Wikimedia Foundation

Ensuring free knowledge for future generations

We believe that knowledge is a foundation. It is a foundation for human potential, a foundation for freedom, a foundation for opportunity. Wikipedia is the world’s largest free knowledge ecosystem — a public trust for the common good — built by people, for people.

The Wikimedia Endowment provides dedicated funding to realize the power and promise of Wikipedia and its sister projects — ensuring access to knowledge for everyone, everywhere.

Giving to the Endowment

Your gift helps us preserve, build, and ensure the future of free knowledge for future generations. Join us in creating a lasting legacy for free knowledge and make a gift to the Wikimedia Endowment today.

Gifts for today

A gift for today allows you to donate now to secure the future of Wikipedia and our other free knowledge projects. Help us get started by making a contribution to the Wikimedia Endowment today.

Gifts for tomorrow

Planned giving involves providing a future gift to the Wikimedia Endowment through your financial or estate plans. The Wikimedia Endowment welcomes gifts made through a variety of planned giving arrangements.

Why an Endowment?

Like other public trusts, such as universities and libraries, the Wikimedia Foundation is caretaker of an immense repository of knowledge—and thereby humanity and culture—with the imperative of increasing and ensuring access for all.

The Wikimedia Endowment will conserve and expand the world’s largest free knowledge ecosystem. We strongly believe that the Endowment is not only a necessary safeguard for the millions of articles, media, and resources created by Wikipedia contributors, but also a springboard for innovating the way we curate and deliver knowledge to the world.

Building the Wikimedia Endowment includes long-term strategic planning and investment in the Wikimedia vision, Wikipedia, the Wikimedia Foundation and our volunteers, donors, partners and affiliates around the world. When fully funded, Wikimedia Endowment income will help realize a world in which every single human being can freely share in the sum of all knowledge.

"Wikipedia stands alone in the online world, providing information and knowledge to anyone, anywhere, without cost."
— Annette Campbell-White, Wikimedia Endowment Advisory Board Member

Our projects

Wikipedia was launched in 2001 with a big vision: "Imagine a world in which every single human being can freely share in the sum of all knowledge." Now, with over 40 million articles in almost 300 languages and serving more than a billion unique devices every month, it is the only non-profit site in the top ten most visited on the web.

Wikimedia also supports a range of additional offerings to further enrich the commons, providing vital resources, knowledge and infrastructure.

Select projects supported by the endowment:

A free and open storage for the structured data of all Wikimedia projects including Wikipedia, Wikivoyage, Wikisource, and others

A multilingual repository for free photographs, diagrams, maps, videos, animations, music, sounds, spoken texts, and other free media

The open source package that powers Wikipedia and many other wikis on the web

The world’s largest freely available and openly editable online encyclopedia

A multilingual free content dictionary currently in 170 languages

"The Wikimedia Endowment is a springboard for growth and innovation in how we curate and deliver knowledge to the world for generations to come."
— Jimmy Wales, Wikipedia Founder and Wikimedia Endowment Advisory Board Member

Advisory Board

The Wikimedia Endowment Advisory Board consists of dedicated volunteers from a variety of industries including education, technology, and business. They provide insight and guidance to further the sustainability of the Wikimedia projects through the Wikimedia Endowment.

Our benefactors

We are grateful to our generous benefactors and are proud to list their names below. These gifts ensure that Wikipedia and other Wikimedia projects have support for years to come. This list celebrates those who gave at a very high level, as well as those who have made a legacy gift to the Wikimedia Endowment. Thank you again. We are honored to have you with us.

Have questions about donating to the Wikimedia Endowment or want to learn more about making a legacy gift? Please email us at or call +1 415-757-8574.

Major donors

$5M and above

$1M - $4,999,999

Up to $1M

Legacy gifts

Kaitlin Thaney

Contact us

For more information about the Endowment, contact Kaitlin Thaney or Marc Brent at, or call +1 415-757-8574.