DonorsTrust is an American nonprofit donor-advised fund (DAF), classified as a 501(c)(3) organization, founded in 1999 and headquartered in Alexandria, Virginia. It was established with the stated mission of safeguarding the intent of libertarian and conservative donors by pooling and distributing charitable contributions exclusively to causes aligned with limited government, free markets, conservative social and traditional values, including climate change skepticism or denial, school choice, opposition to labor unions and economic regulations, opposition to LGBTQ+ rights, and election integrity efforts. By utilizing the DAF structure, DonorsTrust offers high-net-worth individuals, foundations, and corporations an immediate tax deduction while legally shielding their identities from public disclosure, as it is not required to reveal individual donor names. Commonly described by campaign finance watchdogs, journalists, and critics as the 'dark money ATM' or 'dark money facilitator' of the political right and conservative movement, DonorsTrust functions as a vehicle for donors to make anonymous contributions and recommend grants to qualified 501(c)(3) organizations, ensuring funds are never allocated to liberal or progressive causes, even after a benefactor's death. Since inception, it has channeled billions of dollars in cumulative grants to hundreds of conservative, libertarian, and right-of-center think tanks, advocacy groups, legal organizations, educational institutions, and media outlets, with significant growth including over $1 billion in assets by 2022 and annual grantmaking often exceeding $200 million. Major grantees include Project Veritas, ACT for America, the American Freedom Law Center, the Heartland Institute, Americans for Prosperity Foundation, the Heritage Foundation, the Alliance Defending Freedom, the American Legislative Exchange Council (ALEC), the State Policy Network (SPN), and the Federalist Society. The organization operates closely with its sister entity, Donors Capital Fund—a related 501(c)(3) historically designed for accounts exceeding one million dollars—with both sharing leadership and office space. DonorsTrust has faced substantial scrutiny through congressional inquiries, journalistic investigations, and criticism from environmental, labor, and transparency advocates regarding its influence on policy debates, funding networks spreading climate change disinformation, dismantling public sector unions, promoting conservative judicial nominees, and enabling wealthy donors—including the Koch family foundations and network, the Bradley Foundation, the Mercer family, and Leonard Leo's Marble Freedom Trust—to indirectly support controversial and highly partisan initiatives without public accountability. While maintaining a nonpartisan appearance by supporting 501(c)(3) entities, its funding overwhelmingly favors right-leaning causes, drawing criticism for undermining transparency in philanthropy and contributing to broader concerns about erosion of donor anonymity regulations and undue influence in elections and public discourse. Operating within legal bounds with no documented major violations, DonorsTrust remains a key node in right-wing philanthropy.