Holding(s) in Company

Serco Group plc

Major Interest in Shares

In accordance with Section 198 to 202 of the Companies Act 1985, the Company
has today been notified of the following Notifiable Interest, which was
effected on 23 June 2006:

FMR Corp. and its direct and indirect subsidiaries and Fidelity International
Limited and its direct and indirect subsidiaries. 5.939%

Contact - Tara Cross - 01256 744108