William Rees
Senior Associate

Will is a senior associate in our commercial disputes and civil fraud team with extensive experience in representing clients across a broad range of high-value and complex commercial disputes, both international and domestic.

Will’s practice focusses upon: international arbitration (under all major institutional rules including LCIA, ICC and LMAA) arising from corporate transactions and the shipping and energy sectors, including with a fraud and/or sanctions element, and high court litigation including: civil fraud claims and associated injunctions; disputes arising from corporate transactions, joint ventures, and directors/ shareholders (including unfair prejudice petitions); and litigation involving sanctions and state immunity issues (often in the banking/ finance context).

Notable Experience

• Acting for an African company in a Mining arbitration in West Africa governed by ICC arbitration rules with a value exceeding USD 100 million. Advising on following on investor/ state arbitration issues.
• Acting for a domestic client in a civil fraud litigation matter supported by worldwide freezing injunction in the art sector.
• Acting for a UAE entity in a litigation matter (including banking and sanctions issues) following an aborted asset sale (oil tanker) in the Commercial Court (the Lawyer Top 20 case 2026).
• Acting for various petitioners and respondents to unfair prejudice petitions relating to companies operating in various sectors under the Companies Act 2006 in the Insolvency and Companies Court. 
• Acting for the Claimant to a domestic LCIA arbitration in relation to a dispute arising from a corporate transaction.
• Acting for various international clients in LMAA shipping arbitrations (cargo claims and claims arising out of various charterparties) and handling high court challenges to arbitration awards.

• Background

  Before joining PCB Byrne LLP, Will worked at an international disputes boutique firm in London. He is a qualified Solicitor Advocate with rights of audience to conduct advocacy in the senior courts of England and Wales. Will has an LLM in International Corporate and Commercial Law from Kings College London. Prior to becoming a solicitor, following undergraduate and postgraduate qualifications in Sports Science, Will had a prior career working as a strength and conditioning coach for Ospreys Rugby (Wales), and maintains a strong interest in all sports.

Contact William