Additional Listing

Embargoed release: 13:00hrs                                          6 May 2005

                                  SOPHEON PLC                                  

                              Additional Listing                               

Sopheon plc announces that it has issued 2,500 ordinary shares in connection
with the exercise of options, at an exercise price of 14.75p, by a former
employee. Application has been made for the new ordinary shares to be admitted
to trading on AIM and dealings are expected to commence on 11 May 2005.

For further information contact:

Barry Mence, Chairman    Sopheon plc                 Tel : + 44 (0) 1483 685   
                                                     735                       
Arif Karimjee, CFO                                                             
                                                                               
Adam Reynolds            Hansard Communications      Tel : + 44 (0) 207 245    
                                                     1100                      
Andrew Tan                                           + 44 (0) 7957 203 685     
                                                                               
Floor van Maaren         Citigate First Financial    Tel : + 31 (0) 205 754 010