Wikipedia Foundation

Organization

The non-profit organization that operates Wikipedia, where new NPR CEO Katherine Mah formerly worked.


First Mentioned

10/22/2025, 4:59:34 AM

Last Updated

10/22/2025, 5:05:32 AM

Research Retrieved

10/22/2025, 5:05:32 AM

Summary

The Wikimedia Foundation, Inc. (WMF) is a non-profit organization based in San Francisco, California, that hosts Wikipedia and fourteen other collaborative projects. Established in 2003 by Jimmy Wales, the WMF provides the technical and organizational infrastructure for these projects, which are developed by volunteer editors worldwide. The foundation does not create or curate content; instead, it supports the development of MediaWiki, the software used by these projects. Funding for the WMF primarily comes from small donations from readers and editors, supplemented by grants from philanthropic organizations and tech companies, and more recently, by services income from Wikimedia Enterprise. As of 2023, the foundation employed over 700 staff and contractors, with net assets of $255 million and an endowment exceeding $100 million. Katherine Mah, formerly of the Wikipedia Foundation, is mentioned in the context of her new role as CEO of NPR.

Referenced in 1 Document
Research Data
Extracted Attributes
  • Mission

    To empower and engage people around the world to collect and develop educational content under a free license or in the public domain, and to disseminate it effectively and globally.

  • NTEE Code

    B60 (Adult, Continuing education)

  • Headquarters

    San Francisco, California, United States

  • Projects Hosted

    Wikipedia and fourteen other collaborative projects

  • Founding Location

    St. Petersburg, Florida, United States

  • Organization Type

    Non-profit, 501(c)(3)

  • Software Supported

    MediaWiki

  • Endowment (as of 2023)

    Exceeded $100 million

  • Net Assets (as of 2023)

    $255 million

  • Primary Funding Sources

    Small donations from readers and editors

  • Wikipedia Website Ranking

    Tenth most visited website in the world

  • Additional Funding Sources

    Grants from philanthropic organizations and tech companies, services income from Wikimedia Enterprise

  • Staff and Contractors (as of 2023)

    Over 700

Timeline
  • Established by Jimmy Wales as a non-profit organization to fund Wikipedia and other wiki projects. (Source: Summary)

    2003-XX-XX

  • Incorporated in St. Petersburg, Florida. (Source: Web Search)

    2003-06-20

  • A small fundraising campaign was conducted to ensure server operations. (Source: Web Search)

    2003-10-XX

  • Granted 501(c)(3) status by the U.S. Internal Revenue Code, making donations tax-deductible. (Source: Web Search)

    2005-XX-XX

  • Began receiving services income from Wikimedia Enterprise. (Source: Summary)

    2022-XX-XX

  • Employed over 700 staff and contractors, with net assets of $255 million and an endowment exceeding $100 million. (Source: Summary)

    2023-XX-XX

  • Celebrated 20 years of operation. (Source: Web Search)

    2023-06-20

  • Katherine Mah, a former employee, became the new CEO of NPR. (Source: Related Documents)

    XXXX-XX-XX

Wikimedia Foundation

The Wikimedia Foundation, Inc. (WMF) is an American 501(c)(3) nonprofit organization headquartered in San Francisco, California, and registered there as a charitable foundation. It is the host of Wikipedia, the tenth most visited website in the world. It also hosts fourteen related open collaboration projects, and supports the development of MediaWiki, the wiki software which underpins them all. The foundation was established in 2003 in St. Petersburg, Florida by Jimmy Wales, as a non-profit way to fund Wikipedia and other wiki projects which had previously been hosted by Bomis, Wales' for-profit company. The Wikimedia Foundation provides the technical and organizational infrastructure to enable members of the public to develop wiki-based content in languages across the world. The foundation does not write or curate any of the content on the projects themselves. Instead, this is done by volunteer editors, such as the Wikipedians. However, it does collaborate with a network of individual volunteers and affiliated organizations, such as Wikimedia chapters, thematic organizations, user groups and other partners. The foundation finances itself mainly through millions of small donations from readers and editors, 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. As of 2023, it has employed over 700 staff and contractors, with net assets of $255 million and an endowment which has surpassed $100 million.

Web Search Results
  • Wikimedia Foundation - Wikipedia

    The Wikimedia Foundation, Inc. (WMF) is an American 501(c)(3)(3) "501(c)(3)") nonprofit organization headquartered in San Francisco, California, and registered there as a charitable foundation "Foundation (United States law)"). It is the host of Wikipedia, the tenth most visited website in the world. It also hosts fourteen related open collaboration projects, and supports the development of MediaWiki, the wiki software which underpins them all. The foundation was established in 2003 in St. [...] The Wikimedia Foundation provides the technical and organizational infrastructure to enable members of the public to develop wiki-based content in languages across the world. The foundation does not write or curate any of the content on the projects themselves. Instead, this is done by volunteer editors, such as the Wikipedians. However, it does collaborate with a network of individual volunteers and affiliated organizations, such as Wikimedia chapters, thematic organizations, user groups and [...] The Wikimedia Foundation was incorporated in St. Petersburg, Florida, on June 20, 2003. A small fundraising campaign to keep the servers running was run in October 2003. In 2005, the foundation was granted section 501(c)(3)(3) "501(c)(3)") status by the U.S. Internal Revenue Code as a public charity, making donations to the foundation tax-deductible for U.S. federal income tax purposes. Its National Taxonomy of Exempt Entities (NTEE) code is B60 (Adult, Continuing education).

  • Mission - Wikimedia Meta-Wiki

    The mission of the Wikimedia Foundation is to empower and engage people around the world to collect and develop educational content under a free license or in the public domain, and to disseminate it effectively and globally. [...] In coordination with a network of individual volunteers and our independent movement organizations, including recognized Chapters, Thematic Organizations, User Groups, and Partners, the Foundation provides the essential infrastructure and an organizational framework for the support and development of multilingual wiki projects and other endeavors which serve this mission. The Foundation will make and keep useful information from its projects available on the Internet free of charge, in

  • Resolution:Wikimedia Foundation Guiding Principles

    The Wikimedia Foundation aims to make material in the Wikimedia projects broadly accessible to all. Ensuring continued reliability, availability and responsiveness of all Wikimedia sites and services is our first priority. In prioritizing new products and features, our goal is to impact the largest-possible number of readers and contributors, and to eliminate barriers that could preclude people from accessing or contributing to our projects, such as poor usability and accessibility, lack of [...] The Wikimedia Foundation is deeply rooted in the values of the free culture and free software movements. With the exception of "fair use" material, all information in Wikimedia projects can be freely shared, freely distributed, freely modified and freely used for any purpose, commercial or non-commercial, in perpetuity. [...] The Wikimedia Foundation works in partnership with a global community of volunteers made up of article writers, copy-editors, photographers, administrators, page patrollers, quality assessors, translators, wiki-gnomes, help-desk staffers, developers, bot creators, people who do outreach work and many others. These are the people who build the projects, and they are the Wikimedia Foundation's partners in developing the platform. This community selects Board members who oversee the Wikimedia

  • Wikipedia:Purpose

    | | | | --- | “ | The mission of the Wikimedia Foundation is to empower and engage people around the world to collect and develop educational content under a free license or in the public domain, and to disseminate it effectively and globally. | ” | | — Wikimedia Foundation | ## Wikipedia's content [edit] Content is governed by three principal core content policies – neutral point of view, verifiability, and no original research. [...] ## External links [edit] | External videos | | Jimmy Wales: The birth of Wikipedia, 2005 TED (conference), 20 mins. | What is Wikipedia? – The Wikimedia Foundation. Mission statement – The Wikimedia Foundation. Statement of Purpose – Wikimedia Foundation Bylaws Article II . Foundation Guiding Principles – The Wikimedia Foundation. Wikimedia founding principles – Principles generally supported by all of the Wikimedia communities. | v t e Basic information on Wikipedia - (Search) |

  • 20 years of the nonprofit behind Wikipedia - Wikimedia Foundation

    Over the last twenty years, the Wikimedia Foundation has grown to support the needs of volunteers and readers around the world, and this blog merely scratches the surface of everything we’ve accomplished. Still, our core mission of bringing the sum of all knowledge to all people has never wavered, and it never will. [...] We are the Wikimedia Foundation. In our work, we support not only Wikipedia but a dozen sister projects and the hundreds of thousands of volunteer editors who edit, expand, and curate them. Together with a number of affiliate organizations, we form the Wikimedia movement, unified by a single mission: a world in which every single person on this planet can access, participate, and share in the sum of all knowledge. [...] “We work alongside communities of volunteers around the world to enable the creation and sharing of free knowledge,” said Maryana Iskander, CEO of the Wikimedia Foundation. “This global movement continues to keep reliable information available online at a time when it is critically needed more than ever.” Today, the Wikimedia Foundation supports and celebrates open knowledge, and the volunteers who make it possible, in a variety of ways.