Aspen Insurance Holdings to Announce Q2 2011 Results on 27 July, 2011

Hamilton, Bermuda – 17 June, 2011 – Aspen Insurance Holdings Limited (“Aspen” or the “Company”; Ticker: NYSE:AHL; BSX: AHL.BH) will release its second quarter 2011 financial results on Wednesday, 27 July, 2011, following the close of U.S. markets.  The Company will host a conference call to discuss its financial results on Thursday, 28 July, 2011 at 9:00 a.m. (Eastern Time).

CONFERENCE CALL PARTICIPATION DETAILS – July 28, 2011 at 9:00 a.m. (ET)

Participant Dial-In Numbers:           +1 (888) 459-5609 (US Toll Free)

                                                            +1 (404) 665-9920 (International)

Password:     ASPEN

Please call to register at least 10 minutes before the conference call begins.

The conference call will be webcast live in the ‘presentations’ section of the Investor Relations page of Aspen's website, which is located at www.aspen.bm.  The earnings press release and a detailed financial supplement will be posted to the website, as well as a brief slide presentation which may be used for reference during the earnings call. 

REPLAY DETAILS

A replay of the call will be available for 14 days via telephone and Internet starting two hours following the end of the live call.

Replay Access:           +1 (800) 642-1687 (US Toll Free)

            +1 (706) 645-9291 (International)

            www.aspen.bm

Replay ID:       76673841

About Aspen Insurance Holdings Limited

The Company provides reinsurance and insurance coverage to clients in various domestic and global markets through wholly-owned subsidiaries and offices in Bermuda, France, Germany, Ireland, Singapore, Switzerland, the United Kingdom and the United States. For the twelve months ended December 31, 2010, The Company 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 financial strength rating of “A” (“Strong”) by Standard & Poor's, an “A” (“Excellent”) by A.M. Best and an “A2” (“Good”) by Moody's Investors Service.

CONTACT:

Investor Contacts:

Aspen Insurance Holdings Limited

Kerry Calaiaro, Senior Vice President, Investor Relations     T: +1 646 502 1076

Kerry.Calaiaro@aspen.bm

Noah Fields, Vice President, Investor Relations        T: +1 441 297 9382

Noah.Fields@aspen.bm

European Press Contact:

Citigate Dewe Rogerson

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

North American Press Contact:

Abernathy MacGregor