Greg is a Partner and head of the international arbitration group at Osborne Clarke. He specialises in international commercial and bilateral investment treaty arbitration and public international law. He has been recognised as a Future Leader in International Arbitration by Who’s Who Legal. He has acted as counsel and advocate in both international commercial and bilateral investment treaty arbitrations, including in the life sciences and healthcare, financial services, tech, media and comms and energy sectors. Greg has particular expertise in renewable energy arbitrations, including solar and hydroelectric disputes.

Greg has conducted both ad hoc and institutional arbitrations to final award, including under the LCIA, ICC, DIS, and UNCITRAL rules. He has also been appointed as an arbitrator in ICC, LCIA and UNCITRAL proceedings and acted as an expert witness on English arbitration law and practice in the US courts.

Before joining Osborne Clarke LLP as a Partner in 2012, Greg practised from 2000 to 2012 at Freshfields Bruckhaus Deringer LLP, where he was a member of the international arbitration group. Greg is also qualified as a solicitor advocate and has been involved in litigation at all levels of the English court system. In 2004 he served as judicial assistant to the then Lord Chief Justice of England and Wales, The Rt Hon the Lord Woolf.

Greg publishes regularly on international arbitration. Together with Julian D M Lew QC and others, he is an editor of the practitioner text on arbitration law and practice, Arbitration in England. He is also editor of the 2022 publication 'International Arbitration in England: Perspectives in Times of Change' together with Daniel Harrison and Laila Hamzi. As well as presenting at arbitration conferences, Greg is also frequently asked to speak on international arbitration at universities in the UK and abroad (including at the universities of Leiden, Oxford and Reading). He has practised in England and Madrid and his working languages are English and Spanish.

Greg Fullelove’s ability to come up with quick solutions for complex problems is extremely impressive. He is praised as superb under pressure and very well liked and respected by both his clients and colleagues."

Who’s Who Legal


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