Company lists · Data refreshed September 2026

Top 25 Big 4 law firms based in Brazil

Name: Big 4 law firms based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 8,960 companies tracked

RevenueBase identified 8,960 big 4 law firms headquartered in Brazil as of September 2026 and tracks 106,832 professional contacts across them, including 30,898 with verified work emails and 1,053 with mobile numbers. Sao Paulo is the largest hub.

This list covers big 4 law firms headquartered in 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review

8,960Companies

106,832Contacts tracked

30,898Verified emails

1,053Mobile numbers

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The 25 largest big 4 law firms based in Brazil

Ranked by team size

Top 25 of 8,960 big 4 law firms based in Brazil, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to big 4 law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Nelson Wilians Advogados	Indirect evidence	São Paulo, BrazilHQ checked Sep 23, 2026	1,001-5,000	2,267 contacts →
	Indirect evidence “Desde a NWADV transforma desafios jurídicos complexos em decisões mais seguras para empresas nacionais e internacionais.” Source: RevenueBase Database · checked Sep 23, 2026
2	Tozzinifreire Advogados	Partial evidence	São Paulo, BrazilHQ checked Sep 23, 2026	1,001-5,000	1,580 contacts →
	Partial evidence “TozziniFreire is one of the leading legal services organizations in Latin America, operating in all areas of Business Law and with a significant track record in serving national…” Source: RevenueBase Database · checked Sep 23, 2026
3	Mattos Filho	Indirect evidence	São Paulo, BrazilHQ checked Sep 23, 2026	1,001-5,000	1,553 contacts →
	Indirect evidence “Somos um dos escritórios de advocacia líderes do mercado brasileiro, estruturado para atender nossos clientes em mais de 45 áreas do Direito, de maneira coordenada e integrada.” Source: RevenueBase Database · checked Sep 23, 2026
4	Martinelli Advogados	Indirect evidence	Joinville, BrazilHQ checked Sep 23, 2026	1,001-5,000	1,305 contacts →
	Indirect evidence “O Martinelli Advocacia Empresarial (OAB-SC 252/97) é um moderno escritório de advocacia fundado em Joinville, Santa Catarina.” Source: RevenueBase Database · checked Sep 23, 2026
5	Machado Meyer Advogados	Indirect evidence	São Paulo, BrazilHQ checked Sep 23, 2026	1,001-5,000	1,304 contacts →
	Indirect evidence “Offering legal intelligence goes far beyond a purpose built up over the course of our history: it allows us to develop innovative solutions, in line with market developments and…” Source: RevenueBase Database · checked Sep 23, 2026
6	Pinheiro Neto Advogados	Indirect evidence	São Paulo, BrazilHQ checked Sep 23, 2026	1,001-5,000	1,250 contacts →
	Indirect evidence “Pinheiro Neto Advogados é um escritório brasileiro com sólida experiência em mais de 40 áreas do Direito Empresarial.” Source: RevenueBase Database · checked Sep 23, 2026
7	Urbano Vitalino Advogados	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 23, 2026	1,001-5,000	1,242 contacts →
	Indirect evidence “Com 88 anos de experiência, o Urbano Vitalino Advogados tem como marca sua vasta tradição jurídica.” Source: RevenueBase Database · checked Sep 23, 2026
8	BMA Advogados	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 23, 2026	501-1,000	840 contacts →
	Partial evidence “Founded in 1995, BMA – Barbosa Müssnich Aragão is now one of the foremost law firms in Latin America.” Source: RevenueBase Database · checked Sep 23, 2026
9	Ferreira E Chagas Advogados	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 23, 2026	1,001-5,000	827 contacts →
	Indirect evidence “A crescente complexidade das relações, tanto humanas como empresariais, cria, cada vez mais, questões revestidas de cunho intrinsecamente jurídico, com implicações em todos os…” Source: RevenueBase Database · checked Sep 23, 2026
10	Siqueiracastro	Indirect evidence	São Paulo, BrazilHQ checked Sep 23, 2026	1,001-5,000	821 contacts →
	Indirect evidence “We can say with pride and confidence: in more than 70 years of history, SiqueiraCastro Advogados has played a fundamental role in the evolution of the legal market in Brazil.” Source: RevenueBase Database · checked Sep 23, 2026
11	Lee, Brock E Camargo Advogados	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 23, 2026	501-1,000	811 contacts →
	Indirect evidence “Fundada em 2003, a Lee, Brock, Camargo Advogados é uma associação de profissionais com habilidades multidisciplinares desenvolvidas em escritórios de advocacia e empresas e que…” Source: RevenueBase Database · checked Sep 23, 2026
12	Chalfin, Goldberg & Vainboim Advogados	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 23, 2026	501-1,000	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, 2026
13	Veirano Advogados	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 23, 2026	501-1,000	772 contacts →
	Partial evidence “Veirano Advogados is one of the leading and most renowned Brazilian business law firms, focused on developing tailored solutions for multinational companies operating in strategic…” Source: RevenueBase Database · checked Sep 23, 2026
14	Lefosse	Partial evidence	São Paulo, BrazilHQ checked Sep 23, 2026	501-1,000	720 contacts →
	Partial evidence “We are an independent law firm that offers specialized advice and superior technical quality in a variety of legal areas.” Source: RevenueBase Database · checked Sep 23, 2026
15	Escritório DE Advocacia	Indirect evidence	Recife, BrazilHQ checked Sep 23, 2026	n/a	648 contacts →
	Indirect evidence “Precisa de um Advogado?” Source: RevenueBase Database · checked Sep 23, 2026
16	Reis Advogados	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 23, 2026	501-1,000	642 contacts →
	Indirect evidence “O Reis Advogados possui mais de 50 anos de experiência e atua em diversas áreas do Direito, sendo: Direito Bancário, Imobiliário, Digital, Trabalhista Empresarial, Seguros…” Source: RevenueBase Database · checked Sep 23, 2026
17	vezzilapolla.legal	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 23, 2026	201-500	634 contacts →
	Indirect evidence “vezzilapolla.legal foi fundado em 2016, e conta atualmente com cerca de 600 profissionais.” Source: RevenueBase Database · checked Sep 23, 2026
18	Advocacia	Partial evidence	Florianopolis, BrazilHQ checked Sep 23, 2026	n/a	613 contacts →
	Partial evidence “Advocacia is a law practice company based out of Av Rio Branco, 441, Florianopolis, Sc, Brazil.” Source: RevenueBase Database · checked Sep 23, 2026
19	FFA Ferrareze E Freitas	Indirect evidence	São Paulo, BrazilHQ checked Sep 23, 2026	201-500	564 contacts →
	Indirect evidence “SOBRE O FFA O início das atividades remonta ao ano de 1982, na cidade de Passo Fundo, Planalto Médio do Rio Grande do Sul.” Source: RevenueBase Database · checked Sep 23, 2026
20	RMS Advogados	Partial evidence	Fortaleza, BrazilHQ checked Sep 23, 2026	501-1,000	555 contacts →
	Partial evidence “Rocha, Marinho E Sales (RMS) is a highly qualified corporate law firm with over 900 professionals located in 10 offices across the Brazilian territory, supported by a broad…” Source: RevenueBase Database · checked Sep 23, 2026
21	Schulze Advogados Associados	Indirect evidence	Joinville, BrazilHQ checked Sep 23, 2026	201-500	547 contacts →
	Indirect evidence “A SCHULZE ADVOGADOS ASSOCIADOS, iniciou suas atividades em Joinville/SC em 1991.” Source: RevenueBase Database · checked Sep 23, 2026
22	Bichara Advogados	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 23, 2026	201-500	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, 2026
23	Vigna Advogados Associados	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 23, 2026	201-500	529 contacts →
	Indirect evidence “VISÃO Ser referênte nas soluções juridicas empresariais, agregando valores para nossos parceiros, com ética e excelência na prestação de serviços.” Source: RevenueBase Database · checked Sep 23, 2026
24	Mascarenhas Barbosa Advogados	Indirect evidence	Campo Grande, BrazilHQ checked Sep 23, 2026	501-1,000	522 contacts →
	Indirect evidence “O escritório Mascarenhas Barbosa & Advogados Associados, criado no ano de é uma evolução do escritório jurídico inaugurado pelo advogado Gualter Mascarenhas Barbosa em 1968, ao…” Source: RevenueBase Database · checked Sep 23, 2026
25	Marcelo Tostes Advogados	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 23, 2026	201-500	518 contacts →
	Indirect evidence “Fundado em o Marcelo Tostes Advogados firmou-se como um escritório de advocacia empresarial de excelência.” Source: RevenueBase Database · checked Sep 23, 2026

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 4 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 4 law firms.
Partial evidence: Its own public description names part of big 4 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 4 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 8,960 big 4 law firms based in Brazil

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Big 4 law firms based in Brazil at a glance

As of Sep 23, 2026

28.9%Verified-email coverage

1.0%Mobile-number coverage

11.9Average contacts per company

1-10Median size (employees)

33.6%Largest-city concentration · Sao Paulo

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

8,249

11-50

3,587

51-200

578

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 25.0d

22,7840–30

7,30331–60

73661–90

1890–180

57180+

Company record updated

Median 90.0d

00–30

4,21631–60

54,29261–90

41,69290–180

6,632180+

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 4 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 Brazil whose own description of what they do matches “big 4 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 4 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 4 law firms, and records with no verified work email. Companies headquartered outside Brazil 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, 30,898 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 4 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 4 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 4 law firms are there based in Brazil?

RevenueBase identified 8,960 big 4 law firms headquartered in 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?

Nelson Wilians Advogados, headquartered in Brazil, tops this list with the largest team on record.

Which city has the most big 4 law firms?

Sao Paulo leads with 3012 headquartered companies, followed by Rio De Janeiro (885) and Curitiba (617).

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 30,898 verified decision-maker contacts tracked across these 8,960 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.