In May 2024, Allen & Overy and Shearman & Sterling completed a transatlantic merger, forming A&O Shearman. The firm retains a prominent position in the London competition market, advising a prolific roster of blue-chip multinationals and financial services clients on the full scope of competition and antitrust matters. The team is renowned for its ability to handle high-value, multijurisdictional mergers, cartels, behavioural investigations, contentious matters and FDI issues. Antitrust co-chair Dominic Long, who splits his time between the London and Brussels offices, specialises in complex cross-border merger clearances and cartel investigations, while Matthew Readings regularly advises clients across a myriad of industries on merger control and FDI clearances. Praised as ‘very reassuring and calm in a crisis’, Philip Mansfield stands out for his expertise in the tech sector, while Thomas Masterman advises on the full spectrum of competition matters and, alongside co-head Long, has developed the firm’s UK national security and FDI practice.
Testimonials
Collated independently by Legal 500 research team.
‘Philip Mansfield is very reassuring and calm in a crisis, instils confidence in clients, provides clear advice and can manage difficult conversations well.'
- 'Imogen Carr - recently newly promoted to partner, which is very well deserved. She is very capable, knowledgeable and hardworking, and also very user-friendly. She is able to provide practical advice rather than simply giving a technically correct legal opinion.'
Key clients
- American Tower Corp
- AP Moller Maersk
Work highlights
- Advised Broadway Technology on the sale of all its equity interests to Bloomberg L.P. for a purchase price of USD450m in cash.
- Representing GE, in relation to multijurisdictional merger control and FDI reviews of the proposed sale of its nuclear steam turbine business to EDF.