Darwin to Announce Fourth Quarter and Year-end 2007 Financial Results

FARMINGTON, Conn., Feb. 5 /PRNewswire-FirstCall/ -- Darwin Professional Underwriters, Inc. (Darwin) (NYSE: DR) today announced that it expects to release its fourth quarter and year-end 2007 financial results on Wednesday, February 27, 2008. The conference call to discuss the company's fourth quarter and year-end 2007 financial results will be conducted on Wednesday, February 27, 2008 at 5:00 p.m. Eastern Time.

The live webcast of Darwin's earnings conference call can be accessed through Darwin's web site at http://investor.darwinpro.com. Analysts and investors interested in participating in the live conference call may dial in to 866-831-6272 (International callers may dial 617-213-8859) and enter passcode 75268580.

The webcast version of the conference call will be archived on Darwin's web site for one year following the date of the event. A telephonic replay of the earnings conference call will be available shortly after the conclusion of the call on February 27, 2008. To access the telephonic replay, domestic callers may dial 888-286-8010 (International callers dial 617-801-6888) and enter passcode 82954710. The telephonic replay will be available until March 5, 2008.

About Darwin Professional Underwriters, Inc.

Darwin is a specialty insurance group based in Farmington, Connecticut. The company is focused on the professional liability insurance market and underwrites directors and officers ("D&O") liability for public and private companies, errors and omissions ("E&O") liability insurance, medical malpractice liability insurance, and other specialty coverage. Darwin member companies include Darwin Professional Underwriters, Inc., Darwin National Assurance Company (DNA), and Darwin Select Insurance Company (Darwin Select). DNA and Darwin Select have earned a financial strength rating of "A- (Excellent)" from A.M. Best Company. Darwin is traded on the New York Stock Exchange under the ticker symbol, "DR."

For more information about Darwin, visit www.darwinpro.com.