Mr Marcelo Zenkner > TozziniFreire Advogados > Sao Paulo, Brazil > Lawyer Profile

TozziniFreire Advogados
CEP 04038-904

Work Department

Administrative Law and Government Projects

Compliance & Investigation




TozziniFreire´s partner and PhD in Public Law from Universidade Nova de Lisboa with research on “Government and Business Integrity”, Marcelo has over 25 years of experience in the legal field, especially in compliance and anti-corruption policies. He was a Public Prosecutor in Espírito Santo State between 1997 and 2019, playing key roles in the fight against organized crime, corruption and administrative misconduct. Marcelo also performed as General Controller of Espírito Santo State and, during his term, he created the first administrative structure in Brazil to apply administrative sanctions of Brazilian Clean Companies Act. After leaving the Public Prosecution, he was selected and appointed to the position of Chief Governance and Compliance Executive Officer at Petrobras, exercising his office from 2019 to 2021.




  • Member of the Advisory Board of Collective Actions of the Brazil Network of UN Global Compact (United Nations Organization).
  • Member of the CNJ (National Council of Justice) Working Group for the development of integrity and compliance systems within the scope of the Judiciary.
  • Professor at FDV (Faculdade de Direito de Vitória), leader of the Civil Procedural Law and Collective Rights undergraduate and graduate programs, and responsible for developing and coordinating the first specialization program in Compliance and Corporate Anti-corruption Law in Brazil.


  • PhD in Public Law from Law School of FDUNL (Faculdade de Direito da Universidade Nova de Lisboa), Portugal, 2018.
  • Master´s degree in Fundamental Constitutional Rights and Guarantees from FDV (Faculdade Direito de Vitória), 2005.
  • Specialized degree in Civil Procedural Law from UCP (Universidade Católica de Petrópolis), 2001.
  • Graduate of the Law School of UFJF (Universidade Federal de Juiz de Fora), 1994.

Lawyer Rankings

Brazil > Compliance

A pioneer in the field of compliance, TozziniFreire Advogados stands out for its longevity in the market, and is noted for its ‘unique knowledge of the Brazilian compliance ecosystem‘. The firm has been particularly focused on crisis management, where it deploys multidisciplinary teams to assist clients in the context of environmental disasters, cyberattacks and other investigations. It also stands out for its active practice in internal investigations, in which it is frequently sought by well-known companies in a range of industries in sensitive matters. Co-founder of the Latin American Compliance & Investigation League (LACIL) and board member of The Society of Corporate Compliance and Ethics (SCCE), Shin Jae Kim leads the team, which includes internal investigations expert and ‘excellent professionalKarla Lini Maeji; Giovanni Paolo Falcetta, who has taken a lead role on numerous fraud and corruption internal investigations recently; and Renata Muzzi Gomes de Almeida, whose track record includes insider trading and corruption cases. The already sizeable team grew further in June 2021 with the hire of Marcelo Zenkner, a former prosecutor in the state of Espírito Santo. Associate Brunna Ortega de Almeida also receives praise; senior associate Fábio Heilberg is another key contact.

Brazil > Public law

The government projects and contracts team at TozziniFreire Advogados demonstrates strong capabilities in designing PPP structures, negotiating public contracts and assisting clients in public procurement. The department offers legal support to a varied client roster, helping companies navigate the complexities surrounding interactions with governmental entities, public bodies and regulatory agencies. Based in Brasília, Cláudio Coelho de Souza Timm stands out for his involvement in the development of the regulation of the gaming industry; he is also experienced in regulatory and enforcement proceedings before the Federal Audit Court, the Ministry of Health and the Ministry of Agriculture. Timm jointly heads the practice with José Augusto Dias De Castro, who focuses on public procurement and compliance issues involving public-private sector interactions, and Marcelo Zenkner, who recently joined from Petrobras to oversee mandates involving administrative improbity, anti-corruption and compliance. The team was strengthened by the arrival of Caio de Souza Loureiro from Cascione Pulino Boulos Advogados in March 2022; he focuses his practice on the interaction between the public and private sectors.