Company lists · Data refreshed September 2026

Top 25 Marine electrical contractors based in Brazil

Name: Marine electrical 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 361 companies tracked

RevenueBase identified 361 marine electrical contractors headquartered in Brazil as of September 2026 and tracks 5,782 professional contacts across them, including 401 with verified work emails. Sao Paulo is the largest hub.

This list covers marine electrical 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

361Companies

5,782Contacts tracked

401Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest marine electrical contractors based in Brazil

Ranked by team size

Top 25 of 361 marine electrical 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 marine electrical 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	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
2	Temon Técnica DE Montagens E Construções	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	1,001-5,000	587 contacts →
	Indirect evidence “Desde 1978 atuando na execução de Instalações Elétricas e Hidráulicas, a Temon conseguiu firmar sua marca nesse mercado com participação em mais de obras por todo Brasil e…” Source: RevenueBase Database · checked Sep 17, 2026
3	B. Tobace Instalações Elétricas E Telefônicas Ltda	Indirect evidence	Jaboticabal, BrazilHQ checked Sep 17, 2026	1,001-5,000	478 contacts →
	Indirect evidence “B.” Source: RevenueBase Database · checked Sep 17, 2026
4	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
5	Lifting Electric	Indirect evidence	Niterói, BrazilHQ checked Sep 17, 2026	201-500	216 contacts →
	Indirect evidence “A LIFTING, empresa fundada em 1993 especializada em Reparos, Manutenção e Instalação de Equipamentos elétricos, eletrônicos, instrumentação e Automação na Área Naval e Industrial.” Source: RevenueBase Database · checked Sep 17, 2026
6	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
7	Metalock Brasil Ltda	Indirect evidence	Santos, BrazilHQ checked Sep 17, 2026	51-200	108 contacts →
	Indirect evidence “A Metalock® Brasil iniciou suas atividades em junho de 1957.” Source: RevenueBase Database · checked Sep 17, 2026
8	AJS Indústria E Serviços	Indirect evidence	Sapucaia Do Sul, BrazilHQ checked Sep 17, 2026	51-200	106 contacts →
	Indirect evidence “A AJS INDÚSTRIA E SERVIÇOS é uma empresa especializada em fabricação, montagem e manuteção indústrial, com sede em Sapucaia do Sul, região metropolitana de Porto Alegre.” Source: RevenueBase Database · checked Sep 17, 2026
9	Polar Components Group	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	51-200	73 contacts →
	Indirect evidence “A Polar Macaé é distribuidora de Componentes Elétricos e Eletrônicos com mais de 20 anos de mercado e foco na indústria Naval e Offshore, principalmente nas atividades de…” Source: RevenueBase Database · checked Sep 17, 2026
10	Essência Serviços Sustentaveis	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	11-50	64 contacts →
	Indirect evidence “Situada próximo às instalações da Petrobrás, desde o ano de 1993, executando serviços elétricos nas áreas industrial e comercial, devido às necessidades do mercado entramos na…” Source: RevenueBase Database · checked Sep 17, 2026
11	Servitec	Indirect evidence	Barcarena, BrazilHQ checked Sep 17, 2026	51-200	55 contacts →
	Indirect evidence “A SERVITEC - Serviços & Tecnologia é uma empresa de Serviços de Engenharia, Manutenção e Montagens Eletromecânicas para Indústrias e Portos.” Source: RevenueBase Database · checked Sep 17, 2026
12	Marine Express	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “Empresa líder no fornecimentos de equipamentos e serviços para a indústria náutica a mais de 20 anos, representante de marcas líderes mundias no segmento como navegação Eletrônica…” Source: RevenueBase Database · checked Sep 17, 2026
13	MP Engenharia Elétrica	Indirect evidence	Piracicaba, BrazilHQ checked Sep 17, 2026	51-200	53 contacts →
	Indirect evidence “Instalações elétricas / Manutenção elétrica / Projetos elétricos / Análises e Ensaios / SPDA / Termografia / Retrofit / Montagens industriais / Automação / Treinamentos” Source: RevenueBase Database · checked Sep 17, 2026
14	Propulservice Ltda	Indirect evidence	Niteroi, BrazilHQ checked Sep 17, 2026	51-200	37 contacts →
	Indirect evidence “Fundada em 1990, a Propulservice está voltada às atividades de propulsão naval, máquinas de convés, hidráulica, automação e controle.” Source: RevenueBase Database · checked Sep 17, 2026
15	Coimbra Engenharia & Soluções	Indirect evidence	Santos, BrazilHQ checked Sep 17, 2026	51-200	35 contacts →
	Indirect evidence “Oferecemos serviços de INSPEÇÃO, MANUTENÇÃO e MONTAGEM INDUSTRIAL, PORTUÁRIA, NAVAL e OFFSHORE em equipamentos de elevação e transporte de cargas, equipamentos mecânicos…” Source: RevenueBase Database · checked Sep 17, 2026
16	Mapamar Comercio E Servicos	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	29 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
17	Googlemarine Eletrônica Naval	Indirect evidence	Niteroi, BrazilHQ checked Sep 17, 2026	1-10	26 contacts →
	Indirect evidence “A GoogleMarine Eletrônica Naval nasceu com o propósito de se tornar referência na prestação de serviços, executando instalação, comissionamento e o reparo em equipamentos no…” Source: RevenueBase Database · checked Sep 17, 2026
18	Rodotac	Indirect evidence	Itajai, BrazilHQ checked Sep 17, 2026	51-200	25 contacts →
	Indirect evidence “Há mais de três décadas, a RodoTac atua entregando os melhores serviços em:> Construção e Reparo Naval > Montagem e Caldeiraria > Estruturas Metálicas > Eletro Ferragens” Source: RevenueBase Database · checked Sep 17, 2026
19	Rcms Marine Brasil	Strong evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	17 contacts →
	Strong evidence “Electrical, automation, navigation and communication solutions company for maritime segment.” Source: RevenueBase Database · checked Sep 17, 2026
20	Noir - Naval Ocean	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Empresa de Engenharia localizada no Rio de Janeiro/RJ.” Source: RevenueBase Database · checked Sep 17, 2026
21	Líder Service	Indirect evidence	São Pedro Do Ivaí, BrazilHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “Atuamos há mais de 8 anos no setor de manutenção e instalação de elétrica, automação e caldeiraria.” Source: RevenueBase Database · checked Sep 17, 2026
22	Itec Engenharia	Indirect evidence	Igrejinha, BrazilHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Desde 2012, a ITEC atua com excelência em instalações prediais e industriais, oferecendo soluções completas em sistemas elétricos e complementares para obras de diversos portes.” Source: RevenueBase Database · checked Sep 17, 2026
23	Munhoz Instalacoes Industriais	Indirect evidence	Sorocaba, BrazilHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
24	Master Energy Elétrica E Instrumentação Ltda	Indirect evidence	Paulinia, BrazilHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Atuamos nas áreas de elétrica, instrumentação, mecânica e tubulação, para os setores industrial e comercial, prestando serviços de instalação, montagem, manutenção e execução de…” Source: RevenueBase Database · checked Sep 17, 2026
25	Acko Energy Solutions	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Fundada em 2016, a Acko Energy Solutions é especializada em reparos, manutenção e instalação de equipamentos elétricos na área naval e industrial, a qual possui engenheiros e…” 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: marine electrical 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 marine electrical contractors.
Partial evidence: Its own public description names part of marine electrical contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine electrical 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 361 marine electrical contractors based in Brazil

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 401 reachable decision-makers.

Free signup · no credit card

View the full list →

Marine electrical contractors based in Brazil at a glance

As of Sep 17, 2026

6.9%Verified-email coverage

16.0Average contacts per company

11-50Median size (employees)

8.3%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

166

11-50

133

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 361 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 marine electrical 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 “marine electrical 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 marine electrical 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 marine electrical 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, 401 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.

Marine electrical contractors by metro

Marine electrical contractors in Sao Paulo30
Marine electrical contractors in Rio De Janeiro26

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 marine electrical 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 marine electrical contractors are there based in Brazil?

RevenueBase identified 361 marine electrical 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?

Estaleiro Mauá S A, headquartered in Niteroi, tops this list with the largest team on record.

Which city has the most marine electrical contractors?

Sao Paulo leads with 30 headquartered companies, followed by Rio De Janeiro (26) and Niteroi (24).

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 401 verified decision-maker contacts tracked across these 361 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.

Ready to reach these companies? Verified emails and direct dials for all 361 marine electrical contractors based in Brazil. Start with a free account, no credit card.

Download this list →

Related lists

Marine electrical contractors by geography

Browse the directory

Browse: Companies home · All Brazil lists · All Marine electrical contractors lists · New lists

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.