Wikimedia Foundation

Address: 1 Montgomery Street, Suite 1600, San Francisco, California 94104, USA


Stakeholder group: NGOs and associations

The Wikimedia Foundation, Inc. is an American nonprofit organization headquartered in San Francisco, California, and registered there as a charitable foundation. It is the host of Wikipedia, the seventh most visited website in the world. In addition, the foundation hosts 14 other related content projects. It supports the development of MediaWiki, the wiki software that underpins them all..

The Wikimedia Foundation was established in 2003 in St. Petersburg, Florida by Jimmy Wales, as a nonprofit way to fund Wikipedia, Wiktionary, and other crowdsourced wiki projects. The Foundation finances itself mainly through millions of small donations from Wikipedia readers, collected through email campaigns and annual fundraising banners placed on Wikipedia and its sister projects. These are complemented by grants from philanthropic organizations and tech companies, and starting in 2022, by services income from Wikimedia Enterprise..