Home - Sion Advogados

legal solutions for capital-intensive and infrastructure projects

We provide services with high efficiency, technical competence and specialization.

We are a law firm that is proud to be recognized as a benchmark in Brazil and beyond. This reputation comes from our commitment to being there for those who trust our work, offering not only legal solutions, but also security and peace of mind for our clients at important moments.

More than providing legal services, our mission is to create tailor-made solutions, even for the most complex challenges. We combine technical knowledge, experience and empathy to understand each situation in depth and deliver results that make a difference.

Meet the office

Expertise in highly complex cases and recognition in the national and international market: WE ARE BRAZIL’S FIRST PLACE IN ENVIRONMENTAL AND ENERGY AND LATIN AMERICA’S FIRST PLACE IN MINING

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Main recognitions

Since its foundation, Sion Advogados has been positively recognized by the market and the legal community in general. These results are the fruit of a professional and specialized approach, which can be seen in the various awards and certifications obtained in the different sectors in which the firm provides services.

Practice areas

Sion Advogados offers differentiated legal solutions, supported by the unique know-how of its professionals and significant experience in supporting large projects involving infrastructure works or capital-intensive investments.

practices

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In the media

15/10/2026

Dia das Certificadas GPTW

Today, on GPTW Certified Day, we celebrate an achievement that holds very special meaning for us. The Great Place to Work certification reflects the perception of those who ... [...]

14/10/2026

AREA CORRECTION | How far is it possible to correct a property record?

Area correction makes it possible to align the registry with the actual condition of the property when a new survey identifies differences in measurements or property boundaries. H... [...]

13/10/2026

Female Leadership | 4th Edition – Speakers

On November 3, Sion Advogados will hold the 4th edition of Women’s Leadership, an event that brings together professionals from different sectors and career paths to share e... [...]