Notice of Results

Embargoed Release: 11:00hrs 24 August 2005

                                  SOPHEON PLC                                  

                                  ('Sopheon')                                  

                               NOTICE OF RESULTS                               

Sopheon plc, the international provider of solutions that improve the return
from innovation and product development, announces that it intends to release
its interim 2005 results on 1 September 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

About Sopheon

Sopheon (LSE:SPE) is an international provider of software and services that
help organizations improve the business impact of product development. The
Sopheon Accolade® product development system automates gate- or phase-based
product development (PD) processes and provides strategic decision support that
allows companies to improve innovation, cut product development spending waste
and shorten time to market. Sopheon is listed on the AIM market of the London
Stock Exchange and on the Euronext in the Netherlands. For more information,
please visit www.sopheon.com.