Enstar Group Limited Ordinary Shares, also called Enstar, is a holding company, which engages in the acquisition and management of insurance and reinsurance companies. It also provides management, consulting, and other services to the insurance and reinsurance industry. Read More It operates through the following segments: Non-life Run-off, Atrium, and StarStone. The Non-life Run-off segment operates through its subsidiaries that run off their property and casualty and other non-life lines of business. The Atrium segment consists of the active underwriting operations and financial results of Northshore, a holding company that owns Atrium and its subsidiaries and Arden. The StarStone segment includes the active underwriting operations and financial results of StarStone Holdings, which offers a broad range of property, casualty, and specialty insurance products to both large multi-national and small and middle-market clients. The company was founded by Paul James O'Shea, Nicholas A. Packer and Dominic Francis Michael Silvester in August 2001 and is headquartered in Hamilton, Bermuda.