SERCO GROUP PLC: VOTING RIGHTS AND CAPITAL

In conformity with Rule 5.6.1 of the Financial Services Authority's Disclosure
Rules and Transparency Rules, Serco Group plc (the "Company") is required to
notify the market of the following:

As at 31 May 2010 the Company's issued share capital consisted of 492,786,588
ordinary shares of 2p each with voting rights. The Company holds no shares in
treasury. Therefore the total number of voting rights in the Company as at 31
May 2010 was 492,786,588 (the "Voting Rights Figure").

The Voting Rights Figure may be used by shareholders as the denominator for the
calculations by which they will determine if they are required to notify their
interest in, or a change to their interest in, the Company under the FSA's
Disclosure Rules and Transparency Rules.