- CEO
- Mark Bertrand Cloutier
- Full Time Employees
- 1,053
- Sector
- Financial Services
- Industry
- Insurance - Property & Casualty
- Address
- 141 Front Street Hamilton Bermuda HM 19
- IPO Date
- May 7, 2013
- Business
- Aspen Insurance Holdings Limited (NYSE: AHL-PC) is a Bermuda-domiciled holding company focused on specialty insurance and reinsurance underwriting worldwide. The company operates through two primary segments: Insurance, encompassing property and casualty insurance, marine, aviation and energy insurance, financial and professional lines insurance, casualty coverage, and first-party products; and Reinsurance, including property catastrophe reinsurance, other property reinsurance, casualty reinsurance, and specialty reinsurance across property, casualty, and other lines. It distributes these products primarily through brokers and reinsurance intermediaries, serving clients in Australia, Asia, the Caribbean, Canada, the United States, the United Kingdom, Europe, and other international markets from underwriting hubs in the U.S., U.K., and Bermuda. Founded on May 23, 2002, by Christopher O'Kane and Julian Michael Cusack, and headquartered at 141 Front Street in Hamilton, Bermuda, Aspen employs approximately 1,100 people and reported gross written premiums of $4.6 billion for 2024. In August 2025, Aspen announced its acquisition by a wholly owned subsidiary of Sompo International Holdings in a $3.5 billion all-cash transaction, unanimously approved by both boards and expected to close in the first half of 2026 subject to regulatory approvals, enhancing Sompo's global specialty insurance and reinsurance footprint while positioning it as a top-10 global reinsurer.