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

(Leading individuals)

Jan Erik JanssenStek

Stek‘s energy and utilities practice offers a combination of regulatory, transactional and financing expertise. It continues to advise electricity and gas distribution companies on a broad range of regulatory matters and business-critical issues. The team is at the forefront of regulatory developments and often represents clients before the Dutch regulatory authority in the Administrative High Court for Trade and Industry. Practice head Jan Erik Janssen acts for international and national energy household names on administrative and civil litigation matters.

Netherlands > EU and competition

Stek’s team, which is ‘young, talented and on top of its game’, is a key name in the market for antitrust litigation and cartel and consumer protection investigations. The group is also noted for its healthcare, technology, travel, energy, consumer goods and maritime sector expertise; clients include Atlas Air, L’Oréal and Samsung. Ruben Elkerbout and Berend Reuder jointly lead the competition team, and Jan Erik Janssen heads up the regulated markets group.