The deal sees Deloitte become the official professional services supporter of the games with the right, from January 2009, to use the London 2012 marks, as well as the right to Team GB and Paralympics GB.
LOCOG Chief Executive Paul Deighton said: 'I'm thrilled to welcome Deloitte to the Olympic family. This is an exciting and innovative deal, with Deloitte supporting us not only with cash, which is essential as we raise the £2 billion of private finance we need to host and stage the Games in 2012, but will also provide us with expert people".
London 2012 currently has three Tier One partners, paying in at least £40 million - Lloyds TSB, the official banking and insurance partner, EDF Energy, the official utility services partner, and Adidas, the official sportswear partner - with a further two expected to be signed by March.
