das Ostras, BrazilHQ checked Sep 18, 2026201-500444 contacts →

Indirect evidence

“STEP OIL & GAS is a company with operations in Brazil and a focus on the fabrication sector of the oil and gas industry.”

Source: RevenueBase Database · checked Sep 18, 2026
7Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 18, 2026201-500304 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 18, 2026
8Indirect evidenceMacaé, BrazilHQ checked Sep 18, 2026501-1,000139 contacts →

Indirect 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 18, 2026
9Partial evidenceCachoeirinha, BrazilHQ checked Sep 18, 202651-20085 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 18, 2026
10Indirect evidenceSerra, BrazilHQ checked Sep 18, 202651-20064 contacts →

Indirect evidence

“A THERMOTITE DO BRASIL LTDA destaca-se como uma empresa inovadora e experiente no fornecimento de serviços de energia integrados, oferecendo uma ampla gama de soluções baseados em…”

Source: RevenueBase Database · checked Sep 18, 2026
11Indirect evidenceMacaé, BrazilHQ checked Sep 18, 202651-20035 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 18, 2026
12Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 18, 2026201-50033 contacts →

Indirect evidence

“A Sea1 Offshore do Brasil S.A.”

Source: RevenueBase Database · checked Sep 18, 2026
13Indirect evidenceAngra Dos Reis, BrazilHQ checked Sep 18, 202651-20028 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 18, 2026
14Indirect evidenceMaricá, BrazilHQ checked Sep 18, 202611-5014 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 18, 2026
15Indirect evidenceSão Sebastião, BrazilHQ checked Sep 18, 202611-5011 contacts →

Indirect evidence

“Somos uma empresa especializada em serviços subaquáticos, manutenção industrial, naval e offshore.”

Source: RevenueBase Database · checked Sep 18, 2026
16Indirect evidenceFlorianópolis, BrazilHQ checked Sep 18, 20261-1010 contacts →

Indirect evidence

“Bravocean Offshore Services ltda.”

Source: RevenueBase Database · checked Sep 18, 2026
17Indirect evidenceNiteroi, BrazilHQ checked Sep 18, 202611-508 contacts →

Indirect evidence

“CBV Offshore Ltda Is your new choice on the Engineering / Services for Offshore / Marine projects.”

Source: RevenueBase Database · checked Sep 18, 2026
18Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 18, 20261-108 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
19Indirect evidenceRio De Janeiro, BrazilHQ checked Sep 18, 202611-507 contacts →

Indirect evidence

“A PRESTOMARÍTIMA, fundada em 1979, através de um processo que envolve conhecimento, eficiência e alto grau de profissionalismo.”

Source: RevenueBase Database · checked Sep 18, 2026
20Indirect evidenceNiterói, BrazilHQ checked Sep 18, 20261-107 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026
21Indirect evidenceSão Francisco Do Sul, BrazilHQ checked Sep 18, 202611-505 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
22Partial evidenceRio De Janeiro, BrazilHQ checked Sep 18, 202611-504 contacts →

Partial evidence

“BMPTECH Engenharia is a Brazilian technology company that designs, manufactures, calibrates, maintains and operates equipment and systems for critical subsea, offshore and…”

Source: RevenueBase Database · checked Sep 18, 2026
23Partial evidenceRio De Janeiro, BrazilHQ checked Sep 18, 20261-104 contacts →

Partial evidence

Subsea Consult is the result of 23 years of solid experience in subsea construction associated with a broad network of partners with proven technical and operational expertise in…”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 23 of 89 subsea installation contractors based in Brazil

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Subsea installation contractors based in Brazil at a glance

As of Sep 18, 2026
16.2%Verified-email coverage
143.0Average contacts per company
11-50Median size (employees)
30.3%Largest-city concentration · Rio De Janeiro
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
30
51-200
23
201-500
5
501-1,000
3
1,001-5,000
9
10001+
1

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 89 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 installation contractors, 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 installation contractors”. 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 installation contractors), 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 installation contractors, 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, 2,066 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 18, 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 installation contractors by metro

  • Subsea installation contractors in Rio De Janeiro27

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 installation contractors, 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 installation contractors are there based in Brazil?

RevenueBase identified 89 subsea installation contractors 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?

Gran Services S.A, headquartered in Macae, tops this list with the largest team on record.

Which city has the most subsea installation contractors?

Rio De Janeiro leads with 27 headquartered companies, followed by Macae (9) and Rio Das Ostras (6).

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 2,066 verified decision-maker contacts tracked across these 89 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 18, 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.