Brian Costanzo – Biography
Last update: February 24, 2026Executive profile
Brian was Tax Senior Manager for Deloitte Tax. Brian Costanzo joined Markel in 2009. Brian served as Senior Vice President, Chief Accounting Officer and Chief Financial Officer, Insurance for Markel.
Brian Costanzo is currentlyGroup Chief Financial Officer and Chief Financial Officer, Insurance at Markel - View - Markel org chart
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Education
Brian Costanzo has a Bachelor of Business Administration in Accounting from University of Nebraska and a Master of Professional Accounting from University of Nebraska-Lincoln.
They have also studied at University of Nebraska :
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They have also studied at University of Nebraska-Lincoln :
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The colleagues of Brian Costanzo
Company Colleagues
- At Markel, Brian Costanzo has 310 colleagues including Thomas Gayner (CEO), Morgan Housel (Director)…
Industry Colleagues
- In the Insurance industry, Brian Costanzo has 69,216 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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