Stef Feyen focuses mainly on public law and regulatory issues, with a particular interest in public economic law and constitutional law.

Stef obtained his law degree magna cum laude from the University of Leuven in 2009. In 2010, as a Fulbright Scholar, Stef graduated from Harvard Law School (LL.M.). Afterwards, he started working on a doctoral dissertation on legal argumentation, during the course of which he was a visiting doctoral researcher at New York University.

He is a prolific author of academic research in public law, writ large. He retains his ties with academia, for instance by teaching a course at Saint-Louis University. Stef is also a member of the Leuven Centre for Public Law and is affiliated with the Maastricht University Ius Commune Research School.

Stef's academic experience and expertise bolster his striving towards innovative solutions, that are as much sensible as they are workable, catering to the specific needs of the client.

Stef was admitted to the Brussels bar in 2017. He joined NautaDutilh in 2019 after having worked at a law firm specialized in public law.

Stef speaks Dutch, English and French.