Simon Day Partner

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 a member of the Financial Services Lawyers Association and is recommended in the Legal 500 directory for EU/competition and competition litigation.

What people are saying


"Simon Day is exceptional and has the rare talent of keeping a calm head while fiercely advocating for his client’s interests."

The UK Legal 500 2024

"Simon is 'a rising star with substantial litigation experience'."

The UK Legal 500 2017

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