Aspen Holdings Files 2010 Annual Report on Form 10-K

Hamilton, Bermuda – 25 February, 2011 — Aspen Insurance Holdings Limited (the “Company”; NYSE:AHL) today filed its 2010 Annual Report on Form 10-K with the U.S. Securities Exchange Commission (the "SEC").  The document is on the Company’s website under the Investor Relations section at http://www.aspen.bm, as well as on the SEC's website at http://www.sec.gov .

Printed copies of the Company's complete audited financial statements can be obtained free of charge as follows: write to The Head of Investor Relations, Aspen Insurance Holdings Limited, Maxwell Roberts Building, 1 Church Street, Hamilton, Bermuda HM11, e-mail noah.fields@aspen.bm, or call +1-441-297-9382.

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, Switzerland and Germany. For the twelve months ended December 31, 2010, Aspen reported gross written premiums of $2,076.8 million, net income of $312.7 million and total assets of $8.8 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

Investor Contact:

Aspen Insurance Holdings Limited

Noah Fields, Head of Investor Relations        T: +1 441-297-9382

European Press Contact:

Citigate Dewe Rogerson

Justin Griffiths/Sarah Gestetner                     T: +44 (0) 20 7282 2920

North American Press Contact:

Abernathy MacGregor

Carina Davidson/Allyson Morris                     T: +1 212-371-5999