Company lists · Data refreshed September 2026

Top 23 Commercial generator maintenance companies based in Brazil

Name: Commercial generator maintenance 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 226 companies tracked

RevenueBase identified 226 commercial generator maintenance companies headquartered in Brazil as of September 2026 and tracks 1,408 professional contacts across them, including 122 with verified work emails. Sao Paulo is the largest hub.

This list covers commercial generator maintenance 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

226Companies

1,408Contacts tracked

122Verified emails

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The 23 largest commercial generator maintenance companies based in Brazil

Ranked by team size

Top 23 of 226 commercial generator maintenance 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 commercial generator maintenance 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	Energ Geradores	Indirect evidence	São Bernardo Do Campo, BrazilHQ checked Sep 19, 2026	51-200	183 contacts →
	Indirect evidence “A ENERG Geradores atua desde 2003 oferecendo soluções completas em segurança energética para operações onde falhar não é uma opção.” Source: RevenueBase Database · checked Sep 19, 2026
2	Gera Center	Indirect evidence	Cotia, BrazilHQ checked Sep 19, 2026	51-200	44 contacts →
	Indirect evidence “A Gera Center iniciou suas atividades em agosto de 1991, em São Paulo, atuando no ramo de locação de grupos geradores.” Source: RevenueBase Database · checked Sep 19, 2026
3	Arpex Engenharia	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 19, 2026	11-50	31 contacts →
	Indirect evidence “Empresa de engenharia que atua nas áreas de prestação de serviço, treinamento, manutenção de grupos geradores, manutenção de motores marítimos e industriais, automação e…” Source: RevenueBase Database · checked Sep 19, 2026
4	MS Geradores Ltda	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “A MS Geradores é uma empresa especializada na montagem de Grupos Geradores de Energia à Diesel e na prestação de serviços de manutenção e reforma, que aumentam significativamente…” Source: RevenueBase Database · checked Sep 19, 2026
5	Contec Enrolamento DE Motores Elétricos Ltda	Indirect evidence	Mogi Guaçu, BrazilHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “A Contec Enrolamento de Motores Elétricos LTDA atua na prestação de serviços de manutenção corretiva e preventiva de motores elétricos, bombas hidráulicas, painéis elétricos e…” Source: RevenueBase Database · checked Sep 19, 2026
6	R7 Geradores	Indirect evidence	Vila Velha, BrazilHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “A R7 Geradores é uma empresa,genuinamente capixaba, com sede em Vila Velha,ES.” Source: RevenueBase Database · checked Sep 19, 2026
7	Ricardo Dinelli	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	1-10	18 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
8	ATG Geradores	Indirect evidence	Santo André, BrazilHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “ATG Geradores \|+25 anos de excelência em soluções energéticas Desde a ATG Geradores é referência no mercado de locação e manutenção de geradores, garantindo o fornecimento de…” Source: RevenueBase Database · checked Sep 19, 2026
9	NEW Power Grupos Geradores	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Somos uma prestadora de serviços de manutenção preventiva e corretiva em grupos geradores.” Source: RevenueBase Database · checked Sep 19, 2026
10	Stron Motores Elétricos	Indirect evidence	Americana, BrazilHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “A Stron Motores Elétricos atua hoje no segmento de manutenção industrial, seus diretores possuem experiência técnico/pratica a mais de 23 anos na área.” Source: RevenueBase Database · checked Sep 19, 2026
11	Grupo VIA Energia	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Ao longo dos mais de 15 anos de experiência profissional na área de energia, os idealizadores do Grupo Via Energia perceberam uma carência de empresas que gerenciassem os serviços…” Source: RevenueBase Database · checked Sep 19, 2026
12	Unigera Soluções EM Energia	Indirect evidence	São Caetano Do Sul, BrazilHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “A Unigera empresa fundada em São Caetano do Sul-SP nasce em função da necessidade em oferecer aos clientes bom atendimento e soluções voltadas para vendas de Geradores a Diesel e…” Source: RevenueBase Database · checked Sep 19, 2026
13	Vitormac Grupos Geradores	Indirect evidence	Gravataí, BrazilHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Fundada no ano de 2010, a Vitormac é uma empresa especializada no segmento de geração de energia, oferecendo as mais diversas soluções, tais como: fornecimento de equipamentos…” Source: RevenueBase Database · checked Sep 19, 2026
14	Edda Energia - GTD	Indirect evidence	Jundiaí, BrazilHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Fabricação de Grupo Moto-Geradores - GMG, Manutenção Elétrica Industrial, Sistema Fotovoltaico - venda e manutenção, Soluções para Geração, Transmissão e Distribuição de Energia.” Source: RevenueBase Database · checked Sep 19, 2026
15	Portugal Geradores	Indirect evidence	Feira De Santana, BrazilHQ checked Sep 19, 2026	51-200	6 contacts →
	Indirect evidence “Atendimento 24h:(77) E-mail: bernardo@portugalgeradores.com.br A Portugal Geradores é uma empresa que tem mais de 25 anos levando soluções em geração de energia.” Source: RevenueBase Database · checked Sep 19, 2026
16	Grupo Energe	Indirect evidence	Campo Grande, BrazilHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “O Grupo Energe entrega energia para operações que não podem parar: indústria, agroindústria, mineração, data center, obras de infraestrutura, serviços essenciais e grandes eventos.” Source: RevenueBase Database · checked Sep 19, 2026
17	Provectus Engenharia Elétrica	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “A PROVECTUS ENGENHARIA ELÉTRICA é uma empresa tem como principal objetivo fornecer com qualidade todo o suporte técnico e operacional, necessários para o completo funcionamento…” Source: RevenueBase Database · checked Sep 19, 2026
18	Power System Comercio E Assistencia Tecnica DE Grupos Geradores	Indirect evidence	Sao Bernardo Do Campo, BrazilHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
19	Voltmac Geradores	Indirect evidence	Santo André, BrazilHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “A VoltMac, está instalada na região do ABCD, São Paulo, equipada com os recursos necessários para atendimento imediato dos seus clientes.” Source: RevenueBase Database · checked Sep 19, 2026
20	Gforce Geradores	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “A GForce Geradores, fundada em é uma empresa especializada em manutenção, venda e locação de grupos geradores.” Source: RevenueBase Database · checked Sep 19, 2026
21	Dínamo Comércio	Indirect evidence	Santo André, BrazilHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Desde 1995 com sede sede um Santo André - São paulo,a Eletro Técnica Dinamo trabalha para manter a mais alta qualidade na manutenção de motores e geradores de baixa e média…” Source: RevenueBase Database · checked Sep 19, 2026
22	Gera-Mag	Indirect evidence	Rio De Janeiro Zona Centro, BrazilHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Locação, manutenção de geradores de energia, instalações elétricas prediais e industriais.” Source: RevenueBase Database · checked Sep 19, 2026
23	Stec Geradores	Indirect evidence	Novo Hamburgo, BrazilHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Stec Geradores uma empresa localizada em Novo Hamburgo RS, atua no ramo de geradores de energia em parceria com a MWM geradores.” 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: commercial generator maintenance 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 commercial generator maintenance companies.
Partial evidence: Its own public description names part of commercial generator maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial generator maintenance 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 23 of 226 commercial generator maintenance companies based in Brazil

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Commercial generator maintenance companies based in Brazil at a glance

As of Sep 19, 2026

8.7%Verified-email coverage

6.2Average contacts per company

1-10Median size (employees)

11.9%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

120

11-50

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 226 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 commercial generator maintenance 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 “commercial generator maintenance 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 commercial generator maintenance 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 commercial generator maintenance 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, 122 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.

Commercial generator maintenance companies by metro

Commercial generator maintenance companies in Sao Paulo27

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 commercial generator maintenance 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 commercial generator maintenance companies are there based in Brazil?

RevenueBase identified 226 commercial generator maintenance 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?

Energ Geradores, headquartered in Sao Bernardo Do Campo, tops this list with the largest team on record.

Which city has the most commercial generator maintenance companies?

Sao Paulo leads with 27 headquartered companies, followed by Sao Bernardo Do Campo (13) and Rio De Janeiro (10).

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 122 verified decision-maker contacts tracked across these 226 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.