Simon specialises in competition litigation and collective actions, and has extensive experience of advising in relation to both High Court trials, proceedings in the Competition Appeal Tribunal and alternative forms of dispute resolution.

He has particular experience of group litigation, both in the context of commercial disputes and in private damages actions for competition law breaches.

His practice includes co-ordinating and advising in relation to English law issues arising out of overseas proceedings, as well as in proceedings brought in the English courts, and he advises corporates, international banks and private wealth funds as well as certain high-net-worth individuals.

Simon is ranked in the Legal 500, Chambers and Partners and Lexology Index (formerly Who's Who Legal) for competition litigation.