Company lists · Data refreshed October 2026

Top 25 Electric transformer manufacturers based in Brazil

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

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 200 companies tracked

RevenueBase identified 200 company matches for electric transformer manufacturers associated with Brazil as of October 2026 and tracks 4,464 professional contacts across them, including 435 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for electric transformer manufacturers associated with Brazil, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 12, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 12, 2026 How this list was built

200Companies

4,464Contacts tracked

435Verified emails

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The 25 largest electric transformer manufacturers based in Brazil

Ranked by team size

Top 25 of 200 company matches for electric transformer manufacturers based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Itaipu Transformadores	Exact match	Itápolis, BrazilHQ recorded Oct 12, 2026	1,001-5,000	377 contacts →
	Exact match “Com mais de 50 anos de história, a Itaipu Transformadores é uma das principais referências na fabricação de transformadores de potência no Brasil e no exterior.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Trael Transformadores Elétricos Ltda	Exact match	Cuiabá, BrazilHQ recorded Oct 12, 2026	1,001-5,000	259 contacts →
	Exact match “A TRAEL iniciou suas atividades em 1992 com a fabricação de transformadores de distribuição, força e especiais.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	TDM Service & Solutions	Exact match	Bragança Paulista, BrazilHQ recorded Oct 12, 2026	201-500	225 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Balteau Produtos Elétricos Ltda - Grupo WEG	Exact match	Itajubá, BrazilHQ recorded Oct 12, 2026	201-500	220 contacts →
	Exact match “Balteau Produtos Elétricos LTDA is a traditional manufacturer of Instrument Transformers and Metering Device Set in Itajubá-MG, Brazil.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	ITAM	Exact match	Manaus, BrazilHQ recorded Oct 12, 2026	201-500	217 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	ITB Equipamentos Elétricos	Exact match	Birigui, BrazilHQ recorded Oct 12, 2026	501-1,000	189 contacts →
	Exact match “Somos a ITB, uma empresa ligada no Futuro.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Tamura Brasil	Exact match	Massaranduba, BrazilHQ recorded Oct 12, 2026	501-1,000	177 contacts →
	Exact match “A INDUSUL For 20 years in the global market for electrical and electronic products, Indusul is a Brazilian manufacturer of dry-type, single and three-phase transformers, with two…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Isolet	Exact match	Itu, BrazilHQ recorded Oct 12, 2026	201-500	146 contacts →
	Exact match “ISOLET is a company based out of Rod.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Comtrafo	Exact match	Cornelio Procopio, BrazilHQ recorded Oct 12, 2026	501-1,000	140 contacts →
	Exact match “A COMTRAFO atua desde 1994 produzindo transformadores de distribuição e força para o mercado nacional e internacional.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Tamura Indusul	Exact match	Massaranduba, BrazilHQ recorded Oct 12, 2026	201-500	104 contacts →
	Exact match “Estamos em transição, siga: Estamos no mercado desde 1996, produzindo com qualidade e confiabilidade transformadores, indutores, filtros e toda uma linha de produtos magnéticos a…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Ctrltech Conversão DE Energia	Exact match	Osasco, BrazilHQ recorded Oct 12, 2026	51-200	89 contacts →
	Exact match “A CTRLTECH está em atividade desde se dedicando à fabricação de equipamentos elétricos e eletromecânicos de conversão de energia para diversos segmentos.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Toroid DO Brasil	Exact match	São José Dos Pinhais, BrazilHQ recorded Oct 12, 2026	51-200	58 contacts →
	Exact match “O grupo TOROID foi iniciado em meados dos anos 80, nos Estados Unidos, pelo engenheiro e mestre Gunnar Ennerfelt.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Brastrafo DO Brasil Ltda	Exact match	Monte Mor, BrazilHQ recorded Oct 12, 2026	51-200	43 contacts →
	Exact match “Fundada em 01/07/1997, a Brastrafo do Brasil é uma empresa nacional que nasceu com o propósito de atender o setor elétrico, em todos os seus segmentos (geração, transmissão…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Polienge Soluções EM Energia	Exact match	Suzano, BrazilHQ recorded Oct 12, 2026	51-200	39 contacts →
	Exact match “Com mais de 30 anos de expertise, a Polienge atua no desenvolvimento e fabricação de Transformadores, Indutores e Quadros e Painéis Elétricos, além de soluções especiais para…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Brasformer Braspel	Exact match	Sao Paulo, BrazilHQ recorded Oct 12, 2026	51-200	37 contacts →
	Exact match “Empresa brasileira com 37 anos e especializada em transformadores de Potencial e de Corrente a seco em epoxi de 0,6 kV a 36,2kV, aplicados em medição e proteção de sistemas…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Transformadores Jundiaí	Exact match	Jundiaí, BrazilHQ recorded Oct 12, 2026	51-200	34 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Contatus Eletricidade	Exact match	Paulínia, BrazilHQ recorded Oct 12, 2026	51-200	34 contacts →
	Exact match “Contatus Eletricidade is an industrial electrical assembly company based at Rua Francisco Lucherini, 296, Betel, Paulinia, São Paulo, Brazil, CEP 13148-162” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Trafocare Ltda	Exact match	Campinas, BrazilHQ recorded Oct 12, 2026	11-50	31 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	DAX Energy Equipamentos E Sistemas	Exact match	Mandirituba, BrazilHQ recorded Oct 12, 2026	51-200	25 contacts →
	Exact match “Fundada em 2015, a partir da união de profissionais com mais de 30 anos de experiência no mercado de energia e na fabricação de equipamentos eletromecânicos voltados para…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Entran	Exact match	Pinhais, BrazilHQ recorded Oct 12, 2026	11-50	17 contacts →
	Exact match “A Entran Indústria de Equipamentos foi fundada em 1988 na cidade de Curitiba, Paraná.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Mgtrafos	Exact match	São Joaquim De Bicas, BrazilHQ recorded Oct 12, 2026	11-50	14 contacts →
	Exact match “Formed by experienced professionals in the Brazilian electric sector, we are a group of companies specialized in analysis, diagnostics, maintenance of transformers, manufacture of…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	RVB Isolantes Para Transformadores	Exact match	Blumenau, BrazilHQ recorded Oct 12, 2026	11-50	14 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Sigmasys Engenharia	Exact match	Sorocaba, BrazilHQ recorded Oct 12, 2026	11-50	12 contacts →
	Exact match “A Sigmasys é uma empresa de engenharia voltada para o setor elétrico industrial com foco em clientes de média e alta tensão.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Adftronik Indústria	Exact match	Blumenau, BrazilHQ recorded Oct 12, 2026	11-50	12 contacts →
	Exact match “Com dezesseis anos de mercado a Adftronik atua na fabricação de estabilizadores de tensão monofásicos e trifásicos de até 150Kva, no break`s, transformadores monofásicos e…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Mecol Engenharia	Exact match	Jataí, BrazilHQ recorded Oct 12, 2026	51-200	11 contacts →
	Exact match “Instalações Elétricas Industriais Usinas Fotovoltaicas Redes Elétricas M.T 34,5kV e 13,8kV Subestações Transformadoras Automação Industrial.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “electric transformer manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 200 electric transformer manufacturers based in Brazil

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Electric transformer manufacturers based in Brazil at a glance

As of Oct 12, 2026

9.7%Verified-email coverage

22.3Average contacts per company

11-50Median size (employees)

12.5%Largest-city concentration · Sao Paulo

Oct 12, 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 200 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Brazil whose business descriptions match “electric transformer manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 435 professional contacts with verified work emails across the full matched dataset. 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 October 12, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “electric transformer manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electric transformer manufacturers are there based in Brazil?

RevenueBase identified 200 company matches for electric transformer manufacturers associated with Brazil as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Itaipu Transformadores tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electric transformer manufacturers?

Sao Paulo leads with 25 company records, followed by Blumenau (9) and Jundiai (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 435 professional contacts with verified work emails tracked across these 200 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 12, 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 SmartSearch, 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.