Thomas Duggan

Head of Claims, Americas & Head of Claims, Environmental Liability

New York, NY

Tom has more than 25 years’ experience in law, underwriting, and claims, with proven dedication to providing a fair, efficient, and transparent claims experience. He oversees Mosaic’s cyber and transactional liability claims teams through the Americas, and directly handles Mosaic’s environmental claims globally. Tom previously served as head of environmental claims for Liberty Mutual and Ironshore and held various roles in environmental claims and underwriting at Zurich and AIG. He began his legal career as an assistant district attorney in the Brooklyn District Attorney’s Office, New York.