UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM 8-K

                                 CURRENT REPORT
                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


       Date of report (Date of earliest event reported): November 9, 2004

                          Willis Group Holdings Limited
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             (Exact Name of Registrant as Specified in Its Charter)

                                     Bermuda
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                 (State or Other Jurisdiction of Incorporation)

         001-16503                                        98-0352587
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   (Commission File Number)                    (IRS Employer Identification No.)

                            c/o Willis Group Limited
                               Ten Trinity Square
                            London EC3P 3AX, England
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                    (Address of Principal Executive Offices)

                               (44) (20) 7488-8111
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              (Registrant's Telephone Number, Including Area Code)

                                 Not Applicable
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          (Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
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|_|  Written communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

|_|  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
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|_|  Pre-commencement communications pursuant to Rule 14d-2(b) under the
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|_|  Pre-commencement communications pursuant to Rule 13e-4(c) under the
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Item 8.01. Other Events. On November 9, 2004, Willis Group Holdings Limited ("WGHL") issued a press release (the "Press Release") announcing that it has agreed to acquire Opus Holdings Limited, the UK regional insurance broking and group benefits consultancy business, from European buyout firm Bridgepoint Capital Limited. A copy of the Press Release is attached as Exhibit 99.1 to this Report on Form 8-K and is incorporated herein by reference. Item 9.01. Financial Statements and Exhibits. (c) Exhibits. 99.1 Press Release of WGHL dated November 9, 2004

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. WILLIS GROUP HOLDINGS LIMITED Date: November 9, 2004 By: /s/ Mary E. Caiazzo ------------------- Name: Mary E. Caiazzo Title: Assistant General Counsel

EXHIBIT INDEX Exhibit No. Description ----------- ----------- 99.1 Press Release of WGHL dated November 9, 2004

                                                                    Exhibit 99.1

                      Willis to Acquire Opus Holdings Ltd;
                       Strengthens UK Regional Operations

     LONDON & NEW YORK--(BUSINESS WIRE)--Nov. 9, 2004--Willis Group Holdings
(NYSE:WSH), the global insurance broker, today announces that it has agreed to
acquire Opus Holdings Limited, the UK regional insurance broking and group
benefits consultancy business, from European buyout firm Bridgepoint Capital
Limited. Opus has annual general insurance and group benefits revenues of
approximately GBP 13 million ($24 million). Terms are not disclosed.
     The transaction, which is subject to, among other items, necessary
regulatory approval, is expected to close by year end.
     Following the transaction's completion Opus and the commercial division of
Willis UK & Ireland will merge their operations, with the exception of the IFA
business of Opus, which for regulatory reasons will trade as a separate entity,
independent of Willis, while continuing to work closely with Willis business
units on behalf of its customers.
     Welcoming Opus CEO Ian Brice and his colleagues to Willis, Joe Plumeri,
Chairman and CEO of Willis said, "Our acquisition strategy is to seek out
opportunities which will be a good fit with our operations and culture and have
strong growth potential. Opus is just such a business.
     "In the past few weeks we have completed the acquisition of a majority
stake in Coyle Hamilton, Ireland's largest privately owned insurance broker, and
Jeffries Group, the North West England insurance broker. The acquisition of Opus
sustains this momentum and consolidates our leadership position in the UK and
Ireland market".
     Allan Gribben, Chief Executive of Willis UK & Ireland said, "Opus is an
excellent business. Ian Brice and his colleagues have achieved a tremendous
amount and their entrepreneurial spirit and client-focused approach is well
suited to Willis. In addition, their network of regional offices complements our
own very well. We look forward to their contributions."
     Ian Brice of Opus said "This is great news for everyone connected with
Opus. Proud of our accomplishments, we now look to the future and are excited by
the opportunities which being part of a larger group will bring. In recent years
Willis has been the best performing and most innovative major global broker and
we are very pleased to be joining such a dynamic organization".
     Willis Group Holdings Limited is a leading global insurance broker,
developing and delivering professional insurance, reinsurance, risk management,
financial and human resource consulting and actuarial services to corporations,
public entities and institutions around the world. With over 300 offices in more
than 80 countries, its global team of 14,500 Associates serves clients in 180
countries. Willis is publicly traded on the New York Stock Exchange under the
symbol WSH. Additional information on Willis may be found on its web site:
www.willis.com.
     Bridgepoint is a leading European private equity firm focusing on
investments in mid-market companies valued up to EUR 500m. It has completed over
150 management buy-outs in the last 10 years. See www.bridgepoint-capital.com

     CONTACT: Willis Group Holdings
              Investors:
              Kerry Calaiaro, 212-837-0880
              Email: calaiaro_ke@willis.com
                            or
              Media:
              Nick Jones, + 44 20 7488-8190
              Email: jonesnr@willis.com
              Dan Prince, 212-837-0806
              Email: prince_da@willis.com
                            or
              Bridgepoint Capital Limited
              James Murray, +44 20 7374 3670
              Email: james.murray@bridcap.com