Company lists · Data refreshed September 2026
Top 25 Merger acquisition law firms based in Rio De Janeiro, Brazil
RevenueBase identified 148 merger acquisition law firms headquartered in Rio De Janeiro, Brazil as of September 2026 and tracks 2,064 professional contacts across them, including 823 with verified work emails. Across Brazil, Sao Paulo is the largest hub for this category (742 companies); Rio De Janeiro follows with 148.
This list covers merger acquisition 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 28, 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 merger acquisition law firms based in Rio De Janeiro, Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 214 contacts → | ||||
Indirect evidence “Fundado em 1959, Ulhôa Canto Advogados é referência em advocacia empresarial.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 170 contacts → | ||||
Indirect evidence “Reinventando o Direito.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 104 contacts → | ||||
Indirect evidence “Bocater Advogados foi fundado em com foco em direito societário e mercado de capitais.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 34 contacts → | ||||
Indirect evidence “Founded in 2014, Mello Alves, Erthal & Morett Advogados has an experient and consolidated professional staff in the national legal community, offering a wide-ranging and modern…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 32 contacts → | ||||
Indirect evidence “Com atuação nas principais áreas do Direito Corporativo, tanto na esfera preventiva quanto consultiva e contenciosa, o escritório alia a vida acadêmica com a experiência prática…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 28 contacts → | ||||
Indirect evidence “Fundado em 1995 pelo advogado Renato Anet, o Anet Mattos Advogados consolidou sua trajetória oferecendo assessoria jurídica estratégica e personalizada para empresas de diversos…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 27 contacts → | ||||
Indirect evidence “A Bodas Chaves Sociedade de Advogados atua na assessoria jurídica a diversas empresas de portes diversificados, nacionais e estrangeiras, desde a década de 80, tendo larga…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 25 contacts → | ||||
Indirect evidence “FTR é fruto da união de profissionais comprometidos com a excelência na prestação de serviços advocatícios há mais de 30 anos.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 contacts → | ||||
Strong evidence “We offer a customized and high quality service in the main practice areas of corporate law, focusing on mergers and acquisitions, investments, financing, companies’ and debt…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 contacts → | ||||
Partial evidence “Ouro Preto Paranhos Advogados was founded through the merger of Ouro Preto Advogados, established in 2011, and Esper Paranhos Gushiken (EPG) Advogados, founded in 2019.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 19 contacts → | ||||
Indirect evidence “Um escritório Corporate Legal Counsel Moderno e de relacionamento próximo ao seu cliente.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 18 contacts → | ||||
Indirect evidence “Com escritórios nas cidades do Rio de Janeiro e São Paulo, Eizirik Advogados atende clientes do Brasil e do exterior, sendo especializado na elaboração de pareceres jurídicos em…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 18 contacts → | ||||
Indirect evidence “Desde 2005, o Matos e Daixum Advogados (MDA) é parceiro jurídico de empresas que exigem estratégia, velocidade e segurança.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 18 contacts → | ||||
Indirect evidence “Lampert Advogados é um escritório fundado por um time multidisciplinar de advogados que une a inovação com a experiência.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 contacts → | ||||
Indirect evidence “Com mais de 35 anos de trajetória de significativas realizações, Firmo Advogados teve por foco inicial a assessoria a empresas do segmento de bebidas, com subsequente expansão a…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 14 contacts → | ||||
Indirect evidence “Fundado em 2013, o GCC Advogados nasceu com a missão de romper padrões negativos da advocacia tradicional, oferecendo serviços jurídicos que aliam inovação, confiança e excelência.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 13 contacts → | ||||
Partial evidence “Barbosa Sociedade de Advogados is a law firm specialized in corporate and securities law, and capital markets' matters.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 11 contacts → | ||||
Indirect evidence “A RRZ Consultoria, fundada em outubro de 2012 como uma empresa especializada no mercado de serviços financeiros, reunindo profissionais com larga experiência na área, oferecendo…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Indirect evidence “REZENDE E COSTA ADVOGADOS é um escritório de advocacia boutique especializado em direito empresarial, fruto da união da larga expertise de seus fundadores, Guilherme Rezende e…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “A Bittencourt & Barbosa Advogados & Associados oferece aos seus clientes a assessoria legal e financeira necessária na avaliação dos riscos relacionados a negócios societários…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 contacts → | ||||
Indirect evidence “No Vieira Coelho Advogados, acreditamos que a advocacia deve ir além da solução de conflitos e da interpretação da legislação: deve gerar valor para os negócios, oferecendo…” Source: RevenueBase Database · checked Sep 28, 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: merger acquisition 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 merger acquisition law firms.
- Partial evidence
- Its own public description names part of merger acquisition law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name merger acquisition 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 148 merger acquisition law firms based in Rio De Janeiro, Brazil
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Merger acquisition law firms based in Rio De Janeiro, Brazil at a glance
As of Sep 28, 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 148 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 merger acquisition 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 “merger acquisition 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 merger acquisition 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 merger acquisition 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, 823 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 28, 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.
Merger acquisition law firms by metro in Brazil
- Merger acquisition law firms in Sao Paulo742
- Merger acquisition law firms in Curitiba143
- Merger acquisition law firms in Belo Horizonte140
- Merger acquisition law firms in Porto Alegre114
- Merger acquisition law firms in Campinas68
- Merger acquisition law firms in Brasilia46
- Merger acquisition law firms in Salvador45
- Merger acquisition law firms in Recife42
- Merger acquisition law firms in Fortaleza37
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 merger acquisition 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 merger acquisition law firms are there based in Rio De Janeiro, Brazil?
RevenueBase identified 148 merger acquisition 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?
Villemor Amaral Advogados, headquartered in Rio De Janeiro, tops this list with the largest team on record.
Which city in Brazil has the most merger acquisition law firms?
Sao Paulo leads Brazil with 742 headquartered companies, followed by Rio De Janeiro (148) and Curitiba (143).
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 823 verified decision-maker contacts tracked across these 148 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 28, 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.
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