Stephan Noller, 48 – Serial Entrepeneur from Cologne, Germany. Specialized in data-driven business models. Co-Founder of nugg.ad, Calliope, trackle and ubirch. Blockchain Enthusiast – ubirch offers a Blockchain for Things, trackle will be the first in-body Blockchain sensor on the market. Vice-President of german association for the digital industry bvdw, member of the advisory board for the german ministry of economics and energy.