Blocklisting - Interim Review

BLOCK LISTING SIX MONTHLY RETURN                        

Information provided on this form must be typed or printed electronically and
provided to an ris.

Date: 26 January 2009

Name of applicant:                     Serco Group plc                         
                                                                               
Name of scheme:                        Long Term Incentive Scheme              
                                                                               
Period of return:            From:     20 October 2007 To:    19 April 2008    
                                                                               
Balance of unallotted securities under 281,001                                 
scheme(s) from previous return:                                                
                                                                               
Plus: The amount by which the block    300,000                                 
scheme(s) has been increased since the                                         
date of the last return (if any                                                
increase has been applied for):                                                
                                                                               
Less: Number of securities issued/     169,772                                 
allotted under scheme(s) during period                                         
(see LR3.5.7G):                                                                
                                                                               
Equals: Balance under scheme(s) not    411,229                                 
yet issued/allotted at end of period:                                          

Name of contact:                        Emma Penn                              
                                                                               
Telephone number of contact:            01256 744168                           

                       BLOCK LISTING SIX MONTHLY RETURN                        

Information provided on this form must be typed or printed electronically and
provided to an ris.

Date: 26 January 2009

Name of applicant:                     Serco Group plc                         
                                                                               
Name of scheme:                        Savings Related Share Option Scheme     
                                                                               
Period of return:            From:     20 October 2007 To:    19 April 2008    
                                                                               
Balance of unallotted securities under 70,061                                  
scheme(s) from previous return:                                                
                                                                               
Plus: The amount by which the block    600,000                                 
scheme(s) has been increased since the                                         
date of the last return (if any                                                
increase has been applied for):                                                
                                                                               
Less: Number of securities issued/     623,253                                 
allotted under scheme(s) during period                                         
(see LR3.5.7G):                                                                
                                                                               
Equals: Balance under scheme(s) not    46,808                                  
yet issued/allotted at end of period:                                          

Name of contact:                        Emma Penn                              
                                                                               
Telephone number of contact:            01256 744168                           

                       BLOCK LISTING SIX MONTHLY RETURN                        

Information provided on this form must be typed or printed electronically and
provided to an ris.

Date: 26 January 2009

Name of applicant:                     Serco Group plc                         
                                                                               
Name of scheme:                        Executive Option Plan                   
                                                                               
Period of return:            From:     20 October 2007 To:    19 April 2008    
                                                                               
Balance of unallotted securities under 4,178,855                               
scheme(s) from previous return:                                                
                                                                               
Plus: The amount by which the block    Nil                                     
scheme(s) has been increased since the                                         
date of the last return (if any                                                
increase has been applied for):                                                
                                                                               
Less: Number of securities issued/     303,576                                 
allotted under scheme(s) during period                                         
(see LR3.5.7G):                                                                
                                                                               
Equals: Balance under scheme(s) not    3,875,279                               
yet issued/allotted at end of period:                                          

Name of contact:                        Emma Penn                              
                                                                               
Telephone number of contact:            01256 744168                           

                       BLOCK LISTING SIX MONTHLY RETURN                        

Information provided on this form must be typed or printed electronically and
provided to an ris.

Date: 26 January 2009

Name of applicant:                     Serco Group plc                         
                                                                               
Name of scheme:                        Long Term Incentive Scheme              
                                                                               
Period of return:            From:     20 April 2008   To:    19 October 2008  
                                                                               
Balance of unallotted securities under 411,229                                 
scheme(s) from previous return:                                                
                                                                               
Plus: The amount by which the block    Nil                                     
scheme(s) has been increased since the                                         
date of the last return (if any                                                
increase has been applied for):                                                
                                                                               
Less: Number of securities issued/     348,971                                 
allotted under scheme(s) during period                                         
(see LR3.5.7G):                                                                
                                                                               
Equals: Balance under scheme(s) not    62,258                                  
yet issued/allotted at end of period:                                          

Name of contact:                        Emma Penn                              
                                                                               
Telephone number of contact:            01256 744168                           

                       BLOCK LISTING SIX MONTHLY RETURN                        

Information provided on this form must be typed or printed electronically and
provided to an ris.

Date: 26 January 2009

Name of applicant:                     Serco Group plc                         
                                                                               
Name of scheme:                        Savings Related Share Option Scheme     
                                                                               
Period of return:            From:     20 April 2008   To:    19 October 2008  
                                                                               
Balance of unallotted securities under 46,808                                  
scheme(s) from previous return:                                                
                                                                               
Plus: The amount by which the block    Nil                                     
scheme(s) has been increased since the                                         
date of the last return (if any                                                
increase has been applied for):                                                
                                                                               
Less: Number of securities issued/     11,591                                  
allotted under scheme(s) during period                                         
(see LR3.5.7G):                                                                
                                                                               
Equals: Balance under scheme(s) not    35,217                                  
yet issued/allotted at end of period:                                          

Name of contact:                        Emma Penn                              
                                                                               
Telephone number of contact:            01256 744168                           

                       BLOCK LISTING SIX MONTHLY RETURN                        

Information provided on this form must be typed or printed electronically and
provided to an ris.

Date: 26 January 2009

Name of applicant:                     Serco Group plc                         
                                                                               
Name of scheme:                        Executive Option Plan                   
                                                                               
Period of return:            From:     20 April 2008   To:    19 October 2008  
                                                                               
Balance of unallotted securities under 3,875,279                               
scheme(s) from previous return:                                                
                                                                               
Plus: The amount by which the block    Nil                                     
scheme(s) has been increased since the                                         
date of the last return (if any                                                
increase has been applied for):                                                
                                                                               
Less: Number of securities issued/     438,196                                 
allotted under scheme(s) during period                                         
(see LR3.5.7G):                                                                
                                                                               
Equals: Balance under scheme(s) not    3,437,083                               
yet issued/allotted at end of period:                                          

Name of contact:                        Emma Penn                              
                                                                               
Telephone number of contact:            01256 744168