Annual Information Update

Serco Group plc - Annual Information Update

In accordance with the requirements of Prospectus Rule 5.2, the following
summarises the information which has been published or made available to the
public by Serco Group plc (the "Company" or "Serco Group plc") over the
previous 12 months up to and including 27 April 2011.

This annual information update is required by and is being made pursuant to
Article 10 of the Prospectus Directive as implemented in the United Kingdom
(Prospectus Rule 5.2) and not for any other purpose and neither Serco Group
plc, nor any other person, takes any responsibility for, or makes any
representation, express or implied, as to the accuracy or completeness of the
information which it contains. This information is not necessarily up to date
as at the date of this annual information update and Serco Group plc does not
undertake any obligation to update any such information in the future. This
annual information update does not constitute an offer of any securities
addressed to any person and should not be relied upon by any person.

 1. Announcements made via a RIS
   
The documents listed below were published via a Regulatory Information Service
on or around the dates indicated.

Date            Description of Contents of Announcement                      
                                                                             
30-Apr-2010     Annual Information Update                                    
                                                                             
04-May-2010     Total Voting Rights                                          
                                                                             
11-May-2010     Result of AGM                                                
                                                                             
11-May-2010     Interim Management Statement                                 
                                                                             
12-May-2010     Director/PDMR Shareholding                                   
                                                                             
13-May-2010     Director/PDMR Shareholding                                   
                                                                             
13-May-2010     Re Contract                                                  
                                                                             
24-May-2010     Director/PDMR Shareholding                                   
                                                                             
27-May-2010     Holding(s) in Company                                        
                                                                             
27-May-2010     Director/PDMR Shareholding                                   
                                                                             
09-Jun-2010     Total Voting Rights                                          
                                                                             
29-Jun-2010     Pre-Close Trading Update                                     
                                                                             
01-Jul-2010     Blocklisting - Interim Review                                
                                                                             
01-Jul-2010     Total Voting Rights                                          
                                                                             
01-Jul-2010     Blocklisting - Interim Review                                
                                                                             
01-Jul-2010     Total Voting Rights                                          
                                                                             
02-Jul-2010     Additional Listing                                           
                                                                             
05-Jul-2010     Re Contract                                                  
                                                                             
02-Aug-2010     Total Voting Rights                                          
                                                                             
12-Aug-2010     Re Contract                                                  
                                                                             
25-Aug-2010     Director/PDMR Shareholding                                   
                                                                             
25-Aug-2010     Half-yearly Report                                           
                                                                             
01-Sep-2010     Total Voting Rights                                          
                                                                             
16-Sep-2010     Directorate Change                                           
                                                                             
17-Sep-2010     Re Contract                                                  
                                                                             
21-Sep-2010     Re Contract                                                  
                                                                             
22-Sep-2010     Holding(s) in Company                                        
                                                                             
01-Oct-2010     Total Voting Rights                                          
                                                                             
01-Oct-2010     Total Voting Rights                                          
                                                                             
01-Nov-2010     Total Voting Rights                                          
                                                                             
09-Nov-2010     Sandwell Environmental Services Contract                     
                                                                             
12-Nov-2010     Serco signs MoU with UK Government                           
                                                                             
15-Nov-2010     Interim Management Statement                                 
                                                                             
17-Nov-2010     Holding(s) in Company                                        
                                                                             
24-Nov-2010     Hertfordshire Contract                                       
                                                                             
01-Dec-2010     Total Voting Rights                                          
                                                                             
14-Dec-2010     Preferred Bidder on New Zealand Prison Contract              
                                                                             
16-Dec-2010     Pre-close Trading Update                                     
                                                                             
22-Dec-2010     Directorate Change                                           
                                                                             
05-Jan-2011     Total Voting Rights                                          
                                                                             
10-Jan-2011     Additional Listing                                           
                                                                             
19-Jan-2011     Blocklisting - Interim Review                                
                                                                             
24-Jan-2011     Statement re Media Speculation                               
                                                                             
26-Jan-2011     Directorate Change                                           
                                                                             
01-Feb-2011     Total Voting Rights                                          
                                                                             
01-Feb-2011     Serco signs Prison Contract in New Zealand                   
                                                                             
14-Feb-2011     Director Declaration                                         
                                                                             
18-Feb-2011     Holding(s) in Company                                        
                                                                             
23-Feb-2011     Holding(s) in Company                                        
                                                                             
01-Mar-2011     Total Voting Rights                                          
                                                                             
02-Mar-2011     Final Results                                                
                                                                             
04-Mar-2011     Director/PDMR Shareholding                                   
                                                                             
09-Mar-2011     Director/PDMR Shareholding                                   
                                                                             
15-Mar-2011     Serco Acquires The Listening Company                         
                                                                             
16-Mar-2011     Contract                                                     
                                                                             
28-Mar-2011     Directorate Change                                           
                                                                             
29-Mar-2011     Annual Financial Report                                      
                                                                             
31-Mar-2011     Doncaster Prison Contract                                    
                                                                             
01-Apr-2011     Preferred Bidder for Work Programme contracts                
                                                                             
01-Apr-2011     Total Voting Rights                                          
                                                                             
04-Apr-2011     Director/PDMR Shareholding                                   
                                                                             
26-Apr-2011     Director/PDMR Shareholding                                   

All of the above documents are available for download on the Prices and News
section of the London Stock Exchange website, www.londonstockexchange.com, or
on the Company's website, www.serco.com.

 2. Documents filed at Companies House
   
The Company has submitted filings to Companies House in relation to the Annual
Report, AGM resolutions and new Articles of Association, the annual return, the
allotment of shares and the appointment and termination of directors. Copies of
these documents can be found via the Companies House website at 
www.companieshouse.gov.uk or if you are a registered user, through Companies
House Direct at www.direct.companieshouse.gov.uk. Alternatively copies can be
obtained from Companies House, Crown Way, Cardiff CF14 3UZ.

 3. Documents provided to shareholders and the FSA
   
The documents below were sent to shareholders on or around the dates indicated.

Date            Document                                                     
                                                                             
25-Aug-10       Half Year Results Letter 2010                                
                                                                             
29-Mar-11       Annual Report and Accounts 2010                              
                                                                             
29-Mar-11       Notice of the 2011 Annual General Meeting                    
                                                                             
29-Mar-11       Proxy form for the 2011 Annual General Meeting               

Copies of the above documents were filed with the Financial Services Authority
during the 12 month period and available to be viewed via the National Storage
Mechanism, www.hemscott.com/nsm.do.

Copies of the above documents can be obtained from the Company Secretary, Serco
Group plc, Serco House, 16 Bartley Wood Business Park, Bartley Way, Hook,
Hampshire RG27 9UY.

 4. Further Information
   
Further information about the Company can be found at our website, 
www.serco.com