Company lists · Data refreshed September 2026

Top 25 Electrical systems integration contractors based in Belo Horizonte, Brazil

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 117 companies tracked

RevenueBase identified 117 electrical systems integration contractors headquartered in Belo Horizonte, Brazil as of September 2026 and tracks 4,328 professional contacts across them, including 771 with verified work emails. Across Brazil, Sao Paulo is the largest hub for this category (468 companies); Belo Horizonte has 117.

This list covers electrical systems integration contractors headquartered in Belo Horizonte, 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

117Companies

4,328Contacts tracked

771Verified emails

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The 25 largest electrical systems integration contractors based in Belo Horizonte, Brazil

Ranked by team size

Top 25 of 117 electrical systems integration contractors based in Belo Horizonte, 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	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
3	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
4	Tecwise	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	201-500	146 contacts →
	Indirect evidence “With strategically positioned teams & offices in Chile and Brazil, TECWISE supports all of LATAM.” Source: RevenueBase Database · checked Sep 29, 2026
5	Simatec	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	51-200	137 contacts →
	Indirect evidence “A SIMATEC atua fornecendo soluções em Automação, Elétrica e Acionamentos reguláveis para o mercado Industrial desde 1994.” Source: RevenueBase Database · checked Sep 29, 2026
6	Veolink Sistemas Integrados DE Segurança Eletronica	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	501-1,000	135 contacts →
	Indirect evidence “A VEOLINK é uma integradora de sistemas eletrônicos de segurança, automação e gestão de dados do Grupo Graber, que fornece desde soluções simples destinadas a proteção das pessoas…” Source: RevenueBase Database · checked Sep 29, 2026
7	Somitec Automação	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	51-200	100 contacts →
	Indirect evidence “Com vinte anos de atuação, a Somitec é uma empresa que se destaca como provedora de soluções de tecnologia voltadas para infraestrutura de edificações e instalações prediais.” Source: RevenueBase Database · checked Sep 29, 2026
8	Alfa Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	11-50	98 contacts →
	Indirect evidence “A ALFA ENGENHARIA é uma empresa especializada em consultoria e projetos industriais de elétrica, instrumentação e automação.” Source: RevenueBase Database · checked Sep 29, 2026
9	SRA Equipamentos E Sistemas	Strong evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	51-200	71 contacts →
	Strong evidence “SRA is a local electrical engineering Company having global vision with expertise in electrical, power electronic, automation and instrumentation systems focused in industrial…” Source: RevenueBase Database · checked Sep 29, 2026
10	MPA Automação	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	51-200	43 contacts →
	Indirect evidence “MPA - Multi Process Automation, com sede em Belo Horizonte/MG, foi fundada em 2010 se destacando pelos seus inúmeros diferenciais, trabalhando em conjunto com grandes parceiros e…” Source: RevenueBase Database · checked Sep 29, 2026
11	DM Controles Elétricos & Automação EM Saneamento	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	11-50	43 contacts →
	Indirect evidence “Empresa dedicada ao segmento de projetos e instalações elétricas, com vasta experiência em montagem de painéis elétricos de proteção e de comando, e quadros de distribuição de…” Source: RevenueBase Database · checked Sep 29, 2026
12	MGA Automação Industrial	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	11-50	23 contacts →
	Indirect evidence “Desenvolver soluções em automação industrial e sistemas elétricos para atender todas as exigências de acordo com as necessidades dos clientes.” Source: RevenueBase Database · checked Sep 29, 2026
13	Solutem Automação Industrial	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence “Especialistas em Segurança de Máquinas e Equipamentos, Automação Industrial e Painéis Elétricos, fornecemos soluções sob medida para atender às exigências e necessidades…” Source: RevenueBase Database · checked Sep 29, 2026
14	Dhlink Sistemas	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	51-200	13 contacts →
	Indirect evidence “Fundada em 2004, a DHLINK SISTEMAS LTDA é uma empresa prestadora de serviços nas áreas de Engenharia Elétrica, Automação Predial e Industrial e tem como principal objetivo…” Source: RevenueBase Database · checked Sep 29, 2026
15	Rocket-Tec	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	51-200	12 contacts →
	Indirect evidence “Com atuação no mercado desde 1997, a Rocket-Tec surgiu com a vocação para prover os serviços de manutenção e implantação terceirizada de sistemas eletrônicos de segurança.” Source: RevenueBase Database · checked Sep 29, 2026
16	Ihm-Engenharia E Sistemas DE Automacao	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	51-200	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
17	Pragma Projetos	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	1-10	9 contacts →
	Indirect evidence “Empresa especializada na Elaboração de Projetos de Instalações com destaque para a Compatibilização das Disciplinas.” Source: RevenueBase Database · checked Sep 29, 2026
18	Mhitech	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	11-50	8 contacts →
	Indirect evidence “A MHiTech é uma empresa de engenharia com expertise no desenvolvimento de projetos, consultoria e serviços em sistemas elétricos e de automação.” Source: RevenueBase Database · checked Sep 29, 2026
19	Unitech Engenharia DE Automação Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	11-50	7 contacts →
	Indirect evidence “Prestação de serviços de engenharia de automação industrial e comercial.” Source: RevenueBase Database · checked Sep 29, 2026
20	M&w Energy	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	11-50	6 contacts →
	Indirect evidence “Somos uma das melhores empresas de manutenção e instalação em subestação de energia conforme norma vigente de segurança em instalação e serviços em eletricidade, de Minas Gerais.” Source: RevenueBase Database · checked Sep 29, 2026
21	Mt&a Projetos E Consultoria Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “A MT & A oferece soluções em projetos de engenharia de sistemas prediais, consultoria técnica e a execução de serviços nestas áreas.” Source: RevenueBase Database · checked Sep 29, 2026
22	Solution Sistemas	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “Assuming that the number of activities was a enormous amount of responsibilities, to optimize the services and attention to the costumer, the company was divided in its…” Source: RevenueBase Database · checked Sep 29, 2026
23	Elildo Carvalho Engenharia Elétrica	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Fundada em 1988 pelo Engenheiro Eletricista Elildo Alves Ribeiro de Carvalho, nossa atividade envolve representações e serviços técnicos de Engenharia Elétrica e de…” Source: RevenueBase Database · checked Sep 29, 2026
24	Primecable Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	1-10	2 contacts →
	Indirect evidence “A PRIMECABLE é uma empresa especializada em projetos e instalações focada na satisfação total do cliente.” Source: RevenueBase Database · checked Sep 29, 2026
25	Legacy Engenharia Elétrica	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 29, 2026	1-10	2 contacts →
	Indirect evidence “Engenharia Elétrica Industrial e Predial - Montagens e Manutenções Elétricas A Legacy Engenharia Elétrica oferece soluções personalizadas para a eficiência energética.” 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 117 electrical systems integration contractors based in Belo Horizonte, Brazil

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Electrical systems integration contractors based in Belo Horizonte, Brazil at a glance

As of Sep 29, 2026

17.8%Verified-email coverage

37.0Average contacts per company

11-50Median size (employees)

Sep 29, 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

Email recency for this list is measured across the whole Brazil list rather than for Belo Horizonte, so it is reported there. Company counts and contact totals on this page are exact for Belo Horizonte, over 117 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 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 Belo Horizonte, 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 Belo Horizonte 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, 771 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 in Brazil

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 Belo Horizonte, Brazil?

RevenueBase identified 117 electrical systems integration contractors headquartered in Belo Horizonte, 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 in Brazil has the most electrical systems integration contractors?

Sao Paulo leads Brazil 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 771 verified decision-maker contacts tracked across these 117 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.