
Allende & Brea has a competition and antitrust practice that is one of the most active in the Argentine market, advising clients on a range of antitrust matters, from merger control filings and compliance, joint ventures, and distribution, to licensing, franchising agreements, and antitrust litigation before the country’s authorities. The team advises international corporations on merger control matters and assists with internal investigations, and designing compliance programmes and distribution systems in accordance with local and federal regulations, and is involved in complex litigation related to vertical restraint and dominance proceedings. Practice head Julián Peña is a veteran in the antitrust and competition field, with a focus on merger control proceedings, anticompetitive practices investigations, and compliance. The team also includes Federico Rossi, who has ‘extensive knowledge’ in antitrust and competition law, specialising in merger control proceedings, cartel and abuse of dominance investigations, and sector and market investigations. Associate Luz Villalobos provides capable support in mergers and conduct investigations, with a specialism in the fintech sector.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Allende & Brea has advised us on antitrust litigation, demonstrating in-depth theoretical knowledge of the relevant legislation and practical knowledge of how the system works. Their advice has been strategic and prompt, resulting in a successful and favourable outcome. Their team is also friendly and very available to clients, both partners and associates. Our experience working with them has been very positive.'
- 'Julián Peña is a lawyer with extensive knowledge and experience, as well as being very accessible and responsive.'
Key clients
- MODO (Play Digital)
- Allkem
Work highlights
Advised MODO on an abuse of dominant position claim filed against Mercado Libre and Mercado Pago.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Julián Peña
Other key lawyers
Federico Rossi; Luz Villalobos

