Company lists · Data refreshed September 2026

Top 24 Electrical testing and diagnostics based in Brazil

Name: Electrical testing and diagnostics based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 275 companies tracked

RevenueBase identified 275 electrical testing and diagnostics headquartered in Brazil as of September 2026 and tracks 1,211 professional contacts across them, including 49 with verified work emails. Sao Paulo is the largest hub.

This list covers electrical testing and diagnostics headquartered in Brazil, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

275Companies

1,211Contacts tracked

49Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 24 largest electrical testing and diagnostics based in Brazil

Ranked by team size

Top 24 of 275 electrical testing and diagnostics based in Brazil, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical testing and diagnostics: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	MP Engenharia Elétrica	Indirect evidence	Piracicaba, BrazilHQ checked Sep 19, 2026	51-200	53 contacts →
	Indirect evidence “Instalações elétricas / Manutenção elétrica / Projetos elétricos / Análises e Ensaios / SPDA / Termografia / Retrofit / Montagens industriais / Automação / Treinamentos” Source: RevenueBase Database · checked Sep 19, 2026
2	ESP Engenharia & Manutenção	Indirect evidence	Serra, BrazilHQ checked Sep 19, 2026	11-50	24 contacts →
	Indirect evidence “Navegue em nosso site e saiba mais sobre a empresa.” Source: RevenueBase Database · checked Sep 19, 2026
3	Eletrofase	Indirect evidence	Ribeirão Preto, BrazilHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
4	ILM Engenharia Elétrica	Indirect evidence	Goiânia, BrazilHQ checked Sep 19, 2026	1-10	16 contacts →
	Indirect evidence “A ILM Engenharia Elétrica é uma empresa de prestação de serviços especializados atuante nas seguintes áreas: Estudos Elétricos- Curto-Circuito - Fluxo de Potência - Transitórios…” Source: RevenueBase Database · checked Sep 19, 2026
5	Lorencini Brasil	Indirect evidence	São Bernardo Do Campo, BrazilHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
6	IPT Engenharia	Partial evidence	Brasilia, BrazilHQ checked Sep 19, 2026	11-50	12 contacts →
	Partial evidence “We are an Electrical Engineering company located in Brasilia.” Source: RevenueBase Database · checked Sep 19, 2026
7	Safegrid	Indirect evidence	Itajubá, BrazilHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Somos a SafeGrid, especialistas em comissionamento, ensaios e diagnóstico de equipamentos elétricos.” Source: RevenueBase Database · checked Sep 19, 2026
8	APR Service Power	Indirect evidence	Campinas, BrazilHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
9	Eleva Electric	Partial evidence	Balneário Camboriú, BrazilHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial evidence “A Eleva Electric destaca-se atuando no segmento de ensaios elétricos em equipamentos de pátio em subestações de alta tensão.” Source: RevenueBase Database · checked Sep 19, 2026
10	Thunder Engenharia	Indirect evidence	Fortaleza, BrazilHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
11	DE Lucca Engenharia	Indirect evidence	Londrina, BrazilHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Somos um empresa especializada consultoria e auditoria em engenharia elétrica, no qual trabalha de forma integrada com nosso clientes fazendo parte da equipe visando resultado.” Source: RevenueBase Database · checked Sep 19, 2026
12	Zeitounian Tecnologia	Indirect evidence	Itapevi, BrazilHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
13	Letech Energia	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “Atuamos desde 2010 no setor de engenharia elétrica com soluções em diagnostico, projetos, inspeções, laudos e consultoria, com inovação, qualidade e eficiência.” Source: RevenueBase Database · checked Sep 19, 2026
14	Anzo Engenharia Elétrica	Indirect evidence	Itupeva, BrazilHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Formada por engenheiros eletricistas com grande experiência em gerencimento de energia, análise de rede, laudos elétricos e projetos de instalações elétricas, a ANZO oferece uma…” Source: RevenueBase Database · checked Sep 19, 2026
15	Cardus Engenharia E Auditoria	Indirect evidence	Florianopolis, BrazilHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Serviços em engenharia elétrica - NR10 Levantamento de Areas Classificadas Laudo de Inspeção das Instalações Elétricas Laudo de Inspeção SPDA Elaboração de procedimentos…” Source: RevenueBase Database · checked Sep 19, 2026
16	Akissikis Power	Indirect evidence	Curitiba, BrazilHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “A Akissikis é uma empresa de engenharia elétrica especializada em estudos elétricos, EMS (Energy Management Systems), análise de ocorrências e engenharia do proprietário.” Source: RevenueBase Database · checked Sep 19, 2026
17	AC Power Engenharia	Indirect evidence	Indaiatuba, BrazilHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
18	LPENG	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	51-200	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
19	Jamas Engenharia E Construcoes	Indirect evidence	Sorocaba, BrazilHQ checked Sep 19, 2026	11-50	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
20	Fasitron Tecnologia	Indirect evidence	Maracanaú, BrazilHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “A Fasitron Tecnologia é uma empresa especializada em manutenção de equipamentos eletrônicos industriais e instrumentos de ensaios elétricos, com foco em confiabilidade, desempenho…” Source: RevenueBase Database · checked Sep 19, 2026
21	Engpositivo	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “A EngPositivo fornece aos clientes serviço especializado de engenharia na área se ensaios elétricos avançados para máquinas elétricas, cabos isolados, sistemas de aterramento e…” Source: RevenueBase Database · checked Sep 19, 2026
22	Ecaje Engenharia	Indirect evidence	Campinas, BrazilHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Excelência em análise, diagnóstico e soluções para instalações elétricas.” Source: RevenueBase Database · checked Sep 19, 2026
23	BTT Serviços DE Engenharia	Indirect evidence	Rio Das Ostras, BrazilHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
24	CND Engenharia Elétrica	Indirect evidence	Suzano, BrazilHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “A CND (Companhia Nacional de Diagnósticos) é uma empresa especialista em diagnóstico de cabos isolados e em localização de falhas.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: electrical testing and diagnostics. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names electrical testing and diagnostics.
Partial evidence: Its own public description names part of electrical testing and diagnostics, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical testing and diagnostics. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 275 electrical testing and diagnostics based in Brazil

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 49 reachable decision-makers.

Free signup · no credit card

View the full list →

Electrical testing and diagnostics based in Brazil at a glance

As of Sep 19, 2026

4.0%Verified-email coverage

4.4Average contacts per company

1-10Median size (employees)

10.9%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

184

11-50

51-200

201-500

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 275 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among electrical testing and diagnostics, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Brazil whose own description of what they do matches “electrical testing and diagnostics”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names electrical testing and diagnostics), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among electrical testing and diagnostics, and records with no verified work email. Companies headquartered outside Brazil are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 49 across the full list. 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 September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Electrical testing and diagnostics by metro

Electrical testing and diagnostics in Sao Paulo30

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names electrical testing and diagnostics, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many electrical testing and diagnostics are there based in Brazil?

RevenueBase identified 275 electrical testing and diagnostics headquartered in Brazil as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

MP Engenharia Elétrica, headquartered in Piracicaba, tops this list with the largest team on record.

Which city has the most electrical testing and diagnostics?

Sao Paulo leads with 30 headquartered companies, followed by Curitiba (10) and Belo Horizonte (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 49 verified decision-maker contacts tracked across these 275 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 275 electrical testing and diagnostics based in Brazil. Start with a free account, no credit card.

Download this list →

Related lists

Electrical testing and diagnostics by geography

Browse the directory

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 Smart Search, 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.