Company lists · Data refreshed September 2026

Top 25 Mechanical contractors for energy based in Brazil

Name: Mechanical contractors for energy based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 760 companies tracked

RevenueBase identified 760 mechanical contractors for energy headquartered in Brazil as of September 2026 and tracks 12,416 professional contacts across them, including 911 with verified work emails. Sao Paulo is the largest hub.

This list covers mechanical contractors for energy 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 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

760Companies

12,416Contacts tracked

911Verified emails

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The 25 largest mechanical contractors for energy based in Brazil

Ranked by team size

Top 25 of 760 mechanical contractors for energy based in Brazil, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to mechanical contractors for energy: 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	Irmãos Passaúra S A	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	1,001-5,000	1,075 contacts →
	Indirect evidence “Empresa de Montagem e Manutenção Industrial” Source: RevenueBase Database · checked Sep 17, 2026
2	MKS Soluções Integradas S.A	Indirect evidence	Camaçari, BrazilHQ checked Sep 17, 2026	501-1,000	1,012 contacts →
	Indirect evidence “No mercado desde 1994, somos uma empresa que oferece soluções integradas de engenharia nas áreas de manutenção, construção e montagem eletromecânica e serviços especializados de…” Source: RevenueBase Database · checked Sep 17, 2026
3	Heating Cooling	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	501-1,000	436 contacts →
	Indirect evidence “Desde 1974, a Heating & Cooling atua no segmento de engenharia de instalação de Sistemas de Ar-Condicionado, Ventilação e Exaustão Mecânica, com mais de 2.500 projetos executados.” Source: RevenueBase Database · checked Sep 17, 2026
4	Grupo Masstin	Indirect evidence	Barueri, BrazilHQ checked Sep 17, 2026	501-1,000	282 contacts →
	Indirect evidence “Fundada em setembro de 1978 com uma proposta de trabalho direcionada à qualidade e voltada ao planejamento, gerenciamento e execução dos planos de instalação e manutenção, sua…” Source: RevenueBase Database · checked Sep 17, 2026
5	Arclima Engenharia	Partial evidence	Cabo De Santo Agostinho, BrazilHQ checked Sep 17, 2026	201-500	265 contacts →
	Partial evidence “A Arclima Engenharia é uma empresa brasileira especializada em Climatização, Refrigeração e Eficiência Energética (HVAC), com atuação em todo o território nacional.” Source: RevenueBase Database · checked Sep 17, 2026
6	CEL Engenharia Celenergia	Indirect evidence	Goiânia, BrazilHQ checked Sep 17, 2026	1,001-5,000	263 contacts →
	Indirect evidence “Fundada em 1992, a CEL ENGENHARIA é regida pelos princípios da ética, responsabilidade e profissionalismo; oferece serviços implementados com rigor técnico e operacional aliados…” Source: RevenueBase Database · checked Sep 17, 2026
7	Star Center	Indirect evidence	Diadema, BrazilHQ checked Sep 17, 2026	501-1,000	261 contacts →
	Indirect evidence “Excelência Em Obras de Engenharia em Climatização.” Source: RevenueBase Database · checked Sep 17, 2026
8	Qualieng Engenharia	Indirect evidence	Diadema, BrazilHQ checked Sep 17, 2026	501-1,000	258 contacts →
	Indirect evidence “Com atuação consolidada na engenharia de montagem, a Qualieng Engenharia executa obras de instalações elétricas, hidráulicas, HVAC, sistemas de combate a incêndio e sistemas…” Source: RevenueBase Database · checked Sep 17, 2026
9	Planem Engenharia	Indirect evidence	São Paulo, BrazilHQ checked Sep 17, 2026	501-1,000	204 contacts →
	Indirect evidence “Fundada em 1974, a Planem Engenharia especializou-se na execução de instalações e manutenção em sistemas elétricos, hidráulicos e mecânicos, nos seguintes segmentos- MISSÃO…” Source: RevenueBase Database · checked Sep 17, 2026
10	Flex Montagem Eletromecânica E Manutenção Industrial Ltda	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	51-200	195 contacts →
	Indirect evidence “Empresa Nacional fundada em 2009, a Flex Montagem Eletromecânica e Manutenção Industrial LTDA, iniciou as atividades em um pequeno galpão de 500 m² através da iniciativa…” Source: RevenueBase Database · checked Sep 17, 2026
11	LV Castro Engenharia E Inspecao Industrial	Indirect evidence	Lauro De Freitas, BrazilHQ checked Sep 17, 2026	n/a	137 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
12	Ambient AIR AR Condicionado	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	124 contacts →
	Indirect evidence “Fundada em 1975, no Rio de Janeiro, a Ambient Air iniciou suas operações com a instalação de sistemas Split da marca Philco, tornando-se pioneira nesse segmento no Brasil.” Source: RevenueBase Database · checked Sep 17, 2026
13	Valtec Instalação	Indirect evidence	Mauá, BrazilHQ checked Sep 17, 2026	501-1,000	118 contacts →
	Indirect evidence “Desenvolvemos e implementamos soluções de engenharia inovadoras e personalizadas, assegurando excelência, segurança, eficiência e sustentabilidade em cada projeto.” Source: RevenueBase Database · checked Sep 17, 2026
14	Maneng Refrigeração	Indirect evidence	Santo André, BrazilHQ checked Sep 17, 2026	51-200	117 contacts →
	Indirect evidence “A Maneng é uma empresa especializada em manutenção, operação e projetos de sistemas de ar-condicionado e climatização (HVAC), atuando no mercado corporativo há mais de 20 anos…” Source: RevenueBase Database · checked Sep 17, 2026
15	MCQ Eletro Service	Partial evidence	Curitiba, BrazilHQ checked Sep 17, 2026	51-200	111 contacts →
	Partial evidence “Fundada em por engenheiros com vasta experiência no setor energético e oriundos da COPEL (Companhia Paranaense de Energia), a MCQ ELETRO SERVICE LTDA tem o objetivo de oferecer ao…” Source: RevenueBase Database · checked Sep 17, 2026
16	AJS Indústria E Serviços	Indirect evidence	Sapucaia Do Sul, BrazilHQ checked Sep 17, 2026	51-200	106 contacts →
	Indirect evidence “A AJS INDÚSTRIA E SERVIÇOS é uma empresa especializada em fabricação, montagem e manuteção indústrial, com sede em Sapucaia do Sul, região metropolitana de Porto Alegre.” Source: RevenueBase Database · checked Sep 17, 2026
17	Connect Infraestrutura	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	51-200	103 contacts →
	Indirect evidence “A Connect Infraestrutura é uma empresa especializada em serviços de manutenção predial e sistemas HVAC, com atuação em todo o território nacional por meio de equipes residentes e…” Source: RevenueBase Database · checked Sep 17, 2026
18	MP Trafos Engenharia	Indirect evidence	Volta Redonda, BrazilHQ checked Sep 17, 2026	1,001-5,000	103 contacts →
	Indirect evidence “A MP Trafos Engenharia nasceu em 1993, na cidade de Pindamonhangaba, para atender a crescente demanda por manutenção industrial especializada.” Source: RevenueBase Database · checked Sep 17, 2026
19	Ergo Engenharia	Indirect evidence	São Paulo, BrazilHQ checked Sep 17, 2026	51-200	93 contacts →
	Indirect evidence “A ERGO Engenharia possui a mais completa equipe de profissionais, com comprovada experiência, para fornecer e instalar sistemas de HVAC.” Source: RevenueBase Database · checked Sep 17, 2026
20	Arcon Engenharia DE Climatização Ltda	Indirect evidence	Ipatinga, BrazilHQ checked Sep 17, 2026	51-200	90 contacts →
	Indirect evidence “A ARCON Engenharia de Climatização atua desde a década de 80 em sistemas de HVAC (climatização, ventilação e exaustão), apresentando diversos tipos de soluções aos mais variados…” Source: RevenueBase Database · checked Sep 17, 2026
21	Ocle Engenharia Ltda	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	51-200	87 contacts →
	Indirect evidence “A Ocle é um escritório de engenharia de soluções customizadas para diversos segmentos de negócios.” Source: RevenueBase Database · checked Sep 17, 2026
22	Grupo Fontebras	Indirect evidence	Pecém, BrazilHQ checked Sep 17, 2026	51-200	87 contacts →
	Indirect evidence “O Grupo Empresarial Fontebras é especializado em execução, ampliação e manutenção de obras de construção civil, instalação eletromecânica, fabricação e montagem de estruturas…” Source: RevenueBase Database · checked Sep 17, 2026
23	Engebran Montagem Eletromecânica	Indirect evidence	Mairinque, BrazilHQ checked Sep 17, 2026	51-200	86 contacts →
	Indirect evidence “A ENGEBRAN sempre preocupada com o meio ambiente, procura minimizar os impactos ambientais causados por nossas atividades, como geração de resíduos, emissões e consumo de recursos…” Source: RevenueBase Database · checked Sep 17, 2026
24	Ação Engenharia E Instalações Ltda	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	11-50	73 contacts →
	Indirect evidence “We provide differentiated engineering solutions and services in facilities infrastructure, adding technology, innovation, reliability, competent human resources with compatible…” Source: RevenueBase Database · checked Sep 17, 2026
25	Pontual Energy Electric System Ltda	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	51-200	72 contacts →
	Indirect evidence “Construction solutions, preventive and corrective maintenance, electrical and electromechanical assemblies, O&M, Commissioning of equipment, panels and SPCS.” 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: mechanical contractors for energy. 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 mechanical contractors for energy.
Partial evidence: Its own public description names part of mechanical contractors for energy, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mechanical contractors for energy. 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 760 mechanical contractors for energy based in Brazil

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Mechanical contractors for energy based in Brazil at a glance

As of Sep 17, 2026

7.3%Verified-email coverage

16.3Average contacts per company

11-50Median size (employees)

18.3%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

286

11-50

288

51-200

139

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 760 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 mechanical contractors for energy, 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 “mechanical contractors for energy”. 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 mechanical contractors for energy), 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 mechanical contractors for energy, 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, 911 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.

Mechanical contractors for energy by metro

Mechanical contractors for energy in Sao Paulo139
Mechanical contractors for energy in Rio De Janeiro38
Mechanical contractors for energy in Curitiba30

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 mechanical contractors for energy, 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 mechanical contractors for energy are there based in Brazil?

RevenueBase identified 760 mechanical contractors for energy 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?

Irmãos Passaúra S A, headquartered in Brazil, tops this list with the largest team on record.

Which city has the most mechanical contractors for energy?

Sao Paulo leads with 139 headquartered companies, followed by Rio De Janeiro (38) and Curitiba (30).

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 911 verified decision-maker contacts tracked across these 760 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.