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The 100 largest companies in the Seine-Saint-Denis department

Tamtam tracks 1,293 companies headquartered in the Seine-Saint-Denis department. This list ranks the 100 largest by number of employees on LinkedIn, led by Veolia, SNCF Réseau and AFPA. Their median headcount is 916. Half of them were founded in 1980 or later. The most common headquarters are Saint-Denis (29), Montreuil (17) and Aubervilliers (10).

🇫🇷 Seine-Saint-Denis100 companiesUpdated Nov 11, 2026

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.

#CompanyIndustryHeadquarters EmployeesFounded
1
Veoliaveolia.com

Works to build environmental security, cleans up pollution, reduces carbon emissions, and regenerates resources through water, waste, and energy solutions.

Environmental Services 🇫🇷 Aubervilliers 50,280 1853
2
SNCF Réseausncf-reseau.fr

public entity managing national railway infrastructure, unifying previous services, ensuring clear governance, and coordinating with railway operator SNCF Mobilités.

Rail Transportation 🇫🇷 Saint-Denis 23,115 2015
3
AFPAafpa.fr

Leading adult professional training organization in France, offering a wide range of job-focused courses to help individuals gain employment and assist companies in workforce development

Professional Training and Coaching 🇫🇷 Montreuil 19,244 1946
4
SNCF Voyageurssncf-voyageurs.com

SNCF Voyageurs is a subsidiary of the SNCF Group responsible for passenger transportation on the French national railway network

Rail Transportation 🇫🇷 Saint-Denis 18,564 2020
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.

Environmental Services 🇫🇷 Aubervilliers 13,064 n/a
6
GRDFgrdf.fr

Manages Europe's largest gas distribution network, delivering natural and renewable gases to nearly 11 million customers in France, supporting energy transition.

Oil and Gas 🇫🇷 Saint-Denis 7,313 2008
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.

Financial Services 🇫🇷 Pantin 6,196 n/a
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.

Environmental Services 🇫🇷 Aubervilliers 6,110 1853
9
Quickquick.fr

Leading European hamburger fast food chain, adapting quick service to European tastes, offering varied, gourmet, and convivial dining experiences.

Restaurants 🇫🇷 Aubervilliers 5,125 1970
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.

Non-profit Organizations 🇫🇷 Montreuil 4,264 1979
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

Retail 🇫🇷 Villepinte 3,792 1988
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

Government Administration 🇫🇷 Bobigny 3,255 n/a
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

Government Administration 🇫🇷 Montreuil 3,000 n/a
14
Snop - Groupe FSDsnop.eu

Designs, develops, and manufactures metal parts, assemblies, stamping dies, and automatic presses for cars and commercial vehicles.

Motor Vehicle Manufacturing 🇫🇷 Villepinte 2,770 n/a
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.

Truck Transportation 🇫🇷 Rosny-sous-Bois 2,489 1925
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.

Pharmaceutical Manufacturing 🇫🇷 Villepinte 2,478 1926
17
Médecins du Mondemedecinsdumonde.org

Caring for vulnerable populations, advocating for health access, denouncing human rights violations, and improving health policies across 40 countries.

Non-profit Organizations 🇫🇷 Saint-Denis 2,351 1980
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.

Government Administration 🇫🇷 Saint-Denis 2,332 2010
19
SPIE Facilitiesspie.fr

Maintenance of buildings and facilities across France, focusing on energy performance, technical expertise, and sustainable facility management services.

Facilities Services 🇫🇷 Saint-Ouen-sur-Seine 2,066 2017
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

Higher Education 🇫🇷 Villetaneuse 2,033 1970
21
Radiallradiall.com

Manufactures interconnect components for aerospace, defense, industrial, medical, railway, and telecom industries worldwide, with facilities on three continents.

Appliances, Electrical, and Electronics Manufacturing 🇫🇷 Aubervilliers 1,898 1952
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.

Law Practice 🇫🇷 Bobigny 1,832 2017
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.

Consumer Services 🇫🇷 Épinay-sur-Seine 1,824 1987
24
Generali Francegenerali.fr

Protecting and ensuring the lives of individuals

Insurance 🇫🇷 Saint-Denis 1,677 1832
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

Retail 🇫🇷 Aubervilliers 1,641 1931
26
MOTULmotul.com

Formulates, produces, distributes high-quality lubricants across diverse applications, from powersports to heavy-duty industrial uses. Also expanding into vehicle care and advanced thermal fluids.

Oil and Gas 🇫🇷 Aubervilliers 1,634 1853
27
Petit Forestier Grouppetitforestiergroup.com

Specializes in refrigerated vehicle and container rental, providing sustainable cold chain solutions with global presence and personalized full service.

Equipment Rental Services 🇫🇷 Villepinte 1,621 1907
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

Higher Education 🇫🇷 Saint-Denis 1,594 1969
29
UFCVufcv.fr

Engages in community social life by deploying animation, leisure, training, inclusion, and support for engagement initiatives.

Civic and Social Organizations 🇫🇷 Pantin 1,581 1907
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

Machinery Manufacturing 🇫🇷 Saint-Denis 1,552 1906
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.

Human Resources Services 🇫🇷 Saint-Denis 1,511 1973
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.

Government Administration 🇫🇷 Montreuil 1,470 1960
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

Facilities Services 🇫🇷 Saint-Ouen-sur-Seine 1,415 2003
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.

Urban Transit Services 🇫🇷 Saint-Denis 1,367 n/a
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.

Mechanical Or Industrial Engineering 🇫🇷 Villepinte 1,262 1905
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

Telecommunications 🇫🇷 Saint-Denis 1,257 n/a
37
NAF NAFnafnaf.com

Designing and selling chic fashion with a touch of madness, empowering girls with freedom and style since 45 years.

Retail Apparel and Fashion 🇫🇷 Bondy 1,217 1973
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.

Higher Education 🇫🇷 Saint-Denis 1,177 1969
39
Urssaf Ile-de-Francelasecurecrute.fr

Collection and redistribution of social security contributions ensuring workers' social protection and supporting entrepreneurs with compliance and service.

Government Administration 🇫🇷 Montreuil 1,142 n/a
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.

Retail 🇫🇷 Montreuil 1,130 1987
41
Université Paris 13univ-spn.fr

Higher education institution offering diverse academic programs across four main campuses located in northern Île-de-France region.

Higher Education 🇫🇷 Villetaneuse 1,049 1970
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

Spectator Sports 🇫🇷 Saint-Denis 1,037 2018
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

Government Administration 🇫🇷 Saint-Denis 1,017 2000
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.

Retail Groceries 🇫🇷 Bagnolet 986 1992
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

Spring and Wire Product Manufacturing 🇫🇷 Sevran 980 1963
46
Randstad Inhouserandstad.fr

Providing dedicated onsite HR teams to industrial companies, managing recruitment, flexibility, and productivity to meet production goals efficiently.

Human Resources Services 🇫🇷 Saint-Denis 972 n/a
47
Herta Franceherta.fr

Company sells charcuterie and ready-meal products in self-service, with strong brand presence in 90% of French households.

Food and Beverage Manufacturing 🇫🇷 Noisy-le-Grand 952 n/a
48
BETCbetc.com

Innovative communication agency creating new synergies, producing own content in music, film, design Award-winning with a focus on creativity and innovation

Advertising Services 🇫🇷 Pantin 944 1994
49
UNION TECHNIQUE DU BATIMENTutb.fr

Construction company specializing in building projects, providing construction services and solutions in Pantin, Seine Saint Denis, France.

Construction 🇫🇷 Romainville 929 1933
50
Groupe VILAVIvilavi.fr

Expert insurance and credit broker, proposing tailored solutions at the best price and supporting clients from analysis to project completion.

Insurance 🇫🇷 Montreuil 916 n/a

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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.

Airlines and Aviation 🇫🇷 Tremblay-en-France 911 1994
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

Human Resources Services 🇫🇷 Saint-Denis 903 n/a
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

Professional Training and Coaching 🇫🇷 Montreuil 850 n/a
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.

Transportation, Logistics, Supply Chain and Storage 🇫🇷 Le Bourget 828 1969
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.

Government Administration 🇫🇷 Montreuil 823 n/a
56
e.SNCF Solutionslinkedin.com

Digital factory supporting SNCF Group with cybersecurity, digital workplace, connectivity, application development, data, AI, and innovation labs.

Technology, Information and Internet 🇫🇷 Saint-Denis 801 n/a
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

Industrial Machinery Manufacturing 🇫🇷 Saint-Denis 769 1990
58
UNSAunsa.org

A interprofessional union founded in 1993, promoting sustainable social progress, fighting exclusion, advocating for a social Europe, and defending employment and public services

Civic and Social Organizations 🇫🇷 Bagnolet 764 1993
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

Furniture and Home Furnishings Manufacturing 🇫🇷 Tremblay-en-France 727 1984
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

IT Services and IT Consulting 🇫🇷 Saint-Denis 695 n/a
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.

Government Administration 🇫🇷 Saint-Denis 690 1984
62
AIDESaides.org

A leading HIV/AIDS organization in France and Europe, providing support, resources, and empowerment for those affected by the virus

Non-profit Organizations 🇫🇷 Pantin 684 1984
63
ARKANCEarkance.world

Provides digital transformation solutions and expert services for architecture, engineering, construction, and manufacturing industries, optimizing design, build, and manufacturing processes.

IT Services and IT Consulting 🇫🇷 Saint-Denis 679 n/a
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

Textile Manufacturing 🇫🇷 Montreuil 677 1986
65
ESIEE PARISesiee.fr

Offers engineering education in IT, security, AI, Industry 4.0, electronics, energy, civil engineering, digital health, and arts and sciences.

Higher Education 🇫🇷 Noisy-le-Grand 670 1904
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.

Government Administration 🇫🇷 Saint-Denis 666 n/a
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

Banking 🇫🇷 Montreuil 665 2002
68
Protection Civile françaiseprotection-civile.org

Volunteer organization providing civil protection through assistance, emergency response, and training to safeguard populations during peace and crises.

Public Safety 🇫🇷 Pantin 658 1965
69
Hub Onehubone.fr

Hub One, a technology group, provides digital evolution services for businesses in various sectors They offer connectivity solutions for communication, networking, and mobility

Telecommunications 🇫🇷 Tremblay-en-France 645 2001
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

Restaurants 🇫🇷 Saint-Denis 638 2019
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

Government Administration 🇫🇷 Montreuil 636 2009
72
POPEYE

Restaurant company based in France, operating at 2 locations Providing a diverse menu of dishes in a casual dining atmosphere

Restaurants 🇫🇷 Neuilly-sur-Marne 631 n/a
73
EXTIMEextime.com

Luxury retail and hospitality brand offering travelers a unique airport experience with dining, shopping, lounges, concierge services, and entertainment options

International Trade and Development 🇫🇷 Tremblay-en-France 629 n/a
74
KDIkdi.fr

French leader in generalist distribution of metallurgical products and associated supplies with extensive stock and specialized agency network.

Wholesale 🇫🇷 Saint-Denis 624 n/a
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.

Rail Transportation 🇫🇷 Saint-Denis 606 n/a
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

Government Administration 🇫🇷 Saint-Denis 604 1669
77
PROVAprova.fr

Family-owned French company with over 75 years of expertise in extracting vanilla, cocoa, and producing natural brown flavor aromas.

Food and Beverage Manufacturing 🇫🇷 Montreuil 592 1946
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

Government Administration 🇫🇷 Pantin 582 n/a
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.

Retail Furniture and Home Furnishings 🇫🇷 Le Pré-Saint-Gervais 574 2006
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.

Civic and Social Organizations 🇫🇷 Montreuil 554 1985
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

Government Administration 🇫🇷 Montreuil 549 n/a
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

Insurance 🇫🇷 Noisy-le-Grand 530 1981
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.

Rail Transportation 🇫🇷 Aubervilliers 527 2005
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

Professional Training and Coaching 🇫🇷 Montreuil 526 1979
85
DASSAULT FALCON SERVICEdassaultfalconservice.com

Expert in business aviation since 1967, offering maintenance, management, technical, and flight services for Falcon business jets in Europe.

Airlines and Aviation 🇫🇷 Le Bourget 522 1967
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.

Defense and Space Manufacturing 🇫🇷 Pantin 521 1959
87
ICTS FRANCEictsfrance.fr

Provides aviation and airport security, general safety, training, audit, and consulting services across multiple high-value sectors in France.

Public Safety 🇫🇷 Tremblay-en-France 520 1982
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

Financial Services 🇫🇷 Saint-Denis 516 2000
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

Environmental Services 🇫🇷 Neuilly-Plaisance 516 1987
90
UCANSSucanss.fr

It is an employer federation for Social Security, managing social dialogue, offering HR, purchasing, and real estate services, and promoting innovation and efficiency for its clients.

Government Administration 🇫🇷 Montreuil 511 1970
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

Environmental Services 🇫🇷 Noisy-le-Grand 509 1998
92
La Brosse & Dupontlabrosseetdupont.fr

A leading company in designing, distributing, and marketing a wide range of household products worldwide through 18 structured brands

Manufacturing 🇫🇷 Villepinte 492 1845
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.

Government Administration 🇫🇷 Aubervilliers 489 2021
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.

Wholesale Import and Export 🇫🇷 Le Blanc-Mesnil 489 1957
95
Ville de Noisy-le-Grandnoisylegrand.fr

Local government serving a population of 70,000 residents

Government Administration 🇫🇷 Noisy-le-Grand 471 n/a
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

Urban Transit Services 🇫🇷 Saint-Denis 454 2011
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

Banking 🇫🇷 Saint-Denis 442 1950
98
CAMAScamastraining.com

Training airport and aviation professionals worldwide with over 250 courses in ground handling, safety, management, and customer service.

Professional Training and Coaching 🇫🇷 Tremblay-en-France 441 2001
99
Extime Duty Free Paris

Leading airport retail operator offering premium shopping experiences with diverse brands, excellent design, and personalized customer service at airports.

Retail 🇫🇷 Tremblay-en-France 439 n/a
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

Environmental Services 🇫🇷 Aubervilliers 436 n/a

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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.

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