


Thomas is a Founding Partner of the Paris office of Signature Litigation and specialises in international and commercial litigation.
With over 30 years’ experience in litigation, Thomas represents French and international corporates and financial institutions in international commercial disputes. Previously a Partner in a major international law firm, Thomas joined Signature litigation in 2019.
Thomas has a particular focus in high-stakes disputes involving complex legal issues. His multi-faceted expertise encompasses several industry sectors including automotive, aviation, banking and technology industries.
Thomas is particularly known for his expertise in cross-border litigation, having coordinated many large-scale international disputes and conducted numerous international enforcement proceedings.
Thomas is also involved in civil fraud and asset tracing, corporate, unfair competition and product liability disputes.
Thomas is highly ranked across the Chambers and Partners Guides; he is ranked as a leading expert by Chambers Global and Chambers France 2026 for his litigation and aviation expertise, describing him as a “go-to lawyer in France.” Sources from previous guides praise his “invaluable” advice, experience and knowledge. They further note that Thomas is “an excellent litigator with great commercial awareness” and clients describe him as “spectacularly intelligent” as well as noting that he “takes the time to understand the strategic needs of our business and beyond that he is a very pleasant individual, the full package.” Another client also adds that his “strength is to focus on the details and to be extremely closely involved in directing proceedings.”
The Legal 500 EMEA Guide 2026 ranks Thomas in its ‘Hall of Fame’ for his aviation and commercial litigation practices, and he is also recommended for insurance. Thomas is described as an “outstanding trial lawyer” and clients “appreciate his pragmatic judgement and the reliability of his strategic assessments, which are consistently borne out in practice.” Previous editions of the Guide note that Thomas is “a leader in commercial litigation in France” “demonstrates rare versatility” and is “an excellent strategist in complex cases” whose “recommendations take into account in-depth understanding of his clients’ strategic and commercial issues.” Another referee praises Thomas as “a lawyer mastering legal matters with strategic dimension.”
Recognised by Lexology Index as the “finest product liability lawyer in the country and one of the very best on the continent”, Thomas has a seasoned, wide and multifaceted practice, spanning from contract litigation to corporate and banking disputes as well as to fraud and asset tracing. Thomas has been regarded by Lexology Index as one of two ‘Global Elite Thought Leaders’ in France for Life Sciences: Product Liability, and the directory notes he is a “standout figure in the life sciences market.” Previous editions of this directory has also praised Thomas for his “tough style that is very effective.” In Lexology Index’s Product Liability Defence 2022 Guide, Thomas is recognised as one of its ‘Global Elite Thought Leaders’, who is “highly respected by peers and clients alike for his extensive experience in complex product liability cases.”
Thomas has also been listed as one of the ‘Most Highly Regarded’ practitioners in Lexology Index: Product Liability Defence, which notes that he is “a pre-eminent figure in the French market.” He is an expert in international, cross-border litigation. Thomas “is very client-focused, very pragmatic, and creative with solutions” (Acritas clients survey, 2018). In the Lexology Index Insurance and Reinsurance 2022 Guide, Thomas is ranked as a ‘Thought Leader’ with the guide noting he “has a sterling reputation in the market thanks to his experience in litigation proceedings, particularly those involving the life sciences sector” and “is a well-established name in the insurance market, held in high esteem by peers for his first-tier work on contentious matters.”
Thomas serves as Chair of the Superior Appellate Commission of the French Football Federation (FFF). He is also a past member of the Board of the International Association of Defense Counsel (IADC).
Prior to co-founding the Paris office of Signature Litigation, Thomas was a partner at Hogan Lovells.
Thomas is admitted to the Paris Bar. He is a fluent English speaker and a native French speaker.
Commercial Litigation
Product Liability
Banking and Financial Markets
Civil Fraud, Asset Tracing and Recovery
Commercial Litigation – Aviation
Competition law/Antitrust
2026
Article: French ‘blocking statute’: time for a rethink? – The Law Society Gazette – 10 July 2026
Chapter: Regulation of Legal Profession: France Overview – Thomson Reuters Practice Law – 1 April 2026
2024
Article: Collective Redress & Class Actions 2024 Guide – Chambers and Partners – 7 November 2024
Press Quote: Signature Litigation poursuit ses ambitions de croissance avec l’ouverture d’un bureau à Francfort – Le Monde du Droit – 5 July 2024
Article: Quel avenir pour le contentieux français de la vigilance sous l’ère de la directive européenne ? – Actu Juridique – 14 June 2024
2023
Article: Trends and Developments in Antitrust Litigation (France) – Chambers Global Practice Guide – 30 October 2023
Article: La lenteur de la justice française : constat et perspectives – Gazette du Palais – 21 March 2023
2022
Article: Collective Redress & Class Actions 2022 – Chambers Global Practice Guide – 05 December 2022
Article: Regulation of the Legal Profession in France Overview – Thomson Reuters Country Q&A – 1 December 2022
Article: Antitrust Litigation 2022 – Chambers Global Practice Guide – 2 November 2022
Press Quote: Signature Litigation Paris promeut deux avocates – Décideurs Magazine – 8 July 2022
Press Quote: Signature Litigation Paris : deux nouvelles Counsels – Le Monde du Droit – 4 July 2022
Article: Guide to Product Liability & Safety 2022: France – Chambers and Partners – 23 June 2022
2021
Press Quote: Signature Litigation : une belle croissance en 2021 – Affiches Parisiennes – 22 December 2021
Press Quote: Signature Litigation annonce une croissance de 22 % et une participation annuelle aux bénéfices de 17,6 %, fait unique à Paris – Le Monde du Droit – 21 December 2021
Press Quote: Signature Litigation annonce une croissance de 22 % – Jusristes associés – 15 December 2021
Article: Partners Sylvie Gallage-Alwis and Thomas Rouhette and Associate Nikita Yahouedeou contribute the French Chapter of Chambers Collective Redress & Class Actions 2021 – Chambers & Partners – 9 November 2021
Article: Antitrust Litigation 2021: France, Trends and Developments – Chambers Global Practice Guides – October 2021
Article: La judiciarisation du devoir de vigilance est enclenchée – Compliances – 9 July 2021
Article: Investigative Measures: Domestic and International Legal Aspects – Chapter in Private Enforcement of Competition Law in Europe – June 2021
Article: CDR – Fraud, Asset Tracing & Recovery – CDR – 19 March 2021
2020
Press Quote: SIGNATURE LITIGATION TRIPLE SES RÉSULTATS ET ANNONCE UNE PARTICIPATION ANNUELLE AUX BÉNÉFICES DE 17,2 % – Juristes Associés – 6 October 2020
Article: The rise of data breach litigation – Global Data Review – 18 March 2020
Press Quote: Thomas comments on his wishes for 2020 – Option Droit et Affaires – 8 January
Press Quote: Signature Litigation fête son premier anniversaire à Paris – Le Monde du Droit – 7 January 2020
2019
Article: L’action de groupe : quelle défense pour demain ? – Option Droit et Affaires – 11 December 2019
Article: Class Actions in France: A Unique Scheme that Requires a Tailored Defence Strategy – ICLG – 11 November 2019
Article: French blocking statute reform: An opportunity to strengthen international judicial cooperation? – Thomson Reuters – 17 May 2019
Article: All tied up – Global Data Review – 13 May 2019
Article: New reform proposal to relaunch the French blocking statute raises concerns – FT’s Global Risk Regulator – 7 May 2019
Press Quote: Proposed reforms to French blocking statute would still leave companies “stuck between two evils” – Global Investigations Review – 18 April 2019
Press Quote: C’est si bon for Signature Litigation – Global Legal Post – 17 January 2019
Press Quote: Signature moves into Paris with Hogan Lovells hires after 35% growth – Legal Week – 17 January 2019