The practice at Bomchil handles both contentious and non‑contentious tax mandates, with core strength in cross‑border transactions, regulatory matters and tax litigation. The team advises a client base spanning the agribusiness, finance, oil and gas, and energy sectors, and is jointly led by Ariadna Artopoulos, Mariano Ballone, Alejandro Messineo and Guillermo Teijeiro. Artopoulos’ recent work includes cross‑border M&A transactions with regulatory and foreign‑exchange components, as well as syndicated financings and international notes offerings. Ballone focuses on transfer pricing disputes and tax litigation, while also advising on restructuring and acquisition matters, particularly for oil and gas, and agribusiness clients. Messineo is active in M&A transactions, while Teijeiro concentrates on the tax aspects of acquisitions and international taxation. At associate level, Mariano Rajoy Chied supports on transactional matters, while María Agustina Salatino specialises in tax litigation, alternative dispute resolution and regulatory issues.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- An exceptional firm, with outstanding professionals who are always available. In my opinion, its greatest advantage over other firms lies in its partners.
- The firm stands out for its close partnerships, its ability to assemble tailored multidisciplinary teams, and a collaborative culture that allows it to approach problems from multiple perspectives. Compared to other firms, Bomchil is favorably positioned for its consistency, its reputation in handling highly complex matters, and its skill in translating sophisticated legal issues into practical, actionable recommendations for clients.
- They have a good response to needs, solid professional knowledge, and good judgment.
- The service is very good.
- Mariano Ballone is an excellent tax specialist. He is clear, practical, and has very good analytical skills. He works perfectly well with lawyers and accountants. He answers complex questions clearly.
- Strong technical knowledge and understanding of the economic context. Practical and focused on maximizing business potential.
- Guillermo Teijeiro is our trusted tax advisor in Argentina. He is available and always has very reliable advice and insights.
Key clients
- Bunge Argentina
- Aeropuertos Argentina
- PepsiCo Inc.
- Savencia Group
- Enel Group
- Huawei
- Grupo Iraola
- Paramount Global
- HCA
- Mercado Libre
- Grupo Corporación América
- Blu Logistics Argentina
- Lesaffre Group
- Uber
- Weatherford
- Siemens Energy
- American Express Argentina
- Capsa/Capex
- Seabord Energías Renovables
- Compañía General de Combustibles
Work highlights
Advised Nutrien on the sale of its 50% equity stake in Argentina-based nitrogen producer Profertil S.A. acquired jointly by Adecoagro and Asociacion de Cooperativas Argentinas Coop Ltda.
Advised GeoPark on increasing its businesses on the Vaca Muerta basin, one of Latin America’s most important unconventional hydrocarbon projects through the acquisition of the Loma Jarillosa Este and Puesto Silva Oeste blocks.
Advised Paramount Global on the sale of Telefé, Argentina’s largest free-to-air television network to an entity controlled by Gustavo Scaglione and José Luis Manzano in a competitive auction process.
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.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Ariadna Artopoulos; Mariano Ballone; Alejandro Messineo; Guillermo Teijeiro
Other key lawyers
Mariano Rajoy Chied; María Agustina Salatino