The largest companies in Seine-Saint-Denis are primarily significant employers in public services, environmental management, and transportation. These include major national entities and large subsidiaries, alongside a few substantial private sector firms. The list features established organizations, many of which have a long operational history.
Key companies include Veolia, which specializes in environmental services like water, waste, and energy solutions; SNCF Réseau, managing national railway infrastructure; AFPA, a leading professional training organization; and GRDF, which operates Europe's largest gas distribution network. A notable pattern is the concentration of headquarters in cities such as Aubervilliers, Saint-Denis, and Montreuil, indicating these areas as major business hubs within the department.
| # | 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 Réseausncf-reseau.fr
public entity managing national railway infrastructure, unifying previous services, ensuring clear governance, and coordinating with railway operator SNCF Mobilités. |
23,115 | |||
| 3 | 19,244 | ||||
| 4 |
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 | |||
| 5 |
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 | |||
| 6 | 7,313 | ||||
| 7 |
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 | |||
| 8 |
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 | |||
| 9 | 5,125 | ||||
| 10 |
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 | |||
| 11 |
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 | |||
| 12 |
Conseil départemental de la Seine-Saint-Denisseinesaintdenis.fr
The company works to create opportunities for local economic development, ensuring that residents benefit from job initiatives and new actions |
3,255 | |||
| 13 |
ACOSSlinkedin.com
A national organization supports employers and entrepreneurs by advising, informing, and streamlining services, ensuring social protection financing, and promoting responsibility, solidarity, and equity |
3,000 | |||
| 14 |
Snop - Groupe FSDsnop.eu
Designs, develops, and manufactures metal parts, assemblies, stamping dies, and automatic presses for cars and commercial vehicles. |
2,770 | |||
| 15 |
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 | |||
| 16 |
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 | |||
| 17 |
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 | |||
| 18 |
Agence Régionale de Santé Ile-de-Francelinktr.ee
Implements regional health policy, covering prevention, care, and medico-social support, developed in consultation with professionals and users for efficiency and transparency. |
2,332 | |||
| 19 |
SPIE Facilitiesspie.fr
Maintenance of buildings and facilities across France, focusing on energy performance, technical expertise, and sustainable facility management services. |
2,066 | |||
| 20 |
Université Sorbonne Paris Norduniv-spn.fr
A multidisciplinary university located in the northern region of Île-de-France, with campuses in Villetaneuse, Saint-Denis, La Plaine Saint-Denis, Bobigny, and Argenteuil |
2,033 | |||
| 21 |
Radiallradiall.com
Manufactures interconnect components for aerospace, defense, industrial, medical, railway, and telecom industries worldwide, with facilities on three continents. |
1,898 | |||
| 22 |
cabinet d'avocatsavocat-cisse.fr
Generalist legal firm providing educational, personal, and transparent counsel to individuals and businesses for the dedicated defense of their specific legal interests. |
1,832 | |||
| 23 |
Groupe Star's Servicegroupestarservice.com
Provides specialized urban logistics with 25 years experience, focusing on cold chain, healthcare, and lifestyle products, offering home deliveries and e-commerce solutions within specific timeframes. |
1,824 | |||
| 24 | 1,677 | ||||
| 25 |
Lapeyrelapeyre.fr
Manufacturer of kitchens, bathrooms, windows, doors, stairs, and storage solutions, supporting clients with renovation projects from start to finish with 90 years of expertise |
1,641 | |||
| 26 | 1,634 | ||||
| 27 |
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 | |||
| 28 |
Université Paris 8univ-paris8.fr
A leading university in Paris, specializing in Arts, Literature, Social Sciences, and Humanities, providing students with tools to understand and engage with the contemporary world |
1,594 | |||
| 29 | 1,581 | ||||
| 30 |
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 | |||
| 31 |
Randstad Francerandstad.fr
This company offers tailored recruitment and HR management solutions, connecting businesses with talent for various sectors including industry, IT, engineering, and finance. |
1,511 | |||
| 32 |
Urssaf Caisse nationaleurssaf.org
Collects contributions from employers, self-employed, and employees to fund social benefits like healthcare, hospitals, and public transport, supporting economic and social development. |
1,470 | |||
| 33 |
SPIE Building Solutions (France)spie.fr
Specializing in reducing building carbon footprint through intelligent solutions and expertise, this organization promotes safer, connected, comfortable, and high-performing buildings |
1,415 | |||
| 34 |
Société des grands projetssocietedesgrandsprojets.fr
Development and management of decarbonized transport projects including new metro lines and regional express services to improve daily mobility. |
1,367 | |||
| 35 |
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 | |||
| 36 |
Orange Storeorange-store.com
A subsidiary of Orange Group, Orange Store operates in telecom sector with mobile/internet services and physical retail stores, emphasizing customer service and teamwork |
1,257 | |||
| 37 |
NAF NAFnafnaf.com
Designing and selling chic fashion with a touch of madness, empowering girls with freedom and style since 45 years. |
1,217 | |||
| 38 |
Université Paris 8 Vincennes-Saint-Denisuniv-paris8.fr
Higher education institution specializing in cultural sciences, hosting over 21,000 students, numerous research teams, and doctoral schools in Paris. |
1,177 | |||
| 39 |
Urssaf Ile-de-Francelasecurecrute.fr
Collection and redistribution of social security contributions ensuring workers' social protection and supporting entrepreneurs with compliance and service. |
1,142 | |||
| 40 |
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 | |||
| 41 |
Université Paris 13univ-spn.fr
Higher education institution offering diverse academic programs across four main campuses located in northern Île-de-France region. |
1,049 | |||
| 42 |
Paris 2024 - Comité d'organisation des Jeux Olympiques et Paralympiques de 2024olympics.com
The company plans, organizes, finances, and delivers the Paris 2024 Olympic and Paralympic Games, promotes them internationally, and ensures their sustainability and positive impact |
1,037 | |||
| 43 |
Plaine Communeplainecommune.fr
A territory in the Greater Paris region undergoing significant transformation, known for culture, creativity, and hosting events like Paris 2024 Keep updated on social media |
1,017 | |||
| 44 |
Auchan Bagnoletauchan.fr
Large scale retail establishment providing various consumer goods and grocery products through a local hypermarket facility located in the Bagnolet area. |
986 | |||
| 45 |
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 | |||
| 46 |
Randstad Inhouserandstad.fr
Providing dedicated onsite HR teams to industrial companies, managing recruitment, flexibility, and productivity to meet production goals efficiently. |
972 | |||
| 47 |
Herta Franceherta.fr
Company sells charcuterie and ready-meal products in self-service, with strong brand presence in 90% of French households. |
952 | |||
| 48 | 944 | ||||
| 49 |
UNION TECHNIQUE DU BATIMENTutb.fr
Construction company specializing in building projects, providing construction services and solutions in Pantin, Seine Saint Denis, France. |
929 | |||
| 50 |
Groupe VILAVIvilavi.fr
Expert insurance and credit broker, proposing tailored solutions at the best price and supporting clients from analysis to project completion. |
916 | |||
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. | |||||
| 51 |
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 | |||
| 52 |
Groupe Randstad Francegrouperandstad.fr
Specialist in HR services, offering recruitment, integration, management, training, and mobility solutions to companies and candidates, with a strong focus on shaping the world of work |
903 | |||
| 53 |
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 | |||
| 54 |
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 | |||
| 55 |
Ville de Montreuilmontreuil.fr
Local government providing public services and employment opportunities for residents in a densely populated urban area in Île-de-France. |
823 | |||
| 56 |
e.SNCF Solutionslinkedin.com
Digital factory supporting SNCF Group with cybersecurity, digital workplace, connectivity, application development, data, AI, and innovation labs. |
801 | |||
| 57 |
BWT Francebwt.com
A subsidiary of BWT, specializing in water treatment solutions for domestic, public, and industrial sectors, with a focus on innovation and eco-friendly practices |
769 | |||
| 58 | 764 | ||||
| 59 |
Cuisine Pluscuisine-plus.fr
The company specializes in custom kitchens, offering over 80 models and 10,000 color combinations, with a focus on customer satisfaction and franchise opportunities |
727 | |||
| 60 |
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 | |||
| 61 |
Académie de La Réunionac-reunion.fr
Administrative district managing regional educational policies and coordination between national education ministry and local government authorities in La Réunion region. |
690 | |||
| 62 | 684 | ||||
| 63 |
ARKANCEarkance.world
Provides digital transformation solutions and expert services for architecture, engineering, construction, and manufacturing industries, optimizing design, build, and manufacturing processes. |
679 | |||
| 64 |
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 | |||
| 65 |
ESIEE PARISesiee.fr
Offers engineering education in IT, security, AI, Industry 4.0, electronics, energy, civil engineering, digital health, and arts and sciences. |
670 | |||
| 66 |
Ville de Saint-Denisville-saint-denis.fr
Local government providing public services, supporting daily life and personal projects for approximately 115,000 residents in Saint-Denis. |
666 | |||
| 67 |
Orange Bankorangeobk.fr
A rapidly evolving digital and human-centric bank, part of Orange group, seeking diverse talents to launch the first 100% mobile bank |
665 | |||
| 68 |
Protection Civile françaiseprotection-civile.org
Volunteer organization providing civil protection through assistance, emergency response, and training to safeguard populations during peace and crises. |
658 | |||
| 69 | 645 | ||||
| 70 |
Groupe Delineofranchise-delineo.fr
This company is a merger between Rush group and La Croissanterie group, combining resources and expertise for enhanced business operations |
638 | |||
| 71 |
FranceAgriMerfranceagrimer.fr
A national establishment under the French Ministry for Agriculture, providing economic expertise, market monitoring, and strategic support for the agriculture and sea sectors |
636 | |||
| 72 |
POPEYE
Restaurant company based in France, operating at 2 locations Providing a diverse menu of dishes in a casual dining atmosphere |
631 | |||
| 73 |
EXTIMEextime.com
Luxury retail and hospitality brand offering travelers a unique airport experience with dining, shopping, lounges, concierge services, and entertainment options |
629 | |||
| 74 | 624 | ||||
| 75 |
SNCF Voyageurs Matérielsncf-voyageurs.com
Manages maintenance for nearly 17,000 rolling stock units. Provides high-level industrial performance, ensuring safety, quality, and technical expertise for internal and external clients. |
606 | |||
| 76 |
Mairie de Saint Denissaintdenis.re
Established in 1669, this company became the capital of the island in 1738 with a population of 2,166 Today, it is the largest city overseas with nearly 150,000 residents spread across over 140 km², ranging from 0 to 2276 meters in altitude |
604 | |||
| 77 | 592 | ||||
| 78 |
Ville de Pantinpantin.fr
A dynamic and creative city near Paris, Pantin preserves its industrial heritage while attracting businesses, artisans, and cultural institutions, fostering excellence and solidarity |
582 | |||
| 79 |
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 | |||
| 80 |
Emmaüs Franceemmaus-france.org
Fighting poverty and exclusion since 1949, operating a pioneer circular and solidarity economy, through various social action and housing structures. |
554 | |||
| 81 |
Cour nationale du droit d'asile (CNDA)cnda.fr
Specialized administrative court in France responsible for reviewing asylum decisions and appeals against the decisions of the French Office for Refugees and Stateless Persons |
549 | |||
| 82 |
Mutuaidemutuaide.fr
Specializing in affinity services for 40 years, this company offers assistance, insurance, and services for travel, mobility, health, daily life, and event medicalization |
530 | |||
| 83 |
DB Cargo Francedbcargo.com
Provides diverse rail freight solutions from single wagons to full trains, including combined transport across France and to bordering countries for various goods. |
527 | |||
| 84 |
SJT - Solidarité et Jalons pour le Travailsjt-formation.com
A professional training operator since 1979, specializing in assisting young and adult learners with job placement, recognized regionally and nationally Holder of the Social Utility Solidarity Enterprise label |
526 | |||
| 85 |
DASSAULT FALCON SERVICEdassaultfalconservice.com
Expert in business aviation since 1967, offering maintenance, management, technical, and flight services for Falcon business jets in Europe. |
522 | |||
| 86 |
Economat des arméeseconomat-armees.com
Central purchasing and service provider supporting defense administrative units with food supply, collective catering, general goods, transport, and camp management. |
521 | |||
| 87 |
ICTS FRANCEictsfrance.fr
Provides aviation and airport security, general safety, training, audit, and consulting services across multiple high-value sectors in France. |
520 | |||
| 88 |
Empruntisempruntis.com
Established in 2000, Empruntiscom offers a range of financial products like mortgages, consumer loans, credit restructuring, and insurance, working with numerous partners nationwide |
516 | |||
| 89 |
BATISANTÉbatisante.fr
BATISANTÉ protects 100,000 properties in France against fire, pests, regulatory risks, and breakdowns, simplifying life for real estate professionals with expert services Visit batisantefr for more information |
516 | |||
| 90 | 511 | ||||
| 91 |
GROUPE CORIANCEgroupe-coriance.fr
Providing high-performance and cost-effective energy solutions while minimizing environmental impact, specializing in renewable energy sources like geothermal, biomass, and cogeneration |
509 | |||
| 92 |
La Brosse & Dupontlabrosseetdupont.fr
A leading company in designing, distributing, and marketing a wide range of household products worldwide through 18 structured brands |
492 | |||
| 93 |
Mairie d'Aubervilliersaubervilliers.fr
Local government managing public services and urban development for a dynamic city with over 92,000 residents and 1800 employees. |
489 | |||
| 94 |
CMPcmp-paris.com
Designs, supplies, and imports over 7,000 personal and household products across multiple categories, serving clients in France and 75 countries. |
489 | |||
| 95 | 471 | ||||
| 96 |
Grand Paris Expressgrandparisexpress.fr
Public organization creating the new Grand Paris automated metro, responsible for designing, developing, and building the network's infrastructure and stations |
454 | |||
| 97 |
Crédit Agricole La Réunion - Mayottecredit-agricole.fr
A mutual bank supporting individuals, professionals, farmers, and associations with their projects in Réunion and Mayotte for over 72 years |
442 | |||
| 98 |
CAMAScamastraining.com
Training airport and aviation professionals worldwide with over 250 courses in ground handling, safety, management, and customer service. |
441 | |||
| 99 |
Extime Duty Free Paris
Leading airport retail operator offering premium shopping experiences with diverse brands, excellent design, and personalized customer service at airports. |
439 | |||
| 100 |
Veolia | Engineering & Consultingengineering-consulting.veolia.com
Consulting engineering and strategic assistance division specializing in designing sustainable solutions for public, industrial, and tertiary sectors, focusing on resource management and performance improvement |
436 | |||
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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 Nov 11, 2026.
More company lists in the Seine-Saint-Denis department
- Multinational companies in the Seine-Saint-Denis department 198
- 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
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- 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
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