Mr José Luis Ambrosy > Claro & Cia. > Santiago, Chile > Lawyer Profile

Claro & Cia.
CÓD POSTAL 755 0177
José Luis Ambrosy photo

Work Department

Capital Markets, Project Finance, Banking and Finance, Mergers and Acquisitions, Business Organizations.
Energy, Construction, Infrastructure and Transportation, Pension Funds, Investment Funds and Private Equity.




Mr. Ambrosy has concentrated his practice in corporate finance, capital markets, international finance transactions (including both corporate and project finance) and mergers and acquisitions.

He has represented a broad range of clients, including lenders, borrowers, purpchaser, sellers, goverments, investors, financial advisers, issuers, credit enhancers and underwriters. He has worked in projects involving regulatory involving regulatory authorities in the Chilean securities market and public work concessions in Chile.

He joined Claro & Cia in 1998 and is a partner since 2012. Previously, he practiced law at the legal department of a financial institution in Madrid, Spain (1996-1998). During the years 2003 and 2004 worked as a foreign associate with the project finance team at Debevoise & Plimpton, LLP, New York Office. He became a partner in Claro & Cia. in 2012.

He is admitted to practice in Spain and Chile.


Spanish and English.


LL.M., University of Notre Dame School of Law, 2004.

Master in Business Law, Pontificia Universidad Católica de Chile, 1998-1999.

J.D., Universidad de Alcalá de Henares, Madrid, 1997.

Lawyer Rankings

Chile > Banking and finance

(Leading individuals)

José Luis AmbrosyClaro & Cia.

The large banking and financing  department at full-service firm Claro & Cia. is a go-to practice for creditors, debtors, financiers and agents in relation to the development and implementation of both domestic and international banking and financial deals. The team’s expertise ranges from syndicated loans and LBOs, to structured products, derivatives and financial guarantees; it also demonstrates an enviable energy and infrastructure project-financing practice. Reflecting these capabilities, a stellar-year saw the practice lead advice to LATAM Airlines on its $3.7bn DIP loan agreement, including regional coordination of the matter across eight jurisdictions. Among the group’s several esteemed partners are prominent banking and finance specialist Rodrigo Ochagavía; Cristóbal Eyzaguirre, who assists with banking and finance matters (in addition to complex litigation); Jorge Martín, a specialist in project finance and bank and non-bank financing; and José Luis Ambrosy, whose broad practice covers corporate finance, international financing and capital markets deals. Also integral to the group are project finance lawyer José María Eyzaguirre F and M&A leader José María Eyzaguirre B. Former partner Ariel Mihovilovic  left the firm in February 2023 to become a candidate for Chile’s Constitutional Council.

Chile > Capital markets

(Leading individuals)

José Luis AmbrosyClaro & Cia.

Acting for issuers, financiers, initial purchasers, selling shareholders, and institutional and individual investors, Claro & Cia. houses a go-to practice for high-stakes domestic and international securities deals, including public and private offerings. The team’s scope of expertise ranges from IPOs, project-related bond issuances, high-yield and investment-grade debt and equity offerings, to listings on stock exchanges, exchange offers, offers for share acquisitions and debt securities, and hybrid securities. The department features several widely-respected partners, namely: Rodrigo Ochagavía, whose expertise covers the energy, mining, banking and insurance sectors; José Luis Ambrosy, an expert in capital markets-related projects involving the Chilean authorities; and Felipe Larraín, who is particularly focused on deals with foreign counterparties. Luisa Núñez and Juan José León are additional highly-rated capital markets’ transactions partners, while Cristián Lagos is an experienced counsel. Nicolás Aspillaga and María Jesús Argandoña are the associates to note.

Chile > Projects and infrastructure

Claro & Cia.’s large project finance and development practice has an enviable market reputation for its energy and infrastructure sector experience; more generally, its expertise ranges from project financing, development and construction issues, to operations, acquisitions, sales, and infrastructure-related public concessions. The firm’s broad offering also covers greenfield and brownfield projects, along with power plants, transmission lines and substations. It additionally houses experts in engineering, procurement and construction (EPC), and operation and maintenance (O&M), agreements. The department’s principal figures are Rodrigo Ochagavía, who acts for energy sector-related generation, transmission and distribution companies; project finance specialists Jorge Martín and José María Eyzaguirre F; and José Luis Ambrosy and Luisa Núñez, whose broad practices take in advice on projects involving public works-related concessions in Chile. Also noted, counsel Patricio Smart‘s broad practice takes in EPC, construction contracts and disputes, energy and real estate matters. Former partner Ariel Mihovilovic left the firm in February 2023 to become a candidate for Chile’s Constitutional Council.

Chile > Energy and natural resources > Electricity and hydrocarbons

Full-service market stalwart Claro & Cia. is consistently mandated on high-stakes energy projects, with the firm’s sizeable team covering development, construction, acquisition, sale and financing aspects. Its track record incorporates hydro, wind and solar power plants, liquified gas terminals, gas plants, and transmission lines and sub-stations. Other areas of strength include regulatory work and energy sector-related litigation and arbitration. The practice’s principal figures are Rodrigo Ochagavía, who acts for generators, and transmission and distribution companies; and corporate finance, capital markets, international finance and M&A expert, José Luis Ambrosy. Also integral to the firm’s offering are experienced partners Luisa Núñez and José María Eyzaguirre F. Former partner Ariel Mihovilovic  left the firm in February 2023 to become a candidate for Chile’s Constitutional Council-Region of Magallanes and Chilean Antartic.