Company lists · Data refreshed September 2026

Top 25 High voltage contractors based in Brazil

Name: High voltage contractors based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 726 companies tracked

RevenueBase identified 726 high voltage contractors headquartered in Brazil as of September 2026 and tracks 14,045 professional contacts across them, including 1,501 with verified work emails. Sao Paulo is the largest hub.

This list covers high voltage 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 16, 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 16, 2026 86% judged on-target in blind review

726Companies

14,045Contacts tracked

1,501Verified emails

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The 25 largest high voltage contractors based in Brazil

Ranked by team size

Top 25 of 726 high voltage contractors based in Brazil, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to high voltage 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 16, 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 16, 2026
2	Temon Técnica DE Montagens E Construções	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 16, 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 16, 2026
3	B. Tobace Instalações Elétricas E Telefônicas Ltda	Indirect evidence	Jaboticabal, BrazilHQ checked Sep 16, 2026	1,001-5,000	478 contacts →
	Indirect evidence “B.” Source: RevenueBase Database · checked Sep 16, 2026
4	Cotesa Engenharia	Indirect evidence	Florianópolis, BrazilHQ checked Sep 16, 2026	201-500	449 contacts →
	Indirect evidence “A COTESA é especialista na Engenharia de Operação & Manutenção de ativos elétricos de Geração e Transmissão de energia.” Source: RevenueBase Database · checked Sep 16, 2026
5	Dolp Engenharia	Indirect evidence	Aparecida De Goiânia, BrazilHQ checked Sep 16, 2026	1,001-5,000	337 contacts →
	Indirect evidence “Com mais de 45 anos de know-how no setor elétrico, a DOLP Engenharia iniciou suas atividades em novembro de 2012, no Estado de Goiás, consolidando-se como referência em engenharia…” Source: RevenueBase Database · checked Sep 16, 2026
6	CEL Engenharia Celenergia	Indirect evidence	Goiânia, BrazilHQ checked Sep 16, 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 16, 2026
7	Ultra Engenharia E Construções Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 16, 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 16, 2026
8	Qualieng Engenharia	Indirect evidence	Diadema, BrazilHQ checked Sep 16, 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 16, 2026
9	Planem Engenharia	Indirect evidence	São Paulo, BrazilHQ checked Sep 16, 2026	501-1,000	204 contacts →
	Indirect evidence “Fundada em 1974, a Planem Engenharia especializou-se na execução de instalações e manutenção em sistemas elétricos, hidráulicos e mecânicos, nos seguintes segmentos- MISSÃO…” Source: RevenueBase Database · checked Sep 16, 2026
10	Grupo Engenharia EP	Indirect evidence	São Paulo, BrazilHQ checked Sep 16, 2026	201-500	175 contacts →
	Indirect evidence “Somos uma empresa especializada em obras de transmissão e distribuição de energia no modo subterrâneo.” Source: RevenueBase Database · checked Sep 16, 2026
11	Maurizio	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 16, 2026	201-500	158 contacts →
	Indirect evidence “Maurizio, fundada em 1956, consolidou-se como referência na fabricação de equipamentos de alta tensão para linhas de Distribuição, Transmissão, Subestação e Smart Grids.” Source: RevenueBase Database · checked Sep 16, 2026
12	Parceria Engenharia Ltda	Indirect evidence	Fortaleza, BrazilHQ checked Sep 16, 2026	501-1,000	142 contacts →
	Indirect evidence “Parceria \| Instalações elétricas e construção civil com qualidade, segurança e sustentabilidade PARCERIA \| Instalações elétricas e construção civil com qualidade, segurança e…” Source: RevenueBase Database · checked Sep 16, 2026
13	Grupo Energia	Indirect evidence	Castro, BrazilHQ checked Sep 16, 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 16, 2026
14	Rm2 Engenharia Ltda	Indirect evidence	Florianópolis, BrazilHQ checked Sep 16, 2026	201-500	133 contacts →
	Indirect evidence “Conectando energia.” Source: RevenueBase Database · checked Sep 16, 2026
15	Ltsul Energia Construções E Engenharia Ltda	Indirect evidence	Florianópolis, BrazilHQ checked Sep 16, 2026	201-500	118 contacts →
	Indirect evidence “Solução completa para qualquer empreendimento de transmissão e distribuição de energia elétrica - Serviços específicos em linhas de transmissão de energia - Aluguel de veículos…” Source: RevenueBase Database · checked Sep 16, 2026
16	Proelt	Indirect evidence	Joinville, BrazilHQ checked Sep 16, 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 16, 2026
17	MP Trafos Engenharia	Indirect evidence	Volta Redonda, BrazilHQ checked Sep 16, 2026	1,001-5,000	103 contacts →
	Indirect evidence “A MP Trafos Engenharia nasceu em 1993, na cidade de Pindamonhangaba, para atender a crescente demanda por manutenção industrial especializada.” Source: RevenueBase Database · checked Sep 16, 2026
18	Pavibra Engenharia Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 16, 2026	51-200	98 contacts →
	Indirect evidence “A Pavibra é especializada na construção de linhas de transmissão aéreas e subterrâneas.” Source: RevenueBase Database · checked Sep 16, 2026
19	Energy Substation Services	Indirect evidence	Itupeva, BrazilHQ checked Sep 16, 2026	201-500	92 contacts →
	Indirect evidence “Construção de subestações Projetos Ensaios elétricos Comissionamento Manutenção Montagem de equipamentos Enchimento de gás SF6 Venda e aluguel de equipamentos Retrofit de…” Source: RevenueBase Database · checked Sep 16, 2026
20	RCE Construções Elétricas	Indirect evidence	Itapira, BrazilHQ checked Sep 16, 2026	501-1,000	92 contacts →
	Indirect evidence “Responsabilidade e competência marcam a história da empresa RCE Construções Elétricas Eireli.” Source: RevenueBase Database · checked Sep 16, 2026
21	Energoato Eletricidade Ltda	Indirect evidence	Aparecida De Goiânia, BrazilHQ checked Sep 16, 2026	51-200	75 contacts →
	Indirect evidence “Obras civis e Montagens eletromecânicas em Subestações de até 500 kV, Linhas de Transmissão de até 230 kV, Usinas Termoelétricas, Hidrelétricas e Eólicas, testes/ensaios em relés…” Source: RevenueBase Database · checked Sep 16, 2026
22	Smart Electric Engenharia E Sistemas Ltda	Indirect evidence	Guarulhos, BrazilHQ checked Sep 16, 2026	51-200	71 contacts →
	Indirect evidence “Somos uma empresa de serviços de engenharia elétrica, com grande experiência em usinas hidrelétricas, termoelétricas, parques eólicos e subestações de transmissão e distribuição…” Source: RevenueBase Database · checked Sep 16, 2026
23	Wiecheteck Engenharia Elétrica Ltda	Indirect evidence	Ponta Grossa, BrazilHQ checked Sep 16, 2026	201-500	66 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
24	Construtora Energia Ltda EPP	Indirect evidence	Luziânia, BrazilHQ checked Sep 16, 2026	201-500	60 contacts →
	Indirect evidence “Profissionais especializados em Rede Elétrica: Desde o projeto até a manutenção, oferecemos soluções abrangentes para redes elétricas de alta e baixa tensão, de 13,8 até 34,5 kv…” Source: RevenueBase Database · checked Sep 16, 2026
25	MP Engenharia Elétrica	Indirect evidence	Piracicaba, BrazilHQ checked Sep 16, 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 16, 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: high voltage 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 high voltage contractors.
Partial evidence: Its own public description names part of high voltage contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name high voltage 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 726 high voltage contractors based in Brazil

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High voltage contractors based in Brazil at a glance

As of Sep 16, 2026

10.7%Verified-email coverage

19.3Average contacts per company

11-50Median size (employees)

10.6%Largest-city concentration · Sao Paulo

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

300

11-50

256

51-200

101

201-500

501-1,000

1,001-5,000

5,001-10,000

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 726 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 high voltage 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 “high voltage 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 high voltage 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 high voltage 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, 1,501 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 16, 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.

High voltage contractors by metro

High voltage contractors in Sao Paulo77

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 high voltage 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 high voltage contractors are there based in Brazil?

RevenueBase identified 726 high voltage 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 high voltage contractors?

Sao Paulo leads with 77 headquartered companies, followed by Belo Horizonte (22) and Goiania (21).

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 1,501 verified decision-maker contacts tracked across these 726 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 16, 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.