The companies listed in Buenos Aires are large, established firms across a range of sectors. Many are significant players in their respective industries, often with a presence beyond Argentina. For example, Mercado Libre specializes in digital commerce and financial services across Latin America, while Andreani Grupo Logístico and OCASA are logistics leaders in Argentina and globally. Swiss Medical Group provides healthcare services, and Banco de la Nación Argentina is a government-owned bank with a long history.
Several companies have a long operational history, with some founded in the mid-20th century or earlier, like Banco de la Nación Argentina (1891) and Andreani Grupo Logístico (1945). The list shows a diverse economic landscape, including internet publishing, logistics, healthcare, banking, and oil and gas. Pan American Energy and Pluspetrol are notable in the oil and gas sector, both operating across multiple countries in the Southern Cone.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Mercado Libremercadolibre.com
Democratizes commerce and financial services through digital payments, lending, and marketplace logistics for millions of users across eighteen Latin American countries. |
68,766 | |||
| 2 |
JOBsomosjob.ar
A communication and services agency providing creative solutions to consumer goods marketing teams Expert team with offices in Argentina and Uruguay |
15,492 | |||
| 3 |
Andreani Grupo Logísticoandreani.com
Provides specialized logistic solutions in Argentina and Brazil, focusing on high-value products in pharmaceutical, cosmetic, and technology sectors, and offering postal services for home deliveries. |
8,310 | |||
| 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 |
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 |
6,782 | |||
| 6 |
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 |
6,574 | |||
| 7 |
OCASA
A global logistics company with 39 years of experience, offering integrated solutions and a large network of branches and agents worldwide |
6,349 | |||
| 8 |
Dia Argentinadiaonline.supermercadosdia.com.ar
Dia Argentina is part of a leading network of proximity stores, offering quality products in over 1000 locations through a team of dedicated employees and franchisees |
3,873 | |||
| 9 |
Pan American Energypan-energy.com
Leading private hydrocarbon producer in Argentina and Southern Cone, operating across multiple basins and countries with strong operational excellence. |
3,867 | |||
| 10 |
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 |
3,195 | |||
| 11 |
GDMgdmseeds.com
Global group utilizing advanced technology for researching, developing, and selling high-yield soybean varieties and various other crops on a large scale |
2,932 | |||
| 12 |
Blue Star Group (BSG)bsg.global
A leading specialty retailer offering fashionable jewelry and accessories for young women, teens, tweens, and kids at over 800 stores worldwide |
2,732 | |||
| 13 |
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 |
2,710 | |||
| 14 |
CAT Technologies Argentinacat-technologies.com
Leading company providing Next Gen Contact Center, BPO, and CX services Creating positive experiences and long-term relationships with top-tier clients across various industries Operating globally |
2,560 | |||
| 15 |
Café Martínezcafemartinez.com
A family-owned company with over 90 years of experience in importing, roasting, and distributing coffee They focus on providing a premium café experience through innovation and a digital ecosystem |
2,542 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Mirgormirgor.com
A leading company in the automotive, consumer electronics, and mobile phone sectors, with over 30 years of experience in the local market |
2,266 | |||
| 17 |
Contrerascontreras.com.ar
A leading Latin American company specialized in engineering and construction, with expertise in pipelines, compressor plants, industrial assemblies, and infrastructure projects |
2,163 | |||
| 18 |
Ministerio de Relaciones Exteriores, Comercio Internacional y Culto de la República Argentinacancilleria.gob.ar
The organization is responsible for managing the foreign relations and representation of the country to foreign governments and international organizations |
2,099 | |||
| 19 |
Coppel Argcoppel.com.ar
A Mexican department store chain with locations in Argentina, offering a wide variety of products including electronics, furniture, clothing, and footwear |
2,088 | |||
| 20 |
Laboratorios Bagóbago.com.ar
A pharmaceutical company founded in Argentina in 1934, dedicated to research, development, and production of high-quality products for global health |
1,979 | |||
| 21 |
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 |
1,796 | |||
| 22 |
TASA Logistica S.Atasalogistica.com
Provides reliable warehouse and transportation solutions with 80 years of experience, supported by strong client relationships and dedicated team. |
1,737 | |||
| 23 |
Tecpetroltecpetrol.com
Exploring, producing, transporting, and distributing hydrocarbons, driving energy projects for country development in multiple Latin American countries |
1,730 | |||
| 24 |
KPMG Argentinakpmg.com.ar
A professional services firm specializing in Audit, Tax, Legal, and Advisory, helping clients overcome complexity and challenges in Argentina and worldwide |
1,586 | |||
| 25 |
Todomodatodomoda.com
Design, manufacture, and sell trendy women's accessories with sustainable growth and international presence through over 450 stores worldwide. |
1,551 | |||
| 26 |
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 |
1,491 | |||
| 27 |
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 |
1,411 | |||
| 28 |
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 |
1,331 | |||
| 29 | 1,291 | ||||
| 30 |
ProHygieneprohygiene.com
Leader in Professional Hygiene with over 30 years of experience, providing innovative solutions for air purifying, sanitizing, hand drying, odor control, and waste management |
1,206 | |||
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 Nov 11, 2026.
More company lists in Buenos Aires
- The largest companies in Buenos Aires 908
- Critical infrastructure operators in Buenos Aires 103
- Retail chains in Buenos Aires 100
- Education providers in Buenos Aires 91
- Financial services firms in Buenos Aires 70
- Companies with a mobile app in Buenos Aires 64
- IT Services and IT Consulting companies in Buenos Aires 64
- Healthcare providers in Buenos Aires 62
- Financial Services companies in Buenos Aires 58
- E-commerce companies in Buenos Aires 53
- Public sector organisations in Buenos Aires 52
- Manufacturers in Buenos Aires 50
- Higher Education companies in Buenos Aires 43
- Hospitals and Health Care companies in Buenos Aires 41
- IT services companies in Buenos Aires 40
- Professional services firms in Buenos Aires 40
- Corporate groups and holding companies in Buenos Aires 36
- Government Administration companies in Buenos Aires 33
- Energy companies in Buenos Aires 32
- Consulting firms in Buenos Aires 29
- Hotel and hospitality groups in Buenos Aires 29
- Food and Beverage Services companies in Buenos Aires 27
- Franchise networks in Buenos Aires 25
- Retail Apparel and Fashion companies in Buenos Aires 25