Open Philanthropy (previously the Open Philanthropy Project) is a research and grantmaking foundation based in San Francisco.

History

Open Philanthropy launched in late 2011, as a partnership between Good Ventures and GiveWell.^[1] The partnership operated under the name GiveWell Labs before adopting, in August 2014, the name Open Philanthropy Project.^[2] It continued to be part of GiveWell until 2017, when it became an independent organization.^[3] The name was changed to Open Philanthropy around December 2019.