Partner
Languages spoken
English | French | German
Thomas Delille leads the EU Public Policy team. He supports individual companies and industrial associations in the policy and legal challenges triggered by a variety of EU regulations, with a particular focus on environmental, social and governance (ESG) legislations.
Thomas’ practice covers the full life cycle of regulations, from influencing the inception of EU acts or decisions, developing compliance strategies to address existing regulations, to litigating against adverse regulatory acts.
In addition, Thomas has developed long-standing expertise in addressing complex due diligence and reporting obligations in the context of EU legislations, including the EU Deforestation-free Regulation, the EU Forced Labour Regulation, the EU Batteries Regulation, the Corporate Sustainability Reporting Directive (CSRD), the Corporate Sustainability Due Diligence Directive (CS3D) and the Carbon Boarder Adjustment Mechanism (CBAM).
“Thomas Delille is an excellent lawyer, has great knowledge of the EU regulatory and chemicals legislations, is pragmatic and client oriented.”– Legal 500 2026
“I can only recommend Thomas Delille knowing his professionalism and dedication to quality of work.” – Legal 500 2026
Thomas has solid EU litigation experience before EU courts, as well as the Board of Appeal of the European Chemicals Agency (ECHA) on chemicals regulatory matters. His very successful track record includes tens of cases before the Board of Appeal of ECHA.
Thomas was previously counsel in the regulatory and government affairs practice of another international law firm. Before that, he gained experience at the Court of Justice of the European Union and at the European Parliament and was a researcher at the Centre for European Law of the University of Luxembourg. Thomas also has the editorial role in the firm’s sustainability in business blog. He is also a member of the Board of the Squire Patton Boggs Foundation.
Board of Appeal of ECHA
Court of Justice of the European Union