Mrs Mariana Posse > Posse Herrera Ruiz > Bogota, Colombia > Lawyer Profile

Posse Herrera Ruiz
CRA 7 NO 71-52
Mariana Posse photo

Work Department

Finance and Capital Markets


Mariana Posse is a founding partner of Posse Herrera Ruiz. She directs the department of financial law and capital markets.


In matters of financial law, she has advised multilateral credit organizations and commercial markets in Europe and the United States for financing companies and groups of companies in Colombia from various economic sectors, such as mass consumption, telecommunications, mining and oil companies, manufacturing, energy, and infrastructure.

She has participated in the design and structuring of transactions, bond issuance, issuance and offer of shares, ownership list of shares, public acquisition offers, among others, both in local and international markets subject to the Rule. 144A / Reg S.

Mariana was regarded as one of the 50 most inspiring and influential Latin American women in the legal sector according to a ranking published by Latin Lawyer in 2013.


She speaks Spanish and English.


• Universidad Javeriana Graduate Studies in Insurance Law, 1984 Bogota, Colombia.
• Universidad Javeriana J.D., 1981 Bogota, Colombia.

Lawyer Rankings

Colombia > Banking and finance

(Hall of Fame)

Mariana PossePosse Herrera Ruiz

Noted for its consistent involvement in cross-border transactions, Posse Herrera Ruiz advises a mix of local and international borrowers and lenders on a wide range of banking, finance and capital markets-related deals. The group also houses significant regulatory expertise, with department co-head Natalia Escobar, who is a former Deputy Superintendent of the Financial Superintendence of Colombia, particularly sought after in this space. Among Escobar’s recent mandates, she advised China Development Bank, Shenzhen Branch on a $200m financing granted to Partners Telecom Colombia and Avantel. Seasoned finance and capital markets specialist Mariana Posse has an impressive record in highly structured work and recently teamed up with newly promoted partner Jesús Albarrán and the infrastructure practice to represent Concesión La Pintada (and its sponsors Odinsa and West Valley JL Holdco), in the $278m refinancing of the Autopista Conexión Pacífico 2 toll-road concession project. At associate level, Medellín-based Julián Aguirre is focused on fintech and investment funds, while Catalina Posada has an emphasis on structured finance and project finance. Associate Mauricio Nieto departed in July 2022 for the New York office of Cleary Gottlieb Steen & Hamilton. Associate Alejandro González left in December 2022 to join CAF.

Colombia > Capital markets

(Leading individuals)

Mariana PossePosse Herrera Ruiz

Posse Herrera Ruiz leverages its robust finance practice to secure a significant volume of debt capital markets offerings, while its top-tier corporate practice ensures it is routinely involved in advising public companies on share transactions. Go-to banking and finance expert Mariana Posse co-heads the financial law and capital markets group alongside Natalia Escobar, who has extensive expertise in regulatory matters. The group also draws on Jesús Albarrán, who was promoted to partner in February 2023, and associate Isabella Del Río, who has a focus on regulatory financial law and securities. Associate Silvana Lattanzio left in April 2022 to join SILK Banca de Inversion. Since publication, August-2023 senior associate hire, Juan José Huertas, has been promoted to practice director – effective as of March 2024.

Colombia > Projects

Posse Herrera Ruiz’s cross-practice projects offering is composed of ‘subject matter experts who are extremely knowledgeable’, according to some. Consistently working alongside other practice groups from across the firm, the team advises on a broad scope of work, including tender processes, project financings, and dispute resolution. Banking and finance specialist Mariana Posse jointly leads the department together with energy and natural resources expert Alvaro José Rodríguez, and infrastructure and public law partner Cristina Vásquez. Other key contacts include finance-focused Jesús Albarrán, who was promoted to partner in January 2023, and associate Catalina Posada, who also advises on finance matters.