Notification of Major Shareholding



20July 2011





                                    G4S PLC

                       NOTIFICATION OF MAJOR SHAREHOLDING


The  company was notified  on 19 July 2011 by  BlackRock, Inc that, following an
acquisition  of voting rights, through a chain of controlled undertakings it now
holds  indirectly  voting  rights  in  the  company  through ordinary shares and
through  other  financial  instruments  over  70,679,355 ordinary  shares.  This
amounts to 5.01% of the company's total voting rights.



Peter David
Company Secretary









For further enquiries, please contact:

Helen Parris - Director of Investor Relations                              +44
(0) 1293 554400

Media enquiries:
David Allchurch or John Sunnucks, Tulchan Group+44(0) 0207 353 4200

Notes to Editors:


G4S is the world's leading security solutions group, specialising in outsourcing
of  business processes in sectors where security and safety risks are considered
a  strategic threat.   G4S is  the largest  employer quoted  on the London Stock
Exchange  and has  a secondary  stock exchange  listing in  Copenhagen.  G4S has
operations in more than 120 countries and more than 625,000 employees.  For more
information on G4S, visitwww.g4s.com .






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