GMO is an investment management firm operating across a range of asset classes around the world. All GMO's investment teams apply a long-term, valuation-based investment philosophy. GMO believe environmental, social and governance factors can have a meaningful impact on the long-term success of companies and countries.

A 2018 report on worldwide investments in harmful cluster munitions. Two arms manufacturers recently ended production of cluster munitions, and more financial institutions and states are acting to end money going to producers. Despite declining investment from financial institutions, there are seven companies in the report still manufacturing.

The Climate Bonds Initiative is an international organisation working to mobilise the bond market for the financing of climate change solutions. They promote and help develop the market by providing reports on green bonds, conducting surveys, construct investment opportunities, develop a trusted standard, as well as delivering policy models and advice.