Company lists · Data refreshed September 2026
Top 25 International business law firms based in Argentina
RevenueBase identified 1,191 international business law firms headquartered in Argentina as of September 2026 and tracks 23,116 professional contacts across them, including 3,916 with verified work emails and 111 with mobile numbers. Ciudad Autonoma De Buenos Aires is the largest hub.
This list covers international business law firms headquartered in Argentina, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest international business law firms based in Argentina
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 679 | ||||
“Fundada en 1923, Marval O’Farrell Mairal es la firma legal más grande de la Argentina, líder en el país y también en Latinoamérica.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 298 | ||||
“We are a leading law firm in Argentina, with over 125 years of practice both locally and abroad.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 258 | ||||
“Bruchou & Funes de Rioja es una firma de servicios legales integrales de reputación internacional y líder indiscutido en el mercado.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 223 | ||||
“Nicholson y Cano es una de las firmas full service líderes en Argentina.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 171 | ||||
“Allende & Brea is a leading Argentine full-service law firm with a strong commitment and long-term relationships with its clients since 1957.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 158 | ||||
“Desde sus orígenes en la ciudad de Buenos Aires en 1925, nuestro Estudio se ha destacado como un referente de conocimiento, experiencia y confiabilidad en el mundo de las…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 153 | ||||
“Bomchil is one of the leading law firms in Argentina.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 127 | ||||
“ABBFP & W brinda a sus clientes un asesoramiento global y abarcativo en todas las áreas del derecho.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 119 | ||||
“Somos un Estudio de Abogados full service que asesora a clientes corporativos, con una visión creativa y de alto valor agregado.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 117 | ||||
“Mitrani Caballero is a law firm that provides comprehensive legal advisory services and takes pride in its ability to deliver high value-added services tailored to the specific…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 116 | ||||
“We are a team.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 110 | ||||
“Our Law Firm was established by its founding partners in 1963, and it is nowadays one of the leading and most prestigious law firms in Argentina.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 109 | ||||
“Brons & Salas has been engaged in the practice of law since the sixties.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 67 | ||||
“PASBBA Abogados se encuentra compuesto por profesionales del derecho especializados en todas las áreas del asesoramiento empresarial, con especial dedicación en el derecho…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 60 | ||||
“Los complejos retos empresariales requieren una respuesta integrada en diferentes mercados, sectores y áreas del derecho.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 58 | ||||
“Founded in 2001, RCTZZ is one of the fastest growing law firms in Argentina.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 53 | ||||
“CSM es una consultora de servicios migratorios orientada a asesorar al Cliente de manera integrada, en el marco regulatorio internacional y local, que generalmente se genera en la…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 50 | ||||
“DLA Piper in Latin America’s Team offers full-service business legal counsel to domestic and multinational companies with interests in and operations throughout the region.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 48 | ||||
“Dentons Rattagan Arocena is Argentina's largest global law firm.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 47 | ||||
“Somos una organización con más de 50 años de trayectoria, liderada por un equipo de profesionales experimentados.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 47 | ||||
“JP O´Farrell Abogados is a full-service law firm, with a strong emphasis on corporate, tax, litigation, and labor law.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 46 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | Saenz Valiente & AsociadosIndirect evidence | 45 | |||
“Mr.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | Silva Ortiz, Alfonso, Pavic & LougePartial evidence | 42 | |||
“Silva Ortiz, Alfonso, Pavic & Louge is a law firm that provides legal advisory services in Argentina.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | 41 | ||||
“El Estudio fue fundado por Julián Arturo de Diego en 1975, líder en asesoramiento laboral empresario, con destacada actuación en el logro de resonantes éxitos.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 1,191 international business law firms based in Argentina
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International business law firms based in Argentina at a glance
As of Sep 4, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among international business law firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Argentina whose own description of what they do matches “international business law firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among international business law firms, and records with no verified work email. Companies headquartered outside Argentina are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 3,916 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 4, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
International business law firms by metro
- International business law firms in Ciudad Autonoma De Buenos Aires198
- International business law firms in Buenos Aires172
- International business law firms in Cordoba88
- International business law firms in Capital Federal42
- International business law firms in Rosario42
- International business law firms in Caba39
- International business law firms in Ciudad De Buenos Aires38
- International business law firms in Aires32
- International business law firms in Buenos27
Frequently asked
How many international business law firms are there based in Argentina?
RevenueBase identified 1,191 international business law firms headquartered in Argentina as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Marval O'farrell, Mairal, headquartered in Ciudad De Buenos Aires, tops this list with the largest team on record.
Which city has the most international business law firms?
Ciudad Autonoma De Buenos Aires leads with 198 headquartered companies, followed by Buenos Aires (172) and Cordoba (88).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,916 verified decision-maker contacts tracked across these 1,191 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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