Company lists · Data refreshed November 2026

Top 16 Electrical fault detection services based in Brazil

RevenueBase identified 162 company matches for electrical fault detection services associated with Brazil as of November 2026 and tracks 857 professional contacts across them, including 49 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for electrical fault detection 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
162Companies
857Contacts tracked
49Verified emails
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The 16 largest electrical fault detection services based in Brazil

Ranked by team size
Top 16 of 162 company matches for electrical fault detection 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 matchCatu, BrazilHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“Soluções completas em engenharia elétrica, automação, montagem de subestações, SPDA e painéis industriais.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPiracicaba, BrazilHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“Instalações elétricas / Manutenção elétrica / Projetos elétricos / Análises e Ensaios / SPDA / Termografia / Retrofit / Montagens industriais / Automação / Treinamentos”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchJundiaí, BrazilHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Atuamos no segmento de baixa, media e alta tensão, manutenção elétrica preventiva e corretiva, manutenção e venda de grupo moto gerador, Manutenção e projetos de cabines…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact 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
5Exact 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
6Exact matchBelo Horizonte, BrazilHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Somos uma das melhores empresas de manutenção e instalação em subestação de energia conforme norma vigente de segurança em instalação e serviços em eletricidade, de Minas Gerais.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact matchItapevi, BrazilHQ recorded Nov 6, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Atuamos desde 2010 no setor de engenharia elétrica com soluções em diagnostico, projetos, inspeções, laudos e consultoria, com inovação, qualidade e eficiência.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchFlorianopolis, BrazilHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Serviços em engenharia elétrica - NR10 Levantamento de Areas Classificadas Laudo de Inspeção das Instalações Elétricas Laudo de Inspeção SPDA Elaboração de procedimentos…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSorocaba, BrazilHQ recorded Nov 6, 202611-502 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchJundiaí, BrazilHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Na JundSmart, nossa credibilidade não é teórica; ela nasce da nossa atuação diária no chão de fábrica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchRio Das Ostras, BrazilHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Headquartered in Rio das Ostras - RJ, in the country's largest oil hub, our company specializes in projects, inspections and reports of lightning protection systems, in addition…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSuzano, BrazilHQ recorded Nov 6, 20261-101 contacts →

Exact match

“A CND (Companhia Nacional de Diagnósticos) é uma empresa especialista em diagnóstico de cabos isolados e em localização de falhas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBelo Horizonte, BrazilHQ recorded Nov 6, 20261-101 contacts →

Exact match

“A EngPositivo fornece aos clientes serviço especializado de engenharia na área se ensaios elétricos avançados para máquinas elétricas, cabos isolados, sistemas de aterramento e…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchGuarulhos, BrazilHQ recorded Nov 6, 20261-101 contacts →

Exact match

“A Elétrica Guarulhos conta com profissionais que somam mais de 14 anos de experiência no mercado de serviços elétricos, atuando em instalações elétrica de Baixa e Média tensão…”

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

Showing 16 of 162 electrical fault detection services based in Brazil

See the full list, filter by size, metro and specialty, and access 49 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical fault detection services based in Brazil at a glance

As of Nov 6, 2026
5.7%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
11.7%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
110
11-50
41
51-200
7
201-500
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 162 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 “electrical fault detection 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 49 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 “electrical fault detection services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical fault detection services are there based in Brazil?

RevenueBase identified 162 company matches for electrical fault detection 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?

Austral Engenharia Especialista EM Projetos, Montagem E Manutenção Industrial tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electrical fault detection services?

Sao Paulo leads with 19 company records, followed by Curitiba (6) and Rio De Janeiro (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 49 professional contacts with verified work emails tracked across these 162 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.