Americans Against Double Taxation (AADT) was a front group for local government interest groups, government worker labor unions, and other interest groups that opposed the restricting the state and local tax deduction, better known as the SALT deduction, in the Tax Cuts and Jobs Act of 2017. It was unsuccessful

The International City/County Management Association (ICMA) is a leadership and management organization for municipal and local government civil servants around the world. 31 ICMA promotes the “council-manager” governance approach for cities and counties.

The Houston Endowment was founded in 1937 by Jesse H. Jones and Mary Gibbs Jones as an extension of their personal philanthropy. The organization gives grants to organization throughout the greater Houston area. 66 Today, the endowment

The Alliance for Climate Education (ACE), also known as Action for Climate Emergency Inc., is a left-of-center environmentalist education and activist group focused on educating low-income urban high schoolers about climate change activism.

Darren Walker is as of 2025 the outgoing president of the Ford Foundation, one of the largest left-leaning grantmaking foundations in the United States.

Ralph Nader is an American environmentalist and consumers’-interests activist and left-of-center politician. Though he affiliates with neither major party, his views are generally considered left-wing and he focuses on promoting anti-free-market regulations. Nader became a household name in the 1960s with Unsafe at Any Speed, his investigative report on the

Black Youth Project 100 (BYP 100) is a advocacy group focused on black, queer, and feminist youth issues. It advocates for the abolition of the police and prison systems, the payment of “slavery reparations,” universal child care, guaranteed employment from the federal government, and other radical-left policies.

The Democracy and Power Fund is a now-defunct project of the Open Society Foundations (OSF), a private grantmaking foundation created in 1993 and funded by billionaire financier and liberal philanthropist George Soros.

Demand Justice is a left-of-center advocacy group created in early 2018 that aims to shift the political leanings of America’s courts to the left by supporting the appointment of liberal judicial nominees and opposing right-of-center nominees. The organization acts primarily through media campaigns concerning nominated and unconfirmed judicial nominees.

Elon Musk is a South African-born American technology entrepreneur, investor, and philanthropist best known for his role as a founder or co-founder of several high-profile technology firms. Since January 2025, he has worked in the second Trump administration as a White House advisor and as the de facto head

Chloe Cockburn was the previous criminal justice program officer at Open Philanthropy, a grantmaking foundation funded and managed by Facebook co-founder Dustin Moskovitz and his wife Cari Tuna. She is also the director and a board member of the Bia-Echo Foundation, and the creator of the

The Open Philanthropy Action Fund (OPAF) is the political arm of Open Philanthropy, a grantmaking foundation that gives to left-of-center organizations advocating criminal justice policy. Open Philanthropy began as a project of GiveWell and Good Ventures , the later being the private grantmaking foundation of Facebook co-founder

Meta, formerly doing business as Facebook, is a social media and networking service based in Menlo Park, California. Along with chairman and CEO Mark Zuckerberg, Facebook’s co-founders include Andrew McCullum, Dustin Moskovitz, Chris Hughes, and Eduardo Saverin. The company is considered part of the “Big Four” technology firms which include 

Ragtag is a group of left-of-center programmers and lawyers who volunteer to provide technical development and support for left-wing groups. As of 2018, the group has over 600 volunteers. 466 Ragtag is structured as a nonprofit LLC.

Way to Win is an organizational strategy hub for left-leaning organizations that helps identify key elections that the Democratic Party needs to win in order to gain control of various legislative bodies. Way to Win then directs the efforts of other left-leaning donors and organizations towards those key campaigns. Since

The National Democratic Redistricting Committee (NDRC) is a Democratic Party PAC (political action committee) conceived in late 2016 by political operatives in the Democratic Party and the Obama administration, including President Barack Obama and former Attorney General Eric Holder. It officially launched on January 12, 2017.

FCCP is a “fiscally sponsored” project. For more information about FCCP’s parent group, see NEO Philanthropy (Nonprofit) The Funders Committee for Civic Participation (FCCP) is a donors’ affinity group for left-wing voter engagement advocacy that steers millions of dollars from left-wing funding entities to left-of-center nonprofits that use the

The Poynter Institute for Media Studies is a nonprofit journalism institution located in St. Petersburg, Florida that owns and controls Times Publishing Company, which publishes the Tampa Bay Times and previously published Congressional Quarterly. Poynter operates the controversial left-of-center PolitiFact fact-checking organization, which was launched by its subsidiary St. Petersburg Times in 2007.

Also see Democracy Fund (Non-profit) Democracy Fund Voice is a left-of-center electoral advocacy group within the philanthropy network of eBay chairman and founder Pierre Omidyar. 675 The group

Citizens Climate Education (CCE) is an environmentalist advocacy organization affiliated with the lobbying group Citizens’ Climate Lobby (CCL). CCE promotes a carbon tax scheme as its primary solution to climate change, which it refers to as a “carbon fee and dividend.”