Allied World’s Benjamin Howell to Speak at the Courses & Seminars Continuing Professional Development - Financial Institutions Seminar in Hong Kong

PEMBROKE, Bermuda -

Allied World Assurance Company, Ltd, a member company of Allied World Assurance Company Holdings, Ltd (NYSE: AWH) today announced that Benjamin Howell, Vice President, Professional Liability, Asia, will be presenting at the Courses & Seminars Limited Financial Institutions Seminar, to be held on 5 November, 2009 in Hong Kong.

The seminar is entitled ‘Investment Managers - Developments in Litigation and Possible Solutions.’ Mr. Howell’s presentation will cover the correlation between the global recession and the rising professional liability exposures facing investment managers, recent professional liability claims events and insurance as a supplement to internal controls.

Mr. Howell is responsible for Allied World’s Professional Liability business in Hong Kong and specializes in the development of products for and management of a diversified portfolio of professional liability risks. He was formerly a Vice President at AIG, Financial Lines, responsible for AIG’s Financial Institutions and Crime Insurance portfolios throughout Southeast Asia and China. He is a regular presenter on a variety of insurance-related topics and holds a Bachelor of Applied Finance and Laws (Honours) from Macquarie University, Sydney.

About Allied World Assurance Company

Allied World Assurance Company Holdings, Ltd, through its subsidiaries, is a global provider of innovative property, casualty and specialty insurance and reinsurance solutions, offering superior client service through offices in Bermuda, the United States, Europe and Hong Kong. Our insurance and reinsurance subsidiaries are rated A (Excellent) by A.M. Best Company. For further information on Allied World, please visit our website at www.awac.com.

Cautionary Statement Regarding Forward-Looking Statements

Any forward-looking statements made in this press release reflect our current views with respect to future events and financial performance and are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties, which may cause actual results to differ materially from those set forth in these statements. For example, our forward-looking statements could be affected by the ability to recognize the benefits of the Darwin Professional Underwriters, Inc. acquisition; pricing and policy term trends; increased competition; the impact of acts of terrorism and acts of war; greater frequency or severity of unpredictable catastrophic events; investigations of market practices and related settlement terms; negative rating agency actions; the adequacy of our loss reserves; the company or its subsidiaries becoming subject to significant income taxes in the United States or elsewhere; changes in regulations or tax laws; changes in the availability, cost or quality of reinsurance or retrocessional coverage; adverse general economic conditions including those related to the ongoing financial crisis; and judicial, legislative, political and other governmental developments, as well as management’s response to these factors, and other factors identified in our filings with the U.S. Securities and Exchange Commission. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date on which they are made. We are under no obligation (and expressly disclaim any such obligation) to update or revise any forward-looking statement that may be made from time to time, whether as a result of new information, future developments or otherwise.

Source: Allied World Assurance Company, Ltd

Media, Faye Cook, VP, Marketing & Communications, +1-441-278-5406, faye.cook at awac.com, or Investors, Keith J. Lennox, Investor Relations Officer, +1-646-794-0750, keith.lennox at awac.com, both of Allied World Assurance Company