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Top 100 public sector organisations in Grand Est

Tamtam tracks 361 public sector organisations headquartered in Grand Est. This list ranks the 100 largest by number of employees on LinkedIn, led by RATPgroup, France Télévisions and Armée de l’air et de l’espace. Their median headcount is 578. Half of them were founded in 1966 or later. The most common headquarters are Strasbourg (18), Metz (8) and Nancy (8).

🇫🇷 Grand Est100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
RATPgroupratpgroup.com

Design, operation, and maintenance of global urban transport networks including metro, tram, and bus services across fifteen countries for twelve million daily passengers.

Urban Transit Services 🇫🇷 Paris 20,736 1949
2
France Télévisionsrecrutement.francetelevisions.fr

Leading French broadcasting group. Provides television programs to nearly 4 out of 10 French people daily. Public service with social and cultural role.

Broadcast Media Production and Distribution 🇫🇷 Paris 12,382 2000
3
Armée de l’air et de l’espacedevenir-aviateur.fr

Recruitment and training of military personnel in aviation-related fields including cybersecurity, telecommunications, engineering, mechanics, HR, and security.

Defense and Space Manufacturing 🇫🇷 11,710 1934
4
INSERMinserm.fr

Research institute conducting studies on various diseases, from common to rare, through biological, medical, and public health research efforts.

Research Services 🇫🇷 Paris 7,814 1964
5
European Space Agency - ESAesa.int

Coordinates member resources for space capability development, ensuring benefits for European and global citizens through ambitious space programs.

Space Research and Technology 🇫🇷 Paris 7,016 1975
6
Universite de Lorraineuniv-lorraine.fr

Leading campus in France, promoting knowledge sharing from basic to humanities, creating interdisciplinary ecosystems to drive innovation, economic and social development Offering diverse academic fields

Higher Education 🇫🇷 Nancy 6,783 2012
7
University of Strasbourgunistra.fr

Research and education in life sciences, health, chemistry, physics, humanities, fostering innovation and partnerships with socio-economic sectors.

Higher Education 🇫🇷 Strasbourg 5,938 n/a
8
Sécurité socialelasecurecrute.fr

Provides universal social protection through family allowances, health insurance, retirement pensions, disability support, and social contribution collection in France.

Government Administration 🇫🇷 5,417 1945
9
Council of Europecoe.int

Promotes democratic principles and protects human rights across 46 European countries based on the European Convention on Human Rights.

International Affairs 🇫🇷 Strasbourg 3,638 n/a
10
CHRU de Strasbourg - Hôpitaux Universitaires de Strasbourgchru-strasbourg.fr

Provides comprehensive medical services across six specialized hospitals and three logistics sites focusing on surgery, obstetrics, orthopedics, and diverse clinical treatments.

Hospitals and Health Care 🇫🇷 Strasbourg 3,268 n/a
11
Département du Nordlenord.fr

Provides diverse public sector jobs focusing on local community proximity, professional development, and decentralized service delivery across territories.

Government Administration 🇫🇷 3,132 n/a
12
Direction générale des douanes et droits indirects (DGDDI)douane.gouv.fr

French administration managing land and maritime borders while regulating trade flows and supporting businesses to ensure economic sovereignty and national security.

Government Administration 🇫🇷 Montreuil 2,892 n/a
13
CHRU de Nancychru-nancy.fr

Provides comprehensive medical-surgical care for all ages, conducts biomedical research, trains health professionals, and significantly contributes to the regional economy and employment.

Hospitals and Health Care 🇫🇷 Nancy 2,571 1883
14
Université de Reims Champagne-Ardenneuniv-reims.fr

Develops scientific projects in agri-sciences, health, digital sciences, and humanities. Provides diverse training programs, focusing on future socio-economic needs, student excellence.

Higher Education 🇫🇷 Reims 2,487 n/a
15
Cnavlassuranceretraite.fr

Management of public retirement system with digital services, supporting insured individuals through retirement preparation and ongoing retirement assistance.

Government Administration 🇫🇷 2,396 1967
16
Région Grand Estlinktr.ee

Dynamic, competitive, and innovative regional government in Grand Est, supporting priorities such as employment, digital technology, youth, territories, mobility, and Europe Follow on social media

Government Administration 🇫🇷 Strasbourg 1,979 n/a
17
Hôpital sainte anneghu-paris.fr

Provides access to employment opportunities within hospital settings, specifically listing available positions on a dedicated job platform.

Hospitals and Health Care 🇫🇷 1,901 n/a
18
CNEDcned.fr

A public institution providing education and training to ensure academic and professional success for all individuals, regardless of their circumstances

E-Learning Providers 🇫🇷 1,870 1939
19
Ville de Bordeauxbordeaux.fr

Provides municipal services, urban planning, cultural events, public administration, and community support for residents and businesses in Bordeaux.

Government Administration 🇫🇷 1,783 n/a
20
Ifremerifremer.fr

An organization conducting research on oceans, marine environment, and sustainable maritime activities, providing knowledge, innovation, and expertise for public policy and socio-economic activities

Research Services 🇫🇷 1,703 1984
21
CHR Metz-Thionvillechr-metz-thionville.fr

Operates multiple hospitals, mother-child centers, psychiatric facilities, and nursing homes across Metz and Thionville, serving a large population.

Hospitals and Health Care 🇫🇷 Ars-Laquenexy 1,666 1977
22
Régie des Transports de Marseillertm.fr

operation of metro, tramway, and bus lines serving Marseille and neighboring communities, managing public transportation infrastructure and services

Truck Transportation 🇫🇷 Marseille 1,664 1986
23
CHU de Reimschu-reims.fr

A leading hospital center in Reims offering high-quality healthcare, education, and research services in various medical specialties, with a focus on collaboration and innovation

Hospitals and Health Care 🇫🇷 Reims 1,412 n/a
24
Université Bordeaux Montaigne (ex - Bordeaux 3)u-bordeaux-montaigne.fr

Educates students, conducts research in arts, languages, humanities, and social sciences, promoting humanistic values and intellectual debate.

Higher Education 🇫🇷 Pessac 1,381 1970
25
Academie Nancy-Metzac-nancy-metz.fr

Regional public education authority managing schools, teachers, and educational policies in Nancy-Metz area, ensuring quality education delivery.

Government Administration 🇫🇷 Nancy 1,318 n/a
26
Département des alpes maritimesdepartement06.fr

Management of social services, infrastructure, education, culture, transport, local development, and additional optional domains like employment and environment.

Government Administration 🇫🇷 1,216 n/a
27
Département des Bouches-du-Rhônedepartement13.fr

The company operates as a local government authority in Bouches-du-Rhône, providing essential services, infrastructure development, and support to residents and communities

Government Administration 🇫🇷 Marseille 1,181 1790
28
EPS Ville Evrardeps-ville-evrard.fr

Mental institution takes care of patients in northeast Paris, founded 1860, one of France's biggest hospitals with 56 sites and 110 buildings.

Hospitals and Health Care 🇫🇷 Neuilly sur Marne 1,166 1862
29
Filierisfilieris.fr

Offers diverse healthcare services including health centers, medical and paramedical facilities, home care, and medical equipment in former mining basins.

Hospitals and Health Care 🇫🇷 Paris 1,134 n/a
30
ISAE-SUPAEROisae-supaero.fr

Educates in aerospace engineering, providing a wide range of science and engineering degrees, including master's, advanced masters, doctoral, and executive programs.

Education 🇫🇷 Toulouse 1,113 2007
31
SIAAPsiaap.fr

A unique public company in Europe, providing interdepartmental wastewater treatment services for 9 million residents in the Paris metropolitan area

Government Administration 🇫🇷 1,071 1970
32
Collectivité européenne d'Alsacealsace.eu

Regional administrative entity formed by merging Haut-Rhin and Bas-Rhin councils, managing local governance and sharing news and job offers.

Government Administration 🇫🇷 Strasbourg 1,008 2021
33
Hôpitaux Champagne Sudhopitauxchampagnesud.fr

Consolidates several health establishments to offer comprehensive medical services, including general medicine, surgery, psychiatry, and long-term care, for 320,000 residents.

Hospitals and Health Care 🇫🇷 Troyes 994 2015
34
Conseil départemental de Meurthe-et-Mosellemeurthe-et-moselle.fr

Provides local governance and public services to residents, focusing on innovation, partnership, solidarity, and quality of life in Meurthe-et-Moselle.

Government Administration 🇫🇷 Nancy 958 1871
35
Hôpitaux Civils de Colmarch-colmar.fr

Public healthcare institution operating four sites in Colmar, providing general, psychiatric, maternal, and elderly care with 1400 beds.

Hospitals and Health Care 🇫🇷 Colmar 957 1937
36
Université de Haute-Alsace - UHAuha.fr

Multidisciplinary university offering diverse degree programs, strong research teams, professional training, and close socio-economic partnerships in Alsace region.

Higher Education 🇫🇷 Mulhouse 850 1975
37
Carsat Hauts-de-Francecarsat-hdf.fr

Preparation and payment of general regime retirements, prevention and pricing of occupational risks, support for insured individuals in difficulty.

Government Administration 🇫🇷 Villeneuve-d'Ascq 802 1945
38
Ile-De-France Mobilitésiledefrance-mobilites.fr

Planning, organizing, and financing public transportation across Île-de-France, coordinating multiple stakeholders to improve and modernize transit services.

Urban Transit Services 🇫🇷 800 n/a
39
Centre Psychothérapique de Nancy - CPNcpn-laxou.com

A public mental health institution established in 1597, providing mental health care, diagnosis, rehabilitation, and social reintegration for adults, children, and adolescents

Hospitals and Health Care 🇫🇷 Laxou 777 1597
40
UEMuem-metz.fr

A long-standing energy partner offering diverse services including electricity, gas, renewables, urban heating, public lighting, and utility software solutions

Renewable Energy Power Generation 🇫🇷 Metz 772 1901
41
Département de la Mosellemoselle.fr

Local government ensuring social solidarity and well-being through legal missions and voluntary policies impacting diverse community members.

Government Administration 🇫🇷 Metz 770 1982
42
Conseil départemental des Vosgesvosges.fr

Management of social services, education, territorial planning, culture, tourism, sports, and ecological transition within the Vosges region.

Government Administration 🇫🇷 Épinal 727 1982
43
Groupe Hospitalier Fondation Vallée - Paul Guiraudpsysudparis.fr

Provides public psychiatry services for adults across 11 general psychiatry sectors, serving over 920,000 inhabitants in 30 communes, with specialized care options.

Hospitals and Health Care 🇫🇷 Villejuif 685 1884
44
Garde nationaledefense.gouv.fr

A national reserve force consisting of civilian volunteers working alongside military personnel for the protection of the nation Offering training, pay, and support

Government Administration 🇫🇷 683 2016
45
Université de Haute-Alsace Mulhouse-Colmaruha.fr

It offers multidisciplinary higher education programs from undergraduate to doctorate, conducts fundamental and applied research, and fosters innovation in various scientific and humanities fields.

Higher Education 🇫🇷 Mulhouse 649 1975
46
Ville de Mulhousemulhouse.fr

Public service provider in Mulhouse, Alsace, offering a wide range of services to residents and engaging in various areas including international relations and social actions

Government Administration 🇫🇷 Mulhouse 616 n/a
47
SDIS 57 - Sapeurs-Pompiers de la Mosellesdis57.fr

The company provides emergency rescue services for over 1 million residents in Moselle, managing personnel and resources for firefighting and various risks

Public Safety 🇫🇷 Metz 609 n/a
48
INSP - Institut national du service publicinsp.gouv.fr

French public institution specializing in recruitment, initial and ongoing training for senior executives and leaders within the state administration.

Higher Education 🇫🇷 Strasbourg 595 2022
49
Ville d'Aix-en-Provenceaixenprovence.fr

Provides local government administration, public services, community development, urban planning, cultural events, and citizen support in Aix-en-Provence.

Government Administration 🇫🇷 Aix-en-Provence 581 n/a
50
City of Metzmetz.fr

The company highlights Metz's rich heritage and architecture, showcasing key historical moments and the city's contemporary art scene

Government Administration 🇫🇷 Metz 578 1761
51
Ville de Reimsreims.fr

A vibrant city with museums, parks, shops, restaurants, sports, and cultural facilities, offering an exceptional living environment for residents and visitors

Government Administration 🇫🇷 Reims 562 n/a
52
EM Strasbourg Business Schoolem-strasbourg.com

Business school offering international programs, triple accredited and integrated into a university, supported by corporate partners and a strong alumni network.

Higher Education 🇫🇷 Strasbourg 555 1919
53
CHU Guyane - Site de Cayenneght-guyane.fr

Provides comprehensive hospital health services across the territory, including specialized medical care, emergency services, surgeries, and continuous innovation in healthcare and research.

Hospitals and Health Care 🇫🇷 Cayenne 553 1992
54
EPSANch-epsan.fr

Public mental health institution providing psychiatric care, autism resources, long-term care, training, and support for disabled adults in Alsace region.

Hospitals and Health Care 🇫🇷 Brumath 540 n/a
55
Conseil Général du Bas Rhinalsace.eu

Local government body managing public policies, setting departmental directions, making decisions, and approving budgets for Bas-Rhin's development.

Government Relations Services 🇫🇷 Strasbourg 539 n/a
56
Communauté urbaine du Grand Reimsgrandreims.fr

Managing a large urban and rural territory with 300,000 inhabitants across 143 communes, balancing diverse community needs and development.

Government Administration 🇫🇷 Reims 527 n/a
57
IGBMCigbmc.fr

It is a leading European biomedical research center, focusing on interdisciplinary studies and providing advanced services and education in biomedical sciences.

Research Services 🇫🇷 519 n/a
58
DRIEAT (Direction régionale et interdépartementale Environnement-Aménagement-Transports)drieat.ile-de-france.developpement-durable.gouv.fr

The company implements state policies on transport, sustainable planning, environment, energy, and urbanism in the Île-de-France region, ensuring a balanced and cohesive development

Government Administration 🇫🇷 Paris 507 2021
59
Académie de Strasbourgac-strasbourg.fr

Management of educational institutions, personnel, budgets, and pedagogical guidance across Bas-Rhin and Haut-Rhin departments in Grand Est region.

Primary and Secondary Education 🇫🇷 Strasbourg 501 1918
60
UGECAM Nord-Estgroupe-ugecam.fr

Non-profit organization managing 32 healthcare and social structures in Lorraine and Champagne-Ardenne, specializing in rehabilitation, disability, and various medical fields

Hospitals and Health Care 🇫🇷 Nancy 482 2000
61
Institut National des Etudes Territorialesinet.cnfpt.fr

This institute provides training for top managers and future leaders of major local authorities in France, focusing on municipalities, départements, and regions

Higher Education 🇫🇷 Strasbourg 480 1997
62
CTS - COMPAGNIE DES TRANSPORTS STRASBOURGEOIScts-strasbourg.eu

urban public transport operator managing tramway network, infrastructure design, construction, financing, and delivering innovative, high-quality mobility services in Strasbourg.

Truck Transportation 🇫🇷 Strasbourg 455 1877
63
Eurométropole de Metzeurometropolemetz.eu

Provides information and updates through official website and social media channels including Facebook, Twitter, and Instagram for community engagement.

Government Administration 🇫🇷 Metz 443 n/a
64
Urssaf Lorrainelorraine.urssaf.fr

A private organization managing social security contributions, promoting employment policies, assisting with payment issues, fighting against illegal labor, and simplifying social formalities

Government Administration 🇫🇷 Metz 440 n/a
65
INSA Strasbourginsa-strasbourg.fr

Public engineering and architecture school under the Ministry of Higher Education, accredited for engineering and architecture degrees, located in Strasbourg.

Higher Education 🇫🇷 Strasbourg 438 1875
66
CENTRE HOSPITALIER LABORITch-laborit.fr

Public institution specializing in psychiatry and mental health services for the Vienne region, providing comprehensive care and support.

Hospitals and Health Care 🇫🇷 Poitiers 438 1657
67
The port of Marseille Fosmarseille-port.fr

Leading French port handling diverse goods, managing logistics, ship repair, and welcoming over two million passengers annually at its two harbors, Marseille and Fos.

Maritime Transportation 🇫🇷 Marseille 437 1966
68
Conseil départemental du Haut Rhinalsace.eu

Two regional councils in Haut-Rhin and Bas-Rhin merging to form a new entity - Collectivité européenne d'Alsace (CeA) as of January 2021

Government Relations Services 🇫🇷 Colmar 428 n/a
69
Angers Loire Métropoleangersloiremetropole.fr

Governance and administration of 31 communes in Maine-et-Loire, serving a population of 310,000 residents in urban area.

Government Administration 🇫🇷 425 n/a
70
Service d'incendie et de secours - Bas-Rhinsis67.alsace

An autonomous public institution managing professional and volunteer firefighters, focusing on prevention, protection, emergency response, and risk assessment and prevention

Government Administration 🇫🇷 Strasbourg 421 1999
71
Ville de Troyesville-troyes.fr

The city focuses on urban renewal, promoting a high quality of life with cultural events, education, green spaces, and tourism, making it an attractive destination.

Government Administration 🇫🇷 Troyes 419 n/a
72
Académie de Reimsac-reims.fr

Regional education authority overseeing educational content, organization, and representing the Ministry of National Education in Grand Est departments.

Education Administration Programs 🇫🇷 Reims 399 n/a
73
Agence Régionale de Santé Grand Estlinktr.ee

Regional Health Agency serves as a key contact point for healthcare professionals, social services, government entities, local authorities, and stakeholders, ensuring user rights and democratic consultation

Government Administration 🇫🇷 Nancy 398 2010
74
Département de l'Aubeaube.fr

The Council is involved in human solidarity and proximity missions, higher education, cultural development, sports, environment, and health.

Government Administration 🇫🇷 Troyes 396 n/a
75
Carsat Alsace-Mosellecarsat-alsacemoselle.fr

Administers retirement, prevents occupational risks, supports vulnerable individuals, and processes independent workers' pension applications in Alsace-Moselle.

Government Administration 🇫🇷 Strasbourg 393 2012
76
Centre Hospitalier de Châteauroux-Le Blancch-chateauroux.fr

Provides comprehensive medical, surgical, obstetric, psychiatric, and rehabilitation services, including home hospitalization and elderly care, across the Indre department.

Hospitals and Health Care 🇫🇷 Châteauroux 384 n/a
77
ENSM, École Nationale Supérieure Maritimesupmaritime.fr

Educates Merchant Navy Officers and Marine Engineers, covering navigation, maritime operations, and safety, with practical experience through internships and partnerships.

Higher Education 🇫🇷 Le Havre 381 1571
78
Est Ensembleest-ensemble.fr

Public territorial institution serving 406,000 residents in 9 Seine Saint-Denis municipalities as one of the 12 territories of the Grand Paris Metropolitan

Government Administration 🇫🇷 Romainville 380 2010
79
IFSTTARuniv-gustave-eiffel.fr

Public scientific, technological institution conducts applied research, expert appraisals in transport, infrastructure, natural hazards, urban issues for improved living conditions, sustainable development.

Research Services 🇫🇷 Champs-sur-Marne 370 2011
80
Carsat Nord-Estcarsat-nordest.fr

Provides retirement, social action, and occupational risk management services for employees, retirees, and businesses in Lorraine-Champagne-Ardenne.

Government Administration 🇫🇷 Nancy 359 n/a
81
CPAM du Bas-Rhin (Assurance Maladie)assurance-maladie.ameli.fr

Supports 951,000 beneficiaries with healthcare expenses, health preservation, care coordination, and enhanced protection during difficult situations, mobilizing 1,000 employees daily staff.

Government Administration 🇫🇷 Strasbourg 349 1945
82
Département de la Marnemarne.fr

Provides social services and infrastructure management including family support, elderly care, disability assistance, education, culture, sports, and tourism.

Government Relations Services 🇫🇷 Châlons-en-Champagne 347 n/a
83
Centre hospitalier de Rouffachch-rouffach.fr

A public mental health facility in Haut-Rhin, serving as a reference center for mental health services and care

Hospitals and Health Care 🇫🇷 Rouffach 345 1909
84
IMT Mines Albiimt-mines-albi.fr

French engineering school training engineers and doctors. Focus on high-level research and economic development through incubators, technopoles, and competitiveness clusters.

Higher Education 🇫🇷 Albi 337 1992
85
European Directorate for the Quality of Medicines & HealthCare (EDQM), Council of Europeedqm.eu

Providing harmonised standards for medicines in Europe, ensuring quality and availability Coordinating testing programs to support public health

Government Administration 🇫🇷 Strasbourg 334 n/a
86
Faculté des Sciences Economiques et de Gestion de Strasbourg (FSEG)ecogestion.unistra.fr

A leading academic institution in France offering a wide range of undergraduate, graduate, and doctoral programs in economics and management

Higher Education 🇫🇷 Strasbourg 330 n/a
87
Mulhouse Alsace Agglomération - m2Am2a.fr

Management of economic development, transport, education, waste collection, housing, sports, culture, and environmental sustainability in a trinational European region.

Government Administration 🇫🇷 Sausheim 325 2010
88
Centre Hospitalier Emile Durkheimch-emile-durkheim.fr

The company is a public healthcare facility in Vosges, France, dedicated to providing quality patient care and collaborating with other healthcare institutions in the region

Hospitals and Health Care 🇫🇷 Épinal 323 n/a
89
Centre Hospitalier de Martiguesch-martigues.fr

General hospital providing medical, surgical, obstetric, pediatric, and psychiatric care to support diverse patient health needs.

Hospitals and Health Care 🇫🇷 320 n/a
90
Syndicat des Eaux et de l’Assainissement Alsace-Mosellesdea.fr

The company specializes in water supply and sanitation, serving over 740,000 residents in 450+ municipalities in Bas-Rhin with a focus on local identity and sustainable performance

Environmental Services 🇫🇷 Schiltigheim - Cs 10020 314 1939
91
EPSM de la Marneepsm-marne.fr

Specialized psychiatric care for adults, children, elderly, addiction, medico-legal cases, and regional mental health support in Marne.

Hospitals and Health Care 🇫🇷 Châlons-en-Champagne 313 1834
92
Lycée René Cassinlyceecassin-strasbourg.eu

A school in Strasbourg focusing on developing students' ambition, knowledge, and skills in economics, management, and professional integration through partnerships

Education Administration Programs 🇫🇷 Strasbourg 307 n/a
93
Dynacitédynacite.fr

Management of social housing with construction, renovation, rental, and social ownership across multiple departments in Auvergne Rhône-Alpes region.

Real Estate 🇫🇷 Bourg-en-Bresse 301 1950
94
GRETA de Lorrainegreta-lorraine.fr

For over 45 years, this organization offers tailored adult education and apprenticeship programs for employees, individuals, and job seekers

Professional Training and Coaching 🇫🇷 Nancy 300 n/a
95
GH70 Groupe Hospitalier de la Haute-Saône - 4 Hôpitaux : Vesoul, Gray, Lure et Luxeuil et 13 EHPADgh70.nous-recrutons.fr

Operates four hospitals and thirteen EHPADs (nursing homes for dependent elderly people), providing comprehensive healthcare and elderly care services in the Haute-Saône region.

Hospitals and Health Care 🇫🇷 Vesoul 299 n/a
96
EuroAirport Basel-Mulhouse-Freiburgeuroairport.com

Airport serving over 8.5 million passengers with 27 airlines connecting 100+ destinations across three economically strong European regions.

Aviation and Aerospace Component Manufacturing 🇫🇷 Saint-Louis 296 n/a
97
Lycée Robert Schumanlyc-schuman-metz.monbureaunumerique.fr

A general and technological high school offering a variety of vocational training programs from secondary education to DSCG level, emphasizing on European vision and dynamism

Education Administration Programs 🇫🇷 Metz 295 1962
98
Caisse nationale de solidarité pour l'autonomiecnsa.fr

Manage social security autonomy branch, secure funding for elderly and disabled support, ensure territorial equity, assist caregivers and individuals.

Government Administration 🇫🇷 293 n/a
99
CPAM de Moselleameli.fr

Working at this company means joining a team committed to protecting the health of over 60 million insured individuals through various projects

Government Administration 🇫🇷 Metz 281 1945
100
Noréade, les Régies du SIDEN-SIANagenceenligne.noreade.fr

Management and operation of water supply, sanitation, stormwater, and fire defense services for over 730 municipalities in northern France.

Environmental Services 🇫🇷 280 1951

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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 Oct 24, 2026.

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