Galiya Martirosova | Fieldfisher
Skip to main content
Professional background

Professional background

I act for clients in commercial disputes, financial disputes and claims involving fraud. I also have experience dealing with retail banking and insolvency disputes. I mainly deal with claims before the UK courts, but I have also acted in matters outside the jurisdiction including claims before the EU General Court.

I have particular expertise advising on international sanctions, and deal with both advisory and contentious work. My disputes work includes challenging the listing of individuals and corporate entities subject to sanctions before the UK Courts and EU General Court. 

Current and recent work includes:

  • Successfully resisted a worldwide freezing injunction brought against a high-net-worth individual and Cypriot company in the Commercial Court and acting in their defence to claims alleging unlawful means conspiracy fraud for which damages are claimed at US$ 13.5 billion – one of the largest ever claims issued in the Commercial Court.
  • Acting on behalf of a former director of a Cayman-based hedge fund in his defence against claims brought for wilful default of his duty as director and fraudulent misrepresentation.
  • Acting on behalf of a sanctioned company in its court claims in the UK and EU to challenge its designation.
  • Providing sanctions advice in the context of acquisitions, disposals and new business opportunities in the commercial sector.

I am fluent in Greek, Russian and Armenian. In my spare time I enjoy learning languages and reading.
 

Authored pieces

All Resources
A digital illustration featuring a series of glowing padlocks, alternating between locked (in pink) and unlocked (in blue), against a background of numbers and code. The image symbolizes cybersecurity and data protection.
Press Release

Fieldfisher secures settlement in landmark World-Check child data claim

27.04.2026
European law firm Fieldfisher has secured a successful settlement on behalf of four child claimants in High Court proceedings against Refinitiv Limited concerning the processing of their personal data on the World-Check database.
Learn more
A close-up image of a metallic maze with smooth, polished surfaces. The maze is displayed in shades of purple and blue. A white arrow is seen pointing through the maze, indicating a path.
International trade
Insight

Sanctions: all things equal – analysis of XTX Markets Technologies Ltd v Mazars LLP

30.10.2025
Learn more
A wooden gavel rests on a sound block in the foreground, with a balanced scale of justice in the background. The setting appears to be a courtroom or a law library, indicated by the blurred shelves filled with books.
Insight

US signal ramping up of international sanctions enforcement and enhance incentives for voluntary self-disclosure: the carrot and the stick

17.03.2023
Learn more