Kate McMahon, Partner

Civil Fraud & Asset Recovery, Crypto & Digital Assets Fraud, Investigations, Private Prosecutions

Legal 500 Leading Partner United Kingdom 2026Chambers Top Ranked UK 2026 – Kate McMahon

Kate is a co-founder of Edmonds Marshall McMahon, the UK’s leading private prosecution firm and a highly ranked civil fraud and investigations firm. She typically acts for nation states, financial institutions and high-net-worth clients.

Chambers Top Ranked testimonial — Kate McMahon, Financial Crime: Private Prosecutions, London (Firms)

She has a superior track record across all aspects of investigation, prosecution and asset recovery. Her areas of expertise include large-scale international corruption, cross-border fraud, perverting the course of justice, and the interplay between civil and criminal matters. She successfully led the largest private prosecution in the UK to date.

Kate is known for her incisive analysis and strategic vision, having had conduct of large fraud, corruption and trade mark cases. Her matters typically involve significant political angles. She is highly regarded by her clients and has a reputation for being extremely determined and driven in all her cases. She has been described as an “Outstanding prosecutor” who provides “intellectual leadership”. She is also praised for her “high intelligence, tactical acumen and great client care skills”.

Prior to founding Edmonds Marshall McMahon, Kate prosecuted for the Serious Fraud Office, where she worked as a senior lawyer on bribery and corruption cases. She worked on some of the UK’s largest criminal prosecutions, including the “Innospec” case. This was the first global settlement in the UK and involved systemic corruption by a UK/US company in Iraq and Indonesia.