| # | Company | Employees |
|---|---|---|
| 1 | 93,235 | |
| 2 |
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. |
87,938 |
| 3 |
TotalEnergiestotalenergies.com
Global energy company with 105,000 employees focused on energy transition, safety, ethics, innovation, and career development worldwide. |
86,609 |
| 4 |
Veoliaveolia.com
Global environmental services, building environmental security for public health, industry competitiveness. Cleans pollution, reduces carbon, regenerates resources through water, waste, energy solutions. |
49,296 |
| 5 | 45,706 | |
| 6 |
Air Liquideairliquide.com
A global leader in gases, technologies, and services for industry and health, focusing on innovation and sustainability for a better future |
40,100 |
| 7 |
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. |
25,848 |
| 8 | 24,479 | |
| 9 |
Technip Energiesten.com
Leading energy engineering & technology company focused on LNG, hydrogen, ethylene, sustainable chemistry, and CO2 management Committed to accelerating the energy transition globally |
18,645 |
| 10 |
Eiffage Énergie Systèmeseiffageenergiesystemes.com
Designs, builds, operates, and maintains energy systems, offering innovative solutions in electrical, industrial, climatic, and energy engineering. |
15,518 |
| 11 |
EQUANSequans.com
A global leader in multi-technical services, providing customized solutions for building improvement and supporting sustainable development with a highly qualified team |
15,419 |
| 12 | 14,557 | |
| 13 |
Framatomeframatome.com
Designs, services and installs components, fuel, and instrumentation and control systems for global nuclear power plants while providing digital and technical expertise. |
14,188 |
| 14 |
Hutchinsonhutchinson.com
Designs, produces customized materials, connected solutions for global customers: land, air, sea. Leaders in vibration control, fluid management, sealing technologies. |
13,625 |
| 15 | 12,741 | |
| 16 |
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. |
12,605 |
| 17 |
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. |
12,252 |
| 18 |
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. |
11,029 |
| 19 |
SPIE Francespie.fr
Global actor in energy, digital, and industrial transitions, offering concrete solutions for decarbonizing buildings, industries, and territories through various technical services. |
9,833 |
| 20 |
Plastic Omniumplasticomnium.com
Provides innovative automotive solutions: exterior systems, lighting, clean energy, and complex modules. Focuses on zero-carbon mobility through hydrogen and electrification. |
9,551 |
| 21 |
Vallourecvallourec.com
Provides benchmark tubular solutions for energy, oil and gas, industrial applications, hydrogen, CCUS, geothermal, and solar energy markets. |
8,787 |
| 22 |
Nexansnexans.com
Design, manufacture, and services for cable systems across transmission, grid, connectivity, and industry sectors, focusing on sustainable, decarbonized electricity. |
8,776 |
| 23 |
Tereostereos.com
French agricultural cooperative processing beet, sugarcane, cereals, alfalfa; global presence, broad product range, customer support, environmental commitment. |
8,366 |
| 24 |
Réseau de Transport d'Électricitérte-france.com
Manages France's electricity grid, connecting territories and industries, developing infrastructure for a decarbonized future, ensuring constant balance and supply. |
8,223 |
| 25 |
Eiffageeiffage.com
Join a close-knit company valuing teamwork, innovation, and individuality to build a human-sized future, welcoming diverse talents to thrive |
7,684 |
| 26 | 7,313 | |
| 27 |
OPmobilityopmobility.com
It is a leader in sustainable mobility, providing diverse solutions including intelligent systems, energy storage, and software development for clients. |
7,217 |
| 28 |
Veolia | Franceveolia.fr
Provides specialized services for water management, waste treatment, and energy recovery to help cities and industries preserve, access, and renew essential resources. |
6,110 |
| 29 |
Bouygues Energies & Servicesbouygues-es.fr
Bouygues Energies & Services is a key player in energy and digital transition, focusing on sustainable solutions and workforce development |
5,960 |
| 30 |
BOURBONbourbonoffshore.com
Provides innovative, sustainable maritime services for oil, gas, and wind energy sectors with a modern fleet and 4,600 employees in 32 countries. |
5,069 |
| 31 |
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. |
4,994 |
| 32 |
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. |
4,934 |
| 33 |
Groupe Atlanticgroupe-atlantic.fr
Designing, manufacturing, and marketing heating, air conditioning, ventilation, and domestic hot water solutions. Innovating for durable, efficient, connected equipment and well-being. |
4,667 |
| 34 | 4,211 | |
| 35 |
SPIE Global Services Energyspiegse.com
Operating across energy production infrastructure value chain, from design to maintenance, they provide tailored solutions for oil, gas, and renewable energy industries. |
4,205 |
| 36 | 3,940 | |
| 37 |
FAYAT Groupfayat.com
Established in 1957, this French company is a leading independent player in construction and industry, offering innovative and sustainable solutions globally |
3,630 |
| 38 |
EDF power solutionsedf-powersolutions.com
Develops, builds, operates low-carbon power plants, flexibility, decarbonisation solutions, and transmission assets, driving electrical systems' global performance. |
3,201 |
| 39 |
Socomec Groupsocomec.com
Established in 1922, this independent industrial group specializes in ensuring the availability, control, and safety of low voltage electrical networks worldwide, generating a turnover of 725 M€ in 2022 |
3,166 |
| 40 |
Bollorébollore.com
An international group specializing in transportation & logistics, communications, media, and electricity storage solutions, with a strong presence globally |
3,033 |
| 41 | 2,986 | |
| 42 |
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. |
2,978 |
| 43 |
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 |
2,953 |
| 44 |
Mersenmersen.com
Global expert in electrical specialties, advanced materials for high-tech industries. Custom-built solutions, key products for new technological challenges shaping tomorrow’s world. |
2,920 |
| 45 |
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. |
2,761 |
| 46 |
NaTrannatrangroupe.com
Second largest European gas transport operator focusing on energy transition, carbon neutrality, and innovative infrastructure for biomethane, hydrogen, and CO2. |
2,700 |
| 47 |
Chantiers de l'Atlantiquechantiers-atlantique.com
Marine construction company, building complex ships and marine installations, including passenger ships and substations. Global leader in design, manufacturing, and commissioning of innovative, environmentally friendly vessels. |
2,472 |
| 48 |
SPIE Citynetworksspie.fr
Design, implementation, operation, and maintenance of energy and digital networks, offering smart city services for local authorities and businesses. |
2,367 |
| 49 |
Arabelle Solutionsarabellesolutions.com
Provides nuclear turbine island technology, services for power plants, including steam turbines, generators, pumps, heat-exchangers, and cybersecurity solutions worldwide. |
2,335 |
| 50 | 2,281 | |
| 51 |
Orano DSorano.group
Provides expertise and solutions to nuclear operators in industrial logistics, specialized maintenance, radiological safety, decommissioning, and waste management. |
2,118 |
| 52 |
Getlinkgetlinkgroup.com
Manages Channel Tunnel, shuttle services, rail freight, and electricity interconnection, safely transporting passengers, vehicles, and goods between the UK and France. |
2,108 |
| 53 |
Onet Technologiesonet.fr
Expertise in nuclear engineering and services for reactor maintenance, dismantling, decommissioning, waste management, and training within the nuclear industry lifecycle. |
2,071 |
| 54 |
Sicame Groupsicame-group.com
World leader in production, sales of accessories and services for electrical energy transmission and distribution, safety equipment, and industrial applications. |
1,999 |
| 55 |
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 |
1,967 |
| 56 |
Edvanceedvance.fr
Designs and implements nuclear islands and control commands for nuclear reactors under construction, domestically and internationally. |
1,943 |
| 57 |
Alstom Gridgevernova.com
A provider of innovative solutions for the power grid industry, specializing in advanced technology and services for electrical infrastructure |
1,895 |
| 58 |
Reelreelinternational.com
Designs, produces, and maintains complex lifting and handling systems and solutions for highly technical installations in diverse markets like aerospace, nuclear, and energy. |
1,882 |
| 59 |
Omexomomexom.com
Specializing in power grid solutions, Omexom helps clients navigate the energy transition by integrating renewable energy, storage solutions, and smart infrastructures Independently selecting optimal technologies |
1,825 |
| 60 |
SPIE Industriespie.fr
Support industrial clients with digital transformation and energy transition through design, implementation, and maintenance of energy-efficient installations. |
1,781 |
| 61 | 1,740 | |
| 62 |
Nidec Leroy-Somernidec.com
Manufacturing motors, variable drives, and power electronics for industrial and commercial applications, including customized solutions for specific client needs. |
1,730 |
| 63 |
ITER Organizationiter.org
International collaboration building the world’s largest fusion device to demonstrate fusion energy viability and support future power plant development. |
1,654 |
| 64 |
ACC - Automotive Cells Companyacc-emotion.com
Develops and manufactures sustainable, high-capacity batteries for cleaner transport through R&D centers and gigafactories across Europe with backing from major automotive partners. |
1,653 |
| 65 |
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 |
1,574 |
| 66 |
ENGIE - International Supply & Energy Managementengie-sem.com
Supports global businesses in decarbonization with reliable, flexible, and affordable energy solutions, managing supply, risks, and sustainable services globally. |
1,554 |
| 67 |
TSG Grouptsg-solutions.com
Design, construction, and maintenance of energy distribution infrastructures including electric vehicle charging, hydrogen, biofuels, and payment systems for mobility. |
1,513 |
| 68 |
GRTgaznatrangroupe.com
Builds, maintains, and develops 85% of France's high-pressure natural gas transmission network, ensuring safe, reliable, and cost-effective gas delivery to industrial sites and public distribution. |
1,512 |
| 69 |
groupe DUBREUILgroupedubreuil.com
French family group involved in distribution, aviation, and hospitality, operating diverse businesses across France and overseas for a century. |
1,475 |
| 70 |
TechnicAtometechnicatome.com
Specialized in compact nuclear reactor design, construction, and maintenance for various sectors including naval propulsion, research, medicine, and energy |
1,467 |
| 71 |
Exide Groupexidegroup.com
Designs, manufactures, and markets advanced battery technologies for automotive, industrial, and specialized applications, focusing on efficient energy solutions and customer productivity. |
1,440 |
| 72 |
AREVA T&Dalstom.com
Offers solutions for energy transmission and distribution, building high- and medium-voltage substations, and developing technologies for power grid management worldwide, ensuring safe, reliable, and efficient power distribution. |
1,399 |
| 73 |
Voltaliavoltalia.com
Produces, sells electricity from wind, solar, hydro, biomass, storage facilities. Supports clients from design to operation and maintenance. Offers green electricity, energy efficiency, local production. |
1,375 |
| 74 |
SPIE Nucléairespie.com
Designing, building, modifying, maintaining, and dismantling nuclear facilities with electrical, mechanical, climate, and nuclear engineering for low-carbon energy. |
1,267 |
| 75 |
CNR (Compagnie Nationale du Rhône)tm.fr
French leading producer of 100% renewable electricity, managing the Rhône river for hydroelectricity, navigation, irrigation, and agricultural use, supporting local development and innovation |
1,256 |
| 76 |
PROXISERVEproxiserve.fr
Provides innovative energy solutions for homes and buildings, specializing in heating, water, and electric vehicle charging, serving condominiums, landlords, and private customers. |
1,256 |
| 77 |
Dalkia Froid Solutionsdalkiafroidsolutions.com
Provides energy solutions for industrial and tertiary processes, supporting clients in their energy transition with low environmental impact fluid technologies for industry, food retail, and tertiary sectors. |
1,234 |
| 78 |
Entrepose Groupentrepose-contracting.com
Design, construction, and operation of onshore, offshore, and underground infrastructures for oil, gas, geothermal, and energy storage projects worldwide. |
1,153 |
| 79 | 1,136 | |
| 80 |
EDF solutions solairesedf-solutions-solaires.com
Offers turnkey solar solutions for individuals, professionals, and communities, supporting energy transition and enabling self-production of sustainable, local, and decarbonized energy. |
1,132 |
| 81 |
Verkorverkor.com
Produces low-carbon batteries in France and Europe for electric vehicles and stationary storage, with a Gigafactory operational by 2025. |
997 |
| 82 |
Cristal Unioncristal-union.fr
Leading European producer of sugar and alcohol, operating mainly in France with significant international sales and cooperative organizational model. |
996 |
| 83 |
Akwa Groupakwagroup.com
Leading Moroccan conglomerate engaged in energy distribution, real estate development, tourism, and automotive services, focused on sustainable growth and social responsibility. |
986 |
| 84 | 964 | |
| 85 | 949 | |
| 86 |
Sercelsercel.com
Leading provider of high-standard subsurface measurement and data solutions for natural resources, infrastructure monitoring, energy transition, and defense sectors since 1956. |
942 |
| 87 | 920 | |
| 88 |
LD Armateurs (LDA)lda.fr
Specializes in custom industrial maritime solutions, offering ship design, management, and operations in transport, logistics, submarine cables, and renewable energy. |
846 |
| 89 |
Storengy - ENGIEstorengy.com
A global leader in underground natural gas storage, offering innovative solutions and renewable gases such as biomethane and hydrogen across Europe |
841 |
| 90 |
Séché Environnementgroupe-seche.com
Séché Environnement is a leading independent environmental services operator focusing on circular economy, waste management, and global pollution solutions with sustainable development values |
831 |
| 91 |
UEMuem-metz.fr
A long-standing energy partner offering diverse services including electricity, gas, renewables, urban heating, public lighting, and utility software solutions |
772 |
| 92 |
Cegelec CEMcegelec-cem.fr
Designs, builds, and integrates equipment for new nuclear constructions, renovations, decommissioning, and high-stakes mechanical and electromechanical engineering projects in nuclear environments. |
770 |
| 93 |
SATELEC - FAYAT ENERGIE SERVICESsatelec.fayat.com
Specializing in new construction, renovation, and maintenance of electrical installations and energy networks across France, with expertise in smart city infrastructure, industrial processes, and energy efficiency |
766 |
| 94 |
CAHORSgroupe-cahors.com
Provides global solutions and equipment for medium and low voltage distribution networks, fluids, and communication networks worldwide. |
750 |
| 95 |
SERIMAXserimax.com
Global leader in pipeline welding solutions, offering high quality automatic and manual welding services on land and sea, in tough conditions Specializes in innovative equipment |
748 |
| 96 |
GreenYellowgreenyellow.com
A major player in energy transition, GreenYellow specializes in decentralized PV production, energy efficiency, and electric mobility services for clients worldwide |
747 |
| 97 |
ARGEDISargedis.com
Manages over 180 service stations across France, offering fuel, breaks, coffee, dining, and retail with 3000 employees. |
730 |
| 98 | 729 | |
| 99 | 724 | |
| 100 | 717 |
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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 24, 2026.
More company lists in France
- The largest companies in France 75,805
- Retail chains in France 6,992
- IT services companies in France 4,433
- IT Services and IT Consulting companies in France 4,335
- Manufacturers in France 4,195
- Software Development companies in France 3,751
- Public sector organisations in France 3,653
- Family-owned companies in France 3,479
- Consulting firms in France 3,031
- Financial services firms in France 2,810
- Distributors and wholesalers in France 2,788
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- Advertising Services companies in France 2,080
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- Real Estate companies in France 1,848
- Events Services companies in France 1,770
- Higher Education companies in France 1,718
- Food and Beverage Manufacturing companies in France 1,704
- Accounting firms in France 1,687
The same list elsewhere in France
- Energy companies in Île-de-France 426
- Energy companies in Auvergne-Rhône-Alpes 192
- Energy companies in Nouvelle-Aquitaine 160
- Energy companies in Occitanie 104
- Energy companies in Provence-Alpes-Côte d'Azur 102
- Energy companies in Grand Est 96
- Energy companies in Pays de la Loire 62
- Energy companies in Hauts-de-France 56
- Energy companies in Brittany 40
- Energy companies in Bourgogne-Franche-Comté 34
- Energy companies in Normandy 30
- Energy companies in Paris 162
- Energy companies in Lyon 30
- Energy companies in Courbevoie 28
- Energy companies in Toulouse 25