Company lists · Data refreshed September 2026

Top 25 Electrical systems integration contractors based in Brazil

Name: Electrical systems integration contractors based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 3,714 companies tracked

RevenueBase identified 3,714 electrical systems integration contractors headquartered in Brazil as of September 2026 and tracks 46,782 professional contacts across them, including 5,605 with verified work emails and 514 with mobile numbers. Sao Paulo is the largest hub.

This list covers electrical systems integration 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 29, 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 29, 2026 86% judged on-target in blind review

3,714Companies

46,782Contacts tracked

5,605Verified emails

514Mobile numbers

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The 25 largest electrical systems integration contractors based in Brazil

Ranked by team size

Top 25 of 3,714 electrical systems integration contractors based in Brazil, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to electrical systems integration 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	Engelmig Energia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	5,001-10,000	1,818 contacts →
	Indirect evidence “A Engelmig foi fundada em 1985 com o objetivo de prestar serviços de engenharia em redes de distribuição de energia elétrica.” Source: RevenueBase Database · checked Sep 29, 2026
2	Control Construções Ltda	Indirect evidence	Joao Pessoa, BrazilHQ checked Sep 29, 2026	1,001-5,000	1,337 contacts →
	Indirect evidence “Fundada em na cidade de João Pessoa, a empresa se tornou especialista nas áreas de construção e prestação de serviços no setor elétrico.” Source: RevenueBase Database · checked Sep 29, 2026
3	TSA	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	501-1,000	872 contacts →
	Indirect evidence “A TSA destaca-se como uma das maiores empresas no seu setor de atuação.” Source: RevenueBase Database · checked Sep 29, 2026
4	Dimensional Brasil	Indirect evidence	Limeira, BrazilHQ checked Sep 29, 2026	501-1,000	853 contacts →
	Indirect evidence “Posicionamento A melhor empresa em solução de distribuição de material elétrico e automação industrial da América Latina.” Source: RevenueBase Database · checked Sep 29, 2026
5	MSE Engenharia	Indirect evidence	Londrina, BrazilHQ checked Sep 29, 2026	201-500	826 contacts →
	Indirect evidence “Com 46 anos de profundo know-how, adquirido através do atendimento aos mais diversos segmentos industriais, a MSE Engenharia é uma empresa que se orgulha de hoje ser completa em…” Source: RevenueBase Database · checked Sep 29, 2026
6	Temon Técnica DE Montagens E Construções	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 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 29, 2026
7	Gali Energia	Indirect evidence	Bauru, BrazilHQ checked Sep 29, 2026	201-500	486 contacts →
	Indirect evidence “Desde 1995, a Gali Energia constrói uma trajetória de excelência e inovação no setor elétrico brasileiro, liderando um Brasil protagonista em soluções sustentáveis de energia.” Source: RevenueBase Database · checked Sep 29, 2026
8	Enind Engenharia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	201-500	481 contacts →
	Indirect evidence “A Enind alia tecnologia, inteligência e versatilidade no cumprimento de cada tarefa.” Source: RevenueBase Database · checked Sep 29, 2026
9	B. Tobace Instalações Elétricas E Telefônicas Ltda	Indirect evidence	Jaboticabal, BrazilHQ checked Sep 29, 2026	1,001-5,000	478 contacts →
	Indirect evidence “B.” Source: RevenueBase Database · checked Sep 29, 2026
10	STN Empreendimentos E Construções	Indirect evidence	Areal, BrazilHQ checked Sep 29, 2026	501-1,000	471 contacts →
	Indirect evidence “A STN EMPREENDIMENTOS E CONSTRUÇÕES atua há mais de 30 anos nas áreas de engenharia elétrica, de eletromecânica e de engenharia civil em todo território nacional.” Source: RevenueBase Database · checked Sep 29, 2026
11	VOLGA	Partial evidence	Aparecida De Goiânia, BrazilHQ checked Sep 29, 2026	501-1,000	410 contacts →
	Partial evidence “Nossa história começou em 2008, já como parceiro licenciado da Schneider Electric, chegando aos dias atuais com uma indústria moderna ocupando uma área de construída.” Source: RevenueBase Database · checked Sep 29, 2026
12	FR Instalações E Construções Ltda	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	1,001-5,000	399 contacts →
	Indirect evidence “A FR Instalações é uma empresa especializada em instalações elétricas, hidráulicas, mecânicas e combate a incêndio de empreendimentos residenciais, comerciais, industriais e…” Source: RevenueBase Database · checked Sep 29, 2026
13	MI Electric Brasil	Partial evidence	Macaé, BrazilHQ checked Sep 29, 2026	201-500	395 contacts →
	Partial evidence “MI Electric Brasil is a company specialized in electrical engineering, controls and automation, focusing on provide energy supplies and equipment maintenance solutions in order to…” Source: RevenueBase Database · checked Sep 29, 2026
14	Tereme Engenharia	Indirect evidence	Serra, BrazilHQ checked Sep 29, 2026	501-1,000	391 contacts →
	Indirect evidence “CONTRATOS DE MANUTENÇÃO A Tereme oferece a seus clientes soluções de manutenção global ou parcial dos equipamentos e instalações elétricas de uma planta industrial.” Source: RevenueBase Database · checked Sep 29, 2026
15	Legrand Brasil	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	10001+	389 contacts →
	Indirect evidence “Há mais de 50 anos no país, a Legrand Brasil integra o grupo global líder em sistemas elétricos e digitais para infraestruturas de edifícios.” Source: RevenueBase Database · checked Sep 29, 2026
16	Orteng Equipamentos E Sistemas Ltda	Indirect evidence	Contagem, BrazilHQ checked Sep 29, 2026	1,001-5,000	365 contacts →
	Indirect evidence “Fundada em 11 de Novembro de 1977, a Orteng Equipamentos e Sistemas vem consolidando-se como um dos maiores fornecedores nacionais de sistemas de Automação, equipamentos…” Source: RevenueBase Database · checked Sep 29, 2026
17	Grupoorion	Indirect evidence	Brasilia, BrazilHQ checked Sep 29, 2026	201-500	350 contacts →
	Indirect evidence “A Orion, fundado há 30 anos, atua em diferentes segmentos de mercado, oferecendo soluções tecnológicas e serviços especializados de engenharia.” Source: RevenueBase Database · checked Sep 29, 2026
18	Hi-Mix Eletrônicos S A	Indirect evidence	Pato Branco, BrazilHQ checked Sep 29, 2026	501-1,000	325 contacts →
	Indirect evidence “Somos especialistas em integrar soluções de alta complexidade para diferentes segmentos da tecnologia.” Source: RevenueBase Database · checked Sep 29, 2026
19	MA Eletromecânica	Indirect evidence	São Luís, BrazilHQ checked Sep 29, 2026	1,001-5,000	300 contacts →
	Indirect evidence “MA ELETROMECÂNICA, fundada em 1995 na cidade de São Luís do Maranhão, surgiu do sonho e empreendedorismo do engenheiro eletricista Marcleo Araújo, atual diretor.” Source: RevenueBase Database · checked Sep 29, 2026
20	CEL Engenharia Celenergia	Indirect evidence	Goiânia, BrazilHQ checked Sep 29, 2026	1,001-5,000	263 contacts →
	Indirect evidence “Fundada em 1992, a CEL ENGENHARIA é regida pelos princípios da ética, responsabilidade e profissionalismo; oferece serviços implementados com rigor técnico e operacional aliados…” Source: RevenueBase Database · checked Sep 29, 2026
21	Ultra Engenharia E Construções Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	501-1,000	262 contacts →
	Indirect evidence “A ULTRA ENERGIA LTDA é uma empresa de obras e serviços com atuação nos segmentos de Engenharia Elétrica, Eletrônica, Telecomunicações e Civil.” Source: RevenueBase Database · checked Sep 29, 2026
22	Qualieng Engenharia	Indirect evidence	Diadema, BrazilHQ checked Sep 29, 2026	501-1,000	258 contacts →
	Indirect evidence “Com atuação consolidada na engenharia de montagem, a Qualieng Engenharia executa obras de instalações elétricas, hidráulicas, HVAC, sistemas de combate a incêndio e sistemas…” Source: RevenueBase Database · checked Sep 29, 2026
23	Dolphin Engenharia LC Automação	Indirect evidence	Gravataí, BrazilHQ checked Sep 29, 2026	201-500	240 contacts →
	Indirect evidence “A inovação gira o mundo moderno, um mundo melhor.” Source: RevenueBase Database · checked Sep 29, 2026
24	RCS Tecnologia	Indirect evidence	Brasilia, BrazilHQ checked Sep 29, 2026	n/a	235 contacts →
	Indirect evidence “Rcs Tecnologia is a construction company based out of St Shcsw Clsw 303, Bloco B Salas 38/40, Sn, Pavmto2, Brasilia, Distrito Federal, Brazil.” Source: RevenueBase Database · checked Sep 29, 2026
25	TDM Service & Solutions	Indirect evidence	Bragança Paulista, BrazilHQ checked Sep 29, 2026	201-500	218 contacts →
	Indirect evidence “We have been in the market for over 20 years serving the main industrial and commercial markets, gaining prominent positions in the segments of Engineering, Commissioning of…” Source: RevenueBase Database · checked Sep 29, 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: electrical systems integration 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 electrical systems integration contractors.
Partial evidence: Its own public description names part of electrical systems integration contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical systems integration 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 3,714 electrical systems integration contractors based in Brazil

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Electrical systems integration contractors based in Brazil at a glance

As of Sep 29, 2026

12.0%Verified-email coverage

1.1%Mobile-number coverage

12.6Average contacts per company

1-10Median size (employees)

12.6%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,905

11-50

1,243

51-200

415

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 32.0d

1,9850–30

2,48531–60

24361–90

390–180

14180+

Company record updated

Median 97.0d

00–30

34331–60

14,05361–90

26,14590–180

1,984180+

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 electrical systems integration 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 “electrical systems integration 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 electrical systems integration 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 electrical systems integration 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, 5,605 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 29, 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.

Electrical systems integration contractors by metro

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 electrical systems integration 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 electrical systems integration contractors are there based in Brazil?

RevenueBase identified 3,714 electrical systems integration 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?

Engelmig Energia, headquartered in Belo Horizonte, tops this list with the largest team on record.

Which city has the most electrical systems integration contractors?

Sao Paulo leads with 468 headquartered companies, followed by Rio De Janeiro (135) and Belo Horizonte (117).

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 5,605 verified decision-maker contacts tracked across these 3,714 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 29, 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.