Matthieu Gregoire
UK Bar Guide 2025
International Arbitration: General Commercial & Insurance + 1 more ranking
Email address
[email protected]Contact number
+4420782220031Share profile
Band 2
Band 3
About
Provided by Matthieu Gregoire
Practice Areas
Matthieu practices international arbitration, commercial dispute resolution and public international law. Since joining the Bar, Matthieu has:
• Acted and advised in matters before all levels of English courts, in commercial and international disputes.
• Acted and advised in numerous investment treaty arbitrations, brought across many sectors and pursuant to a wide array of investment treaties, with experience of most major arbitration rules (including ICSID, SCC, UNCITRAL and ad hoc rules). Matthieu’s recent experience includes disputes under the OIC Investment Agreement and intra-EU BITs.
• Acted and advised in numerous commercial arbitrations, with experience of most major arbitration rules (ICC, LCIA, SCC, UNCITRAL), across a broad range of sectors and industries, and covering a variety of foreign laws as the applicable law.
• Advised States, non-governmental organisations, private commercial entities and private individuals on a diversity of commercial, arbitration and public international law issues, including treaty interpretation, WTO/Trade law, and implications of Brexit.
Career
Prior to joining the Bar in 2013, Matthieu qualified under the New York Bar in 2011 and worked as an associate in the international arbitration and public international law team of Cleary Gottlieb Steen & Hamilton in Paris, and as a consultant for the Worked Bank. Matthieu combines his practice with academic roles.
Professional Memberships
BA in Law (University of Cambridge); Masters in International Political Economics (Sciences Po, Paris); LLM (Georgetown University, D.C.); BPTC.
Chambers Review
UK Bar
Matthieu Gregoire has notable experience handling LCIA and ICC arbitrations. He is astute at advising government bodies, as well as companies and individuals operating in the energy and mining sectors, among others. He is well versed in both commercial and investment treaty disputes.
Matthieu Gregoire is a PIL specialist barrister with recognised expertise in BIT cases, in which he has represented both investors and defendant states. He is experienced in arbitrations before the PCA, the ICC and other bodies.
Strengths
Provided by Chambers
"Matthieu is an extremely good barrister. He's a genuine star in the making."
"Matthieu is extremely capable in a technical sense, but he's also good with clients because he has experience as a solicitor."
"Matthieu is excellent. He's user-friendly, easy to work with and a great advocate who builds good rapport with the judge."
"Matthieu is a rising star in this field. He's capable of very quickly assimilating vast amounts of information and considering complex legal and commercial issues and providing clear, decisive advice."
"Matthieu is one of the best senior juniors in the London market and beyond. He is extremely capable in a technical sense, but he's also able to interact with clients, since he used to be a solicitor."
"Matthieu is an extremely good barrister. He's a genuine star in the making."
"Matthieu is extremely capable in a technical sense, but he's also good with clients because he has experience as a solicitor."
"Matthieu is excellent. He's user-friendly, easy to work with and a great advocate who builds good rapport with the judge."
"Matthieu is a rising star in this field. He's capable of very quickly assimilating vast amounts of information and considering complex legal and commercial issues and providing clear, decisive advice."
"Matthieu is one of the best senior juniors in the London market and beyond. He is extremely capable in a technical sense, but he's also able to interact with clients, since he used to be a solicitor."