This blog is about web & mobile start-ups, ideas, investments and other thoughts…

I’m a Berlin & San Francisco-based serial entrepreneur and investor focussed on online & mobile ventures.

In 2009, I co-founded SponsorPay growing it to the leading cross-platform value-exchange advertising platform globally. Our great team is working out of Berlin (HQ), Paris, London, NY, LA, SF & Tokyo.

As an active angel investor & advisor, I invested in a couple of exciting ventures: digitaleseiten.de (customer acquisition for local businesses), lieferheld.de (online food delivery) & hitfox.com (game distribution)

I’m excited about scalable internet & mobile start-ups with a strong value proposition and visionary teams able to execute fast & with high quality.