Infrastructure fundraising rose 31% during 2013, reaching $38 billion for the year. According to Preqin, the average fund size raised in 2013 ($872 million) was the highest since 2007.

Elliot Bradbrook the firm's manager of infrastructure data, said there is "significant institutional appetite for infrastructure" and that "fundraising looks set to remain strong in 2014, with many institutions carving out new allocations to infrastructure and a significant number of existing investors looking to increase their exposure."