# The 30 largest multinational companies in Buenos Aires

Tamtam tracks 150 multinational companies headquartered in Buenos Aires. This list ranks the 30 largest by number of employees on LinkedIn, led by Mercado Libre, JOB and Andreani Grupo Logístico. Their median headcount is 2,542. Half of them were founded in 1982 or later.

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.

🇦🇷 Buenos Aires · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Mercado Libre](https://www.tamtam.ai/c/mercado-libre) (mercadolibre.com)<br>Democratizes commerce and financial services through digital payments, lending, and marketplace logistics for millions of users across eighteen Latin American countries. | Internet Publishing | 🇦🇷 Buenos Aires | 68,766 |  |
| 2 | [JOB](https://www.tamtam.ai/c/job) (somosjob.ar)<br>A communication and services agency providing creative solutions to consumer goods marketing teams Expert team with offices in Argentina and Uruguay | Advertising Services | 🇦🇷 Buenos Aires | 15,492 | 1977 |
| 3 | [Andreani Grupo Logístico](https://www.tamtam.ai/c/andreani-grupo-logistico) (andreani.com)<br>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. | Transportation, Logistics, Supply Chain and Storage | 🇦🇷 Ciudad Autónoma de Buenos Aires | 8,310 | 1945 |
| 4 | [Swiss Medical Group](https://www.tamtam.ai/c/swiss-medical-group) (swissmedical.com.ar)<br>A leading Argentine group dedicated to healthcare, providing protection and high-quality services through a variety of companies in the industry | Hospitals and Health Care | 🇦🇷 Buenos Aires | 7,055 |  |
| 5 | [Banco de la Nación Argentina](https://www.tamtam.ai/c/banco-de-la-nacion-argentina-ciudad-autonoma-de-buenos-aires) (bna.com.ar)<br>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 |
| 6 | [Aerolíneas Argentinas](https://www.tamtam.ai/c/aerolineas-argentinas) (aerolineas.com.ar)<br>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 |
| 7 | [OCASA](https://www.tamtam.ai/c/ocasa)<br>A global logistics company with 39 years of experience, offering integrated solutions and a large network of branches and agents worldwide | Transportation, Logistics, Supply Chain and Storage | 🇦🇷 Buenos Aires | 6,349 | 1982 |
| 8 | [Dia Argentina](https://www.tamtam.ai/c/dia-argentina) (diaonline.supermercadosdia.com.ar)<br>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 | Food and Beverage Services | 🇦🇷 Buenos Aires | 3,873 | 1997 |
| 9 | [Pan American Energy](https://www.tamtam.ai/c/pan-american-energy) (pan-energy.com)<br>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 |
| 10 | [Pluspetrol](https://www.tamtam.ai/c/pluspetrol) (pluspetrol.net)<br>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 |
| 11 | [GDM](https://www.tamtam.ai/c/gdm) (gdmseeds.com)<br>Global group utilizing advanced technology for researching, developing, and selling high-yield soybean varieties and various other crops on a large scale | Farming | 🇦🇷 Buenos Aires | 2,932 | 1982 |
| 12 | [Blue Star Group (BSG)](https://www.tamtam.ai/c/blue-star-group-bsg) (bsg.global)<br>A leading specialty retailer offering fashionable jewelry and accessories for young women, teens, tweens, and kids at over 800 stores worldwide | Retail Apparel and Fashion | 🇦🇷 Buenos Aires | 2,732 | 1995 |
| 13 | [ICBC Argentina](https://www.tamtam.ai/c/icbc-argentina) (icbc.com.ar)<br>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 |
| 14 | [CAT Technologies Argentina](https://www.tamtam.ai/c/cat-technologies-argentina) (cat-technologies.com)<br>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 | Telecommunications | 🇦🇷 Buenos Aires | 2,560 | 2007 |
| 15 | [Café Martínez](https://www.tamtam.ai/c/cafe-martinez) (cafemartinez.com)<br>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 | Food and Beverage Services | 🇦🇷 Buenos Aires | 2,542 | 1933 |
| 16 | [Mirgor](https://www.tamtam.ai/c/mirgor) (mirgor.com)<br>A leading company in the automotive, consumer electronics, and mobile phone sectors, with over 30 years of experience in the local market | Computers and Electronics Manufacturing | 🇦🇷 Buenos Aires | 2,266 | 1983 |
| 17 | [Contreras](https://www.tamtam.ai/c/contreras) (contreras.com.ar)<br>A leading Latin American company specialized in engineering and construction, with expertise in pipelines, compressor plants, industrial assemblies, and infrastructure projects | Construction | 🇦🇷 Buenos Aires | 2,163 | 1947 |
| 18 | [Ministerio de Relaciones Exteriores, Comercio Internacional y Culto de la República Argentina](https://www.tamtam.ai/c/ministerio-de-relaciones-exteriores-comercio-internacional-y-culto-de-la) (cancilleria.gob.ar)<br>The organization is responsible for managing the foreign relations and representation of the country to foreign governments and international organizations | Government Relations Services | 🇦🇷 Buenos Aires | 2,099 |  |
| 19 | [Coppel Arg](https://www.tamtam.ai/c/coppel-arg) (coppel.com.ar)<br>A Mexican department store chain with locations in Argentina, offering a wide variety of products including electronics, furniture, clothing, and footwear | Retail | 🇦🇷 Buenos Aires | 2,088 | 2010 |
| 20 | [Laboratorios Bagó](https://www.tamtam.ai/c/laboratorios-bago) (bago.com.ar)<br>A pharmaceutical company founded in Argentina in 1934, dedicated to research, development, and production of high-quality products for global health | Pharmaceutical Manufacturing | 🇦🇷 Buenos Aires | 1,979 | 1934 |
| 21 | [Cablevisión - Fibertel](https://www.tamtam.ai/c/cablevision-fibertel) (lcc.net.ar)<br>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 |
| 22 | [TASA Logistica S.A](https://www.tamtam.ai/c/tasa-logistica-s-a) (tasalogistica.com)<br>Provides reliable warehouse and transportation solutions with 80 years of experience, supported by strong client relationships and dedicated team. | Transportation, Logistics, Supply Chain and Storage | 🇦🇷 Buenos Aires | 1,737 | 1936 |
| 23 | [Tecpetrol](https://www.tamtam.ai/c/tecpetrol) (tecpetrol.com)<br>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 |
| 24 | [KPMG Argentina](https://www.tamtam.ai/c/kpmg-argentina) (kpmg.com.ar)<br>A professional services firm specializing in Audit, Tax, Legal, and Advisory, helping clients overcome complexity and challenges in Argentina and worldwide | Accounting | 🇦🇷 Buenos Aires | 1,586 | 1987 |
| 25 | [Todomoda](https://www.tamtam.ai/c/todomoda) (todomoda.com)<br>Design, manufacture, and sell trendy women's accessories with sustainable growth and international presence through over 450 stores worldwide. | Retail Apparel and Fashion | 🇦🇷 Buenos Aires | 1,551 | 1995 |
| 26 | [Prisma Medios de Pago](https://www.tamtam.ai/c/prisma-medios-de-pago) (prismamediosdepago.com)<br>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 |
| 27 | [Ualá](https://www.tamtam.ai/c/uala) (uala.com.ar)<br>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 |
| 28 | [TGN](https://www.tamtam.ai/c/tgn) (tgn.com.ar)<br>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 |  |
| 29 | [Gador](https://www.tamtam.ai/c/gador) (gador.com)<br>An Argentine pharmaceutical company producing high-quality medications with cutting-edge technology, distributed nationally and in over 40 countries, partnering with international companies | Pharmaceutical Manufacturing | 🇦🇷 Buenos Aires | 1,291 | 1940 |
| 30 | [ProHygiene](https://www.tamtam.ai/c/prohygiene) (prohygiene.com)<br>Leader in Professional Hygiene with over 30 years of experience, providing innovative solutions for air purifying, sanitizing, hand drying, odor control, and waste management | Professional Services | 🇦🇷 Buenos Aires | 1,206 | 1993 |

## 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.

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- [Hotel and hospitality groups in Buenos Aires](https://www.tamtam.ai/l/hospitality-groups-buenos-aires) (29)
- [Food and Beverage Services companies in Buenos Aires](https://www.tamtam.ai/l/food-and-beverage-services-companies-buenos-aires) (27)
- [Franchise networks in Buenos Aires](https://www.tamtam.ai/l/franchise-networks-buenos-aires) (25)
- [Retail Apparel and Fashion companies in Buenos Aires](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-buenos-aires) (25)

## The same list elsewhere in Argentina

- [Multinational companies in Argentina](https://www.tamtam.ai/l/multinational-companies-argentina) (303)

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Source: https://www.tamtam.ai/l/multinational-companies-buenos-aires