Company lists · Data refreshed October 2026

Top 25 Panel testing and maintenance contractors based in Brazil

Name: Panel testing and maintenance contractors based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 22, 2026 422 companies tracked

RevenueBase identified 422 company matches for panel testing and maintenance contractors associated with Brazil as of October 2026 and tracks 2,608 professional contacts across them, including 61 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for panel testing and maintenance contractors 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 October 22, 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 Oct 22, 2026 How this list was built

422Companies

2,608Contacts tracked

61Verified emails

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The 25 largest panel testing and maintenance contractors based in Brazil

Ranked by team size

Top 25 of 422 company matches for panel testing and maintenance contractors based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Indumax Sistemas DE Energia	Exact match	Itumbiara, BrazilHQ recorded Oct 22, 2026	51-200	67 contacts →
	Exact match “Na Indumax, somos especialistas em obras industriais elétricas, painéis elétricos e automação industrial, entregando soluções que impulsionam a eficiência, segurança e inovação no…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2	MP Engenharia Elétrica	Exact match	Piracicaba, BrazilHQ recorded Oct 22, 2026	51-200	50 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 · Oct 22, 2026 · View company records in RevenueBase
3	Brastrafo DO Brasil Ltda	Exact match	Monte Mor, BrazilHQ recorded Oct 22, 2026	51-200	43 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 · Oct 22, 2026 · View company records in RevenueBase
4	Elecman Engenharia	Exact match	Santos, BrazilHQ recorded Oct 22, 2026	11-50	32 contacts →
	Exact match “Empresa de Engenharia Elétrica com soluções na áreas de Manutenção, Fabricação de Painéis, Projetos, Laudos e Consultoria.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5	PIX Engenharia E Serviços	Exact match	Camaçari, BrazilHQ recorded Oct 22, 2026	1-10	28 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 · Oct 22, 2026 · View company records in RevenueBase
6	Eletrofase	Exact match	Ribeirão Preto, BrazilHQ recorded Oct 22, 2026	11-50	21 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 · Oct 22, 2026 · View company records in RevenueBase
7	DAL Comandos Elétricos	Exact match	Indaiatuba, BrazilHQ recorded Oct 22, 2026	51-200	17 contacts →
	Exact match “A DAL Comandos Elétricos foi fundada em 1995 e com muita convicção e qualidade em seus trabalhos realizados, logo se destacou em sua região, vindo então a conquistar mercado em…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8	Turbo Drive Manutencao E Consultoria	Exact match	Jaragua Do Sul, BrazilHQ recorded Oct 22, 2026	11-50	16 contacts →
	Exact match “Fundada em 2005 em Jaraguá do Sul - SC, a TURBO DRIVE MANUTENÇÃO E CONSULTORIA LTDA, tem como missão, fornecer a seus clientes produtos e serviços especializados na área de…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9	Gensep	Exact match	Mirassol, BrazilHQ recorded Oct 22, 2026	1-10	11 contacts →
	Exact match “Fundada em 2014, a Gensep é uma empresa de engenharia elétrica especializada em sistemas elétricos de potência, com atuação em proteção, controle e automação.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10	Power Works	Exact match	Santos, BrazilHQ recorded Oct 22, 2026	11-50	9 contacts →
	Exact match “A POWER WORKS ®, foi fundada em 09/06/2003 para ser uma empresa de Engenharia Elétrica com atuação na área de prestação de serviços em engenharia de campo, comissionamentos…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11	VBE Engenharia & Consultoria	Exact match	Osasco, BrazilHQ recorded Oct 22, 2026	11-50	7 contacts →
	Exact match “Há 17 anos, a VBE Engenharia & Consultoria projeta, executa e mantém instalações elétricas para indústria, condomínios, obras corporativas e infraestrutura urbana.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12	APR Service Power	Exact match	Campinas, BrazilHQ recorded Oct 22, 2026	11-50	6 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 · Oct 22, 2026 · View company records in RevenueBase
13	Asseplam Comércio E Montagens Elétricas	Exact match	Jundiaí, BrazilHQ recorded Oct 22, 2026	11-50	6 contacts →
	Exact match “A ASSEPLAM Comércio e Montagens Elétricas Ltda, desde sua fundação no ano de 1.991, atua no segmento de instalações, painéis e comandos elétricos.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14	BCM Eletricidade E Automação	Exact match	Para De Minas, BrazilHQ recorded Oct 22, 2026	11-50	6 contacts →
	Exact match “BCM Eletricidade e Automação – 23 anos de propósito e evolução.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15	Safegrid	Exact match	Itajubá, BrazilHQ recorded Oct 22, 2026	1-10	5 contacts →
	Exact match “Somos a SafeGrid, especialistas em comissionamento, ensaios e diagnóstico de equipamentos elétricos.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16	M&w Energy	Exact match	Belo Horizonte, BrazilHQ recorded Oct 22, 2026	11-50	5 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 · Oct 22, 2026 · View company records in RevenueBase
17	Thunder Engenharia	Exact match	Fortaleza, BrazilHQ recorded Oct 22, 2026	11-50	5 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 · Oct 22, 2026 · View company records in RevenueBase
18	Zeitounian Tecnologia	Exact match	Itapevi, BrazilHQ recorded Oct 22, 2026	1-10	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19	Letech Energia	Exact match	Rio De Janeiro, BrazilHQ recorded Oct 22, 2026	1-10	3 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 · Oct 22, 2026 · View company records in RevenueBase
20	Cadimo Engenharia	Exact match	Sao Paulo, BrazilHQ recorded Oct 22, 2026	11-50	2 contacts →
	Exact match “Manutenção Elétrica Industrial \| Engenharia Aplicada \| Controle Operacional” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21	Jamas Engenharia E Construcoes	Exact match	Sorocaba, BrazilHQ recorded Oct 22, 2026	11-50	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22	AC Power Engenharia	Exact match	Indaiatuba, BrazilHQ recorded Oct 22, 2026	1-10	2 contacts →
	Exact match “A AC Power Engenharia é uma empresa inovadora que surgiu com a necessidade de atender aos clientes tanto na área industrial como comercial e residencial, oferecendo serviços na…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23	WG Engenharia - Elétrica	Exact match	Limeira, BrazilHQ recorded Oct 22, 2026	1-10	2 contacts →
	Exact match “A WG Engenharia é uma empresa com sólida experiência no setor elétrico industrial, dedicada a oferecer soluções que unem qualidade, eficiência e excelente custo-benefício.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24	Fasitron Tecnologia	Exact match	Maracanaú, BrazilHQ recorded Oct 22, 2026	1-10	1 contacts →
	Exact match “A Fasitron Tecnologia é uma empresa especializada em manutenção de equipamentos eletrônicos industriais e instrumentos de ensaios elétricos, com foco em confiabilidade, desempenho…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25	Engpositivo	Exact match	Belo Horizonte, BrazilHQ recorded Oct 22, 2026	1-10	1 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 · Oct 22, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “panel testing and maintenance contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 422 panel testing and maintenance contractors based in Brazil

See the full list, filter by size, metro and specialty, and access 61 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Panel testing and maintenance contractors based in Brazil at a glance

As of Oct 22, 2026

2.3%Verified-email coverage

6.2Average contacts per company

1-10Median size (employees)

12.1%Largest-city concentration · Sao Paulo

Oct 22, 2026Page data refreshed

Companies by employee count

1-10

239

11-50

146

51-200

201-500

501-1,000

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 422 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 “panel testing and maintenance contractors” 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 61 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 October 22, 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 “panel testing and maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many panel testing and maintenance contractors are there based in Brazil?

RevenueBase identified 422 company matches for panel testing and maintenance contractors associated with Brazil as of October 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?

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

Which city has the most panel testing and maintenance contractors?

Sao Paulo leads with 51 company records, followed by Rio De Janeiro (15) and Curitiba (13).

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 61 professional contacts with verified work emails tracked across these 422 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 October 22, 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.