‘Outstandingly good at delivering tailored assistance’, ONTIER LLP’s London team specialises in high-value, international disputes. Known for technology disputes, the team is also notably experienced in crypto matters. The London disputes practice is led by ‘experienced and canny disputes lawyer’ Oliver Cain, who is a fraud disputes expert. The department also includes commercial disputes, insolvency and restructuring practitioner James Dixon, and Felicity Potter, who assists with multi-jurisdictional disputes. Aoife Keane left the firm in December 2023, while Amy Harvey left in August 2024.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Outstandingly good at delivering tailored assistance in cases requiring additional lawyering, without trying to take over the case or the client.’

  • ‘The team has unique capabilities and knowledge in the crypto sphere. Capable of running the largest and most complex multi-jurisdictional cases.’

  • ‘Oliver Cain’s common sense, commercial awareness, tactical thinking and attention to detail combine to create a standout practitioner in his field.’

  • ‘Oliver Cain is extremely hard-working and detail oriented.’

  • ‘Oliver Cain is an experienced and canny disputes lawyer, with a keen eye for the procedural pothole and an excellent sense of the shape and needs of the case.’

Key clients

  • Aerium Finance
  • 154 Bayswater Road
  • Gunvor UK
  • Emar Al-Bayadir For Development & Trading
  • Tulip Trading
  • Wright International Investments
  • Cameroon Holdings
  • Storfund

Work highlights

  • Acting for two of 41 defendants (Ely Michel Ruimy and Aerium Finance) in relation to a $875m multi-party fraud claim brought by the Public Institution for Social Security of Kuwait against Fahad Al-Rajaan and others.
  • Acting for a Middle Eastern property owner in a dispute with a development manager, in respect of fees arising out of the redevelopment of a £50m property overlooking Hyde Park.
  • Acting for David Lloyd in a breach of contract claim against Filip Lademacher in relation to a Bitcoin mining business.

Practice head

The lawyer(s) leading their teams.

Oliver Cain

Other key lawyers

James Dixon, Felicity Potter, Nicholas Dawson