**Exhibit 21**

** **

**WATSON WYATT WORLDWIDE, INC.**

**SUBSIDIARIES**

** **
| **SUBSIDIARY  NAME**                                     | ** ** | **JURISDICTION OF  INCORPORATION/  ORGANIZATION** | ** ** | **Name(s) under which  such subsidiary does  business (if  different)(a)** |
|----------------------------------------------------------|------------|---------------------------------------------------|------------|---------------------------------------------------------------------------------|
|                                                     |       |                                              |       |                                                                            |
| Watson Wyatt Argentina  S.A.                             |       | Argentina                                         |       |                                                                            |
| Watson Wyatt Australia  Pty Ltd                          |       | Australia                                         |       |                                                                            |
| Wycomp Pty Ltd                                           |       | Australia                                         |       |                                                                            |
| Watson Wyatt  Superannuation Pty Ltd                     |       | Australia                                         |       |                                                                            |
| Watson Wyatt NV                                          |       | Belgium                                           |       |                                                                            |
| Watson Wyatt  Insurance & Financial Services SA |       | Belgium                                           |       |                                                                            |
| Watson Wyatt Brasil  Ltda.                               |       | Brazil                                            |       |                                                                            |
| Watson Wyatt Canada ULC                                  |       | Canada, Alberta                                   |       |                                                                            |
| Watson Wyatt Chile S.A.                                  |       | Chile                                             |       |                                                                            |
| Corredores de Seguros Watson Wyatt Limitada              |       | Chile                                             |       |                                                                            |
| Watson Wyatt  Consultancy (Shanghai) Ltd.                |       | China                                             |       |                                                                            |
| Watson Wyatt  Consultancy (Shenzhen) Ltd.                |       | China                                             |       |                                                                            |
| Watson Wyatt Hong Kong  Limited                          |       | China                                             |       |                                                                            |
| Watson Wyatt Insurance  Consulting Ltd.                  |       | China                                             |       |                                                                            |
| Watson Wyatt Investment  Consulting Hong Kong Limited    |       | China                                             |       |                                                                            |
| Watson Wyatt Consultores Colombia S.A.                   |       | Colombia                                          |       |                                                                            |
| Watson Wyatt S.A.R.L.                                    |       | France                                            |       |                                                                            |
| Watson Wyatt GmbH                                        |       | Germany                                           |       |                                                                            |
| Watson Wyatt  Deutschland GmbH                           |       | Germany                                           |       |                                                                            |
| Watson Wyatt Insurance  Consulting GmbH                  |       | Germany                                           |       |                                                                            |
| Watson Wyatt Kft                                         |       | Hungary                                           |       |                                                                            |
| Watson Wyatt (Ireland)  Limited                          |       | Ireland                                           |       |                                                                            |
| Watson Wyatt India  Private Limited                      |       | India                                             |       |                                                                            |
| Watson Wyatt Insurance  Consulting Private Ltd           |       | India                                             |       |                                                                            |
| P.T. Watson Wyatt  Purbajaga                             |       | Indonesia                                         |       |                                                                            |
| P.T. Watson Wyatt  Indonesia                             |       | Indonesia                                         |       |                                                                            |
| Watson Wyatt Italia  s.r.l.                              |       | Italy                                             |       |                                                                            |
| Watson Wyatt K.K.                                        |       | Japan                                             |       |                                                                            |
| Watson Wyatt Insurance  Consulting KK                    |       | Japan                                             |       |                                                                            |
| Watson Wyatt Insurance  Consulting (Korea) Limited       |       | Korea                                             |       |                                                                            |
| Watson Wyatt (Malaysia)  Sdn. Bhd.                       |       | Malaysia                                          |       |                                                                            |
| Watson Wyatt Holdings  (Mauritius) Limited               |       | Mauritius                                         |       |                                                                            |
| Watson Wyatt Mexico, S.A. de C.V.                        |       | Mexico                                            |       |                                                                            |
| Watson Wyatt B.V.                                        |       | Netherlands                                       |       |                                                                            |
| Watson Wyatt European  Region B.V.                       |       | Netherlands                                       |       |                                                                            |
| Watson Wyatt Insurance  Consulting BV                    |       | Netherlands                                       |       |                                                                            |
| Watson Wyatt  Philippines, Inc.                     |       | Philippines                                       |       |                                                                            |
| Watson Wyatt Puerto Rico, Inc.                      |       | Puerto Rico                                       |       |                                                                            |
| Watson Wyatt Singapore  Pte. Ltd.                        |       | Singapore                                         |       |                                                                            |
| Watson Wyatt Insurance  Consulting Pte Ltd               |       | Singapore                                         |       |                                                                            |

 

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| Watson Wyatt de España, S.A.                                                 |   | Spain         |       |       |
|-----------------------------------------------------------------------------------|--------|---------------|------------|------------|
| Watson Wyatt Insurance  Consulting (Spain) SA                                     |   | Spain         |       |       |
| Watson Wyatt A.B.                                                                 |   | Sweden        |       |       |
| Watson Wyatt AG                                                                   |   | Switzerland   |       |       |
| Watson Wyatt (Thailand)  Ltd.                                                     |   | Thailand      |       |       |
| Watson Wyatt Uruguay  S.A.                                                        |   | Uruguay       |       |       |
| Wyatt Trustee Limited                                                             |   | U.K.          |       |       |
| PCL (1991) Limited                                                                |   | U.K.          |       |       |
| PCL Limited                                                                       |   | U.K.          |       |       |
| The Wyatt Company (UK)  Limited                                                   |   | U.K.          |       |       |
| The Wyatt Company  Holdings Limited                                               |   | U.K.          |       |       |
| Watson Wyatt Holdings  Limited                                                    |   | U.K.          |       |       |
| Watson Wyatt Holdings  (Europe) Limited                                           |   | U.K.          |       |       |
| Watson Wyatt  International Limited                                               |   | U.K.          |       |       |
| Wyatt Financial  Services Limited                                                 |   | U.K.          |       |       |
| Wyatt Pension Plan  Trustee Limited                                               |   | U.K.          |       |       |
| Watson Wyatt European  Region Limited                                             |   | U.K.          |       |       |
| Watson Wyatt Limited                                                              |   | U.K.          |       |       |
| Watson  Wyatt (UK) Acquisitions 1 Limited                                         |   | U.K.          |       |       |
| Watson  Wyatt (UK) Acquisitions 2 Limited                                         |   | U.K.          |       |       |
| Watson  Wyatt European Investment LP                                              |   | U.K.          |       |       |
| Watson  Wyatt European Investment Holdings Limited                                |   | U.K.          |       |       |
| Watson Wyatt Insurance & Financial  Services Consulting Holdings Limited |   | U.K.          |       |       |
| Watson  Wyatt Trustees Limited                                                    |   | U.K.          |       |       |
| Watsons  International Limited                                                    |   | U.K.          |       |       |
| RWS  Trustees Limited                                                             |   | U.K.          |       |       |
| Watson  Wyatt Pretium Limited                                                     |   | U.K.          |       |       |
| Watson’s  Pensioneer Trustees Limited                                        |   | U.K.          |       |       |
| Watson  Wyatt Services Limited                                                    |   | U.K.          |       |       |
| Watson  Wyatt Healthcare Trustees Limited                                         |   | U.K.          |       |       |
| Watson  Wyatt & Company                                                  |   | U.S. Delaware |       |       |
| Watson  Wyatt Insurance Consulting, Inc.                                     |   | U.S. Delaware |       |       |
| Watson  Wyatt Canadian Holdings, Inc.                                        |   | U.S. Delaware |       |       |
| Watson  Wyatt Investment Consulting, Inc.                                    |   | U.S. Delaware |       |       |
| Wyatt  Data Services, Inc.                                                   |   | U.S. Delaware |       |       |
| Watson  Wyatt European Investment Holdings, Inc.                             |   | U.S. Delaware |       |       |
| Watson  Wyatt European Investment Holdings 1, LLC                                 |   | U.S. Delaware |       |       |
| Watson  Wyatt European Investment Holdings 2, LLC                                 |   | U.S. Delaware | ** ** | ** ** |
| Watson  Wyatt Insurance & Financial Services, Inc.                  |   | U.S. Delaware |       |       |
| Watson  Wyatt International, Inc.                                            |   | U.S. Nevada   |       |       |

 

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(a)  All of these subsidiaries do businessunder their own name or under the name Watson Wyatt Worldwide.

 

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