Arrieta Mantilla & Asociados

According to satisfied clients, Arrieta Mantilla & Asociados’ ‘knowledge of the public law area is total’. Recognised by many as a destination practice for the full range of public law disputes, public contracts, procurement matters and regulatory work, the team counts concessionaires, government departments, banks and major corporations among its key clients. A go-to specialist in the public law field, Carlos Gustavo Arrieta contributes extensive experience in arbitral, judicial and administrative law proceedings, where he represents an array of public sector entities and domestic and multinational companies. He recently represented the Colombian Ministry of Foreign Affairs before the International Court of Justice in a maritime dispute with Nicaragua. Yady Villaquirán co-heads the practice alongside Arrieta and is highly regarded for her combination of constitutional law, administrative law and infrastructure expertise; she advised Financiera de Desarrollo Nacional (Colombia’s infrastructure-focused development bank) on the structuring of the Ranchería-San Juan del Cesar and Triángulo del Tolima irrigation districts. The team also draws on four-year associate Laura Arias, who specialises in public and administrative law. Former associate Santiago Cardona left for an in-house role at Multiriesgos de Colombia in Janaury 2023.