NOA chairman Martyn Hart said, "One very high profile deal goes awry and outsourcing is squarely back under the microscope. Outsourcing only arouses interest when it goes wrong."

Hart said, "Of the hundreds of outsourcing deals that make up the Olympics, only one gets a mention [the failed G4S Olympics security contract]. To combat this depredation of our industry and address misunderstandings, the NOA is calling upon the entire outsourcing industry to champion the fact that Outsourcing Works."

Three police authorities in the UK are still considering outsourcing their organisational support services to G4S, for under-supplying security staff for the London Olympics.