| # | Company | Employees |
|---|---|---|
| 1 |
University of Buenos Airesuba.ar
Public university offering extensive undergraduate and postgraduate programs, renowned for academic excellence and significant research contributions in Argentina. |
26,362 |
| 2 |
Farmacity S.A.somosfarmacity.com
A health company specializing in medication, consumer products, hygiene, and cosmetics, with a strong commitment to community development and social responsibility projects |
8,580 |
| 3 |
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 |
8,354 |
| 4 |
Swiss Medical Groupswissmedical.com.ar
A leading Argentine group dedicated to healthcare, providing protection and high-quality services through a variety of companies in the industry |
7,055 |
| 5 |
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 |
3,215 |
| 6 |
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 |
3,049 |
| 7 |
CEMICcemic.edu.ar
A nonprofit medical and clinical research institution focused on academic medical education, research, and community healthcare services for over 55 years |
2,510 |
| 8 |
Medicusmedicus.com.ar
Leading private medical provider with over 4 decades of experience, emphasizing quality, research, constant training, and innovation to meet healthcare expectations |
2,472 |
| 9 |
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 |
2,109 |
| 10 |
Hospital de Clínicas "José de San Martín"hospitaldeclinicas.uba.ar
A teaching hospital in Buenos Aires, Argentina affiliated with the University of Buenos Aires, known for its high academic standards |
1,989 |
| 11 |
Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich
Hospital Militar Central Cirujano Mayor Dr Cosme Argerich is a health care company located in Madrid, Spain, providing medical services and hospital care |
1,240 |
| 12 |
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 |
1,158 |
| 13 |
SANATORIO FINOCHIETTOsanatoriofinochietto.com
A healthcare center offering clinical, surgical, and maternity services with a commitment to patient care, knowledge management, safety, sustainability, and innovation |
1,130 |
| 14 |
Santa Catalina - Neurorehabilitación Clínicasantacatalinaclinica.com
The company is dedicated to improving people's lives through professionalism, compassion, and advanced medical procedures in neurorehabilitation and chronic critical care |
1,095 |
| 15 |
Sanatorio Mater Deisanatoriomaterdei.com.ar
Committed to life and dedicated to serving human dignity, the company is focused on uplifting and supporting individuals |
1,015 |
| 16 |
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 |
967 |
| 17 |
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 |
921 |
| 18 |
Obra Social Union personalunionpersonal.com.ar
The company is responsible for the IT management of a social organization, medical centers, private health plans, and branches across the country |
919 |
| 19 |
UBA College of Veterinary Medicinefvet.uba.ar
A prestigious veterinary school in Argentina offering a wide range of undergraduate and graduate degrees, known for its excellence in education, research, and outreach |
902 |
| 20 |
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 |
810 |
| 21 |
IAF (Instituto Alexander Fleming)alexanderfleming.org
A leading private clinic in Argentina and Latin America, offering over 50 medical specialties with a focus on excellence, technology, research, and education |
799 |
| 22 |
Sanatorio Anchorena Recoletasanatorio-anchorena.com.ar
Health institution with top-quality service and technology equipment, led by healthcare professionals |
759 |
| 23 |
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 |
751 |
| 24 |
Universidad de Buenos Aires (UBA)uba.ar
A prestigious public university in Argentina, founded in 1821, offering a wide range of academic programs in Buenos Aires |
734 |
| 25 |
Asociart ARTasociart.com.ar
Specialized insurance provider for Work Risks with a strong market presence, focusing on prevention and efficient care for over 100,000 companies and 950,000 workers nationwide |
711 |
| 26 |
Obra Social Luis Pasteuroslpasteur.com.ar
A non-profit health care entity established in 1975, providing quality health coverage and personalized care for employees of pharmaceutical companies across Argentina |
690 |
| 27 |
Sanatorio Sagrado Corazónsagradocorazon.net.ar
Highly complex hospital providing advanced technology and innovative processes for diagnosis and treatment, prioritizing trust and transparency with patients and families |
667 |
| 28 |
Sanatorio Municipal Dr. Julio Méndezobsba.org.ar
Medical practice facility located in Buenos Aires, Argentina, offering healthcare services at AV NICOLÁS AVELLANEDA 551 |
655 |
| 29 |
Hospital General de Agudos “Dr. Ignacio Pirovano"buenosaires.gob.ar
A hospital named after Dr Ignacio Pirovano, serving a large population in Buenos Aires with a wide range of medical specialties |
637 |
| 30 |
Centro Gallego de Buenos Airescentrogallegoba.com.ar
A prominent institution representing nearly five million Galicians and their descendants globally, focused on preserving and promoting Galician culture, tradition, and supporting healthcare needs |
612 |
| 31 |
ICBA Instituto Cardiovascularicba.com.ar
A specialized medical center in cardiology focused on providing hope and quality of life to patients with cardiovascular diseases through excellence, innovation, and personalized care |
611 |
| 32 |
Acudir Emergencias Médicasacudiremergencias.com.ar
A company led by experienced professionals in emergentology, offering top-quality emergency medical coverage solutions for health insurers, businesses, schools, and institutions |
556 |
| 33 |
Centro Médico Integral Fitz Roycmifitzroy.com.ar
A leading occupational health institution specializing in accidentology and occupational medicine, providing comprehensive solutions for worker health care and safety through medical services and wellness programs |
555 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
More company lists in Buenos Aires
- The largest companies in Buenos Aires 884
- Critical infrastructure operators in Buenos Aires 71
- Retail chains in Buenos Aires 64
- IT Services and IT Consulting companies in Buenos Aires 60
- Financial Services companies in Buenos Aires 54
- Education providers in Buenos Aires 50
- Financial services firms in Buenos Aires 46
- Higher Education companies in Buenos Aires 43
- Hospitals and Health Care companies in Buenos Aires 41
- Government Administration companies in Buenos Aires 32
- Public sector organisations in Buenos Aires 31
- Food and Beverage Services companies in Buenos Aires 27
- Retail Apparel and Fashion companies in Buenos Aires 25
- Manufacturers in Buenos Aires 25