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Future Leaders

Future Leaders

Future Leader

WWL Ranking: Future Leader

WWL says

Thomas Masterman is "excellent with merger control work" report peers. In particular, they add, "His knowledge in the media and entertainment sector is phenomenal."


Tom Masterman is counsel in Allen & Overy LLP’s antitrust group. Tom joined the firm as a trainee in 2004 and was promoted to counsel in 2015. He is currently based in London, having spent periods of his career in Brussels. His practice covers all aspects of competition law across a variety of industries, with particular expertise in the TMT sector where he has advised on a number of the most high-profile transactions in recent years. 

Tom has secured EU, UK and international merger clearances for many clients, including Phase II and remedies cases before the EU and UK competition authorities. His experience includes advising: 21st Century Fox on EU merger control and UK public interest aspects of its £27.7 billion takeover bid for Sky, and its subsequent US$71 billion acquisition by The Walt Disney Company; Tullett Prebon on the CMA clearance (with remedies) of its £1.6 billion acquisition of rival ICAP; 21st Century Fox on the EC clearance of the Endemol/Shine joint venture, creating the world’s largest TV production company; Tesco Mobile as an interested third party and potential remedy taker on the European Commission's Phase II prohibition of the Three/O2 UK merger; and Thomson Corporation on the Phase II clearance (with remedies) of its acquisition of Reuters, including the subsequent General Court appeal.   

On the behavioural side, Tom has advised on a number of the largest and most high-profile EC cartel cases in recent years, including the FX spot trading, auto-parts, LCD, gas insulated switchgear and heat stabilisers investigations. He was also a core member of the A&O team that won the Global Competition Review Behavioural Matter of the Year award in 2016 for the firm’s role on the credit defaults swap investigation.

Tom is recognised by The Legal 500 as having “in-depth knowledge” and by Chambers and Partners as demonstrating “high levels of technical expertise, coupled with a commercially minded and pragmatic approach”. He has also been identified as a ‘Future Leader’ by Who's Who Legal, who note that he “combines deep industry knowledge with a top-drawer intellect to solve client problems”.

Allen & Overy's antitrust and competition practice comprises over 120 specialists operating across Asia, Australia, Europe and North America. The practice advises corporate clients and financial institutions on their global antitrust policies, litigation and regulatory strategies and has acted on some of the highest-profile and most complex cases in recent years.

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