Exhibit 21

INTERACTIVE DATA CORPORATION SUBSIDIARIES

as of December 31, 2007



|                                                                                                                     |  |                                                 
|-------------------------------------------------------------------------------------------------------------------- |  | ------------------------------------------------
|Subsidiary Name                                                                                                      |  | State or country ofincorporation or organization
|Infotec Holdings Corp.                                                                                               |  | Delaware                                        
|Subsidiaries of Infotec Holdings Corp.                                                                               |  |                                                 
|Infotec Capital Management Corporation                                                                               |  | Delaware                                        
|Interactive Data Pricing and Reference Data, Inc.                                                                    |  | Delaware                                        
|Subsidiaries of Interactive Data Pricing and Reference Data, Inc.                                                    |  |                                                 
|Exshare Financial, Inc.                                                                                              |  | Delaware                                        
|Interactive Data Canada, Inc.                                                                                        |  | Canada                                          
|FT Information (Philippines) Inc.                                                                                    |  | Philippines                                     
|IDCO Worldwide Holdings Ltd.                                                                                         |  | United Kingdom                                  
|Subsidiaries of IDCO Worldwide Holdings Ltd.                                                                         |  |                                                 
|IDCO Overseas Capital Management Ltd.                                                                                |  | United Kingdom                                  
|IDCO Overseas Holdings Ltd.                                                                                          |  | United Kingdom                                  
|Subsidiaries of IDCO Overseas Holdings Ltd.                                                                          |  |                                                 
|Interactive Data (Australia) Pty Ltd.                                                                                |  | Australia                                       
|Interactive Data (Singapore) PTE Ltd.                                                                                |  | Singapore                                       
|FT Interactive Data (Ireland) Ltd.                                                                                   |  | Ireland                                         
|FT Interactive Data (Jersey) Ltd.                                                                                    |  | Channel Islands, UK                             
|eSignal (Europe) Ltd.                                                                                                |  | United Kingdom                                  
|Interactive Data (Hong Kong) Ltd.                                                                                    |  | Hong Kong, PRC                                  
|Interactive Data Corporation France S.A.S.                                                                           |  | France                                          
|Interactive Data (Europe) Ltd.                                                                                       |  | United Kingdom                                  
|Subsidiaries of Interactive Data (Europe) Ltd.                                                                       |  |                                                 
|Exshare Financial (US) Ltd.                                                                                          |  | United Kingdom                                  
|Exshare Statistical Services Ltd.                                                                                    |  | United Kingdom                                  
|W & W Ltd.                                                                                                           |  | United Kingdom                                  
|Exshare Computing Ltd.                                                                                               |  | United Kingdom                                  
|Subsidiary of Exshare Computing Ltd.                                                                                 |  |                                                 
|The Exchange Telegraph Company Ltd.                                                                                  |  | United Kingdom                                  
|Detective Nominees, Inc.                                                                                             |  | Delaware                                        
|GTIS Corporation                                                                                                     |  | Delaware                                        
|Subsidiary of GTIS Corporation                                                                                       |  |                                                 
|GTIS Europe, Ltd.                                                                                                    |  | United Kingdom                                  
|                                                                                                                     | 
|Interactive Data Real Time Services, Inc.                                                                            |  | New York                                        
|BI Purchasing, Inc.                                                                                                  |  | Utah                                            
|Checkrite International, Inc.                                                                                        |  | Utah                                            
|Subsidiary of Checkrite International, Inc.                                                                          |  |                                                 
|Checkrite, Ltd.                                                                                                      |  | Colorado                                        
|Subsidiaries of Checkrite, Ltd.                                                                                      |  |                                                 
|Checkrite of California, Inc.                                                                                        |  | California                                      
|Checkrite of Minnesota, Inc.                                                                                         |  | Minnesota                                       
|Checkrite of Oregon, Inc.                                                                                            |  | Oregon                                          
|Checkrite of Kansas City, Inc.                                                                                       |  | Kansas                                          
|Checkrite Oklahoma City, Inc.                                                                                        |  | Oklahoma                                        
|CSN, Inc.                                                                                                            |  | Utah                                            
|eSignal, Inc.                                                                                                        |  | Delaware                                        
|eSignal.com, Inc.                                                                                                    |  | Delaware                                        
|Bonneville Equipment Company                                                                                         |  | Utah                                            
|Shark Holdings, Inc.                                                                                                 |  | Delaware                                        
|Data Broadcasting Corp.                                                                                              |  | British Virgin Isles                            
|Interactive Data Managed Solutions, LLC                                                                              |  | Delaware                                        
|Interactive Data Management & Services Verwaltung GmbH                                                               |  | Germany                                         
|Subsidiary of Interactive Data Management & Services, LLC and Interactive Data Management & Services Verwaltung GmbH |  |                                                 



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|                                                                       |  |                                                 
|---------------------------------------------------------------------- |  | ------------------------------------------------
|Subsidiary Name                                                        |  | State or country ofincorporation or organization
|Interactive Data Management & Services GmbH & Co. K.G.                 |  | Germany                                         
|Subsidiaries of Interactive Data Management & Services GmbH & Co. K.G. |  |                                                 
|Interactive Data Managed Solutions Nordic Oy                           |  | Finland                                         
|Interactive Data Managed Solutions AG                                  |  | Germany                                         
|Subsidiaries of IS.Teledata AG                                         |  |                                                 
|Interactive Data Managed Solutions S.r.l.                              |  | Italy                                           
|Interactive Data Managed Solutions S.L.                                |  | Spain                                           
|Interactive Data Managed Solutions Ltd.                                |  | United Kingdom                                  
|Interactive Data Managed Solutions AG                                  |  | Switzerland                                     
|Interactive Data Managed Solutions SAS                                 |  | France                                          
|IS.Teledata MD Solutions France SAS                                    |  | France