Additional Listing

Fidessa group plc (the "Company") - Blocklisting of Shares

A blocklisting application has been made for 1,000,000 Ordinary Shares of 10p each to the Official List of the UK Listing Authority and to trading on the London Stock Exchange. The shares will be issued fully paid and will rank pari passu in all respects with the existing issued ordinary shares of the Company.

These shares will be issued under rules of the Fidessa group plc Exceptional Growth Rate Incentive Plan 2006, the Company Share Option Plan 2006 and the Company Performance Related Share Plan 1997.