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Global Leader

Competition 2020

Professional Biography

WWL Ranking: Recommended

WWL says

Mark Friend is acclaimed for "his in-depth knowledge and experience in merger control issues" and is "well recognised and sought after by many clients". 

Peers and clients say:
"Mark is strong on merger matters."
"Mr Friend is an excellent and dependable lawyer."
"He is immensely experienced and knowledgeable as a practitioner."


Mark Friend is head of Allen & Overy LLP's London antitrust practice and has been a partner since 1990, having qualified as a solicitor in 1982. He read law at Cambridge and obtained a master’s degree in EU law from the Université Libre de Bruxelles.

His practice encompasses all aspects of EU and UK competition law (including antitrust litigation); state aid and the economic regulation of utilities, with a focus on energy and water; and the regulation of payment systems. He has extensive experience of counselling and representing clients in complex mergers and strategic alliances, and cartel, dominance and market investigations, at EU and national levels; and in advising public and private sector clients on more general EU law issues.

Chambers notes: “Mark Friend is a highly regarded practitioner who receives strong praise from clients and peers. One source commented: ‘He is ferociously clever and has an ability to get to the heart of something in addition to excellent sector knowledge.’” He is also described as a “‘truly meticulous lawyer of great ability’ who provides ‘a balanced and nuanced understanding of issues’” in the competition section of The Legal 500 (2017).

He has published widely in academic and professional journals, and co-authored the chapter on state guarantees in EU State Aids (edited by Hancher, Ottervanger and Slot, 2016). Mark is a member of the advisory board of the Competition Law Forum.

Allen & Overy's global antitrust and competition practice comprises over 120 specialists operating across APAC, Europe and North America. The practice advises corporate clients and financial institutions on their global antitrust transactions, policies, litigation and regulatory strategies, and regularly acts on some of the highest-profile and most complex cases in the market.

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