Company lists · Data refreshed November 2026

Top 25 Power transformer testing services based in Brazil

RevenueBase identified 209 company matches for power transformer testing services associated with Brazil as of November 2026 and tracks 2,608 professional contacts across them, including 189 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for power transformer testing services 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 6, 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 6, 2026 How this list was built
209Companies
2,608Contacts tracked
189Verified emails
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The 25 largest power transformer testing services based in Brazil

Ranked by team size
Top 25 of 209 company matches for power transformer testing services based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchBragança Paulista, BrazilHQ recorded Nov 6, 2026201-500229 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchVinhedo, BrazilHQ recorded Nov 6, 202651-200165 contacts →

Exact match

“Oferecemos soluções em inspeção e ensaios não destrutivos convencionais e não convencionais, e serviços metalúrgicos laboratoriais.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSerra, BrazilHQ recorded Nov 6, 2026501-1,000147 contacts →

Exact match

“Estamos localizados em moderno centro de tecnologia de ensaios não destrutivos (CT-END) no município Serra/ES.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCornelio Procopio, BrazilHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
5Exact matchAraxá, BrazilHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Empresa dedicada à realização de serviços de inspeção de equipamentos industriais, especialista em ensaios não destrutivos, inspeções periódicas de segurança e avaliações de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMonte Mor, BrazilHQ recorded Nov 6, 202651-20043 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSanto Amaro, BrazilHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Somos uma empresa especializada em Caldeiraria, Inspeções Técnicas Industriais.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchJundiaí, BrazilHQ recorded Nov 6, 202651-20034 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCampinas, BrazilHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
10Exact matchJundiaí, BrazilHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Há mais de 20 anos, oferecemos consultoria e assessoria em inspeções, laudos e testes de equipamentos e instalações.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAraraquara, BrazilHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“A Liquitec, fundada em 2016, é uma empresa empenhada em oferecer confiabilidade aos transformadores de energia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSão Bernardo Do Campo, BrazilHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSão Joaquim De Bicas, BrazilHQ recorded Nov 6, 202611-5014 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAracaju, BrazilHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“ICT – Engenharia e Inspeção, empresa especializada em soluções ágeis, é proporcionar serviços de inspeção e ensaios não destrutivos com confiabilidade, qualidade e segurança…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondrina, BrazilHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“A EUROVOLT é uma empresa de engenharia e serviços que oferece soluções “turn-key” para gestão de ativos da área elétrica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCampinas, BrazilHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“MGM is a company focused on providing analysis and consulting services regarding insulating fluids and materials.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAraras, BrazilHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Oferecemos serviços de inspeção, diagnóstico e monitoramento industrial.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBalneário Camboriú, BrazilHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“A Eleva Electric destaca-se atuando no segmento de ensaios elétricos em equipamentos de pátio em subestações de alta tensão.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGuarulhos, BrazilHQ recorded Nov 6, 20261-109 contacts →

Exact match

“A Nova Trafo é uma empresa que atua no segmento de Transformadores e Reatores, e oferece serviços de Diagnóstico, Treinamentos, Diligenciamento, Engenharia de Aplicação e Gestão…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBelo Horizonte, BrazilHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Engeoil - Engenharia de Processos e Análise de Óleos is a predicitive and prescriptive oil analysis lab for industrial equipments/aircrafts/vehicules.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchItajubá, BrazilHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Somos a SafeGrid, especialistas em comissionamento, ensaios e diagnóstico de equipamentos elétricos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBlumenau, BrazilHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Consultoria e Serviços de Engenharia para Cálculo e Projeto de Transformadores e Reatores e nos fenômenos envolvidos na operação destes equipamentos no Sistema Elétrico Nacional.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCampinas, BrazilHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Procurando inovar e sempre atender de forma profissional e ética os nossos clientes e fornecedores, a APR POWER procura sempre melhorar e estar andando em conjunto com as…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchPinhais, BrazilHQ recorded Nov 6, 202651-2006 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchFortaleza, BrazilHQ recorded Nov 6, 202611-505 contacts →

Exact match

“A THUNDER ENGENHARIA LTDA é uma empresa de Engenharia Elétrica de manutenção e serviços técnicos especializados em Alta e Média que preza pela qualidade dos serviços oferecidos…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 209 power transformer testing services based in Brazil

See the full list, filter by size, metro and specialty, and access 189 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Power transformer testing services based in Brazil at a glance

As of Nov 6, 2026
7.2%Verified-email coverage
12.5Average contacts per company
11-50Median size (employees)
11.5%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
79
11-50
88
51-200
32
201-500
1
501-1,000
4

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 209 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 “power transformer testing services” 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 189 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 6, 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 “power transformer testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many power transformer testing services are there based in Brazil?

RevenueBase identified 209 company matches for power transformer testing services 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?

TDM Service & Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most power transformer testing services?

Sao Paulo leads with 24 company records, followed by Jundiai (12) and Campinas (6).

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 189 professional contacts with verified work emails tracked across these 209 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 6, 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.