With a strong presence in the Argentinian market, Bomchil has an impressive tax offering, providing both litigation and advisory services to both domestic and global clients. The practice is particularly adept in tax litigation, analysis of the tax burden for investment projects and advising on tax optimization of operations in both the traditional and digital economy. The practice is experienced in advising clients across diverse industries including agribusiness, energy, finance, infrastructure, and technology. The leadership of the practice comprises four partners: Ariadna Artopoulos, who advises on M&A transactions and direct and indirect asset sales; Mariano Ballone specialises in corporate financing and double taxation treaties; Alejandro Messineo, who handles cross-border transactions in relation to financial reorganisations; and Guillermo Teijeiro, who focuses on private wealth taxation. The team is supported by recently promoted senior associate María Agustina Salatino, who has expertise representing domestic and international clients in tax litigation.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Bomchil's tax law practice is excellent. Quick, practical answers with a deep knowledge of the law make it the law firm of choice.’
- ‘It is a firm in which the professionals are very technical, regardless of their seniority. The differentiator is this capacity for client attention, which is often non-existent in large firms.’
- ‘The tax team has enormous practical knowledge of the business environment in which tax rules are applied, allowing them to propose solutions that add value. They also understand the accounting aspects, which makes communication with our internal tax departments much more fluid.’
- ‘The firm consistently delivers work of excellent quality, supported by a team that is both highly proactive and deeply engaged. Their responsiveness, clarity of communication, and thoughtful positioning on complex matters set them apart in the region.’
- ‘Guillermo Teijeiro is a standout figure in the Argentine tax legal market. He brings not only deep legal expertise but also a strategic understanding of the regulatory and business challenges specific to tech-driven industries.’
- ‘Guillermo Teijeiro and Mariano Rajoy form a highly complementary team: technically strong, commercially minded, and deeply responsive. We are very pleased with the collaboration and consider them trusted advisers.’
- ‘Mariano Ballone is our main adviser and stands out for his technical knowledge combined with an understanding of the business and its practical tax consequences. He is an excellent professional who explains complex issues in a simple way.’
- ‘Mariano Ballone is an exceptional professional. He is always attentive to the client, with quick and assertive communications and an impressive technical solidity.’
- ‘Alejandro Messineo is an extraordinary lawyer with a deep knowledge of the law, especially in international taxation. His in-depth yet practical answers provide added value to clients.’
- ‘They are a highly expert team in tax law that closely supports the needs of the business. Additionally, they are constantly improving and are always aware of the latest tax developments.’
Key clients
- Bunge Argentina
- Aeropuertos Argentina
- PepsiCo, Inc. // PepsiCo De Argentina
- Savencia Group (Milkaut – Sucesores de Alfredo Williner)
- Enel Group (Enel Generacion Costanera, EdeSur, etc.)
- Huawei
- Grupo Iraola (Zanella – Corven Motors Argentina)
- Paramount Global
- Rolex
- HCA
- Grupo Corporación América
- Blu Logistics Argentina (Rhenus Group)
- Lesaffre Group
- Uber
- Weatherford
- Siemens Energy / Siemens Mobility
- American Express Argentina
- Capsa/CAPEX
- Seabord Energias Renovables
- Compañía General de Combustibles
Work highlights
Advising Nutrien in the sale of its retail operations in Argentina, Chile and Uruguay.
Advising Grupo Corporación América on the acquisition to the Grosso Group of up to 80% of Ivana Minerals, owned by Minera Cielo Azul, in turn controlled by Blue Sky Uranium.
Advising Bunge Argentina on a judicial discussion with the National Tax Authority regarding the Transfer Pricing Adjustment in agro-export activities.
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
María Agustina Salatino