Marta Loubet Mezquita

Associate, Mexico City



Marta Loubet is a senior associate with the antitrust practice group, steering clients through Mexican merger control, cartel and abuse proceedings.

Marta has more than ten years of experience advising and representing clients in all areas of competition law and providing pragmatic, hands-on legal advice.

Marta has been involved in a large number of complex merger control cases before the Mexican Competition Authority and regularly manages local and multi-jurisdictional merger control proceedings. She also represents clients in cartel and abuse proceedings, and helps them conduct internal investigations and develop effective compliance programs.

She has a strong track record leading high-profile antitrust cases in an array of business sectors, including those where technology plays an important role, such as the electronics and telecommunications sectors.

Prior to joining the firm, she worked with the European Commission (DG COMP's Task Force Financial Crisis) from 2012 to 2013 in competition and regulation matters, and at international and local law firms in Paris, Brussels and Mexico City. Marta is an active member of Abogadas MX, the leading association promoting gender equality in the legal sector in Mexico, a lecturer at the Instituto Tecnológico Autónomo de México and a frequent contributor to antitrust publications. She holds an LLM from the Queen Mary University of London and from the Université Paris Dauphine and BAs from the Universidad Complutense de Madrid and the Universidad Autónoma de Madrid.

Bars and Courts
Queen Mary University of London
Master's Degree
University of Paris IX Dauphine
Universidad Complutense de Madrid


Marta has participated in a large number of transactions, including:

Representation of a leading real estate developer and other investors in obtaining COFECE's clearance for the acquisition of industrial warehouses of approximately one million square meters*

Coordination, at the Latin American level, of the merger control strategy for a global acquisition in the beverage sector, which resulted in the authorization of the merger in all countries involved*

Representation of an international company in the FMCG sector in the development and implementation of its antitrust compliance program*

Representation of an international leading company in the tech sector in their application for leniency before COFECE*

Representation of an airline in order to obtain COFECE's clearance with respect to a code-sharing agreement*

Representation of a leading international bank in obtaining COFECE's authorization for the sale of its corporate trust business in Mexico*

Representation of a leading real estate developer in obtaining COFECE's authorization required to complete an investment and merger for approximately US$300 million in the retail real estate sector*

Representation of a Mexican leading company in the energy sector in the development and implementation of its antitrust compliance program*

Representation of a natural legal person in COFECE's investigation regarding monopolistic practices in the market of bonds issued by the Mexican Government*

*Matters prior to joining White & Case

Speaking Engagements

Merger Notification Requirements in Mexico (COFECE and IFT), 2021, ANADE's Compliance Annual Event

Competition in the Energy Sector, 2021, Universidad Autónoma de Baja California

Abuse of Dominance in Public Service Sectors, 2020, ASCOLA


Mexican Competition Law, 2022, ABA Antitrust Magazine

The Mexican Competition Authority Files a Constitutional Controversy before the Supreme Court Claiming that the Energy Policy Violates Antitrust Principles, 2020, Concurrences

Mexico Chapter, Americas Investigation Review 2019, GIR Insight

Mexico Chapter, Merger Control 2019, Global Legal Insights

Remedies in Mexican Merger Control: The Disney Fox Case, 2019, International Trade Law and Regulation, Sweet and Maxwell

Competition Policy within the Context of a Reformed NAFTA, 2018, International Trade Law and Regulation, Sweet and Maxwell

The Mexican First Collegiate Tribunal Recognises Attorney-Client Privilege in the Field of Competition Law, 2016, Concurrences

Awards and Recognition

Recognized by The Legal 500 as Rising Star in Antitrust in Mexico (2022 Edition)

Recognized by The Legal 500 as Rising Star in Antitrust in Mexico (2021 Edition)