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 > EU and competition

Stek displays strong antitrust litigation experience with a robust knowledge of EU and competition law. The firm’s clientele includes Samsung SDI, L’Oréal, and Simpel. Berend Reuder and Ruben Elkerbout are joint heads of the competition team and Jan Erik Janssen leads the regulated markets team. Also noted is Mattijs Baneke, an ‘impressive associate‘.

Netherlands > Energy: regulatory

(Leading individuals)

Jan Erik JanssenStek

Stek‘s energy and utilities team is recognised for its ‘extensive knowledge and experience on energy law/regulatory‘ and has considerable strength in energy regulatory litigation. The team not only acts for all major electricity and gas distribution companies in the Netherlands in regulatory matters and represents them before the Dutch regulatory authority in the Administrative High Court for Trade and Industry, but also players in the oil and gas, wholesaler and supplier areas. Practice head Jan Erik Janssen is a ‘legal authority‘.