Document:

EX-10.2

 Exhibit 10.2 

AMENDMENT TO EMPLOYMENT AGREEMENT 

This Amendment to Employment Agreement (this “Amendment”) is entered into as of June 29, 2015, by and between Willis
Group Holdings Public Limited Company (the “Company”) and John Greene (“Executive”). 
 WHEREAS,
the Company and Executive are parties to that certain Employment Agreement, effective as of March 19, 2014 (the “Employment Agreement”); 

WHEREAS, the Company intends to enter into a business combination transaction with Towers Watson & Co. (the “Proposed
Merger”) pursuant to the terms of an Agreement and Plan of Merger among the Company, Citadel Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of the Company, and Towers Watson & Co., a Delaware corporation,
dated as of June 29, 2015 (the “Merger Agreement”), as approved by the Board of Directors of the Company; 

WHEREAS, the Company desires to provide Executive with retention incentives in connection with the Proposed Merger; and 

WHEREAS, the Company and Executive desire to amend the terms of the Employment Agreement in accordance with this Amendment, effective
upon, and subject to, the closing date of the Proposed Merger. 
 NOW, THEREFORE, in consideration of the continued employment of the
Executive with the Company, the covenants contained herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 

1. Amendment. Section 3 of the Employment Agreement is hereby amended to include the following as a new sentence after subsection
(f): 
 “In addition, and notwithstanding anything herein to the contrary, for purposes of this Agreement, the consummation of the transactions
contemplated under the Agreement and Plan of Merger, dated as of June 29, 2015, by and among the Company, Citadel Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of the Company, and Towers Watson & Co., a
Delaware corporation, shall constitute a Change in Control.” 
 2. General. 

(a) The effectiveness of this Amendment shall be conditioned upon the continued employment of the Executive until the closing date under the
Merger Agreement. 
 (b) In the event that the Merger is not consummated or the Merger Agreement is terminated in accordance with its terms,
this Amendment shall be null and void. 
 (c) Except as specifically provided in this Amendment, the Employment Agreement will remain in
full force and effect and is hereby ratified and confirmed. To the extent a conflict arises between the terms of the Employment Agreement and this Amendment, the terms of this Amendment shall prevail. 

 (d) This Amendment may be executed in one or more counterparts, each of which shall be deemed an
original and shall have the same effect as if the signatures hereto and thereto were on the same instrument. 
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intentionally left blank] 

  
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 IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement as of the day and
year first above written. 
  

			
	WILLIS GROUP HOLDINGS PUBLIC LIMITED COMPANY
		
	By:		 /s/ Dominic Casserley

	Name:		Dominic Casserley
	Title:		Chief Executive Officer
	
	JOHN GREENE
	
	 /s/ John Greene

Date: June 29, 2015

  
 3EX-10.3

 Exhibit 10.3 

AMENDMENT TO EMPLOYMENT AGREEMENT 

This Amendment to Employment Agreement (this “Amendment”) is entered into as of June 29, 2015, by and between Willis
Limited (the “Company”), a subsidiary of Willis Group Holdings Public Limited Company (“Willis”), and Timothy Wright (“Executive”). 

WHEREAS, the Company and Executive are parties to that certain Employment Agreement, effective as of December 17, 2007, as amended
on April 30, 2014 (the “Letter Amendment”) (the “Employment Agreement”); 
 WHEREAS, Willis
intends to enter into a business combination transaction with Towers Watson & Co. (the “Proposed Merger”) pursuant to the terms of an Agreement and Plan of Merger among Willis, Citadel Merger Sub, Inc., a Delaware
corporation and a wholly-owned subsidiary of Willis, and Towers Watson & Co., a Delaware corporation, dated as of June 29, 2015 (the “Merger Agreement”), as approved by the Board of Directors of Willis; 

WHEREAS, the Company desires to provide Executive with retention incentives in connection with the Proposed Merger; and 

WHEREAS, the Company and Executive desire to amend the terms of the Employment Agreement in accordance with this Amendment, effective
upon, and subject to, the closing date of the Proposed Merger. 
 NOW, THEREFORE, in consideration of the continued employment of the
Executive with the Company, the covenants contained herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 

1. Amendment. The Letter Amendment and Employment Agreement are hereby amended to include the following in the Letter Amendment after
the last sentence of the “Change in Control” definition: 
 “In addition, and notwithstanding anything herein to the contrary, for purposes
of the Contract of Employment, the consummation of the transactions contemplated under the Agreement and Plan of Merger, dated as of June 29, 2015, by and among Willis, Citadel Merger Sub, Inc., a Delaware corporation and a wholly-owned
subsidiary of Willis, and Towers Watson & Co., a Delaware corporation, shall constitute a Change in Control.” 
 2.
General. 
 (a) The effectiveness of this Amendment shall be conditioned upon the continued employment of the Executive until the
closing date under the Merger Agreement. 
 (b) In the event that the Merger is not consummated or the Merger Agreement is terminated in
accordance with its terms, this Amendment shall be null and void. 
 (c) Except as specifically provided in this Amendment, the Employment
Agreement will remain in full force and effect and is hereby ratified and confirmed. To the extent a conflict arises between the terms of the Employment Agreement and this Amendment, the terms of this Amendment shall prevail. 

 (d) This Amendment may be executed in one or more counterparts, each of which shall be deemed an
original and shall have the same effect as if the signatures hereto and thereto were on the same instrument. 
 [Remainder of page
intentionally left blank] 

  
 2 

 IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement as of the day and
year first above written. 
  

			
	WILLIS LIMITED
		
	By:		 /s/ Susan Smith

	Name:		Susan Smith
	Title:		Human Resources Director
	
	TIMOTHY WRIGHT
	
	 /s/ Timothy Wright

	Date: June 29, 2015

  
 3EX-10.4

 Exhibit 10.4 

AMENDMENT TO EMPLOYMENT AGREEMENT 

This Amendment to Employment Agreement (this “Amendment”) is entered into as of June 29, 2015, by and between Willis
North America Inc. (the “Company”), a subsidiary of Willis Group Holdings Public Limited Company (“Willis”), and Todd Jones (“Executive”). 

WHEREAS, the Company and Executive are parties to that certain Employment Agreement, dated July 1, 2013, as amended on
April 30, 2014 (the “Letter Amendment”) (the “Employment Agreement”); 
 WHEREAS, Willis
intends to enter into a business combination transaction with Towers Watson & Co. (the “Proposed Merger”) pursuant to the terms of an Agreement and Plan of Merger among Willis, Citadel Merger Sub, Inc., a Delaware
corporation and a wholly-owned subsidiary of Willis, and Towers Watson & Co., a Delaware corporation, dated as of June 29, 2015 (the “Merger Agreement”), as approved by the Board of Directors of Willis; 

WHEREAS, the Company desires to provide Executive with retention incentives in connection with the Proposed Merger; and 

WHEREAS, the Company and Executive desire to amend the terms of the Employment Agreement in accordance with this Amendment, effective
upon, and subject to, the closing date of the Proposed Merger. 
 NOW, THEREFORE, in consideration of the continued employment of the
Executive with the Company, the covenants contained herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 

1. Amendment. The Letter Amendment and Employment Agreement are hereby amended to include the following in the Letter Amendment after
the last sentence of the “Change in Control” definition: 
 “In addition, and notwithstanding anything herein to the contrary, for purposes
of this Agreement, the consummation of the transactions contemplated under the Agreement and Plan of Merger, dated as of June 29, 2015, by and among Willis, Citadel Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of
Willis, and Towers Watson & Co., a Delaware corporation, shall constitute a Change in Control.” 
 2. General. 

(a) The effectiveness of this Amendment shall be conditioned upon the continued employment of the Executive until the closing date under the
Merger Agreement. 
 (b) In the event that the Merger is not consummated or the Merger Agreement is terminated in accordance with its terms,
this Amendment shall be null and void. 
 (c) Except as specifically provided in this Amendment, the Employment Agreement will remain in
full force and effect and is hereby ratified and confirmed. To the extent a conflict arises between the terms of the Employment Agreement and this Amendment, the terms of this Amendment shall prevail. 

 (d) This Amendment may be executed in one or more counterparts, each of which shall be deemed an
original and shall have the same effect as if the signatures hereto and thereto were on the same instrument. 
 [Remainder of page
intentionally left blank] 

  
 2 

 IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement as of the day and
year first above written. 
  

			
	WILLIS NORTH AMERICA INC.
		
	By:		 /s/ Andrew Wasserman

	Name:		Andrew Wasserman
	Title:		Senior Vice President & General Counsel
	
	TODD JONES
	
	 /s/ Todd Jones

	Date: June 29, 2015

  
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