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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).

🇫🇷 Hauts-de-Seine30 companiesUpdated Nov 12, 2026

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.

#CompanyIndustryHeadquarters EmployeesFounded
1
Schneider Electricse.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 🇫🇷 Rueil-Malmaison 87,938 1836
2
ENGIEengie.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 🇫🇷 La Garenne-Colombes 45,706 n/a
3
VINCI Energiesvinci-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 🇫🇷 Nanterre 25,848 n/a
4
Enedisenedis.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 🇫🇷 Puteaux 24,479 n/a
5
EQUANSequans.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 🇫🇷 Courbevoie 15,419 n/a
6
Framatomeframatome.com

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
7
Oranoorano.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 🇫🇷 Châtillon 12,605 2018
8
ENGIE Solutions Franceengie-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 🇫🇷 La Garenne-Colombes 12,252 n/a
9
Equans Franceequans.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 🇫🇷 Courbevoie 11,029 2021
10
Plastic Omniumplasticomnium.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 🇫🇷 Levallois-Perret 9,551 n/a
11
Vallourecvallourec.com

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
12
Nexansnexans.com

Design, manufacture, and services for cable systems across transmission, grid, connectivity, and industry sectors, focusing on sustainable, decarbonized electricity.

Manufacturing 🇫🇷 Courbevoie 8,776 n/a
13
GE Renewable Energyge.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 🇫🇷 Boulogne-Billancourt 4,994 n/a
14
GE Grid Solutionsgevernova.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 🇫🇷 Boulogne-Billancourt 4,934 1892
15
IDEXidex.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 🇫🇷 Boulogne-Billancourt 3,940 1963

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16
Bollorébollore.com

An international group specializing in transportation & logistics, communications, media, and electricity storage solutions, with a strong presence globally

Holding Companies 🇫🇷 Puteaux 3,033 n/a
17
Saftsaft.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 🇫🇷 Levallois-Perret 2,986 1918
18
ALTRAD ENDELlinktr.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 🇫🇷 Colombes 2,978 1835
19
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 🇫🇷 Nanterre 2,953 n/a
20
CFAOcfaogroup.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 🇫🇷 Boulogne-Billancourt 2,761 1887
21
NaTrannatrangroupe.com

Second largest European gas transport operator focusing on energy transition, carbon neutrality, and innovative infrastructure for biomethane, hydrogen, and CO2.

Utilities 🇫🇷 Bois-Colombes 2,700 n/a
22
Arabelle Solutionsarabellesolutions.com

Provides nuclear turbine island technology, services for power plants, including steam turbines, generators, pumps, heat-exchangers, and cybersecurity solutions worldwide.

Electric Power Generation 🇫🇷 Nanterre 2,335 2024
23
NUVIAnuvia.com

International company provides engineering, products, and support services for highly regulated industrial sites, including nuclear, defense, health, and environment sectors.

Construction 🇫🇷 Rueil-Malmaison 2,281 2007
24
GCC, l’ETI de préférencegcc-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 🇫🇷 Levallois-Perret 1,967 1906
25
Edvanceedvance.fr

Designs and implements nuclear islands and control commands for nuclear reactors under construction, domestically and internationally.

Engineering Services 🇫🇷 Montrouge 1,943 2017
26
Axensaxens.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 🇫🇷 Rueil-Malmaison 1,740 2001
27
Eni Energies et Servicesfr.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 🇫🇷 Levallois-Perret 1,574 n/a
28
TSG Grouptsg-solutions.com

Design, construction, and maintenance of energy distribution infrastructures including electric vehicle charging, hydrogen, biofuels, and payment systems for mobility.

Facilities Services 🇫🇷 Le Plessis-Robinson 1,513 n/a
29
PROXISERVEproxiserve.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 🇫🇷 Levallois-Perret 1,256 n/a
30
Entrepose Groupentrepose-contracting.com

Design, construction, and operation of onshore, offshore, and underground infrastructures for oil, gas, geothermal, and energy storage projects worldwide.

Oil and Gas 🇫🇷 Colombes 1,153 1935

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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 Nov 12, 2026.

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