Department profile
Mattos Filho

Corporate/Commercial: Rio de Janeiro

Brazil Guide 2026 : Brazil

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Mattos Filho

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About

Provided by Mattos Filho

Our Rio de Janeiro office has seen substantial growth, becoming the largest corporate full-service law firm in the city. With 127 lawyers, 24 partners, and 21 trainees and interns, the office excels in the Corporate/Commercial practice, which includes Corporate and M&A, Infrastructure, Finance, Compliance, and Competition. Our strong presence extends to IPOs, follow-on equity offerings, and finance transactions. Mattos Filho’s Rio de Janeiro office is a key player in the legal landscape.

Chambers Review

Provided by Chambers

Corporate/Commercial: Rio de Janeiro - Brazil

Band 1

What the Team is Known For
Mattos Filho is a nationally front-running firm for corporate matters and a key regional player in Rio de Janeiro. The team stands out for its high-end transactional practice in Rio. Clients from the power, automotive, and oil and gas industries frequently rely on this team for their most sophisticated deals.
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Work Highlights

Provided by Chambers

  • Mattos Filho assisted Equinor with its USD3.5 billion sale of 60% interest in the Peregrino and Pitangola oil fields to PRIO.

Strengths

Provided by Chambers

  • Mattos Filho stands out for its responsiveness, technical precision and strong commercial acumen. They manage to be quick and objective without sacrificing legal sophistication, delivering consistent solutions that are tailored to the realities of the business.

    Corporate/Commercial: Rio de Janeiro respondentBrazil

  • They have strong expertise and know our company very well, which helps a lot. Mattos Filho has good market awareness given its involvement in large cases. The team is up to date, responds quickly, is easily accessible and breaks away from the typical rigid lawyer mould. They provide practical solutions by looking from a business perspective.

    Corporate/Commercial: Rio de Janeiro respondentBrazil

  • Mattos Filho boasts top-tier expertise in project finance, M&A, and oil and gas. They are a true full-service firm, meaning they can efficiently and effectively handle all areas of law. Its lawyers' technical expertise is unquestionable.

    Corporate/Commercial: Rio de Janeiro respondentBrazil

  • Mattos Filho has a senior team that remains closely involved in execution, demonstrating a diligent, deal-oriented approach and consistently seeking to develop creative solutions at critical stages of transactions.

    Corporate/Commercial: Rio de Janeiro respondentBrazil

  • The main differentiating factor of Mattos Filho lies in its combination of technical depth and a solution-oriented, strategic approach. Its partners demonstrate highly sophisticated expertise, supported by a strong legal foundation and substantial experience in complex matters, which instils confidence and consistency in their recommendations.

    Corporate/Commercial: Rio de Janeiro respondentBrazil

Notable Practitioners

Provided by Chambers

  • Giovani Loss
    Giovani Loss

    Giovani Loss

    Partner Giovani Loss is praised by market sources for his solid practice in the energy, oil and gas, and corporate areas, handling sophisticated mandates in Rio de Janeiro.

    • Giovani Loss clearly stands out among his peers as an above-average professional with consistently outstanding technical and sector expertise. His most distinctive strength lies in his deep understanding of the oil and gas industry, extending beyond legal aspects to encompass its regulatory, operational and commercial dimensions. This comprehensive perspective enables him to act with precision and strategic clarity, delivering recommendations that are closely aligned with the sector’s realities.

      Corporate/Commercial: Rio de Janeiro respondentBrazil

    • Giovani Loss is a highly competent professional with strong technical skills, strategic vision and an excellent ability to understand client needs.

      Corporate/Commercial: Rio de Janeiro respondentBrazil

    • Giovani Loss combines strong commercial acumen with recognised expertise in the oil and gas sector.

      Corporate/Commercial: Rio de Janeiro respondentBrazil
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  • Pablo Sorj
    Pablo Sorj

    Pablo Sorj

    Partner Pablo Sorj is well regarded for his practice in corporate mandates and project finance, including sophisticated transactions in the oil and gas industry.

    • Pablo was a benchmark for my company. He delivered on time and within the agreed-upon scope, exceeding expectations in terms of quality and teamwork throughout the project.

      Corporate/Commercial: Rio de Janeiro respondentBrazil

    • Pablo Sorj is one of the firm’s standout practitioners. He is highly reliable in project finance and corporate law matters and demonstrates a strong commitment to client service.

      Corporate/Commercial: Rio de Janeiro respondentBrazil
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  • Claudio Oksenberg
    Claudio Oksenberg

    Claudio Oksenberg

    Partner Claudio Oksenberg is described by market sources as a strong name in Rio de Janeiro's corporate scene, working on high-end M&A, capital markets and investment deals.

    • Claudio Oksenberg is a highly skilled professional.

      Corporate/Commercial: Rio de Janeiro respondentBrazil

    • Claudio Oksenberg demonstrated strong technical expertise and strategic vision in corporate matters, handling issues with precision and confidence at all stages of the transaction.

      Corporate/Commercial: Rio de Janeiro respondentBrazil

    • Claudio Oksenberg provided senior-level support and instilled complete confidence during complex and high-pressure M&A negotiations.

      Corporate/Commercial: Rio de Janeiro respondentBrazil
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Ranked Individuals at Mattos Filho (3)

Brazil

Members

Provided by Mattos Filho

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