Associate Attorney | Barroso Fontelles Barcellos Mendonca Advogados | Brazil
Sergio Sá is a senior attorney with a dynamic career blending in-house counsel roles at major corporations
with experience at top-tier law firms. Advising multinational corporations, financial institutions, and
regulated market leaders, his practice focuses on strategic Litigation, Arbitration, Regulatory Law and
Infrastructure.
His track record includes representing clients in high-profile cases before Brazil’s State and Superior Courts,
establishing a legal department for a major utility concessionaire, negotiating complex contracts and leading
landmark cases in technology and data protection. Fluent in English and German, Sergio has authored
publications on ESG and technology-related legal issues. He is recognized for his strategic thinking and ability
to navigate complex legal environments.
