# Energy companies headquartered in Europe

Tamtam tracks 4,235 energy companies headquartered in Europe. This list ranks the 100 largest by number of employees on LinkedIn, led by Siemens, Shell and Bosch. Their median headcount is 15,000. Half of them were founded in 1957 or later. The most common headquarters are London (9), Madrid (5) and Courbevoie (4).

This list features large energy companies operating in Europe, primarily focusing on traditional and renewable energy generation, oil and gas, and the manufacturing of related industrial and electrical equipment. Many of these firms are headquartered in key European cities like London, Paris, and Munich, indicating a strong regional presence in the energy sector.

Prominent examples include Shell, a global energy company focused on cleaner solutions; Siemens, a technology company in industry, infrastructure, and healthcare; Bosch, a leading global supplier of technology and services; and EDF, which builds a net-zero energy future. The data reveals a mix of established industrial giants, with Siemens founded in 1847 and Schneider Electric in 1836, alongside newer entities like Siemens Energy, founded in 2020.

🌍 Europe · 100 companies · Updated Nov 14, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Siemens](https://www.tamtam.ai/c/siemens) (siemens.com)<br>A technology company focused on industry, infrastructure, transport, and healthcare, creating innovative solutions to transform industries and markets globally | Automation Machinery Manufacturing | 🇩🇪 Munich | 273,649 | 1847 |
| 2 | [Shell](https://www.tamtam.ai/c/shell) (shell.com)<br>A global energy company with a focus on cleaner energy solutions, serving millions of customers through retail service stations worldwide | Oil and Gas | 🇬🇧 London | 208,511 |  |
| 3 | [Bosch](https://www.tamtam.ai/c/bosch) (bosch.com)<br>Leading global supplier of technology and services, shaping trends like automation, electrification, digitalization, and sustainability across diverse business sectors worldwide. | Software Development | 🇩🇪 Gerlingen-Schillerhöhe | 158,647 |  |
| 4 | [ABB](https://www.tamtam.ai/c/abb-zurich) (abb.com)<br>Connects engineering and software to optimize how things are manufactured, moved, powered, and operated for a sustainable, resource-efficient future, driving industrial transformation. | Automation Machinery Manufacturing | 🇨🇭 Zurich | 146,155 |  |
| 5 | [MITSUBISHI ELECTRIC](https://www.tamtam.ai/c/mitsubishi-electric) (mitsubishielectric.com)<br>A leader in electric and electronic equipment manufacturing, focusing on Energy Systems, Industrial Automation, Information Systems, Electronic Devices, and Home Appliances | Appliances, Electrical, and Electronics Manufacturing | 🇪🇸 Chiyoda-ku | 146,000 | 1921 |
| 6 | [EDF](https://www.tamtam.ai/c/edf-paris) (edf.fr)<br>builds a net-zero energy future with electricity, innovative solutions, and services, to help save the planet and drive wellbeing and economic development. | Electric Power Generation | 🇫🇷 Paris | 93,235 |  |
| 7 | [Schneider Electric](https://www.tamtam.ai/c/schneider-electric) (se.com)<br>Global energy technology leader, providing efficiency and sustainability through electrifying, automating, and digitalizing industries, businesses, and homes with intelligent devices and digital services. | Automation Machinery Manufacturing | 🇫🇷 Rueil-Malmaison | 87,938 | 1836 |
| 8 | [TotalEnergies](https://www.tamtam.ai/c/totalenergies) (totalenergies.com)<br>Global energy company with 105,000 employees focused on energy transition, safety, ethics, innovation, and career development worldwide. | Oil and Gas | 🇫🇷 Paris La Défense Cedex | 86,609 |  |
| 9 | [bp](https://www.tamtam.ai/c/bp) (bp.com)<br>Investing in a balanced energy system by transitioning from oil and gas to lower-carbon energy, convenience stores, and power trading | Oil and Gas | 🇬🇧 London | 85,000 | 1909 |
| 10 | [DRÄXLMAIER Group](https://www.tamtam.ai/c/draxlmaier-group) (draexlmaier.com)<br>Development and manufacturing of wiring harnesses, electrical components, interiors, and battery systems for premium automotive manufacturers worldwide. | Motor Vehicle Manufacturing | 🇩🇪 Vilsbiburg | 75,000 | 1958 |
| 11 | [ExxonMobil](https://www.tamtam.ai/c/exxonmobil) (corporate.exxonmobil.com)<br>Scientists and engineers pioneering research, pursuing new technologies to reduce emissions, creating efficient fuels, meeting global energy needs, aiming net-zero emissions by 2050. | Oil and Gas | 🇨🇿 | 73,163 |  |
| 12 | [Linde](https://www.tamtam.ai/c/linde) (linde.com)<br>Global industrial gases and engineering company providing high-quality solutions and services for various industries, supporting sustainability, decarbonization, and planet protection | Chemical Manufacturing | 🇬🇧 Woking | 66,000 | 1879 |
| 13 | [Siemens Energy](https://www.tamtam.ai/c/siemens-energy) (siemens-energy.com)<br>A global energy technology company offering products and solutions for a sustainable future, covering the energy value chain with conventional and renewable technology | Renewable Energy Power Generation | 🇩🇪 | 56,539 | 2020 |
| 14 | [Eaton](https://www.tamtam.ai/c/eaton) (eaton.com)<br>Intelligent power management provider working towards a sustainable future by helping customers manage power, transition to renewable energy, and solve power management challenges globally | Appliances, Electrical, and Electronics Manufacturing | 🇮🇪 Dublin | 51,011 |  |
| 15 | [Veolia](https://www.tamtam.ai/c/veolia-aubervilliers) (veolia.com)<br>Works to build environmental security, cleans up pollution, reduces carbon emissions, and regenerates resources through water, waste, and energy solutions. | Environmental Services | 🇫🇷 Aubervilliers | 50,280 | 1853 |
| 16 | [ENGIE](https://www.tamtam.ai/c/engie) (engie.com)<br>Global energy value chain operator, from renewable electricity production and green gas to infrastructure management and energy supply for diverse customers. | Renewable Energy Power Generation | 🇫🇷 La Garenne-Colombes | 45,706 |  |
| 17 | [Schaeffler](https://www.tamtam.ai/c/schaeffler) (schaeffler.com)<br>A global leader in motion technology, the company provides innovative solutions for electric mobility, CO₂-efficient drives, Industry 40, and renewable energies | Manufacturing | 🇩🇪 Herzogenaurach | 45,108 | 1946 |
| 18 | [Iberdrola](https://www.tamtam.ai/c/iberdrola) (iberdrola.com)<br>A global leader in renewable energy and electricity, focusing on sustainable and efficient services for millions worldwide with investments in clean energy and digital transformation | Electric Power Generation | 🇪🇸 Bilbao | 45,000 | 1901 |
| 19 | [Poste Italiane](https://www.tamtam.ai/c/poste-italiane) (poste.it)<br>Largest Italian postal and parcel delivery network, financial services through BancoPosta, and leading life insurance and asset management provider. | Transportation, Logistics, Supply Chain and Storage | 🇮🇹 Rome | 42,974 |  |
| 20 | [Air Liquide](https://www.tamtam.ai/c/air-liquide) (airliquide.com)<br>A global leader in gases, technologies, and services for industry and health, focusing on innovation and sustainability for a better future | Chemical Manufacturing | 🇫🇷 Paris | 40,100 |  |
| 21 | [Hitachi Energy](https://www.tamtam.ai/c/hitachi-energy) (hitachienergy.com)<br>Global leader in electrification providing advanced power grid technologies and digital solutions to support sustainable energy and decarbonization efforts. | Utilities | 🇨🇭 Zurich | 36,864 |  |
| 22 | [ACCIONA](https://www.tamtam.ai/c/acciona) (acciona.com)<br>The company specializes in developing regenerative infrastructure with a focus on sustainability, leading the transition to a low-carbon economy with a positive impact on people and the planet | Utilities | 🇪🇸 Madrid | 33,828 |  |
| 23 | [thyssenkrupp](https://www.tamtam.ai/c/thyssenkrupp) (thyssenkrupp.com)<br>An international industrial and technology company focused on developing innovative and sustainable solutions for the future across various sectors | Industrial Machinery Manufacturing | 🇩🇪 Essen | 32,389 |  |
| 24 | [Eni](https://www.tamtam.ai/c/eni) (eni.com)<br>Integrated energy business, decarbonized products, renewable and retail, bio-refineries, biomethane, low-carbon energy, mobility services. | Oil and Gas | 🇮🇹 Rome | 32,259 |  |
| 25 | [Saipem](https://www.tamtam.ai/c/saipem) (saipem.com)<br>Global leader in engineering and construction for energy and infrastructure projects worldwide, offering offshore and onshore services with a focus on sustainability and innovation | Engineering Services | 🇮🇹 Milan | 32,000 | 1957 |
| 26 | [Vestas](https://www.tamtam.ai/c/vestas) (vestas.com)<br>Global leader in sustainable energy solutions, designing, manufacturing, installing, and servicing wind turbines worldwide, using data to optimize wind power solutions | Renewable Energy Equipment Manufacturing | 🇩🇰 Aarhus | 31,864 |  |
| 27 | [Rolls-Royce](https://www.tamtam.ai/c/rolls-royce) (rolls-royce.com)<br>Engineering excellence driving critical technologies for air, sea, and land, powering, protecting, and connecting people worldwide. | Industrial Machinery Manufacturing | 🇬🇧 London | 31,649 |  |
| 28 | [Enel Group](https://www.tamtam.ai/c/enel-group) (enel.com)<br>Multinational company reshaping the future of energy, a leading integrated electricity operator. Distributes and supplies electricity to millions of end users. | Utilities | 🇮🇹 Rome | 31,218 | 1962 |
| 29 | [E.ON](https://www.tamtam.ai/c/e-on-essen) (eon.com)<br>Leading energy group in Europe, operating energy networks, providing innovative customer solutions, and driving the energy transition with a commitment to sustainability and climate protection | Utilities | 🇩🇪 Essen | 30,521 | 2000 |
| 30 | [Weatherford](https://www.tamtam.ai/c/weatherford) (weatherford.com)<br>A global energy services company with 17,000 team members in 75 countries, providing solutions for the challenges of the energy industry | Oil and Gas | 🇮🇪 Dublin | 29,301 | 1987 |
| 31 | [Prysmian](https://www.tamtam.ai/c/prysmian) (prysmian.com)<br>A global leader in high-tech cables & systems for energy and telecom, driving the energy transition and digitalization worldwide | Manufacturing | 🇮🇹 Milan | 28,000 | 1872 |
| 32 | [EnBW Energie Baden-Württemberg AG](https://www.tamtam.ai/c/enbw-energie-baden-wurttemberg-ag) (enbw.com)<br>A leading energy supply company in Germany and Europe with a workforce of 20,000, providing electricity, gas, water, and energy-related products and services to 55 million customers | Utilities | 🇩🇪 Karlsruhe | 27,000 |  |
| 33 | [repsol](https://www.tamtam.ai/c/repsol) (repsol.com)<br>A leading player in the oil and gas industry, involved in exploration, production, transformation, development, and marketing of efficient, sustainable energy solutions globally | Oil and Gas | 🇪🇸 Madrid | 26,030 |  |
| 34 | [TechnipFMC](https://www.tamtam.ai/c/technipfmc) (technipfmc.com)<br>A leading technology provider in the energy industry, offering integrated projects and services to develop energy resources while prioritizing sustainability | Oil and Gas | 🇬🇧 Newcastle upon Tyne | 25,875 |  |
| 35 | [VINCI Energies](https://www.tamtam.ai/c/vinci-energies) (vinci-energies.com)<br>Contributes to environmental transition by implementing customized multi-technical solutions from design to maintenance, enhancing infrastructure reliability, efficiency, and sustainability for energy and digital sectors. | IT Services and IT Consulting | 🇫🇷 Nanterre | 25,848 |  |
| 36 | [Enedis](https://www.tamtam.ai/c/enedis) (enedis.fr)<br>They manage the public electricity distribution network across most of France, with nearly 39,000 employees maintaining and expanding the 13 million km network | Utilities | 🇫🇷 Puteaux | 24,479 |  |
| 37 | [Danfoss](https://www.tamtam.ai/c/danfoss) (danfoss.com)<br>Engineering innovative solutions for machine productivity, emissions reduction, energy efficiency, and electrification in various industries worldwide since 1933 Serving customers in 100+ countries | Industrial Machinery Manufacturing | 🇩🇰 Nordborg | 23,458 |  |
| 38 | [RWE](https://www.tamtam.ai/c/rwe) (rwe.com)<br>A global energy company leading the transition to green energy through significant investments in renewable projects, decarbonization, and net-zero goals | Utilities | 🇩🇪 Essen | 20,000 | 1898 |
| 39 | [Siemens Gamesa](https://www.tamtam.ai/c/siemens-gamesa) (siemensgamesa.com)<br>Global technology leader in renewable energy industry, specializing in wind turbine development, manufacturing, installation, and maintenance Driving energy transition towards sustainability | Renewable Energy Semiconductor Manufacturing | 🇪🇸 Zamudio | 19,821 | 2017 |
| 40 | [Technip Energies](https://www.tamtam.ai/c/technip-energies) (ten.com)<br>Leading energy engineering & technology company focused on LNG, hydrogen, ethylene, sustainable chemistry, and CO2 management Committed to accelerating the energy transition globally | Engineering Services | 🇫🇷 Paris | 18,645 |  |
| 41 | [Centrica](https://www.tamtam.ai/c/centrica) (centrica.com)<br>A leading energy services provider with a focus on sustainability, offering zero carbon electricity to millions of customers through various brands | Utilities | 🇬🇧 Windsor | 18,164 |  |
| 42 | [Wärtsilä](https://www.tamtam.ai/c/wartsila) (wartsila.com)<br>This company empowers sustainable societies by providing innovative technology and services for improved environmental and economic performance globally | Industrial Machinery Manufacturing | 🇫🇮 Helsinki | 18,000 | 1834 |
| 43 | [Glencore](https://www.tamtam.ai/c/glencore) (glencore.com)<br>Producer, marketer of over 60 commodities, supporting decarbonisation, meeting energy needs through global asset network, customer and supplier spanning the globe. | Mining | 🇭🇷 Baar | 17,442 |  |
| 44 | [National Grid](https://www.tamtam.ai/c/national-grid) (nationalgrid.com)<br>Operate and develop electricity transmission and distribution networks, natural gas systems, and invest in clean energy infrastructure and technology ventures. | Utilities | 🇬🇧 London | 17,432 |  |
| 45 | [Aker Solutions](https://www.tamtam.ai/c/aker-solutions) (akersolutions.com)<br>Provides integrated products and services for oil, gas, and renewable energy sectors, focusing on sustainable and low-carbon energy solutions. | Oil and Gas | 🇳🇴 Fornebu | 16,998 |  |
| 46 | [Equinor](https://www.tamtam.ai/c/equinor) (equinor.com)<br>Develops oil, gas, wind, and solar energy across over 30 countries, a major offshore operator and growing in renewables. | Oil and Gas | 🇳🇴 Stavanger | 16,638 | 1972 |
| 47 | [Vattenfall](https://www.tamtam.ai/c/vattenfall) (vattenfall.com)<br>This European energy company supplies electricity to industries and homes while striving for fossil freedom through innovation and cooperation | Utilities | 🇸🇪 Solna | 15,849 | 1909 |
| 48 | [Eiffage Énergie Systèmes](https://www.tamtam.ai/c/eiffage-energie-systemes) (eiffageenergiesystemes.com)<br>Designs, builds, operates, and maintains energy systems, offering innovative solutions in electrical, industrial, climatic, and energy engineering. | Environmental Services | 🇫🇷 Velizy-Villacoublay | 15,518 |  |
| 49 | [EQUANS](https://www.tamtam.ai/c/equans) (equans.com)<br>A global leader in multi-technical services, providing customized solutions for building improvement and supporting sustainable development with a highly qualified team | Environmental Services | 🇫🇷 Courbevoie | 15,419 |  |
| 50 | [Wiener Stadtwerke GmbH](https://www.tamtam.ai/c/wiener-stadtwerke-gmbh) (wienerstadtwerke.at)<br>The company group in Vienna ensures reliable energy, mobility, and public services while actively pursuing a sustainable climate transition with innovative solutions | Utilities | 🇦🇹 Vienna | 15,000 |  |
| 51 | [Dalkia](https://www.tamtam.ai/c/dalkia) (dalkia.fr)<br>Invests, develops renewable energy, and assists clients for energy savings, CO2 reduction by maintaining and operating industrial, commercial, and residential facilities. | Environmental Services | 🇫🇷 Saint-André-lez-Lille | 14,557 |  |
| 52 | [Framatome](https://www.tamtam.ai/c/framatome) (framatome.com)<br>Designs, services and installs components, fuel, and instrumentation and control systems for global nuclear power plants while providing digital and technical expertise. | Utilities | 🇫🇷 Courbevoie | 14,188 | 1958 |
| 53 | [ANDRITZ](https://www.tamtam.ai/c/andritz) (andritz.com)<br>A global supplier of plants, equipment, and services for various industries including hydropower, pulp & paper, metalworking, and solid/liquid separation | Machinery Manufacturing | 🇦🇹 Graz | 14,107 |  |
| 54 | [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 |  |
| 55 | [Hutchinson](https://www.tamtam.ai/c/hutchinson) (hutchinson.com)<br>Designs, produces customized materials, connected solutions for global customers: land, air, sea. Leaders in vibration control, fluid management, sealing technologies. | Motor Vehicle Manufacturing | 🇫🇷 Paris | 13,625 | 1853 |
| 56 | [Subsea7](https://www.tamtam.ai/c/subsea7) (subsea7.com)<br>Provides offshore services supporting lower-carbon oil and gas evolution, renewable energy growth, and emerging energy solutions for energy transition. | Oil and Gas | 🇬🇧 London | 13,582 | 2002 |
| 57 | [Norsk Hydro](https://www.tamtam.ai/c/norsk-hydro) (hydro.com)<br>Development of sustainable industries including aluminium production, energy, metal recycling, renewables, and batteries with global operations and innovation focus. | Mining | 🇳🇴 Oslo | 13,192 | 1905 |
| 58 | [Valmet](https://www.tamtam.ai/c/valmet) (valmet.com)<br>A global leader in process technologies, automation, and services for pulp, paper, energy industries, striving to enhance customer performance worldwide | Machinery Manufacturing | 🇫🇮 Espoo | 13,138 |  |
| 59 | [SSE plc](https://www.tamtam.ai/c/sse-plc) (sse.com)<br>The company is focused on investing in a cleaner, more affordable, and secure energy system to drive positive change in the industry | Utilities | 🇬🇧 Perth | 12,865 |  |
| 60 | [SPIE](https://www.tamtam.ai/c/spie) (spie.com)<br>Offers multi-technical services for energy and communications, assisting clients with designing, building, operating, and maintaining energy-efficient, environmentally-friendly facilities and infrastructure. | Environmental Services | 🇫🇷 Cergy Pontoise Cedex | 12,741 | 1900 |
| 61 | [Orano](https://www.tamtam.ai/c/orano) (orano.group)<br>International operator in nuclear materials, provides high-value products and services across the entire fuel cycle, addressing energy and health challenges through expertise and innovation. | Nuclear Electric Power Generation | 🇫🇷 Châtillon | 12,605 | 2018 |
| 62 | [ENGIE Solutions France](https://www.tamtam.ai/c/engie-solutions-france) (engie-solutions.com)<br>Provides comprehensive, lasting solutions to businesses, industries, and communities for carbon neutrality, improving infrastructure competitiveness, city attractiveness, and living/working comfort. | Services for Renewable Energy | 🇫🇷 La Garenne-Colombes | 12,252 |  |
| 63 | [INEOS](https://www.tamtam.ai/c/ineos) (ineos.com)<br>Global manufacturer of raw materials and energy producer striving to reduce carbon emissions, create sustainable products, and improve living standards worldwide | Chemical Manufacturing | 🇬🇧 London | 12,070 | 1998 |
| 64 | [Equans France](https://www.tamtam.ai/c/equans-france) (equans.fr)<br>Designs, installs, and delivers bespoke solutions optimizing equipment and usage for businesses, local authorities, and industrial players in energy, industrial, and digital transitions. | Environmental Services | 🇫🇷 Courbevoie | 11,029 | 2021 |
| 65 | [Ørsted](https://www.tamtam.ai/c/orsted) (orsted.com)<br>A global leader in green energy, developing wind and solar farms, energy storage facilities, bioenergy plants, with a focus on sustainability and reducing coal consumption | Renewable Energy Power Generation | 🇩🇰 Fredericia | 11,000 | 2006 |
| 66 | [Transocean](https://www.tamtam.ai/c/transocean) (deepwater.com)<br>A leading provider of offshore contract drilling services for oil and gas wells, specializing in deepwater and harsh environment drilling with a versatile fleet of mobile units | Oil and Gas | 🇨🇭 Zug | 10,702 |  |
| 67 | [Elecnor Group](https://www.tamtam.ai/c/elecnor-group) (grupoelecnor.com)<br>Global corporation specializing in engineering, construction, sustainable projects, infrastructure investments, renewable energy, asset management, and energy transmission across 50 countries. | Construction | 🇪🇸 Madrid | 10,383 | 1958 |
| 68 | [British Gas](https://www.tamtam.ai/c/british-gas) (britishgas.co.uk)<br>Providing affordable energy services and support to millions of UK homes and businesses, focusing on saving energy and money. | Utilities | 🇬🇧 Windsor | 10,311 | 1997 |
| 69 | [Everllence](https://www.tamtam.ai/c/everllence) (everllence.com)<br>Leading propulsion, decarbonization, and efficiency solutions for shipping, energy, and industry. Reduces hard-to-abate emissions and drives the global energy transition with innovative technologies. | Climate Technology Product Manufacturing | 🇩🇪 Augsburg | 10,107 | 2025 |
| 70 | [Smiths Group plc](https://www.tamtam.ai/c/smiths-group-plc) (smiths.com)<br>A global pioneer in engineering for over 170 years, improving the world by serving millions and creating a safer, more efficient, and better-connected world | Industrial Machinery Manufacturing | 🇬🇧 | 9,866 | 1851 |
| 71 | [SBM Offshore](https://www.tamtam.ai/c/sbm-offshore) (sbmoffshore.com)<br>A global leader in offshore energy solutions, focusing on sustainable and affordable energy production through innovative technology and responsible practices | Oil and Gas | 🇳🇱 Amsterdam | 9,835 | 1959 |
| 72 | [SPIE France](https://www.tamtam.ai/c/spie-france) (spie.fr)<br>Global actor in energy, digital, and industrial transitions, offering concrete solutions for decarbonizing buildings, industries, and territories through various technical services. | IT Services and IT Consulting | 🇫🇷 Cergy-Pontoise | 9,833 |  |
| 73 | [Endesa](https://www.tamtam.ai/c/endesa) (endesa.com)<br>Leaders in electricity and natural gas sector. Providing services to millions of clients. Core business is production, transportation, distribution and commercialization of electric power. | Utilities | 🇪🇸 Madrid | 9,800 | 1944 |
| 74 | [Atkins](https://www.tamtam.ai/c/atkins) (atkinsrealis.com)<br>World-class engineering services and nuclear organization connecting people, data, and technology to transform global infrastructure and energy systems through design and management. | Engineering Services | 🇬🇧 Epsom | 9,798 |  |
| 75 | [Plastic Omnium](https://www.tamtam.ai/c/plastic-omnium) (plasticomnium.com)<br>Provides innovative automotive solutions: exterior systems, lighting, clean energy, and complex modules. Focuses on zero-carbon mobility through hydrogen and electrification. | Motor Vehicle Manufacturing | 🇫🇷 Levallois-Perret | 9,551 |  |
| 76 | [Alliander](https://www.tamtam.ai/c/alliander) (alliander.com)<br>A Dutch energy network company responsible for distributing gas and electricity, promoting sustainable energy solutions, and ensuring equal access to reliable energy | Utilities | 🇳🇱 Arnhem | 9,523 | 2009 |
| 77 | [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 |
| 78 | [Aggreko](https://www.tamtam.ai/c/aggreko) (aggreko.com)<br>Global leader providing temporary power, temperature control, and energy solutions through innovative, modular technology for individuals seeking fulfilling careers in a diverse environment | Utilities | 🇬🇧 Dumbarton | 8,953 | 1962 |
| 79 | [Vallourec](https://www.tamtam.ai/c/vallourec) (vallourec.com)<br>Provides benchmark tubular solutions for energy, oil and gas, industrial applications, hydrogen, CCUS, geothermal, and solar energy markets. | Oil and Gas | 🇫🇷 Meudon | 8,787 | 1899 |
| 80 | [Nexans](https://www.tamtam.ai/c/nexans) (nexans.com)<br>Design, manufacture, and services for cable systems across transmission, grid, connectivity, and industry sectors, focusing on sustainable, decarbonized electricity. | Manufacturing | 🇫🇷 Courbevoie | 8,776 |  |
| 81 | [EDF (UK)](https://www.tamtam.ai/c/edf-uk) (edfenergy.com)<br>Leading sustainable energy transition, building nuclear power, investing in renewables like wind and solar, and electrifying homes and businesses with low-carbon technology. | Utilities | 🇬🇧 London | 8,774 | 2003 |
| 82 | [Johnson Matthey](https://www.tamtam.ai/c/johnson-matthey) (matthey.com)<br>development of sustainable technologies supporting energy, chemicals, and automotive sectors to decarbonise, reduce emissions, and enhance sustainability | Chemical Manufacturing | 🇬🇧 London | 8,592 | 1817 |
| 83 | [Nordex Group](https://www.tamtam.ai/c/nordex-group) (nordex-online.com)<br>A global leader in onshore wind turbine development, manufacturing, and servicing, offering high-yield, cost-efficient solutions for sustainable power generation worldwide | Renewable Energy Equipment Manufacturing | 🇩🇪 Hamburg | 8,463 | 1985 |
| 84 | [VDL Groep](https://www.tamtam.ai/c/vdl-groep) (vdlgroep.com)<br>An international industrial company specializing in developing and producing products, machines, components, and solutions for various sectors with over 15,000 employees worldwide | International Trade and Development | 🇳🇱 Eindhoven | 8,395 | 1953 |
| 85 | [Tereos](https://www.tamtam.ai/c/tereos) (tereos.com)<br>French agricultural cooperative processing beet, sugarcane, cereals, alfalfa; global presence, broad product range, customer support, environmental commitment. | Food and Beverage Manufacturing | 🇫🇷 Moussy-le-Vieux | 8,366 |  |
| 86 | [Réseau de Transport d'Électricité](https://www.tamtam.ai/c/reseau-de-transport-d-electricite) (rte-france.com)<br>Manages France's electricity grid, connecting territories and industries, developing infrastructure for a decarbonized future, ensuring constant balance and supply. | Utilities | 🇫🇷 La Defense Cedex | 8,223 | 2000 |
| 87 | [TenneT](https://www.tamtam.ai/c/tennet) (tennet.eu)<br>Leading European grid operator ensuring secure, reliable electricity supply, driving energy transition, managing over 25,000 km of high-voltage grid in Netherlands and Germany | Utilities | 🇳🇱 Arnhem | 8,058 |  |
| 88 | [German Aerospace Center (DLR)](https://www.tamtam.ai/c/german-aerospace-center-dlr) (dlr.de)<br>A research center in Germany focused on aeronautics, space, energy, and more Developing solutions for global challenges with 10,000 employees | Research Services | 🇩🇪 Koeln / Cologne | 7,780 | 1907 |
| 89 | [Eiffage](https://www.tamtam.ai/c/eiffage) (eiffage.com)<br>Join a close-knit company valuing teamwork, innovation, and individuality to build a human-sized future, welcoming diverse talents to thrive | Construction | 🇫🇷 Velizy-Villacoublay | 7,684 |  |
| 90 | [Moeve](https://www.tamtam.ai/c/moeve) (moeveglobal.com)<br>Production of sustainable energies based on green molecules like green hydrogen and 2G biofuels, plus ultrafast electric mobility solutions. | Oil and Gas | 🇪🇸 Madrid | 7,527 |  |
| 91 | [Webuild](https://www.tamtam.ai/c/webuild) (webuildgroup.com)<br>A global leader in designing and constructing large, complex projects in sustainable mobility, hydropower, water infrastructure, and green buildings worldwide | Construction | 🇮🇹 Rozzano (MI) | 7,514 |  |
| 92 | [ÖBB](https://www.tamtam.ai/c/obb) (holding.oebb.at)<br>With 13 million daily passengers and 1,300 freight trains, ÖBB is a leading Austrian employer with over 42,000 employees and 2,000 apprentices | Rail Transportation | 🇦🇹 Vienna | 7,419 |  |
| 93 | [GRDF](https://www.tamtam.ai/c/grdf) (grdf.fr)<br>Manages Europe's largest gas distribution network, delivering natural and renewable gases to nearly 11 million customers in France, supporting energy transition. | Oil and Gas | 🇫🇷 Saint-Denis | 7,313 | 2008 |
| 94 | [Reitan Retail](https://www.tamtam.ai/c/reitan-retail) (reitanretail.no)<br>A leading retail company in the Nordic and Baltic region operating discount grocery, convenience stores, and sustainable mobility solutions with over 3,800 outlets | Retail | 🇳🇴 Oslo | 7,293 |  |
| 95 | [OPmobility](https://www.tamtam.ai/c/opmobility) (opmobility.com)<br>It is a leader in sustainable mobility, providing diverse solutions including intelligent systems, energy storage, and software development for clients. | Motor Vehicle Manufacturing | 🇫🇷 | 7,217 | 1946 |
| 96 | [Severn Trent](https://www.tamtam.ai/c/severn-trent) (severntrent.com)<br>Provision of clean water and safe wastewater removal for homes, schools, businesses, and hospitals, focusing on community care and quality service. | Utilities | 🇬🇧 Coventry | 7,000 | 1974 |
| 97 | [John Cockerill](https://www.tamtam.ai/c/john-cockerill) (johncockerill.com)<br>Designs, integrates, modernizes, maintains equipment for energy, defense, steelmaking, environment, and industry, focusing on performance, innovation, and global reach. | Industrial Machinery Manufacturing | 🇧🇪 Seraing | 6,989 | 1817 |
| 98 | [Bonatti](https://www.tamtam.ai/c/bonatti) (bonattinternational.com)<br>An international contractor with over 75 years of experience, providing engineering, construction, operation, and maintenance services to the energy industry globally | Oil and Gas | 🇮🇹 Parma | 6,940 | 1946 |
| 99 | [Perenco](https://www.tamtam.ai/c/perenco) (perenco.com)<br>An independent hydrocarbon producer, involved in the entire lifecycle of projects, from exploration to decommissioning, operating globally with a strong team. | Oil and Gas | 🇬🇧 London | 6,910 | 1992 |
| 100 | [OMV](https://www.tamtam.ai/c/omv) (omv.com)<br>A leading sustainable fuels, chemicals, and materials company focusing on circular economy solutions, transitioning to low-carbon businesses to achieve net zero emissions by 2050 | Utilities | 🇦🇹 Vienna | 6,877 | 1956 |

## 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 14, 2026.

## More company lists in Europe

- [The largest companies in Europe](https://www.tamtam.ai/l/largest-companies-in-europe) (213,522)
- [Multinational companies in Europe](https://www.tamtam.ai/l/multinational-companies-in-europe) (42,020)
- [Companies with in-house R&D in Europe](https://www.tamtam.ai/l/r-and-d-companies-in-europe) (20,166)
- [Retail chains in Europe](https://www.tamtam.ai/l/retail-chains-in-europe) (19,258)
- [Manufacturers in Europe](https://www.tamtam.ai/l/manufacturers-in-europe) (18,152)
- [Professional services firms in Europe](https://www.tamtam.ai/l/professional-services-firms-in-europe) (13,697)
- [SaaS companies in Europe](https://www.tamtam.ai/l/saas-companies-in-europe) (13,682)
- [Software Development companies in Europe](https://www.tamtam.ai/l/software-development-companies-in-europe) (12,949)
- [Financial services firms in Europe](https://www.tamtam.ai/l/financial-services-firms-in-europe) (12,940)
- [IT Services and IT Consulting companies in Europe](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-europe) (11,705)
- [IT services companies in Europe](https://www.tamtam.ai/l/it-services-companies-in-europe) (11,376)
- [Hardware manufacturers in Europe](https://www.tamtam.ai/l/hardware-companies-in-europe) (10,563)
- [Family-owned companies in Europe](https://www.tamtam.ai/l/family-owned-companies-in-europe) (9,878)
- [Critical infrastructure operators in Europe](https://www.tamtam.ai/l/critical-infrastructure-operators-in-europe) (9,814)
- [Financial Services companies in Europe](https://www.tamtam.ai/l/financial-services-companies-in-europe) (9,478)
- [Consulting firms in Europe](https://www.tamtam.ai/l/consulting-firms-in-europe) (8,899)
- [Public sector organisations in Europe](https://www.tamtam.ai/l/public-sector-organisations-in-europe) (8,565)
- [Education providers in Europe](https://www.tamtam.ai/l/education-companies-in-europe) (7,925)
- [Companies with a mobile app in Europe](https://www.tamtam.ai/l/companies-with-mobile-app-in-europe) (7,898)
- [Distributors and wholesalers in Europe](https://www.tamtam.ai/l/distributors-and-wholesalers-in-europe) (7,573)
- [Retail companies in Europe](https://www.tamtam.ai/l/retail-companies-in-europe) (6,240)
- [Healthcare providers in Europe](https://www.tamtam.ai/l/healthcare-providers-in-europe) (6,132)
- [E-commerce companies in Europe](https://www.tamtam.ai/l/ecommerce-companies-in-europe) (5,864)
- [Hotel and hospitality groups in Europe](https://www.tamtam.ai/l/hospitality-groups-in-europe) (5,739)

## The same list elsewhere

- [Energy companies in the world](https://www.tamtam.ai/l/energy-companies-in-the-world) (10,501)
- [Energy companies in France](https://www.tamtam.ai/l/energy-companies-france) (1,594)
- [Energy companies in the United Kingdom](https://www.tamtam.ai/l/energy-companies-united-kingdom) (638)
- [Energy companies in Germany](https://www.tamtam.ai/l/energy-companies-germany) (431)
- [Energy companies in Italy](https://www.tamtam.ai/l/energy-companies-italy) (228)
- [Energy companies in Spain](https://www.tamtam.ai/l/energy-companies-spain) (225)
- [Energy companies in the Netherlands](https://www.tamtam.ai/l/energy-companies-netherlands) (199)
- [Energy companies in Switzerland](https://www.tamtam.ai/l/energy-companies-switzerland) (151)
- [Energy companies in Belgium](https://www.tamtam.ai/l/energy-companies-belgium) (123)
- [Energy companies in Norway](https://www.tamtam.ai/l/energy-companies-norway) (107)
- [Energy companies in Denmark](https://www.tamtam.ai/l/energy-companies-denmark) (81)
- [Energy companies in Poland](https://www.tamtam.ai/l/energy-companies-poland) (68)
- [Energy companies in Sweden](https://www.tamtam.ai/l/energy-companies-sweden) (66)
- [Energy companies in Portugal](https://www.tamtam.ai/l/energy-companies-portugal) (52)
- [Energy companies in Ireland](https://www.tamtam.ai/l/energy-companies-ireland) (42)
- [Energy companies in Austria](https://www.tamtam.ai/l/energy-companies-austria) (40)
- [Energy companies in Finland](https://www.tamtam.ai/l/energy-companies-finland) (36)
- [Energy companies in Greece](https://www.tamtam.ai/l/energy-companies-greece) (33)
- [Energy companies in the Czech Republic](https://www.tamtam.ai/l/energy-companies-czech-republic) (30)

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