The Hauts-de-Seine department hosts a concentration of large manufacturers across diverse sectors. These include global players like Schneider Electric, a leader in energy technology, and Thales, specializing in cybersecurity and defense. Other prominent companies are Saint-Gobain, known for building materials, and Faurecia, which designs automotive technology solutions. The presence of firms such as Servier in pharmaceuticals and Framatome in nuclear power generation highlights the breadth of industrial activity.
A notable pattern among these companies is their focus on advanced industrial solutions and sustainable technologies. For example, Arkema designs innovative, sustainable materials, and Plastic Omnium focuses on zero-carbon mobility solutions. Many of these large enterprises are headquartered in cities like Courbevoie, Meudon, and Nanterre, indicating a geographical clustering of major industrial operations within the department.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 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. |
87,938 | |||
| 2 |
Thalesthalesgroup.com
Multinational specializing in cybersecurity, defense, aerospace, digital identity, and secure communications for governments and industries. |
65,031 | |||
| 3 |
Saint-Gobainsaint-gobain.com
Designs, manufactures, distributes materials, services for residential, non-residential, infrastructure markets; provides sustainable, performing, well-being solutions. |
36,697 | |||
| 4 |
Faureciafaurecia.com
Designing automotive tech solutions for safe, personalized, connected, and sustainable mobility. A company of the Group FORVIA, contributing to tomorrow's mobility. |
29,764 | |||
| 5 |
Arkemaarkema.com
Designs innovative, sustainable materials; addresses new energy, technology, resource, mobility, and urbanization challenges with materials science expertise. |
14,720 | |||
| 6 |
Servierservier.com
Develops pharmaceuticals focused on cardiology, venous diseases, oncology, neurology, and rare diseases, prioritizing patient needs and investing heavily in research. |
14,291 | |||
| 7 |
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 | |||
| 8 |
Yves Rochergroupe-rocher.com
Creates natural, effective, and committed cosmetics from plant active ingredients, cultivated and transformed into high-performance formulas, distributed globally with environmental commitment. |
12,823 | |||
| 9 |
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 | |||
| 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. |
9,551 | |||
| 11 |
Vallourecvallourec.com
Provides benchmark tubular solutions for energy, oil and gas, industrial applications, hydrogen, CCUS, geothermal, and solar energy markets. |
8,787 | |||
| 12 |
Nexansnexans.com
Design, manufacture, and services for cable systems across transmission, grid, connectivity, and industry sectors, focusing on sustainable, decarbonized electricity. |
8,776 | |||
| 13 |
Belgroupe-bel.com
Leading food producer of dairy, fruit, and plant-based products, globally recognized for branded cheeses and healthy food options distributed in over 120 countries. |
7,770 | |||
| 14 |
Dassault Aviationdassault-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. |
7,267 | |||
| 15 |
Actemiumactemium.com
Delivering bespoke solutions and services globally, combining local business unit expertise to create value throughout the industrial life cycle for a sustainable world. |
6,718 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Groupe ETAMetam-groupe.com
Family-owned and independent, a leading international retailer in innovative and creative lingerie and fashion, operating through multiple brands and over 1500 stores globally. |
6,300 | |||
| 17 |
SAGEMCOMsagemcom.com
Provides innovative broadband internet, entertainment, and managed energy solutions. Designs sustainable technology, leader in its markets, with employee ownership. |
5,279 | |||
| 18 |
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 | |||
| 19 |
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 | |||
| 20 |
APC by Schneider Electricapc.com
Provides reliable, efficient, connected, and innovative products for IT equipment, ensuring accessibility and security for dynamic IT in a connected world. |
4,378 | |||
| 21 |
Veralliaverallia.com
Leading European producer of glass containers for food and beverages, providing innovative, customized, and environmentally friendly solutions globally. |
4,263 | |||
| 22 |
Delpharmdelpharm.com
A leading Contract Development and Manufacturing Organization (CDMO) with 18 plants worldwide producing various dosage forms and serving demanding customers for 30 years |
3,937 | |||
| 23 |
Faiveley Transportwabtec.com
Designs, manufactures, markets, and maintains advanced components, systems, and services for safe, reliable, and cost-efficient trains and buses, focusing on innovation and customer needs. |
3,432 | |||
| 24 | 2,986 | ||||
| 25 | 2,949 | ||||
| 26 |
Alb茅a Groupalbea-group.com
Provides the world's largest range of beauty and personal care packaging, including tubes, mascaras, lipsticks, and samplers, for global brands. |
2,943 | |||
| 27 |
Groupe Rochergroupe-rocher.com
Operates multiple natural beauty and wellness brands globally, committed to reconnecting people with nature for well-being and pursuing a sustainable ecosystem. |
2,648 | |||
| 28 |
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 | |||
| 29 |
Aubert & Duvalaubertduval.com
Develops and transforms complex metallic materials like special steels, superalloys, titanium, and aluminum for strategic sectors. |
2,243 | |||
| 30 | 2,054 | ||||
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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.
More company lists in the Hauts-de-Seine department
- The largest companies in the Hauts-de-Seine department 5,160
- Multinational companies in the Hauts-de-Seine department 1,231
- IT services companies in the Hauts-de-Seine department 737
- IT Services and IT Consulting companies in the Hauts-de-Seine department 706
- Professional services firms in the Hauts-de-Seine department 629
- Consulting firms in the Hauts-de-Seine department 563
- Companies with in-house R&D in the Hauts-de-Seine department 510
- SaaS companies in the Hauts-de-Seine department 389
- Business Consulting and Services companies in the Hauts-de-Seine department 304
- Software Development companies in the Hauts-de-Seine department 301
- Retail chains in the Hauts-de-Seine department 292
- Advertising Services companies in the Hauts-de-Seine department 281
- Marketing and communications agencies in the Hauts-de-Seine department 235
- Subscription businesses in the Hauts-de-Seine department 228
- Hardware manufacturers in the Hauts-de-Seine department 199
- Financial services firms in the Hauts-de-Seine department 198
- Companies with a mobile app in the Hauts-de-Seine department 189
- Critical infrastructure operators in the Hauts-de-Seine department 169
- AI companies in the Hauts-de-Seine department 159
- Education providers in the Hauts-de-Seine department 159
- Cybersecurity companies in the Hauts-de-Seine department 154
- Distributors and wholesalers in the Hauts-de-Seine department 154
- Recruitment and staffing agencies in the Hauts-de-Seine department 152
- Energy companies in the Hauts-de-Seine department 144
The same list elsewhere in France
- Manufacturers in France 6,697
- Manufacturers in 脦le-de-France 1,515
- Manufacturers in Auvergne-Rh么ne-Alpes 1,216
- Manufacturers in Grand Est 573
- Manufacturers in Nouvelle-Aquitaine 498
- Manufacturers in Pays de la Loire 484
- Manufacturers in Occitanie 433
- Manufacturers in Provence-Alpes-C么te d'Azur 394
- Manufacturers in Hauts-de-France 369
- Manufacturers in the Rh么ne department 322
- Manufacturers in Brittany 307
- Manufacturers in Bourgogne-Franche-Comt茅 272
- Manufacturers in Normandy 245
- Manufacturers in Centre-Val de Loire 207
- Manufacturers in the Nord department 204
- Manufacturers in the Bouches-du-Rh么ne department 187
- Manufacturers in the Is猫re department 178
- Manufacturers in the Haute-Garonne department 159
- Manufacturers in the Gironde department 137
- Manufacturers in the Essonne department 127
- Manufacturers in the Loire-Atlantique department 125
- Manufacturers in the Loire department 122
- Manufacturers in the Bas-Rhin department 118
- Manufacturers in Paris 546
The same list elsewhere
- Manufacturers in the world 39,579
- Manufacturers in Europe 18,156