As an independent promoter, agent & label manager, Koen has been active in his local and European underground for two decades. In 2005 he co-founded independent label Subroutine Records, which has released music of over 40 Dutch acts. His platform Yugofuturism introduces acts from Central and Eastern Europe to The Netherlands and vice versa. He initiated the first 24hr festival in Paradiso Amsterdam, highlighting the Dutch underground. Currently, he is curator for festivals Welcome to the Village and Peel Slowly and See, a regular promoter at WORM Rotterdam & OCCII Amsterdam, and a frequent speaker on European conferences on topics that include grassroots international cooperation, exchange and touring.