DEFA14A


		Voting Items


The Board of Directors recommends you vote
FOR the following:
1.	Election of Directors

	1a.	Dominic Casserley

	1b.	Anna C. Catalano

	1c.	Sir Roy Gardner

	1d.	Sir Jeremy Hanley

	1e.	Robyn S. Kravit

	1f.	Wendy E. Lane

	1g.	Francisco Luzón

	1h.	James F. McCann

	1i.	Jaymin Patel

	1j.	Douglas B. Roberts

	1k.	Michael J. Somers

	1l.	Jeffrey W. Ubben






The Board of Directors recommends you vote FOR proposals 2, 3, 4, 5 and 6.

2.		To ratify the reappointment of Deloitte LLP as independent auditors until the close of the next Annual General Meeting of Shareholders and authorize the Board of Directors, acting through the Audit Committee, to fix the auditor’s remuneration.

3.		To approve, on an advisory basis, the named executive officer compensation.

4.		To renew the board the authority to issue shares under Irish law for issuances up to 33% of the Company’s outstanding share capital.

5.		To grant the board the authority to opt-out of statutory pre-emption rights under Irish law for rights issues and, separately, for issuances up to 5% of the Company’s outstanding share capital.

6.		To authorize holding the 2016 Annual General Meeting of Shareholders at a location outside of Ireland.

NOTE: In their discretion, the proxies are authorized to vote upon such other business as may properly come before the meeting or any adjournment thereof.


¨		Preliminary Proxy Statement
¨		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
¨		Definitive Proxy Statement
x		Definitive Additional Materials
¨		Soliciting Material Pursuant to §240.14a-12



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		Meeting Information
WILLIS GROUP HOLDINGS PUBLIC LIMITED COMPANY		Meeting Type: Annual General Meeting
		For holders as of: April 10, 2015
		Date: June 30, 2015 Time: 9:00 AM EST
		Location: New York, New York



WILLIS GROUP HOLDINGS PLC 200 LIBERTY STREET NEW YORK, NEW YORK 10281	You are receiving this communication because you hold shares in the company named above. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting.
		See the reverse side of this notice to obtain proxy materials and voting instructions.


		— Before You Vote — How to Access the Proxy Materials
		Proxy Materials Available to VIEW or RECEIVE: NOTICE AND PROXY STATEMENT ANNUAL REPORT IRISH STATUTORY ACCOUNTS How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:
		1) BY INTERNET:		www.proxyvote.com
		2) BY TELEPHONE:		1-800-579-1639
		3) BY E-MAIL*:		sendmaterial@proxyvote.com
		* If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before June 16, 2015 to facilitate timely delivery.
		— How To Vote — Please Choose One of the Following Voting Methods
		Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.