Aspen Insurance UK Limited (?Aspen Re?) a subsidiary of Aspen Insurance Holdings Limited (NYSE:AHL), announced that it has been named ?Best Global Reinsurance Company for Specialty Lines? by Reactions magazine.

The Reactions magazine Awards are designed to recognise and reward corporate and individual achievers in the insurance and reinsurance markets. Each year the readership of Reactions magazine is polled to assess which firms, deals and initiatives, as well as industry figures have outperformed.

Aspen was presented with the award for Best Global Reinsurance Company for Specialty Lines based on criteria including the overall client relationship, service, responsiveness and innovation, as voted for by the readers of Reactions magazine. Other nominees in the category were AXIS, Hannover Re, Lloyd's of London and Swiss Re. The award was received at the Reactions magazine Global Awards reception in New York by Lee Tookey, Senior Underwriter and Tom Meyer, Underwriter in Aspen's Specialty Reinsurance team.

Commenting on the announcement, Chris O'Kane, Chief Executive Officer of Aspen Insurance Holdings, said: ?I am particularly pleased by this award as it recognises Aspen's long standing commitment to deliver the best products and services to our clients.?

About Aspen Insurance Holdings Limited

Aspen provides reinsurance and insurance to clients in various domestic and global markets through wholly-owned subsidiaries in London, Bermuda and the United States operating from 12 offices worldwide. For the six months ended June 30, 2007, Aspen reported gross written premiums of $1.1 billion, net income of $236.6 million and total assets of $7.1 billion. For more information about Aspen, please visit www.aspen.bm.

About Aspen Insurance UK Limited (?Aspen Re?)

Aspen Re is the trading name for Aspen Insurance UK Limited, which provides specialty insurance and reinsurance. It is a wholly owned subsidiary of Aspen Insurance Holdings Limited. For more information about Aspen Re, please visit www.aspen-re.com.

Aspen Re
Tania Kerno, + 44 (0) 20 7184 8855
Head of Communications
or
Citigate Dewe Rogerson
Justin Griffiths/Hannah Seward, +44 (0) 20 7638 9571