Clare Ambrose > Twenty Essex > London, England > Lawyer Profile

Twenty Essex

Work Department

  • Arbitration
  • Banking
  • Carriage of goods
  • Commodities
  • Insurance and reinsurance
  • Oil and gas
  • Professional negligence
  • Revenue
  • Shipping 


Clare is a full-time arbitrator with over 25 years’ experience of arbitration and litigation. She has practised from Twenty Essex as a barrister and now as an arbitrator.

She is a Fellow of CIArb and a Centre for Dispute Resolution (CEDR) accredited mediator. In 2017, she became a full member of the LMAA. She was appointed a Deputy High Court Judge in 2018.

Over the past 10 years Clare has developed extensive experience as a commercial arbitrator, with over 200 appointments in international arbitrations. As an international arbitrator, she is regularly appointed as chair, panel member and sole arbitrator in a wide range of disputes, under the rules of the ICC, LCIA, LMAA, SIAC, SCMA and UNCITRAL, and in many ad hoc references.

Most of Clare’s appointments have related to shipping and international trade, shipbuilding and repair, offshore construction and service contracts, energy and natural resources, ship sale and purchase, and commodity trading. However, appointments also include broader commercial disputes including aviation, banking services, competition law, construction projects, distribution agreements, entertainment, pharmaceuticals, professional negligence and share purchase agreements.

She frequently lectures on arbitration issues (having been a university lecturer at Oxford between 1999 and 2002) and is co-author of the leading textbook on shipping arbitration, London Maritime Arbitration (4th edn, Informa 2017).


Called to Gray’s Inn 1992, former fellow of Somerville College and lecturer at Oxford University; ‘B’ Panel of Treasury Counsel; deputy district judge; fellow of Chartered Institute of Arbitrators; co-author of London Maritime Arbitration 3rd Ed (Informa 2009).


French (fluent); Italian (conversational); Spanish (conversational)


  • Baltic Exchange
  • CEDR: Accredited Mediator
  • Chartered Institute of Arbitrators: Fellow
  • Commercial Bar Association
  • LCIA
  • LCIA Young International Arbitration Group: Co-founder
  • London Common Law and Commercial Bar Association
  • LMAA: Full Member


  • University of Cambridge, Queens’ College: LLM, First Class
  • University of Oxford, Somerville College: BA in Jurisprudence, First Class