Tech minnow Buddi wins criminal tagging contract The four - Buddi, Capita, Astrium and O2"s owner Telefonica - will replace G4S and Serco, who withdrew from the tendering process after an investigation found they had been over-charging. The exact value to Buddi is not known, but Capita said its own part was worth £400m over six years. Ms Murray, who before Buddi was one of the founders of the company which became confused.com, said: "It's great to see the government awarding contracts like this to British manufactures and we are absolutely delighted. Obviously this is a significant win for the company and we now look forward to working with the MoJ to deliver on this contract. Buddi's shareholders include Odey Asset Management, which owns a 20pc stake. As well as the tagging system, Buddi operates a system which can monitor the whereabouts of the elderly and infirm.