# The 100 largest companies in the Hauts-de-Seine department

Tamtam tracks 5,160 companies headquartered in the Hauts-de-Seine department. This list ranks the 100 largest by number of employees on LinkedIn, led by Sodexo Live!, VINCI Concessions and VINCI Airports. Their median headcount is 8,347. Half of them were founded in 1981 or later. The most common headquarters are Issy-les-Moulineaux (17), Nanterre (17) and Puteaux (12).

The companies listed are large corporations based in Hauts-de-Seine, primarily operating in engineering, energy, and services. They represent established players rather than young companies. For instance, VINCI Concessions is a global leader in mobility infrastructure, Orange is a major telecommunications operator, Schneider Electric focuses on energy technology, and Thales specializes in cybersecurity and defense.

The data shows a strong concentration of headquarters in a few cities within the department. Nanterre hosts several large entities like VINCI Concessions, VINCI Airports, and Faurecia. Similarly, Issy-les-Moulineaux is home to Orange and Sodexo, highlighting specific geographical clusters for these major employers.

🇫🇷 Hauts-de-Seine · 100 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Sodexo Live!](https://www.tamtam.ai/c/sodexo-live) (sodexolive.com)<br>Delivers world-class sports, leisure, and travel experiences, surprising and delighting guests, enriching lives, and turning venues and events into unforgettable memories, boosting revenue growth. | Hospitality | 🇫🇷 Boulogne-Billancourt | 412,000 |  |
| 2 | [VINCI Concessions](https://www.tamtam.ai/c/vinci-concessions) (vinci-concessions.com)<br>A global leader in mobility infrastructure, designing, financing, building, operating, and maintaining airports, highways, and railway projects in 23 countries | Civil Engineering | 🇫🇷 Nanterre | 219,000 |  |
| 3 | [VINCI Airports](https://www.tamtam.ai/c/vinci-airports) (vinci-airports.com)<br>Operates, develops, finances, builds airports globally, optimizing performance, modernizing infrastructure, and driving environmental transition with a net-zero emissions goal. | Airlines and Aviation | 🇫🇷 Nanterre | 219,000 |  |
| 4 | [Orange](https://www.tamtam.ai/c/orange-issy-les-moulineaux) (orange.com)<br>A leading global telecommunications operator offering services to millions of customers and multinational companies across 26 countries | Telecommunications | 🇫🇷 Issy-les-Moulineaux | 146,935 |  |
| 5 | [Sodexo](https://www.tamtam.ai/c/sodexo) (sodexo.com)<br>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 | 🇫🇷 Issy-les-Moulineaux | 100,222 | 1966 |
| 6 | [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 |
| 7 | [Groupe Crédit Agricole](https://www.tamtam.ai/c/groupe-credit-agricole) (credit-agricole.com)<br>Leading European retail bank offering comprehensive financial services including loans, insurance, asset management, corporate banking, and customer-focused solutions. | Banking | 🇫🇷 Montrouge | 76,287 |  |
| 8 | [Thales](https://www.tamtam.ai/c/thales) (thalesgroup.com)<br>Multinational specializing in cybersecurity, defense, aerospace, digital identity, and secure communications for governments and industries. | Defense and Space Manufacturing | 🇫🇷 Meudon | 65,031 |  |
| 9 | [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 |  |
| 10 | [ALTEN](https://www.tamtam.ai/c/alten) (alten.com)<br>Provides engineering and IT services, supporting businesses in technological and sustainable transformation across various industries with high-level consultant-engineers. | Engineering Services | 🇫🇷 Boulogne-Billancourt | 38,710 | 1988 |
| 11 | [Saint-Gobain](https://www.tamtam.ai/c/saint-gobain) (saint-gobain.com)<br>Designs, manufactures, distributes materials, services for residential, non-residential, infrastructure markets; provides sustainable, performing, well-being solutions. | Wholesale Building Materials | 🇫🇷 Courbevoie | 36,697 |  |
| 12 | [Gendarmerie Nationale](https://www.tamtam.ai/c/gendarmerie-nationale) (linktr.ee)<br>A military institution ensuring security and peace, protecting citizens and their property, conducting judicial police, assisting people, and maintaining order | Security and Investigations | 🇫🇷 Issy-les-Moulineaux | 33,955 |  |
| 13 | [Faurecia](https://www.tamtam.ai/c/faurecia) (faurecia.com)<br>Designing automotive tech solutions for safe, personalized, connected, and sustainable mobility. A company of the Group FORVIA, contributing to tomorrow's mobility. | Motor Vehicle Manufacturing | 🇫🇷 Nanterre | 29,764 | 1997 |
| 14 | [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 |  |
| 15 | [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 |  |
| 16 | [Lidl France](https://www.tamtam.ai/c/lidl-france) (lidl.fr)<br>Leading discount retailer in France, operating over 1,570 stores with 45,000 employees. Focuses on proximity, selected assortment, and continuous store modernization. | Retail | 🇫🇷 Châtenay-Malabry | 21,992 | 1989 |
| 17 | [VINCI Construction](https://www.tamtam.ai/c/vinci-construction) (vinci-construction.com)<br>French global construction group, with over 830 companies and 69,000 employees in 100 countries. Specializes in building, civil engineering, and related activities. | Construction | 🇫🇷 Nanterre | 17,372 |  |
| 18 | [ELIS](https://www.tamtam.ai/c/elis-puteaux) (elis.com)<br>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 | 🇫🇷 Puteaux | 15,750 | 1883 |
| 19 | [My own company (I am self-employed)](https://www.tamtam.ai/c/my-own-company-i-am-self-employed) (anglais-pratique.fr)<br>This company provides Project Management and Professional English teaching services to students at EPITA and University of Paris Panthéon-Sorbonne Additionally, the founder maintains a website for French speakers to improve their English skills | Professional Training and Coaching | 🇫🇷 Antony | 15,746 | 2010 |
| 20 | [Worldline](https://www.tamtam.ai/c/worldline) (worldline.com)<br>Helps businesses accelerate their growth journey quickly, simply, and securely with advanced payments technology, local expertise, and customized solutions. | Financial Services | 🇫🇷 Puteaux | 15,714 |  |
| 21 | [DPDgroup](https://www.tamtam.ai/c/dpdgroup) (linkedin.com)<br>Global logistics company, formerly known as DPDgroup, now operating under the name Geopost Connect with us on LinkedIn for updates | Truck Transportation | 🇫🇷 Issy-les-Moulineaux | 15,615 | 1999 |
| 22 | [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 |  |
| 23 | [Arkema](https://www.tamtam.ai/c/arkema) (arkema.com)<br>Designs innovative, sustainable materials; addresses new energy, technology, resource, mobility, and urbanization challenges with materials science expertise. | Chemical Manufacturing | 🇫🇷 Puteaux | 14,720 | 2006 |
| 24 | [Crédit Agricole CIB](https://www.tamtam.ai/c/credit-agricole-cib) (ca-cib.com)<br>Corporate and investment bank, global financial services for large corporations and institutions, capital markets, structured finance, commercial banking, pioneering climate finance. | Banking | 🇫🇷 Montrouge | 14,647 | 2004 |
| 25 | [Servier](https://www.tamtam.ai/c/servier) (servier.com)<br>Develops pharmaceuticals focused on cardiology, venous diseases, oncology, neurology, and rare diseases, prioritizing patient needs and investing heavily in research. | Pharmaceutical Manufacturing | 🇫🇷 Suresnes | 14,291 | 1954 |
| 26 | [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 |
| 27 | [Transdev](https://www.tamtam.ai/c/transdev) (transdev.com)<br>Provides safe, reliable, and innovative public transportation solutions globally, empowering daily freedom to move for millions of passengers across 19 countries, serving common good. | Urban Transit Services | 🇫🇷 Issy-les-Moulineaux | 13,519 | 2011 |
| 28 | [Yves Rocher](https://www.tamtam.ai/c/yves-rocher) (groupe-rocher.com)<br>Creates natural, effective, and committed cosmetics from plant active ingredients, cultivated and transformed into high-performance formulas, distributed globally with environmental commitment. | Retail | 🇫🇷 Issy-les-Moulineaux | 12,823 | 1959 |
| 29 | [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 |
| 30 | [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 |  |
| 31 | [Altran](https://www.tamtam.ai/c/altran) (capgemini-engineering.com)<br>Altran, now Capgemini Engineering, offers engineering services Follow them on LinkedIn for updates and insights | IT Services and IT Consulting | 🇫🇷 Neuilly-sur-Seine | 11,652 |  |
| 32 | [Bolloré Logistics](https://www.tamtam.ai/c/bollore-logistics) (cevalogistics.com)<br>A global logistics subsidiary with a powerful network spanning 146 countries, offering tailored solutions with 15,000 professionals, and a focus on community engagement | Transportation, Logistics, Supply Chain and Storage | 🇫🇷 Puteaux | 11,579 |  |
| 33 | [VINCI Construction France](https://www.tamtam.ai/c/vinci-construction-france) (france.vinci-construction.com)<br>Leading French construction company offering general contracting, design-build, and specialized services through its local-global organization, 473 agencies, and 24,000 employees nationwide | Construction | 🇫🇷 Nanterre | 11,427 |  |
| 34 | [AXA en France](https://www.tamtam.ai/c/axa-en-france) (axa.fr)<br>A global leader in insurance, AXA protects 93 million clients worldwide with a range of products and services for individuals, professionals, and businesses | Insurance | 🇫🇷 Nanterre | 11,225 |  |
| 35 | [Havas](https://www.tamtam.ai/c/havas) (havas.com)<br>Global communications network providing integrated, data-driven, AI-powered marketing and communication solutions through collaborative, innovative teams worldwide. | Advertising Services | 🇫🇷 Puteaux | 11,029 |  |
| 36 | [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 |
| 37 | [Croix-Rouge française](https://www.tamtam.ai/c/croix-rouge-francaise) (croix-rouge.fr)<br>Manages a network of health, medico-social, and training establishments and services, employing staff dedicated to assisting vulnerable populations. | Non-profit Organizations | 🇫🇷 Montrouge | 10,865 | 1864 |
| 38 | [Devoteam](https://www.tamtam.ai/c/devoteam) (devoteam.com)<br>AI-driven tech consulting firm specializing in cloud platforms, cyber, data, and sustainability, guiding businesses through sustainable digital transformation to deliver value. | Business Consulting and Services | 🇫🇷 Levallois-Perret | 10,274 |  |
| 39 | [Societe Generale Corporate and Investment Banking - SGCIB](https://www.tamtam.ai/c/societe-generale-corporate-and-investment-banking-sgcib) (societegenerale.com)<br>Supports clients through expansion and challenges, offering tailored solutions, leveraging potential, and providing authentic advisory relationships for financial issues and risk management. | Financial Services | 🇫🇷 Nanterre | 10,078 | 1990 |
| 40 | [CANAL+ Group](https://www.tamtam.ai/c/canal-group) (canalplusgroup.com)<br>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 | 🇫🇷 Issy-les-Moulineaux | 9,882 |  |
| 41 | [Apave](https://www.tamtam.ai/c/apave) (apave.com)<br>Specializes in technical, human, environmental, and digital risk management, ensuring safety and performance across various economic sectors for over 150 years. | Environmental Services | 🇫🇷 Courbevoie | 9,778 | 1867 |
| 42 | [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 |  |
| 43 | [Forvis Mazars Group](https://www.tamtam.ai/c/forvis-mazars-group) (forvismazars.com)<br>International partnership delivering audit, tax, and advisory services across one hundred countries and territories through an integrated global professional services network. | Accounting | 🇫🇷 Levallois-Perret | 9,534 |  |
| 44 | [BNP Paribas Cardif](https://www.tamtam.ai/c/bnp-paribas-cardif) (bnpparibascardif.com)<br>Global leader in bancassurance and personal insurance, offering products and services through partnerships to over 80 million customers worldwide. | Insurance | 🇫🇷 Nanterre | 9,381 |  |
| 45 | [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 |
| 46 | [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 |  |
| 47 | [Parfums Christian Dior](https://www.tamtam.ai/c/parfums-christian-dior) (dior.com)<br>Creates luxury fragrances and cosmetics, upholding a heritage of innovation and global beauty through meticulous production and cultivation of talent. | Personal Care Product Manufacturing | 🇫🇷 Neuilly-sur-Seine | 8,660 | 1946 |
| 48 | [Sofitel](https://www.tamtam.ai/c/sofitel) (sofitel.com)<br>Luxury hotel operator worldwide. Cultural connections, extraordinary stays. French art de vivre with local culture, culinary art, wellness, captivating art. | Hospitality | 🇫🇷 Issy-les-Moulineaux | 8,647 | 1964 |
| 49 | [Arval BNP Paribas Group](https://www.tamtam.ai/c/arval-bnp-paribas-group) (arval.com)<br>Arval provides full-service vehicle leasing and new mobility solutions, with a global presence serving corporate, small business, and individual clients | Financial Services | 🇫🇷 Rueil-Malmaison | 8,525 | 1989 |
| 50 | [Lagardère Travel Retail](https://www.tamtam.ai/c/lagardere-travel-retail) (lagardere-tr.com)<br>Operates retail stores in travel hubs, offering essentials, duty-free, fashion, and foodservice, enhancing traveler experience and value for stakeholders globally. | Retail | 🇫🇷 Levallois-Perret | 8,347 | 1852 |
| 51 | [Assystem](https://www.tamtam.ai/c/assystem) (assystem.com)<br>Independent nuclear engineering company accelerating energy transition, developing nuclear and renewable energies, power grids, hydrogen projects, and low-carbon transport. | Business Consulting and Services | 🇫🇷 Courbevoie | 8,143 |  |
| 52 | [CACEIS](https://www.tamtam.ai/c/caceis) (caceis.com)<br>Provides asset servicing for asset managers and institutional investors, including execution, clearing, custody, fund administration, and middle-office outsourcing across continents. | Banking | 🇫🇷 Montrouge | 8,046 | 2005 |
| 53 | [Edenred](https://www.tamtam.ai/c/edenred) (edenred.com)<br>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 | 🇫🇷 Issy-les-Moulineaux | 8,010 |  |
| 54 | [ORPI](https://www.tamtam.ai/c/orpi) (orpi.com)<br>A real estate organization offering personalized services to clients with a decentralized cooperative structure and a unique database of over 80,000 properties | Real Estate | 🇫🇷 Clichy | 8,000 | 1966 |
| 55 | [VINCI](https://www.tamtam.ai/c/vinci-construction-ay-champagne) (vinci.com)<br>Designs, finances, builds, and operates infrastructure and facilities globally to improve daily life and mobility, with a commitment to environmental and social responsibility. | Construction | 🇫🇷 Nanterre | 7,981 | 1899 |
| 56 | [Keolis Group](https://www.tamtam.ai/c/keolis-group) (keolis.com)<br>Global leader in shared mobility, co-constructing safe, smart, and sustainable public transport solutions including metros, tramways, buses, and various innovative services. | Ground Passenger Transportation | 🇫🇷 Courbevoie | 7,847 | 2001 |
| 57 | [Bel](https://www.tamtam.ai/c/bel) (groupe-bel.com)<br>Leading food producer of dairy, fruit, and plant-based products, globally recognized for branded cheeses and healthy food options distributed in over 120 countries. | Food and Beverage Manufacturing | 🇫🇷 Suresnes | 7,770 |  |
| 58 | [Dassault Aviation](https://www.tamtam.ai/c/dassault-aviation) (dassault-aviation.com)<br>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 | 🇫🇷 Saint-Cloud | 7,267 |  |
| 59 | [Allianz France](https://www.tamtam.ai/c/allianz-france) (allianz.fr)<br>Offers comprehensive insurance, assistance, and financial services to individuals, professionals, businesses, and communities worldwide, with a strong presence in France. | Insurance | 🇫🇷 Puteaux | 7,227 | 1890 |
| 60 | [Econocom](https://www.tamtam.ai/c/econocom) (econocom.com)<br>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 | 🇫🇷 Puteaux | 7,123 | 1973 |
| 61 | [Coface](https://www.tamtam.ai/c/coface) (coface.com)<br>Manages credit risk for companies, supporting their growth by offering trade credit insurance, business information, debt collection, and factoring solutions. | Insurance | 🇫🇷 Bois-Colombes | 6,948 | 1946 |
| 62 | [SAUR](https://www.tamtam.ai/c/saur) (saur.com)<br>A global company providing water and essential services, committed to protecting the environment and ensuring quality service for municipalities and cities worldwide | Environmental Services | 🇫🇷 Issy-les-Moulineaux | 6,850 | 1933 |
| 63 | [Actemium](https://www.tamtam.ai/c/actemium) (actemium.com)<br>Delivering bespoke solutions and services globally, combining local business unit expertise to create value throughout the industrial life cycle for a sustainable world. | Automation Machinery Manufacturing | 🇫🇷 Nanterre | 6,718 |  |
| 64 | [Africa Global Logistics](https://www.tamtam.ai/c/africa-global-logistics) (aglgroup.com)<br>Specializes in international transport, logistics, and supply chain management focused on supporting Africa's transformation and development. | Freight and Package Transportation | 🇫🇷 Puteaux | 6,706 | 2023 |
| 65 | [BURGER KING FRANCE](https://www.tamtam.ai/c/burger-king-france) (burgerking.fr)<br>Second largest burger chain globally, expanding in France with flame-grilled beef, fresh ingredients, customizable burgers, and the iconic WHOPPER®. | Restaurants | 🇫🇷 Clichy | 6,509 | 1954 |
| 66 | [JCDecaux](https://www.tamtam.ai/c/jcdecaux) (jcdecaux.com)<br>Global leader in outdoor advertising, specializing in street furniture, transport advertising, and billboard displays worldwide. | Advertising Services | 🇫🇷 Neuilly-sur-Seine | 6,312 | 1964 |
| 67 | [Groupe ETAM](https://www.tamtam.ai/c/groupe-etam) (etam-groupe.com)<br>Family-owned and independent, a leading international retailer in innovative and creative lingerie and fashion, operating through multiple brands and over 1500 stores globally. | Textile Manufacturing | 🇫🇷 Clichy | 6,300 | 1916 |
| 68 | [Astek](https://www.tamtam.ai/c/astek) (astekgroup.fr)<br>Supports clients with high-value service, deep technical expertise across technology, operations, and engineering, focusing on sustainable digital transformation with humans at the core. | IT Services and IT Consulting | 🇫🇷 Boulogne-Billancourt | 6,035 | 1988 |
| 69 | [AXA Partners](https://www.tamtam.ai/c/axa-partners) (axapartners.com)<br>Offers assistance services, travel insurance, and credit protection, helping corporate clients enhance their customers' experience with innovative solutions globally. | Insurance | 🇫🇷 Malakoff | 5,905 | 2016 |
| 70 | [TRIGO](https://www.tamtam.ai/c/trigo) (trigo-group.com)<br>Provides comprehensive quality solutions and management services for automotive, aerospace, and transport industries, addressing supply chain challenges globally with local expertise. | Business Consulting and Services | 🇫🇷 Nanterre | 5,771 | 1997 |
| 71 | [Pluxee](https://www.tamtam.ai/c/pluxee) (pluxeegroup.com)<br>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 | 🇫🇷 Issy-les-Moulineaux | 5,644 |  |
| 72 | [METRO France](https://www.tamtam.ai/c/metro-france) (metro.fr)<br>Leading food wholesaler for independent restaurants and retailers in France, providing quality products and advice to professional clients, focusing on authentic, healthy, and creative food. | Wholesale | 🇫🇷 Nanterre | 5,619 | 1971 |
| 73 | [SAGEMCOM](https://www.tamtam.ai/c/sagemcom) (sagemcom.com)<br>Provides innovative broadband internet, entertainment, and managed energy solutions. Designs sustainable technology, leader in its markets, with employee ownership. | Telecommunications | 🇫🇷 Bois-Colombes | 5,279 | 2008 |
| 74 | [FDJ UNITED](https://www.tamtam.ai/c/fdj-united) (groupefdj.com)<br>European champion in gaming and betting, operating a diverse portfolio of iconic brands for 33 million players across 15 countries. | Gambling Facilities and Casinos | 🇫🇷 Boulogne-Billancourt | 5,237 | 1933 |
| 75 | [Vulcain Engineering Group](https://www.tamtam.ai/c/vulcain-engineering-group) (vulcain-eng.com)<br>Provides engineering consulting and project solutions for energy and environmental sectors, delivering technical assistance, expertise, and project management globally. | Business Consulting and Services | 🇫🇷 Neuilly-sur-Seine | 5,234 | 2005 |
| 76 | [Groupe TF1](https://www.tamtam.ai/c/groupe-tf1) (groupe-tf1.fr)<br>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 | 🇫🇷 Boulogne-Billancourt | 5,115 |  |
| 77 | [Securitas France](https://www.tamtam.ai/c/securitas-france) (securitas.fr)<br>Provides private security services including surveillance and guarding, tailored to meet specific business security needs and requirements. | Security and Investigations | 🇫🇷 Issy-les-Moulineaux | 5,060 |  |
| 78 | [GE Renewable Energy](https://www.tamtam.ai/c/ge-renewable-energy) (ge.com)<br>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 |  |
| 79 | [GE Grid Solutions](https://www.tamtam.ai/c/ge-grid-solutions) (gevernova.com)<br>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 |
| 80 | [BNP Paribas Asset Management](https://www.tamtam.ai/c/bnp-paribas-asset-management) (bnpparibas-am.com)<br>Manages over —1.6 trillion in assets for clients globally, offering diverse liquid and alternative investment solutions with a strong focus on sustainable strategies. | Financial Services | 🇫🇷 Nanterre | 4,879 |  |
| 81 | [Eurovia France](https://www.tamtam.ai/c/eurovia-france) (eurovia.fr)<br>Construction and development of transport infrastructure and urban areas, supporting economic growth, social cohesion, and local partnerships. | Construction | 🇫🇷 Nanterre | 4,870 |  |
| 82 | [Fazenda](https://www.tamtam.ai/c/fazenda) (fazenda.fr)<br>Fazenda innovates by offering outstanding coffee in convenient capsules for a new and quality-conscious clientele who appreciates exceptional taste | Manufacturing | 🇫🇷 Neuilly-sur-Seine | 4,839 | 2016 |
| 83 | [CNP Assurances](https://www.tamtam.ai/c/cnp-assurances) (cnp.fr)<br>Leading global insurer offering personal risk protection, savings, and pension solutions through multi-partnership models, promoting an inclusive and sustainable society. | Insurance | 🇫🇷 Issy-les-Moulineaux | 4,828 | 1959 |
| 84 | [Synergie France](https://www.tamtam.ai/c/synergie-france) (synergie.fr)<br>French leader in HR services: recruitment, training, and HR consulting Providing solutions in various sectors, emphasizing proximity, performance, and diversity | Human Resources Services | 🇫🇷 Boulogne-Billancourt | 4,804 |  |
| 85 | [ARTE](https://www.tamtam.ai/c/arte) (arte.tv)<br>A European cultural channel offering a variety of programs on cinema, fiction, documentaries, concerts, news, and cultural magazines in six languages | Broadcast Media Production and Distribution | 🇫🇷 Issy-les-Moulineaux | 4,761 | 1990 |
| 86 | [Pullman Hotels & Resorts](https://www.tamtam.ai/c/pullman-hotels-and-resorts) (all.accor.com)<br>Offers superior comfort and inspiring spaces in over 155 destinations worldwide, creating new perspectives for guests. Part of a leading hospitality group. | Hospitality | 🇫🇷 Issy-les-Moulineaux | 4,705 | 2007 |
| 87 | [OPEN](https://www.tamtam.ai/c/open-levallois-perret) (open.global)<br>Supports large companies and public organizations in digital transformation, focusing on technological performance, sovereignty, digital sobriety, and scaling innovations with advanced solutions. | IT Services and IT Consulting | 🇫🇷 Levallois-Perret | 4,705 | 1989 |
| 88 | [GEFCO](https://www.tamtam.ai/c/gefco) (cevalogistics.com)<br>Global logistics, supply chain solutions. Experts respond to demanding challenges, pushing boundaries with agility. Now part of a top 5 global logistics player. | Truck Transportation | 🇫🇷 Puteaux | 4,508 |  |
| 89 | [Spie batignolles](https://www.tamtam.ai/c/spie-batignolles) (spiebatignolles.fr)<br>A major player in building, infrastructure, and services, emphasizing trust, initiative, and collective effort for projects aligned with social and environmental challenges | Construction | 🇫🇷 Neuilly-sur-Seine | 4,459 |  |
| 90 | [POMONA](https://www.tamtam.ai/c/pomona) (pomona.fr)<br>Leading distributor of food and non-food products to catering professionals and specialized local food shops, optimizing logistics and delivery. | Wholesale | 🇫🇷 Antony | 4,445 | 1912 |
| 91 | [Colas Rail](https://www.tamtam.ai/c/colas-rail) (colasrail.com)<br>Imagining innovative, eco-friendly railway solutions for global well-being and future challenges, collaborating internationally to achieve ambitious projects with passionate experts. | Railroad Equipment Manufacturing | 🇫🇷 Puteaux | 4,428 | 2008 |
| 92 | [CERBA HEALTHCARE](https://www.tamtam.ai/c/cerba-healthcare) (cerbahealthcare.com)<br>A leading player in medical diagnosis focusing on prevention, disease detection, early diagnosis, and personalized medicine to advance health worldwide | Hospitals and Health Care | 🇫🇷 Issy-les-Moulineaux | 4,406 |  |
| 93 | [APC by Schneider Electric](https://www.tamtam.ai/c/apc-by-schneider-electric) (apc.com)<br>Provides reliable, efficient, connected, and innovative products for IT equipment, ensuring accessibility and security for dynamic IT in a connected world. | IT Services and IT Consulting | 🇫🇷 Rueil-Malmaison | 4,378 | 1981 |
| 94 | [DomusVi France](https://www.tamtam.ai/c/domusvi-france) (domusvi.com)<br>Provides elderly care through innovative therapies and social services while focusing on professional employee development to improve quality of life for residents. | Individual and Family Services | 🇫🇷 Suresnes | 4,373 |  |
| 95 | [Sogea-Satom](https://www.tamtam.ai/c/sogea-satom) (sogea-satom.com)<br>An African company specializing in roadworks, civil engineering, hydraulic works, and construction, with a strong focus on quality, teamwork, and customer satisfaction | Construction | 🇫🇷 Nanterre | 4,304 |  |
| 96 | [Orange Cyberdefense](https://www.tamtam.ai/c/orange-cyberdefense) (orangecyberdefense.com)<br>Expert cybersecurity business unit of the Orange Group. They are a leading security provider, striving to build a safer digital society. | IT Services and IT Consulting | 🇫🇷 Nanterre | 4,274 |  |
| 97 | [Ingenico](https://www.tamtam.ai/c/ingenico) (ingenico.com)<br>Provides global payment acceptance and services, deploying millions of payment devices and powering thousands of apps to simplify payments and add value. | Financial Services | 🇫🇷 Suresnes | 4,265 |  |
| 98 | [Verallia](https://www.tamtam.ai/c/verallia) (verallia.com)<br>Leading European producer of glass containers for food and beverages, providing innovative, customized, and environmentally friendly solutions globally. | Glass Product Manufacturing | 🇫🇷 Courbevoie | 4,263 |  |
| 99 | [INDIGO Group](https://www.tamtam.ai/c/indigo-group) (group-indigo.com)<br>Global provider of parking, individual mobility, digital solutions, and urban services with strong local presence in nine countries. | Consumer Services | 🇫🇷 Puteaux | 4,262 | 2015 |
| 100 | [Sodexo Benefits and Rewards Services](https://www.tamtam.ai/c/sodexo-benefits-and-rewards-services) (pluxeegroup.com)<br>Leading global employee benefits and engagement partner, offering 250+ products across 31 countries for daily choices, meals, culture, incentives, and gift vouchers. | Consumer Services | 🇫🇷 Issy-les-Moulineaux | 4,189 |  |

## 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 11, 2026.

## More company lists in the Hauts-de-Seine department

- [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)
- [Energy companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/energy-companies-hauts-de-seine) (144)

## The same list elsewhere in France

- [The largest companies in France](https://www.tamtam.ai/l/largest-companies-france) (90,813)
- [The largest companies in Île-de-France](https://www.tamtam.ai/l/largest-companies-ile-de-france) (36,143)
- [The largest companies in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/largest-companies-auvergne-rhone-alpes) (11,033)
- [The largest companies in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/largest-companies-provence-alpes-cote-dazur) (6,699)
- [The largest companies in Occitanie](https://www.tamtam.ai/l/largest-companies-occitanie) (5,769)
- [The largest companies in Grand Est](https://www.tamtam.ai/l/largest-companies-grand-est) (5,700)
- [The largest companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/largest-companies-nouvelle-aquitaine) (5,460)
- [The largest companies in the Rhône department](https://www.tamtam.ai/l/largest-companies-rhone) (4,813)
- [The largest companies in Hauts-de-France](https://www.tamtam.ai/l/largest-companies-hauts-de-france) (4,505)
- [The largest companies in Pays de la Loire](https://www.tamtam.ai/l/largest-companies-pays-de-la-loire) (4,269)
- [The largest companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/largest-companies-bouches-du-rhone) (3,318)
- [The largest companies in Brittany](https://www.tamtam.ai/l/largest-companies-brittany) (3,058)
- [The largest companies in the Nord department](https://www.tamtam.ai/l/largest-companies-nord) (2,806)
- [The largest companies in the Gironde department](https://www.tamtam.ai/l/largest-companies-gironde) (2,435)
- [The largest companies in the Haute-Garonne department](https://www.tamtam.ai/l/largest-companies-haute-garonne) (2,406)
- [The largest companies in Normandy](https://www.tamtam.ai/l/largest-companies-normandy) (2,380)
- [The largest companies in the Loire-Atlantique department](https://www.tamtam.ai/l/largest-companies-loire-atlantique) (2,046)
- [The largest companies in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/largest-companies-bourgogne-franche-comte) (1,867)
- [The largest companies in Centre-Val de Loire](https://www.tamtam.ai/l/largest-companies-centre-val-de-loire) (1,701)
- [The largest companies in the Alpes-Maritimes department](https://www.tamtam.ai/l/largest-companies-alpes-maritimes) (1,538)
- [The largest companies in Paris](https://www.tamtam.ai/l/largest-companies-paris) (22,790)
- [The largest companies in Lyon](https://www.tamtam.ai/l/largest-companies-lyon) (2,679)
- [The largest companies in Toulouse](https://www.tamtam.ai/l/largest-companies-toulouse) (1,565)
- [The largest companies in Marseille](https://www.tamtam.ai/l/largest-companies-marseille) (1,534)

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Source: https://www.tamtam.ai/l/largest-companies-hauts-de-seine