The Wikimedia Foundation is a nonprofit organization headquartered in San Francisco that operates the world's largest collection of free-knowledge platforms. Founded in 2003, it maintains the technical infrastructure, servers, and software for Wikipedia and its sister projects - including Wiktionary, Wikibooks, Wikidata, and Wikimedia Commons - collectively hosting over 65 million articles in more than 300 languages and serving approximately 15 billion views monthly.
The Foundation's operations span web infrastructure and server management, multilingual content platforms, and community coordination across a global network of over 265,000 volunteers who contribute to content creation and curation. Its work extends to grantmaking, nonprofit program management, and public policy advocacy aimed at protecting free knowledge access worldwide.
Funding comes primarily through reader donations, and the organization maintains independence from corporate advertising and commercial influence. The Foundation pursues initiatives to close knowledge gaps and support its volunteer community, positioning free access to information as central to its mission.
