Company lists · Data refreshed September 2026
Top 25 Oil and gas law firms based in Brazil
RevenueBase identified 76 oil and gas law firms headquartered in Brazil as of September 2026 and tracks 1,188 professional contacts across them, including 298 with verified work emails. Rio De Janeiro is the largest hub.
This list covers oil and gas 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 oil and gas law firms based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 123 contacts → | ||||
Indirect evidence “O Mudrovitsch Advogados está entre os principais escritórios de advocacia do Brasil, com expertise em áreas que vão desde o Direito Constitucional e Criminal, Direito…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 91 contacts → | ||||
Indirect evidence “Além de Belo Horizonte, onde foi fundado, Aroeira Salles Advogados, seus sócios e associados estão em Brasília, Rio de Janeiro, São Paulo, Londres (UK) e Lisboa (PT).” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 40 contacts → | ||||
Partial evidence “Law firm specializing in Tax and Corporate / Contractual Law, with outstanding experience in administrative and judicial litigation, providing its legal services to the most…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 38 contacts → | ||||
Indirect evidence “GUIMARÃES & VIEIRA DE MELLO ADVOGADOS tem por alicerce a qualidade Técnica de seus talentosos e dedicados membros – os quais alcançaram, ou estão em processo de pós – graduação…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 34 contacts → | ||||
Indirect evidence “The partners and associates of Mannheimer, Perez e Lyra Advogados have vast experience in the prevention and resolution of complex judicial and arbitral disputes, before national…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 32 contacts → | ||||
Indirect evidence “A Regis Pontes Advogados é um escritório especializado em Direito de Energia, composto por profissionais especializados e experientes, e que tem por objetivo auxiliar seus…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 26 contacts → | ||||
Indirect evidence “O escritório Marcos Cardoso e Tiago Sá Advogados Associados tem mais de 15 anos de atuação nos mais variados campos do Direito, sendo especialista em demandas inerentes ao Direito…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 24 contacts → | ||||
Indirect evidence “Fundado em 2007, o Trouw Fraga Advogados é um firma com atuação nacional e internacional, com parcerias e acordos operacionais na China, Estados Unidos, França, Holanda, Espanha…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 21 contacts → | ||||
Indirect evidence “Faveret Tepedino Londres Fraga é um escritório de advocacia empresarial especializado em projetos de energia.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 18 contacts → | ||||
Indirect evidence “Escritório de advocacia” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 17 contacts → | ||||
Strong evidence “O escritório Magro Advogados é estruturado para atender às diversas demandas do setor de Oil & Gas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 17 contacts → | ||||
Indirect evidence “Desde 2012, o Leal Cotrim Advogados vem consolidando seu propósito de oferecer atendimento especializado em projetos estratégicos para as empresas que assessora.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 16 contacts → | ||||
Indirect evidence “Fundado em 1969, o Escritório de Advocacia Sergio Bermudes é hoje um dos principais escritórios de advocacia do país, sendo referência no contencioso judicial e arbitral.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 16 contacts → | ||||
Indirect evidence “Somos um escritório estruturado para atender nossos clientes em diversas áreas do Direito.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 15 contacts → | ||||
Indirect evidence “Ricardo Carneiro Advogados Associados surge no cenário jurídico brasileiro com ênfase no assessoramento especializado, visando oferecer soluções à indústria de base e de…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 contacts → | ||||
Partial evidence “Trennepohl Advogados is a law firm born from its partner’s experience in environmental law, in Brazil and abroad, offering differentiated legal services in a demanding market.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 10 contacts → | ||||
Indirect evidence “O LCFC Advogados é um escritório especializado em Direito de Energia e Infraestrutura.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 9 contacts → | ||||
Indirect evidence “O escritório Mendes, Hall & Advogados Associados, com sede própria no Rio de Janeiro, na Av.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Indirect evidence “O escritório foi fundado pelo advogado Felipe Martins Silvares Costa, que atua há mais de 20 anos no mercado jurídico nacional com o foco na atuação no ramo de mineração…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect evidence “O BCR Advogados é um escritório que tem amplo conhecimento em diversas áreas jurídicas, sobretudo nos campos da Mineração e Energia.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 contacts → | ||||
Indirect evidence “EDELSTEIN ADVOGADOS é especializado em Direito da Energia, e conta com a experiência de mais de 24 anos de seu sócio fundador, proporcionando entregas sofisticadas e assertivas…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Partial evidence “LP LAW (Lopes Pinto Advogados Associados) é um escritório jurídico que alia experiência e dinamismo, com enfoque na especialização de cada um de seus sócios e profissionais em…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “Especialistas em Direito Imobiliário” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence “O Escritório Prates & Maia Advogados e Consultores Associados possui tradição de mais de 45 anos, contando com a credibilidade e respeito da comunidade jurídica baiana e…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Indirect evidence “No mercado desde 1998, a equipe composta pelos sócios Gustavo Moura Tavares, Matheus de Toledo e Fernando Cesar Barbosa Siqueira, e por um grupo de advogados experientes e…” 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: oil and gas 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 oil and gas law firms.
- Partial evidence
- Its own public description names part of oil and gas law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name oil and gas 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 76 oil and gas law firms based in Brazil
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Oil and gas 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 76 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 oil and gas 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 “oil and gas 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 oil and gas 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 oil and gas 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, 298 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.
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 oil and gas 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 oil and gas law firms are there based in Brazil?
RevenueBase identified 76 oil and gas 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?
Mudrovitsch Advogados, headquartered in Lago Sul Brasilia, tops this list with the largest team on record.
Which city has the most oil and gas law firms?
Rio De Janeiro leads with 16 headquartered companies, followed by Sao Paulo (16) and Belo Horizonte (6).
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 298 verified decision-maker contacts tracked across these 76 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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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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