Overview
Jonathon Egerton-Peters acts as an advocate and provides strategic advice in high-stakes, complex and international disputes for many of the world's leading corporations, investors, entrepreneurs and sovereign states.
Jonathon acts as counsel in international arbitrations; litigation across numerous jurisdictions (including the UK, US, Cayman Islands, Bermuda and British Virgin Islands); tax controversies and disputes; contentious restructuring; and competition investigations and related litigation. His experience spans a significant range of industry sectors, including finance and banking, energy, cryptocurrency, shipping, retail, real estate, airline, tobacco, pharmaceuticals and telecommunications.
Jonathon is consistently recognized as a leading practitioner through legal awards and listings in legal directories. In 2024 The Legal 500 noted him as a “standout” international disputes specialist. Who's Who Legal notes that he is renowned for his "extremely high professional standards" and as a "great collaborator" who "demonstrates a keen and crystal-clear expression of the issues." He is recommended by The Legal 500 UK for his work in international arbitration and premium commercial litigation. He is a recognized Rising Star for premium commercial litigation (The Legal 500) and ranked as a Future Leader in both arbitration and commercial litigation (Who's Who Legal). Jonathon was profiled as one of 10 Future Stars for Financier Worldwide's inaugural listing of Power Players in complex disputes. 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.
Jonathon 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.
- Barrister, England & Wales
- Bar Vocational Course, BBP Law School
- B.C.L, University of Oxford
- European Law, Katholieke Universiteit Leuven
- LL.B., King's College London
Representative Matters
- Acted as counsel for an UHNW individual and related investment vehicles in LCIA proceedings and connected offshore litigation in the Cayman Islands and the British Virgin Islands arising out of claims of unlawful means conspiracy.
- Represented the trustees of several Bermuda trusts worth in excess of US$20 billion in multiple cross-border proceedings attacking those trusts, including the largest claim by value ever to come before the Bermuda Supreme Court.
- Represented a global cryptocurrency exchange in High Court proceedings concerning highly contested claims of breach of contract and unlawful termination.
- Acted in a complex competition law dispute before the Competition Appeals Tribunal in a matter valued at over £9 billion.
- Acted for Vodafone International Holdings B.V. in its victory against the Republic of India under the Netherlands-India bilateral investment treaty in relation to India’s attempt to impose a US$5.5 billion liability onto Vodafone and its Indian subsidiary through retroactive withholding taxes, interest and penalties.
- Acted as lead counsel for the investment vehicle of a leading Russian entrepreneur in an LCIA arbitration concerning outstanding debts and allegations of fraudulent misrepresentation.
- Acted for an UHNW individual in an HKIAC arbitration and related court proceedings in relation to a highly complex crypto-related dispute valued at in excess of US$26 billion.
- Acted 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 a Financial Times Innovative Lawyers report.
- Acted 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.
- Advised Sabre Corporation in connection with its appeal proceedings before the Competition Appeal Tribunal arising out of its proposed acquisition of Farelogix.
- Represented a US 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.
- Assisted 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.
- Advised an ad hoc group of noteholders in connection with the €2.3 billion restructuring of Swissport.
- Represented Kingfisher Plc in its appeal against the European Commission's decision that the UK's Group Financing Exemption in Chapter 9 Part 9A of TIOPA 2010 for certain finance profits of controlled foreign companies partially constituted illegal state aid.
- Acted 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.
- Represented 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.
- Acted 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.
- Acted for investors seeking the resolution of various disputes arising under the India-Mauritius Bilateral Investment Treaty and before the ICC in Paris.
- Represented 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.
- Acted 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.
- Acted 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.
- Advised a multibillion-dollar global corporation in connection with its global restructuring and representing related affiliates in multiple sets of arbitration proceedings;
- Acted 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 US and UK tax authorities.
- Acted for an Indian airline in several international arbitrations with a US-based supplier of engine parts.
- Advised and represented a multibillion-dollar company in contentious scheme of arrangements that involved legal proceedings across several jurisdictions.
- Advised and represented several individuals in connection with their authorization to act as directors following a group restructuring.
- Advised 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.
- Represented a leading hedge fund manager and investment firm in proceedings against HMRC concerning the tax effect of a capital allocation plan.
- Acted for a beauty company in connection with an investigation into allegations of resale price maintenance.
- Represented an Indian UHNW individual in relation to a series of highly-contested allegations of fraud.
- Represented shareholders of a major online retail company in multiple LCIA arbitrations concerning allegations of unfair prejudice and breaches of a shareholders' agreement.
- Acted for a multinational food distributor in connection with allegations of contamination, a related investigation and import restrictions imposed by the EU.
- Assisted 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.
- Acted 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.
Speaking Engagements
- "Pulling crypto out of the shadows. What exactly is it, how do you find it and how to enforce against it?", London International Disputes Week 2024, London, June 6, 2024
News & Publications
Press Releases
Steptoe Attorneys Named to Pro Bono Recognition List of England & Wales 2025
April 15, 2025
Client Alerts
Regulatory Landscape in the EU and the UK: Key Considerations in 2024
January 22, 2024
By: Renato Antonini, Eva Monard, Byron Maniatis, Yongqing Bao, Elli Zachari, Ruxandra Cana, Eléonore Mullier, Alexandra Melia, Zoe Osborne, Guy Soussan, Anne-Gabrielle Haie, Charles Whiddington, Yumiko Takahashi, Zanda Romata, Darren Abrahams, Tom Gillett, Jonathon Egerton-Peters, Michael Lee
Press Releases
Global Arbitration Review Names Steptoe to GAR 100 for Seventh Consecutive Year
April 13, 2023
Events
Seminars & Events
Pulling crypto out of the shadows
June 6, 2024
Speakers: Jonathon Egerton-Peters, Sebastian Neave (J.S. Held), Henry Burrows (Hoptrail)
Noteworthy
- Lexology Index, "Future Leader", Arbitration (2025)
- Lexology Index, "Future Leader", Commercial Litigation (2023-2025)
- Legal 500 UK, "Rising Star," Premium Commercial Litigation (2023)
Professional Affiliations
- LCIA
- International Bar Association
- Chartered Institute of Arbitrators
- British Institute of International and Comparative Law