**Exhibit21**

**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 S.A.                                   |       | 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 Colombia  S.A.                         |       | Colombia                                         |       |                                                                       |
| 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                                        |       |                                                                       |

 

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| Watson Wyatt Insurance  Consulting Pte Ltd            |   | Singapore     |   |   |
|-------------------------------------------------------|--------|---------------|--------|--------|
| 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      |   | U.K.          |   |   |
| Consulting Holdings  Limited                          |   |          |   |   |
| Watson Wyatt Trustees  Limited                        |   | U.K.          |   |   |
| Watsons International  Limited                        |   | U.K.          |   |   |
| RWS Trustee Limited                                   |   | U.K.          |   |   |
| Watson Wyatt Pretium  Limited                         |   | U.K.          |   |   |
| Watson’s Pensioneer  Trustees Limited            |   | U.K.          |   |   |
| Watson Wyatt Services  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)             Allof these subsidiaries do business under their own name or under the name WatsonWyatt Worldwide.

 

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