
Slaughter and May is a key port of call for a varied client roster that encompasses a broad range of market-leading domestic and international financial institutions. Co-head Ewan Brown advises boards and institutions on high-stakes FCA investigations and litigation, including leading a landmark FX investigation and its ongoing collective proceedings before the UK Supreme Court. Seasoned litigator, Jonathan Clark, handles complex, multi-jurisdictional regulatory investigations and litigation, with particular experience in benchmark manipulation and large-scale financial disputes. Gayathri Kamalanathan, whose expertise is shaped by extensive in-house experience at global banks, is renowned for her insight in matters involving coordinated regulatory and criminal enforcement. Tim Blanchard and Holly Ware have a deep bench of experts across various regulatory bodies, including the SFO, FCA, UK Competition and Markets Authority, and the European Commission.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Lawyer & team quality
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
- 'Very strong team - strength in depth, all leaders are very in touch with the market.'
Key clients
- JPMorgan Chase Bank NA
- Santander UK Plc and Santander Consumer (UK) plc
Work highlights
Advising JPMorgan in relation to proposed collective proceedings in the Competition Appeal Tribunal (the “CAT”).
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.

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Gayathri Kamalanathan

Holly Ware
Practice head
Ewan Brown
Other key lawyers
Jonathan Clark; Gayathri Kamalanathan; Tim Blanchard; Holly Ware; Deborah Finkler


