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The 100 largest critical infrastructure operators in Argentina

Tamtam tracks 124 critical infrastructure operators headquartered in Argentina. This list ranks the 100 largest by number of employees on LinkedIn, led by YPF, Telecom Argentina and Galicia Bank. Their median headcount is 1,480. Half of them were founded in 1975 or later. The most common headquarters are Buenos Aires (58), Rosario (5) and La Plata (4).

🇦🇷 Argentina100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
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
2
Telecom Argentinatelecom.com.ar

Provides connectivity solutions and entertainment, including mobile and fixed connections, and a live and on-demand content platform for individuals, companies and institutions.

Telecommunications 🇦🇷 Comuna 1 14,428 1990
3
Galicia Bankgalicia.ar

Leading Argentine private bank offering diverse financial services to individuals and businesses through extensive branch and digital networks.

Financial Services 🇦🇷 Buenos Aires 9,585 1905
4
Hospital Italiano de Buenos Aireshospitalitaliano.org.ar

A leading healthcare institution with over 9,000 employees, providing high-quality care, education, research, and coverage for 180,000+ members

Hospitals and Health Care 🇦🇷 Buenos Aires 8,354 1853
5
Claro Argentinaclaroempleos-aup.com

A leading telecommunications company in Argentina and globally, focused on connecting people, businesses, and communities while promoting a culture of equality and respect

Telecommunications 🇦🇷 Buenos Aires 7,261 n/a
6
BBVA en Argentinabbva.com.ar

Leading Argentine financial institution with strong market adaptation, maintaining a top position in the country's banking system.

Banking 🇦🇷 Buenos Aires 6,848 1886
7
Banco de la Nación Argentinabna.com.ar

A government-owned bank in Argentina with over 126 years of history, providing financial services to individuals, businesses, and international markets

Banking 🇦🇷 Buenos Aires 6,782 1891
8
Aerolíneas Argentinasaerolineas.com.ar

Leading Argentine airline with a fleet of 84 aircraft, serving 38 domestic and 22 international destinations Offers cargo services, pilot training, and maintenance for multiple aircraft types

Airlines and Aviation 🇦🇷 Buenos Aires 6,574 1950
9
Banco de la Provincia de Buenos Airesbancoprovincia.com.ar

Established in 1822, this bank in Buenos Aires invests in talent, creates value for nearly 5 million clients, and offers a wide range of financial services

Banking 🇦🇷 La Plata 6,394 1822
10
Banco Macromacro.com.ar

A leading Argentine private bank with the largest branch network, supporting regional economies with a focus on customer satisfaction and financial services

Financial Services 🇦🇷 Buenos Aires 6,280 1985
11
Grupo Sancor Segurosgruposancorseguros.com

Established in 1945, we are a leading insurance provider in Argentina, offering a wide range of coverage options and services to meet diverse safety needs

Insurance 🇦🇷 Sunchales 4,937 1945
12
AXION energyaxionenergy.com

Refining and marketing fuels, lubricants, and derivatives within the energy sector, operating as a Pan American Energy brand.

Oil and Gas 🇦🇷 Buenos Aires 4,864 2012
13
Santander Argentinasantander.com.ar

A team of 7,800 people at Santander Río work to create a better workplace by prioritizing recognition, teamwork, personal growth, and customer relationships

Banking 🇦🇷 Buenos Aires 4,660 n/a
14
Trenes Argentinos Operacionesargentina.gob.ar

A government agency in Argentina focused on modernizing the railway system to improve passenger service and contribute to territorial integration

Utilities 🇦🇷 Buenos Aires 4,032 2008
15
Pan American Energypan-energy.com

Leading private hydrocarbon producer in Argentina and Southern Cone, operating across multiple basins and countries with strong operational excellence.

Oil and Gas 🇦🇷 Buenos Aires 3,867 1997
16
AySAaysa.com.ar

A public service company providing tap water and sewage collection for Buenos Aires and surrounding districts in Argentina

Utilities 🇦🇷 Buenos Aires 3,634 n/a
17
Casa Hospital San Juan de Dioshospitalsanjuandedios.org.ar

A non-profit Catholic hospital founded in 1941 by the Brothers of St John of God, offering a wide range of healthcare services and medical education

Hospitals and Health Care 🇦🇷 Ramos Mejía 3,470 1941
18
Telecentrotelecentro.com.ar

A national telecommunications company offering a unique Triple Pack with Digital TV, Broadband Internet, and Digital Landline services, delivering entertainment through cutting-edge technology

Telecommunications 🇦🇷 San Justo 3,379 1990
19
Hospital Alemánhospitalaleman.org.ar

A healthcare organization committed to providing evidence-based medical care with a focus on excellence, respect, ethics, and transparency in all interactions

Hospitals and Health Care 🇦🇷 Buenos Aires 3,215 1867
20
Pluspetrolpluspetrol.net

A private energy company with over 35 years of experience in hydrocarbon exploration and production across multiple countries, focusing on operational excellence and sustainability

Oil and Gas 🇦🇷 Buenos Aires 3,195 1977
21
Edenoredenor.com

The company is the largest electricity distributor in Argentina, serving over 33 million customers in Buenos Aires with a comprehensive power grid infrastructure

Utilities 🇦🇷 Buenos Aires 3,151 1992
22
Banco Superviellesupervielle.com.ar

A leading Argentine bank with a strong focus on human relationships and technology, offering financial services through an omnichannel approach to meet client needs

Banking 🇦🇷 Buenos Aires 3,109 n/a
23
Hospital Británicohospitalbritanico.org.ar

A non-profit hospital founded in 1844, providing healthcare to those in need, with a focus on education, research, and medical advancements

Hospitals and Health Care 🇦🇷 Buenos Aires 3,049 1844
24
Obra Socialiosfa.gob.ar

Non-profit social welfare organization providing medical, financial assistance, tourism, and recreation services to affiliated members, with branches in major cities and hotels in select locations

Hospitals and Health Care 🇦🇷 Buenos Aires 2,928 1947
25
Hospital Universitario Australhospitalaustral.edu.ar

A university health organization focused on patient care, teaching, and biomedical research with a commitment to truth, life, quality, and Christian values

Hospitals and Health Care 🇦🇷 Derqui 2,752 2000
26
ICBC Argentinaicbc.com.ar

A leading global bank focusing on providing excellent financial services, fostering integrity, humanity, prudence, innovation, and excellence to drive prosperity and growth in communities

Financial Services 🇦🇷 Buenos Aires 2,710 2012
27
Grupo Petersengrupopetersen.com.ar

A diversified Argentine conglomerate with interests in engineering, construction, banking, agriculture, and urban maintenance, with a strong focus on social investment

Financial Services 🇦🇷 Retiro 2,605 1920
28
Telecom Personal Argentinapersonal.com.ar

A leading mobile communications service provider in Argentina, offering flexible services over 2G/3G networks and a powerful 4G/LTE network reaching over 1100 locations

Telecommunications 🇦🇷 Puerto Madero 2,533 n/a
29
Aeropuertos Argentinaaeropuertosargentina.com

A leading company managing 35 airports in Argentina, the largest private operator globally, handling 98% of Argentine air traffic With 2,300 employees ensuring top-quality services

Airlines and Aviation 🇦🇷 Buenos Aires 2,521 1998
30
CEMICcemic.edu.ar

A nonprofit medical and clinical research institution focused on academic medical education, research, and community healthcare services for over 55 years

Hospitals and Health Care 🇦🇷 Buenos Aires 2,510 1958
31
Banco Hipotecariohipotecario.com.ar

Specializing in real estate lending in Argentina, this group offers loans for residential properties, mortgage repayment, insurances, brokerage, and property management services

Banking 🇦🇷 Buenos Aires 2,493 1886
32
Banco Patagoniabancopatagonia.com.ar

This organization in Argentina offers a variety of financial solutions for individuals, corporations, and institutional customers, including loans and deposits

Banking 🇦🇷 Buenos Aires 2,461 n/a
33
CGCcgc.energy

An Argentine oil company, part of a leading corporation, specializing in oil exploration, extraction, and gas transportation across Latin America Join our team!

Oil and Gas 🇦🇷 Buenos Aires 2,382 1920
34
La Segunda Seguros CLSGlasegunda.com.ar

An Argentine insurance group with 90 years in the market, focused on providing new opportunities to clients through innovation and community commitment

Insurance 🇦🇷 Rosario 2,296 1933
35
Emergencias SAemergencias.com.ar

A leading emergency medical services company in Argentina, part of IHSA SA group, managing a fleet of 500+ ambulances and serving four million beneficiaries annually ISO 9001 certified

Health and Human Services 🇦🇷 Buenos Aires 2,109 1979
36
HOSPITAL NAVALhnpm.mil.ar

The company provides healthcare services to the personnel of the Navy, focusing on training, research, and operational logistical support for medical purposes

Hospitals and Health Care 🇦🇷 Ciudad de Buenos Aires 1,969 n/a
37
Banco de la Nacion Argentina

Financial institution redirecting followers to the Banco de la Nación Argentina page on Linkedin as they will be closing their own page

Banking 🇦🇷 1,947 n/a
38
Sancor Segurossancorseguros.com.ar

An Argentinean insurance company founded over 60 years ago, offering a wide range of innovative products and services nationally and internationally

Insurance 🇦🇷 Sunchales 1,896 1945
39
Edesuredesur.com.ar

An electrical distribution company in Buenos Aires and suburban areas, providing power to nearly 25 million customers with ISO certifications and international backing

Utilities 🇦🇷 Buenos Aires 1,858 1992
40
Banco Comaficomafi.com.ar

An Argentine private bank focused on strategic growth, providing comprehensive financial solutions for businesses, leading in leasing, distressed assets, and capital markets services

Banking 🇦🇷 Buenos Aires 1,809 n/a
41
Federación Patronal Segurosfedpat.com.ar

Established in 1921, this company started as a cooperative providing coverage for work accidents They uphold cooperative values and lead the Argentine insurance market

Insurance 🇦🇷 La Plata 1,799 1919
42
Cablevisión - Fibertellcc.net.ar

A leading provider of modern pay TV and high-speed internet services in Argentina and Uruguay, with millions of customers across multiple provinces

Telecommunications 🇦🇷 Buenos Aires 1,796 1981
43
Nucleoeléctrica Argentina S.A.nucleoelectrica.com.ar

A nuclear power generation company in Argentina operating nuclear plants, focused on safe, clean, efficient energy production for national benefit

Nuclear Electric Power Generation 🇦🇷 Villa Martelli 1,766 1994
44
Tecpetroltecpetrol.com

Exploring, producing, transporting, and distributing hydrocarbons, driving energy projects for country development in multiple Latin American countries

Oil and Gas 🇦🇷 Buenos Aires 1,730 1980
45
La Caja de Ahorro y Seguroseguros.lacaja.com.ar

Leading Argentine insurance company offering diverse products with strong focus on technology, innovation, and excellent customer service nationwide.

Insurance 🇦🇷 Buenos Aires 1,706 1915
46
Pampa Energiapampa.com

Largest integrated electricity company in Argentina generating, transmitting, and distributing power to millions of customers across major urban areas.

Oil and Gas 🇦🇷 Buenos Aires 1,701 2005
47
TGtgs.com.ar

A leading natural gas company in Argentina, connecting gas reserves with consumption centers through over 9,300km of pipelinesAlso produces and markets natural gas liquids

Oil and Gas 🇦🇷 Buenos Aires 1,600 1992
48
BCRAbcra.gob.ar

A national self-governed institution focused on preserving the value of the currency by regulating money supply and credit, implementing financial regulations, and managing reserves

Banking 🇦🇷 Buenos Aires 1,491 1935
49
Prisma Medios de Pagoprismamediosdepago.com

Leading technology company in Argentina connecting people, businesses, and financial entities through payment solutions in 14 countries, prioritizing innovation, security, and excellence

IT Services and IT Consulting 🇦🇷 Buenos Aires 1,491 1983
50
Flybondi.comflybondi.com

Flybondi is Argentina's first low-cost airline, focused on efficiency to offer the lowest prices, connecting people and promoting travel within the country

Airlines and Aviation 🇦🇷 Buenos Aires 1,480 2016
51
linkredlink.com.ar

A leading Argentine company with 30 years of experience in software development and payment integrations, offering innovative solutions for financial entities and retailers

IT Services and IT Consulting 🇦🇷 Buenos Aires 1,477 1989
52
Ualáuala.com.ar

A tech company providing innovative and integrated financial services through a mobile app and international Mastercard, available in Argentina, Mexico, and Colombia

Financial Services 🇦🇷 Buenos Aires 1,411 2017
53
TGNtgn.com.ar

Regional gas pipeline operators and energy project solution providers, responsible for transporting a significant portion of Argentina's gas supply and connecting multiple regions

Utilities 🇦🇷 Buenos Aires 1,331 n/a
54
Hospital de Alta Complejidad en Red "El Cruce", Dr. Nestor Carlos Kirchnerwww2.hospitalelcruce.org

The Hospital El Cruce provides high-complexity medical care, including diagnostic studies and specialized surgical interventions, for residents in the region

Hospitals 🇦🇷 Florencio Varela 1,303 2008
55
MetroGASmetrogas.com.ar

A leading national gas distribution company with a network covering Buenos Aires and surrounding areas, providing innovative services, maintenance, and customer support

Utilities 🇦🇷 Buenos Aires 1,240 1992
56
TRANSENERtransener.com.ar

A leading company in high-voltage electricity transmission in Argentina, with over 12,400km of transmission lines and a focus on operational efficiency and customer satisfaction

Oil and Gas 🇦🇷 Buenos Aires 1,232 1993
57
Sanatorio Otamendiotamendi.com.ar

A prestigious medical institution with a longstanding commitment to excellence in medical care, cutting-edge technology, and patient comfort since 1928

Hospitals and Health Care 🇦🇷 Buenos Aires 1,158 1928
58
OSEP - Obra Social Empleados Públicos - Mendozaosepmendoza.com.ar

We are the social security for public workers in Mendoza, providing high-quality healthcare through our own facilities and partnerships with other providers

Health and Human Services 🇦🇷 Mendoza 1,155 1953
59
Metropollinktr.ee

A leading transportation company in Argentina, managing 27 bus lines with advanced technology and a focus on comfort and safety for passengers

Ground Passenger Transportation 🇦🇷 Buenos Aires 1,152 1996
60
SANATORIO FINOCHIETTOsanatoriofinochietto.com

A healthcare center offering clinical, surgical, and maternity services with a commitment to patient care, knowledge management, safety, sustainability, and innovation

Hospitals and Health Care 🇦🇷 Buenos Aires 1,130 2013
61
Mercantil Andinamercantilandina.com.ar

Insurance company with 100 years of experience in providing protection solutions to satisfy customers, striving to be the people's preferred choice

Insurance 🇦🇷 Buenos Aires 1,097 1923
62
METROVIASmetrovias.com.ar

We manage the Urquiza Railway Line, with over 25 years experience in urban subway and railway transportation, part of a leading Argentine infrastructure group

Rail Transportation 🇦🇷 Buenos Aires 1,055 1994
63
BIND | Soluciones financierasbind.com.ar

A financial group in Latin America offering innovative solutions for clients, known for awards, disruptive products, API services, and community impact

Financial Services 🇦🇷 Buenos Aires 1,055 1928
64
Hospital Argerichbuenosaires.gob.ar

A municipal hospital in Buenos Aires, Argentina, known for its excellence in transplant procedures, specializing in cardiac, renal, hepatic, and pancreas transplants

Hospitals and Health Care 🇦🇷 Comuna 4 1,051 1897
65
Vía Barilocheviabariloche.com.ar

Long-distance passenger transportation company with over 100 national destinations, recognized as a leader in the areas it serves with 25 years of experience

Transportation, Logistics, Supply Chain and Storage 🇦🇷 Pablo Nogues 1,049 n/a
66
Camuzzicamuzzigas.com

A leading natural gas distributor in Argentina, covering 45% of the country with extensive networks in key provinces, also offering energy advisory and services nationwide

Utilities 🇦🇷 Buenos Aires 1,018 1992
67
Sanatorio Mater Deisanatoriomaterdei.com.ar

Committed to life and dedicated to serving human dignity, the company is focused on uplifting and supporting individuals

Hospitals and Health Care 🇦🇷 Buenos Aires 1,015 1975
68
Hospital San Roqueinstagram.com

Hospital Interzonal providing general acute care services in Gonnet, Buenos Aires, Argentina

Hospitals and Health Care 🇦🇷 La Plata 973 1961
69
vittal - socorro medico privadovittal.com.ar

Leading healthcare extrahospital company with 25 years of experience, 10 million+ services performed, and 2000+ employees nationwide in Argentina

Home Health Care Services 🇦🇷 Buenos Aires 967 1987
70
Empresa Argentina de Navegación Aérea (EANA)eana.com.ar

The Argentine Air Navigation Company coordinates and supervises air traffic control services to ensure safety, efficiency, and environmental responsibility in aviation

Airlines and Aviation 🇦🇷 Ciudad de Buenos Aires 951 2015
71
Instituto Argentino de Diagnóstico y Tratamiento - IADTiadt.com

Medical institution providing comprehensive healthcare services through modern technology, specialized surgery, diagnostic studies, and 24/7 emergencies for adults and pediatrics

Hospitals and Health Care 🇦🇷 Buenos Aires 921 1926
72
Triunfo Segurostriunfoseguros.com

We are a General Insurance Company founded in 1967, dedicated to protecting assets in Argentina We offer self-service options and have a top credit rating

Insurance 🇦🇷 Mendoza 866 1967
73
Hospital Nacional Posadasargentina.gob.ar

A national public hospital network dedicated to comprehensive and humanized healthcare for all stages of life, prioritizing accessibility, equity, safety, and quality

Wellness and Fitness Services 🇦🇷 El Palomar 864 1958
74
EMOVAemova.com.ar

We are a consortium responsible for managing the subway network in Buenos Aires, focusing on reliability, efficiency, technology, and sustainability for an improved user experience

Urban Transit Services 🇦🇷 Buenos Aires 862 2021
75
Centro Rossicdrossi.com

A leading diagnostic imaging center in Argentina, offering state-of-the-art equipment and software across eleven locations, with a focus on improving patient care daily

Wellness and Fitness Services 🇦🇷 San Nicolás 854 n/a
76
Banco Santa Febancosantafe.com.ar

An institution with roots dating back to 1863, offering banking services that have become a source of pride for the residents of Santa Fe province

Banking 🇦🇷 Rosario 853 1874
77
UOL Argentinasion.com

An Argentine telecommunications company acquired a Brazilian internet provider, becoming the largest ISP in the country with high-quality internet services and nationwide coverage

Construction 🇦🇷 Rada Tilly 837 1999
78
Galicia Segurosgaliciaseguros.com.ar

We are a leading insurance company offering personal and property insurance, as well as products and services for businesses, with a focus on customer satisfaction

Insurance 🇦🇷 Cdad. Autónoma de Buenos Aires 835 1996
79
Hospital Carlos G. Durandbuenosaires.gob.ar

High-complexity university public hospital located in Buenos Aires, Argentina, providing advanced medical services and care to the community

Medical Equipment Manufacturing 🇦🇷 Buenos Aires 810 1913
80
Supercanalsuperconectados.ar

Leading entertainment company in Argentina offering television services (analog and HD), fiber optic internet, and online streaming platform, with presence in 14 provinces

Telecommunications 🇦🇷 Ciudad 807 n/a
81
Flecha Busflechabus.com.ar

An Argentine transportation company with over 60 years of experience providing quality service, modern units, and advanced technology to meet passenger needs Vision to lead the market nationwide and expand to Mercosur

Ground Passenger Transportation 🇦🇷 Colón 801 1959
82
Raízen Argentinaraizen.com.ar

We provide energy for people and businesses in Brazil and Argentina through a joint venture with Shell, offering a wide range of high-quality products and services

Oil and Gas 🇦🇷 Buenos Aires 800 2018
83
Hospital Provincial Neuquénhospitalneuquen.org.ar

A leading healthcare institution in Patagonia, the Provincial Hospital Neuquén is dedicated to serving the community with a focus on improving quality of life and overall health

Hospitals and Health Care 🇦🇷 Neuquén 769 n/a
84
Trenes Argentinos Cargasargentina.gob.ar

Trenes Argentinos Cargas operates freight railway lines across Argentina, revitalizing production possibilities and boosting regional economies with a federal approach

Rail Transportation 🇦🇷 Buenos Aires 766 2013
85
Hospital Privadohospitalprivado.com.ar

A team of experienced healthcare professionals at a private hospital in Córdoba, providing high-quality services and care nationally and internationally

Medical Practices 🇦🇷 Villa Allende 764 n/a
86
Vista Energyvistaenergy.com

An independent operator focused on developing shale oil and gas assets in Vaca Muerta, Mexico, and evaluating additional E&P opportunities in the region

Oil and Gas 🇦🇷 Neuquén 757 n/a
87
Hospital Privado de Comunidadhpc.org.ar

Leading medical institution in Mar del Plata providing high-quality medical care, training healthcare professionals, and contributing to medical research for scientific advancement

Hospitals and Health Care 🇦🇷 Mar del Plata 752 1971
88
Sanatorio Colegialessanatoriocolegiales.com.ar

A healthcare facility with over 50 years of experience in Argentina, offering high-quality medical assistance with advanced technology and a focus on human values

Hospitals and Health Care 🇦🇷 Buenos Aires 751 n/a
89
Banco Columbia S.A.secure.bancocolumbia.com.ar

A 100% nationally owned private bank focusing on providing a variety of financial services including investments, savings, currency exchange, and consumer financing with qualified and service-oriented staff

Banking 🇦🇷 Buenos Aires 744 n/a
90
Rio Uruguay Segurosriouruguay.com.ar

A social economy company founded in 1958, focusing on insurance services, social responsibility, technology innovation, and real estate development for sustainability and growth

Insurance 🇦🇷 Concepción del Uruguay 741 1958
91
Central Puertocentralpuerto.com

Development and operation of diversified energy generation assets including thermal, wind, hydroelectric, and solar power across Argentina.

Electric Power Generation 🇦🇷 Ciudad de Buenos Aires 738 1992
92
Allariaallaria.com.ar

Financial services company providing investment advice and management for individuals, businesses, and institutions in Argentina, with a strong reputation in local and international markets

Financial Services 🇦🇷 Buenos Aires 730 n/a
93
Hospital Italiano La Plataitalianolaplata.org.ar

A centenary non-profit community hospital providing healthcare from primary care to high complexity, promoting research, training, quality, and accessibility in a team-based model

Hospitals and Health Care 🇦🇷 La Plata 727 1886
94
REFINOR S.A.refinor.com

A regional hydrocarbons processing and transportation business serving clients in Northern Argentina, with a focus on quality, growth, and innovation

Oil and Gas 🇦🇷 Banda del Río Salí 713 1992
95
DIM Centros de Saluddim.com.ar

A leading healthcare provider in Argentina, offering a wide range of medical services with state-of-the-art technology and over 500 top professionals

Medical Practices 🇦🇷 Matanza 710 1964
96
EPEepe.santafe.gov.ar

A provincial energy provider in Santa Fe, focusing on supplying energy to the region

Utilities 🇦🇷 Rosario 699 n/a
97
Sanatorio Británicosanatoriobritanico.com.ar

Established in 1924, the organization plays a vital role in Rosario's healthcare history, providing modern medical care and innovative advancements

Hospitals and Health Care 🇦🇷 Rosario 693 1924
98
Hospital General de Agudos Dr. Enrique Tornúbuenosaires.gob.ar

Public hospital in the city of Buenos Aires, providing healthcare services to the community

Wellness and Fitness Services 🇦🇷 Comuna 15 693 1904
99
Grupo Gammagrupogamma.com

A healthcare network serving over 40,000 patients monthly with 750 healthcare professionals, leading in medicine through continuous improvement, technology innovation, and new services development

Medical Practices 🇦🇷 Rosario 672 1978
100
Hospital Español de Mendozahespanol.com.ar

A renowned medical center with a 100-year history in healthcare, known for excellence in services, technological innovation, and scientific advancement for life care

Hospitals and Health Care 🇦🇷 Godoy Cruz 669 1923

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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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