Company lists · Data refreshed September 2026
Top 23 Tax law firms based in Argentina
RevenueBase identified 767 tax law firms headquartered in Argentina as of September 2026 and tracks 7,685 professional contacts across them, including 2,027 with verified work emails and 39 with mobile numbers. Ciudad Autonoma De Buenos Aires is the largest hub.
This list covers tax 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 6, 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 23 largest tax law firms based in Argentina
Ranked by team size| # | Company | RevenueBase Smart Search | Contacts | ||
|---|---|---|---|---|---|
| 1 | Indirect evidence | 688 contacts → | |||
“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 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Indirect evidence | 553 contacts → | |||
“Somos una firma de profesionales altamente especializados y comprometidos con las necesidades de nuestros clientes.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Partial evidence | 299 contacts → | |||
“We are a leading law firm in Argentina, with over 125 years of practice both locally and abroad.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Indirect evidence | 259 contacts → | |||
“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 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Indirect evidence | 175 contacts → | |||
“Somos SMS Buenos Aires, firma especializada en servicios de auditoría, asesoramiento fiscal y consultoría para empresas, con presencia internacional.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | Indirect evidence | 161 contacts → | |||
“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 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Indirect evidence | 127 contacts → | |||
“ABBFP & W brinda a sus clientes un asesoramiento global y abarcativo en todas las áreas del derecho.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Indirect evidence | 124 contacts → | |||
“WNS & Asociados se encuentra en la constante búsqueda de las mejores perspectivas, el más alto nivel de sofisticación y eficacia en las soluciones propuestas y a tal efecto…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Partial evidence | 58 contacts → | |||
“Founded in 2001, RCTZZ is one of the fastest growing law firms in Argentina.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Indirect evidence | 50 contacts → | |||
“Somos una firma profesional especializada en consultoría tributaria y de negocios, líder en estrategia fiscal.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | Indirect evidence | 48 contacts → | |||
“Somos una organización con más de 50 años de trayectoria, liderada por un equipo de profesionales experimentados.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Strong evidence | 46 contacts → | |||
“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 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Indirect evidence | 41 contacts → | |||
“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 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Indirect evidence | 31 contacts → | |||
“Juan McEwan fue pionero en desarrollar en Argentina la prestación de servicios legales y fiscales orientados a clientes privados.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Indirect evidence | 29 contacts → | |||
“FJ Cárrega & Asociados -Abogados- ha tenido un crecimiento sostenido en los últimos años, siempre con apoyo en la confianza de sus clientes.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Indirect evidence | 26 contacts → | |||
“Somos una firma multidisciplinaria integrada por abogados y contadores que, desde hace más de dos décadas, lidera el asesoramiento estratégico a individuos, familias y empresas en…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Indirect evidence | 26 contacts → | |||
“Estudio Contable especializado en las areas de Auditoría, Impuestos y Sueldos, con el apoyo en materia juridica del Dr.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Indirect evidence | 26 contacts → | |||
“Firma legal compuesta por profesionales de destacada trayectoria, especializada en asesoramiento corporativo, derecho de la insolvencia, conflictos societarios y litigios…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Indirect evidence | 25 contacts → | |||
“Conforto, Fissore y Asociados" es una organización integral dedicada a la auditoría y consultoría impositiva, contable y gestión empresarial.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Indirect evidence | 24 contacts → | |||
“BIENVENIDOS En PASCUAL FICHERA & ASOCIADOS acompañamos y supervisamos en forma permanente los requerimientos y necesidades de los clientes.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Indirect evidence | 23 contacts → | |||
“El Estudio Lévy Guido & Lévy inició sus actividades en 1952.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Indirect evidence | 23 contacts → | |||
“Estudio Peri & Asociados fue fundado en 1982 por Gustavo A.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Indirect evidence | 22 contacts → | |||
“Somos un grupo de profesionales en ciencias económicas que nos especializamos en brindar servicios de alto valor agregado en el área de Impuestos, Precios de Transferencia y…” Source: company website · checked Sep 6, 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: tax 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 tax law firms.
- Partial evidence
- Its own public description names part of tax law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name tax 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 23 of 767 tax law firms based in Argentina
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Tax law firms based in Argentina at a glance
As of Sep 6, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 tax 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 “tax 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 tax 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 tax 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, 2,027 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 6, 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.
Tax law firms by metro
- Tax law firms in Ciudad Autonoma De Buenos Aires128
- Tax law firms in Buenos Aires103
- Tax law firms in Cordoba46
- Tax law firms in Capital Federal25
- Tax law firms in Rosario25
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 tax 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 tax law firms are there based in Argentina?
RevenueBase identified 767 tax 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 tax law firms?
Ciudad Autonoma De Buenos Aires leads with 128 headquartered companies, followed by Buenos Aires (103) and Cordoba (46).
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 2,027 verified decision-maker contacts tracked across these 767 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 6, 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.