Sompo, a global provider of property, casualty, specialty insurance and reinsurance, has appointed Sarah Stanley as Chief Executive Officer (CEO) of Sompo UK following the recent completion of its acquisition of Aspen.
The new position, which is effective immediately subject to regulatory approval, will report to Alessa Quane, chief executive of international markets, and will remain based in London.
Stanford has been CEO of Aspen UK since March 2024 and will now lead all of Sompo’s property and casualty insurance business in the UK. She succeeds Bob Thaker, who will leave Sompo later this year to pursue other opportunities.
Seck will support Stanford in the coming months to ensure a smooth transition.
Quane commented on the appointment: “Sarah is an outstanding insurance professional who has achieved great success in leadership roles at Aspen, particularly as CEO of Aspen UK.
“Her experience, energy and insights will be invaluable as we bring the two organizations together, enabling her to drive our combined UK business as we enter the next exciting stage of Sompo’s growth story.”
Announced in August 2025, the acquisition was completed through the purchase of 100% of Aspen’s outstanding Class A common stock, with an initial transaction value of $3.5 billion.
