The Sustainable Investments Institute (Si2) is a non-profit organization based in Washington, D.C. They conduct impartial research and publish reports on organized efforts to influence corporate behavior on social and environmental issues. Si2 closely follows shareholder resolutions proposed by investor activists, analyzing changing reform campaigns and identifying key points of contention in reports that help investors to make informed, independent decisions about their votes and views on these proposals. They also publish related reports for the public on selected topics.