The 2024 Infrastructure Investor Debt ranking is based on the amount of direct infrastructure debt investment capital raised by firms between 1 January 2018 and 31 August 2023.

Where two firms have raised the same amount of capital over this time period, the higher II Debt ranking rank goes to the firm with the largest active pool of capital raised since 2017 (ie, the biggest single fund). If there is still a ‘tie’ after taking into account the size of a single fund, we give greater weight to the firm that has raised the most capital within the past one or two years.

We give highest priority to information that we receive from or confirm with the infrastructure managers themselves. When firms confirm details, we seek to ‘trust but verify’. Some details simply cannot be verified by us, and in these cases we defer to the honour system. In order to encourage co-operation from infrastructure firms that might make the II Debt ranking, we do not disclose which firms have aided us on background and which have not. Lacking confirmation of details from the firms themselves, we seek to corroborate information using firms’ websites, press releases, limited partner disclosures, etc.