Company lists · Data refreshed September 2026

Top 25 Ocean engineering firms based in Brazil

Name: Ocean engineering firms based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 194 companies tracked

RevenueBase identified 194 ocean engineering firms headquartered in Brazil as of September 2026 and tracks 16,722 professional contacts across them, including 3,058 with verified work emails. Rio De Janeiro is the largest hub.

This list covers ocean engineering firms 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 17, 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 17, 2026 86% judged on-target in blind review

194Companies

16,722Contacts tracked

3,058Verified emails

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The 25 largest ocean engineering firms based in Brazil

Ranked by team size

Top 25 of 194 ocean engineering firms based in Brazil, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to ocean engineering firms: 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	Gran Services S.A	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	1,001-5,000	2,752 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
2	OCYAN	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 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 17, 2026
3	Grupo CBO	Indirect evidence	Niterói, BrazilHQ checked Sep 17, 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 17, 2026
4	Maersk Supply Service	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 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 17, 2026
5	BELOV	Indirect evidence	Matriz, BrazilHQ checked Sep 17, 2026	1,001-5,000	1,108 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 17, 2026
6	Techocean Engineering Solutions	Partial evidence	Macaé, BrazilHQ checked Sep 17, 2026	501-1,000	751 contacts →
	Partial evidence “Techocean is a supplier of engineering services focused on the oil & gas industry, creating solutions for steel fabrications as Platforms, Piping Lines, Several Structures and…” Source: RevenueBase Database · checked Sep 17, 2026
7	Sondotécnica Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	588 contacts →
	Indirect evidence “Sondotécnica was founded in 1954.” Source: RevenueBase Database · checked Sep 17, 2026
8	Step OIL & GAS	Indirect evidence	Rio Das Ostras, BrazilHQ checked Sep 17, 2026	201-500	444 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 17, 2026
9	OIL States Brasil	Partial evidence	Macaé, BrazilHQ checked Sep 17, 2026	1,001-5,000	309 contacts →
	Partial 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 17, 2026
10	Granenergia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	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 17, 2026
11	Planave S.A.	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	501-1,000	218 contacts →
	Indirect evidence “Empresa atua em Engenharia Consultiva, na execução de estudos, projetos e acompanhamento de obras.” Source: RevenueBase Database · checked Sep 17, 2026
12	DBR Energies	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	184 contacts →
	Indirect evidence “Soluções em engenharia offshore e onshore” Source: RevenueBase Database · checked Sep 17, 2026
13	Rpeotta	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	169 contacts →
	Indirect evidence “A RPEOTTA tem por objetivo a prestação de serviços pautados no compromisso com a excelência em engenharia consultiva em Projetos (Conceitual, Básica e Detalhada), estudo e…” Source: RevenueBase Database · checked Sep 17, 2026
14	Aasj Serviços Industriais	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	501-1,000	139 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 17, 2026
15	Caruso Soluções Ambientais & Tecnológicas	Indirect evidence	Florianópolis, BrazilHQ checked Sep 17, 2026	51-200	130 contacts →
	Indirect evidence “Fundada em 1998, a empresa CARUSO Soluções Ambientais & Tecnológicas se dedica à prestação de serviços e consultoria nas áreas de engenharia e meio ambiente.” Source: RevenueBase Database · checked Sep 17, 2026
16	Teksea	Indirect evidence	Blumenau, BrazilHQ checked Sep 17, 2026	201-500	116 contacts →
	Indirect evidence “A TEKSEA Sistemas de Energia, com sede no Brasil, é uma empresa diversificada em produtos nos segmentos naval, industrial e de energias renováveis, concentrada em melhorar a…” Source: RevenueBase Database · checked Sep 17, 2026
17	OSX	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	105 contacts →
	Indirect 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 17, 2026
18	Dratec Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	97 contacts →
	Indirect evidence “A Dratec Engenharia Ltda.” Source: RevenueBase Database · checked Sep 17, 2026
19	Proper Marine	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	90 contacts →
	Indirect evidence “Somos agora Longitude.” Source: RevenueBase Database · checked Sep 17, 2026
20	Beconal	Indirect evidence	Manaus, BrazilHQ checked Sep 17, 2026	51-200	86 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
21	Simeros Technologies	Partial evidence	Cachoeirinha, BrazilHQ checked Sep 17, 2026	51-200	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 17, 2026
22	Macnor Marine	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	77 contacts →
	Indirect evidence “A Macnor Marine foi fundada em 2003, no Rio de Janeiro, juntamente com um grupo de fornecedores noruegueses de equipamentos para os mercados marítimo e offshore.” Source: RevenueBase Database · checked Sep 17, 2026
23	Geodeep	Indirect evidence	Maceió, BrazilHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect 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 17, 2026
24	Numerical Offshore Tank Tpn-Usp	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	51-200	52 contacts →
	Indirect evidence “The Numerical Offshore Tank (TPN-USP) is a computational and experimental hydrodynamic laboratory for the design and analysis of offshore systems, ports, platforms, ships and…” Source: RevenueBase Database · checked Sep 17, 2026
25	NSG Engineering	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	52 contacts →
	Indirect evidence “Big challenges.” Source: RevenueBase Database · checked Sep 17, 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: ocean engineering firms. 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 ocean engineering firms.
Partial evidence: Its own public description names part of ocean engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ocean engineering firms. 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 194 ocean engineering firms based in Brazil

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Ocean engineering firms based in Brazil at a glance

As of Sep 17, 2026

18.3%Verified-email coverage

86.2Average contacts per company

11-50Median size (employees)

38.7%Largest-city concentration · Rio De Janeiro

Sep 17, 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 194 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 ocean engineering firms, 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 “ocean engineering firms”. 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 ocean engineering firms), 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 ocean engineering firms, 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, 3,058 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 17, 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.

Ocean engineering firms by metro

Ocean engineering firms in Rio De Janeiro75

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 ocean engineering firms, 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 ocean engineering firms are there based in Brazil?

RevenueBase identified 194 ocean engineering firms 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 ocean engineering firms?

Rio De Janeiro leads with 75 headquartered companies, followed by Macae (13) and Niteroi (11).

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 3,058 verified decision-maker contacts tracked across these 194 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 17, 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.