Company lists · Data refreshed September 2026
Top 22 Big law firms based in Argentina
RevenueBase identified 644 big law firms headquartered in Argentina as of September 2026 and tracks 20,503 professional contacts across them, including 3,631 with verified work emails and 76 with mobile numbers. Ciudad Autonoma De Buenos Aires is the largest hub.
This list covers big 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 23, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 22 largest big law firms based in Argentina
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 688 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 2 | 299 contacts → | ||||
Partial evidence “We are a leading law firm in Argentina, with over 125 years of practice both locally and abroad.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 3 | 259 contacts → | ||||
Indirect evidence “Bruchou & Funes de Rioja es una firma de servicios legales integrales de reputación internacional y líder indiscutido en el mercado.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 4 | 161 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 5 | 127 contacts → | ||||
Indirect evidence “ABBFP & W brinda a sus clientes un asesoramiento global y abarcativo en todas las áreas del derecho.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 6 | 119 contacts → | ||||
Indirect evidence “We are a team.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 7 | 118 contacts → | ||||
Indirect evidence “Somos un Estudio de Abogados full service que asesora a clientes corporativos, con una visión creativa y de alto valor agregado.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 8 | 59 contacts → | ||||
Indirect evidence “Los complejos retos empresariales requieren una respuesta integrada en diferentes mercados, sectores y áreas del derecho.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 9 | 58 contacts → | ||||
Partial evidence “Founded in 2001, RCTZZ is one of the fastest growing law firms in Argentina.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 10 | 49 contacts → | ||||
Partial evidence “Dentons Rattagan Arocena is Argentina's largest global law firm.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 11 | 48 contacts → | ||||
Indirect evidence “Somos una organización con más de 50 años de trayectoria, liderada por un equipo de profesionales experimentados.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 12 | 46 contacts → | ||||
Partial evidence “JP O´Farrell Abogados is a full-service law firm, with a strong emphasis on corporate, tax, litigation, and labor law.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 13 | 37 contacts → | ||||
Indirect evidence “Founded in 1975, Zang Bergel & Viñes Abogados is one of Argentina´s leading legal service firms.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 14 | 33 contacts → | ||||
Indirect evidence “FRTB is an IP boutique which handles a wide variety of work ranging from trade mark and patent filings, to complex IP litigation and advice in data protection, domain names…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 15 | 31 contacts → | ||||
Indirect evidence “Juan McEwan fue pionero en desarrollar en Argentina la prestación de servicios legales y fiscales orientados a clientes privados.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 16 | 29 contacts → | ||||
Indirect evidence “FJ Cárrega & Asociados -Abogados- ha tenido un crecimiento sostenido en los últimos años, siempre con apoyo en la confianza de sus clientes.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 17 | 29 contacts → | ||||
Indirect evidence “Pozo Gowland Abogados es un estudio jurídico integrado por profesionales de reconocida trayectoria orientados al asesoramiento y atención integral de la empresa en materia legal.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 contacts → | ||||
Indirect evidence “Firma legal compuesta por profesionales de destacada trayectoria, especializada en asesoramiento corporativo, derecho de la insolvencia, conflictos societarios y litigios…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 19 | 25 contacts → | ||||
Partial evidence “Our Law Firm has been providing legal services since 1981, and its prestige is recognized today by professionals and clients alike.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 20 | 25 contacts → | ||||
Indirect evidence “En NTMA sostenemos una filosofía de trabajo fundada en cuatro pilares: profesionalidad y calidad en el servicio, trabajo en equipo, trato personalizado y eficacia en la resolución…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 21 | 25 contacts → | ||||
Partial evidence “Severgnini, Robiola, Grinberg & Tombeur is one of the leading law firms in Argentina and was founded in 1925 by Alberto Severgnini and Mario Robiola.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 22 | 24 contacts → | ||||
Partial evidence “We are a Law Firm of professionals with long-standing experience in the field and innovative and creative style, focused on finding efficient solutions.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: big law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names big law firms.
- Partial evidence
- Its own public description names part of big law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name big law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 22 of 644 big law firms based in Argentina
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Big law firms based in Argentina at a glance
As of Sep 23, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 25.0dCompany record updated
Median 95.0dHow 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 big law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Argentina whose own description of what they do matches “big law firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names big law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among big 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 its RevenueBase Smart Search 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, 3,631 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 23, 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.
Big law firms by metro
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names big law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many big law firms are there based in Argentina?
RevenueBase identified 644 big 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 big law firms?
Ciudad Autonoma De Buenos Aires leads with 110 headquartered companies, followed by Buenos Aires (89) and Cordoba (50).
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 3,631 verified decision-maker contacts tracked across these 644 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 23, 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 Smart Search, 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.