Company lists · Data refreshed September 2026

Top 25 Offshore construction contractors based in Brazil

Name: Offshore construction contractors based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 212 companies tracked

RevenueBase identified 212 offshore construction contractors headquartered in Brazil as of September 2026 and tracks 31,372 professional contacts across them, including 3,631 with verified work emails. Rio De Janeiro is the largest hub.

This list covers offshore construction 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 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

212Companies

31,372Contacts tracked

3,631Verified emails

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The 25 largest offshore construction contractors based in Brazil

Ranked by team size

Top 25 of 212 offshore construction contractors 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 offshore construction 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.
#	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	Estrutural	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 17, 2026	1,001-5,000	2,461 contacts →
	Indirect evidence “Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.” Source: RevenueBase Database · checked Sep 17, 2026
3	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
4	Brasfels	Indirect evidence	Angra Dos Reis, BrazilHQ checked Sep 17, 2026	5,001-10,000	2,370 contacts →
	Indirect evidence “Empresa multinacional na área de construção e reparos de navios e plataformas.” Source: RevenueBase Database · checked Sep 17, 2026
5	ELFE	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	1,001-5,000	1,898 contacts →
	Indirect evidence “No mercado há mais de duas décadas, a Axia é uma empresa nacional com atuação em operação e manutenção industrial.” Source: RevenueBase Database · checked Sep 17, 2026
6	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
7	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
8	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
9	Estaleiro Mauá S A	Indirect evidence	Niterói, BrazilHQ checked Sep 17, 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 17, 2026
10	Techocean Engineering Solutions	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	501-1,000	751 contacts →
	Indirect 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
11	Sistac	Partial evidence	Macaé, BrazilHQ checked Sep 17, 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 17, 2026
12	Vertical Group	Indirect evidence	Niterói, BrazilHQ checked Sep 17, 2026	501-1,000	579 contacts →
	Indirect evidence “Somos uma empresa especializada em serviços de trabalho em altura, com foco em inspeção, reparo e manutenção nos setores naval e industrial.” Source: RevenueBase Database · checked Sep 17, 2026
13	Sapura Navegação Marítima S.A	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 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 17, 2026
14	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
15	Norteng Engenharia	Indirect evidence	São Gonçalo Do Amarante, BrazilHQ checked Sep 17, 2026	501-1,000	391 contacts →
	Indirect evidence “A Norteng Engenharia destaca-se por sua trajetória de competência e responsabilidade, na realização de empreendimentos em todo território nacional.” Source: RevenueBase Database · checked Sep 17, 2026
16	CTC Infra	Partial evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	51-200	320 contacts →
	Partial evidence “Designed to become a major Brazilian construction company, CTC Infra was born in still under the name Constremac, shortly after acquiring Copabo Construções, a company belonging…” Source: RevenueBase Database · checked Sep 17, 2026
17	OIL States Brasil	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 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 17, 2026
18	Granenergia	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 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 17, 2026
19	Quip S.A	Indirect evidence	Rio Grande, BrazilHQ checked Sep 17, 2026	n/a	272 contacts →
	Indirect evidence “Criada em 2005, a QUIP foi inicialmente formada como uma sociedade entre as empresas: Construtora Queiroz Galvão, UTC Engenharia e IESA Oleo e Gas.” Source: RevenueBase Database · checked Sep 17, 2026
20	Piatec	Indirect evidence	Santos, BrazilHQ checked Sep 17, 2026	201-500	270 contacts →
	Indirect evidence “A Piatec desenvolve projetos e soluções diferenciadas, empregando modernas tecnologias e equipamentos, aliados à ampla experiência para oferecer aos nossos clientes as melhores e…” Source: RevenueBase Database · checked Sep 17, 2026
21	DBR Energies	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	184 contacts →
	Partial evidence “Soluções em engenharia offshore e onshore” Source: RevenueBase Database · checked Sep 17, 2026
22	Aasj Serviços Industriais	Partial evidence	Macaé, BrazilHQ checked Sep 17, 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 17, 2026
23	Oilequip	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	127 contacts →
	Indirect evidence “A Oilequip Produtos e Serviços Ltda.” Source: RevenueBase Database · checked Sep 17, 2026
24	OSX	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 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 17, 2026
25	Petroserv S.A	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	102 contacts →
	Indirect evidence “PETROSERV was founded in 1972.” 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: offshore construction contractors. 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 construction contractors.
Partial evidence: Its own public description names part of offshore construction contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore construction contractors. 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 212 offshore construction contractors based in Brazil

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Offshore construction contractors based in Brazil at a glance

As of Sep 17, 2026

11.6%Verified-email coverage

148.0Average contacts per company

11-50Median size (employees)

30.2%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 212 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 construction 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 “offshore construction 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 offshore construction 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 offshore construction 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, 3,631 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.

Offshore construction contractors by metro

Offshore construction contractors in Rio De Janeiro64
Offshore construction contractors in Macae37

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 construction 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 offshore construction contractors are there based in Brazil?

RevenueBase identified 212 offshore construction 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 offshore construction contractors?

Rio De Janeiro leads with 64 headquartered companies, followed by Macae (37) and Niteroi (16).

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 3,631 verified decision-maker contacts tracked across these 212 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.