London 2012 Olympics: G4S interviewing 84,000 candidates The FTSE 100 security group is looking to hire around 10,000 temporary workers, with 2,500 already in place, to provide security at the Olympic Park in London during the Games this week. The contract is worth around £200m to G4S, which will need to vet and train all the workers before London 2012. Nick Buckles, chief executive, said: "This is a very large undertaking. It's a tough challenge but we have a strong management team in place. The Olympic contract will boost organic revenue growth for G4S by 2pc to 3pc this year. In a trading update yesterday, Mr Buckles said G4S had grown revenues by 6.7pc in the first quarter of 2012 aided by the Olympics and 11pc growth in developing markets. However, despite the revenue growth, profits for G4S will only be at "similar levels" to 2011. This is because margins have shrank due to spending cuts in the US and as G4S has won new UK contracts, such as providing security for Royal Bank of Scotland branches, with higher initial costs. Mr Buckles said he was "pleased" with the company's increase in revenues and said margins should improve in the second half of the year. He added: "Based on recent contract awards, outsourcing trends and the group's bid pipeline, the organic growth rate is expected to continue to improve during 2012." Shares in G4S rose 9.2 to 276p.