Pre Close Trading Statement

Serco Group plc

Pre Close Statement

15 December 2009

Ahead of meetings with analysts prior to its financial year end on 31 December
2009, Serco Group plc (Serco) reconfirms the guidance given in its Interim
Management Statement on 12 November. We remain on track to deliver on our
financial guidance for 2009, and continue to see further potential
opportunities in both existing and new markets. The significant challenges
facing our customers are driving their need to improve the efficiency and
productivity of essential services, which together with our strong
capabilities, gives us confidence in our prospects for the future.

Serco will release its 2009 full year results on 26 February 2010.

Ends

For further information please contact Serco:

Charles King, Head of Investor Relations T [phone]

Dominic Cheetham, Director of Corporate Communications T [phone]

Marcus De Ville, Head of Media Relations T [phone]

About Serco

Serco is a FTSE 100 international service company, which combines commercial
know-how with a deep public service ethos.

We improve essential services by managing people, processes, technology and
assets more effectively. We advise policy makers, design innovative solutions,
integrate systems and - most of all - deliver to the public.

Serco supports governments, agencies and companies who seek a trusted partner
with a solid track record of providing assured service excellence. Our people
offer operational, management and consulting expertise in the aviation, BPO,
defence, education, environmental services, facilities management, health, home
affairs, information and communications technology, knowledge services, local
government, science, transport, welfare to work and the commercial sectors.

More information can be found at www.serco.com

Financial Guidance

Our projections, which we first gave in February 2009, are that our revenue
will increase to approximately £5bn and our Adjusted operating profit margin to
approximately 6.3% by the end of 2012, excluding material acquisitions,
disposals and currency effects.

In 2009, we expect to deliver double-digit revenue growth and a 30bps increase
in our Adjusted PBT margin, excluding SI International. The addition of SI
International is anticipated to increase our 2009 revenue growth by
approximately 10%. Including the benefit of SI International, we expect our
Adjusted operating profit margin of 5.3% in 2008 to increase by approximately
40bps in 2009. This 2009 guidance excludes material currency effects.