Combining a strong antitrust investigation practice with a reputation for merger filings in Argentina, Marval O’Farrell Mairal handles a range of competition matters across Latin America particularly Argentina, Brazil, Chile, Bolivia, Peru and Uruguay. The team assists companies dealing with economic regulations, as well as providing internal compliance advice to a broad spectrum of clients. Competition specialist Miguel Del Pino leads the team and can call on the experienced Santiago del Rio, who also focuses on the competition space, including merger control fillings. Another key name in the area is associate Ignacio Mora, who specialises in competition law and has expertise in Argentina and abroad.

Known for its merger control work with international corporations, Allende & Brea has also participated in key cartel cases in Argentina. The firm’s international presence is boosted by its leadership positions in the Antitrust Committee of the International Bar Association, the Antitrust Section of the American Bar Association and the American Antitrust Institute. Another core segment for the group is vertical restraint and dominance cases, and it also advises on the design of distribution systems to comply with antitrust laws. Leading the team is renowned practitioner Julián Peña, who is an expert on all aspects of competition and antitrust law. Also active in the sector is Federico Rossi, whose experience includes merger control proceedings, cartel investigations, dominance cases and sectoral enquiries.

The competition and antitrust department at Beccar Varela handles enforcement, merger control, investigations, counselling and compliance. As well as acting in a range of litigation related to cartels and abuse cases, the team has particular expertise in cement and automobile cartels, credit-card investigation abuse cases and matters related to leniency. Agustín Waisman is a go-to name for competition and antitrust, consumer protection and gaming law. He co-leads the team with Augusto Vechio, whose strengths include international trade, World Trade Organization rules, free trade agreements, consumer law and economic regulation. Senior associates Camila Corvalán and Mercedes Pando are also active in the area. Since publication, Corvalán has also been appointed head of the firm's new Public Affairs practice - effective as of November 2022.

Antitrust expert Marcelo Den Toom leads the competition practice at Bomchil , which is active in key merger-control and anticompetitive cases. The team handles multijurisdictional merger cases, and acts as trusted advisor in sensitive cartel and abuse of dominance investigations; it is also experienced in economic regulation, administrative law and litigation. Particular areas of strength include media and telecommunications, oil and gas, energy, chemicals, retail, financial services and transportation.

Praised for its ‘technical-practical vision with a holistic approach’, Pérez Alati, Grondona, Benites & Arntsen’s antitrust practice covers general advice on competition and antitrust regulations in Argentina, antitrust filings and proceedings with the Argentine antitrust regulators, litigation related to competition and antitrust cases, and investigations related to anti-competitive behaviours. The team represents domestic and international clients in matters arising from the full array of transaction types and across a wide variety of industries. Luis Diego Barry handles competition, antitrust and consumer law, and has notable experience in antitrust, product liability and consumer protection cases. His team includes María Carolina Abdelnabe Vila, who specialises in competition, antitrust, consumer protection, fair trade, data protection law, product liability and legal tech.

Experienced in complex merger control reviews and conduct cases, Bruchou & Funes de Rioja’s competition and antitrust practice draws from the firm’s strength in litigation and criminal law to assist in a range of cartel and individual conduct matters. The group handles transactions, joint-ventures and other agreements with an antitrust impact. Advising both local and foreign clients, Gabriel Lozano leads the team and specialises in competition law, particularly merger control and conduct investigations cases.

Known for cross-border experience in competition and antitrust matters, Mitrani Caballero & Ruiz Moreno Abogados assists with merger filings and antitrust proceedings across Latin America, the EU, Canada, China and the US. The firm advises on commercial behaviour and the avoidance of anticompetitive practices, as well as on the establishment of competition compliance programs and internal investigations. Aixa Sureda has expertise in competition and antitrust law conerning both local issues and cross-border transactions. She co-leads the practice with Cristian Mitrani, who provides counselling on competition law infringement cases and internal investigations. Senior associate Evangelina González Soldo is another key name in the team and specialises in M&A, as well as on antitrust and competition.

The multidisciplinary competition practice group at O'Farrell combines expertise in the energy, telecoms, infrastructure, retail, public utility and procurement, entertainment and automotive sectors. The team is particularly active in competition matters related to regulated and complex markets, as well as advising on strategies to challenge regulation and competition matters; it also handles tariff review proceedings. Agustín Siboldi spearheads the practice and specialises in antitrust, energy and natural resources and telecommunications.

Led by public law specialist Juan Cruz Azzarri, Martínez de Hoz & Rueda 's competition and antitrust practice has broad experience assisting local and international clients with transactional filings and clearance. The team also represents companies before the Argentine Antitrust Authorities, with Azzari's practice encompassing administrative and constitutional law.

Providing a full service in the competition area, Tanoira Cassagne Abogados' team handles antitrust behaviours, merger notifications and litigation. As regards merger-control filings, the team advises on national and cross-border transactions in a range of sectors, including oil and gas, pharma, agribusiness and credit cards. Co-practice heads Francisco Rondoletti and Bernardo Cassagne are both reported as responsive, reliable and up-to date with relevant matters and norms.