# 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).

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.

🌍 World · 100 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [US Army](https://www.tamtam.ai/c/us-army) (usarmybasic.com)<br>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 | [NHS](https://www.tamtam.ai/c/nhs) (www.nhs.uk)<br>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 Force](https://www.tamtam.ai/c/united-states-air-force) (airforce.com)<br>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 Service](https://www.tamtam.ai/c/uk-civil-service) (gov.uk)<br>This company implements government policies, delivering essential public services in the UK | Government Administration | 🇬🇧 London | 238,504 |  |
| 5 | [U.S. Department of Veterans Affairs](https://www.tamtam.ai/c/u-s-department-of-veterans-affairs) (va.gov)<br>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 | [aramco](https://www.tamtam.ai/c/aramco) (aramco.com)<br>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 |  |
| 7 | [United States Postal Service](https://www.tamtam.ai/c/united-states-postal-service) (usps.com)<br>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 |  |
| 8 | [University of California](https://www.tamtam.ai/c/university-of-california) (jobs.universityofcalifornia.edu)<br>Educating top minds, advancing research, engaging communities, supporting economy, improving health, protecting environment, and driving innovation across California. | Higher Education | 🇺🇸 Oakland | 152,503 |  |
| 9 | [US Navy](https://www.tamtam.ai/c/us-navy) (navy.mil)<br>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 |  |
| 10 | [Ministère de l'Éducation nationale](https://www.tamtam.ai/c/ministere-de-l-education-nationale) (education.gouv.fr)<br>Oversees primary to higher education, universities, public research, youth affairs, and sometimes sports and community life in France. | Government Administration | 🇫🇷 Paris | 131,027 |  |
| 11 | [State Bank of India](https://www.tamtam.ai/c/state-bank-of-india) (bank.in)<br>Leading public sector bank with extensive branch network, offering specialized financial services to corporates, SMEs, NRIs, and retail customers. | Banking | 🇮🇳 Mumbai | 122,721 |  |
| 12 | [Education nationale](https://www.tamtam.ai/c/education-nationale)<br>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)](https://www.tamtam.ai/c/brazilian-army-exercito-brasileiro) (eb.mil.br)<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 NSW](https://www.tamtam.ai/c/i-work-for-nsw) (iworkfor.nsw.gov.au)<br>Government departments and agencies providing essential services including health, education, housing, transport, and infrastructure across New South Wales. | Government Administration | 🇦🇺 Sydney | 97,651 |  |
| 15 | [The California State University](https://www.tamtam.ai/c/the-california-state-university) (calstate.edu)<br>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 |  |
| 16 | [EDF](https://www.tamtam.ai/c/edf-paris) (edf.fr)<br>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 |  |
| 17 | [PT Pertamina (Persero)](https://www.tamtam.ai/c/pt-pertamina-persero) (pertamina.com)<br>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 India](https://www.tamtam.ai/c/life-insurance-corporation-of-india) (licindia.in)<br>Provides diverse life insurance products including health, pension, ULIPs, group schemes, and micro insurance with extensive agent network. | Insurance | 🇮🇳 Mumbai | 73,235 |  |
| 19 | [Banco do Brasil](https://www.tamtam.ai/c/banco-do-brasil) (bb.com.br)<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)](https://www.tamtam.ai/c/servicio-nacional-de-aprendizaje-sena) (sena.edu.co)<br>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 |  |
| 21 | [Groupe SNCF](https://www.tamtam.ai/c/groupe-sncf) (groupe-sncf.com)<br>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 | [CAIXA](https://www.tamtam.ai/c/caixa) (caixa.gov.br)<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 Minnesota](https://www.tamtam.ai/c/state-of-minnesota) (mn.gov)<br>Employs over 50,000 people across 100+ agencies, impacting Minnesotans through policy, safety, environment, and social services statewide. | Government Administration | 🇺🇸 Saint Paul | 59,508 |  |
| 24 | [NHS England](https://www.tamtam.ai/c/nhs-england) (england.nhs.uk)<br>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 EPSO](https://www.tamtam.ai/c/eu-careers-by-epso) (eu-careers.europa.eu)<br>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 | [Petrobras](https://www.tamtam.ai/c/petrobras) (petrobras.com.br)<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 |  |
| 27 | [La Poste Groupe](https://www.tamtam.ai/c/la-poste-groupe) (lapostegroupe.com)<br>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 |  |
| 28 | [DP World](https://www.tamtam.ai/c/dp-world) (dpworld.com)<br>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 |  |
| 29 | [France Travail](https://www.tamtam.ai/c/france-travail) (francetravail.fr)<br>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 |  |
| 30 | [ADNOC Group](https://www.tamtam.ai/c/adnoc-group) (adnoc.ae)<br>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) Tbk](https://www.tamtam.ai/c/pt-bank-rakyat-indonesia-persero-tbk) (bri.co.id)<br>Provides comprehensive banking services through extensive branch and digital networks, supporting economic growth and serving diverse Indonesian communities. | Banking | 🇮🇩 Jakarta | 49,693 | 1895 |
| 32 | [UNICEF](https://www.tamtam.ai/c/unicef) (unicef.org)<br>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 | [Sparkasse](https://www.tamtam.ai/c/sparkasse) (sparkasse.de)<br>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 |  |
| 34 | [Sonatrach](https://www.tamtam.ai/c/sonatrach) (sonatrach.com)<br>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 Services](https://www.tamtam.ai/c/alberta-health-services) (albertahealthservices.ca)<br>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.](https://www.tamtam.ai/c/pt-bank-mandiri-persero-tbk) (bankmandiri.co.id)<br>Provides diverse financial services including commercial banking, investment banking, insurance, Sharia banking, microfinance, and multi-finance through subsidiaries. | Banking | 🇮🇩 Jakarta | 45,866 | 1998 |
| 37 | [PEMEX](https://www.tamtam.ai/c/pemex) (pemex.com)<br>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 Bank](https://www.tamtam.ai/c/the-world-bank-group) (worldbank.org)<br>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 Italiane](https://www.tamtam.ai/c/poste-italiane) (poste.it)<br>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 |  |
| 40 | [Eskom Holdings SOC Ltd](https://www.tamtam.ai/c/eskom-holdings-soc-ltd) (eskom.co.za)<br>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 | [BBC](https://www.tamtam.ai/c/bbc) (bbc.co.uk)<br>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.Ltd](https://www.tamtam.ai/c/china-life-insurance-co-ltd) (chinalife.com.cn)<br>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 |  |
| 43 | [Indian Oil Corp Limited](https://www.tamtam.ai/c/indian-oil-corp-limited) (iocl.com)<br>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 | [PETRONAS](https://www.tamtam.ai/c/petronas) (petronas.com)<br>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 Michigan](https://www.tamtam.ai/c/university-of-michigan) (umich.edu)<br>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 | [SABIC](https://www.tamtam.ai/c/sabic) (sabic.com)<br>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-HP](https://www.tamtam.ai/c/greater-paris-university-hospitals-ap-hp) (aphp.fr)<br>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 | [Leonardo](https://www.tamtam.ai/c/leonardo) (leonardo.com)<br>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 Schools](https://www.tamtam.ai/c/chicago-public-schools) (cps.edu)<br>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 Défense](https://www.tamtam.ai/c/ministere-de-la-defense) (defense.gouv.fr)<br>Ensures national territory protection, population safety, supports international defense agreements, and assists other ministries in public service missions. | Government Administration | 🇫🇷 Paris | 37,844 |  |
| 51 | [Escola Estadual](https://www.tamtam.ai/c/escola-estadual) (escolaestadualfidelisreis.blogspot.com)<br>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 |  |
| 52 | [Bank of Baroda](https://www.tamtam.ai/c/bank-of-baroda) (bank.in)<br>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 |  |
| 53 | [Correios](https://www.tamtam.ai/c/correios) (correios.com.br)<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 |  |
| 54 | [Health Service Executive](https://www.tamtam.ai/c/health-service-executive) (hse.ie)<br>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 Army](https://www.tamtam.ai/c/british-army) (mod.uk)<br>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 |  |
| 56 | [Gendarmerie Nationale](https://www.tamtam.ai/c/gendarmerie-nationale) (linktr.ee)<br>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 |  |
| 57 | [Groupe Caisse des Dépôts](https://www.tamtam.ai/c/groupe-caisse-des-depots) (caissedesdepots.fr)<br>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.](https://www.tamtam.ai/c/pt-bank-negara-indonesia-persero-tbk) (bni.co.id)<br>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 Railways](https://www.tamtam.ai/c/indian-railways) (gov.in)<br>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 |  |
| 60 | [SENA](https://www.tamtam.ai/c/sena) (edu.co)<br>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 | [YPF](https://www.tamtam.ai/c/ypf) (ypf.com)<br>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 | [Eni](https://www.tamtam.ai/c/eni) (eni.com)<br>Integrated energy business, decarbonized products, renewable and retail, bio-refineries, biomethane, low-carbon energy, mobility services. | Oil and Gas | 🇮🇹 Rome | 32,259 |  |
| 63 | [University of Washington](https://www.tamtam.ai/c/university-of-washington) (washington.edu)<br>Public research university offering diverse educational programs, extensive campuses, cultural activities, and high-quality medical care, engaging with communities. | Higher Education | 🇺🇸 Seattle | 32,106 |  |
| 64 | [Penn State University](https://www.tamtam.ai/c/penn-state-university) (psu.edu)<br>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 | [GEODIS](https://www.tamtam.ai/c/geodis) (geodis.com)<br>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 Florida](https://www.tamtam.ai/c/university-of-florida) (ufl.edu)<br>A major public research university in Florida with established programs in international education, research, and service, founded in 1853 | Higher Education | 🇺🇸 Gainesville | 31,315 |  |
| 67 | [UK Ministry of Defence](https://www.tamtam.ai/c/uk-ministry-of-defence) (gov.uk)<br>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 |  |
| 68 | [University of Wisconsin-Madison](https://www.tamtam.ai/c/university-of-wisconsin-madison) (wisc.edu)<br>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 |  |
| 69 | [The Ohio State University](https://www.tamtam.ai/c/the-ohio-state-university) (osu.edu)<br>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 University](https://www.tamtam.ai/c/texas-a-and-m-university) (tamu.edu)<br>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 Polski](https://www.tamtam.ai/c/pko-bank-polski) (pkobp.pl)<br>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 University](https://www.tamtam.ai/c/arizona-state-university) (asu.edu)<br>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](https://www.tamtam.ai/c/indian-oil-corporation-limited)<br>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 |  |
| 74 | [Indiana University](https://www.tamtam.ai/c/indiana-university) (iu.edu)<br>Public university system with nine campuses across Indiana, providing diverse educational opportunities and community engagement throughout the state. | Higher Education | 🇺🇸 Bloomington | 29,726 |  |
| 75 | [UCLA](https://www.tamtam.ai/c/ucla) (ucla.edu)<br>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'Intérieur](https://www.tamtam.ai/c/ministere-de-l-interieur) (interieur.gouv.fr)<br>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 |  |
| 77 | [National Bank of Egypt (NBE)](https://www.tamtam.ai/c/national-bank-of-egypt-nbe) (nbe.com.eg)<br>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 Toronto](https://www.tamtam.ai/c/university-of-toronto) (defygravitycampaign.utoronto.ca)<br>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 |  |
| 79 | [Assurance Maladie](https://www.tamtam.ai/c/assurance-maladie) (assurance-maladie.ameli.fr)<br>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 |  |
| 80 | [The National Institutes of Health](https://www.tamtam.ai/c/the-national-institutes-of-health) (nih.gov)<br>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 Bahn](https://www.tamtam.ai/c/deutsche-bahn) (deutschebahn.com)<br>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 |  |
| 82 | [Ferrovie dello Stato Italiane S.p.A.](https://www.tamtam.ai/c/ferrovie-dello-stato-italiane-s-p-a) (fsitaliane.it)<br>National rail infrastructure management, passenger transport services, logistics solutions, and urban regeneration projects across Italy. | Facilities Services | 🇮🇹 Rome | 28,071 |  |
| 83 | [Network Rail](https://www.tamtam.ai/c/network-rail) (networkrail.co.uk)<br>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 |  |
| 84 | [University of Minnesota](https://www.tamtam.ai/c/university-of-minnesota) (twin-cities.umn.edu)<br>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 Ltd](https://www.tamtam.ai/c/transnet-soc-ltd) (transnet.net)<br>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 System](https://www.tamtam.ai/c/university-of-missouri-system) (umsystem.edu)<br>A prestigious public research institution in Missouri, promoting education, research, and service to serve the state, nation, and beyond | Higher Education | 🇺🇸 Columbia | 26,615 |  |
| 87 | [PT PLN (Persero)](https://www.tamtam.ai/c/pt-pln-persero) (pln.co.id)<br>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 Limited](https://www.tamtam.ai/c/ntpc-limited) (ntpc.co.in)<br>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 Aires](https://www.tamtam.ai/c/university-of-buenos-aires) (uba.ar)<br>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) GmbH](https://www.tamtam.ai/c/deutsche-gesellschaft-fur-internationale-zusammenarbeit-giz-gmbh) (giz.de)<br>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 |  |
| 91 | [The University of Texas at Austin](https://www.tamtam.ai/c/the-university-of-texas-at-austin) (utexas.edu)<br>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 University](https://www.tamtam.ai/c/michigan-state-university) (msu.edu)<br>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 University](https://www.tamtam.ai/c/purdue-university) (purdue.edu)<br>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 Bank](https://www.tamtam.ai/c/punjab-national-bank) (bank.in)<br>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 Columbia](https://www.tamtam.ai/c/the-university-of-british-columbia) (ubc.ca)<br>a global center for research and teaching, consistently ranked among the top 20 public universities worldwide. | Higher Education | 🇨🇦 Vancouver | 25,036 |  |
| 96 | [Canara Bank](https://www.tamtam.ai/c/canara-bank) (bank.in)<br>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-Champaign](https://www.tamtam.ai/c/university-of-illinois-urbana-champaign) (illinois.edu)<br>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 |  |
| 98 | [Enedis](https://www.tamtam.ai/c/enedis) (enedis.fr)<br>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 |  |
| 99 | [Region Hovedstaden](https://www.tamtam.ai/c/region-hovedstaden) (security-check.regionh.dk)<br>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 |  |
| 100 | [University of California, Berkeley](https://www.tamtam.ai/c/university-of-california-berkeley) (berkeley.edu)<br>Public research university offering diverse academic programs, fostering innovation, and serving as a flagship institution in California. | Higher Education | 🇺🇸 Berkeley | 24,082 | 1868 |

## 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.

## More company lists in the world

- [The largest companies in the world](https://www.tamtam.ai/l/largest-companies-in-the-world) (415,122)
- [Multinational companies in the world](https://www.tamtam.ai/l/multinational-companies-in-the-world) (74,925)
- [Manufacturers in the world](https://www.tamtam.ai/l/manufacturers-in-the-world) (39,579)
- [Retail chains in the world](https://www.tamtam.ai/l/retail-chains-in-the-world) (35,499)
- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,346)
- [Financial services firms in the world](https://www.tamtam.ai/l/financial-services-firms-in-the-world) (26,817)
- [Professional services firms in the world](https://www.tamtam.ai/l/professional-services-firms-in-the-world) (24,737)
- [Education providers in the world](https://www.tamtam.ai/l/education-companies-in-the-world) (23,937)
- [IT Services and IT Consulting companies in the world](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-the-world) (23,571)
- [Critical infrastructure operators in the world](https://www.tamtam.ai/l/critical-infrastructure-operators-in-the-world) (23,312)
- [SaaS companies in the world](https://www.tamtam.ai/l/saas-companies-in-the-world) (22,459)
- [IT services companies in the world](https://www.tamtam.ai/l/it-services-companies-in-the-world) (20,934)
- [Software Development companies in the world](https://www.tamtam.ai/l/software-development-companies-in-the-world) (20,534)
- [Hardware manufacturers in the world](https://www.tamtam.ai/l/hardware-companies-in-the-world) (20,159)
- [Financial Services companies in the world](https://www.tamtam.ai/l/financial-services-companies-in-the-world) (19,958)
- [Companies with a mobile app in the world](https://www.tamtam.ai/l/companies-with-mobile-app-in-the-world) (18,922)
- [Healthcare providers in the world](https://www.tamtam.ai/l/healthcare-providers-in-the-world) (16,037)
- [Consulting firms in the world](https://www.tamtam.ai/l/consulting-firms-in-the-world) (16,009)
- [Family-owned companies in the world](https://www.tamtam.ai/l/family-owned-companies-in-the-world) (14,667)
- [Distributors and wholesalers in the world](https://www.tamtam.ai/l/distributors-and-wholesalers-in-the-world) (13,470)
- [Hospitals and Health Care companies in the world](https://www.tamtam.ai/l/hospitals-and-health-care-companies-in-the-world) (12,916)
- [Corporate groups and holding companies in the world](https://www.tamtam.ai/l/holding-companies-in-the-world) (12,864)
- [E-commerce companies in the world](https://www.tamtam.ai/l/ecommerce-companies-in-the-world) (12,013)
- [Higher Education companies in the world](https://www.tamtam.ai/l/higher-education-companies-in-the-world) (11,756)

## The same list elsewhere

- [Public sector organisations in Europe](https://www.tamtam.ai/l/public-sector-organisations-in-europe) (8,568)
- [Public sector organisations in North America](https://www.tamtam.ai/l/public-sector-organisations-in-north-america) (5,041)
- [Public sector organisations in the United States](https://www.tamtam.ai/l/public-sector-organisations-united-states) (4,149)
- [Public sector organisations in France](https://www.tamtam.ai/l/public-sector-organisations-france) (4,006)
- [Public sector organisations in Asia](https://www.tamtam.ai/l/public-sector-organisations-in-asia) (2,206)
- [Public sector organisations in Latin America](https://www.tamtam.ai/l/public-sector-organisations-in-latin-america) (1,301)
- [Public sector organisations in India](https://www.tamtam.ai/l/public-sector-organisations-india) (877)
- [Public sector organisations in Germany](https://www.tamtam.ai/l/public-sector-organisations-germany) (812)
- [Public sector organisations in the United Kingdom](https://www.tamtam.ai/l/public-sector-organisations-united-kingdom) (801)
- [Public sector organisations in Africa](https://www.tamtam.ai/l/public-sector-organisations-in-africa) (723)
- [Public sector organisations in Canada](https://www.tamtam.ai/l/public-sector-organisations-canada) (699)
- [Public sector organisations in Brazil](https://www.tamtam.ai/l/public-sector-organisations-brazil) (584)
- [Public sector organisations in the Middle East](https://www.tamtam.ai/l/public-sector-organisations-in-the-middle-east) (442)
- [Public sector organisations in Italy](https://www.tamtam.ai/l/public-sector-organisations-italy) (392)
- [Public sector organisations in Indonesia](https://www.tamtam.ai/l/public-sector-organisations-indonesia) (360)
- [Public sector organisations in China](https://www.tamtam.ai/l/public-sector-organisations-china) (357)
- [Public sector organisations in Spain](https://www.tamtam.ai/l/public-sector-organisations-spain) (356)
- [Public sector organisations in Australia](https://www.tamtam.ai/l/public-sector-organisations-australia) (326)
- [Public sector organisations in the Netherlands](https://www.tamtam.ai/l/public-sector-organisations-netherlands) (312)
- [Public sector organisations in Turkey](https://www.tamtam.ai/l/public-sector-organisations-turkey) (227)
- [Public sector organisations in Switzerland](https://www.tamtam.ai/l/public-sector-organisations-switzerland) (213)
- [Public sector organisations in Sweden](https://www.tamtam.ai/l/public-sector-organisations-sweden) (205)
- [Public sector organisations in Mexico](https://www.tamtam.ai/l/public-sector-organisations-mexico) (193)
- [Public sector organisations in Belgium](https://www.tamtam.ai/l/public-sector-organisations-belgium) (187)

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Source: https://www.tamtam.ai/l/public-sector-organisations-in-the-world