Company lists · Data refreshed September 2026

Top 25 Power systems engineering companies based in Rio De Janeiro, Brazil

Name: Power systems engineering companies based in Rio De Janeiro, Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 139 companies tracked

RevenueBase identified 139 power systems engineering companies headquartered in Rio De Janeiro, Brazil as of September 2026 and tracks 1,842 professional contacts across them, including 253 with verified work emails. Sao Paulo is the largest hub.

This list covers power systems engineering companies headquartered in Rio De Janeiro, 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 17, 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 17, 2026 86% judged on-target in blind review

139Companies

1,842Contacts tracked

253Verified emails

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The 25 largest power systems engineering companies based in Rio De Janeiro, Brazil

Ranked by team size

Top 25 of 139 power systems engineering companies based in Rio De Janeiro, Brazil, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to power systems engineering 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	CET Brazil Equipamentos DE Energia Eletrica E Tecnologia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1,001-5,000	335 contacts →
	Indirect evidence “A CET BRAZIL EQUIPAMENTOS DE ENERGIA ELETRICA E TECNOLOGIA LTDA.” Source: RevenueBase Database · checked Sep 17, 2026
2	Marte Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1,001-5,000	153 contacts →
	Indirect evidence “A Marte Engenharia Ltda é uma empresa de engenharia que oferece serviços de consultoria e projetos de engenharia nas áreas de geração, transmissão e distribuição de energia…” Source: RevenueBase Database · checked Sep 17, 2026
3	Indica Serviços Oficial	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1,001-5,000	104 contacts →
	Indirect evidence “Missão: Atender os nossos clientes com tecnologia, flexibilidade, lealdade e eficiência no desenvolvimento dos serviços de engenharia elétrica Visão: Ser uma empresa reconhecida…” Source: RevenueBase Database · checked Sep 17, 2026
4	Prática Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	93 contacts →
	Indirect evidence “Fundada em a Prática Engenharia conquistou espaço e tornou-se uma empresa respeitada na solução e engenharia de obras civis, hidráulicas e elétricas, na consecução de projetos…” Source: RevenueBase Database · checked Sep 17, 2026
5	LMENG	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	92 contacts →
	Indirect evidence “Somos um escritório de consultoria técnica, constituído há mais de vinte anos, especializado na área de engenharia, com foco em energia elétrica, atuando nos segmentos de…” Source: RevenueBase Database · checked Sep 17, 2026
6	Adkl Zeller	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	80 contacts →
	Indirect evidence “Fundada em 1996, no Rio de Janeiro, a ADKL Zeller é referência em engenharia elétrica e automação, oferecendo soluções completas para projetos de missão crítica e de alta…” Source: RevenueBase Database · checked Sep 17, 2026
7	Jordão Energia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	47 contacts →
	Indirect evidence “A Jordão Energia foi formada em 1998, inicialmente prestando serviços de consultoria para o Cepel (Centro de Pesquisas de Energia Elétrica da Eletrobras), atuando diretamente em…” Source: RevenueBase Database · checked Sep 17, 2026
8	Torres Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	31 contacts →
	Indirect evidence “Torres Engenharia é referência no mercado de Engenharia Elétrica, com mais de 25 anos de experiência em projetos de alta demanda energética.” Source: RevenueBase Database · checked Sep 17, 2026
9	Fluxo Engenharia Ltda	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	30 contacts →
	Partial evidence “FLUXO ENGENHARIA is an engineering consultancy company founded in 1982, located in the downtown of Rio de Janeiro, Brazil.” Source: RevenueBase Database · checked Sep 17, 2026
10	Engepro Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “Linhas de Transmissão e Subestações- Projetamos para as necessidades específicas de nossos clientes - cada solução é única e eficaz, garantindo desempenho e confiabilidade -…” Source: RevenueBase Database · checked Sep 17, 2026
11	3a Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	26 contacts →
	Indirect evidence “Com mais de 10 anos de experiência em instalações elétricas de baixa e média tensão, seus sócios, engenheiros eletricistas que já trabalharam, no Norte, Sul e Sudeste do Brasil…” Source: RevenueBase Database · checked Sep 17, 2026
12	Sunfor Energia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	19 contacts →
	Indirect evidence “Somos uma empresa de engenharia especializada em energia, com mais de seis anos de experiência no mercado de geração e no desenvolvimento de projetos para o mercado B2B.” Source: RevenueBase Database · checked Sep 17, 2026
13	Ricardo Dinelli	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1-10	18 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	Exbio Energia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	11 contacts →
	Indirect evidence “Somos uma empresa de engenharia elétrica, eletromecânica e soluções em biogás altamente capacitada, comprometida em fornecer soluções inovadoras e sustentáveis para nossos…” Source: RevenueBase Database · checked Sep 17, 2026
15	Barbo Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “A Barbo Engenharia é uma empresa que foi fundada em 1981, a BARBO vem desenvolvendo há mais de 30 anos soluções de engenharia de alto valor agregado para empreendimentos…” Source: RevenueBase Database · checked Sep 17, 2026
16	TAS Energia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Na TAS Energia, oferecemos soluções completas em engenharia para o setor de energia elétrica, com foco em excelência técnica, agilidade no atendimento e eficiência na execução.” Source: RevenueBase Database · checked Sep 17, 2026
17	Allteck Sistemas DE Energia E Infraestrutura	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1-10	9 contacts →
	Indirect evidence “A Allteck Sistemas de Energia e Infraestrutura é uma empresa altamente qualificada e especializada no segmento de energia e infraestrutura para telecomunicações, bem como em…” Source: RevenueBase Database · checked Sep 17, 2026
18	FOX Prime Energia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “A Fox Prime Energia é uma empresa especializada nos setores de energia e engenharia, oferecendo soluções completas em projetos elétricos e civis, estudos elétricos, consultoria…” Source: RevenueBase Database · checked Sep 17, 2026
19	MTX 26 Soluções	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “Focados na construção de um ecossistema de parcerias para entregar projetos de energia renovável de alta qualidade e performance, conectamos nossos clientes com as melhores…” Source: RevenueBase Database · checked Sep 17, 2026
20	Hexatech Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “A Hexatech iniciou suas atividades em 2007, atuando na prestação de serviços em Engenharia Elétrica, nos segmentos: Energia e Automação Industrial/Predial, e também na área de…” Source: RevenueBase Database · checked Sep 17, 2026
21	Zivolt Energia Solar	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Somos um time de engenheiros, eletricistas e programadores apaixonados por energia, tecnologia e sustentabilidade.” Source: RevenueBase Database · checked Sep 17, 2026
22	Letech Energia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 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 17, 2026
23	Luclan	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	3 contacts →
	Indirect evidence “A Luclan é uma empresa que atua há mais de 20 anos no segmento de engenharia fazendo desde o projeto até a execução de serviços como redes elétricas de baixa e média tensão…” Source: RevenueBase Database · checked Sep 17, 2026
24	Interface Automação	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Empresa especializada em criação e renovação de projetos elétricos e automação.” Source: RevenueBase Database · checked Sep 17, 2026
25	Sigo Instalações Elétricas E Tecnológicas Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	2 contacts →
	Indirect evidence “Somos a Sigo Instalações elétricas e tecnológicas Ltda, uma empresa nacional com foco nos sistemas elétricos e eletrônicos prediais, como automação, geração de energia…” Source: RevenueBase Database · checked Sep 17, 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: power systems engineering 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 power systems engineering companies.
Partial evidence: Its own public description names part of power systems engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name power systems engineering 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 139 power systems engineering companies based in Rio De Janeiro, Brazil

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Power systems engineering companies based in Rio De Janeiro, Brazil at a glance

As of Sep 17, 2026

13.7%Verified-email coverage

13.3Average contacts per company

11-50Median size (employees)

235.3%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole Brazil list rather than for Rio De Janeiro, so it is reported there. Company counts and contact totals on this page are exact for Rio De Janeiro, over 139 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 power systems engineering 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 Rio De Janeiro, Brazil whose own description of what they do matches “power systems engineering 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 power systems engineering 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 power systems engineering companies, and records with no verified work email. Companies headquartered outside Rio De Janeiro 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, 253 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 17, 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.

Power systems engineering companies by metro in Brazil

Power systems engineering companies in Sao Paulo327
Power systems engineering companies in Belo Horizonte141
Power systems engineering companies in Rio De Janeiro139
Power systems engineering companies in Curitiba103
Power systems engineering companies in Goiania78
Power systems engineering companies in Porto Alegre64
Power systems engineering companies in Fortaleza56
Power systems engineering companies in Campinas46
Power systems engineering companies in Guarulhos45
Power systems engineering companies in Salvador44
Power systems engineering companies in Recife42
Power systems engineering companies in Sorocaba40
Power systems engineering companies in Sao Jose Dos Campos35
Power systems engineering companies in Londrina33
Power systems engineering companies in Jundiai32
Power systems engineering companies in Contagem31
Power systems engineering companies in Manaus31
Power systems engineering companies in Ribeirao Preto30
Power systems engineering companies in Brasilia28
Power systems engineering companies in Blumenau27
Power systems engineering companies in Uberlandia27

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 power systems engineering 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 power systems engineering companies are there based in Rio De Janeiro, Brazil?

RevenueBase identified 139 power systems engineering companies headquartered in Rio De Janeiro, 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?

CET Brazil Equipamentos DE Energia Eletrica E Tecnologia Ltda, headquartered in Rio De Janeiro, tops this list with the largest team on record.

Which city has the most power systems engineering companies?

Sao Paulo leads with 327 headquartered companies, followed by Belo Horizonte (141) and Rio De Janeiro (139).

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 253 verified decision-maker contacts tracked across these 139 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 17, 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.