Exhibit 21.1



Corporate Subsidiaries of Open Text Corporation as at July 1, 2005



|                                       |  |               
|-------------------------------------- |  | --------------
|Corporation Name                       |  | Jurisdiction  
|                                       | 
|IXOS Software Australia PTY            |  | Australia     
|                                       | 
|Open Text Pty Ltd.                     |  | Australia     
|                                       | 
|IXOS Software (Austria) GmbH           |  | Austria       
|                                       | 
|Open Text Solutions Software GmbH      |  | Austria       
|                                       | 
|Involv International Corporation       |  | Barbados      
|                                       | 
|Lava Systems                           |  | Barbados      
|                                       | 
|Molton Systems SRL                     |  | Barbados      
|                                       | 
|IXOS Software do Brasil LTDA           |  | Brazil        
|                                       | 
|2015603 Ontario Ltd.                   |  | Canada        
|                                       | 
|2016090 Ontario Inc.                   |  | Canada        
|                                       | 
|2016091 Ontario Inc.                   |  | Canada        
|                                       | 
|2030928 Ontario Ltd.                   |  | Canada        
|                                       | 
|Brokercom Inc.                         |  | Canada        
|                                       | 
|Involv Corporation                     |  | Canada        
|                                       | 
|Open Text Search Limited               |  | Canada        
|                                       | 
|IXOS Software s.r.o                    |  | Czech Republic
|                                       | 
|Artesia Technologies Europe ApS        |  | Denmark       
|                                       | 
|IXOS Software Nordic A/S               |  | Denmark       
|                                       | 
|IXOS Software France SAS               |  | France        
|                                       | 
|Open Text SARL                         |  | France        
|                                       | 
|Gauss Interprise AG                    |  | Germany       
|                                       | 
|IXOS Software AG                       |  | Germany       
|                                       | 
|Open Text eGovernment Deutschland GmbH |  | Germany       
|                                       | 
|Open Text GmbH                         |  | Germany       
|                                       | 
|Centrinity Ltd.                        |  | Ireland       
|                                       | 
|IXOS Software KK                       |  | Japan         
|                                       | 
|IXOS Software SDN BHD                  |  | Malaysia      
|                                       | 
|Open Text Mexico, S. deR.L. de C.V.    |  | Mexico        
|                                       | 
|Corechange BV                          |  | Netherlands   
|                                       | 
|Gauss Interprise BV                    |  | Netherlands   
|                                       | 
|IXOS Netherlands BV                    |  | Netherlands   
|                                       | 
|Open Text International BV             |  | Netherlands   
|                                       | 
|IXOS Software Asia PTE Ltd.            |  | Singapore     
|                                       | 
|Gauss Interprise SL                    |  | Spain         
|                                       | 
|IXOS Technology SL                     |  | Spain         
|                                       | 
|Corechange Svenska AB                  |  | Sweden        
|                                       | 
|Gauss Interprise AB                    |  | Sweden        
|                                       | 
|Mediaflow AB                           |  | Sweden        
|                                       | 
|Open Text AB                           |  | Sweden        
|                                       | 
|Gauss Interprise Schweiz AG            |  | Switzerland   



---

|                                 |  |            
|-------------------------------- |  | -----------
|                                 | 
|IXOS Engineering Switzerland AG  |  | Switzerland
|                                 | 
|IXOS Software International AG   |  | Switzerland
|                                 | 
|Open Text AG                     |  | Switzerland
|                                 | 
|Artesia Technologies, UK Limited |  | UK         
|                                 | 
|Centrinity UK Ltd.               |  | UK         
|                                 | 
|Corechange Ltd.                  |  | UK         
|                                 | 
|Gauss Interprise UK Ltd.         |  | UK         
|                                 | 
|Information Dimensions Limited   |  | UK         
|                                 | 
|IXOS Software Limited            |  | UK         
|                                 | 
|Obtree Technologies UK Ltd.      |  | UK         
|                                 | 
|Open Text UK Ltd.                |  | UK         
|                                 | 
|Artesia Technologies, Inc.       |  | USA        
|                                 | 
|Base4 Corporation                |  | USA        
|                                 | 
|Gauss Interprise Inc.            |  | USA        
|                                 | 
|IXOS Software Inc.               |  | USA        
|                                 | 
|MC2 Learning Systems             |  | USA        
|                                 | 
|Open Text Eloquent Inc.          |  | USA        
|                                 | 
|Open Text Inc.                   |  | USA