Tannock most recently served as executive VP and chief underwriting officer of the firm. He was also director for ACE Bermuda subsidiary Corporate Officers & Directors Assurance Ltd.
In this newly defined role that will concentrate on the Bermuda market, he will be responsible for the strategic direction and leadership of the Bermuda-based units’ business lines.
Tannock will report to Donal Kelly, XL Insurance international property/casualty regional operating officer.