The Wikimedia Foundation is a donor-funded, US 501(c)(3) nonprofit organization established in the United States under the US IRS Code Section 501(c)(3). Our tax ID number is 20-0049703. Here, you can read our financial reports and our Form 990s.
Audited by KPMG
Audited by Gregory, Sharer & Stuart
As a nonprofit, Wikipedia and our related free knowledge projects are powered primarily through donations.
Subscribe to news about ongoing projects and initiatives.
Questions about the Wikimedia Foundation or our projects? Get in touch with our team.
Art+Feminism Wikipedia edit-a-thon
CC BY-SA 3.0