The Ploughshares Fund is an anti-nuclear proliferation organization pooling and directing donations from wealthy individuals and philanthropies. It is reportedly “the largest grant-making foundation in the United States focusing exclusively on peace and security issues.”

The Energy Foundation, also known as the United States Energy Foundation, is a left-of-center “pass through” charitable foundation founded by and supported by a network of left-wing organizations. The Foundation began in January 1991 as a $20 million collaborative between the Pew Charitable Trusts, Rockefeller family foundations, and

The Center on Budget and Policy Priorities (CBPP) was formed in 1981 to analyze federal budget issues, focusing largely on how budget decisions affect Americans with low incomes. The group pursues “federal and state policies designed both to reduce poverty and inequality and to restore fiscal responsibility in equitable and

The Analyst Institute works with left-of-center organizations and campaigns across the U.S. to help them measure the impact of their programs and increase their reach. The Institute has run experimental tests for hundreds of such groups.

Also see Tides Nexus The Tides Foundation is a major center-left grantmaking organization and a major pass-through funder to numerous left-leaning nonprofits. The San Francisco, California-based 501(c)(3) nonprofit was founded in 1976 by Drummond Pike, a professional political activist who has since retired from the organization, to funnel

George Soros is a Hungarian-born American investor, author, left-of-center political donor, and philanthropist. Outside of his political giving and advocacy, he is best known for a set of currency trades that earned him the moniker “the man who broke the Bank of England.”

Also see Committee on States (Other Group) and Democracy Alliance Conferences (Other Group) The Democracy Alliance is a collective of left-of-center donors that has been active in orchestrating “the activities of a permanent ‘left infrastructure’” since 2004.