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Wikimedia Foundation

Imagine a world in which every single human being can freely share in the sum of all knowledge.

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Overview

We are the nonprofit organization that operates Wikipedia and the other Wikimedia free knowledge projects. Wikipedia holds more than 67 million articles in over 300 languages and receives nearly 15 billion views each month. It is the only website among the ten most visited that is hosted by a nonprofit organization.

We host a technology infrastructure that makes possible billions of monthly visits to Wikipedia. Since 2003, we have supported the hundreds of thousands of volunteer editors who edit, expand, and curate the Wikimedia projects. We equip these volunteers with the most up-to-date tools, ensure connections to Wikipedia are fast, safe, and private, and develop new technology and products to meet the demands of our readers and editors. The Wikimedia Foundation has no editorial role on Wikipedia; volunteers make content decisions under a neutral point of view policy, and a Universal Code of Conduct sets shared standards for their discussions.

We provide individuals and organizations around the world with funding to increase the knowledge on Wikipedia. We also undertake legal and advocacy efforts to protect people’s right to free knowledge.

We are a charitable, not-for-profit organization that relies on donations. We receive donations from millions of individuals around the world, with an average donation of about $11. We also receive donations through institutional grants and gifts. We are a United States 501(c)(3) tax-exempt organization with offices in San Francisco, California. Wikipedia does not rely on advertising, subscription fees or the sale of users' personal data. The organization publishes a transparency report twice a year, has its financial statements audited annually by an independent firm, and holds the Platinum Seal of Transparency from Candid and a four-star rating from Charity Navigator.

Funding rounds

Disclosed funding: $15.9M across 7 rounds. Latest: Grant, 1 Jan 2020.

DateTypeAmount
1 Jan 2020Grant$2.1M
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Office locations

Latest videos from Wikimedia Foundation on YouTube

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  • As the saying goes, dress for the job you want, not for the job you have.
  • Be honest, do you feel like Wikipedia is a bouba or a kiki?
  • "You Can See Everything" on A24's new film. For everything else, there's Wikipedia.
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Recent posts from the Wikimedia Foundation blog

Wikimedia Foundation FAQ

As of 2026-10-19, Wikimedia Foundation has 890 employees, based on the Enrich Layer count of person profiles that list Wikimedia Foundation as their current employer. Its listed company size band is 501 to 1,000.
As of 2026-10-19, Wikimedia Foundation is headquartered in San Francisco, CA, US.
Wikimedia Foundation was founded in 2003.
As of 2026-10-19, Wikimedia Foundation is classified in the Software Development industry.
We are the nonprofit organization that operates Wikipedia and the other Wikimedia free knowledge projects.
As of 2026-10-19, Wikimedia Foundation's official website is https://wikimediafoundation.org/.