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

qualified professionals

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lectures and
training

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awards and

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contracts

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involved

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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.

TEAM

Alexandre Sion
FOUNDING MEMBER
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Bernardo Pessoa
PARTNER
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Bruna Pinheiro
PARTNER
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Fernanda Figueiredo
PARTNER
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Luiza Guerra
PARTNER
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Igor Oselieri
PARTNER
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Mateus Stallivieri
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In the media

16/07/2026

Há decisões que mudam empresas

  A large part of legal practice takes place away from the spotlight. Before a judicial decision is reached, there are hours of study, analysis, the weighing of arguments, and... [...]
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15/07/2026

Check out the 36th edition of the Real Estate Bulletin!

  Check out the 36th edition of the Sion Advogados Real Estate Bulletin with the most recent legal highlights that impact the sector. The newsletter is distributed directly to... [...]
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13/07/2026

STJ: the sale of the property does not, in itself, preclude remediation of the area *in situ*.

The sale of the property, in itself, does not prevent environmental remediation from being carried out on the degraded area. In a recent decision, the Superior Court of Justice (ST... [...]
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