The United Nations-supported Principles for Responsible Investment (PRI) initiative is a network of international investors working together to put the six Principles for Responsible Investment into practice. The PRI were devised by the investment community and reflect the view that environmental, social and governance (ESG) issues can affect the performance of investment portfolios and therefore must be given appropriate consideration by investors if they are to fulfill their fiduciary (or equivalent) duty. In implementing the Principles, signatories contribute to the development of a more sustainable global financial system.

Launched in 2006 by UNEP Finance Initiative and the UN Global Compact, the PRI provide a voluntary framework by which all investors can incorporate ESG issues into their decision-making and ownership practices and so better align their objectives with those of society at large. Over 1,500 investment institutions have become signatories, with approximately US$ 62 trillion assets under management.