# Publicly traded companies headquartered in the Hauts-de-Seine department
Tamtam tracks 79 publicly traded companies headquartered in the Hauts-de-Seine department. This list ranks the 30 largest by number of employees on LinkedIn, led by Orange, Sodexo and Schneider Electric. Their median headcount is 9,551. The most common headquarters are Issy-les-Moulineaux (5), Puteaux (5) and Boulogne-Billancourt (4).
This selection of publicly traded companies in Hauts-de-Seine primarily features large corporations across diverse sectors. Key players include Orange, a global telecommunications operator; Sodexo, specializing in food and facilities management; Schneider Electric, a leader in energy technology and automation; and Groupe CrΓ©dit Agricole, a major European retail bank. Other notable firms are Thales, focused on defense and cybersecurity, and ENGIE, active in renewable energy.
The companies are predominantly well-established, with several founded in the 19th or early 20th century, such as Schneider Electric (1836) and ELIS (1883). There is a significant concentration of headquarters in Issy-les-Moulineaux, home to Orange, Sodexo, and CANAL+ Group, indicating a hub for large service and media organizations.
π«π· Hauts-de-Seine Β· 30 companies Β· Updated Nov 13, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Orange](https://www.tamtam.ai/c/orange-issy-les-moulineaux) (orange.com)
A leading global telecommunications operator offering services to millions of customers and multinational companies across 26 countries | Telecommunications | π«π· Issy-les-Moulineaux | 146,935 | |
| 2 | [Sodexo](https://www.tamtam.ai/c/sodexo) (sodexo.com)
Global leader in sustainable food and valued experiences, offering food and facilities management services, employee benefit solutions, and promoting social responsibility Serving millions daily | Facilities Services | π«π· Issy-les-Moulineaux | 100,222 | 1966 |
| 3 | [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 | π«π· Rueil-Malmaison | 87,938 | 1836 |
| 4 | [Groupe CrΓ©dit Agricole](https://www.tamtam.ai/c/groupe-credit-agricole) (credit-agricole.com)
Leading European retail bank offering comprehensive financial services including loans, insurance, asset management, corporate banking, and customer-focused solutions. | Banking | π«π· Montrouge | 76,287 | |
| 5 | [Thales](https://www.tamtam.ai/c/thales) (thalesgroup.com)
Multinational specializing in cybersecurity, defense, aerospace, digital identity, and secure communications for governments and industries. | Defense and Space Manufacturing | π«π· Meudon | 65,031 | |
| 6 | [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 | π«π· La Garenne-Colombes | 45,706 | |
| 7 | [ALTEN](https://www.tamtam.ai/c/alten) (alten.com)
Provides engineering and IT services, supporting businesses in technological and sustainable transformation across various industries with high-level consultant-engineers. | Engineering Services | π«π· Boulogne-Billancourt | 38,710 | 1988 |
| 8 | [Saint-Gobain](https://www.tamtam.ai/c/saint-gobain) (saint-gobain.com)
Designs, manufactures, distributes materials, services for residential, non-residential, infrastructure markets; provides sustainable, performing, well-being solutions. | Wholesale Building Materials | π«π· Courbevoie | 36,697 | |
| 9 | [ELIS](https://www.tamtam.ai/c/elis-puteaux) (elis.com)
A global provider of circular services for hygiene and well-being, offering solutions for various sectors while promoting environmental sustainability and customer focus | Facilities Services | π«π· Puteaux | 15,750 | 1883 |
| 10 | [Worldline](https://www.tamtam.ai/c/worldline) (worldline.com)
Helps businesses accelerate their growth journey quickly, simply, and securely with advanced payments technology, local expertise, and customized solutions. | Financial Services | π«π· Puteaux | 15,714 | |
| 11 | [Arkema](https://www.tamtam.ai/c/arkema) (arkema.com)
Designs innovative, sustainable materials; addresses new energy, technology, resource, mobility, and urbanization challenges with materials science expertise. | Chemical Manufacturing | π«π· Puteaux | 14,720 | 2006 |
| 12 | [AXA en France](https://www.tamtam.ai/c/axa-en-france) (axa.fr)
A global leader in insurance, AXA protects 93 million clients worldwide with a range of products and services for individuals, professionals, and businesses | Insurance | π«π· Nanterre | 11,225 | |
| 13 | [Havas](https://www.tamtam.ai/c/havas) (havas.com)
Global communications network providing integrated, data-driven, AI-powered marketing and communication solutions through collaborative, innovative teams worldwide. | Advertising Services | π«π· Puteaux | 11,029 | |
| 14 | [CANAL+ Group](https://www.tamtam.ai/c/canal-group) (canalplusgroup.com)
Global media and entertainment company operating across audio-visual value chain: production, broadcast, distribution, aggregation, telecom, with stakes in other platforms. | Broadcast Media Production and Distribution | π«π· Issy-les-Moulineaux | 9,882 | |
| 15 | [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 | π«π· Levallois-Perret | 9,551 | |
| 16 | [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 | π«π· Meudon | 8,787 | 1899 |
| 17 | [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 | π«π· Courbevoie | 8,776 | |
| 18 | [Assystem](https://www.tamtam.ai/c/assystem) (assystem.com)
Independent nuclear engineering company accelerating energy transition, developing nuclear and renewable energies, power grids, hydrogen projects, and low-carbon transport. | Business Consulting and Services | π«π· Courbevoie | 8,143 | |
| 19 | [Edenred](https://www.tamtam.ai/c/edenred) (edenred.com)
Provides digital solutions for employee benefits, fleet management, and corporate payments, enhancing well-being, purchasing power, and business efficiency through a technology platform. | Financial Services | π«π· Issy-les-Moulineaux | 8,010 | |
| 20 | [VINCI](https://www.tamtam.ai/c/vinci-construction-ay-champagne) (vinci.com)
Designs, finances, builds, and operates infrastructure and facilities globally to improve daily life and mobility, with a commitment to environmental and social responsibility. | Construction | π«π· Nanterre | 7,981 | 1899 |
| 21 | [Dassault Aviation](https://www.tamtam.ai/c/dassault-aviation) (dassault-aviation.com)
French aerospace company designs, builds military aircraft, business jets, and space systems. Leader in new generation fighters, Rafale, Falcon jets, and pioneering digital technologies. | Aviation and Aerospace Component Manufacturing | π«π· Saint-Cloud | 7,267 | |
| 22 | [Econocom](https://www.tamtam.ai/c/econocom) (econocom.com)
Supplies, finances, and provides managed services for workplace, audiovisual, and infrastructures, supporting businesses in their digital transformation with equipment and support. | IT Services and IT Consulting | π«π· Puteaux | 7,123 | 1973 |
| 23 | [Coface](https://www.tamtam.ai/c/coface) (coface.com)
Manages credit risk for companies, supporting their growth by offering trade credit insurance, business information, debt collection, and factoring solutions. | Insurance | π«π· Bois-Colombes | 6,948 | 1946 |
| 24 | [JCDecaux](https://www.tamtam.ai/c/jcdecaux) (jcdecaux.com)
Global leader in outdoor advertising, specializing in street furniture, transport advertising, and billboard displays worldwide. | Advertising Services | π«π· Neuilly-sur-Seine | 6,312 | 1964 |
| 25 | [Pluxee](https://www.tamtam.ai/c/pluxee) (pluxeegroup.com)
Leading global partner offering diverse digital products. These provide employees freedom of choice for daily expenses, culture, incentives, and gifts in 28 countries. | Consumer Services | π«π· Issy-les-Moulineaux | 5,644 | |
| 26 | [FDJ UNITED](https://www.tamtam.ai/c/fdj-united) (groupefdj.com)
European champion in gaming and betting, operating a diverse portfolio of iconic brands for 33 million players across 15 countries. | Gambling Facilities and Casinos | π«π· Boulogne-Billancourt | 5,237 | 1933 |
| 27 | [Groupe TF1](https://www.tamtam.ai/c/groupe-tf1) (groupe-tf1.fr)
French media leader in linear TV, streaming, and audiovisual production, offering free entertainment and quality information to millions of French people. | Broadcast Media Production and Distribution | π«π· Boulogne-Billancourt | 5,115 | |
| 28 | [Verallia](https://www.tamtam.ai/c/verallia) (verallia.com)
Leading European producer of glass containers for food and beverages, providing innovative, customized, and environmentally friendly solutions globally. | Glass Product Manufacturing | π«π· Courbevoie | 4,263 | |
| 29 | [Cegedim](https://www.tamtam.ai/c/cegedim) (cegedim.com)
Technology and services for digital data flow management in healthcare ecosystems and B2B, plus business software publishing for healthcare and insurance professionals. | IT Services and IT Consulting | π«π· Boulogne-Billancourt | 4,103 | 1969 |
| 30 | [Quadient](https://www.tamtam.ai/c/quadient) (quadient.com)
This company helps simplify customer connections through Intelligent Communication Automation, Parcel Locker Solutions, and Mail-Related Solutions, striving for customer experience excellence | Software Development | π«π· Bagneux | 3,963 | 1924 |
## 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 13, 2026.
## More company lists in the Hauts-de-Seine department
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- [Multinational companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/multinational-companies-hauts-de-seine) (1,231)
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- [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)
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- [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)
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- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
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- [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)
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## The same list elsewhere in France
- [Publicly traded companies in France](https://www.tamtam.ai/l/publicly-traded-companies-france) (461)
- [Publicly traded companies in Γle-de-France](https://www.tamtam.ai/l/publicly-traded-companies-ile-de-france) (267)
- [Publicly traded companies in Auvergne-RhΓ΄ne-Alpes](https://www.tamtam.ai/l/publicly-traded-companies-auvergne-rhone-alpes) (51)
- [Publicly traded companies in Grand Est](https://www.tamtam.ai/l/publicly-traded-companies-grand-est) (26)
- [Publicly traded companies in Paris](https://www.tamtam.ai/l/publicly-traded-companies-paris) (148)
## The same list elsewhere
- [Publicly traded companies in the world](https://www.tamtam.ai/l/publicly-traded-companies-in-the-world) (11,531)
- [Publicly traded companies in Europe](https://www.tamtam.ai/l/publicly-traded-companies-in-europe) (3,622)
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Source: https://www.tamtam.ai/l/publicly-traded-companies-hauts-de-seine