Aspen Insurance Holdings Limited is a Bermuda-based holding company. The Company's principal business is marketing and underwriting specialty insurance and reinsurance. The Company provides reinsurance and insurance coverage to clients in various domestic and global markets through its wholly owned subsidiaries in Australia, Bermuda, Canada, Singapore, Switzerland, the United Kingdom and the United States. It operates through two segments: Aspen Re and Aspen Insurance. Aspen Re segment provides reinsurance to ceding companies. It provides property catastrophe reinsurance, property reinsurance, casualty reinsurance, and specialty reinsurance. Aspen Insurance segment offers a range of insurance products consisting of first party and specialty insurance, casualty and liability insurance, and financial and professional lines insurance.