Marval O’Farrell Mairal

With one of the largest antitrust and competition practices in the country, Marval O’Farrell Mairal works closely with Argentina’s regulatory authorities on some of the market’s most high-profile antitrust investigations. The team is experienced in cross-border transactions, regulatory proceedings, cartel and abuse of dominance investigations, and merger control filings, among other areas. The practice often works in a multi-jurisdictional capacity across Latin America, the United States, and the United Kingdom and Europe on matters in the pharmaceutical, automotive, media, financial services, technology, and agribusiness sectors. Miguel del Pino leads the practice, bringing to bear over two decades of experience in antitrust investigations, merger control filings, and abuse of dominance cases. He is also an expert in cross-border transactions and regulatory matters. Santiago del Rio bolsters the team’s competition law offering, with fifteen years of experience in merger control, antitrust investigations, and abuse of dominance cases, often working with clients in the pharmaceutical industry. The talented associate team includes Ignacio Mora, who specialises in merger control and antitrust investigations, advising international and domestic corporations alike, and Gabriela Ariel Irizar, who has over a decade of experience in cartel investigations, anticompetitive practices, and merger control proceedings. Since publication, Mora has left the firm - effective as of November 2025.