Who were the biggest infrastructure investors in 2015?

<p><span style="color: rgb(51, 51, 51); font-family: Arial, Helvetica, sans-serif; font-size: 13px;">Welcome to our sixth Infrastructure Investor 30 ranking of the world's largest infrastructure investors.</span></p> <br style="color: rgb(51, 51, 51); font-family: Arial, Helvetica, sans-serif; font-size: 13px;" /><font face="Arial, Helvetica, sans-serif" style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-family: Arial, Helvetica, sans-serif; font-size: 13px; list-style: none; color: rgb(51, 51, 51); background-image: none; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;">Despite global uncertainty – political and economic – fundraising appeared to be going strong, with the first half of this year slightly ahead of the same period in 2014. Some of the fund closings that boosted first-half results were also responsible for upward moves in the ranking as well as opening the door to newcomers.</font><br style="color: rgb(51, 51, 51); font-family: Arial, Helvetica, sans-serif; font-size: 13px;" /><br style="color: rgb(51, 51, 51); font-family: Arial, Helvetica, sans-serif; font-size: 13px;" /><font face="Arial, Helvetica, sans-serif" style="margin: 0px; padding: 0px; border: 0px; outline: 0px; font-family: Arial, Helvetica, sans-serif; font-size: 13px; list-style: none; color: rgb(51, 51, 51); background-image: none; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;">Once again Australian fund manager Macquarie held steady at number one, with total capital raised in the five-year period standing at $28.85 billion, only slightly higher than the previous year’s total of $27.35 billion. Login or register to view the entire ranking. <br /></font>