Thomas Duggan – Biography
Last update: January 9, 2026Executive profile
Thomas was Chief Claims Officer, Environmental at Ironshore Insurance, and Environmental Underwriter at Zurich North America. Thomas Duggan joined Mosaic Insurance in 2024. Thomas served as Head of Claims, Environmental Liability at Mosaic Insurance.
Thomas Duggan is currentlyHead of Claims, North America and Head of Claims, Environmental Liability at Mosaic Insurance - View - Mosaic Insurance org chart
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Education
Thomas Duggan has a bs from Saint John's University in 1996 and a jd from Saint John's University School of Law in 1999.
They have also studied at Saint John's University :
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They have also studied at Saint John's University School of Law :
- Mark Volpe - Regeneron Pharmaceuticals
- Jennifer Koester - Sphere Entertainment
- John Martinez - Parsons
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- At Mosaic Insurance, Thomas Duggan has 99 colleagues including Mitchell Blaser (Co-CEO), Caroline Foulger (Chairman of the Board)…
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- In the Insurance industry, Thomas Duggan has 69,240 colleagues in 3,978 companies located in 106 countries. 20,957 executive movements have been recorded in the last 12 months. Learn more about Insurance.
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