The companies in Seine-Saint-Denis represent a mix of large, established firms and significant subsidiaries, primarily spanning environmental services, transportation, and manufacturing. Many of these entities, such as Veolia, SNCF Voyageurs, and BNP Paribas - Securities Services, are key players in their respective industries, often operating on a national or international scale. The presence of companies like ACTION CONTRE LA FAIM and Médecins du Monde also highlights a strong non-profit sector.
A notable pattern is the concentration of headquarters in Aubervilliers, with Veolia (Environmental Services), Quick (Restaurants), Radiall (Appliances, Electrical, and Electronics Manufacturing), and MOTUL (Oil and Gas) all based there. Other significant presences include ALDI France (Retail) in Villepinte and Heppner (Truck Transportation) in Rosny-sous-Bois. The data also shows a diverse range of founding dates, indicating a mix of long-standing enterprises and more recent establishments.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Veoliaveolia.com
Works to build environmental security, cleans up pollution, reduces carbon emissions, and regenerates resources through water, waste, and energy solutions. |
50,280 | |||
| 2 |
SNCF Voyageurssncf-voyageurs.com
SNCF Voyageurs is a subsidiary of the SNCF Group responsible for passenger transportation on the French national railway network |
18,564 | |||
| 3 |
Veolia | Water Techveoliawatertechnologies.com
Provides global water technology expertise, ensuring performance, sustainability, and resource protection for communities and industries through advanced solutions and services. |
13,064 | |||
| 4 |
BNP Paribas - Securities Servicescib.bnpparibas
Provides multi-asset post-trade, asset servicing solutions to financial market participants, corporates, and issuers, with an extensive global custody network. |
6,196 | |||
| 5 |
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 | |||
| 6 | 5,125 | ||||
| 7 |
ACTION CONTRE LA FAIMactioncontrelafaim.org
Non-governmental organization saving lives by preventing, detecting, and treating under-nutrition during emergencies and promoting health and food security worldwide. |
4,264 | |||
| 8 |
ALDI Francealdi.fr
A leading European retail company with over 1300 stores and 16,000 employees in France, part of a larger network spanning 8 European countries |
3,792 | |||
| 9 |
Snop - Groupe FSDsnop.eu
Designs, develops, and manufactures metal parts, assemblies, stamping dies, and automatic presses for cars and commercial vehicles. |
2,770 | |||
| 10 |
Heppnerheppner-group.com
Specialist in international transport and logistics solutions across Europe and globally, offering efficient overland, sea, and air deliveries for over 10,000 clients. |
2,489 | |||
| 11 |
Guerbetguerbet.com
Global leader in medical imaging, offering pharmaceutical products, medical devices, and AI-driven solutions for diagnostic and interventional imaging. Focus on innovation. |
2,478 | |||
| 12 |
Médecins du Mondemedecinsdumonde.org
Caring for vulnerable populations, advocating for health access, denouncing human rights violations, and improving health policies across 40 countries. |
2,351 | |||
| 13 |
Radiallradiall.com
Manufactures interconnect components for aerospace, defense, industrial, medical, railway, and telecom industries worldwide, with facilities on three continents. |
1,898 | |||
| 14 | 1,634 | ||||
| 15 |
Petit Forestier Grouppetitforestiergroup.com
Specializes in refrigerated vehicle and container rental, providing sustainable cold chain solutions with global presence and personalized full service. |
1,621 | |||
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 |
BERGERAT MONNOYEURbm-cat.com
Exclusive distributor of CATERPILLAR construction equipment in multiple countries, known for professionalism, shared values, and serving major international Public Works groups |
1,552 | |||
| 17 |
Groupe Institut de Soudureisgroupe.com
Provides joining technology services, testing, inspection, and training worldwide, supporting design, manufacturing, and maintenance with safety and quality focus. |
1,262 | |||
| 18 |
Sergent Majorsergent-major.com
Leading French retailer in children's ready-to-wear and childcare, offering creative, quality, and affordable products for children, babies, and expecting mothers. |
1,130 | |||
| 19 |
CGR Internationalcgr-international.com
Global company specializing in co-engineering and serial production of mechanical-end mechatronic components through cold transformation and overmolding of metal, with a focus on quality and supply chain efficiency |
980 | |||
| 20 | 944 | ||||
| 21 |
Groupe VILAVIvilavi.fr
Expert insurance and credit broker, proposing tailored solutions at the best price and supporting clients from analysis to project completion. |
916 | |||
| 22 |
GEH - Groupe Europe Handlinggeh.aero
Provides innovative, efficient airport services, encompassing passenger and baggage handling, ground support, traffic operations, cargo management, and maintenance for airlines worldwide since 1994. |
911 | |||
| 23 |
Simplon.cosimplon.co
Simplon aims to promote digital inclusion by training diverse talents in high-demand technical skills, with a focus on underrepresented groups and career changers |
850 | |||
| 24 |
DHL Express Francedhlexpress.fr
Global leader in international express transport providing carbon-conscious logistics, parcel delivery, and supply chain solutions for business and individual customers through extensive networks. |
828 | |||
| 25 |
Solutions30 Francesolutions30.com
The company provides technological solutions to individuals and businesses in Europe in areas such as IT, telecom, energy, connected devices, security, and facility management |
695 | |||
| 26 | 684 | ||||
| 27 |
ARKANCEarkance.world
Provides digital transformation solutions and expert services for architecture, engineering, construction, and manufacturing industries, optimizing design, build, and manufacturing processes. |
679 | |||
| 28 |
Du Pareil Au Mêmedpam.com
Specializing in children's clothing, this company founded in 1986 distributes clothes, shoes, and accessories for babies and children up to 14 years old in over 21 countries |
677 | |||
| 29 | 592 | ||||
| 30 |
vente-unique.comvente-unique.com
Online retailer specializing in direct sales of furniture and home decor across multiple European countries with competitive pricing and quality control. |
574 | |||
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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 11, 2026.
More company lists in the Seine-Saint-Denis department
- The largest companies in the Seine-Saint-Denis department 1,293
- Companies with in-house R&D in the Seine-Saint-Denis department 102
- Retail chains in the Seine-Saint-Denis department 101
- Public sector organisations in the Seine-Saint-Denis department 91
- Distributors and wholesalers in the Seine-Saint-Denis department 81
- IT services companies in the Seine-Saint-Denis department 79
- IT Services and IT Consulting companies in the Seine-Saint-Denis department 78
- Manufacturers in the Seine-Saint-Denis department 72
- Professional services firms in the Seine-Saint-Denis department 71
- Education providers in the Seine-Saint-Denis department 69
- Hardware manufacturers in the Seine-Saint-Denis department 58
- Critical infrastructure operators in the Seine-Saint-Denis department 53
- Government Administration companies in the Seine-Saint-Denis department 53
- Family-owned companies in the Seine-Saint-Denis department 50
- Consulting firms in the Seine-Saint-Denis department 44
- Companies with a mobile app in the Seine-Saint-Denis department 44
- Construction companies in the Seine-Saint-Denis department 44
- Logistics companies in the Seine-Saint-Denis department 40
- Professional Training and Coaching companies in the Seine-Saint-Denis department 39
- Advertising Services companies in the Seine-Saint-Denis department 37
- SaaS companies in the Seine-Saint-Denis department 37
- Civic and Social Organizations companies in the Seine-Saint-Denis department 36
- Environmental Services companies in the Seine-Saint-Denis department 36
- Software Development companies in the Seine-Saint-Denis department 35
The same list elsewhere in France
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- Multinational companies in Bourgogne-Franche-Comté 220
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