Aspen U.S. Insurance Announces Strategic Alliance with V3 Insurance Partners to Offer a Miscellaneous Professional Liability and Optional Premises Liability Program

Aspen U.S. Insurance ("Aspen”) is pleased to announce that Aspen has entered into a strategic alliance with V3 Insurance Partners LLC ("V3” or "V3 Insurance Partners”), a managing general underwriting agency, to offer Vantage360^® MPL⁺, a miscellaneous professional liability and optional premises liability program available in all 50 states.

Designed for professional services firms with under $15 million in annual revenues, the program is offered exclusively for wholesale brokers through V3. Coverage will be available on both an admitted and non-admitted basis, and all policies will be written by V3 on behalf of the Aspen Group’s US insurance companies, rated A (Excellent) XV by AM Best as well as Aspen Insurance UK Limited.

The Vantage360^® MPL⁺ offering encompasses more than 450 professional classes, including 65 technology E&O classes, and is offered on an innovative policy form. Unique enhancements include a reputation restoration coverage extension and a consent-to-settle clause with no "hammer” provisions. Optional features include full prior acts, contingent bodily injury and property damage, intellectual property and privacy & network security coverages.

"We are thrilled to announce our partnership with V3, and to introduce Vantage360^® MPL⁺”, commented Ross Goodman, Senior Vice President, Aspen US Insurance. He added: "This program will provide our partners in the wholesale brokerage community with a truly unique offering, including an admitted capability as well as an option to include premises liability coverage. It will also serve as the ideal small account complement to Aspen’s existing portfolio of middle-market and large miscellaneous professional liability accounts.”

"The miscellaneous professional liability market continues to expand. The lack of a significant economic recovery continues to fuel the growth of small, home-based consulting and service businesses. V3 is pleased to work with the creative underwriting and claims professionals at Aspen to develop a customized product, including the premises liability feature, responding to the needs of this market segment,” said Robert Parker, SVP and Professional Lines National Practice Leader, V3 Insurance Partners.

"V3 stands for vision, value and virtue”, said Susan Rivera, President and CEO, V3 Insurance Partners. She continued: "We have an unwavering commitment to anticipate clients’ needs, to offer quality service that exceeds expectations and to deliver genuine value based on years of experience”.

About Aspen U.S. Insurance

Aspen U.S. writes property, casualty and specialty insurance in the U.S. on a surplus lines basis through licensed surplus lines brokers utilizing Aspen Specialty Insurance Company and Aspen Insurance UK Limited. For its admitted products, Aspen American Insurance Company is utilized. In the last 18 months a number of teams have been hired with a specialized focus on underwriting opportunities in Inland Marine and Ocean Risks, Professional Liability, Management Liability and Directors and Officers Insurance which are underwritten in addition to established lines of Property, General Casualty and Environmental Liability. For more information, please visit http://www.aspen.co/

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.

About V3 Insurance Partners LLC

V3 is a Pennsylvania-based premier managing general underwriting agency offering programs targeted at middle market companies. Its four major practice groups Transportation, Professional Lines, Internet Workers Compensation and Property/Casualty are managed by industry leaders chosen for their talent, expertise and integrity. For more information about V3, please visit http://www.v3ins.com or contact Robert Parker at (215) 600-0748.

Application of the Safe Harbor of the Private Securities Litigation Reform Act of 1995: This press release contains written, and Aspen's officers may make related oral, "forward-looking statements" within the meaning of the U.S. federal securities laws regarding its execution of its business plans. These statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that do not relate solely to historical or current facts, and can be identified by the use of words such as "expect," "intend," "plan," "believe," "project," "anticipate," "seek," "will," "estimate," "may," "continue," and similar expressions of a future or forward-looking nature. All forward-looking statements rely on a number of assumptions, estimates and data concerning future results and events and are subject to a number of uncertainties and other factors, many of which are outside Aspen's control that could cause actual results to differ materially from such statements, including changes in market conditions and their impact on our business. For a detailed description of uncertainties and other factors that could impact the forward-looking statements in this release, please see the "Risk Factors" section in Aspen's Annual Report on Form 10-K for the year ended December 31, 2010, filed with the U.S. Securities and Exchange Commission on February 25, 2011.