Company lists · Data refreshed September 2026
Top 25 Union labor law firms based in Brazil
RevenueBase identified 2,377 union labor law firms headquartered in Brazil as of September 2026 and tracks 15,345 professional contacts across them, including 2,765 with verified work emails. Sao Paulo is the largest hub.
This list covers union labor 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 29, 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 union labor law firms based in 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 299 contacts → | ||||
Indirect evidence “Referência nacional em Direito do Trabalho Em dez anos de atividades, o escritório Pipek, Penteado e Paes Manso Advogados Associados, já se tornou uma das principais referências…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 296 contacts → | ||||
Indirect evidence “Nossa história começa a partir do encontro de Maria Helena Autuori e Marcia Sanz Burmann, que juntas fundaram um escritório que advoga com entusiasmo e excelência na Área…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 255 contacts → | ||||
Indirect evidence “Um dos maiores e mais tradicionais escritórios de advocacia do país, o Olimpio de Azevedo Advogados é responsável pelo patrocínio de um número superior a 50 mil demandas, tendo…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 212 contacts → | ||||
Indirect evidence “Fundado em 2009 pelos sócios William Carmona Maya, Fernando Denis Martins e Felipe Navega Medeiros, o escritório atua em todo o território nacional e conta com profissionais…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 108 contacts → | ||||
Indirect evidence “A Advocacia Castro Neves, Dal Mas, é um dos escritórios mais admirados do Brasil, sua fundação ocorreu em 1937 pelo Ministro do Trabalho Dr.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 108 contacts → | ||||
Indirect evidence “O Küster Machado Advogados tem mais de 35 anos de atuação nacional e abrangente com foco no atendimento corporativo, mesclando a expertise em contencioso com a especialização da…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 96 contacts → | ||||
Indirect evidence “O escritório, fundado em 1993, nasceu em Campinas/SP como a primeira terceirização de serviços da Robert Bosch Ltda, após o Dr.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 92 contacts → | ||||
Indirect evidence “Fundada pelo professor e advogado Victor Russomano Jr.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 76 contacts → | ||||
Indirect evidence “A Resende Mori Hutchison Advocacia atua há mais de 30 anos defendendo você e os seus direitos.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 69 contacts → | ||||
Indirect evidence “No BBMD Advogados, somos especialistas em direito trabalhista bancário, dedicados a defender os direitos dos trabalhadores com comprometimento e eficiência.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 67 contacts → | ||||
Indirect evidence “O escritório Tocantins Advogados possui dedicação especializada nas áreas do Direito e do Processo do Trabalho, além da área de Contencioso Cível, e a sua equipe de profissionais…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 66 contacts → | ||||
Indirect evidence “O escritório Bogo Advocacia e Consultoria completa 19 anos, com forte atuação nas áreas de direito civil, direito de trabalho, direito previdenciário e direito administrativo…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 65 contacts → | ||||
Indirect evidence “Atuando no meio jurídico desde o ano de 1996, nossa missão é buscar, através de uma advocacia ágil quanto ao tempo de tramitação dos processos, os melhores resultados financeiros…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 62 contacts → | ||||
Indirect evidence “Chiode Minicucci Advogados é composto por mais de 50 profissionais focados apenas na advocacia trabalhista empresarial, com advogados próprios em São Paulo, Rio de Janeiro…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 62 contacts → | ||||
Indirect evidence “Com mais de 25 anos de experiência, com unidades em São Paulo, Campinas, Brasília e Ribeirão Preto, Crivelli Advogados Associados é referência em Direito do Trabalho e Direito…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 61 contacts → | ||||
Indirect evidence “Somos um escritório de advocacia dedicado única e exclusivamente à defesa dos interesses de servidores públicos, agentes públicos e suas entidades de representação (associação ou…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 58 contacts → | ||||
Indirect evidence “Advocacia para empresas, especializada no Contencioso de massa.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 57 contacts → | ||||
Indirect evidence “A Marquesi Cálculos e Perícias é uma empresa de consultoria e assessoria.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 55 contacts → | ||||
Indirect evidence “Barreto Advogados & Consultores Associados é uma referência em Direito do Trabalho no Brasil.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 contacts → | ||||
Indirect evidence “Desde sua fundação em 1991 pelo advogado Mauro Cerdeira, o escritório Cerdeira, Rocha, Vendite, Barbosa, Borgo e Etchalus Advogados vem construindo relações sólidas, duradouras e…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 48 contacts → | ||||
Indirect evidence “Nosso Escritório foi constituído em Porto Alegre (RS) em 1989, tendo como fundadores os advogados Raquel Paese, Glênio Ohlweiler Ferreira e Renato Kliemann Paese.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 47 contacts → | ||||
Indirect evidence “A história da Advocacia Riedel está diretamente ligada a de seu fundador, Ulisses Riedel de Resende, um dos mais prestigiados advogados trabalhistas do país.” Source: RevenueBase Database · checked Sep 29, 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: union labor 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 union labor law firms.
- Partial evidence
- Its own public description names part of union labor law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name union labor 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 2,377 union labor law firms based in Brazil
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Union labor law firms based in Brazil at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 2,377 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 union labor 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 “union labor 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 union labor 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 union labor 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, 2,765 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 29, 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.
Union labor law firms by metro
- Union labor law firms in Sao Paulo489
- Union labor law firms in Rio De Janeiro162
- Union labor law firms in Curitiba115
- Union labor law firms in Porto Alegre111
- Union labor law firms in Belo Horizonte91
- Union labor law firms in Campinas73
- Union labor law firms in Brasilia50
- Union labor law firms in Recife47
- Union labor law firms in Salvador41
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 union labor 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 union labor law firms are there based in Brazil?
RevenueBase identified 2,377 union labor 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?
Chalfin, Goldberg & Vainboim Advogados, headquartered in Rio De Janeiro, tops this list with the largest team on record.
Which city has the most union labor law firms?
Sao Paulo leads with 489 headquartered companies, followed by Rio De Janeiro (162) and Curitiba (115).
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 2,765 verified decision-maker contacts tracked across these 2,377 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 29, 2026.
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Union labor law firms by geography
- Union labor law firms based in Belo Horizonte, Brazil
- Union labor law firms based in Brasilia, Brazil
- Union labor law firms based in Campinas, Brazil
- Union labor law firms based in Curitiba, Brazil
- Union labor law firms based in Porto Alegre, Brazil
- Union labor law firms based in Recife, Brazil
- Union labor law firms based in Rio De Janeiro, Brazil
- Union labor law firms based in Salvador, Brazil
- Union labor law firms based in Sao Paulo, Brazil
- Union labor law firms based in Toronto, Canada
- Union labor law firms based in Vancouver, Canada
- Union labor law firms based in Lyon, France
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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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