| # | Company | Employees |
|---|---|---|
| 1 |
Petrobraspetrobras.com.br
The company aims to provide ethical, safe, and competitive energy solutions while focusing on sustainability, environmental responsibility, and employee well-being |
56,267 |
| 2 |
Eletrobraseletrobras.com
Generation, transmission, commercialization, and energy efficiency programs; electric sector leader in Latin America, clean and renewable energy matrix. |
13,000 |
| 3 |
Supergasbras Energia Ltdasupergasbras.com.br
We are a leading distributor of LP Gas in Brazil, providing customized energy solutions to households and businesses, with a focus on quality, safety, and environmental sustainability |
4,857 |
| 4 |
Enevaeneva.com.br
A leading integrated energy operator, involved in exploration, production, and supply of energy solutions Operates gas fields and power generation assets across Brazil |
2,771 |
| 5 |
BR Distribuidoravibraenergia.com.br
Energy distributor undergoing rebranding, active on social media platforms with a focus on oil and gas distribution and related services |
2,641 |
| 6 |
Ocyanocyan-sa.com
Specializing in sustainable solutions for the offshore oil and gas industry, the company focuses on safety, client partnership, and ethical operations with drilling and FPSO services |
2,637 |
| 7 |
Constellation Oil Servicestheconstellation.com
A drilling contractor specializing in deep and ultra-deepwater drilling, with a focus on safety, trust, excellence, and sustainability in operations |
2,357 |
| 8 |
PRIOprio3.com.br
Leading independent oil and gas company in Brazil, focusing on efficient reservoir management and redeveloping mature fields with innovative approaches |
1,843 |
| 9 |
Odebrecht Óleo e Gásodebrechtoilgas.com
Provider of integrated solutions for the upstream oil and gas industry, offering services in offshore drilling, subsea construction, production, logistics, maintenance, and well services |
1,290 |
| 10 |
Origem Energiaorigemenergia.com
Established in 2017, it specializes in energy integration across different sectors and operates across various states, offering a diverse portfolio of energy solutions |
1,090 |
| 11 |
ICONICiconic.com.br
A market-leading company formed from the merger of two lubricant businesses, specializing in development, production, and distribution of a wide range of products |
989 |
| 12 |
Refitrefit.com.br
A Brazilian refinery dedicated to producing Gasolina A, investing in modernization, governance practices, and delivering quality fuel to customers |
936 |
| 13 |
Qualitech IRMqualitechirm.com
A multinational provider of inspection, repair, and maintenance services in the oil, gas, and energy sectors, focusing on efficiency, safety, and sustainability |
657 |
| 14 |
Altera&Ocyanocyan-sa.com
Altera&Ocyan is a sustainable company providing solutions for the offshore upstream oil and gas industry in Brazil and internationally |
597 |
| 15 |
Sapura Navegação Marítima S.A.seagems.com.br
Specializing in subsea services, this Brazilian joint venture operates a fleet of vessels for support, installation, and pipe laying with a global presence in over 20 countries |
587 |
| 16 |
Grupo MPE - Montagens Projetos Especiais S/Agrupompe.com.br
Specializes in providing a wide range of integrated solutions and services tailored to meet the needs of various industries and sectors |
585 |
| 17 |
EBSE Engenharia de Soluçõesebse.com.br
Manufacturer of industrial equipment, pipes, and heavy-duty machinery, specializing in electromechanical assembly, pipe fabrication, modular structures for various industries since 1913 |
564 |
| 18 |
TBG - Transportadora Brasileira Gasoduto Bolívia-Brasil S.A.tbg.com.br
Specializing in natural gas transmission, the organization owns and operates a major pipeline in Brazil, offering services in planning, deploying, operating, and maintaining gas infrastructure |
524 |
| 19 |
Compagnie Maritime Monégasque (CMM)cmmoffshore.com
Leader in sustainable offshore operations in Brazil, focused on integrating green technologies and eco-friendly practices to set new benchmarks for eco-conscious services |
514 |
| 20 |
TAGntag.com.br
Leading gas transportation network in Brazil, spanning over 4,500 km across 10 states, ensuring safe and reliable energy supply for cities and industries nationwide |
411 |
| 21 |
NTS - Nova Transportadora do Sudestentsbrasil.com
NTS provides natural gas transportation in Brazil's industrialized Southeast region with a pipeline network connecting key cities and terminals |
385 |
| 22 |
IBP - Instituto Brasileiro de Petróleo, Gás e Biocombustíveisibp.org.br
A private, non-profit organization founded in 1957, focused on promoting the development of the oil and gas industry towards competitiveness, ethics, and social responsibility |
362 |
| 23 |
GranEnergiagranenergia.com
An integrated offshore energy services company based in Brazil and the Netherlands, offering maritime operations, IMR, construction, supply chain management, and port services |
356 |
| 24 |
IESA Óleo & Gás S/Aiesa.com.br
A Brazilian company specializing in oil & gas projects with extensive experience in engineering, procurement, construction, and project management |
343 |
| 25 |
Sinopec International Petroleum do Brasil Ltda.sinopecbrasil.com.br
A major Chinese energy player with expertise in oil and gas exploration, processing, and distribution, operating in Brazil since 2005 |
340 |
| 26 |
Naturgy Brasilnaturgy.com.br
A multinational leader in gas and electricity, serving over 20 million customers in 20 countries Provides natural gas distribution, energy solutions, and renewable energy |
338 |
| 27 |
Oilequipoilequip.com.br
Specializing in manufacturing, remanufacturing, and adapting oil & gas equipment for surface and subsea well completion, maintenance, and inspection services |
185 |
| 28 |
Desativadalinkedin.com
Provider of integrated logistics and supply chain solutions with a focus on port terminals, towage, shipping agency, offshore, and shipyards in Brazil |
180 |
| 29 |
EDF Norte Fluminenseedfnortefluminense.com.br
Generation of thermal and hydroelectric energy providing power to over four million people with focus on efficiency and environmental preservation. |
173 |
| 30 |
Deep Sea Supplysolstad.com
Offshore supply business owning and operating Anchor Handling Tug Supply vessels and Platform Supply Vessels worldwide, with a focus on short to medium term contracts |
159 |
| 31 |
PPSA (Pré-Sal Petróleo S/A)presalpetroleo.gov.br
Established in 2013, this organization manages production-sharing contracts, oil and gas sales, and represents the government in production agreements within the Pre-Salt region |
146 |
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 10, 2026.
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