Dennis Bertram

SVP, Managing Director Europe, Head of Europe, Cyber; Head of AI Underwriting

Cologne, Germany

Dennis is responsible for Mosaic’s cyber portfolio across the Continent and oversees our regional service company in Europe. He also serves as Head of AI, Underwriting, leading Mosaic’s global initiative to advance the responsible use of artificial intelligence across underwriting and claims, with a focus on improving risk selection, pricing accuracy, and AI-driven product innovation. Previously, he worked as a cyber and crime product manager at Finlex and, before that, served as lead cyber underwriter for Germany, Austria, and Central and Eastern Europe (CEE) at AXA XL. Dennis began his career at Catlin Europe and gained underwriting experience in multiple lines of business. He is a Fellow of the Chartered Insurance Institute (CII).