Company lists · Data refreshed November 2026

Top 25 Electrical testing service providers based in Brazil

RevenueBase identified 883 company matches for electrical testing service providers associated with Brazil as of November 2026 and tracks 8,505 professional contacts across them, including 951 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for electrical testing service providers 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
883Companies
8,505Contacts tracked
951Verified emails
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The 25 largest electrical testing service providers based in Brazil

Ranked by team size
Top 25 of 883 company matches for electrical testing service providers 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 matchBelo Horizonte, BrazilHQ recorded Nov 6, 20265,001-10,0001,929 contacts →

Exact match

“A Engelmig foi fundada em 1985 com o objetivo de prestar serviços de engenharia em redes de distribuição de energia elétrica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSerra, BrazilHQ recorded Nov 6, 2026501-1,000443 contacts →

Exact match

“CONTRATOS DE MANUTENÇÃO A Tereme oferece a seus clientes soluções de manutenção global ou parcial dos equipamentos e instalações elétricas de uma planta industrial.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAtibaia, BrazilHQ recorded Nov 6, 2026201-500337 contacts →

Exact match

“A DEKRA atua no campo da segurança há quase 100 anos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact 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
5Exact matchJoinville, BrazilHQ recorded Nov 6, 202651-200119 contacts →

Exact match

“ELECTRICAL ENGINEERING: Commercial and industrial projects and consultancy serving our customers with excellence, agility and high level of quality; ELECTRICAL INSTALLATIONS AND…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202651-200116 contacts →

Exact match

“Com 25 anos de atuação no mercado, a Iosi Energia oferece serviços completos em engenharia elétrica, automação e telecomunicações, atendendo as principais demandas de usinas…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchItupeva, BrazilHQ recorded Nov 6, 2026201-500106 contacts →

Exact match

“Construção de subestações Projetos Ensaios elétricos Comissionamento Manutenção Montagem de equipamentos Enchimento de gás SF6 Venda e aluguel de equipamentos Retrofit de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchMacaé, BrazilHQ recorded Nov 6, 202611-5067 contacts →

Exact match

“Situada próximo às instalações da Petrobrás, desde o ano de 1993, executando serviços elétricos nas áreas industrial e comercial, devido às necessidades do mercado entramos na…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Desde 2008 no mercado, somos especialistas em calibração, manutenção preventiva e corretiva, teste de segurança elétrica e qualificação térmica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchPalmas, BrazilHQ recorded Nov 6, 2026501-1,00056 contacts →

Exact match

“Há quase três décadas, a Chico Elétro Instaladora (Puton & Dalmolin Ltda) consolida sua excelência na prestação de serviços em Engenharia Elétrica, atuando nos estados do Paraná…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBlumenau, BrazilHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“ON7 Engenharia | Excelência em projetos de engenharia elétrica Com mais de 20 anos de expertise, a ON7 Engenharia é reconhecida pelo atendimento especializado no setor de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSao Bernardo Do Campo, BrazilHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“Empresa inovadora e moderna, que possui como atividade principal a prestação de serviços especializados em Engenharia Elétrica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSão Bernardo Do Campo, BrazilHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Manutenção preditiva, preventiva e corretiva em subestações de baixa, média e alta tensão.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchFortaleza, BrazilHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Olá e seja bem-vindo à Exata Serviços!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCamaçari, BrazilHQ recorded Nov 6, 2026n/a33 contacts →

Exact match

“Empresa especializada em soluções elétricas: Service- Reparo em disjuntores e chaves (BT, MT, AT)- Reparo em relés de proteção - Manutenção preventiva e corretiva na subestação -…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSumaré, BrazilHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“A Electrosol atua no mercado desde 2010 e tem como objetivo, oferecer aos clientes soluções em diversas áreas da engenharia elétrica, instalações industriais e fornecimento de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSorocaba, BrazilHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Há 25 anos no mercado, somos especialistas em soluções completas para o setor elétrico.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“Somos uma empresa de engenharia elétrica especializada em subestações de média e alta tensão.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“A WBecker é uma empresa de Engenharia Elétrica que oferece serviços de alta qualidade, atuando com projetos e soluções desde a elaboração até a implantação.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchRibeirão Preto, BrazilHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“A Eletrofase é a parceira ideal em engenharia elétrica, consolidada ao longo dos anos pela entrega de soluções personalizadas e de alto impacto para o setor industrial e comercial.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact 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
25Exact matchSão José Dos Quatro Marcos, BrazilHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Fundada em São José dos Quatro Marcos, Mato Grosso, a Ulian Engenharia apresenta mais de 20 anos de experiência no setor de energia elétrica, atualmente nossa carta de serviço é…”

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

Showing 25 of 883 electrical testing service providers based in Brazil

See the full list, filter by size, metro and specialty, and access 951 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical testing service providers based in Brazil at a glance

As of Nov 6, 2026
11.2%Verified-email coverage
9.6Average contacts per company
1-10Median size (employees)
11.4%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
550
11-50
252
51-200
55
201-500
6
501-1,000
3
5,001-10,000
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 883 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 testing service providers” 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 951 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.

Electrical testing service providers by metro

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 testing service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical testing service providers are there based in Brazil?

RevenueBase identified 883 company matches for electrical testing service providers 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?

Engelmig Energia tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electrical testing service providers?

Sao Paulo leads with 101 company records, followed by Rio De Janeiro (33) and Curitiba (28).

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 951 professional contacts with verified work emails tracked across these 883 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.