Competition Law
London (Bar)
19 years ranked
Provided by Brick Court Chambers
Marie Demetriou KC is widely recognised as a leading advocate in the fields of competition law, EU law, public law and human rights, and is increasingly sought after for her advocacy skills in a broad range of commercial, regulatory and enforcement matters, particularly in the appellate Courts. In 2019-20 Marie won both the Chambers & Partners Competition Silk of the Year and the Legal 500 EU and Competition Silk of the Year awards and was also one of 12 barristers to be named as one of The Lawyer’s Hot 100 2020. Marie is also Star Rated for competition law in the Chambers & Partners directory. Since 2015 Marie has been Standing Counsel to the Competition and Markets Authority, representing the CMA in its major litigation in the courts. Between 2016 and 2018 Marie was Chair of the Bar European Group.
Provided by Chambers
Marie Demetriou KC is routinely involved in the biggest competition cases of the day and receives stellar feedback from an array of sources. She is standing counsel to the CMA and has experience in key appeals against the regulator's decisions. She also advises on both sides of cartel damages claims and has appeared on behalf of proposed class representatives for claimant groups.
Marie Demetriou KC is a highly acclaimed stellar practitioner who advises clients on EU asylum rights as well as representing them in a number of European law judicial review challenges. She also has a leading competition and state aid practice, in addition to regularly assisting clients with jurisdictional matters.
Marie Demetriou KC commands great respect for her expertise in public law cases involving provisions of EU law. She also handles cases concerning human rights, immigration and asylum, and social security provisions. She receives instructions from corporates, as well as regulators.
Marie Demetriou KC is a hugely impressive competition-specialist silk with a vast knowledge of precedent-setting work in collective actions, including certification matters.
Marie Demetriou KC is an esteemed silk demonstrating core strength in areas of human rights such as political protest, immigration and torture. She is typically seen assisting claimants and interveners, regularly representing the UNHCR in important asylum rights cases.
Marie Demetriou KC is noted for her robust sports practice, which sees her instructed on competition law matters, arbitrations and commercial disputes. She is frequently called upon to act in matters involving a variety of sports, including football, golf and Formula 1.
Provided by Chambers
She is a delight to work with and a really good advocate, very clear and persuasive in court. It's not surprising she's one of the top competition lawyers in the UK.
Marie's advocacy is just next level. I've never seen anybody command a courtroom like that; judges are hanging on her every word. Everything she says is imbued with an extra level of authority.
Marie is not just one of the leading figures at the competition Bar, but a leading figure, full stop. A fantastic advocate, very streetwise in terms of spotting the winning point and executing it.
I couldn't put it highly enough to say she is not just one of my favourite people but probably my number one silk to work with. She is incredibly bright, not just in competition but also public law.
Marie could charm the birds from the trees. She has a really smooth, really easygoing advocacy style that doesn't wind up the tribunal ever - it's magical to see. She's tremendous.
She is one of the best in her generation, now one of the top EU and public lawyers. She is an incredibly effective advocate and also a completely lovely person to work with.
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