EXHIBIT 21.1

SUBSIDIARIES OF ROBERT HALF INTERNATIONAL INC.



|                                               |  |                             
|---------------------------------------------- |  | ----------------------------
|Name of Subsidiary                             |  | Jurisdiction ofIncorporation
|                                               | 
|RH Holding Company, Inc.                       |  | California                  
|                                               | 
|BMK Services, Inc.                             |  | California                  
|                                               | 
|BMK Resources, Inc.                            |  | California                  
|                                               | 
|Robert Half of California, Inc.                |  | California                  
|                                               | 
|Cooperative Resources, Inc.                    |  | California                  
|                                               | 
|Golden State Temporaries, Inc.                 |  | California                  
|                                               | 
|RHI Staffing, Inc.                             |  | California                  
|                                               | 
|Robert Half, Inc.                              |  | California                  
|                                               | 
|Jersey Temporaries, Inc.                       |  | Delaware                    
|                                               | 
|Protiviti Inc.                                 |  | Delaware                    
|                                               | 
|Protiviti Holdings Inc.                        |  | Delaware                    
|                                               | 
|Protiviti SC Inc.                              |  | Delaware                    
|                                               | 
|RH-TM Resources, Inc.                          |  | Delaware                    
|                                               | 
|Protiviti Government Services, Inc.            |  | Maryland                    
|                                               | 
|Penta Advisory Services, LLC                   |  | Maryland                    
|                                               | 
|Robert Half Corporation                        |  | Nevada                      
|                                               | 
|Robert Half Nevada Staff, Inc.                 |  | Nevada                      
|                                               | 
|Robert Half of Pennsylvania, Inc.              |  | Pennsylvania                
|                                               | 
|Protiviti Pty Limited                          |  | Australia                   
|                                               | 
|Robert Half Australia Pty. Ltd.                |  | Australia                   
|                                               | 
|Robert Half Austria GmbH                       |  | Austria                     
|                                               | 
|Protiviti BVBA                                 |  | Belgium                     
|                                               | 
|Robert Half BVBA                               |  | Belgium                     
|                                               | 
|Robert Half Consulting Services BVBA           |  | Belgium                     
|                                               | 
|Protiviti Brasil-Servicos de Consultoria Ltda. |  | Brasil                      
|                                               | 
|Robert Half Assessoria Em Recuros Humanos Ltda |  | Brazil                      
|                                               | 
|Robert Half Trabalho Temporário Ltda           |  | Brazil                      
|                                               | 
|Protiviti Co.                                  |  | Canada                      
|                                               | 
|Robert Half Canada Inc.                        |  | Canada                      
|                                               | 
|Protiviti Hong Kong Co. Ltd.                   |  | China                       
|                                               | 
|Protiviti Shanghai Co., Ltd.                   |  | China                       
|                                               | 
|Robert Half Hong Kong Limited                  |  | China                       
|                                               | 
|Robert Half Czech Republic, s.r.o.             |  | Czech Republic              
|                                               | 
|Protiviti SAS                                  |  | France                      
|                                               | 
|Robert Half International France SAS           |  | France                      
|                                               | 
|Robert Half SAS                                |  | France                      



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|                                                                   |  |                             
|------------------------------------------------------------------ |  | ----------------------------
|Name of Subsidiary                                                 |  | Jurisdiction ofIncorporation
|                                                                   | 
|Protiviti GmbH                                                     |  | Germany                     
|                                                                   | 
|Robert Half Deutschland Beteiligungsgesellschaft GmbH              |  | Germany                     
|                                                                   | 
|Robert Half Deutschland GmbH & Co. KG                              |  | Germany                     
|                                                                   | 
|Protiviti Consulting Private Limited                               |  | India                       
|                                                                   | 
|Robert Half Ireland Limited                                        |  | Ireland                     
|                                                                   | 
|Protiviti S.r.l.                                                   |  | Italy                       
|                                                                   | 
|Robert Half S.r.l.                                                 |  | Italy                       
|                                                                   | 
|Protiviti Japan Co., Ltd.                                          |  | Japan                       
|                                                                   | 
|Robert Half Japan Ltd.                                             |  | Japan                       
|                                                                   | 
|Protiviti Yuhan Hoesa                                              |  | Korea                       
|                                                                   | 
|Robert Half Sarl                                                   |  | Luxembourg                  
|                                                                   | 
|Robert Half Holding Sarl                                           |  | Luxembourg                  
|                                                                   | 
|Protiviti Services S.R.L. de C.V.                                  |  | Mexico                      
|                                                                   | 
|Protiviti S.R.L. de C.V.                                           |  | Mexico                      
|                                                                   | 
|Protiviti B.V.                                                     |  | Netherlands                 
|                                                                   | 
|Robert Half International B.V.                                     |  | Netherlands                 
|                                                                   | 
|Robert Half Nederland B.V.                                         |  | Netherlands                 
|                                                                   | 
|Robert Half New Zealand Limited                                    |  | New Zealand                 
|                                                                   | 
|Protiviti Pte. Ltd.                                                |  | Singapore                   
|                                                                   | 
|Robert Half International Pte. Ltd.                                |  | Singapore                   
|                                                                   | 
|Robert Half International Spain, Empresa de Trabajo Temporal, S.L. |  | Spain                       
|                                                                   | 
|Protiviti Spain S.L.                                               |  | Spain                       
|                                                                   | 
|Robert Half S.L.                                                   |  | Spain                       
|                                                                   | 
|Robert Half GmbH                                                   |  | Switzerland                 
|                                                                   | 
|Robert Half International (Dubai) Ltd.                             |  | United Arab Emirates        
|                                                                   | 
|Protiviti Limited                                                  |  | United Kingdom              
|                                                                   | 
|Robert Half Holdings Limited                                       |  | United Kingdom              
|                                                                   | 
|Robert Half Limited                                                |  | United Kingdom