Pre-Close Trading Update

Pre-Close Trading Update 29 June 2010 Ahead of meetings with analysts prior to its half year end on 30 June 2010, Serco Group plc (Serco) reconfirms the guidance given in its Interim Management Statement on 11 May 2010. We remain on track to deliver our financial guidance for 2010, which is for continued strong organic revenue growth and further progress this year towards our 2012 margin guidance. Our expectation of continued strong performance in 2010 is supported by our high revenue visibility and substantial order book, recent new contract starts, continued expansion of scope and scale in our existing contracts, and a full year contribution from a number of major contracts which started during 2009. Our substantial capabilities and strong track record of high-quality delivery mean that we are well positioned to help our customers around the world address the significant financial and operational challenges they face. The opportunities we see to improve productivity and achieve significant efficiencies for them in the delivery of front-line essential services, across both existing and new markets, continue to give us confidence in our prospects for the future. Ends For further information please contact Serco: Charles King, Head of Investor Relations T +44 (0) 208 334 4122 Dominic Cheetham, Director of Corporate Communications T +44 (0) 208 334 4334 Marcus De Ville, Head of Media Relations T +44 (0) 208 334 4388 2010 Half Year Results and 2009 Segmental Information We will release our 2010 half year results on 25 August 2010. In these results, segmental information will be reported to correspond with the five new divisions we created at the start of 2010. Ahead of this, we are today publishing on www.serco.com segmental income statement information for these five new divisions, for the six months ended 30 June 2009 and the year ended 31 December 2009. 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 are that, by the end of 2012, our revenue will increase to approximately £5bn and our Adjusted operating profit margin to approximately 6.3%, excluding material acquisitions, disposals and currency effects, based on 2008 exchange rates. In 2010, we expect continued strong organic revenue growth and further progress towards our 2012 margin guidance.

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Serco Group (SRP)
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