The Wikimedia Foundation is the nonprofit powering one of the world's most visited websites by providing the infrastructure, legal support, and resources that keep knowledge free and accessible to everyone. Our staff work across technology, partnerships, policy, communications, and more to support a global movement of editors and contributors who help expand what the world knows. The community sets the direction of each project. Our role is to amplify and sustain them. Learn who we are ➡️ https://lnkd.in/dNnDaTF5
Wikimedia Foundation
Software Development
San Francisco, CA 109,975 followers
Imagine a world in which every single human being can freely share in the sum of all knowledge.
About us
We are the nonprofit organization that operates Wikipedia and the other Wikimedia free knowledge projects. 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. 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.
- Website
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https://wikimediafoundation.org
External link for Wikimedia Foundation
- Industry
- Software Development
- Company size
- 501-1,000 employees
- Headquarters
- San Francisco, CA
- Type
- Nonprofit
- Founded
- 2003
- Specialties
- Non-Profit, Free knowledge, Internet, Technology, Mobile, Open Source, Education, and Wikipedia
Locations
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Primary
Get directions
1 Sansome St. Suite 1895
San Francisco, CA 94104, US
Employees at Wikimedia Foundation
Updates
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On 14 May 2004, Wikipedia featured its first "Picture of the Day". The image showed the Virgin River Narrows in Zion National Park (US). At the time, Wikipedia was still largely text-focused. Adding a featured image to the main page was part of a broader shift toward making knowledge not just readable, but also visual. Since then, "Picture of the Day" has become a regular feature, highlighting images from Wikimedia Commons that are freely licensed and widely reusable. Check out the Picture of the Day archive ➡️ https://w.wiki/8KrC #Wikipedia25
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Wikimedia Foundation reposted this
📢 The Digital Public Goods Alliance is excited to welcome the Wikimedia Foundation as its newest member! After Wikipedia and Wikidata were officially recognised as digital public goods in 2025, the Wikimedia Foundation now joins the DPGA to help strengthen and advance the global DPG ecosystem. Through its membership, the organisation will support investments in Wikimedia Cloud Services and continue advocating for open knowledge infrastructure, open-source first approaches, public interest AI, information integrity, and inclusive digital participation worldwide. 🎉 As Wikipedia approaches its 25th anniversary, this milestone further reinforces the importance of protecting and sustaining community led DPGs that serve the public interest. 🔗 Learn more in our recent blog and explore the roadmap: https://lnkd.in/dPV36-uT
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The Wikimedia Foundation is celebrating a new milestone in its mission to champion open knowledge 🎉 The nonprofit organization joined the Digital Public Goods Alliance (DPGA), an initiative endorsed by the United Nations that promotes the discovery, development, and use of digital public goods (DPGs) such as open-source software, dataset, AI models, and content. As Wikipedia celebrates its 25th birthday, the membership reaffirms the Wikimedia Foundation’s commitment to open knowledge as a public good, ensuring it remains accessible, rights-based, and governed in the public interest. In 2025, Wikipedia and Wikidata, two Wikimedia projects, were officially recognized as digital public goods by the DPGA. The acknowledgment showcased the important role that volunteers play in building a better internet that serves the public interest. Learn more about the DPGA and the Foundation’s commitment ➡️ https://lnkd.in/dBXCWGNi
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Wikipedia is one of the most visited websites in the world. That's why it's been designed for how people actually read today: on their phones and tablets. The Wikipedia app turns a familiar resource into a more intuitive, mobile-first experience. Download the Wikipedia app (iOS) ➡️ https://lnkd.in/dx_UxpyS Download the Wikipedia app (Android) ➡️ https://lnkd.in/dFyHaC9X
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Over the past decade, University of California, Berkeley professor Juana María Rodríguez has led a project with her students to expand LGBTQ+ representation on Wikipedia through a partnership with Wiki Education, focusing on queer history. Along the way, students have edited hundreds of articles, created dozens more, and contributed work that has reached tens of millions of readers. Each article follows Wikipedia’s standards: neutral tone, verifiable sources, and clear citations. Students compile annotated bibliographies and rely on high-quality research to support their contributions. See how the record is being rewritten ➡️ https://lnkd.in/e74snfRA
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When global attention focuses on a single topic, millions of people often turn to Wikipedia to understand it. One year ago today, the Wikipedia article about newly-elected Pope Leo XIV received over 7.5 million views in a single day. It became the most visited Wikipedia article in a single day that was not directly tied to the subject’s death. #Wikipedia25
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Wikipedia is made possible thanks to a global community of volunteers: editors, photographers, translators, developers, organizers, donors, and more. They contribute in over 300 languages, across every time zone, on every subject humans have thought to write about. The Wikimedia Foundation exists to support that community: to keep the infrastructure running, to protect the mission, and to make sure the knowledge those volunteers build stays free and accessible to every person on Earth. Meet our community ➡️ https://lnkd.in/gmyk-qDE
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Transparency is a cornerstone of the Wikimedia movement. While the volunteer editors handle the majority of content moderation requests, twice a year, the Wikimedia Foundation publishes a Transparency Report documenting the requests we receive to alter or remove content from our projects. The report features charts and graphs showing where requests came from and which projects were targeted, along with selected case stories and an FAQ that adds helpful context. Together, these efforts aim to clarify the nature of these requests and how the Foundation handles them. We hope this report deepens understanding of threats to free knowledge and the work being done to protect it. Read the July-December 2025 report ➡️ https://lnkd.in/dRxaxg72
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"Free" on the internet means more than you might think. On Wikimedia projects, free content goes beyond price. It means content that anyone can use, share, and even modify, as long as they follow defined terms. This usually involves licenses like Creative Commons, which allow reuse with conditions such as giving credit to the original creator or sharing new versions under the same terms. Learn how "free" actually works ➡️ https://w.wiki/3rhJ
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