Company lists · Data refreshed November 2026

Top 15 Transformer insulators suppliers based in Brazil

RevenueBase identified 67 company matches for transformer insulators suppliers associated with Brazil as of November 2026 and tracks 1,925 professional contacts across them, including 226 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for transformer insulators suppliers 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 November 2, 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 Nov 2, 2026 How this list was built
67Companies
1,925Contacts tracked
226Verified emails
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The 15 largest transformer insulators suppliers based in Brazil

Ranked by team size
Top 15 of 67 company matches for transformer insulators suppliers based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 2, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCuiabá, BrazilHQ recorded Nov 2, 20261,001-5,000274 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 · Nov 2, 2026 · View company records in RevenueBase
2Exact matchSao Paulo, BrazilHQ recorded Nov 2, 2026201-500198 contacts →

Exact match

“Maurizio, fundada em 1956, consolidou-se como referência na fabricação de equipamentos de alta tensão para linhas de Distribuição, Transmissão, Subestação e Smart Grids.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
3Exact matchItu, BrazilHQ recorded Nov 2, 2026201-500153 contacts →

Exact match

“ISOLET is a company based out of Rod.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
4Exact matchCornelio Procopio, BrazilHQ recorded Nov 2, 2026501-1,000141 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 · Nov 2, 2026 · View company records in RevenueBase
5Exact matchMassaranduba, BrazilHQ recorded Nov 2, 2026201-500112 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 · Nov 2, 2026 · View company records in RevenueBase
6Exact matchTimbó, BrazilHQ recorded Nov 2, 2026201-500110 contacts →

Exact match

“Germer é resultado de contínuos investimentos em modernização tecnológica, pesquisas e treinamentos ao longo de mais de 40 anos de existência.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
7Exact matchPedreira Sp, BrazilHQ recorded Nov 2, 2026201-50071 contacts →

Exact match

“A Cerâmica Santa Terezinha S.A- CST - localizada em Pedreira a 150 KM de São Paulo.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
8Exact matchBlumenau, BrazilHQ recorded Nov 2, 2026201-50069 contacts →

Exact match

“A RVB Isolantes para transformadores LTDA.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
9Exact matchItupeva, BrazilHQ recorded Nov 2, 202651-20037 contacts →

Exact match

“Empresa fundada em 2004, a ISOLETRI converte materiais isolantes a base de celulose para isolação de transformadores, reatores e equipamentos elétricos para baixa, média e alta…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
10Exact matchCampinas, BrazilHQ recorded Nov 2, 202611-5031 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 · Nov 2, 2026 · View company records in RevenueBase
11Exact matchSao Bernardo Do Campo, BrazilHQ recorded Nov 2, 202651-20011 contacts →

Exact match

“A Sellux Materiais Elétricos, estabelecida em 2013 em São Bernardo do Campo, São Paulo, é uma empresa pioneira na fabricação de materiais elétricos de alta qualidade.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
12Exact matchSantana De Parnaíba, BrazilHQ recorded Nov 2, 202611-507 contacts →

Exact match

“A Imec Isolantes foi fundada em 1998 com sede própria, localizada no município de Santana de Parnaíba - São Paulo, em uma planta de 2.850mts, com capacidade para atender todo o…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
13Exact matchMairiporã, BrazilHQ recorded Nov 2, 202611-504 contacts →

Exact match

“Tetralite, uma indústria voltada a soluções de isolamento térmico e elétrico, 100% nacional.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact matchSao Bernardo Do Campo, BrazilHQ recorded Nov 2, 202651-2003 contacts →

Exact match

“A KREMPEL Brasil é líder no mercado brasileiro no setor de isolação elétrica, fornecendo soluções de qualidade e eficiência, através de tecnologias consolidadas para laminação…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
15Exact matchDiadema, BrazilHQ recorded Nov 2, 20261-102 contacts →

Exact match

“Somos fabricantes de chaves seccionadoras, fusíveis e isoladores para aplicação em cubículos de média tensão.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase

Showing 15 of 67 transformer insulators suppliers based in Brazil

See the full list, filter by size, metro and specialty, and access 226 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformer insulators suppliers based in Brazil at a glance

As of Nov 2, 2026
11.7%Verified-email coverage
28.7Average contacts per company
11-50Median size (employees)
17.9%Largest-city concentration · Sao Paulo
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
15
11-50
24
51-200
14
201-500
8
501-1,000
3
1,001-5,000
1

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 67 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 “transformer insulators suppliers” 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 226 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 November 2, 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 “transformer insulators suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transformer insulators suppliers are there based in Brazil?

RevenueBase identified 67 company matches for transformer insulators suppliers associated with Brazil as of November 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?

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

Which city has the most transformer insulators suppliers?

Sao Paulo leads with 12 company records, followed by Blumenau (4) and Mogi Mirim (4).

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 226 professional contacts with verified work emails tracked across these 67 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 November 2, 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.