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The 100 largest public sector organisations in the world

Tamtam tracks 18,493 public sector organisations worldwide. This list ranks the 100 largest by number of employees on LinkedIn, led by US Army, NHS and United States Air Force. Their median headcount is 37,844. Half of them were founded in 1922 or later. The most common headquarters are Paris (10), Jakarta (4) and London (4).

🌍 World100 companiesUpdated Nov 12, 2026

This selection of public sector organizations includes national armed forces, government administrations, and large public service providers. Notable entities include the US Army, which provides land dominance; the NHS, offering comprehensive healthcare services in the UK; and aramco, a major energy and chemicals producer. The list also features educational institutions like the University of California and financial services providers such as the State Bank of India.

A clear pattern is the global representation, with organizations headquartered in cities like Arlington, London, Washington, Dhahran, and Mumbai. Government administration and armed forces are prominent sectors, indicating a focus on national security and public service delivery across various countries.

#CompanyIndustryHeadquarters EmployeesFounded
1
US Armyusarmybasic.com

Providing prompt, sustained land dominance across full military operations spectrum, supporting combatant commanders in national defense and warfare.

Armed Forces 🇺🇸 Arlington 367,627 1775
2
NHSwww.nhs.uk

It provides comprehensive healthcare services to UK residents, employing over 1.5 million staff and ensuring free access at the point of use.

Food and Beverage Services 🇬🇧 252,871 1948
3
United States Air Forceairforce.com

Protects interests through air and space superiority, conducting global attacks, rapid mobility, precision engagement, information dominance, and agile combat support across multiple dimensions.

Defense and Space Manufacturing 🇺🇸 Randolph AFB 243,929 1947
4
UK Civil Servicegov.uk

This company implements government policies, delivering essential public services in the UK

Government Administration 🇬🇧 London 238,504 n/a
5
U.S. Department of Veterans Affairsva.gov

Recruitment of skilled employees dedicated to providing respectful and appropriate care and support services for United States veterans.

Government Administration 🇺🇸 Washington 202,010 1930
6
aramcoaramco.com

A leading producer of energy and chemicals, providing uninterrupted supply around the globe and working towards a low carbon economy

Oil and Gas 🇸🇦 Dhahran 170,467 n/a
7
United States Postal Serviceusps.com

Delivers mail and packages to over 157 million addresses nationwide, connecting every American, every door, every business, everywhere, funded by sales, not tax dollars.

Government Administration 🇺🇸 Washington 159,003 n/a
8
University of Californiajobs.universityofcalifornia.edu

Educating top minds, advancing research, engaging communities, supporting economy, improving health, protecting environment, and driving innovation across California.

Higher Education 🇺🇸 Oakland 152,503 n/a
9
US Navynavy.mil

This company is responsible for protecting America at sea, defending freedom, preserving prosperity, and keeping the seas open and free

Armed Forces 🇺🇸 Washington 150,748 n/a
10
Ministère de l'Éducation nationaleeducation.gouv.fr

Oversees primary to higher education, universities, public research, youth affairs, and sometimes sports and community life in France.

Government Administration 🇫🇷 Paris 131,027 n/a
11
State Bank of Indiabank.in

Leading public sector bank with extensive branch network, offering specialized financial services to corporates, SMEs, NRIs, and retail customers.

Banking 🇮🇳 Mumbai 122,721 n/a
12
Education nationale

Management and oversight of public education, development of educational policies, and support for schools and teachers nationwide.

Education 🇫🇷 Paris 113,899 2000
13
Brazilian Army (Exército Brasileiro)eb.mil.br

The company's mission is to contribute to national sovereignty, maintain law and order, safeguard national interests, and support social welfare through military preparedness

Armed Forces 🇧🇷 Brasília 103,485 1648
14
I work for NSWiworkfor.nsw.gov.au

Government departments and agencies providing essential services including health, education, housing, transport, and infrastructure across New South Wales.

Government Administration 🇦🇺 Sydney 97,651 n/a
15
The California State Universitycalstate.edu

Leading higher education system in California with 23 campuses, offering quality, affordable education and producing job-ready graduates for the workforce

Higher Education 🇺🇸 Long Beach 93,821 n/a
16
EDFedf.fr

builds a net-zero energy future with electricity, innovative solutions, and services, to help save the planet and drive wellbeing and economic development.

Electric Power Generation 🇫🇷 Paris 93,235 n/a
17
PT Pertamina (Persero)pertamina.com

Engaged in integrated energy sectors, including upstream, midstream, downstream, and renewable energy, with over 50 years of experience.

Oil and Gas 🇮🇩 Jakarta 80,882 1957
18
Life Insurance Corporation of Indialicindia.in

Provides diverse life insurance products including health, pension, ULIPs, group schemes, and micro insurance with extensive agent network.

Insurance 🇮🇳 Mumbai 73,235 n/a
19
Banco do Brasilbb.com.br

A Brazilian bank focusing on sustainability, supporting agriculture and small businesses, investing in sports, and striving for efficiency to benefit current and future generations

Banking 🇧🇷 70,586 1808
20
Servicio Nacional de Aprendizaje (SENA)sena.edu.co

A national establishment in Colombia offering free technical training and job placement services to enhance competitiveness and employment opportunities for individuals

Higher Education 🇨🇴 Bogotá 61,960 n/a
21
Groupe SNCFgroupe-sncf.com

A global leader in public transportation offering train services, passenger solutions, ticket booking, and mobility options through five divisions

Rail Transportation 🇫🇷 La Plaine Saint-Denis 60,749 1938
22
CAIXAcaixa.gov.br

Serving all of Brazil, our mission is centered around you Helping individuals with financial needs through our website Visit caixagovbr

Financial Services 🇧🇷 Brasília 59,741 1861
23
State of Minnesotamn.gov

Employs over 50,000 people across 100+ agencies, impacting Minnesotans through policy, safety, environment, and social services statewide.

Government Administration 🇺🇸 Saint Paul 59,508 n/a
24
NHS Englandengland.nhs.uk

This organization collaborates with NHS Improvement to enhance care delivery, transparency, and services for patients in England while prioritizing efficiency and accountability

Hospitals and Health Care 🇬🇧 London 59,120 2012
25
EU Careers by EPSOeu-careers.europa.eu

Selection of talented candidates for various EU institutions through competitions, facilitating recruitment of professionals and graduates for European civil service.

Staffing and Recruiting 🇧🇪 Brussels 58,380 2002
26
Petrobraspetrobras.com.br

The company aims to provide ethical, safe, and competitive energy solutions while focusing on sustainability, environmental responsibility, and employee well-being

Oil and Gas 🇧🇷 Rio de Janeiro 56,267 n/a
27
La Poste Groupelapostegroupe.com

International postal services provider delivering parcels globally while managing banking, insurance, digital trust solutions, and essential public services through a vast physical network.

Transportation, Logistics, Supply Chain and Storage 🇫🇷 Paris 56,037 n/a
28
DP Worlddpworld.com

Global company operating ports, terminals, marine services, logistics, and technology to create efficient, innovative end-to-end supply chain solutions worldwide.

Transportation, Logistics, Supply Chain and Storage 🇦🇪 Dubai 53,790 n/a
29
France Travailfrancetravail.fr

It is a major player in the French employment market, helping job seekers find work and supporting companies with recruitment needs.

Government Administration 🇫🇷 Paris 52,056 n/a
30
ADNOC Groupadnoc.ae

World's leading energy producer, operating across the hydrocarbon value chain, from exploration to refining and petrochemicals, catalyzing Abu Dhabi's growth.

Oil and Gas 🇦🇪 Abu Dhabi 50,898 1971
31
PT Bank Rakyat Indonesia (Persero) Tbkbri.co.id

Provides comprehensive banking services through extensive branch and digital networks, supporting economic growth and serving diverse Indonesian communities.

Banking 🇮🇩 Jakarta 49,693 1895
32
UNICEFunicef.org

The organization works globally to support the most vulnerable children, saving lives, defending rights, and promoting overall well-being for all

Non-profit Organizations 🇺🇸 New York 48,886 1946
33
Sparkassesparkasse.de

A reliable bank providing personalized financial solutions and expertise for both personal and business customers, supporting success in all financial matters

Financial Services 🇩🇪 Berlin 47,973 n/a
34
Sonatrachsonatrach.com

This Algerian government-owned company exploits hydrocarbon resources, covering all aspects of the oil and gas industry chain: upstream, midstream, and downstream operations.

Oil and Gas 🇩🇿 Hydra 47,510 1963
35
Alberta Health Servicesalbertahealthservices.ca

providing accessible, sustainable, patient-focused health services to over 4.5 million people across Alberta with dedicated professionals

Hospitals and Health Care 🇨🇦 Edmonton 46,248 2008
36
PT Bank Mandiri (Persero) Tbk.bankmandiri.co.id

Provides diverse financial services including commercial banking, investment banking, insurance, Sharia banking, microfinance, and multi-finance through subsidiaries.

Banking 🇮🇩 Jakarta 45,866 1998
37
PEMEXpemex.com

A leading Mexican company in the oil industry, involved in exploration, production, distribution, and petrochemicals Major contributor to the country's economy and social development

Oil and Gas 🇲🇽 Mexico City 45,692 1938
38
The World Bankworldbank.org

A global institution providing financial and technical assistance to developing countries to reduce poverty and promote sustainable development across various sectors

International Trade and Development 🇺🇸 Washington 44,863 1944
39
Poste Italianeposte.it

Largest Italian postal and parcel delivery network, financial services through BancoPosta, and leading life insurance and asset management provider.

Transportation, Logistics, Supply Chain and Storage 🇮🇹 Rome 42,974 n/a
40
Eskom Holdings SOC Ltdeskom.co.za

A leading power utility in South Africa, with a significant presence in electricity generation, transportation, and distribution on the African continent

Utilities 🇿🇦 Johannesburg 42,862 1923
41
BBCbbc.co.uk

Leading public service broadcaster, creates impartial, independent, distinctive, world-class programmes and content; informs, educates, entertains millions globally.

Broadcast Media Production and Distribution 🇬🇧 London 42,697 1922
42
China Life Insurance Co.Ltdchinalife.com.cn

A large state-owned financial and insurance group with subsidiaries in life insurance, asset management, property & casualty insurance, pension plans, and e-commerce

Insurance 🇨🇳 Beijing 42,345 n/a
43
Indian Oil Corp Limitediocl.com

Leading energy company specializing in oil refining, distribution, and marketing, ranked among the world's largest corporations globally.

Oil and Gas 🇮🇳 New Delhi 41,695 1959
44
PETRONASpetronas.com

Leading global energy company, committed to powering society’s progress responsibly. Explores, develops, produces hydrocarbons and cleaner energy solutions, focusing on sustainability and net zero.

Oil and Gas 🇲🇾 Kuala Lumpur 40,244 1974
45
University of Michiganumich.edu

A prestigious institution dedicated to excellence in knowledge, art, and leadership development, serving Michigan and the world for the greater good

Higher Education 🇺🇸 Ann Arbor 39,204 1817
46
SABICsabic.com

Global leader in chemicals creating innovative solutions for various industries including automotive, electronics, construction, and clean energy to help customers succeed

Chemical Manufacturing 🇸🇦 Riyadh 38,934 1976
47
Greater Paris University Hospitals - AP-HPaphp.fr

Manages 39 university hospitals in Greater Paris, treating 8 million people annually through consultations, emergencies, and hospitalizations, providing public healthcare around the clock.

Hospitals and Health Care 🇫🇷 Paris 38,756 1849
48
Leonardoleonardo.com

Defense and security multinational company specializing in aerospace, cybersecurity, military systems, and advanced technology solutions

Defense and Space Manufacturing 🇮🇹 Rome 38,521 1948
49
Chicago Public Schoolscps.edu

Provides education to over 340,000 students across more than 600 schools, focusing on college, career, and life readiness.

Education Administration Programs 🇺🇸 Chicago 38,314 1837
50
Ministère de la Défensedefense.gouv.fr

Ensures national territory protection, population safety, supports international defense agreements, and assists other ministries in public service missions.

Government Administration 🇫🇷 Paris 37,844 n/a

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51
Escola Estadualescolaestadualfidelisreis.blogspot.com

A primary/secondary education company located in Uberaba, Brazil, providing educational services to students in the local area

Primary and Secondary Education 🇧🇷 Uberaba 37,198 n/a
52
Bank of Barodabank.in

A top Public Sector Bank with a global presence, offering a wide range of financial products and services to customers worldwide since 1908

Banking 🇮🇳 Mumbai 36,046 n/a
53
Correioscorreios.com.br

A Brazilian organization providing accessible and reliable solutions to connect people, institutions, and businesses, with a focus on ethics, meritocracy, and sustainability

Government Administration 🇧🇷 Brasília 35,918 n/a
54
Health Service Executivehse.ie

Provides safe, high quality health and personal social services to the population of Ireland, aiming for a healthier nation with valued healthcare.

Hospitals and Health Care 🇲🇽 Dublin 34,791 2005
55
British Armymod.uk

The British Army offers opportunities for personal growth, adventure, training, and camaraderie, with a focus on making a difference and building lifelong bonds

Armed Forces 🇬🇧 Andover 34,120 n/a
56
Gendarmerie Nationalelinktr.ee

A military institution ensuring security and peace, protecting citizens and their property, conducting judicial police, assisting people, and maintaining order

Security and Investigations 🇫🇷 Issy-les-Moulineaux 33,955 n/a
57
Groupe Caisse des Dépôtscaissedesdepots.fr

Long-term investor supporting business development while respecting patrimonial interests, contributing to economic modernization and financial code compliance.

Government Administration 🇫🇷 Paris 33,532 1816
58
PT. BANK NEGARA INDONESIA (Persero) Tbk.bni.co.id

A national bank established in 1946, offering integrated financial services and products through a wide network with subsidiaries in various sectors

Banking 🇮🇩 Jakarta 33,140 1946
59
Indian Railwaysgov.in

State-owned national transporter responsible for rail transport in India, operated by the Government of India through the Ministry of Railways Third largest railway network globally

Truck Transportation 🇮🇳 New Delhi 33,129 n/a
60
SENAedu.co

Official training institution established in 1957, funded by a payroll tax, focused on achieving social and economic goals for Colombia

Education Administration Programs 🇨🇴 32,386 1957
61
YPFypf.com

Largest oil and gas producer in Argentina, leading projects to become a world-class unconventional company and global energy exporter by 2031.

Oil and Gas 🇦🇷 Buenos Aires 32,363 1922
62
Enieni.com

Integrated energy business, decarbonized products, renewable and retail, bio-refineries, biomethane, low-carbon energy, mobility services.

Oil and Gas 🇮🇹 Rome 32,259 n/a
63
University of Washingtonwashington.edu

Public research university offering diverse educational programs, extensive campuses, cultural activities, and high-quality medical care, engaging with communities.

Higher Education 🇺🇸 Seattle 32,106 n/a
64
Penn State Universitypsu.edu

Providing interdisciplinary education and resources across multiple campuses, fostering student success and positive global community impact through knowledge and experience.

Higher Education 🇺🇸 University Park 31,986 1855
65
GEODISgeodis.com

Leading global logistics provider recognized for its supply chain expertise; specializes in freight forwarding, contract logistics, and transport across 170 countries.

Transportation, Logistics, Supply Chain and Storage 🇫🇷 Levallois-Perret 31,434 1904
66
University of Floridaufl.edu

A major public research university in Florida with established programs in international education, research, and service, founded in 1853

Higher Education 🇺🇸 Gainesville 31,315 n/a
67
UK Ministry of Defencegov.uk

The company works to protect the security and interests of the United Kingdom, providing necessary training, equipment, and support for the Armed Forces

Defense and Space Manufacturing 🇬🇧 London 30,901 n/a
68
University of Wisconsin-Madisonwisc.edu

A prestigious public university in Madison, offering a wide range of liberal arts studies, professional programs, and student activities on a sprawling campus

Higher Education 🇺🇸 Madison 30,836 n/a
69
The Ohio State Universityosu.edu

Large public university offering extensive research opportunities and multiple regional campuses, serving as a model for Ohio's higher education system.

Higher Education 🇺🇸 Columbus 30,775 1870
70
Texas A&M Universitytamu.edu

Public university offering diverse research, military officer training, athletics, and hosting presidential library with strong community values and hospitality.

Higher Education 🇺🇸 College Station 30,552 1876
71
PKO Bank Polskipkobp.pl

Leading bank in Poland offering retail, corporate, and investment services with a focus on customer needs, quality service, and comprehensive financial solutions

Banking 🇵🇱 Warsaw 30,000 1919
72
Arizona State Universityasu.edu

Public research university focused on student success, groundbreaking research, community impact, and extensive alumni network across multiple campuses.

Higher Education 🇺🇸 Tempe 29,921 1885
73
Indian Oil Corporation Limited

A national oil company in India involved in the entire hydrocarbon value chain, including refining, transportation, marketing, exploration, production, and petrochemicals

Oil and Gas 🇮🇳 Mumbai 29,849 n/a
74
Indiana Universityiu.edu

Public university system with nine campuses across Indiana, providing diverse educational opportunities and community engagement throughout the state.

Higher Education 🇺🇸 Bloomington 29,726 n/a
75
UCLAucla.edu

A renowned public research university offering diverse academic programs in a picturesque campus location within a thriving global city

Higher Education 🇺🇸 Los Angeles 29,540 1919
76
Ministère de l'Intérieurinterieur.gouv.fr

A professional entity offering a wide range of services, connecting individuals and businesses with valuable resources and opportunities for growth and development

Government Administration 🇫🇷 Paris 29,424 n/a
77
National Bank of Egypt (NBE)nbe.com.eg

Leading commercial bank in Egypt with extensive branch network, international presence, supporting national economy, offering diverse financial services and advanced training.

Banking 🇪🇬 Boulak 29,310 1898
78
University of Torontodefygravitycampaign.utoronto.ca

Leading Canadian university focused on research, innovation, and global education to address pressing societal challenges and prepare students for success

Higher Education 🇨🇦 Toronto 28,832 n/a
79
Assurance Maladieassurance-maladie.ameli.fr

Guarantees universal rights and healthcare access, supports health preservation, and enhances system efficiency through a national network of dedicated collaborators. Collective responsibility.

Government Administration 🇫🇷 Paris 28,726 n/a
80
The National Institutes of Healthnih.gov

Largest public funder of biomedical research investing billions annually to improve health, reduce illness, and support medical breakthroughs worldwide.

Biotechnology Research 🇺🇸 Bethesda 28,537 1887
81
Deutsche Bahndeutschebahn.com

International provider of mobility and logistics services in 130 countries, designing and operating future transport networks, connecting people and markets with innovative solutions

Rail Transportation 🇩🇪 Berlin 28,448 n/a
82
Ferrovie dello Stato Italiane S.p.A.fsitaliane.it

National rail infrastructure management, passenger transport services, logistics solutions, and urban regeneration projects across Italy.

Facilities Services 🇮🇹 Rome 28,071 n/a
83
Network Railnetworkrail.co.uk

Managing and modernising Britain's railway infrastructure to ensure safe, reliable transport for passengers and freight, supporting economic growth.

Rail Transportation 🇬🇧 Milton Keynes 28,033 n/a
84
University of Minnesotatwin-cities.umn.edu

Offers a vast array of baccalaureate, master's, and doctoral degrees across numerous fields at five campuses, providing extensive education and outreach.

Higher Education 🇺🇸 Minneapolis and St. Paul 28,030 1851
85
Transnet SOC Ltdtransnet.net

Management of ports, rail, and pipelines to support South Africa's economic growth through infrastructure modernization and strategic partnerships.

Transportation, Logistics, Supply Chain and Storage 🇿🇦 Johannesburg 27,696 1850
86
University of Missouri Systemumsystem.edu

A prestigious public research institution in Missouri, promoting education, research, and service to serve the state, nation, and beyond

Higher Education 🇺🇸 Columbia 26,615 n/a
87
PT PLN (Persero)pln.co.id

Sole provider of electricity in Indonesia, striving to improve service quality, with a long history and significant assets in the industry

Utilities 🇺🇸 Jakarta Selatan 26,545 1945
88
NTPC Limitedntpc.co.in

India's largest power generation utility, operating across fossil fuels, hydro, nuclear, and renewable energy sources, with a diversified portfolio including consultancy and training services

Real Estate 🇮🇳 New Delhi 26,494 1975
89
University of Buenos Airesuba.ar

Public university offering extensive undergraduate and postgraduate programs, renowned for academic excellence and significant research contributions in Argentina.

Higher Education 🇦🇷 Buenos Aires 26,362 1821
90
Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbHgiz.de

Provides international cooperation for sustainable development and education, helping shape a future worth living worldwide, with over 50 years of experience.

International Trade and Development 🇩🇪 Bonn 26,333 n/a
91
The University of Texas at Austinutexas.edu

A prestigious public university with a large campus, diverse academic programs, and a significant number of students, faculty, and staff

Higher Education 🇺🇸 Austin 26,268 1883
92
Michigan State Universitymsu.edu

Leading global public university offering over 400 academic programs, fostering education, research, and community engagement with Spartan spirit.

Higher Education 🇺🇸 East Lansing 26,149 1855
93
Purdue Universitypurdue.edu

Major research university offering top programs in science, engineering, pharmacy, business, and agriculture with diverse global student community.

Higher Education 🇺🇸 West Lafayette 25,360 1869
94
Punjab National Bankbank.in

A national bank founded to further India's economic interests, providing services through a technology-driven approach to millions of customers nationwide for over 122 years

Banking 🇮🇳 New Delhi 25,265 1894
95
The University of British Columbiaubc.ca

a global center for research and teaching, consistently ranked among the top 20 public universities worldwide.

Higher Education 🇨🇦 Vancouver 25,036 n/a
96
Canara Bankbank.in

Leading Indian bank with extensive geographical reach, diverse clientele, consistent profitability, and a century-long history of growth and innovation.

Banking 🇮🇳 24,793 1906
97
University of Illinois Urbana-Champaignillinois.edu

Leading public university with strong focus on education, research, global student opportunities, faculty innovation, and significant economic and community impact.

Higher Education 🇺🇸 Champaign 24,692 n/a
98
Enedisenedis.fr

They manage the public electricity distribution network across most of France, with nearly 39,000 employees maintaining and expanding the 13 million km network

Utilities 🇫🇷 Puteaux 24,479 n/a
99
Region Hovedstadensecurity-check.regionh.dk

The organization focuses on healthcare, improving quality of life, and saving lives through a diverse range of opportunities for employees

Hospitals and Health Care 🇧🇭 Hillerod 24,126 n/a
100
University of California, Berkeleyberkeley.edu

Public research university offering diverse academic programs, fostering innovation, and serving as a flagship institution in California.

Higher Education 🇺🇸 Berkeley 24,082 1868

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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.

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