SOURCE is a joint global initiative from Multilateral Development Banks (MDBs), in response to the G20, for addressing the global infrastructure gap and advancing the United Nations sustainable development agenda, by delivering on well-prepared projects.

SOURCE is an advanced online platform, which allows for aggregating and processing information on all dimensions of project preparation, with the aim of improving infrastructure project bankability, quality and delivery; increasing investment and crowding-in private finance; and in strengthening the technical capacity and ability of the public sector to manage risks.

Sustainable Infrastructure Foundation (SIF), is a not-for-profit Swiss foundation headquartered in Geneva that coordinates the operational provision of SOURCE. SIF is mandated by its Advisory Board, to: a) Manage the development of SOURCE, b) Provide capacity building to SOURCE users, c) Conduct the adoption of SOURCE by governments, public agencies and international organisations.