Pérez Bustamante & Ponce advises a growing client base, including regional and national telecoms, entertainment, food and beverage, and healthcare companies, on the full range of antitrust matters, and is regularly involved in high-value transactions. Experienced litigator Diego Pérez-Ordoñez leads the department, often overseeing contentious matters such as abuse of market power issues, and is supported by director Mario Navarrete, who works on antitrust matters including landmark cases in front of the antitrust authorities and who was promoted to partner in January 2025. Senior associate Andrés Rubio-Puente is another key practitioner in the team.
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Key clients
- Anheuser Busch InBev
- Telefónica
- SYNLAB
- Amberjack
- Visa
- Toyota Motors
- Arca Continental-Coca Cola Bottler
- DP World
- Banco Pichincha
- Delta Airlines
Work highlights
Advised Heineken on filing a complaint for abuse of market power against Cervecería Nacional.
Advised Puntonet on an investigation focused on responding to the allegations made by the Ecuadorian competition authority (Superintendency of Economic Competition) regarding alleged unfair competition practices, specifically acts of deception.
Assisted Fresenius with a detailed review of a transaction, focusing on analysing the implications from a competition law perspective; the analysis covered the assessment of potential economic concentration risks and the effects on competition in the relevant markets affected by the operation.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Mario Navarrete Serrano
Practice head
Diego Pérez Ordóñez