LAWYER PROFILE
Marcela Mattiuzzo

Marcela Mattiuzzo

Brazil 2026

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VMCA Advogados
 VMCA Advogados

Ranked in 1 practice area

Competition/Antitrust

Brazil

5 years ranked

About

Provided by VMCA Advogados

Brazil: Contentious

Practice Areas

Data Protection, Technology and Antitrust

Career

As advisor and Chief of Staff to the president of CADE from 2015 until 2016, Marcela acquired a wide breadth of knowledge in antitrust matters, as well as in the composition and organization of the Brazilian System for Competition Defence. She was directly involved in the agenda that led to the many guidelines CADE issued in the past years – leniency, compliance, settlements, and the horizonal mergers guidelines. Marcela joined VMCA when the firm was launched, in January 2017, becoming the partner responsible for technology and data privacy matters, as her academic path focuses on internet and technology – currently, she directly advises clients such as Facebook, Ambev, Baxter, Braskem, among others. In January 2019, Marcela was appointed head of the firm’s recently launched Data Privacy and Technology practice.

Publications

- “Algorithms and Big Data: Considerations on Algorithmic Governance and its Consequences for Antitrust Analysis”(Revista de Economia Contemporânea — Journal of Contemporary Economics, v. 23, n. 2, mai/ago 2019).

- The Brazilian Data Protection Policy and its Impacts for Competition Enforcement (Competition Policy International“, v. 2, p. 19-23, 2019), co-author. -

Online Advertising Platforms and Personal Data Retail: Consequences for Antitrust Law (Competition Policy International Antitrust Chronicle, v. 7, p. 1, 2015).

- Antitrust Compliance Programs: The Brazilian Experience (Competition Law and Policy in Latin America: Recent Developments, Wolter Kluwers, 2017, v.?, p. 59-71).

- Business Models and Big Data: How Google Uses Your Personal Information (PrivacidadeemPerspectivas. Lumen Juris, 2018, v. 1, p. 1-256).

Personal

Marcela is a PhD candidate at the University of São Paulo (USP), where she also concluded her Master in Constitutional Law, which was devoted to studying big data and algorithmic systems, more precisely the challenges of algorithmic discrimination.

Chambers Review

Provided by Chambers

Chambers Brazil: Contentious

Competition/Antitrust - Brazil

Band 4
Individual Editorial

Marcela Mattiuzzo advises clients on a wide range of competition mandates, being particularly active in investigations before CADE.

Learn more about this teamView ranking table

Strengths

Provided by Chambers

  • Marcela Mattiuzzo is an exceptionally assertive professional with outstanding position in the Brazilian antitrust niche. Her strong relationships within the field, combined with her distinct professional style, make her one of the most respected and well‑positioned lawyers in the market.

    Competition/AntitrustChambers Brazil: Contentious

  • I think she is truly client‑oriented. Marcela Mattiuzzo is highly technical and very well respected in her field. She also has an excellent understanding of the competition authorities.

    Competition/AntitrustChambers Brazil: Contentious

  • Marcela’s work is outstanding. Her knowledge of CADE’s policies and procedures, as well as her credibility and relationships with senior CADE officials, is exceptional.

    Competition/AntitrustChambers Brazil: Contentious

Ranked Individuals at VMCA Advogados (3)

Brazil

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