# List of energy companies in the Hauts-de-Seine department
Tamtam tracks 144 energy companies headquartered in the Hauts-de-Seine department. This list ranks the 30 largest by number of employees on LinkedIn, led by Schneider Electric, ENGIE and VINCI Energies. Their median headcount is 3,940. Half of them were founded in 1958 or later. The most common headquarters are Levallois-Perret (5), Boulogne-Billancourt (4) and Courbevoie (4).
These energy companies in Hauts-de-Seine primarily represent established large groups and mid-sized firms operating in diverse sectors such as electricity distribution, renewable energy, nuclear power, and multi-technical services. Key players include Schneider Electric, a global leader in energy technology, and ENGIE, which operates across the energy value chain from production to supply. VINCI Energies focuses on environmental transition with multi-technical solutions, while Enedis manages France's public electricity distribution network.
The data shows a strong concentration of headquarters in the eastern part of the department, particularly in Courbevoie, Boulogne-Billancourt, and La Garenne-Colombes. Companies like Framatome specialize in nuclear power plant components, and Orano provides expertise in nuclear materials. This reflects a mix of traditional energy infrastructure management and forward-looking solutions for sustainability and decarbonization.
馃嚝馃嚪 Hauts-de-Seine 路 30 companies 路 Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Schneider Electric](https://www.tamtam.ai/c/schneider-electric) (se.com)
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 | 馃嚝馃嚪 Rueil-Malmaison | 87,938 | 1836 |
| 2 | [ENGIE](https://www.tamtam.ai/c/engie) (engie.com)
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 | 馃嚝馃嚪 La Garenne-Colombes | 45,706 | |
| 3 | [VINCI Energies](https://www.tamtam.ai/c/vinci-energies) (vinci-energies.com)
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 | 馃嚝馃嚪 Nanterre | 25,848 | |
| 4 | [Enedis](https://www.tamtam.ai/c/enedis) (enedis.fr)
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 | 馃嚝馃嚪 Puteaux | 24,479 | |
| 5 | [EQUANS](https://www.tamtam.ai/c/equans) (equans.com)
A global leader in multi-technical services, providing customized solutions for building improvement and supporting sustainable development with a highly qualified team | Environmental Services | 馃嚝馃嚪 Courbevoie | 15,419 | |
| 6 | [Framatome](https://www.tamtam.ai/c/framatome) (framatome.com)
Designs, services and installs components, fuel, and instrumentation and control systems for global nuclear power plants while providing digital and technical expertise. | Utilities | 馃嚝馃嚪 Courbevoie | 14,188 | 1958 |
| 7 | [Orano](https://www.tamtam.ai/c/orano) (orano.group)
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 | 馃嚝馃嚪 Ch芒tillon | 12,605 | 2018 |
| 8 | [ENGIE Solutions France](https://www.tamtam.ai/c/engie-solutions-france) (engie-solutions.com)
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 | 馃嚝馃嚪 La Garenne-Colombes | 12,252 | |
| 9 | [Equans France](https://www.tamtam.ai/c/equans-france) (equans.fr)
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 | 馃嚝馃嚪 Courbevoie | 11,029 | 2021 |
| 10 | [Plastic Omnium](https://www.tamtam.ai/c/plastic-omnium) (plasticomnium.com)
Provides innovative automotive solutions: exterior systems, lighting, clean energy, and complex modules. Focuses on zero-carbon mobility through hydrogen and electrification. | Motor Vehicle Manufacturing | 馃嚝馃嚪 Levallois-Perret | 9,551 | |
| 11 | [Vallourec](https://www.tamtam.ai/c/vallourec) (vallourec.com)
Provides benchmark tubular solutions for energy, oil and gas, industrial applications, hydrogen, CCUS, geothermal, and solar energy markets. | Oil and Gas | 馃嚝馃嚪 Meudon | 8,787 | 1899 |
| 12 | [Nexans](https://www.tamtam.ai/c/nexans) (nexans.com)
Design, manufacture, and services for cable systems across transmission, grid, connectivity, and industry sectors, focusing on sustainable, decarbonized electricity. | Manufacturing | 馃嚝馃嚪 Courbevoie | 8,776 | |
| 13 | [GE Renewable Energy](https://www.tamtam.ai/c/ge-renewable-energy) (ge.com)
Engineers energy products and digital services using wind, solar, and hydro resources for global customers, delivering affordable, reliable, and sustainable power. | Renewable Energy Equipment Manufacturing | 馃嚝馃嚪 Boulogne-Billancourt | 4,994 | |
| 14 | [GE Grid Solutions](https://www.tamtam.ai/c/ge-grid-solutions) (gevernova.com)
Provides utilities and industries with equipment, systems, services for reliable power delivery from generation to consumers, focusing on renewable integration and energy transition acceleration. | Electric Power Transmission, Control, and Distribution | 馃嚝馃嚪 Boulogne-Billancourt | 4,934 | 1892 |
| 15 | [IDEX](https://www.tamtam.ai/c/idex) (idex.fr)
Develops, designs, finances, builds, and operates local energy and carbon-free infrastructures for heat and electricity supply to buildings, cities, and industry. | Renewable Energy Power Generation | 馃嚝馃嚪 Boulogne-Billancourt | 3,940 | 1963 |
| 16 | [Bollor茅](https://www.tamtam.ai/c/bollore) (bollore.com)
An international group specializing in transportation & logistics, communications, media, and electricity storage solutions, with a strong presence globally | Holding Companies | 馃嚝馃嚪 Puteaux | 3,033 | |
| 17 | [Saft](https://www.tamtam.ai/c/saft) (saft.com)
Specializing in advanced technology battery solutions, this company designs, develops, produces, and services longer-lasting batteries and systems for various industries worldwide | Appliances, Electrical, and Electronics Manufacturing | 馃嚝馃嚪 Levallois-Perret | 2,986 | 1918 |
| 18 | [ALTRAD ENDEL](https://www.tamtam.ai/c/altrad-endel) (linktr.ee)
Provides industrial solutions, from design to maintenance, for the energy sector, including nuclear, thermal, petrochemical, and steel industries, with expertise in piping, welding, and mechanics. | Primary Metal Manufacturing | 馃嚝馃嚪 Colombes | 2,978 | 1835 |
| 19 | [VINCI Energies en France](https://www.tamtam.ai/c/vinci-energies-en-france)
Accelerating environmental transition in France by focusing on energy and digital transformations for factories, buildings, cities, and energy/transport infrastructure with innovative solutions | Environmental Services | 馃嚝馃嚪 Nanterre | 2,953 | |
| 20 | [CFAO](https://www.tamtam.ai/c/cfao) (cfaogroup.com)
Contributes to growth and industrialisation in Africa, providing mobility, healthcare, consumer goods, infrastructure and energy solutions to the continent's emerging middle class. | International Trade and Development | 馃嚝馃嚪 Boulogne-Billancourt | 2,761 | 1887 |
| 21 | [NaTran](https://www.tamtam.ai/c/natran) (natrangroupe.com)
Second largest European gas transport operator focusing on energy transition, carbon neutrality, and innovative infrastructure for biomethane, hydrogen, and CO2. | Utilities | 馃嚝馃嚪 Bois-Colombes | 2,700 | |
| 22 | [Arabelle Solutions](https://www.tamtam.ai/c/arabelle-solutions) (arabellesolutions.com)
Provides nuclear turbine island technology, services for power plants, including steam turbines, generators, pumps, heat-exchangers, and cybersecurity solutions worldwide. | Electric Power Generation | 馃嚝馃嚪 Nanterre | 2,335 | 2024 |
| 23 | [NUVIA](https://www.tamtam.ai/c/nuvia) (nuvia.com)
International company provides engineering, products, and support services for highly regulated industrial sites, including nuclear, defense, health, and environment sectors. | Construction | 馃嚝馃嚪 Rueil-Malmaison | 2,281 | 2007 |
| 24 | [GCC, l鈥橢TI de pr茅f茅rence](https://www.tamtam.ai/c/gcc-l-eti-de-preference) (gcc-groupe.com)
A leading independent group in the construction industry, offering sustainable solutions, promoting personal growth and entrepreneurship, and contributing to a lasting future | Construction | 馃嚝馃嚪 Levallois-Perret | 1,967 | 1906 |
| 25 | [Edvance](https://www.tamtam.ai/c/edvance) (edvance.fr)
Designs and implements nuclear islands and control commands for nuclear reactors under construction, domestically and internationally. | Engineering Services | 馃嚝馃嚪 Montrouge | 1,943 | 2017 |
| 26 | [Axens](https://www.tamtam.ai/c/axens-rueil-malmaison) (axens.net)
Provider of solutions for converting oil, biomass, and plastics into cleaner fuels and petrochemical intermediates, natural gas treatment, hydrogen purification, water treatment, and carbon capture | Oil and Gas | 馃嚝馃嚪 Rueil-Malmaison | 1,740 | 2001 |
| 27 | [Eni Energies et Services](https://www.tamtam.ai/c/eni-energies-et-services) (fr.eni.com)
A leading energy provider in France offering electricity, natural gas, and energy solutions to help consumers manage their energy consumption efficiently | Oil and Gas | 馃嚝馃嚪 Levallois-Perret | 1,574 | |
| 28 | [TSG Group](https://www.tamtam.ai/c/tsg-group) (tsg-solutions.com)
Design, construction, and maintenance of energy distribution infrastructures including electric vehicle charging, hydrogen, biofuels, and payment systems for mobility. | Facilities Services | 馃嚝馃嚪 Le Plessis-Robinson | 1,513 | |
| 29 | [PROXISERVE](https://www.tamtam.ai/c/proxiserve) (proxiserve.fr)
Provides innovative energy solutions for homes and buildings, specializing in heating, water, and electric vehicle charging, serving condominiums, landlords, and private customers. | Environmental Services | 馃嚝馃嚪 Levallois-Perret | 1,256 | |
| 30 | [Entrepose Group](https://www.tamtam.ai/c/entrepose-group) (entrepose-contracting.com)
Design, construction, and operation of onshore, offshore, and underground infrastructures for oil, gas, geothermal, and energy storage projects worldwide. | Oil and Gas | 馃嚝馃嚪 Colombes | 1,153 | 1935 |
## 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 the Hauts-de-Seine department
- [The largest companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/largest-companies-hauts-de-seine) (5,160)
- [Multinational companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/multinational-companies-hauts-de-seine) (1,231)
- [IT services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-companies-hauts-de-seine) (737)
- [IT Services and IT Consulting companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-hauts-de-seine) (706)
- [Professional services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/professional-services-firms-hauts-de-seine) (629)
- [Consulting firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/consulting-firms-hauts-de-seine) (563)
- [Companies with in-house R&D in the Hauts-de-Seine department](https://www.tamtam.ai/l/r-and-d-companies-hauts-de-seine) (510)
- [SaaS companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/saas-companies-hauts-de-seine) (389)
- [Business Consulting and Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/business-consulting-and-services-companies-hauts-de-seine) (304)
- [Software Development companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/software-development-companies-hauts-de-seine) (301)
- [Retail chains in the Hauts-de-Seine department](https://www.tamtam.ai/l/retail-chains-hauts-de-seine) (292)
- [Manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/manufacturers-hauts-de-seine) (285)
- [Advertising Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/advertising-services-companies-hauts-de-seine) (281)
- [Marketing and communications agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/marketing-agencies-hauts-de-seine) (235)
- [Subscription businesses in the Hauts-de-Seine department](https://www.tamtam.ai/l/subscription-businesses-hauts-de-seine) (228)
- [Hardware manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/hardware-companies-hauts-de-seine) (199)
- [Financial services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/financial-services-firms-hauts-de-seine) (198)
- [Companies with a mobile app in the Hauts-de-Seine department](https://www.tamtam.ai/l/companies-with-mobile-app-hauts-de-seine) (189)
- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
- [AI companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/ai-companies-hauts-de-seine) (159)
- [Education providers in the Hauts-de-Seine department](https://www.tamtam.ai/l/education-companies-hauts-de-seine) (159)
- [Cybersecurity companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/cybersecurity-companies-hauts-de-seine) (154)
- [Distributors and wholesalers in the Hauts-de-Seine department](https://www.tamtam.ai/l/distributors-and-wholesalers-hauts-de-seine) (154)
- [Recruitment and staffing agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/recruitment-agencies-hauts-de-seine) (152)
## The same list elsewhere in France
- [Energy companies in France](https://www.tamtam.ai/l/energy-companies-france) (1,594)
- [Energy companies in 脦le-de-France](https://www.tamtam.ai/l/energy-companies-ile-de-france) (475)
- [Energy companies in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/energy-companies-auvergne-rhone-alpes) (236)
- [Energy companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/energy-companies-nouvelle-aquitaine) (173)
- [Energy companies in Occitanie](https://www.tamtam.ai/l/energy-companies-occitanie) (128)
- [Energy companies in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/energy-companies-provence-alpes-cote-dazur) (124)
- [Energy companies in Grand Est](https://www.tamtam.ai/l/energy-companies-grand-est) (115)
- [Energy companies in the Rh么ne department](https://www.tamtam.ai/l/energy-companies-rhone) (104)
- [Energy companies in Hauts-de-France](https://www.tamtam.ai/l/energy-companies-hauts-de-france) (74)
- [Energy companies in Pays de la Loire](https://www.tamtam.ai/l/energy-companies-pays-de-la-loire) (66)
- [Energy companies in the Gironde department](https://www.tamtam.ai/l/energy-companies-gironde) (61)
- [Energy companies in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/energy-companies-bouches-du-rhone) (58)
- [Energy companies in Brittany](https://www.tamtam.ai/l/energy-companies-brittany) (56)
- [Energy companies in the Haute-Garonne department](https://www.tamtam.ai/l/energy-companies-haute-garonne) (48)
- [Energy companies in the Nord department](https://www.tamtam.ai/l/energy-companies-nord) (42)
- [Energy companies in the Is猫re department](https://www.tamtam.ai/l/energy-companies-isere) (41)
- [Energy companies in the Loire-Atlantique department](https://www.tamtam.ai/l/energy-companies-loire-atlantique) (40)
- [Energy companies in Bourgogne-Franche-Comt茅](https://www.tamtam.ai/l/energy-companies-bourgogne-franche-comte) (38)
- [Energy companies in the H茅rault department](https://www.tamtam.ai/l/energy-companies-herault) (38)
- [Energy companies in Normandy](https://www.tamtam.ai/l/energy-companies-normandy) (38)
- [Energy companies in the Bas-Rhin department](https://www.tamtam.ai/l/energy-companies-bas-rhin) (33)
- [Energy companies in Paris](https://www.tamtam.ai/l/energy-companies-paris) (187)
- [Energy companies in Lyon](https://www.tamtam.ai/l/energy-companies-lyon) (34)
- [Energy companies in Toulouse](https://www.tamtam.ai/l/energy-companies-toulouse) (33)
## 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-hauts-de-seine