Signature Litigation
Nicholas Rayner
Associate
E: [email protected]
T: +44 (0)20 3818 3500
Nicholas Rayner
2026 Legal500 UK: Leading Firm 2025 Legal500 EMEA: Top Tier Firm 2026 Chambers: Firm

Biography

Nicholas is an Associate specialising in commercial and financial litigation in London.

He has particular experience of defending professional services firms and financial institutions in complex, high-value claims involving allegations of breach of contract, professional negligence, and breach of statutory duty. Nicholas also has experience of defending professional services firms and engagement partners subject to large-scale regulatory investigations.

Prior to joining Signature Litigation, Nicholas trained and qualified as an Associate at Clyde & Co LLP. He has also completed a secondment at Deloitte.

The quality of their service has always been exceptional. The team excels at developing and coordinating litigation strategies that are not only thorough but also realistic and perfectly aligned with clients' expectations. 
— The Legal 500 EMEA 2026

Experience

  • Representing Renault in the NOx Diesel Emissions Group Litigation in London, proceedings of an unprecedented scale (with around 1.8 million claims issued against car manufacturers) and complexity. In an extensive liability ruling in July, the High Court rejected all claims against Renault.
  • Representing a broad range of clients during high-value commercial disputes including major insurers and reinsurers, global accounting firms, and international law firms.
  • Defending professional services firms and engagement partners subject to large-scale regulatory investigations, from the opening of the investigation to the determination of sanctions.