Company lists · Data refreshed November 2026

Top 25 Generator maintenance contractors based in Brazil

RevenueBase identified 345 company matches for generator maintenance contractors associated with Brazil as of November 2026 and tracks 4,716 professional contacts across them, including 680 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for generator 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 November 6, 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 Nov 6, 2026 How this list was built
345Companies
4,716Contacts tracked
680Verified emails
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The 25 largest generator maintenance contractors based in Brazil

Ranked by team size
Top 25 of 345 company matches for generator maintenance contractors based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchPorto Alegre, BrazilHQ recorded Nov 6, 20261,001-5,000996 contacts →

Exact match

“Líder nacional na fabricação e comercialização de grupos geradores, a STEMAC projeta e executa soluções em energia através da maior estrutura de atendimento, com 38 filiais…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSarzedo, BrazilHQ recorded Nov 6, 2026501-1,000718 contacts →

Exact match

“The DATA Engenharia is installed in a green area of m2, with m2 of constructed area, in the municipality of Sarzedo (industrial region in the vicinity of Belo Horizonte / MG).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSão Bernardo Do Campo, BrazilHQ recorded Nov 6, 202651-200210 contacts →

Exact match

“A ENERG Geradores atua desde 2003 oferecendo soluções completas em segurança energética para operações onde falhar não é uma opção.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 202651-200136 contacts →

Exact match

“A SBLOK fornece soluções temporárias de geração de energia com a rapidez que o seu negócio precisa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPorto Alegre, BrazilHQ recorded Nov 6, 20261,001-5,000113 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchVolta Redonda, BrazilHQ recorded Nov 6, 20261,001-5,000107 contacts →

Exact match

“A MP Trafos Engenharia nasceu em 1993, na cidade de Pindamonhangaba, para atender a crescente demanda por manutenção industrial especializada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“Com expertise mais de 30 anos de mercado, um de seus principais diferenciais é a agilidade em atender as demandas dos clientes de forma simples e sem burocracia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCampinas, BrazilHQ recorded Nov 6, 202611-5057 contacts →

Exact match

“TME ENGENHARIA e MANUTENÇÃO is a services company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCotia, BrazilHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“A Gera Center iniciou suas atividades em agosto de 1991, em São Paulo, atuando no ramo de locação de grupos geradores.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMonte Mor, BrazilHQ recorded Nov 6, 202651-20043 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSao Paulo, BrazilHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“O GRUPO GERA ENERGIA foi fundado por profissionais experientes com mais de 30 anos no mercado na área de geração e distribuição de energia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 2026201-50035 contacts →

Exact match

“A Sprint Rental é uma empresa de soluções de geração de energia, climatização temporária, manutenção de geradores e representação de venda de filtros para motores diesel.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPorto Alegre, BrazilHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Empresa de engenharia que atua nas áreas de prestação de serviço, treinamento, manutenção de grupos geradores, manutenção de motores marítimos e industriais, automação e…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMogi Guaçu, BrazilHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchVila Velha, BrazilHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“A R7 Geradores é uma empresa,genuinamente capixaba, com sede em Vila Velha,ES.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSanta Bárbara D'oeste, BrazilHQ recorded Nov 6, 20261-1018 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBelo Horizonte, BrazilHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Especialista em geração e manutenção de energia elétrica, a Sotec vende e realiza a manutenção multimarcas de no-breaks, geradores, baterias e infraestrutura.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSanto André, BrazilHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Manutenção de Geradores”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSertãozinho, BrazilHQ recorded Nov 6, 202651-20013 contacts →

Exact match

“A GMTEC SOLUÇÕES, está localizada em Sertãozinho/SP, Lençois Paulista/SP e contamos com representante em Mumbai/India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSão Bernardo Do Campo, BrazilHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Graças ao nosso Departamento de Engenharia e contando com larga experiência de seus diretores e colaboradores ao longo destes anos, a MEGAWATT vem crescendo no mercado e…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondrina, BrazilHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“A Ottoset Serviços é especializada em manutenção predial e de grupos geradores, atendendo empresas como Prosegur, Segurpro, Coopavel, Agro Alfa, NotreDame Intermédica, Hospital…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Somos uma prestadora de serviços de manutenção preventiva e corretiva em grupos geradores.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchFeira De Santana, BrazilHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGravataí, BrazilHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 345 generator maintenance contractors based in Brazil

See the full list, filter by size, metro and specialty, and access 680 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Generator maintenance contractors based in Brazil at a glance

As of Nov 6, 2026
14.4%Verified-email coverage
13.7Average contacts per company
11-50Median size (employees)
10.4%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
169
11-50
138
51-200
27
201-500
2
501-1,000
3
1,001-5,000
3

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 345 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 “generator 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 680 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 November 6, 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 “generator maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many generator maintenance contractors are there based in Brazil?

RevenueBase identified 345 company matches for generator maintenance contractors associated with Brazil as of November 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?

Stemac tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most generator maintenance contractors?

Sao Paulo leads with 36 company records, followed by Rio De Janeiro (19) and Sao Bernardo Do Campo (14).

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 680 professional contacts with verified work emails tracked across these 345 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 November 6, 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.