Mr Jan Erik Janssen > Stek > Amsterdam, Netherlands > Lawyer Profile

Leidseplein 29
1017 PS Amsterdam
Jan Erik Janssen photo

Work Department

Competition & Regulated Markets.


Jan Erik is a partner at Stek and has ample experience in EU and Dutch competition law, including State aid and public procurement, and sector-specific regulation. He litigates in administrative and civil proceedings and represents international and national corporates before Dutch and European competition and regulatory authorities and policy makers. Jan Erik has been consistently recommended as one of the leading energy and regulated markets lawyers in the Netherlands.


2006: Partner Stek; 2002: Partner Allen & Overy.


Dutch, English, German.


Netherlands Bar (1994).


Nyenrode (business administration), University of Utrecht (law), Erasmus University Rotterdam (economics).

Lawyer Rankings

Netherlands > Energy: regulatory

Stek‘s energy practice is considered ‘top-notch‘ throughout – ‘this is a firm where you can happily leave a matter in the hands of the associates‘. Jan Erik Janssen is ‘the best energy regulatory lawyer in the Netherlands‘ and the team ‘knows what is happening in the energy sector and has a good mix of energy, competition, and state-aid expertise‘. Counsel Stephanie Dielemans ‘has good industry knowledge and is a good choice for procurement law as well‘. Martha Brinkman, formerly a counsel with the firm, left for a position with the Ministry of Economic Affairs and Climate Policy.