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San Francisco, CA


A free, collaborative, multilingual Internet encyclopedia.

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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 collaboration with a network of chapters, 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 perpetuity.

Large organization
A 501(c)(3) nonprofit, EIN 20-0049703


  • User or nonprofit avatar
    Brandon High

    Open culture and knowledge is one of the most precious gifts of the internet and we must fight to preserve it.

  • User or nonprofit avatar
    Cassandra Day

    Wikipedia has empowered me for more than a decade to learn about anything and everything I could possibly think of. Knowledge should be shared!

  • User or nonprofit avatar
    Anita Nankunda

    I appreciate the public service and the knowledge gained using Wikipedia; thank you!

  • User or nonprofit avatar
    Yumi Iwasaki

    I use it all the time to gain basic knowledge about anything. It is such an important resource for everybody.

  • D Bora

    I often use the service, and would like the organization to be well structured, and authenticated.

  • Ujwal Nambiar

    Wikipedia has helped democratize access to global information. Definitely deserves every penny.