Stefan Randl joined Siegfried in January 2025 as Chief Scientific Officer. Prior to joining Siegfried, he spent 16 years at Evonik, where he held various leadership positions in several regions, most recently as Vice President Innovation Management Health Care, based in Frankfurt, Germany, and as Vice President Drug Substance, based in Indiana, US. He also headed Sales & Services for Health Care in Asia, based in Tokyo. He holds a PhD in Organic Chemistry from the Technische Universität Berlin and is a German citizen.