Endurance Specialty Holdings Ltd. is a holding company. The Company, through its operating subsidiaries based in Bermuda, the United States and the United Kingdom, is focused on underwriting specialty lines of personal and commercial property and casualty insurance and reinsurance on a global basis. The Company's portfolio of specialty lines of business is organized into two business segments: Insurance and Reinsurance. The Insurance segment consists of four lines of business: agriculture, casualty and other specialty, professional lines, and property. The Reinsurance segment consists of five lines of business: catastrophe, property, casualty, professional lines and specialty.