Ian Gatt > Stewarts Law LLP > London, England > Lawyer Profile

Stewarts Law LLP
Ian Gatt photo

Work Department

Commercial LitigationFraudCompetition LitigationInternational Arbitration and Employment



Ian is an experienced advocate and commercial litigator with more than 30 years’ experience of all forms of dispute resolution. 

Ian’s expertise spans high value commercial, fraud (both criminal and civil), and employment disputes in the UK, Middle East and Asia. In the course of his career he has acted for a wide range of companies, financial institutions and individuals involved in domestic and international litigation and arbitration. Ian has also prosecuted several cases for the Serious Fraud Office.


Ian was previously Head of Advocacy at Herbert Smith Freehills, a team he founded in 2005. Prior to this, Ian was a barrister at Littleton Chambers. He studied Law at Hertford College, Oxford graduating with a first class degree.


Ian is an accredited mediator and has acted in over 100 mediation disputes. From 2000 to 2017 he sat as a Recorder.

Lawyer Rankings

London > Dispute resolution > Banking litigation: investment and retail

Stewarts Law LLP is ‘an outstanding conflict-free firm that is able to take on banks and other financial institutions, which it regularly does – and wins‘. The largest litigation-only law firm in the UK is traditionally known for claimant matters, but it is increasingly being instructed for defence work. The practice also benefits from the firm’s civil fraud practice, which is often involved in disputes over complex financial instruments and structures. It acted for the liquidators of Kaupthing Bank in relation to a €500m claim against Deutsche Bank, which arose from the sale of complex banking derivatives. Clive Zietman is a go-to lawyer in London for large-scale litigation against banks. Also highly rated are Sean UpsonKeith ThomasDavid Hughes,   Marc Jones, Fiona Gillett, Paul Brehony and Ian Gatt QC, along with Lucy Ward and Laura Jenkins. Elaina Bailes and Lorraine Lanceley were promoted to the partnership, and senior associate Joe Mitchell and associate Harry Spendlove are also experienced advisers.

London > Dispute resolution > International arbitration

Stewarts Law LLP ‘has a very strong team of international arbitration practitioners with genuine experience and expertise across different areas of practice‘. The team regularly attracts conflicts-based referral work, as well as instructions from previous cases’ co-counsel and repeat business from existing clients. Philippa Charles leads the international arbitration department, which also showcases Ian Gatt QC, David Hughes and senior associate Veronica Connolly. Daniel Wilmot, whose primary focus is Africa-related disputes and the oil and gas sector, joined as partner from White & Case LLP, while Matthew Knowles left for Hogan Lovells International LLP.