Mark Castillo-Bernaus is a partner in the Global Projects and Finance Group and is based in the London office.
Mark has acted for lenders, sponsors and borrowers (including major corporations and state-owned entities) in numerous project finance transactions covering a wide range of sectors such as oil and gas, energy, power/renewables, mining/metals and infrastructure. He has particular experience in large complex multi-sourced project financings in Europe, Middle East and Africa involving export credit agencies and development financial institutions and has led on some of the largest project financings to date.
Mark is a leading individual for projects and project financings in Chambers Global (2022-2025), Chambers UK (2015-2025) and The Legal 500 UK (2023-2025).
Energy and Oil & Gas
Power & Renewables
Mining & Metals
Ranked as Leading Lawyer for Projects, Chambers UK, 2015-2025
Ranked as Leading Lawyer for Projects, Chambers Global, 2022-2025
Ranked as Leading Partner for Emerging Markets, The Legal 500 UK, 2023-2025
"He is a very eloquent and experienced partner who can steer a negotiation through its difficult phases"
Chambers UK 2024
"Mark leads on some of the largest project financing deals” and “knows how to find a balance between borrower and lender interests in the most efficient manner"
The Legal 500 UK 2022
"Mark Castillo-Bernaus is a very affable and effective lawyer who does some of the biggest-ticket deals. He frequently advises on the financing of LNG and petrochemical projects. He is a very hard worker who is always extremely well prepared."
Chambers UK 2021
"Mark is a 'great team player', who is very strong in cross party negotiations, deal management and detailed documentation work."
Chambers UK 2020
"Mark Castillo-Bernaus has been picked out as “very diligent” by his clients, who also note that he fights alongside you in all your efforts.” “His practice centres on providing representation for lender groups financing energy projects"
Chambers UK 2019