Holding(s) in Company

Serco Group plc

Major Interest in Shares

In accordance with Section 198 and 208 of the Companies Act 1985, the Company
has today been notified of the following increased Notifiable Interest, which
was effected on 20 December 2004:

FMR Corp. and its direct and indirect subsidiaries, and Fidelity International
Limited and its direct and indirect subsidiaries. 8.0048%

Contact - Francesca Todd - 01256 745900