Company lists · Data refreshed September 2026
Top 25 Big six law firms based in Rio De Janeiro, Brazil
RevenueBase identified 338 big six law firms headquartered in Rio De Janeiro, Brazil as of September 2026 and tracks 6,965 professional contacts across them, including 2,483 with verified work emails. Sao Paulo is the largest hub.
This list covers big six law firms headquartered in Rio De Janeiro, Brazil, 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 25 largest big six law firms based in Rio De Janeiro, Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 799 contacts → | ||||
Partial evidence “Through hard work and dedication over the past 15 years, Chalfin, Goldberg & Vainboim Advogados (“CGV“) has achieved a leading position among the biggest and best Brazilian law…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 2 | 531 contacts → | ||||
Indirect evidence “For more than 20 years, we have built a trajectory based on values and ethical principles.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 3 | 386 contacts → | ||||
Indirect evidence “Foi em 1909, na cidade do Rio de Janeiro, que o renomado comercialista Hermano de Villemor Amaral inaugurou o Escritório.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 4 | 335 contacts → | ||||
Partial evidence “Licks Attorneys is a top-tier Brazilian law firm widely recognized for successfully handling large and strategic Intellectual Property, Life Sciences, Food & Drug, Regulatory…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 5 | 258 contacts → | ||||
Indirect evidence “Innovators by nature, we seek to apply creativity and multidisciplinary approach to various projects.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 6 | 214 contacts → | ||||
Indirect evidence “Fundado em 1959, Ulhôa Canto Advogados é referência em advocacia empresarial.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 7 | 170 contacts → | ||||
Indirect evidence “Reinventando o Direito.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 8 | 153 contacts → | ||||
Indirect evidence “Em 1995, em meio às mudanças que definiram a nova economia brasileira, nascia o Vieira Rezende Advogados.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 9 | 149 contacts → | ||||
Indirect evidence “Referência entre os escritórios brasileiros, o Maneira Advogados se destaca por sua atuação ampla e diversificada, contando com equipes altamente especializadas para oferecer…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 10 | 149 contacts → | ||||
Partial evidence “Law firm with strategic expertise across multiple areas of law, providing personalized legal counsel to domestic and international companies and clients, with a focus on…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 11 | 141 contacts → | ||||
Indirect evidence “Gustavo Padilha Advogados has a culture of its own, with a pro-business approach resulting from a wide interaction between its different practice areas.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 12 | 126 contacts → | ||||
Indirect evidence “Especializados em Direito Empresarial, concentramos em um único Escritório todas as soluções jurídicas que sua empresa pode precisar.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 13 | 104 contacts → | ||||
Indirect evidence “Bocater Advogados foi fundado em com foco em direito societário e mercado de capitais.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 14 | 97 contacts → | ||||
Indirect evidence “DSMA Azulay Advogados é um escritório de advocacia formado por profissionais altamente especializados nos ramos do direito civil, tributário, administrativo, imobiliário…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 15 | 87 contacts → | ||||
Indirect evidence “Fundado em 2007, Brandão Couto, Wigderowitz & Pessoa Advogados busca, desde então, prestar atendimento personalizado e de excelência aos seus clientes, priorizando sempre os…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 16 | 83 contacts → | ||||
Indirect evidence “Bhering Advogados was founded in 1978 and practices in all fields of Intellectual Property and related matters, including trademarks, patents, industrial designs, copyright and…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 17 | 78 contacts → | ||||
Indirect evidence “Somos um escritório multidisciplinar, atento aos novos desafios de um mundo cada vez mais dinâmico.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 18 | 64 contacts → | ||||
Indirect evidence “Fux Advogados nasceu da combinação das experiências profissionais acumuladas por Rodrigo Fux e Leonel Pittzer em litígios de alta complexidade, cada qual em sua especialidade.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 19 | 63 contacts → | ||||
Indirect evidence “Somos um escritório de advocacia com atuação em diversos segmentos da economia.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 20 | 59 contacts → | ||||
Indirect evidence “Our firm, Luiz Leonardos & Advogados, with 15 partners - including attorneys and patent attorneys in different fields, such as electrical and chemical engineer and biology - and…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 21 | 55 contacts → | ||||
Indirect evidence “A Arrighi Advogados, constituída há mais de 10 anos, destaca-se no mercado jurídico por sua eficiência, qualidade profissional e pelo atendimento personalizado.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 22 | 52 contacts → | ||||
Indirect evidence “Motivado pela prestação de serviços jurídicos com integridade e qualidade, surge em janeiro de 2014 o TAGD Advogados (Terciotti Andrade Gomes Donato Advogados).” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 23 | 51 contacts → | ||||
Indirect evidence “Fundado em 2008, o escritório Vieira de Castro, Mansur & Faver Advogados (VCMF) atua nas principais áreas do Direito Empresarial Atualmente amparados por equipes…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 24 | 50 contacts → | ||||
Indirect evidence “O Bhering Cabral Advogados Associados foi fundado em 2003 com uma filosofia de trabalho bem definida que coloca o cliente no foco.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 25 | 43 contacts → | ||||
Indirect evidence “Somos um escritório de advocacia contenciosa corporativa especializado em gestão jurídica, prevenção, redução de passivo e recuperação de créditos.” 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 six 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 six law firms.
- Partial evidence
- Its own public description names part of big six 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 six 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 25 of 338 big six law firms based in Rio De Janeiro, Brazil
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Big six law firms based in Rio De Janeiro, Brazil at a glance
As of Sep 23, 2026Companies by employee count
Email recency for this list is measured across the whole Brazil list rather than for Rio De Janeiro, so it is reported there. Company counts and contact totals on this page are exact for Rio De Janeiro, over 338 companies.
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 big six 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 Rio De Janeiro, Brazil whose own description of what they do matches “big six 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 six 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 six law firms, and records with no verified work email. Companies headquartered outside Rio De Janeiro 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, 2,483 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 six law firms by metro in Brazil
- Big six law firms in Sao Paulo1166
- Big six law firms in Rio De Janeiro338
- Big six law firms in Curitiba226
- Big six law firms in Belo Horizonte214
- Big six law firms in Porto Alegre172
- Big six law firms in Campinas114
- Big six law firms in Brasilia109
- Big six law firms in Recife90
- Big six law firms in Fortaleza80
- Big six law firms in Salvador79
- Big six law firms in Goiania75
- Big six law firms in Florianopolis64
- Big six law firms in Ribeirao Preto42
- Big six law firms in Londrina39
- Big six law firms in Vitoria38
- Big six law firms in Sao Jose Do Rio Preto30
- Big six law firms in Belem28
- Big six law firms in Barueri26
- Big six law firms in Santo Andre26
- Big six law firms in Uberlandia26
- Big six law firms in Caxias Do Sul25
- Big six law firms in Guarulhos25
- Big six law firms in Joinville25
- Big six law firms in Sao Bernardo Do Campo25
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 six 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 six law firms are there based in Rio De Janeiro, Brazil?
RevenueBase identified 338 big six law firms headquartered in Rio De Janeiro, Brazil 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?
Chalfin, Goldberg & Vainboim Advogados, headquartered in Rio De Janeiro, tops this list with the largest team on record.
Which city has the most big six law firms?
Sao Paulo leads with 1166 headquartered companies, followed by Rio De Janeiro (338) and Curitiba (226).
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 2,483 verified decision-maker contacts tracked across these 338 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.