Gerald Fels, Executive Vice President and CFO of The Commerce Group, Inc., To Speak on November 15, 2005 at the Credit Suisse First Boston Insurance Conference in New York City

The Commerce Group, Inc. (NYSE:CGI) today announced that Gerald Fels, Executive Vice President and Chief Financial Officer, will make a presentation at the Credit Suisse First Boston (CSFB) Insurance Conference in New York City on Tuesday, November 15, 2005, at 8:10 a.m. (EST).

The presentation can be heard live between 8:10 a.m. and 9:00 a.m. by accessing Commerce Group’s website at: http://www.commerceinsurance.com the day of the event. An on-demand version of the presentation will be available within approximately 24 hours of the presentation at the same address for 90 days. A copy of the written portion of the presentation will also be available on the Company’s website under the “Presentations” area of the “News and Investor Information” section.

It should be noted that Mr. Fels’ presentation and remarks might contain certain statements that may be considered forward-looking statements. Commerce Group refers you to its 2004 Form 10-K and September 30, 2005 Form 10-Q for a description of the Company’s business environment and important other factors that may affect its business, including its language regarding forward-looking statements.

Commerce Group is headquartered in Webster, Massachusetts. Property and casualty insurance subsidiaries include The Commerce Insurance Company and Citation Insurance Company in Massachusetts, Commerce West Insurance Company in California and American Commerce Insurance Company in Ohio. Through its subsidiaries’ combined insurance activities, the Company is ranked as the 19th largest personal automobile insurance group in the country by A. M. Best, based on 2004 direct written premium information.