The Turner Foundation is a grantmaking nonprofit associated with the family of billionaire media executive Ted Turner. The Foundation primarily supports environmental conservation efforts, but also contributes to left-of-center environmental advocacy groups. Among the Foundation’s initial goals was “developing practices and policies to curb population growth rates,” a long-running

The Society of Environmental Journalists (SEJ) is an association of journalists who cover environmental issues for mainstream and left-of-center activist media outlets. It has been criticized for aligning with environmentalist viewpoints and policy goals.

People for the Ethical Treatment of Animals (PETA, sometimes styled PeTA) is one of the world’s largest, most aggressive, and most controversial animal liberation groups. The group has become notorious for aggressive campaigns against any and all human use of animals, even as it is dogged by allegations of hypocrisy

As You Sow is a left-of-center advocacy organization that engages in shareholder action to force companies to adopt various left-of-center positions and practices known by the euphemism “corporate social responsibility.” The organization buys shares in the companies to force the companies to change their positions on issues through shareholder advocacy.

The William and Flora Hewlett Foundation (also known as the Hewlett Foundation) is a private foundation established in 1966 by Hewlett-Packard co-founder William R. Hewlett, his wife Flora, and his son Walter.

The Union of Concerned Scientists (UCS) is a Cambridge, Massachusetts-based activist group that uses science policy and climate change to advocate for left-of-center policies. As an activist organization, UCS began in the late 1960s with opposition to the Vietnam War and U.S. nuclear weapons testing, later coming to oppose peaceful

The Mangrove Foundation is a subsidiary of the Atlantic Philanthropies, a private foundation created in 1982 by Irish-American businessman Chuck Feeney. The Atlantic Philanthropies focuses its giving on health, social, and politically left-of-center public policy causes in Australia, Bermuda, Ireland, South Africa, the United States, and Vietnam. A philanthropic

Restaurant Opportunities Centers United (ROC or ROC-United) is one of the nation’s most prominent “worker centers,” labor-union-like organizations backed by union organizing know-how and left-of-center foundation funding. An outgrowth of a mutual-aid organization for the surviving unionized employees of the Windows on the World restaurant destroyed in the September 11th

The Pew Charitable Trusts is a public charity formed in 2003 from the merger of seven foundations created by the Pew family, which made its money in the oil business.  It operates the Pew Research Center as a subsidiary. Originally founded as the family foundation of conservative- and Republican-leaning

The New Venture Fund (NVF) is a 501(c)(3) funding and fiscal sponsorship nonprofit that makes grants to left-of-center advocacy and organizing projects and provides incubation serves for other left-of-center organizations. The fund focuses primarily on social and environmental change, issuing grants for a variety of projects that include conservation, global

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

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

The Sixteen Thirty Fund (sometimes styled “1630 Fund”) is a left-of-center lobbying and advocacy organization founded in 2008. 615 Sixteen Thirty Fund often operates alongside its charitable “sister” nonprofit New Venture Fund, which

The John D. and Catherine T. MacArthur Foundation (also known as the MacArthur Foundation) was the twelfth largest foundation in the United States in 2014 with total assets over $6 billion.

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.”

The Ford Foundation was, for much of its history, the largest foundation in the United States, though it has been passed in recent years. As of December 2014, it possessed assets of $12.5 billion.844  The

The Bill, Hillary, and Chelsea Clinton Foundation (also known as the Clinton Foundation and originally named the William J. Clinton Presidential Foundation) is a global philanthropic organization created and run by former President Bill Clinton, former Secretary of State Hillary Clinton, and their daughter, liberal pundit Chelsea