News 24 Jun. 2021
Curtis successfully defends foreign states' procedural privileges in the UK Supreme Court
News 23 Jun. 2021
Ibrahim Elsadig joins Curtis as Partner in Dubai
News 09 Aug. 2021
Curtis, Mallet-Prevost, Colt & Mosle enters into association with Chevalier Law in Singapore.
Event 23 Apr. 2021
Partner Borzu Sabahi to speak on Damages, Enforcement and Annulment of Arbitral Awards at Executive Training Program hosted by the Government of India and the Indian Institute of Foreign Trade
Event 07 Sep. 2021
Simon Batifort and Andrew Larkin Speak at the European Society of International Law’s 2021 Annual Conference
Client Alert 06 Sep. 2021
Disclosure of Beneficial Ownership in 2021 – Luxembourg Perspectives – Alert 5 of the Series
Partner Elisa Botero Speaks on Panel within Framework of Colombia's 4th National Arbitration Competition
News 30 Aug. 2021
Curtis Returns to SCOTUS in Historic Sequel on the Rights of Citizens in Puerto Rico
News 16 Aug. 2021
Curtis Establishes Presence in Saudi Arabia
News 26 Jul. 2021
Curtis' Private Client Group and Attorneys Recognized in the 2021 Chambers High-Net-Worth Guide.
Client Alert 24 Jun. 2021
U.S. Insight: Update on Virtual Notarization (Executive Order 202.7) During the COVID-19 (Coronavirus) Pandemic (Updated: June 24, 2021)
U.S. Insight: Update on Virtual Witnessing (New York Executive Order 202.14) During The COVID-19 (Coronavirus) Pandemic (Updated: June 24, 2021)
Paris Managing Partner
P +33 1 42 68 72 00
F +33 1 42 66 39 62
Managing partner of the Paris office, Geoffroy Lyonnet is a leading international arbitration lawyer with extensive experience in handling high-stakes investor-state and international commercial arbitrations conducted, in particular, under the International Chamber of Commerce (ICC), International Centre for Settlement of Investment Disputes (ICSID), United Nations Commission on International Trade Law (UNCITRAL) and Stockholm Chamber of Commerce (SCC) rules.
Mr. Lyonnet’s arbitration activities have involved international disputes in a variety of fields, including mergers and acquisitions, oil and gas, concessions, agriculture projects, distribution and construction. His experience includes representing private sector companies and sovereign states or state-owned entities in international arbitrations. He has served as arbitrator, sole arbitrator and party-appointed arbitrator and as an expert witness in French and international arbitration law before U.S. courts.
Mr. Lyonnet also lectures on international arbitration and is Co-Chair of the ICC task force that publishes the ICC Guide to National Procedures for Recognition and Enforcement of Awards under the New York Convention.
Geoffroy Lyonnet has also developed significant expertise in domestic and international business law and transactions, including corporate contracts, particularly in the energy and telecommunications sectors, mergers and acquisitions, investment management and funds.
Mr. Lyonnet’s corporate experience includes M&A, investment management and funds and international contracts, including distribution agreements and contracts relating to the exploration, production sharing, shipment and commercialization of natural gas and telecommunication contracts with both private and state-owned entities.
Prior to joining the firm in 1988, he worked with Unilever.
Commercial Disputes - Arbitration
Mergers and Acquisitions
Energy (Oil & Gas)
News 17 Dec. 2020
Curtis Brings in Bichot & Associés in Paris
News 15 Dec. 2020
Kazakhstan Secures US$1.9 Billion in Settlement of Arbitral Dispute
Chambers Global 2021 Dispute Resolution - Kazakhstan
Chambers Global 2020 France International Arbitration
Legal 500 France
Chambers Global 2019
Legal 500 EMEA 2014