Hailed by many as ‘the best projects firm in the country’, Durán & Osorio Abogados Asociados impresses with its unparalleled record in structuring high-impact, pathfinder projects across Colombia and beyond. The group stands out for representing both private and public stakeholders — including government entities, multilateral agencies, concessionaires and construction companies — across the full projects life cycle, with its recent work spanning the roads, rail, airports, energy and social infrastructure spheres. High-profile projects expert Álvaro Durán remains highly sought after for his pioneering experience in the field; he is acting alongside up-and-coming partner Felipe Herrera to advise Odinsa on structuring an unsolicited PPP proposal for the Nuevo Aeropuerto de Cartagena project. Other partners to note include Álvaro Gasca, praised for his ’comprehensive project vision’; and public law veteran, Jorge Gabriel Taboada. At senior associate level, clients highlight Daniela Mejía Alzate (public law and infrastructure) and Sebastián Duque (infrastructure and finance) for their ‘talent, analytical rigour, and innovative approach’. Other recommended seniors are Alejandro Isaza, whose projects experience encompasses transport, energy and social infrastructure; and Edgardo Maya, who focuses on projects-related litigation. In June 2024, associate Carlos Andrés Sarasti left the firm for an in-house role at Aguas de Bogotá.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The firm is expert in formulating infrastructure projects, making it an ideal support for our company. The team's technical expertise and professionalism distinguish it a crucial support on projects, we highlight Álvaro Gasca.’
- ‘Álvaro Gasca is a key figure in the sector, recognised for his technical precision, negotiation skills, and comprehensive project vision. Daniela Mejía and Sebastián Duque represent the next generation of top partners at the firm. Both stand out for their talent, analytical rigor, and innovative approach.’
Key clients
- International Finance Corporation / Ministerio de Obras Públicas
- Financiera de Desarrollo Nacional
Work highlights
Advised Odinsa on the structuring and submission of unsolicited PPP proposals for the Nuevo Aeropuerto de Cartagena project and the El Dorado Airport Expansion project.
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.
Álvaro Gasca
Jorge Gabriel Taboada
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Felipe Herrera
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Sebastián Duque
Daniela Mejía Alzate
Practice head
Álvaro Durán; Jorge Gabriel Taboada; Álvaro Gasca; Felipe Herrera