Morgan, Lewis & Bockius UK LLP is distinguished by its stellar record in defending antitrust and competition investigations, with particular experience with dawn raids conducted by the CMA and European Commission. Dividing his time between London and Brussels, practice leader Frances Murphy is highly active in investigations into the pharmaceutical sector. Leonidas Theodosiou is qualified to practice in the US, UK, and EU — key to his ability to advise on multijurisdictional merger control, FDI, and enforcement matters. Paul Johnson joined the practice from Baker McKenzie in January 2025.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Very approachable and easy to digest advice. Extremely commercial and accommodating.'
- 'Frances Murphy is a phenomenal lawyer - substantively first-rate, teak tough, and with brilliant strategic and tactical instincts. She is also a wonderfully collegiate person and great fun to work with. She is ably supported by Leonidas Theodosiou, who is developing a real reputation for excellence in this area.'
- 'Leonidas Theodosiou is a great advisor, always providing prompt and clear steer. He knows our business and our industry, which is a great help.'
Key clients
- Advanz Pharma
- Focus Pharma
- Mercury Pharma
- Teva
- AstraZeneca
- Carlyle
- Richemont
- PAE
- Daimler Trucks
- Stagecoach
- WE Soda
- Takeda
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Frances Murphy
Other key lawyers
Leonidas Theodosiou; Paul Johnson