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WIKIMEDIA FOUNDATION INC

CA · EIN 200049703 · $167.9M rev · operational · infrastructure · www.wikimediafoundation.org
profile

The Wikimedia Foundation is the nonprofit organization that hosts Wikipedia and its sister sites, supporting the global volunteer community that creates and maintains free, reliable knowledge in over 300 languages. It funds the technology, policies, and programs necessary to ensure open access to information worldwide. The organization operates globally and is primarily funded by public donations.

activities · 12

what they do

direct service · 2
  • Hosts and maintains Wikimedia projects Free Knowledge Platform Infrastructure
    Hosts and maintains 14 free knowledge projects, including Wikipedia and Wikidata, by managing servers, developing software, and designing supporting technology, enabling billions of monthly visits and hosting over 65 million articles in more than 300 languages.
  • Hosts and maintains free knowledge projects Free Knowledge Platform Infrastructure
    Hosts and maintains 14 free knowledge projects including Wikipedia and Wikidata by managing servers, developing software, and designing supporting technology, enabling billions of monthly visits and hosting over 65 million articles in more than 300 languages.
advocacy · 3
  • Conducts legal and policy advocacy for free knowledge
    Engages in legal and advocacy efforts globally to protect the right to free knowledge, including defending access to information and digital rights.
  • Produces transparency reports Annual Impact & Transparency Reporting
    Produces and publishes transparency reports twice annually, detailing government and third-party requests for information and actions taken, with reports published for multiple periods including 2012–2014, 2024, and 2025.
  • Produces transparency reports and conducts legal advocacy Annual Impact & Transparency Reporting
    Conducts legal and advocacy efforts to protect the right to free knowledge and publishes biannual transparency reports detailing requests for information and actions taken, with reports published for multiple periods including 2012–2014, 2024, and 2025.
capacity building · 7
  • Leads collaborative knowledge equity initiatives
    Co-founded and organizes major collaborative initiatives such as the Women in Red project, which added over 200,000 biographies of women, and the first African Librarians Week, resulting in nearly 28,000 Wikipedia improvements.
  • Leads collaborative knowledge equity initiatives
    Co-founded the Women in Red project, which has added over 200,000 biographies about women to English Wikipedia, and organized the first African Librarians Week, resulting in nearly 28,000 improvements on Wikipedia.
  • Manages internal operations and organizational oversight Financial Reporting & Compliance Management
    Oversees departments, internal teams, and staff within the Wikimedia Foundation and files annual financial reports and Form 990s as a US 501(c)(3) nonprofit, with annual reports highlighting financial accountability.
  • Manages internal organizational operations Financial Reporting & Compliance Management
    Oversees internal departments, teams, and staff within the Wikimedia Foundation, including compliance with U.S. nonprofit requirements such as filing annual financial reports and Form 990s.
  • Provides grants and capacity-building support to the Wikimedia community Free Knowledge Platform Infrastructure
    Provides funding and capacity-building support globally through grants totaling over $9 million to individuals, affiliates, and nonprofit organizations for editathons, outreach, events, and conferences, and supports a global community of over 265,000 contributors across 170 countries.
  • Provides grants and funding to expand knowledge Free Knowledge Platform Infrastructure
    Provides funding to individuals, affiliates, and nonprofit organizations globally to support editathons, outreach, events, and conferences, having awarded over $9 million in grants.
  • Supports global volunteer contributor community Free Knowledge Platform Infrastructure
    Supports a global network of hundreds of thousands of volunteer editors—averaging nearly 265,000 contributors per month across 170 countries—since 2003, through infrastructure, tools, and community initiatives.
strategies · 15

how they think

Theories of action extracted from this org's own source material. Click any to see the full field of orgs running the same approach.

named programs · 8

what they call their work

Grants Program
Provides funding to individuals and organizations contributing to Wikimedia projects globally
Open the Knowledge Journalism Awards
Program supporting journalists in Africa who use Wikimedia projects to share knowledge with the public.
Wiki Loves Earth
Annual photography competition encouraging contributors to document natural heritage sites worldwide.
Wikidata
Free and open knowledge base that stores structured data for use across all Wikimedia projects
Wikimedia Commons
Repository of free media files used across Wikimedia projects and by the public
Wikimedia Enterprise
Service offering reliable, high-volume access to Wikimedia content for commercial and nonprofit organizations
Wikipedia
Free online encyclopedia edited and maintained by volunteers, providing reliable information in over 300 languages
Women in Red
Initiative to increase the representation of women on Wikipedia by creating biographies of notable women.
relationships · 11

who they work with

  • Biodiversity Heritage Library Partner — Partners with Wikimedia to expand access to biodiversity knowledge.
  • Candid Government — Awarded the Wikimedia Foundation the Platinum Seal of Transparency.
  • Charity Navigator Government — Awarded the Wikimedia Foundation its highest rating of four stars.
  • Google Partner — Collaborates with Wikimedia to close systemic gaps in global understanding of science, culture, language, and identity.
  • ICFJ Partner — Co-sponsors the Open the Knowledge Journalism Awards in Africa for stories that expand knowledge about Africa on Wikipedia.
  • ICFJ Partner — Collaborates on the Open the Knowledge Journalism Awards.
  • International Center for Journalists (ICFJ) Partner — Collaborates with ICFJ on the Open the Knowledge Journalism Awards in Africa.
  • KPMG Government — Audits the Wikimedia Foundation's annual financial statements.
  • The Wikipedia Library Partner — Partners with top publishers to connect them with Wikipedia editors, improving access to reliable sources.
  • UNESCO Partner — Collaborates with Wikimedia to advance knowledge sharing, as seen in joint initiatives such as the 2023 Wikimedia Movement event in Singapore.
  • Wikimedia Commons Network — Hosts and provides files used in Wikimedia Foundation materials.