Recognised for its expertise in shareholder disputes, Marriott Harrison LLP represents individuals, trusts, investment and advisory entities, aviation and engineering companies, insolvency practitioners, and international corporate vehicles. Department lead Tamar Halevy has extensive experience handling high-stakes and high-value commercial disputes. Simon de Broise is knowledgeable in shareholder claims, civil fraud and contentious insolvency matters. Duncan Henderson, who joined from CANDEY in October 2025, is focused on commercial disputes and sanctions. Despina Devons has been key in high-profile employment litigation. Joseph Tendler works closely with ultra-high-net-worth individuals. Izabau Rothman and Callum Castling are key contacts.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Lawyer & team quality
Key clients
- Charlie Maynard MP
- Rodiston Ltd
- Niels Nielsen and the Zedra Trust Company (Jersey) Limited, as Trustee of the Saber III Trust
- MHA Advisory Ltd
Work highlights
Advised Liberal Democrat MP Charlie Maynard, who intervened—and later appealed—in proceedings under Part 26A of the Companies Act 2006 concerning the £16bn restructuring plan proposed for Thames Water Utilities Holding Limited.
Advised Rodiston Ltd in its claim in the Commercial Court against a Turkish corporate defendant and an individual resident in Turkey for repayment of a total of $32,285,613.01 (including interest) due pursuant to three loan agreements.
Advised an individual to the multi-million High Court proceedings issued by X-R Touring LLP following his and his team’s move to William Morris Endeavour.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Tamar Halevy
Other key lawyers
Duncan Henderson; Despina Devons; Joseph Tendler; Izabau Rothman; Callum Castling