Aspen Insurance Holdings to Host Investor Day on 10 June, 2010

Hamilton, Bermuda - 24 March, 2010 — Aspen Insurance Holdings Limited (the “Company”) (NYSE:AHL) today announced that it will host its 2010 Investor Day on Thursday, June 10, 2010 in New York City.  Aspen’s senior management will conduct presentations on corporate strategy, underwriting fundamentals, risk and capital management, and provide a detailed review of the Company’s product offerings.

Further details regarding attendance, agenda and webcast will be provided closer to the event date.

About Aspen Insurance Holdings Limited

Aspen provides reinsurance and insurance coverage to clients in various domestic and global markets through wholly-owned subsidiaries and offices in Bermuda, France, Ireland, Singapore, the United States, the United Kingdom, and Switzerland. For the twelve months ended December 31, 2009, Aspen reported gross written premiums of $2,067.1 million, net income of $473.9 million and total assets of $8.3 billion. Its operating subsidiaries have been assigned a rating of “A” (“Strong”) by Standard & Poor’s, an “A” (“Excellent”) by A.M. Best and an “A2” (“Good”) by Moody’s Investors Service. For more information about Aspen, please visit www.aspen.bm.