Holding(s) in Company

Serco Group plc

Major Interest in Shares

In accordance with Sections 198 to 202 of the Companies Act 1985, the Company
has today been notified of the following Notifiable Interest, which was
effected on 31 March 2006:

Britannic Investment Managers Limited. 3.0208%

Contact - Francesca Todd - 01256 745900