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Critical infrastructure operators around the world

Tamtam tracks 23,312 critical infrastructure operators worldwide. This list ranks the 100 largest by number of employees on LinkedIn, led by DHL, UnitedHealth Group and Bank of America. Their median headcount is 97,651. The most common headquarters are London (9), New York (8) and Mumbai (7).

🌍 World100 companiesUpdated Nov 12, 2026

This selection of critical infrastructure operators includes very large groups. They are mostly active in financial services, logistics, and energy sectors. Many of these companies have a global reach, managing extensive operations and services across multiple countries. The list highlights established organizations that play a fundamental role in various economies worldwide.

Notable companies include DHL, a global leader in logistics; UnitedHealth Group, a health care and well-being company; Bank of America, a global financial institution; and VINCI Concessions, focused on mobility infrastructure. Shell is a global energy company, and HSBC operates as a global financial services organization.

#CompanyIndustryHeadquarters EmployeesFounded
1
DHLdhl.com

Global leader in logistics offering parcel delivery, e-commerce solutions, international express, and supply chain management across various industries worldwide

Transportation, Logistics, Supply Chain and Storage 🇩🇪 Bonn 590,000 n/a
2
UnitedHealth Groupunitedhealthgroup.com

Health care and well-being company focused on improving access, affordability, outcomes, and experiences through technology, data, and high-quality health benefits

Hospitals and Health Care 🇺🇸 Eden Prairie 380,000 1977
3
Bank of Americabankofamerica.com

Global financial institution providing comprehensive banking, investing, and asset management services to individuals, small businesses, and large corporations through diverse risk management products.

Banking 🇺🇸 Charlotte 304,000 n/a
4
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
5
J.P. Morganjpmorgan.com

Providing comprehensive financial services and wealth management solutions to clients worldwide, prioritizing client interests and long-term relationships.

Financial Services 🇺🇸 New York 240,000 n/a
6
Wells Fargowellsfargo.com

A diversified financial services company offering banking, investment, mortgage products, and more through numerous locations and digital platforms Serving customers globally

Financial Services 🇺🇸 San Francisco 234,570 n/a
7
JPMorganChasejpmorganchase.com

Global financial institution, managing assets and investments, offering business advice, strategies, and innovative banking solutions to diverse clients worldwide.

Financial Services 🇺🇸 New York 231,537 n/a
8
VINCI Concessionsvinci-concessions.com

A global leader in mobility infrastructure, designing, financing, building, operating, and maintaining airports, highways, and railway projects in 23 countries

Civil Engineering 🇫🇷 Nanterre 219,000 n/a
9
VINCI Airportsvinci-airports.com

Operates, develops, finances, builds airports globally, optimizing performance, modernizing infrastructure, and driving environmental transition with a net-zero emissions goal.

Airlines and Aviation 🇫🇷 Nanterre 219,000 n/a
10
HDFC Bankbank.in

Provides comprehensive financial products and services, including loans, payments, wealth management, and housing finance to individuals and businesses across India.

Banking 🇮🇳 Mumbai 213,593 1994
11
Shellshell.com

A global energy company with a focus on cleaner energy solutions, serving millions of customers through retail service stations worldwide

Oil and Gas 🇬🇧 London 208,511 n/a
12
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
13
Reliance Industries Limitedril.com

Company's activities span hydrocarbon exploration and production, petroleum refining, petrochemicals, retail, and telecommunications. Committed to innovation-led, exponential growth.

Oil and Gas 🇮🇳 Navi Mumbai 200,730 n/a
14
HSBChsbc.com

A global financial services organization with a network spanning 63 countries, serving individuals, companies, and governments, creating opportunities for customers worldwide

Financial Services 🇬🇧 London 197,879 n/a
15
AT&Tatt.com

Innovative company connecting people with technology to create a seamless, better life through network, products, services, and passionate employees

Telecommunications 🇺🇸 Dallas 193,793 n/a
16
FedExfedex.com

A global leader in shipping, transportation, e-commerce, and business services, known for exceptional customer service and a focus on safety and ethics

Freight and Package Transportation 🇺🇸 Memphis 193,709 1973
17
Comcastcomcast.com

Delivering broadband, mobile, and video products, along with entertainment, sports, news, and theme park experiences; driven by passionate creators and innovators

Telecommunications 🇺🇸 Philadelphia 189,000 1963
18
Citiciti.com

A global financial institution with 200 years of experience providing services like asset safeguarding, lending, payments, and capital market access

Financial Services 🇺🇸 New York 188,351 1812
19
ICICI Bankbank.in

Provides diverse banking products and services to individuals, SMEs, and corporates through branches, ATMs, mobile, internet, and phone channels.

Banking 🇮🇳 Mumbai 181,145 n/a
20
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
21
UPSups.com

A global transportation and logistics company with a strong social impact, offering innovative solutions and opportunities for job seekers worldwide

Truck Transportation 🇺🇸 Atlanta 168,435 1907
22
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
23
BNP Paribasgroup.bnpparibas

Leading bank in Europe, provides financial solutions for individuals, businesses, and institutions, including financing, investment, savings, and protection insurance across 64 countries.

Banking 🇫🇷 Paris 155,716 1848
24
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
25
HCA Healthcaredpxmedcity.net

A healthcare organization with 186 hospitals and 2,300 sites, focused on providing quality care, advancing science, and impacting communities positively

Hospitals and Health Care 🇺🇸 Nashville 150,409 n/a
26
Allianzallianz.com

A global insurance and asset management group serving over 100 million customers in 70+ countries, committed to sustainability and employee well-being

Financial Services 🇩🇪 Munich 150,057 n/a
27
AXAaxa.com

Global insurer acting for human progress by protecting individuals, businesses, and societies, committed to collective good, risk understanding, and better protection.

Insurance 🇫🇷 Paris 148,548 n/a
28
Orangeorange.com

A leading global telecommunications operator offering services to millions of customers and multinational companies across 26 countries

Telecommunications 🇫🇷 Issy-les-Moulineaux 146,935 n/a
29
Vodafonevodafone.com

Using technology to connect people globally, drive social change, and improve lives while emphasizing the importance of humanity and collaboration

Telecommunications 🇬🇧 London 142,740 1982
30
Walgreens Boots Alliancewalgreens.com

Integrated healthcare and retail company operating thousands of pharmacy locations, providing medicines, health services, beauty products, and digital convenience globally.

Retail Pharmacies 🇺🇸 Deerfield 141,576 2014
31
CVS Healthcvshealth.com

Providing accessible health care services, managing chronic diseases, supporting medication compliance, and improving community health through local and digital channels.

Hospitals and Health Care 🇺🇸 Woonsocket 139,212 1963
32
Kaiser Permanentehealthy.kaiserpermanente.org

Leading not-for-profit health plan with a unique business model driving industry improvements, serving millions of members across multiple states and impacting communities positively

Hospitals and Health Care 🇺🇸 Oakland 137,397 1945
33
Verizonverizon.com

A global human network that values creativity, connection, and flexibility, dedicated to making an impact and moving the world forward

IT Services and IT Consulting 🇺🇸 Basking Ridge 137,000 n/a
34
BBVAbbva.com

Global banking company driving digital transformation to provide cutting edge solutions to 85 million customers worldwide through collaborative and innovative work culture

Banking 🇪🇸 Bilbao 130,572 1857
35
Santandersantander.com

Leading global bank offering retail, corporate, investment banking, wealth management, insurance, and payment services to diverse clients worldwide.

Banking 🇪🇸 Boadilla del Monte 129,701 n/a
36
Fresenius Medical Carefreseniusmedicalcare.com

Global leader in renal disease products and services, providing tailored dialysis treatments for improved quality of life for patients worldwide

Hospitals and Health Care 🇩🇪 Bad Homburg 128,000 1996
37
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
38
Telefónicatelefonica.com

Leading global telecommunications company providing advanced infrastructure, innovative digital and data services, focusing on secure, cutting-edge technology and social impact.

Telecommunications 🇪🇸 Madrid 121,569 n/a
39
UBSubs.com

Wealth management, investment banking, asset management, and banking services globally, focusing on continuous growth, learning, innovation, and collaboration among diverse talents

Financial Services 🇨🇭 Zurich 117,814 1862
40
Optumoptum.com

A leading health services and innovation company revolutionizing health care delivery, operations, and analytics to improve quality and efficiency globally

Hospitals and Health Care 🇺🇸 Eden Prairie 113,067 n/a
41
Itaú Unibancoitau.com.br

Latin America's largest bank focusing on empowering people's transformation through news, work environment details, opportunities, and trends sharing

Banking 🇧🇷 São Paulo 112,811 n/a
42
State Farmstatefarm.com

Providing insurance and financial solutions to help people manage risks, recover from unexpected events, and achieve their dreams.

Insurance 🇺🇸 Bloomington 112,234 1922
43
Lufthansalufthansa.com

Connecting passengers globally, shaping sustainable aviation, offering premium travel experiences, and enhancing customer comfort with advanced technology and services.

Airlines and Aviation 🇩🇪 Frankfurt 110,000 1953
44
TDcareers.td.com

A leading North American bank with a global presence, serving 22 million customers with a team of over 85,000 employees Providing legendary customer experiences

Banking 🇨🇦 Toronto 105,476 n/a
45
Morgan Stanleymorganstanley.com

Global financial services firm providing investment banking, securities, wealth and investment management services to corporations, governments, institutions, and individuals through strategic capital allocation.

Financial Services 🇺🇸 New York 103,041 n/a
46
RBCrbc.com

Global financial institution focused on delivering leading performance through innovative solutions, exceptional client experiences, and community support initiatives in various countries

Banking 🇨🇦 Toronto 99,801 n/a
47
Axis Bankbank.in

Leading private sector bank offering financial services to corporate, retail, MSME, and agriculture segments through extensive branch network and digital platforms.

Banking 🇮🇳 Mumbai 99,395 1994
48
airtelairtel.com

Provides global connectivity, developing infrastructure for cutting-edge technologies like 5G, IoT, and enterprise solutions, contributing to 'Digital India' with a vast subscriber base.

Telecommunications 🇮🇳 Gurugram 99,135 n/a
49
Jiojio.com

It builds future products and services to empower billions of Indians, promoting a digital lifestyle and enhancing communication and connectivity.

Telecommunications 🇮🇳 Navi Mumbai 99,088 2010
50
Spectrumspectrum.net

A leading broadband connectivity company offering internet, TV, mobile, voice, and tailored advertising services to residential, business, and government customers

Telecommunications 🇺🇸 Stamford 97,651 1993

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51
Intesa Sanpaologroup.intesasanpaolo.com

Leading Italian banking group with international presence, focusing on wealth management, advisory, and digital solutions Committed to impact financing and supporting those in need

Banking 🇮🇹 Turin 97,000 2007
52
T-Mobilecareers.t-mobile.com

Leading US wireless provider delivering advanced 4G LTE and nationwide 5G networks, prioritizing customer value, service excellence, and innovation in Bellevue, Washington

Telecommunications 🇺🇸 Bellevue 96,232 n/a
53
Humanahumana.com

This company focuses on delivering personalized healthcare experiences, creating innovative solutions, and prioritizing the well-being of individuals and communities

Insurance 🇺🇸 Louisville 96,000 n/a
54
American Expressamericanexpress.com

A globally integrated payments company supporting customers' financial confidence, promoting commerce, and providing experiences that enrich lives and drive business success

Financial Services 🇺🇸 New York 94,909 n/a
55
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
56
Banco Bradescobanco.bradesco

A leading private financial institution focusing on providing efficient solutions, products, and services to promote social mobility and sustainable development

Banking 🇧🇷 Osasco 89,132 n/a
57
U.S. Bankusbank.com

A leading commercial bank offering a blend of personal service and digital tools to serve millions of clients worldwide

Banking 🇺🇸 Minneapolis 87,474 n/a
58
Scotiabankscotiabank.com

A global financial institution serving customers, families, and communities by providing advice, products, and services to help them achieve success

Banking 🇨🇦 Toronto 87,065 n/a
59
Kotak Mahindra Bankkotak.com

Leading financial conglomerate offering banking, stock broking, mutual funds, insurance, and investment services across India and globally.

Banking 🇮🇳 Mumbai 86,827 1985
60
TotalEnergiestotalenergies.com

Global energy company with 105,000 employees focused on energy transition, safety, ethics, innovation, and career development worldwide.

Oil and Gas 🇫🇷 Paris La Défense Cedex 86,609 n/a
61
bpbp.com

Investing in a balanced energy system by transitioning from oil and gas to lower-carbon energy, convenience stores, and power trading

Oil and Gas 🇬🇧 London 85,000 1909
62
Capital Onecapitalone.com

Innovative bank focused on financial inclusion, creating tools to improve customers' lives, and encouraging a work-life balance for employees

Financial Services 🇺🇸 McLean 82,863 n/a
63
Barclayshome.barclays

A British universal bank with global presence, offering consumer banking, payments, corporate and investment banking services, supported by technology and operational solutions

Financial Services 🇬🇧 London 82,417 n/a
64
Deutsche Bankdb.com

Offers financial services to companies, governments, institutions, small businesses, and individuals globally. Focuses on corporate, private, and investment banking, plus asset management.

Financial Services 🇩🇪 Frankfurt 81,792 1870
65
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
66
A.P. Moller - Maerskmaersk.com

An integrated transport and logistics company connecting the world for customers and society, enabling trade, growth, and thriving across 130 countries.

Transportation, Logistics, Supply Chain and Storage 🇩🇰 Copenhagen 80,345 1904
67
Standard Charteredsc.com

An international banking group with a presence in 53 markets, driving commerce and prosperity through diversity and values Listed on London and Hong Kong Stock Exchanges

Banking 🇬🇧 London 79,401 n/a
68
Groupe Crédit Agricolecredit-agricole.com

Leading European retail bank offering comprehensive financial services including loans, insurance, asset management, corporate banking, and customer-focused solutions.

Banking 🇫🇷 Montrouge 76,287 n/a
69
Goldman Sachsgoldmansachs.com

Global financial institution providing expert capital markets services, investment banking, and asset management for clients through partnership, integrity, and world-class operational excellence.

Financial Services 🇺🇸 New York 76,000 n/a
70
Delta Air Linesdelta.com

Leading global airline focused on safety, innovation, operational excellence, and award-winning customer service connecting people and cultures worldwide.

Airlines and Aviation 🇺🇸 Atlanta 75,854 1925
71
United Airlinesunited.com

Leading airline with over 90,000 employees focused on customer service, sustainability, and teamwork, currently hiring 15,000 new team members in 2023

Airlines and Aviation 🇺🇸 Chicago 75,520 1926
72
DSV - Global Transport and Logisticsdsv.com

Global supply chain solutions provider with a focus on customer experience, sustainability, diversity, and integrity, spanning over 80 countries

Transportation, Logistics, Supply Chain and Storage 🇩🇰 Hedehusene 75,000 1976
73
BT Groupbt.com

A global communications services company connecting people through technology to address challenges like the pandemic, climate change, and cyber security

Telecommunications 🇬🇧 London 73,712 n/a
74
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
75
ExxonMobilcorporate.exxonmobil.com

Scientists and engineers pioneering research, pursuing new technologies to reduce emissions, creating efficient fuels, meeting global energy needs, aiming net-zero emissions by 2050.

Oil and Gas 🇨🇿 73,163 n/a
76
FCCfcc.es

Global citizen services company with 100+ years of experience in environmental services, water, and infrastructure sectors, operating in 34 countries

Environmental Services 🇪🇸 Madrid 71,000 1900
77
Standard Bank Groupstandardbank.com

Financial services provider focused on inclusive, sustainable economic development and growth across sub-Saharan Africa with ethical business practices.

Financial Services 🇿🇦 Johannesburg 70,728 1862
78
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
79
INGing.com

A pioneering, innovative global bank empowering people and businesses to achieve a better future through frictionless, sustainable banking services

Banking 🇳🇱 Amsterdam 68,595 n/a
80
Deutsche Telekomtelekom.com

A leading global communications and information technology company with a diverse team of 206,000 colleagues creating innovative solutions for digital transformation

Telecommunications 🇩🇪 Bonn 67,270 n/a
81
Emiratesemirates.com

A multinational conglomerate based in Dubai, offering diverse career opportunities in the aviation industry with tax-free benefits and professional development

Airlines and Aviation 🇦🇪 Dubai 66,465 n/a
82
Ascensionhealthcare.ascension.org

A faith-based healthcare organization focused on providing compassionate care to those in need across the US through various services and programs

Hospitals and Health Care 🇺🇸 St. Louis 66,381 1999
83
Verizon Wirelessverizonwireless.com

This company powers fast and reliable network, offers cloud and security solutions, and leads in IoT and video entertainment

Telecommunications 🇺🇸 Basking Ridge 65,405 n/a
84
Crédit Mutuel Alliance Fédéralecreditmutuel.fr

Leading bancassurance provider in France, offering multi-service solutions to individuals, local professionals, and businesses of all sizes, through a vast network of sales points.

Banking 🇫🇷 Strasbourg 64,344 2018
85
PNCpnc.com

Provides financial services focused on managing money effectively to simplify clients' financial lives and support their life goals.

Financial Services 🇺🇸 Pittsburgh 64,159 n/a
86
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
87
BMObmo.com

Financial institution offering banking services, career growth opportunities, learning programs, and a supportive culture for personal and professional success.

Financial Services 🇨🇦 Toronto 60,290 n/a
88
HDB Financial Services Ltd.hdbfs.com

Provides diverse financial lending products like personal, business, and vehicle loans, alongside BPO services such as collection call centers and back-office operations for individuals and businesses.

Financial Services 🇮🇳 Mumbai 60,142 2007
89
American Airlinesaa.com

Operate a global airline with over 1,300 aircraft, connecting customers worldwide while providing career growth and leadership opportunities.

Airlines and Aviation 🇺🇸 Dallas-Fort Worth 60,018 n/a
90
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
91
Generaligenerali.com

Global insurance and financial products market leader, operating in over 50 countries, with €500 billion in assets, and recognized for innovation

Insurance 🇮🇹 Milan 59,226 1831
92
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
93
Credit Suisseubs.com

A global wealth manager offering services in wealth management, banking, asset management, and investment banking, focusing on diversity and empowerment

Banking 🇨🇭 Zurich 59,000 1856
94
MetLifemetlife.com

A leading financial services company offering insurance, annuities, employee benefits, and asset management globally, focused on simplifying and meeting customers' evolving needs

Insurance 🇺🇸 New York 58,000 n/a
95
Lloyds Banking Grouplloydsbankinggroup.com

This company focuses on creating a more sustainable and inclusive future in the financial services industry, while supporting customers' changing needs

Financial Services 🇬🇧 London 57,702 n/a
96
UniCreditunicreditgroup.eu

A pan-European bank focused on empowering communities and stakeholders, delivering for clients, employees, and investors with integrity, ownership, and care

Banking 🇮🇹 Milan 56,878 1870
97
Northwell Healthnorthwell.edu

Largest New York healthcare system with hospitals, outpatient facilities, research institutes, medical education, and extensive patient care services.

Hospitals and Health Care 🇺🇸 Lake Success 56,405 1997
98
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
99
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
100
BNYbny.com

Global financial platforms provider managing investment assets and custody services for top banks, governments, pension plans, and major corporations to accelerate growth.

Financial Services 🇺🇸 New York 55,654 1784

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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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