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Oliver Marsden

Partner

International arbitration |

Oliver is extremely bright, dedicated and strategic, and he leaves no stone unturned.

Chambers & Partners 2025

Profile details

About Oliver Marsden

Oliver is a specialist in international arbitration.  He advises and represents companies and state governments in arbitrations under commercial contracts and investment treaties and related court proceedings. 

Oliver has experience across a broad range of sectors, encompassing energy (including renewables), banking/finance, insurance, pharma/biosciences, defence/aerospace, industrials, healthcare and entertainment. In particular, he has extensive experience of tax-related disputes against States and post-M&A disputes.  He conducts advocacy before arbitral tribunals and in the English courts, where he holds higher rights of audience.

Oliver is recognised in Chambers & Partners, Who’s Who Legal: Arbitration and The Legal 500 (and included in The Legal 500’s UK “Arbitration Powerlist”).

Qualifications

Education

MA (Hons), Oriel College, Oxford (Classics)

Professional qualifications

Solicitor-advocate (higher courts – civil)