


Philip is a Partner in Signature’s Paris office, specialising in international arbitration.
With over 30 years’ experience as counsel in international arbitration, Philip represents multinational corporations, States, and State-owned entities in commercial and investment treaty arbitrations conducted under the rules of the world’s leading arbitral institutions, including the ICC, LCIA, SCC, DIAC, HKIAC, ICSID, and UNCITRAL.
Philip has represented clients in numerous high-value, multi-jurisdictional disputes. He is widely recognised for his expertise in disputes involving construction and engineering, oil and gas, telecommunications, aviation, pharma, military procurement, and shareholder, agency, and joint venture matters.
Philip is particularly renowned for his work in South-East Asia and the MENA region, though his experience spans numerous jurisdictions worldwide, including Africa, South America, and the Balkans.
Philip’s international arbitration practice increasingly encompasses appointments as arbitrator, serving sole arbitrator as well as co-arbitrator and as chair of tribunals.
In the recent Chambers France 2026 Guide, Philip is ranked for his international arbitration expertise and the Guide notes he “is very experienced lawyer with deep knowledge in commercial transactions and commercial arbitration.” Commentators describe him as an “experienced advocate who knows what he is doing”, and praise him for dealing “with very complex legal issues [for us] excellently.” He is also recognised for paying “attention to the slightest details, both on factual and legal issues.”
Philip has been recognised in the Lexology Index (formerly Who’s Who Legal) every year since 2016 for his arbitration expertise in France. He is also ranked in Chambers France 2026 and in The Legal 500 EMEA 2026 Guide for international arbitration.
The Legal 500 notes Philip “is well versed in complex construction disputes and has a remarkable ability to master the multitude of facts that arise in such disputes. He offers clients sound advice and a measured perspective. He has deep experience in Asia and the Middle East, is perfectly fluent in English and French, and also sits as an arbitrator.” The Guide also notes that Philip will “go to great lengths to learn about his clients – their industries, strengths, assets and liabilities, as well as their concerns, so as to be sure that the solutions he provides would be the most suitable and innovative solutions to suit his clients’ needs.” It further highlights Philip’s “great analytical skills, such that he can parse through complex legal situations to reveal the critical issues at the core, and to then arrive at logical conclusions to resolve them.” The Guide also states that Philip has “excellent people skills” and is “personable, persuasive and able to read others well.”
Philip has been recognised in the Best Lawyers in France guide for Arbitration and Mediation, and International Arbitration every year since 2013, most recently in the 2027 edition. Additionally, Philip is ranked in the ‘Excellent’ category for Arbitration & Litigation: International Arbitration in France in the Décideurs Leaders League 2026 Guide.
Prior to joining Signature, Philip was a partner in Dechert’s international arbitration practice in Paris for 18 years, and before that spent 13 years at Coudert Brothers in London and Paris.
Philip is a member of the International Bar Association, the French Arbitration Committee, the European Chinese Arbitrators Association, Francarbi International Arbitration Association, the International Arbitration Institute and the Society of Construction Law. He also serves on the Steering Committee for the Delos Dispute Resolution Remote Oral Advocacy Programme (ROAP) and as a faculty member on the Delos ROAP programmes for EMEA and Construction.
Philip is admitted as a solicitor of the Supreme Court of England and Wales and to the Paris Bar.
He is a fluent English and French speaker, and also conversant in Spanish.
Infrastructure and Construction Disputes
Oil and Gas Disputes
Technology, Media and Telecommunications Disputes
Pharmaceutical Disputes
Procurement Disputes
Article: Rapport statistique 2023 de la chambre de commerce internationale : la résurgence de l’arbitrage international – 15 October 2024 – Gazette du Palais
Article: Les chiffres-clés de l’arbitrage CCI en 2023 – La lettre Option Droit & Affaires – 7 October 2024
Article: Les enseignements des statistiques de la Cour d’arbitrage internationale de la CCI pour 2023 – Le Monde du Droit – 9 September 2024
Article: ICC Court’s 2023 Statistics Reflect Resurgence in Global Arbitration – Law.com International – 23 July 2024
Press Quote: Signature Litigation : un nouvel associé en arbitrage international – Décideurs Magazine – 2 February 2024
Press Quote: Signature Litigation recrute Philip Dunham en tant qu’associé en arbitrage international – Le Monde du Droit – 26 January 2024
Press Quote: Philip Dunham rejoint Signature Litigation – La Lettre des Juristes d’Affaires – 26 January 2024
Press Quote: Signature Signs Up Arbitration Pro From Dechert In Paris – Law360 – 9 January 2024
Press Quote: Revolving Doors – Legal Business – 5 January 2024
Press Quote: Dechert Partner Joins Signature – Global Arbitration Review – 2 January 2024
Press Quote: Signature signs up former Dechert arbitration partner in Paris – The Global Legal Post– 2 January 2024
Press Quote: Philip Dunham joins Signature Litigation’s Paris office, bolstering global arbitration practice – Solicitors Journal – 2 January 2024
Press Quote: New year, new partner for Signature Litigation – CDR News – 2 January 2024
Article: Dispute Boards: Another Potential Means of Resolving COVID-19 Disputes – Dechert On-Point – April 2020
Article: Construction Arbitration and Concession Contracts – Global Arbitration Review Construction Guide – 3rd edition, 2019
Article: Construction Arbitration and Concession Contracts – Global Arbitration Review Construction Guide – 2nd edition, 2018
Article: Construction Arbitration and Concession Contracts – Global Arbitration Review Construction Guide – 1st edition, 2017
Article: France – The European, Middle Eastern and African Arbitration Review – 2015
Article: Third-party funding: snapshots from around the globe – Global Arbitration Review – March 2012
Article: La consolidation de l’arbitrage commercial international au Brésil : état des lieux en 2008 – Décideurs Stratégie Finance Droit – November 2008
Article: The Use and Abuse of First Demand Guarantees in International Construction Projects – International Construction Law Review – July 2008
Article: Third-Party Litigation Funding and International Arbitration (France) – Global Arbitration Review – March 2008
Article: After 10 Years of Positive Developments, does Confusion Remain in Brazil’s Arbitration Law? – World Arbitration and Mediation Report & Revista de Arbitragem e Mediação – December 2006
Article: Article: Balancing Sovereignty and the Contractor’s Rights in International Construction Arbitrations involving State Entities – International Construction Law Review – April 2006
Article: L’Arbitrage en Amérique Latine : l’éveil du Brésil – Magazine des Affaires – December 2005
Article: L’américanisation de l’arbitrage international – Magazine des Affaires – July 2005
Article: Arbitrage international en Asie: brèves considérations – Décideurs Juridiques et Financiers – May 2005
Article: Current Trends in Investment Treaty Arbitration – Focus Europe – May 2004