Company lists · Data refreshed September 2026

Top 25 Electrical hazard assessment companies based in Brazil

Name: Electrical hazard assessment companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 339 companies tracked

RevenueBase identified 339 electrical hazard assessment companies headquartered in Brazil as of September 2026 and tracks 1,405 professional contacts across them, including 74 with verified work emails. Sao Paulo is the largest hub.

This list covers electrical hazard assessment companies 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

339Companies

1,405Contacts tracked

74Verified emails

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The 25 largest electrical hazard assessment companies based in Brazil

Ranked by team size

Top 25 of 339 electrical hazard assessment companies 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 hazard assessment companies: 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	On7 Engenharia	Indirect evidence	Blumenau, BrazilHQ checked Sep 19, 2026	51-200	45 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
2	Ideal Work Engenharia	Indirect evidence	Jandira, BrazilHQ checked Sep 19, 2026	51-200	35 contacts →
	Indirect evidence “Ideal Work – Consultoria e Projetos de Engenharia.” Source: RevenueBase Database · checked Sep 19, 2026
3	Wbecker Engenharia Elétrica	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
4	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
5	Ulian Engenharia	Indirect evidence	São José Dos Quatro Marcos, BrazilHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
6	Sermatex Grün Equipamentos Elétricos Ltda	Partial evidence	São Paulo, BrazilHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “Sermatex Consultoria e Comércio Ex Ltda.(Electrics Services and Materials for Explosive Atmospheres) was founded in Brazil, 1989 by Paulo Morais.” Source: RevenueBase Database · checked Sep 19, 2026
7	Dpst Desenvolvimento E Planejamento EM Segurança DO Trabalho	Indirect evidence	Agudos, BrazilHQ checked Sep 19, 2026	1-10	12 contacts →
	Indirect evidence “A DPST surgiu em como uma unidade em Agudos-SP, e rapidamente se tornou uma empresa líder no mercado nacional de segurança no trabalho e engenharia.” Source: RevenueBase Database · checked Sep 19, 2026
8	Solugy Engenharia	Indirect evidence	Curvelo, BrazilHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “A Solugy desenvolve soluções elétricas que são pensadas para entregar máxima eficiência e segurança para o seu empreendimento.” Source: RevenueBase Database · checked Sep 19, 2026
9	NSB Engenharia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “Fundada em 1997 com foco em soluções de Engenharia Elétrica para Sistemas industriais, a SMARTTECH ELÉTRICA, agora NSB ENGENHARIA, conta com uma equipe de Engenheiros altamente…” Source: RevenueBase Database · checked Sep 19, 2026
10	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
11	M&w Energy	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
12	Ethica Empresarial Serviços DE Vistoria ME	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Trabalhamos com levantamento criterioso em campo, efetuando análises das instalações físicas, layout, sistemas elétricos, SPDA, sistemas de proteções e meios de combate à…” Source: RevenueBase Database · checked Sep 19, 2026
13	Grupo D.S.F Engenharia	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “D.S.F Engenharia \| Engenharia Elétrica com Excelência, Estratégia e Resultado Fundada em 2013, a D.S.F Engenharia atua no mercado de engenharia elétrica oferecendo consultoria…” Source: RevenueBase Database · checked Sep 19, 2026
14	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
15	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
16	Zeitounian Tecnologia	Indirect evidence	Itapevi, BrazilHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
17	Letech Energia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect 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
18	IAZ Saúde E Segurança DO Trabalho	Indirect evidence	Goiânia, BrazilHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “GRUPO IAZ Engenharia É mais do que uma empresa de assessoria em saúde e segurança do trabalho, somos seu parceiro vitalício comprometido em proteger o seu negócio.” Source: RevenueBase Database · checked Sep 19, 2026
19	Soluind Engenharia	Indirect evidence	Americana, BrazilHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “A Soluind é uma empresa fundada em 2016 que tem por missão levar a solução integrada nas áreas de Engenharia Elétrica, Mecânica e Segurança de Trabalho, para indústrias e…” Source: RevenueBase Database · checked Sep 19, 2026
20	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
21	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
22	RD Engenharia Elétrica Ltda	Indirect evidence	Caxias Do Sul, BrazilHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
23	Monitore Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “A Monitore Engenharia oferece soluções diferenciadas e integradas para as atividades em Atmosfera Explosiva como Estudos de Classificação de Área, Inspeções e Adequações em Áreas…” Source: RevenueBase Database · checked Sep 19, 2026
24	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
25	WSI Consultoria EM Engenharia Elétrica	Indirect evidence	Rio Verde - Go, BrazilHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “A WSI Consultoria em Engenharia é uma empresa com atuação em Engenharia elétrica e Engenharia de Segurança do Trabalho, com sede na cidade de Rio Verde - Go.” 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 hazard assessment companies. 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 hazard assessment companies.
Partial evidence: Its own public description names part of electrical hazard assessment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical hazard assessment companies. 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 25 of 339 electrical hazard assessment companies based in Brazil

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Electrical hazard assessment companies based in Brazil at a glance

As of Sep 19, 2026

5.3%Verified-email coverage

4.1Average 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

230

11-50

51-200

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 339 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 hazard assessment companies, 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 hazard assessment companies”. 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 hazard assessment companies), 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 hazard assessment companies, 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, 74 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 hazard assessment companies by metro

Electrical hazard assessment companies in Sao Paulo37

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 hazard assessment companies, 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 hazard assessment companies are there based in Brazil?

RevenueBase identified 339 electrical hazard assessment companies 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?

On7 Engenharia, headquartered in Blumenau, tops this list with the largest team on record.

Which city has the most electrical hazard assessment companies?

Sao Paulo leads with 37 headquartered companies, followed by Rio De Janeiro (15) and Curitiba (12).

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 74 verified decision-maker contacts tracked across these 339 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.

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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 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.