Katie Costello – Biography
Last update: December 19, 2025Executive profile
Katie was Marine Hull Underwriter at Axa Corporate Solutions, and Account Executive at Marketforce Business Media. Katie Costello joined Markel in 2017. Katie served as Marine Hull and War Underwriter and Marine Hull and War Senior Underwriter for Markel.
Katie Costello is currentlyHead of Hull and War at Markel UK - View - Markel UK org chart
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Education
In 2011, Katie Costello completed a Degree in Business Studies, Business Administration and Management at University of Portsmouth.
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Company Colleagues
- At Markel UK, Katie Costello has 23 colleagues including Richard Napoli (Claims & Legal, National), Tal Potishman (Innovation & Change)…
Industry Colleagues
- In the Insurance industry, Katie Costello has 69,240 colleagues in 3,978 companies located in 106 countries. 20,974 executive movements have been recorded in the last 12 months. Learn more about Insurance.
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