# 50 leading energy companies in Portugal

Tamtam tracks 52 energy companies headquartered in Portugal. This list ranks the 50 largest by number of employees on LinkedIn, led by EDP, Mota-Engil and Galp. Their median headcount is 323. Half of them were founded in 1995 or later. The most common headquarters are Lisbon (14), Porto (5) and Matosinhos (3).

This selection of large Portuguese companies in the energy sector includes EDP, a global energy company focusing on renewable sources, and Galp, which provides integrated energy and mobility solutions. Other notable firms are Efacec, an innovative solutions provider for energy, mobility, and the environment, and The Navigator Company, an integrated producer of forest, pulp, paper, tissue, and energy. Mota-Engil, a multinational group, specializes in construction, energy, and mining.

A significant portion of these companies, such as EDP, Galp, REN, E-REDES, and Bosch Portugal, are headquartered in Lisbon. The companies listed primarily operate within the utilities, oil and gas, and construction sectors, with a strong emphasis on energy generation, distribution, and related infrastructure.

🇵🇹 Portugal · 50 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [EDP](https://www.tamtam.ai/c/edp) (edp.com)<br>A global energy company focusing on renewable sources, aiming for 100% green energy by 2030 and promoting sustainability worldwide | Utilities | 🇵🇹 Lisbon | 13,952 |  |
| 2 | [Mota-Engil](https://www.tamtam.ai/c/mota-engil) (mota-engil.com)<br>Multinational group specializing in engineering, construction, environment, transport concessions, energy, and mining across Europe, Africa, and Latin America. | Construction | 🇵🇹 Porto | 9,395 | 1946 |
| 3 | [Galp](https://www.tamtam.ai/c/galp) (galp.com)<br>Provides efficient, integrated energy and mobility solutions for industries, companies, and consumers. Extracts oil, natural gas, and produces solar energy. | Oil and Gas | 🇵🇹 Alcântara | 6,400 | 1999 |
| 4 | [Efacec](https://www.tamtam.ai/c/efacec) (efacec.com)<br>Innovative solutions provider for energy, mobility, and the environment Specializing in technologically advanced products and systems for global markets | Appliances, Electrical, and Electronics Manufacturing | 🇵🇹 Matosinhos | 2,312 | 1948 |
| 5 | [The Navigator Company](https://www.tamtam.ai/c/the-navigator-company) (thenavigatorcompany.com)<br>Integrated producer of forest, pulp, paper, tissue, and energy with strong focus on innovation, sustainability, and carbon neutrality goals. | Paper and Forest Product Manufacturing | 🇵🇹 Lisbon | 2,282 | 1953 |
| 6 | [Martifer Group](https://www.tamtam.ai/c/martifer-group) (martifer.com)<br>A multinational industrial group focused on the metallic construction sector, with around 1,400 employees and listed on Euronext Lisbon | Construction | 🇵🇹 Oliveira de Frades | 1,791 | 1990 |
| 7 | [Bosch Portugal](https://www.tamtam.ai/c/bosch-portugal) (bosch.pt)<br>A leading IoT company offering innovative solutions for smart homes, cities, industry, and mobility Focused on creating a connected lifestyle and improving quality of life | Software Development | 🇵🇹 Lisbon | 1,542 | 1911 |
| 8 | [dst group](https://www.tamtam.ai/c/dst-group) (dstsgps.com)<br>A leader in construction and public works, the group has expanded into environmental, telecommunications, and renewable energy sectors both nationally and internationally | Construction | 🇵🇹 Braga | 1,470 | 1940 |
| 9 | [REN](https://www.tamtam.ai/c/ren-lisboa) (ren.pt)<br>The company operates in electricity and gas transmission, renewable energy generation, telecommunications, and international markets with a focus on efficiency and sustainable development | Utilities | 🇵🇹 Lisbon | 1,311 | 1994 |
| 10 | [E-REDES](https://www.tamtam.ai/c/e-redes) (e-redes.pt)<br>A company that has been distributing energy since 1976, focusing on excellence, sustainability, digital transformation, and innovation for a better future | Utilities | 🇵🇹 Lisbon | 1,199 | 1976 |
| 11 | [Grupo Visabeira](https://www.tamtam.ai/c/grupo-visabeira) (grupovisabeira.com)<br>A multinational holding company with diverse interests in telecommunications, energy, construction, ceramics, tourism, hospitality, and other industries across multiple countries | Investment Management | 🇵🇹 Viseu | 1,106 | 1980 |
| 12 | [CJR Renewables](https://www.tamtam.ai/c/cjr-renewables) (cjr-renewables.com)<br>Provider of integrated services for wind farms and solar plants, including design, construction, installation, transportation, and turbine erection, offering flexible and turnkey solutions for a greener future | Construction | 🇵🇹 Matosinhos | 993 | 2002 |
| 13 | [MCA](https://www.tamtam.ai/c/mca-guimaraes) (mcagroup.com)<br>A Portuguese group founded in 1998, focused on Energies, Urban Development, Infrastructures, and Healthcare, with international presence in multiple geographical clusters | Construction | 🇵🇹 Guimarães | 764 | 1998 |
| 14 | [EDP Portugal](https://www.tamtam.ai/c/edp-portugal) (edp.com)<br>A global energy company focused on promoting renewable sources, achieving 100% green energy by 2030, and supporting decentralized solar energy and electric mobility | Utilities | 🇵🇹 Lisbon | 707 |  |
| 15 | [Petrotec Group](https://www.tamtam.ai/c/petrotec-group) (petrotec.com)<br>A group of private companies specializing in equipment and management systems for the oil industry, as well as smart mobility solutions globally | Energy Technology | 🇵🇹 Guimarães | 693 | 1983 |
| 16 | [ENDIPREV](https://www.tamtam.ai/c/endiprev) (muehlhanwindservice.com)<br>Specializing in advanced fault diagnosis, commissioning, troubleshooting, maintenance, and operation of wind turbines to maximize availability and efficiency in wind farms | Services for Renewable Energy | 🇵🇹 Porto | 641 | 2009 |
| 17 | [Oman Oil Marketing Company](https://www.tamtam.ai/c/oman-oil-marketing-company) (oomco.com)<br>A leading Omani fuel marketing company operating retail, commercial, aviation, marine fuel services along with non-fuel services, focused on strategic growth globally | Oil and Gas | 🇵🇹 Mina Al Fahal | 504 | 2003 |
| 18 | [METALOGALVA](https://www.tamtam.ai/c/metalogalva) (metalogalva.pt)<br>A leading steel structure producer with a focus on sustainable development, innovation, and employee well-being, ensuring high quality products and customer satisfaction | Industrial Machinery Manufacturing | 🇵🇹 Trofa | 477 | 1971 |
| 19 | [Visabeira Global SGPS, SA](https://www.tamtam.ai/c/visabeira-global-sgps-sa) (visabeiraglobal.com)<br>The company operates in telecommunications, energy, technology, and construction, offering a wide range of services from network engineering to building maintenance | Telecommunications | 🇵🇹 Viseu | 463 |  |
| 20 | [TMG Group](https://www.tamtam.ai/c/tmg-group) (tmg.pt)<br>A diverse company with a strong legacy focused on sustainable growth, quality products, and environmental responsibility in various industries | Textile Manufacturing | 🇵🇹 Vila nova de Famalicão | 433 | 1937 |
| 21 | [CSWIND PT](https://www.tamtam.ai/c/cswind-pt) (cswind.com)<br>Manufactures steel equipment and solutions for the wind energy market, specializing in wind towers, with facilities in Portugal Email for job opportunities | Renewable Energy Equipment Manufacturing | 🇵🇹 Sever do Vouga | 428 | 1980 |
| 22 | [Greenvolt Next](https://www.tamtam.ai/c/greenvolt-next) (greenvolt.com)<br>A renewable energy industry leader providing tailored energy solutions in 12 European markets, such as on-site EPCs, corporate PPAs, self-consumption, and more | Renewable Energy Semiconductor Manufacturing | 🇵🇹 Lisbon | 372 |  |
| 23 | [ENGIE Energy Solutions](https://www.tamtam.ai/c/engie-energy-solutions) (engie.pt)<br>Global energy player focusing on electricity, natural gas, and energy services, providing innovative and efficient solutions for sustainable energy and climate change challenges | Renewables & Environment | 🇵🇹 Lisbon | 351 | 1983 |
| 24 | [Veolia Portugal](https://www.tamtam.ai/c/veolia-portugal) (veolia.pt)<br>A global group providing innovative solutions for water, waste, and energy management Committed to sustainable practices and ecological transformation worldwide | Environmental Services | 🇵🇹 Paço de Arcos | 326 | 1992 |
| 25 | [Goldenergy](https://www.tamtam.ai/c/goldenergy) (goldenergy.pt)<br>A company providing electricity and natural gas with a focus on customer satisfaction, competitive pricing, sustainability, and a dedicated team | Utilities | 🇵🇹 Vila Real | 323 | 2008 |
| 26 | [TCPI - TECNOPROJECTO INTERNACIONAL (a PONTICELLI FRÈRES GROUP Company)](https://www.tamtam.ai/c/tcpi-tecnoprojecto-internacional-a-ponticelli-freres-group-company) (tcpi.pt)<br>An international E&I Engineering, Construction, and Maintenance company specializing in industrial projects including power plants, pipelines, refineries, and specialized technical installations | Oil and Gas | 🇵🇹 Porto Salvo | 321 | 1986 |
| 27 | [Grupo Alves Bandeira](https://www.tamtam.ai/c/grupo-alves-bandeira) (grupoalvesbandeira.com)<br>A multinational company in Portugal that operates in energy, mobility, and aftermarket sectors, creating value with its own products and representing international brands | Oil and Gas | 🇵🇹 Mealhada | 314 | 1974 |
| 28 | [PAINHAS SA](https://www.tamtam.ai/c/painhas-sa) (painhas.pt)<br>Established in Portugal in 1980, this company specializes in energy and telecommunication networks, providing global solutions through highly skilled teams and advanced technology | Construction | 🇵🇹 Viana do Castelo | 311 | 1980 |
| 29 | [Águas do Porto, EM](https://www.tamtam.ai/c/aguas-do-porto-em) (aguasdoporto.pt)<br>A municipal water utility managing full water cycle in Porto, Portugal, serving households, focusing on efficiency, creating value, and environmental best practices | Utilities | 🇵🇹 Porto | 302 | 2006 |
| 30 | [Powerdot](https://www.tamtam.ai/c/powerdot) (powerdot.eu)<br>Development and operation of electric vehicle charging stations in parking lots, offering turnkey solutions at no cost to owners. | Environmental Services | 🇵🇹 Lisbon | 219 | 2018 |
| 31 | [PRF - Gas Solutions](https://www.tamtam.ai/c/prf-gas-solutions) (prf.pt)<br>Specializing in engineering, constructing, and maintaining fuel gas infrastructure including LNG, CNG, hydrogen, biogas systems, refueling stations, satellite plants, and bunkering systems | Construction | 🇵🇹 Leiria | 195 | 1991 |
| 32 | [Finerge](https://www.tamtam.ai/c/finerge) (finerge.pt)<br>Leading provider of sustainable energy solutions, specializing in wind and solar power generation to reduce CO2 emissions and promote clean electricity | Renewable Energy Power Generation | 🇵🇹 Matosinhos | 185 | 1996 |
| 33 | [EDIA - Empresa de Desenvolvimento e Infra-estruturas do Alqueva, S.A.](https://www.tamtam.ai/c/edia-empresa-de-desenvolvimento-e-infra-estruturas-do-alqueva-s-a) (edia.pt)<br>A state-owned company responsible for designing, building, and operating Alqueva Multi-purpose Undertaking infrastructures to promote economic and social development | Utilities | 🇵🇹 Beja | 185 | 1995 |
| 34 | [KLC](https://www.tamtam.ai/c/klc) (klc.pt)<br>Specializing in electric mobility solutions for businesses, condos, and OPCs, offering a cost-free charging network design based on client needs | Environmental Services | 🇵🇹 Lisbon | 173 | 2016 |
| 35 | [i-charging](https://www.tamtam.ai/c/i-charging) (i-charging.tech)<br>Specializing in electric vehicle charging infrastructure, we develop innovative hardware and software solutions to optimize operations and grid utilization globally | Appliances, Electrical, and Electronics Manufacturing | 🇵🇹 Porto | 100 | 2019 |
| 36 | [Grupo TIEL](https://www.tamtam.ai/c/grupo-tiel) (tiel.pt)<br>With 40 years of experience, this company provides transportation services with a focus on professionalism, excellence, safety, innovation, sustainability, and social responsibility | Holding Companies | 🇵🇹 Maçãs de D. Maria | 69 | 1968 |
| 37 | [GENERG](https://www.tamtam.ai/c/generg) (generg.pt)<br>Specializes in renewable energy production, part of a global energy company focused on achieving carbon neutrality by 2050 | Renewable Energy Power Generation | 🇵🇹 Lisbon | 66 | 1988 |
| 38 | [ENERGETUS S.A.](https://www.tamtam.ai/c/energetus-s-a) (energetus.pt)<br>This company specializes in developing and installing customized energy solutions, including co-generation, biomass, hydroelectric, and wind power plants, with experienced engineers and technicians available for maintenance | Industrial Machinery Manufacturing | 🇵🇹 Lisbon | 65 | 2002 |
| 39 | [Addvolt](https://www.tamtam.ai/c/addvolt) (addvolt.com)<br>Leading global transport electrification with innovative plug-in electric technology, reducing costs and emissions for vehicles worldwide through sustainable energy solutions | Motor Vehicle Manufacturing | 🇵🇹 Porto | 58 | 2014 |
| 40 | [Master Vantagem Portugal](https://www.tamtam.ai/c/master-vantagem-portugal) (mastervantagem.com)<br>A company operating since 2013 in Portugal and Spain, providing electricity, gas, energy efficiency solutions, solar energy, connectivity services, targeting various client types | Business Consulting and Services | 🇵🇹 Benedita | 56 | 2013 |
| 41 | [miio](https://www.tamtam.ai/c/miio) (miio.com)<br>Simplifies electric vehicle charging and travel across Europe, offering route planning, charging access, and a marketplace for electric mobility solutions. | IT Services and IT Consulting | 🇵🇹 Aveiro | 55 | 2019 |
| 42 | [Elergone Energia](https://www.tamtam.ai/c/elergone-energia) (elergone.pt)<br>With almost 15 years of experience in the energy sector, this company focuses on sustainable energy solutions, energy optimization, solar projects, efficiency, electric mobility, and service management | Renewables & Environment | 🇵🇹 Leça da Palmeira | 54 | 2008 |
| 43 | [Helexia Portugal](https://www.tamtam.ai/c/helexia-portugal) (helexia.pt)<br>Integrated solutions for energy production and management in large buildings: development of photovoltaic projects, energy efficiency solutions, investment, construction, operation, and long-term project management services provided | Services for Renewable Energy | 🇵🇹 Lisbon | 51 |  |
| 44 | [HyChem SA](https://www.tamtam.ai/c/hychem-sa) (hychem.pt)<br>A company specializing in hydrogen chemistry, promoting carbon neutrality through renewable energy, circular economy, and sustainability solutions in industrial transformation | Chemical Manufacturing | 🇵🇹 Vila Franca de Xira | 38 | 1934 |
| 45 | [Fusion Fuel](https://www.tamtam.ai/c/fusion-fuel) (fusion-fuel.eu)<br>This company accelerates the energy transition by producing zero-emissions Green Hydrogen using a revolutionary electrolyzer solution and renewable energy | Renewable Energy Semiconductor Manufacturing | 🇵🇹 Sintra | 27 | 2020 |
| 46 | [Powersil](https://www.tamtam.ai/c/powersil) (powersil.pt)<br>Integrated energy solutions provider offering turnkey solutions for generator sets, automatisms, hybrid solar energy solutions, industrial services, and high performance products from leading brands | Commercial and Industrial Machinery Maintenance | 🇵🇹 Vialonga | 26 | 2002 |
| 47 | [ENGIE Hemera](https://www.tamtam.ai/c/engie-hemera) (engie-hemera.com)<br>Specialist in designing, installing, and operating medium to large-scale solar photovoltaic systems for B2B clients, with a focus on industries, retail, logistics, and agriculture | Renewable Energy Semiconductor Manufacturing | 🇵🇹 Algés | 17 |  |
| 48 | [MAGNUM CAP](https://www.tamtam.ai/c/magnum-cap) (magnumcap.com)<br>Develops and provides reliable charging technologies and infrastructure for electric vehicles, including fast, normal, and home charging systems, focusing on usability, safety, and grid preservation. | Appliances, Electrical, and Electronics Manufacturing | 🇵🇹 Lisbon | 17 | 2010 |
| 49 | [Hydrom](https://www.tamtam.ai/c/hydrom) (hydrom.om)<br>A company established to position Oman as a global green hydrogen hub, focused on empowering a sustainable future | Renewable Energy Power Generation | 🇵🇹 Muscat | 17 | 2022 |
| 50 | [INFORGÁS - COMÉRCIO DE GÁS LDA](https://www.tamtam.ai/c/inforgas-comercio-de-gas-lda) (inforgas.pt)<br>The company is an innovative and trustworthy gas trading business operating in various sectors, offering quality products and services with a focus on customer satisfaction | Oil and Gas | 🇵🇹 Fundão | 13 | 1995 |

## 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 Nov 12, 2026.

## More company lists in Portugal

- [The largest companies in Portugal](https://www.tamtam.ai/l/largest-companies-portugal) (1,725)
- [Multinational companies in Portugal](https://www.tamtam.ai/l/multinational-companies-portugal) (427)
- [Public sector organisations in Portugal](https://www.tamtam.ai/l/public-sector-organisations-portugal) (167)
- [Manufacturers in Portugal](https://www.tamtam.ai/l/manufacturers-portugal) (167)
- [Retail chains in Portugal](https://www.tamtam.ai/l/retail-chains-portugal) (158)
- [Critical infrastructure operators in Portugal](https://www.tamtam.ai/l/critical-infrastructure-operators-portugal) (156)
- [Companies with in-house R&D in Portugal](https://www.tamtam.ai/l/r-and-d-companies-portugal) (154)
- [Education providers in Portugal](https://www.tamtam.ai/l/education-companies-portugal) (135)
- [IT services companies in Portugal](https://www.tamtam.ai/l/it-services-companies-portugal) (128)
- [IT Services and IT Consulting companies in Portugal](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-portugal) (111)
- [Higher Education companies in Portugal](https://www.tamtam.ai/l/higher-education-companies-portugal) (109)
- [Corporate groups and holding companies in Portugal](https://www.tamtam.ai/l/holding-companies-portugal) (99)
- [Software Development companies in Portugal](https://www.tamtam.ai/l/software-development-companies-portugal) (96)
- [Financial services firms in Portugal](https://www.tamtam.ai/l/financial-services-firms-portugal) (95)
- [Companies with a mobile app in Portugal](https://www.tamtam.ai/l/companies-with-mobile-app-portugal) (94)
- [Professional services firms in Portugal](https://www.tamtam.ai/l/professional-services-firms-portugal) (91)
- [Healthcare providers in Portugal](https://www.tamtam.ai/l/healthcare-providers-portugal) (84)
- [Consulting firms in Portugal](https://www.tamtam.ai/l/consulting-firms-portugal) (79)
- [Research institutes in Portugal](https://www.tamtam.ai/l/research-institutes-portugal) (74)
- [Hospitals and Health Care companies in Portugal](https://www.tamtam.ai/l/hospitals-and-health-care-companies-portugal) (70)
- [SaaS companies in Portugal](https://www.tamtam.ai/l/saas-companies-portugal) (63)
- [Hotel and hospitality groups in Portugal](https://www.tamtam.ai/l/hospitality-groups-portugal) (61)
- [Hardware manufacturers in Portugal](https://www.tamtam.ai/l/hardware-companies-portugal) (60)
- [E-commerce companies in Portugal](https://www.tamtam.ai/l/ecommerce-companies-portugal) (56)

## The same list elsewhere

- [Energy companies in the world](https://www.tamtam.ai/l/energy-companies-in-the-world) (10,502)
- [Energy companies in Europe](https://www.tamtam.ai/l/energy-companies-in-europe) (4,235)

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Source: https://www.tamtam.ai/l/energy-companies-portugal