Company lists · Data refreshed September 2026

Top 25 Offshore platform installation services based in Brazil

Name: Offshore platform installation services based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 187 companies tracked

RevenueBase identified 187 offshore platform installation services headquartered in Brazil as of September 2026 and tracks 29,076 professional contacts across them, including 3,367 with verified work emails and 462 with mobile numbers. Rio De Janeiro is the largest hub.

This list covers offshore platform installation services 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

187Companies

29,076Contacts tracked

3,367Verified emails

462Mobile numbers

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The 25 largest offshore platform installation services based in Brazil

Ranked by team size

Top 25 of 187 offshore platform installation services based in Brazil, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names offshore platform installation services: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Gran Services S.AIndirect evidence	Macaé, BrazilHQ checked Sep 5, 2026	1,001-5,000	2,752
	Source: company website · checked Sep 5, 2026
2	EstruturalIndirect evidence	Porto Alegre, BrazilHQ checked Sep 5, 2026	1,001-5,000	2,461
	“Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.” Source: company website · checked Sep 5, 2026
3	OCYANIndirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	1,001-5,000	2,427
	“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: company website · checked Sep 5, 2026
4	BrasfelsIndirect evidence	Angra Dos Reis, BrazilHQ checked Sep 5, 2026	5,001-10,000	2,370
	“Empresa multinacional na área de construção e reparos de navios e plataformas.” Source: company website · checked Sep 5, 2026
5	ELFEIndirect evidence	Macaé, BrazilHQ checked Sep 5, 2026	1,001-5,000	1,898
	“No mercado há mais de duas décadas, a Axia é uma empresa nacional com atuação em operação e manutenção industrial.” Source: company website · checked Sep 5, 2026
6	Grupo CBOIndirect evidence	Niterói, BrazilHQ checked Sep 5, 2026	1,001-5,000	1,847
	“O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Source: company website · checked Sep 5, 2026
7	Maersk Supply ServiceIndirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	201-500	1,407
	“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: company website · checked Sep 5, 2026
8	BELOVIndirect evidence	Matriz, BrazilHQ checked Sep 5, 2026	1,001-5,000	1,108
	“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: company website · checked Sep 5, 2026
9	Estaleiro Mauá S AIndirect evidence	Niterói, BrazilHQ checked Sep 5, 2026	1,001-5,000	1,019
	“O MAIS EXPERIENTE ESTALEIRO DO BRASIL O Mauá é o mais experiente e tradicional estaleiro em operação no Brasil com atividades desde 1845.” Source: company website · checked Sep 5, 2026
10	Techocean Engineering SolutionsPartial evidence	Macaé, BrazilHQ checked Sep 5, 2026	501-1,000	751
	“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: company website · checked Sep 5, 2026
11	Vertical GroupIndirect evidence	Niterói, BrazilHQ checked Sep 5, 2026	501-1,000	579
	“Somos uma empresa especializada em serviços de trabalho em altura, com foco em inspeção, reparo e manutenção nos setores naval e industrial.” Source: company website · checked Sep 5, 2026
12	C.S.E. Mecanica E Instrumentação SAIndirect evidence	Rio Das Ostras, BrazilHQ checked Sep 5, 2026	501-1,000	487
	“Fundada em outubro de 1984, a C.S.E.” Source: company website · checked Sep 5, 2026
13	Step OIL & GASIndirect evidence	Rio Das Ostras, BrazilHQ checked Sep 5, 2026	201-500	444
	“STEP OIL & GAS is a company with operations in Brazil and a focus on the fabrication sector of the oil and gas industry.” Source: company website · checked Sep 5, 2026
14	Norteng EngenhariaIndirect evidence	São Gonçalo Do Amarante, BrazilHQ checked Sep 5, 2026	501-1,000	391
	“A Norteng Engenharia destaca-se por sua trajetória de competência e responsabilidade, na realização de empreendimentos em todo território nacional.” Source: company website · checked Sep 5, 2026
15	CTC InfraIndirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	51-200	320
	“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: company website · checked Sep 5, 2026
16	OIL States BrasilIndirect evidence	Macaé, BrazilHQ checked Sep 5, 2026	1,001-5,000	309
	“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: company website · checked Sep 5, 2026
17	GranenergiaPartial evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	201-500	304
	“Founded in 2011 by the Gradin family, GranEnergia is an Integrated Offshore Energy Services Company, headquartered in Brazil and the Netherlands.” Source: company website · checked Sep 5, 2026
18	SACSIndirect evidence	Mogi Das Cruzes, BrazilHQ checked Sep 5, 2026	501-1,000	290
	“A SACS Construção e Montagem Ltda, foi fundada em Julho de 1994 na cidade de Mogi das Cruzes no estado de São Paulo.” Source: company website · checked Sep 5, 2026
19	Quip S.AIndirect evidence	Rio Grande, BrazilHQ checked Sep 5, 2026	n/a	272
	“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: company website · checked Sep 5, 2026
20	DBR EnergiesPartial evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	201-500	184
	“Soluções em engenharia offshore e onshore” Source: company website · checked Sep 5, 2026
21	Aasj Serviços IndustriaisPartial evidence	Macaé, BrazilHQ checked Sep 5, 2026	501-1,000	139
	“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: company website · checked Sep 5, 2026
22	OilequipIndirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	201-500	127
	“A Oilequip Produtos e Serviços Ltda.” Source: company website · checked Sep 5, 2026
23	OSXPartial evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	11-50	105
	“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: company website · checked Sep 5, 2026
24	Petroserv S.AIndirect evidence	Rio De Janeiro, BrazilHQ checked Sep 5, 2026	11-50	102
	“PETROSERV was founded in 1972.” Source: company website · checked Sep 5, 2026
25	Codimar Construções E MontagensIndirect evidence	Macae, BrazilHQ checked Sep 5, 2026	201-500	93
	“Somos a Codimar Construções e Montagens LTDA, empresa fundada em 1987, no município da Serra/ES.” Source: company website · checked Sep 5, 2026

Showing 25 of 187 offshore platform installation services based in Brazil

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Offshore platform installation services based in Brazil at a glance

As of Sep 5, 2026

11-50Median size (employees)

Rio De JaneiroLargest hub · 52 HQs

462Contacts with mobile numbers

Sep 5, 2026Data 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+

Verified emails by last verification

0–30

3,117

31–60

223

61–90

90–180

180+

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 platform installation services, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 platform installation services”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among offshore platform installation services, 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 an evidence 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, 3,367 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 5, 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 platform installation services by metro

Offshore platform installation services in Rio De Janeiro52
Offshore platform installation services in Macae32

Frequently asked

How many offshore platform installation services are there based in Brazil?

RevenueBase identified 187 offshore platform installation services 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 platform installation services?

Rio De Janeiro leads with 52 headquartered companies, followed by Macae (32) and Niteroi (14).

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 3,367 verified decision-maker contacts tracked across these 187 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 5, 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 SmartSearch, 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.