Company lists · Data refreshed September 2026

Top 25 Transformer maintenance companies based in Brazil

Name: Transformer maintenance companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 445 companies tracked

RevenueBase identified 445 transformer maintenance companies headquartered in Brazil as of September 2026 and tracks 6,829 professional contacts across them, including 992 with verified work emails. Sao Paulo is the largest hub.

This list covers transformer maintenance 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 22, 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 22, 2026 86% judged on-target in blind review

445Companies

6,829Contacts tracked

992Verified emails

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The 25 largest transformer maintenance companies based in Brazil

Ranked by team size

Top 25 of 445 transformer maintenance companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to transformer maintenance 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 22, 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 22, 2026
2	Data Engenharia	Indirect evidence	Sarzedo, BrazilHQ checked Sep 22, 2026	501-1,000	629 contacts →
	Indirect evidence “The DATA Engenharia is installed in a green area of m2, with m2 of constructed area, in the municipality of Sarzedo (industrial region in the vicinity of Belo Horizonte / MG).” Source: RevenueBase Database · checked Sep 22, 2026
3	Tereme Engenharia	Indirect evidence	Serra, BrazilHQ checked Sep 22, 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 22, 2026
4	Trael Transformadores Elétricos Ltda	Partial evidence	Cuiabá, BrazilHQ checked Sep 22, 2026	1,001-5,000	230 contacts →
	Partial evidence “A TRAEL iniciou suas atividades em 1992 com a fabricação de transformadores de distribuição, força e especiais.” Source: RevenueBase Database · checked Sep 22, 2026
5	TDM Service & Solutions	Indirect evidence	Bragança Paulista, BrazilHQ checked Sep 22, 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 22, 2026
6	ITAM	Partial evidence	Manaus, BrazilHQ checked Sep 22, 2026	201-500	209 contacts →
	Partial 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 22, 2026
7	Comtrafo	Partial evidence	Cornelio Procopio, BrazilHQ checked Sep 22, 2026	501-1,000	119 contacts →
	Partial evidence “A COMTRAFO atua desde 1994 produzindo transformadores de distribuição e força para o mercado nacional e internacional.” Source: RevenueBase Database · checked Sep 22, 2026
8	MP Trafos Engenharia	Indirect evidence	Volta Redonda, BrazilHQ checked Sep 22, 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 22, 2026
9	TME Engineering & Manintenance	Indirect evidence	Campinas, BrazilHQ checked Sep 22, 2026	11-50	42 contacts →
	Indirect evidence “TME ENGENHARIA e MANUTENÇÃO is a services company.” Source: RevenueBase Database · checked Sep 22, 2026
10	Grupo W-Service	Indirect evidence	São Bernardo Do Campo, BrazilHQ checked Sep 22, 2026	51-200	33 contacts →
	Indirect evidence “Manutenção preditiva, preventiva e corretiva em subestações de baixa, média e alta tensão.” Source: RevenueBase Database · checked Sep 22, 2026
11	Transformadores Jundiaí	Partial evidence	Jundiaí, BrazilHQ checked Sep 22, 2026	51-200	31 contacts →
	Partial 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 22, 2026
12	Grupo Gera Energia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 22, 2026	11-50	31 contacts →
	Indirect evidence “O GRUPO GERA ENERGIA foi fundado por profissionais experientes com mais de 30 anos no mercado na área de geração e distribuição de energia.” Source: RevenueBase Database · checked Sep 22, 2026
13	Trafocare Ltda	Partial evidence	Campinas, BrazilHQ checked Sep 22, 2026	11-50	26 contacts →
	Partial evidence “A Trafocare é uma empresa especializada na manutenção de transformadores e comércio de fluidos isolantes elétricos, investindo no que há de mais moderno e eficiente no mercado…” Source: RevenueBase Database · checked Sep 22, 2026
14	Contec Enrolamento DE Motores Elétricos Ltda	Indirect evidence	Mogi Guaçu, BrazilHQ checked Sep 22, 2026	11-50	26 contacts →
	Indirect evidence “A Contec Enrolamento de Motores Elétricos LTDA atua na prestação de serviços de manutenção corretiva e preventiva de motores elétricos, bombas hidráulicas, painéis elétricos e…” Source: RevenueBase Database · checked Sep 22, 2026
15	PIX Engenharia E Serviços	Indirect evidence	Camaçari, BrazilHQ checked Sep 22, 2026	1-10	25 contacts →
	Indirect evidence “Empresa especializada em soluções elétricas: Service- Reparo em disjuntores e chaves (BT, MT, AT)- Reparo em relés de proteção - Manutenção preventiva e corretiva na subestação -…” Source: RevenueBase Database · checked Sep 22, 2026
16	Maintenance Service Engenharia DE Manutenção Ltda	Indirect evidence	Curitiba, BrazilHQ checked Sep 22, 2026	11-50	24 contacts →
	Indirect evidence “Estamos no mercado desde 1986 prestando serviços de manutenção em subestações, executando retrofit em equipamentos e comissionamento em subestações de media, alta e extra-alta…” Source: RevenueBase Database · checked Sep 22, 2026
17	WT Engenharia	Indirect evidence	Recife, BrazilHQ checked Sep 22, 2026	11-50	24 contacts →
	Indirect evidence “A WT - Manutenções e Montagens Ltda, Fundada em 1997, tem desenvolvido trabalhos nos diversos estados do Nordeste, atuando sob o conceito de engenharia integrada.” Source: RevenueBase Database · checked Sep 22, 2026
18	Turbo Drive Manutencao E Consultoria	Indirect evidence	Jaragua Do Sul, BrazilHQ checked Sep 22, 2026	11-50	17 contacts →
	Indirect evidence “Fundada em 2005 em Jaraguá do Sul - SC, a TURBO DRIVE MANUTENÇÃO E CONSULTORIA LTDA, tem como missão, fornecer a seus clientes produtos e serviços especializados na área de…” Source: RevenueBase Database · checked Sep 22, 2026
19	Mgtrafos	Strong evidence	São Joaquim De Bicas, BrazilHQ checked Sep 22, 2026	11-50	15 contacts →
	Strong evidence “Formed by experienced professionals in the Brazilian electric sector, we are a group of companies specialized in analysis, diagnostics, maintenance of transformers, manufacture of…” Source: RevenueBase Database · checked Sep 22, 2026
20	Liquitec Transformadores	Partial evidence	Araraquara, BrazilHQ checked Sep 22, 2026	11-50	14 contacts →
	Partial evidence “A Liquitec, fundada em 2016, é uma empresa empenhada em oferecer confiabilidade aos transformadores de energia.” Source: RevenueBase Database · checked Sep 22, 2026
21	Danco Powertec	Partial evidence	Jaraguá Do Sul, BrazilHQ checked Sep 22, 2026	51-200	14 contacts →
	Partial evidence “Há mais de 20 anos no mercado, a Danco Powertec \| Powertec é especialista em manutenção de motores elétricos até 2500CV, transformadores, bombas submersíveis, geradores e…” Source: RevenueBase Database · checked Sep 22, 2026
22	Eurovolt Energy Service	Indirect evidence	Londrina, BrazilHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “A EUROVOLT é uma empresa de engenharia e serviços que oferece soluções “turn-key” para gestão de ativos da área elétrica.” Source: RevenueBase Database · checked Sep 22, 2026
23	Lorencini Brasil	Partial evidence	São Bernardo Do Campo, BrazilHQ checked Sep 22, 2026	11-50	13 contacts →
	Partial evidence “Atividades de Analises e Diagnoses de Óleos e Fluidos Isolantes de Transformadores de Potencia em Laboratorio de Alta Tecnologia e próprio; com Engenheiro e Tecnicos em Quimica…” Source: RevenueBase Database · checked Sep 22, 2026
24	Utili Energia	Indirect evidence	Nova Lima, BrazilHQ checked Sep 22, 2026	1-10	12 contacts →
	Indirect evidence “A UTILI ENERGIA foi criada para atender às demandas do setor elétrico e de manutenção industrial.” Source: RevenueBase Database · checked Sep 22, 2026
25	Gensep	Indirect evidence	Mirassol, BrazilHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “Fundada em 2014, a Gensep é uma empresa de engenharia elétrica especializada em sistemas elétricos de potência, com atuação em proteção, controle e automação.” Source: RevenueBase Database · checked Sep 22, 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: transformer maintenance 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 transformer maintenance companies.
Partial evidence: Its own public description names part of transformer maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transformer maintenance 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 445 transformer maintenance companies based in Brazil

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Transformer maintenance companies based in Brazil at a glance

As of Sep 22, 2026

14.5%Verified-email coverage

15.3Average contacts per company

11-50Median size (employees)

10.1%Largest-city concentration · Sao Paulo

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

190

11-50

183

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 445 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 transformer maintenance 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 “transformer maintenance 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 transformer maintenance 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 transformer maintenance 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, 992 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 22, 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.

Transformer maintenance companies by metro

Transformer maintenance companies in Sao Paulo45

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 transformer maintenance 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 transformer maintenance companies are there based in Brazil?

RevenueBase identified 445 transformer maintenance 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 transformer maintenance companies?

Sao Paulo leads with 45 headquartered companies, followed by Curitiba (13) and Jundiai (13).

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 992 verified decision-maker contacts tracked across these 445 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 22, 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.