Stef Feyen

Portrait of Stef
Stef Feyen is counsel within the Brussels Public Law & Regulatory practice, and passionate about public law. He advises clients, assists them in complex transactions and defends their interests before administrative, constitutional and civil courts. He has particular expertise and extensive experience in public contracts and setting up forms of cooperation with public authorities and affiliated entities. Stef is highly skilled in energy, sustainability and environmental law, and has broad skills in governance and regulatory practice.
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  • Work highlights
    • Engie Electrabel on the Belgian CRM, the support mechanism that aims to safeguard the security of supply in Belgium
    • Bionerga / Biostoom in the development of a heat net and more generally, the project developments involved
    • Fedasil in brokering several deals and disputes aiming to provide shelter to applicants seeking international protection
    • Altrio in navigating the healthcare landscape to promote growth and cooperation
    • Ghelamco in a complex dispute relating to the Eurostadium project
  • What others say
    • Clients describe the team, of which Stef is a 'key lawyer', in The Legal 500 (2023) as being "very responsive with high quality legal advice which is pragmatic and to the point", adding "It is a real pleasure working with this team. Particular mentions for Jens Mosselmans, who is very responsive and to the point, and Stef Feyen, with his in-depth knowledge."
    • The team is praised in Chambers (2023) for its "very comprehensive knowledge and experience in Belgian constitutional and administrative law" and confirms that the team is "able to deliver support in a short period of time."
  • Ancillary function

    From 2010 to 2017, Stef was Fellow with the Research Foundation - Flanders (FWO). In 2015 he was a guest Ph.D. researcher at New York University. From 2010 to 2022 he was a teaching assistant at KU Leuven and the Université Saint-Louis. He has been a research associate at the Université Saint-Louis since 2022.

    Stef is promovendus with the Ius Commune Research School (Maastricht University) since 2012, as well as an Honorary Fulbright Scholar (2010) and a BAEF Fellow (2009).

    He closely follows the implementation of European and Belgian decarbonisation policies and new trends in e.g. heat networks, hydrogen, (rechargeable) batteries and the infrastructure developing in these areas.

    For several years, he has been an active member of NautaDutilh's Diversity & Inclusion committee, which is a driving force behind the Brussels office's diversity policy.

  • Qualifications

    In 2009, Stef obtained a Master's degree in Political Science from KU Leuven and graduated from Harvard Law School in 2010. In the course of 2024, he will complete a Master's degree in corporate law at KU Leuven.

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