Figures from KPMG show that the total value of a combined government infrastructure and construction pipeline is now £502.3bn, up from £463.4bn in March.
60 per cent of that funding is due to be spent by 2020.
The total is dominated by funding for energy, transport and utilities, which represent 84 per cent of the pipeline in total, with energy representing the biggest spend at £206bn.
The increase is largely backed by increased spending on housing, regeneration and communications, with the later focused on the government's Digital Economy agenda.
KPMG's UK head of infrastructure, building and construction Richard Threlfall said: “Our analysis confirms that there has been a significant increase in the value of that pipeline, and that energy and transport remain the biggest sectors and hence provide the best opportunities in the UK market.