Company lists · Data refreshed September 2026

Top 25 Electrical system design companies based in Brazil

Name: Electrical system design companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 2,500 companies tracked

RevenueBase identified 2,500 electrical system design companies headquartered in Brazil as of September 2026 and tracks 23,931 professional contacts across them, including 2,694 with verified work emails. Sao Paulo is the largest hub.

This list covers electrical system design companies 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 19, 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 19, 2026 86% judged on-target in blind review

2,500Companies

23,931Contacts tracked

2,694Verified emails

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The 25 largest electrical system design companies based in Brazil

Ranked by team size

Top 25 of 2,500 electrical system design companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical system design companies: 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 19, 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 19, 2026
2	Control Construções Ltda	Indirect evidence	Joao Pessoa, BrazilHQ checked Sep 19, 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 19, 2026
3	Temon Técnica DE Montagens E Construções	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 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 19, 2026
4	Grantel Engenharia	Indirect evidence	Curitiba, BrazilHQ checked Sep 19, 2026	1,001-5,000	339 contacts →
	Indirect evidence “Fundada em 1990, a Grantel Engenharia possui anos de experiência em soluções para construção de subestações, desde os estudos de engenharia, projeto básico e executivo, execução…” Source: RevenueBase Database · checked Sep 19, 2026
5	Sm&a Sistemas Elétricos	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	201-500	317 contacts →
	Indirect evidence “A SM & A é especializada no fornecimento de serviços de engenharia para sistemas elétricos de potência industriais e subestações de geração, transmissão e distribuição de energia…” Source: RevenueBase Database · checked Sep 19, 2026
6	CEL Engenharia Celenergia	Indirect evidence	Goiânia, BrazilHQ checked Sep 19, 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 19, 2026
7	Ultra Engenharia E Construções Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 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 19, 2026
8	Qualieng Engenharia	Indirect evidence	Diadema, BrazilHQ checked Sep 19, 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 19, 2026
9	Tecnova Energia	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 19, 2026	51-200	211 contacts →
	Indirect evidence “Fundada em 1983, a TECNOVA foi concebida como uma empresa de vendas, representando comercialmente companhias de grande expressão no segmento eletro-eletrônico.” Source: RevenueBase Database · checked Sep 19, 2026
10	Instaladora Elétrica Mercúrio	Indirect evidence	Sapucaia Do Sul, BrazilHQ checked Sep 19, 2026	501-1,000	201 contacts →
	Indirect evidence “A Instaladora Elétrica Mercúrio oferece soluções e tecnologia inovadoras na prestação de serviços da áreas da engenharia elétrica.” Source: RevenueBase Database · checked Sep 19, 2026
11	Eficaz Energia E Serviços Ltda	Indirect evidence	Olinda, BrazilHQ checked Sep 19, 2026	1,001-5,000	180 contacts →
	Indirect evidence “Fundada no ano de 1997 por ex-funcionários da Coelce a empresa surgiu com o propósito de atender as demandas crescentes no segmento de prestação de serviços em engenharia elétrica.” Source: RevenueBase Database · checked Sep 19, 2026
12	LZA Engenharia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	51-200	163 contacts →
	Indirect evidence “A LZA Engenharia, empresa especializada em desenvolvimento de projetos e gerenciamento, atua no mercado desde 1995, atendendo os setores de ar condicionado, hidráulica, elétrica e…” Source: RevenueBase Database · checked Sep 19, 2026
13	Marte Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	1,001-5,000	153 contacts →
	Indirect evidence “A Marte Engenharia Ltda é uma empresa de engenharia que oferece serviços de consultoria e projetos de engenharia nas áreas de geração, transmissão e distribuição de energia…” Source: RevenueBase Database · checked Sep 19, 2026
14	Engeluz Iluminacao E Eletricidade	Indirect evidence	Wenceslau Braz, BrazilHQ checked Sep 19, 2026	201-500	138 contacts →
	Indirect evidence “A Engeluz é uma empresa de capital nacional atuante na área de Engenharia Elétrica desde 1980.” Source: RevenueBase Database · checked Sep 19, 2026
15	Grupo Energia	Indirect evidence	Castro, BrazilHQ checked Sep 19, 2026	501-1,000	136 contacts →
	Indirect evidence “O Grupo Energia iniciou suas atividades na década de 90 através da prestação de serviços elétricos em baixa tensão.” Source: RevenueBase Database · checked Sep 19, 2026
16	Encel Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	501-1,000	125 contacts →
	Indirect evidence “Realizamos serviços de projeto, consultoria, construção, reforma e manutenção em rede aérea de distribuição rural e urbana, rede subterrânea de distribuição, linha de transmissão…” Source: RevenueBase Database · checked Sep 19, 2026
17	Novatec Instalações	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	51-200	117 contacts →
	Indirect evidence “No mercado desde 2007, a Novatec trabalha diretamente com empresas da Construção Civil, Indústrias e Incorporadoras oferecendo serviços de Instalações Elétricas e Hidráulicas…” Source: RevenueBase Database · checked Sep 19, 2026
18	Eletromw Electrical Solutions	Partial evidence	Joinville, BrazilHQ checked Sep 19, 2026	51-200	112 contacts →
	Partial evidence “ELECTRICAL ENGINEERING: Commercial and industrial projects and consultancy serving our customers with excellence, agility and high level of quality; ELECTRICAL INSTALLATIONS AND…” Source: RevenueBase Database · checked Sep 19, 2026
19	Proelt	Indirect evidence	Joinville, BrazilHQ checked Sep 19, 2026	201-500	111 contacts →
	Indirect evidence “Há mais de 40 anos colocamos toda a nossa energia, talento e conhecimento para contribuir com o negócio dos nossos clientes e com a qualidade de vida das pessoas.” Source: RevenueBase Database · checked Sep 19, 2026
20	Almeida França Engenharia	Indirect evidence	Brasília, BrazilHQ checked Sep 19, 2026	501-1,000	106 contacts →
	Indirect evidence “A Almeida França Engenharia tem 37 anos de história, pautados em adoção de tecnologias inovadoras e ênfase no respeito ao ser humano, clientes e colaboradores.” Source: RevenueBase Database · checked Sep 19, 2026
21	Iosi Energia	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	51-200	100 contacts →
	Indirect evidence “Com 25 anos de atuação no mercado, a Iosi Energia oferece serviços completos em engenharia elétrica, automação e telecomunicações, atendendo as principais demandas de usinas…” Source: RevenueBase Database · checked Sep 19, 2026
22	DMA Sistemas	Indirect evidence	Curitiba, BrazilHQ checked Sep 19, 2026	51-200	94 contacts →
	Indirect evidence “A DMA é uma empresa dedicada ao fornecimento de Sistemas de Energia para os segmentos de Geração, Transmissão e Distribuição de Energia, Indústria e Grandes Obras de…” Source: RevenueBase Database · checked Sep 19, 2026
23	Neopro	Indirect evidence	Cotia, BrazilHQ checked Sep 19, 2026	51-200	94 contacts →
	Indirect evidence “A Neopro existe para transformar desafios de engenharia em soluções inteligentes que elevam a performance industrial.” Source: RevenueBase Database · checked Sep 19, 2026
24	Prática Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	201-500	93 contacts →
	Indirect evidence “Fundada em a Prática Engenharia conquistou espaço e tornou-se uma empresa respeitada na solução e engenharia de obras civis, hidráulicas e elétricas, na consecução de projetos…” Source: RevenueBase Database · checked Sep 19, 2026
25	Conte Cornetet Arquitetura E Consultoria Ltda	Indirect evidence	Brasília, BrazilHQ checked Sep 19, 2026	n/a	92 contacts →
	Indirect evidence “Fundada em 2006, a Conte Cornetet trabalha na elaboração de Projetos de Arquitetura e Engenharia, além de consultoria e pesquisa, buscando soluções para clientes comerciais…” Source: RevenueBase Database · checked Sep 19, 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 system design companies. 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 system design companies.
Partial evidence: Its own public description names part of electrical system design companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical system design companies. 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 2,500 electrical system design companies based in Brazil

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Electrical system design companies based in Brazil at a glance

As of Sep 19, 2026

11.3%Verified-email coverage

9.6Average contacts per company

1-10Median size (employees)

12.2%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,419

11-50

754

51-200

236

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 2,500 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 system design companies, 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 system design companies”. 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 system design companies), 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 system design companies, 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, 2,694 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 19, 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 system design companies by metro

Electrical system design companies in Sao Paulo306
Electrical system design companies in Rio De Janeiro105
Electrical system design companies in Belo Horizonte81
Electrical system design companies in Curitiba78
Electrical system design companies in Goiania54
Electrical system design companies in Porto Alegre51
Electrical system design companies in Salvador41
Electrical system design companies in Campinas39
Electrical system design companies in Sorocaba37
Electrical system design companies in Sao Jose Dos Campos34
Electrical system design companies in Fortaleza33
Electrical system design companies in Guarulhos32
Electrical system design companies in Jundiai27
Electrical system design companies in Ribeirao Preto25

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 system design companies, 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 system design companies are there based in Brazil?

RevenueBase identified 2,500 electrical system design companies 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 system design companies?

Sao Paulo leads with 306 headquartered companies, followed by Rio De Janeiro (105) and Belo Horizonte (81).

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 2,694 verified decision-maker contacts tracked across these 2,500 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 19, 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.