Company lists · Data refreshed November 2026

Top 14 Transformer oil testing services based in Brazil

RevenueBase identified 49 company matches for transformer oil testing services associated with Brazil as of November 2026 and tracks 498 professional contacts across them, including 41 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for transformer oil 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 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
49Companies
498Contacts tracked
41Verified emails
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The 14 largest transformer oil testing services based in Brazil

Ranked by team size
Top 14 of 49 company matches for transformer oil testing services 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 matchMonte Mor, BrazilHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchPradópolis, BrazilHQ recorded Nov 2, 202611-5030 contacts →

Exact match

“A TRATLUB faz serviços de tratamento, filtragem e purificação de vários tipos óleo e viscosidade como isolante, hidráulico, lubrificante e outros sob consulta.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
4Exact matchAraraquara, BrazilHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
5Exact matchSão Bernardo Do Campo, BrazilHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
6Exact matchSão Joaquim De Bicas, BrazilHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
7Exact matchCampinas, BrazilHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
8Exact matchBalneário Camboriú, BrazilHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
9Exact matchGuarulhos, BrazilHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
10Exact matchBelo Horizonte, BrazilHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
11Exact matchBlumenau, BrazilHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
12Exact matchJaguariúna, BrazilHQ recorded Nov 2, 202611-504 contacts →

Exact match

“A Ecofluid é uma empresa de excelência na fabricação de equipamentos para filtragem e de regeneração de óleo mineral isolante para transformadores.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
13Exact matchJundiai, BrazilHQ recorded Nov 2, 20261-103 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact matchCuritiba, BrazilHQ recorded Nov 2, 20261-101 contacts →

Exact match

“A OILFLEX promove atendimento especializado na área de óleos isolantes para equipamentos elétricos, na gestão de dados técnicos na área de química e de materiais, visando a…”

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

Showing 14 of 49 transformer oil testing services based in Brazil

See the full list, filter by size, metro and specialty, and access 41 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformer oil testing services based in Brazil at a glance

As of Nov 2, 2026
8.2%Verified-email coverage
10.2Average contacts per company
11-50Median size (employees)
10.2%Largest-city concentration · Sao Paulo
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
28
51-200
3

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 49 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 oil 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 41 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 oil testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 49 company matches for transformer oil 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?

Brastrafo DO Brasil Ltda tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most transformer oil testing services?

Sao Paulo leads with 5 company records, followed by Campinas (4) and Contagem (3).

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 41 professional contacts with verified work emails tracked across these 49 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.