Company lists · Data refreshed September 2026

Top 23 Distribution transformer manufacturers based in Brazil

RevenueBase identified 140 distribution transformer manufacturers headquartered in Brazil as of September 2026 and tracks 3,062 professional contacts across them, including 321 with verified work emails. Sao Paulo is the largest hub.

This list covers distribution transformer 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 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
140Companies
3,062Contacts tracked
321Verified emails
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The 23 largest distribution transformer manufacturers based in Brazil

Ranked by team size
Top 23 of 140 distribution transformer manufacturers 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 distribution transformer 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceItápolis, BrazilHQ checked Sep 16, 20261,001-5,000350 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceCuiabá, BrazilHQ checked Sep 16, 20261,001-5,000230 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 16, 2026
3Indirect evidenceBragança Paulista, BrazilHQ checked Sep 16, 2026201-500218 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 16, 2026
4Partial evidenceManaus, BrazilHQ checked Sep 16, 2026201-500209 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 16, 2026
5Strong evidenceItajubá, BrazilHQ checked Sep 16, 2026201-500206 contacts →

Strong evidence

“Balteau Produtos Elétricos LTDA is a traditional manufacturer of Instrument Transformers and Metering Device Set in Itajubá-MG, Brazil.”

Source: RevenueBase Database · checked Sep 16, 2026
6Strong evidenceMassaranduba, BrazilHQ checked Sep 16, 2026501-1,000171 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceBirigui, BrazilHQ checked Sep 16, 2026501-1,000171 contacts →

Indirect evidence

“Somos a ITB, uma empresa ligada no Futuro.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceItu, BrazilHQ checked Sep 16, 2026201-500134 contacts →

Indirect evidence

“ISOLET is a company based out of Rod.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceCornelio Procopio, BrazilHQ checked Sep 16, 2026501-1,000119 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 16, 2026
10Indirect evidenceSão José Dos Pinhais, BrazilHQ checked Sep 16, 202651-20049 contacts →

Indirect evidence

“O grupo TOROID foi iniciado em meados dos anos 80, nos Estados Unidos, pelo engenheiro e mestre Gunnar Ennerfelt.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceSao Paulo, BrazilHQ checked Sep 16, 202651-20042 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceCuritiba, BrazilHQ checked Sep 16, 202611-5034 contacts →

Indirect evidence

“We are a company that has been operating in the LOW, MEDIUM, HIGH VOLTAGE market for 20 years selling high quality products, through our partners NKT, RITZ, ENSTO, SIBA and…”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceSuzano, BrazilHQ checked Sep 16, 202651-20032 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceJundiaí, BrazilHQ checked Sep 16, 202651-20031 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 16, 2026
15Indirect evidenceGoiânia, BrazilHQ checked Sep 16, 202611-5029 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceCampinas, BrazilHQ checked Sep 16, 202611-5026 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 16, 2026
17Indirect evidenceMandirituba, BrazilHQ checked Sep 16, 202651-20020 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceBlumenau, BrazilHQ checked Sep 16, 202611-5015 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidencePinhais, BrazilHQ checked Sep 16, 202611-5015 contacts →

Indirect evidence

“A Entran Indústria de Equipamentos foi fundada em 1988 na cidade de Curitiba, Paraná.”

Source: RevenueBase Database · checked Sep 16, 2026
20Strong evidenceSão José Do Rio Pardo, BrazilHQ checked Sep 16, 202651-2007 contacts →

Strong evidence

“Founded in 1995, Riotrafo has been providing innovative solutions in the Electricity Distribution transformers segment in voltage class 15 kV, 25kV and 36,2 kV.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidencePinhais, BrazilHQ checked Sep 16, 202651-2006 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceBirigui, BrazilHQ checked Sep 16, 20261-104 contacts →

Partial evidence

“We specialize in the operation, maintenance, and overhaul of electrical equipment, with a focus on voltage regulators and transformers.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceJundiai, BrazilHQ checked Sep 16, 20261-103 contacts →

Partial evidence

“A TRAFO MANUTENÇÃO é uma empresa de prestação de serviços focada em manutenções preventivas e corretivas, montagem e comissionamentos de transformadores de distribuição e de…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 23 of 140 distribution transformer manufacturers based in Brazil

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Distribution transformer manufacturers based in Brazil at a glance

As of Sep 16, 2026
10.5%Verified-email coverage
21.9Average contacts per company
11-50Median size (employees)
13.6%Largest-city concentration · Sao Paulo
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
38
11-50
51
51-200
34
201-500
6
501-1,000
4
1,001-5,000
2

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 140 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 distribution transformer 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 “distribution transformer 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 distribution transformer 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 distribution transformer 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, 321 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.

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 distribution transformer 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 distribution transformer manufacturers are there based in Brazil?

RevenueBase identified 140 distribution transformer 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?

Itaipu Transformadores, headquartered in Itapolis, tops this list with the largest team on record.

Which city has the most distribution transformer manufacturers?

Sao Paulo leads with 19 headquartered companies, followed by Jundiai (7) and Blumenau (5).

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 321 verified decision-maker contacts tracked across these 140 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.