Charles Poole-Warren


Charles is an English law qualified finance lawyer, who has been active in the Iberian market for over 25 years.

His clients include financial institutions, corporates and funds, particularly those active in the energy and infrastructure sectors. Recently, he has been involved in energy transition and digitalisation, and has a keen interest in the sustainability agenda.

He advises clients on a range of products in the credit and capital markets, and he has led teams on a number of market-first and innovative transactions over his career. His practice focusses on Spain and Portugal, but he also advises Iberian clients in emerging markets.

Charles leads the firm’s Portuguese desk, working closely with others active in Portugal and other Lusophone speaking countries, including Brazil, Angola and Mozambique.


Representative matters

The arrangers in the financing of the acquisition of Windar Renovables by private equity fund Bridgepoint.

The managers on the issuance of Ferrovial’s debut EUR500M sustainability-linked bond.

The arrangers in the high yield bond financing of the acquisition of Amara NZero by private equity fund Cinven. This operation was the first European high-yield green bond issuance to finance a private equity acquisition.

The arrangers in the financing for Werfen in its acquisition of Immucor in the United States for EUR2bn.

Published Work

  • Poole-Warren, C. (2023). Spain. International Capital Markets, 13th ed.

Leadership Positions And Professional Affiliations

  • Member, Madrid Bar Association.
  • Law Society of England & Wales.
Charles Poole-Warren's deep knowledge and expertise of the market and the transaction itself, coupled with his full dedication and availability, have been instrumental for the success of a landmark and complex transaction.
Chambers & Partners, 2023
I think he is very good, and we love working with him. I believe he is an outstanding lawyer, who is also very accommodating, flexible and client-oriented in his approach.
Chambers and Partners, 2023



Admitted as Solicitor of the Supreme Court, England and Wales, 1999


Bachelor of Laws (LLB) (European Legal Studies), Durham University, United Kingdom, 1991-1995

Erasmus Scholarship, University of Rouen, France, 1993-1994


English, Spanish
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.