Willis

NEW YORK, January 21, 2011 – Willis Group Holdings plc (NYSE:WSH), the global insurance broker, will announce its earnings for the fourth quarter and year ending December 31, 2010 after the market closes on Wednesday, February 9, 2011. The Willis earnings release will be available in the “Investor Relations“ section of the company's web site, www.willis.com.

On Thursday, February 10, 2011, at 8:00 AM, Eastern Time, Joe Plumeri, Chairman and Chief Executive Officer of Willis Group Holdings, will host a conference call to discuss the company's results and business trends. Interested parties may access the conference call by dialing (866) 803-2143 (domestic) or +1 (210) 795-1098 (international) with a passcode of “Willis.“ Media and individuals will be in a listen-only mode. Participants are asked to dial in a few minutes prior to the call to register for the event.

The conference call also will be webcast live through the Willis web site. Interested parties should go to the "Investor Relations" section of the company's web site to register for the webcast. A replay of the call will be available through March 10, 2011 at 11:59 PM, Eastern Time, by calling (888) 568-0648 (domestic) or + 1 (402) 998-1531 (international) with no passcode, or by accessing the web site.

About Willis

Willis Group Holdings plc is a leading global insurance broker. Through its subsidiaries, Willis develops and delivers professional insurance, reinsurance, risk management, financial and human resource consulting and actuarial services to corporations, public entities and institutions around the world. Willis has more than 400 offices in nearly 120 countries, with a global team of approximately 17,000 Associates serving clients in virtually every part of the world. Additional information on Willis may be found at www.willis.com.