Company lists · Data refreshed September 2026

Top 25 Prefabricated substation manufacturers based in Brazil

Name: Prefabricated substation manufacturers based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 210 companies tracked

RevenueBase identified 210 prefabricated substation manufacturers headquartered in Brazil as of September 2026 and tracks 7,585 professional contacts across them, including 1,249 with verified work emails. Sao Paulo is the largest hub.

This list covers prefabricated substation manufacturers 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 30, 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 30, 2026 86% judged on-target in blind review

210Companies

7,585Contacts tracked

1,249Verified emails

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The 25 largest prefabricated substation manufacturers based in Brazil

Ranked by team size

Top 25 of 210 prefabricated substation manufacturers based in Brazil, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to prefabricated substation manufacturers: 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 30, 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 30, 2026
2	Temon Técnica DE Montagens E Construções	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 30, 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 30, 2026
3	Grantel Engenharia	Indirect evidence	Curitiba, BrazilHQ checked Sep 30, 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 30, 2026
4	IBL Construções E Energia	Indirect evidence	Bauru, BrazilHQ checked Sep 30, 2026	501-1,000	319 contacts →
	Indirect evidence “Atuando em subestações de baixa, média, alta e extra-alta tensão, a IBL realiza obras de 13,8 a 550 kV em: Obras civis, eletromecânicas e elétricas para a construção, ampliação e…” Source: RevenueBase Database · checked Sep 30, 2026
5	Grupo Sendi	Indirect evidence	Bauru, BrazilHQ checked Sep 30, 2026	201-500	268 contacts →
	Indirect evidence “A SENDI iniciou suas atividades em 1995 no ramo de montagens industriais.” Source: RevenueBase Database · checked Sep 30, 2026
6	Tecnova Energia	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 30, 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 30, 2026
7	ITAM	Indirect evidence	Manaus, BrazilHQ checked Sep 30, 2026	201-500	209 contacts →
	Indirect evidence “A Indústria de Transformadores Amazonas Ltda, ITAM, é uma empresa do segmento de energia elétrica, especializada na produção de transformadores de diversas classes e potências…” Source: RevenueBase Database · checked Sep 30, 2026
8	Siner Soluções EM Energia	Indirect evidence	Carapicuiba, BrazilHQ checked Sep 30, 2026	51-200	176 contacts →
	Indirect evidence “Somos a única empresa 100% brasileira que desenvolve projetos, fabrica e instala sistemas de geração e distribuição de energia atendendo plenamente os padrões internacionais.” Source: RevenueBase Database · checked Sep 30, 2026
9	Rm2 Engenharia Ltda	Indirect evidence	Florianópolis, BrazilHQ checked Sep 30, 2026	201-500	133 contacts →
	Indirect evidence “Conectando energia.” Source: RevenueBase Database · checked Sep 30, 2026
10	Grupo CEI	Indirect evidence	Contagem, BrazilHQ checked Sep 30, 2026	201-500	101 contacts →
	Indirect evidence “Desde 1990, o Grupo CEI é a referência em infraestrutura, manutenção e montagem integrada de equipamentos e Subestações Elétricas no Brasil.” Source: RevenueBase Database · checked Sep 30, 2026
11	Blutrafos	Indirect evidence	Blumenau, BrazilHQ checked Sep 30, 2026	501-1,000	96 contacts →
	Indirect evidence “A Blutrafos é referência em soluções elétricas sustentáveis e inovadoras para os setores de energia solar, construção civil e indústria.” Source: RevenueBase Database · checked Sep 30, 2026
12	DMA Sistemas	Indirect evidence	Curitiba, BrazilHQ checked Sep 30, 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 30, 2026
13	Cema Construções E Tecnologia	Indirect evidence	Salvador, BrazilHQ checked Sep 30, 2026	201-500	83 contacts →
	Indirect evidence “Empresa com mais de 20 anos no mercado, atuando como força motriz para os maiores grupos de transmissão e distribuição de energia elétrica.” Source: RevenueBase Database · checked Sep 30, 2026
14	Energoato Eletricidade Ltda	Indirect evidence	Aparecida De Goiânia, BrazilHQ checked Sep 30, 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 30, 2026
15	Eman Engenharia DE Manutenção DE Sistemas Elétricos Ltda	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 30, 2026	51-200	72 contacts →
	Indirect evidence “Empresa de Engenharia criada em 1998 pelos engenheiros Dirceu Passos e Renato Conci.” Source: RevenueBase Database · checked Sep 30, 2026
16	Smart Electric Engenharia E Sistemas Ltda	Indirect evidence	Guarulhos, BrazilHQ checked Sep 30, 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 30, 2026
17	SRA Equipamentos E Sistemas	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 30, 2026	51-200	71 contacts →
	Indirect 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 30, 2026
18	Sempel Painéis Elétricos	Indirect evidence	Contagem, BrazilHQ checked Sep 30, 2026	51-200	69 contacts →
	Indirect evidence “Começamos nossa história no ano de 1990 em Minas Gerais, nos tornamos líderes em soluções elétricas personalizadas, com mais de 30 anos de experiência em baixa e média tensão.” Source: RevenueBase Database · checked Sep 30, 2026
19	Gimi Soluções	Indirect evidence	Suzano, BrazilHQ checked Sep 30, 2026	201-500	64 contacts →
	Indirect evidence “Indústria especializada na fabricação de painéis de distribuição de baixa tensão e cubículos modulares de média tensão com disjuntores extraíveis.” Source: RevenueBase Database · checked Sep 30, 2026
20	Comtrafo Group	Indirect evidence	Cornelio Procopio, BrazilHQ checked Sep 30, 2026	501-1,000	60 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
21	Austral Engenharia Especialista EM Projetos, Montagem E Manutenção Industrial	Indirect evidence	Catu, BrazilHQ checked Sep 30, 2026	51-200	51 contacts →
	Indirect evidence “Soluções completas em engenharia elétrica, automação, montagem de subestações, SPDA e painéis industriais.” Source: RevenueBase Database · checked Sep 30, 2026
22	Conin Construction And Assembly Ltda	Indirect evidence	Manaus, BrazilHQ checked Sep 30, 2026	51-200	41 contacts →
	Indirect evidence “Since our founding in 1995 in Manaus-AM, CONIN Construction and Assembly LTD is not just a name in the electrical engineering, electromechanical, and mechanical services sector…” Source: RevenueBase Database · checked Sep 30, 2026
23	Grid Energy Sistemas E Equipamentos	Indirect evidence	Araraquara, BrazilHQ checked Sep 30, 2026	51-200	40 contacts →
	Indirect evidence “Com projetos e equipamentos de excelência na área de Compensação de Energia e Construção de Subestações, a GRID ENERGY se posiciona entre os grandes players de fornecedores para…” Source: RevenueBase Database · checked Sep 30, 2026
24	Nari Brasil Holding Ltda	Indirect evidence	Sorocaba, BrazilHQ checked Sep 30, 2026	51-200	34 contacts →
	Indirect evidence “A NARI Brasil é uma empresa pertencente a Nari Group Corporation, que é o maior fornecedor de equipamentos para a indústria de energia elétrica na China.” Source: RevenueBase Database · checked Sep 30, 2026
25	Transformadores Jundiaí	Indirect evidence	Jundiaí, BrazilHQ checked Sep 30, 2026	51-200	31 contacts →
	Indirect evidence “A "Transformadores Jundiaí – Soluções em Energia" se consolida, desde 1990, no mercado regional e nacional como referência no segmento elétrico, sempre seguindo o compromisso de…” Source: RevenueBase Database · checked Sep 30, 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: prefabricated substation manufacturers. 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 prefabricated substation manufacturers.
Partial evidence: Its own public description names part of prefabricated substation manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name prefabricated substation manufacturers. 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 210 prefabricated substation manufacturers based in Brazil

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Prefabricated substation manufacturers based in Brazil at a glance

As of Sep 30, 2026

16.5%Verified-email coverage

36.1Average contacts per company

11-50Median size (employees)

8.6%Largest-city concentration · Sao Paulo

Sep 30, 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 worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 210 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 prefabricated substation manufacturers, 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 “prefabricated substation manufacturers”. 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 prefabricated substation manufacturers), 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 prefabricated substation manufacturers, 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, 1,249 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 30, 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.

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 prefabricated substation manufacturers, 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 prefabricated substation manufacturers are there based in Brazil?

RevenueBase identified 210 prefabricated substation manufacturers 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 prefabricated substation manufacturers?

Sao Paulo leads with 18 headquartered companies, followed by Belo Horizonte (8) and Goiania (8).

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 1,249 verified decision-maker contacts tracked across these 210 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 30, 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.