Figures obtained through the Freedom of Information Act by the Evening Standard show that so far five electricians, one bricklayer and one plumber have completed the training, casting doubt on the pledge that the Olympics will be able to create a ‘skills legacy'.
Most of the apprentices are not due to complete their courses until several years after the 2012 Games.
The news comes as the level of grants to be provided to construction apprentices are set to be cut by 10%, according to the construction union UCATT.
From August 2010, the level of grant payable over three years to a company training a construction apprentice will be reduced from £9,820 to £9,000.
The decision has been made by Construction the Sectors Skills Council responsible for paying grants to construction companies for apprenticeships and training.
Alan Ritchie, general secretary of UCATT, said: "The decision to reduce the grants for apprenticeships is short-sighted, unnecessary and will harm the industry. Most employers already have to be virtually dragged kicking and screaming to employ apprentices. The cut in apprenticeship grants will give them a further excuse not to employ apprentices."
"The number of apprentices being trained in construction has been falling for decades. The industry currently needs 40,000 new entrants per annum in order to stand still. Prior to the recession the number of apprentices being trained every year was only around 20,000 and numbers have subsequently fallen."
But the Olympic Delivery Authority (ODA) last month made a commitment to an additional 250 apprenticeships is to be created on the Olympic Park and Olympic Village, making a total of 350, partly through the inclusion of a specific requirement to take on apprentices in future contracts. It added that currently 199 apprentices have been recruited onto the project.
