We use performance cookies to collect information about how you use our website (for instance which pages you visit most often). Cookies help us to improve your online experience with Aspen. Find out more here


Lorraine Seib

Lorraine Seib



+1 929 265 3739

New York, NY office

Lorraine Seib

Global Head & Head of U.S. Excess Casualty

US Excess Casualty

Lorraine Seib is the Global Head of Excess Casualty at Aspen Insurance. With more than 35 years of experience, Lorraine joined Aspen Insurance in early 2016 from XL Catlin, where she most recently served as President of Global Excess Casualty Insurance. At XL Catlin, she managed a global team and drove growth across various markets and geographies. She has also held previous senior roles at Travelers, Kemper, and Reliance National, and is a respected and sought-after speaker at industry conferences. She has a B.S. in Criminal Studies from the State University of New York (SUNY) Brockport.