Jonathon J. Egerton-Peters

Jonathon J. Egerton-Peters

Counsel, International Litigation and Arbitration; Tax Controversy and Litigation

Jonathon Egerton-Peters is a barrister who focuses on the resolution of international and domestic disputes for many of the world’s leading corporations, investors, entrepreneurs and sovereign states.


Mr. Egerton-Peters acts as counsel in international arbitrations; litigation in the U.K., U.S., multiple offshore jurisdictions (particularly Bermuda, the British Virgin Islands and the Cayman Islands), Cyprus, Ireland, France and a variety of other jurisdictions; tax controversies and disputes (including with Her Majesty’s Revenue and Customs and the European Commission); contentious restructuring disputes; and competition/state aid investigations and related follow-on litigation. His experience spans a significant range of sectors and includes finance and banking, energy, shipping, retail, real estate, airlines, tobacco, pharmaceuticals and telecommunications.

Mr. Egerton-Peters is consistently recognized as a leading practitioner through legal awards and listings in legal directories. In 2021, he was nominated by external counsel and subsequently announced as the sole winner of the Lexology Client Choice Award for Litigation in the United Kingdom. The Legal 500 UK recommends Mr. Egerton-Peters for his work in international arbitration and premium commercial litigation. He is recognized as a Rising Star for premium commercial litigation (The Legal 500) and ranked as a Future Leader in litigation (Who’s Who Legal). Recently, Mr. Egerton-Peters was profiled as one of 10 Future Stars for Financier Worldwide’s inaugural listing of Power Players in complex disputes.

Mr. Egerton-Peters is co-editor of Arbitration World (published by Sweet & Maxwell), one of the leading texts in international arbitration, and he writes and lectures frequently on a range of legal topics. He is a former tutor in contract law and the English legal system at King’s College, London and Queen Mary, University of London.

Recent representative matters as counsel include:

  • acting as lead counsel for the investment vehicle of a leading Russian entrepreneur in an LCIA arbitration concerning outstanding debts and allegations of fraudulent misrepresentation;
  • representing a group of trustee companies and connected ultra high-net-worth (UHNW) individuals in several multibillion-dollar claims brought in an offshore jurisdiction;
  • acting for Dmitri Ananyev in successfully challenging the jurisdiction of the English High Court in proceedings brought by 112 customers of the formerly private Russian bank, Promsvyazbank, concerning allegations of misselling of loan notes. This matter also involved securing the release of significant funds paid into court by Mr. Ananyev and resisting applications for additional freezing order relief;
  • advising and representing several individuals in connection with their authorization to act as directors following a group restructuring;
  • advising Sabre Corporation in connection with its appeal proceedings before the Competition Appeal Tribunal arising out of its proposed acquisition of Farelogix;
  • acting as counsel for an UHNW individual and related investment vehicles in LCIA proceedings and related offshore litigation arising out of claims of unlawful means conspiracy;
  • advising an ad hoc group of noteholders in connection with the €2.3 billion restructuring of Swissport;
  • representing Kingfisher Plc in its appeal against the European Commission’s decision that the U.K.’s Group Financing Exemption in Chapter 9 Part 9A of TIOPA 2010 for certain finance profits of controlled foreign companies partially constitutes illegal state aid;
  • representing a private trust company in offshore legal proceedings in relation to a high-value dispute arising out of a joint venture with state-controlled entities;
  • acting for a global pharmaceutical company in the context of a preliminary European Commission state aid investigation and potential proceedings before the EU courts in relation to the company’s transfer pricing and tax arrangements;
  • representing a consortium comprised of Crescent Petroleum, Dana Gas and Pearl Petroleum in an LCIA dispute with the Kurdistan Regional Government of Iraq. The dispute was one of the highest-value energy disputes in the Middle East and has produced three partial awards worth a total of US$2.2 billion in favour of the consortium;
  • acting for Philip Morris International Inc. in coordinating challenges against the EU’s Tobacco Products Directive (2014/40/ EU) and the proposed introduction of standardised packaging on tobacco products in several EU Member States. This matter involved legal proceedings in England, Ireland and before the Court of Justice of the EU;
  • acting as lead counsel for one of Africa’s largest international energy and infrastructure companies in jurisdiction and merits challenges before the ICC Court of Arbitration arising out of the alleged contamination of petroleum imports;
  • advising a multibillion-dollar global corporation in connection with its global restructuring and representing related affiliates in multiple sets of arbitration proceedings;
  • acting for a global hedge fund in appeals against HMRC closure notices and transfer pricing determinations and representing the fund in a related Mutual Agreement Procedure between the U.S. and U.K. tax authorities;
  • advising and representing a multibillion-dollar company in contentious scheme of arrangements that involved legal proceedings across several jurisdictions;
  • assisting with the enforcement of a damages award of US$100 million made in favour of investors Ron Fuchs and Ioannis Kardassopoulos in ICSID arbitration proceedings against the Republic of Georgia under the Energy Charter Treaty and two bilateral investment treaties;
  • advising a consultancy group in connection with its exposure to allegations of unlawful state aid arising out of its tax rulings/treatment in various EU Member States;
  • acting for a leading international bank in legal proceedings before the English courts regarding a default by a high-net-worth individual under a loan agreement. This representation also involved successfully obtaining worldwide freezing orders in England, a further freezing order in Jersey and taking enforcement action in the British Virgin Islands, Delaware and Jersey;
  • representing a leading hedge fund manager and investment firm in proceedings against HMRC concerning the tax effect of a capital allocation plan;
  • acting for a beauty company in connection with an investigation into allegations of resale price maintenance;
  • representing a U.S. energy company in connection with the global enforcement of arbitration awards made following an ICC arbitration. The dispute arose out of a supply contract for a power station in the Middle East and enforcement required an urgent ex parte anti-suit injunction, which was successfully obtained from the English courts;
  • acting for one of India’s leading real estate developers in a series of interrelated LCIA arbitrations seated in London regarding disputes under Indian law arising out of a development project in India. The matter received a Highly Commended ranking in the Financial Times’ 2014 Innovative Lawyers report;
  • acting for investors seeking the resolution of various disputes arising under the India-Mauritius Bilateral Investment Treaty and before the ICC in Paris;
  • representing shareholders of a major online retail company in multiple LCIA arbitrations concerning allegations of unfair prejudice and breaches of a shareholders’ agreement;
  • acting for a multinational food distributor in connection with allegations of contamination, a related investigation and import restrictions imposed by the EU;
  • assisting the Credit Agricole banking group in a structured finance dispute worth approximately US$1.675 billion. The dispute involved proceedings in London, Jersey and New York, and was ranked by The Lawyer as one of the top cases of 2011; and
  • acting for a global pharmaceutical company and its affiliates in relation to ad hoc arbitrations, seated in London, concerning coverage disputes under Bermuda Form insurance contracts.

Mr. Egerton-Peters assists with numerous pro bono projects each year. He leads the firm’s efforts to support and raise money for Centrepoint, the U.K.’s largest charity devoted to assisting homeless young people. He also has acted as lead counsel in representing victims of the 2017 Manchester Arena terrorist attack. Mr. Egerton-Peters currently serves as an advocate for the Family Court Help Desk, an organization that provides assistance to individuals in family law disputes who lack legal representation.



  • B.C.L., University of Oxford, 2006
  • Bar Vocational Course, BPP Law School, 2008
  • L.L.B., King’s College, London, 2004
  • European Law, Katholieke Universiteit Leuven, 2003


  • Barrister, England & Wales (2008)

Jonathon J. Egerton-Peters

Counsel, International Litigation and Arbitration; Tax Controversy and Litigation