Rathbone Greenbank Investments works with many other organisations and groups committed to ethical investment, or more generally to sustainable development and social justice, through membership, partnership, and sponsorship. These include the following:

Claros

Claros maintains a website which provides a series of articles and information on socially responsible investment for institutional investors, such as pension funds and charities. Mark Mansley, the founder of Claros now works at Rathbone Greenbank Investments.