Partner

Marie has over a decade of experience working across the spectrum of competition law issues.

Marie advises clients on EU, UK and multijurisdictional merger control, foreign direct investment, cartel investigations, abuse of dominant position, as well as antitrust compliance.

Marie has been a key adviser to leading PE houses, financial sponsors, global financial institutions and corporate clients in large complex matters before the European Commission, UK Competition and Markets Authority and other global antitrust and foreign direct investment agencies. Recently, Marie succeeded in overturning the CMA’s Phase 2 provisional findings to block Copart’s completed acquisition of Hills Motors and obtained a full clearance.

Over the years, Marie also developed an extensive expertise in advising leniency applicants in cartels, bid-rigging and resale price maintenance investigations carried out by competition and financial regulatory authorities in the EU and the UK. Lately, Marie successfully defended Sunset + Vine in the CMA’s investigation into suspected anti-competitive behaviour relating to freelance labour in production and broadcasting as well as a generic pharmaceutical client in relation to the CMA’s excessive pricing and anti-competitive conduct investigations of Prochlorperazine and other generic drugs.

Prior to joining Euclid, Marie worked at Clifford Chance’s antitrust (London and Paris) as well as in-house on a secondment with the Competition team of a leading retail bank in the UK.

Marie has been recognised numerous times for her achievements in antitrust and foreign investment. Marie was named ‘Competition Law Lawyer of the Year’ in the Women in Law Awards 2023 and has been recognised by Who’s Who Legal as a ‘Competition Future Leader’ and ‘Competition Expert’ since 2018.

What clients have to say:

“Marie is one of the most impressive competition lawyers of her generation.”  “Marie Leppard is “an accomplished lawyer”, who is admired for her “excellent judgement” as well as her impressive ability to “quickly establish effective working relationships.” “Marie Leppard is widely recommended by clients, who applaud her “humane, reassuring approach in combination with a brilliant understanding of competition law.”

English, French and Spanish

LLM, University College of London LLB, Law and French, University of Surrey