Knowledge Is Human –
Together, We Secure Its Future

As misinformation on the internet spreads faster than ever before, Wikipedia stands in contrast — a people-powered beacon of reliable knowledge, curated by millions of volunteers from all over the world. The Wikimedia Endowment safeguards the people’s knowledge, ensuring that Wikipedia remains an accurate and growing source of information for generations to come.

About

The World’s Knowledge
In The People’s Hands

At a time when information on the internet is often manipulated and trust in institutions is eroding, Wikipedia’s role in the world has never been more important. The Atlantic called Wikipedia “the last bastion of our shared reality.” In 2025, the United Nations named Wikipedia a digital public good. More importantly, Wikipedia is trusted by people all over the world.

It’s fair to wonder: at a time when trust in institutions is evaporating, how has Wikipedia managed to continue gaining people’s trust?

We’ve done it by vesting our power in the people. Millions of volunteer editors around the world have poured knowledge into over 65 million Wikipedia articles in over 300 languages. They are the collectors, archivists, and defenders of the sum of all human knowledge.

Founded in 2016, the Wikimedia Endowment is the permanent steward of this collective achievement. Every month, more than 1.5 billion people turn to Wikipedia to understand the world around them. We support initiatives to innovate and strengthen the technology behind Wikipedia, ensuring that humanity’s knowledge remains reliable, neutral, and accessible to all — now and for generations to come.

“We’ve reached a fragile point in the history of human knowledge. We’ve waded into a new era that begs the question: Who will hold the knowledge? Who will have the power? That choice still belongs to us — the people.”

Lisa Seitz Gruwell

President of the Wikimedia Endowment

How the Endowment Works

The Wikimedia Endowment is a permanent fund that safeguards Wikipedia’s future.  Gifts are invested, and the earnings offer steady support year after year, ensuring the world’s largest human-curated knowledge resource endures and adapts as technology evolves. It provides lasting financial stability while investing in bold, forward-looking projects that expand and transform how the world shares human knowledge. By combining financial sustainability with investments that drive innovation, the Endowment fulfills its promise for the future: ensuring Wikipedia remains strong, resilient, and continues to thrive for generations to come.

  • An Independent Endowment

    The Wikimedia Foundation’s annual fund powers Wikipedia’s day-to-day operations, such as building and maintaining web servers, staff, and volunteer support. The Wikimedia Endowment is a separate and independent U.S.-based 501(c)(3) nonprofit charitable organization. Gifts to the Endowment secure tomorrow, creating a fund that grows and protects Wikipedia for the long term. Together, they fuel the present and guarantee the future of the world’s most trusted source of knowledge.

Reports and Transparency

The Wikimedia Endowment is built on trust — your trust. We are proud to share clear, accountable reports that demonstrate how your support is carefully managed to safeguard human knowledge for generations.

IMPACT

Innovating the Technology
Behind Wikipedia

The Wikimedia Endowment funds initiatives that drive the technical innovation of Wikipedia to ensure that it continues to grow and evolve for people everywhere. These investments matter because knowledge is human. Behind every article are volunteers who curate, check, and defend knowledge.

Wikipedia By The Numbers

  • 15b +

    monthly views, making it one of the most-visited sources of knowledge in human history.

  • 65m +

    articles offered by Wikipedia every day worldwide.

  • 350 +

    languages for which Wikipedias have been created, ensuring knowledge is accessible to people everywhere.

  • 260k +

    monthly volunteer editors worldwide — contributing content, collaboratively creating, defending, and maintaining the sum of all human knowledge.

Thank You To
Our Benefactors

Benefactors are extraordinary supporters whose generosity strengthens the Endowment and sustains Wikipedia for people everywhere. We are honored to recognize these donors for securing the future of the world’s most trusted source of human knowledge. Thank you for your commitment and for standing with us to protect and sustain Wikipedia for generations to come.

  • $5million+
    • Amazon
    • Arcadia
    • Wikipedia readers and supporters
  • $2million+
    • Google.org
    • Musk Foundation
    • George Soros
  • $1million+
    • Craig Newmark Philanthropies
    • Facebook
    • King Baudouin Foundation
    • Jim Pacha
    • Dr. David S. Starr Estate
  • $100k+
    • Alan Bauer
    • Vivek Basrur
    • Antoine Bello
    • Annette Campbell-White
    • Dalio Philanthropies
    • Alex & Patricia Farman-Farmaian
    • Gupta Family Foundation
    • I.W. Foundation
    • Pitch and Cathie Johnson
    • Richard Jay Seidel and Caren Kaplan
    • Ike and Ellen Kier
    • Ellen Koshland
    • Nth Degree Scholarship Fund
    • Estate of Karl Pfenninger
    • Estate of John Robert Phillips
    • Julia Rausing Trust
    • Sigrid Rausing Trust
  • $50k+
    • Estate of Evan C. Bacon
    • Karel Bujok
    • Melbern G. and Susanne M. Glasscock Foundation
    • Holly Gray
    • In honor of Hank and Demaris Hudspeth
    • Moneta Asset Management
    • The Rothschild Foundation
    • Christopher Seiwald
    • Silverleaf Foundation (Mayree Clark)
  • $15k+
    • The Aber D. Unger Foundation
    • Cynthia C. Wainwright and Stephen Berger
    • Kevin Bonebrake and Winnie Scheuer
    • Samuel Bowen
    • Michael Brown
    • Charlton Burch
    • In Honor of Annette Campbell-White
    • David Carter
    • Emily and Sam Glick
    • Spencer Glendon and Lisa Tung
    • Robert Griesemer
    • Marie Griffin and Robert Coffey
    • Frans P. Guepin
    • Steven Hamburger
    • Mark Jacobson and Ilona Frieden
    • Khandros-Bloch Family
    • The Kipping Family
    • Jeremy Levine & Yael Taqqu
    • Victor Linck
    • Gregory and Kathy Nelson
    • The O'Brien Family, New Jersey
    • Manish Pandya
    • Tim and Mary Riordan
    • Doug Standing
    • The Stephen Craig Moore Living Trust
    • Diana Strassmann and Jeffery Smisek
    • Paul von Kuster
    • Bonnie J. Tisch and Daniel R. Tisch
    • K.L. Won
  • $5k+
    • John Gallup
    • Glenn Anders
    • Paula Begoun
    • The Behemoth
    • William Benter
    • Steven and Sandra Berglund
    • Will Bloch
    • Barry Boehm
    • The Bommadevara family (Vedant, Maaya, Vamseeja & Nagendra)
    • Chris and Jennifer Brahm
    • Burton Family Foundation
    • Romelle Castle
    • Elmira Choopani & Khanh Vu
    • Juan Cockburn
    • In honor of David Colander
    • Guy and Helen Connolly
    • Helen Darling
    • Paul Demmitt
    • John Dove
    • Peter Emch
    • In honor of Alex Farman-Farmaian
    • Kevin Kelly and Germaine Fuh-Kelly
    • Geisel Family Foundation
    • Laurie and Thomas Fusco
    • Edwin A. Goodman
    • Kiwan Gu
    • In memory of Nan Harris from her family
    • Janet and Richard Hart
    • Helen Ingham Foundation
    • Jack Hetherington
    • Ernest Hildner
    • Sue Hollingsworth
    • Howard Gilman Foundation
    • Huebner Waller Family Fund
    • In memory of our parents, Richard and Priscilla Hunt
    • Brian Jaffe
    • Kent Janér
    • Celia Johnson
    • Christine & Jordan Kaplan
    • In memory of H. Kwan
    • Jerry LeClaire
    • Leo Liu, MD
    • Meraj Mana
    • Sydney McDole and Naresh Lakhanpal
    • Michael Merwin
    • Carol Fryer and Bernard Moret
    • John Nagle
    • In memory of Don & Joyce Neufeld
    • Estate of Orville Michael Baggett
    • Barbara Perreault
    • Lynda & Stewart Resnick
    • Madeleine Richard
    • Sarah Rouse
    • Barbara Ryan
    • Nathan and Nancy Sambul
    • In memory of Salomon (Monis) Samuelides
    • Scott Satterwhite
    • Rogil Schroeter
    • In honor of Gay Sharman
    • Edward and Elaine Shoben
    • The Sigler Family
    • Bill Spindler
    • Albert & Candace Staton
    • Frank and Cheryl Stearn
    • Jon Thaler
    • Fred Thorlin
    • Jack Triplett
    • Konstantin Vinogradov
    • Milan Votava
    • Mickey Weinstein
    • Steven Dee Yeutter
  • $1k+
    • Pat and Bob Nixon
    • Ebrahim Ahmadi, M.D.
    • Feras Alhou
    • Lawanda Allee
    • Paul B. Anderson
    • Anonymous M
    • Anyone Can Whistle Foundation of Los Angeles
    • Kathleen and Jack Applewhite
    • Edward and Sallie Arens
    • Alden, Alison and Ansel Ashby
    • Michael Ashby and Nancy Till
    • Ken and Valerie Baker
    • Ellen Balaguer and Mark Chase
    • R & A Bandela
    • Steven Barnes
    • Dan Batson
    • Daniel Baulig
    • Charles and Jennifer Beeler
    • Heather Bendler
    • In memory of Peter Bial
    • Audrey and Gary Billerbeck
    • Paul Black
    • Brent Blumenstein and Anne Ryan
    • Adam Bly
    • Edward Boehme
    • Roger and Helen Bohl
    • Artem Bolgar
    • Eleanor, Lauren and Tyler Brandt
    • Joseph Brandt
    • In memory of Roger Edward Broughton
    • Kathy and Charley Brown
    • Patrick Brown
    • Mary F. Burns
    • Craig Campbell
    • Gary Campbell
    • Raul Carmenate
    • Ken and Kyra Carson
    • The Carter Family
    • Carol Causey
    • Vint Cerf
    • Niranjan and Savita Chandragiri
    • Christian Channell
    • Sarah Charlton
    • Anjan Chatterjee
    • Saul and Nan Chase
    • Marg Chauvin
    • Crystal Chen
    • Joseph Chen
    • Karl Chen
    • Liang Chen
    • Paulina and Eric Cheung Hall, Esq.
    • Michael and Maureen Chowen
    • Irene Clardy
    • Frank O. Clark, Ph.D.
    • In memory of Principal Joe Clark, who appreciated the value of knowledge and education
    • Mary Cody
    • Louis Cohen
    • Jeremy Coller
    • Luke Comer
    • Linda D Cooley
    • Lenore C Cooney
    • Stone Coxhead
    • In memory of Edward Coyle
    • Meg Coyle
    • Michael Danahy, Ph. D.
    • Austin Daily
    • H. Andrew Decker
    • Mary Liz DeJong
    • Michaela Depatie
    • Douglas Derrer
    • L Peter Deutsch
    • Andrew Dick
    • A Sibbald Doan
    • James Docauer
    • In memory of Dr. Paul Leighton Donoho
    • Ronald Doyle
    • Greg Durrett
    • Douglas Durst
    • David and Casey Eichenberger
    • Otho Eskin
    • The Eubanks Memorial Trust
    • James Fallon
    • Mark Farley
    • Peter Farrell
    • Anita and John Fiorillo
    • In memory of Günter Fleig
    • Margaret Flickinger
    • Will Forrest
    • Susan Leigh Foster
    • Andrew Fraser
    • In memory of Johnnie Ruth Friedman
    • Paul Funk
    • Jennifer V. Furman
    • Charles J. Gallant
    • Charles Garrett
    • Douglas Gatchell
    • Marilyn Gatin
    • John and Melanie Geleynse
    • Elizabeth and Robert Geltz
    • Safar Ghazal
    • Giancarlo Pallavicini Onlus Humanitarian and Cultural Foundation
    • Mary E. Glidden and Paul Francoeur in memory of Yves Francoeur
    • Jeff and Kelly Glisch
    • Thomas Goddard
    • Jack Goodman
    • P. Goetze
    • Loretta Montanari Gottshall
    • James and the late Connie Gossett
    • Alan Gould
    • Terence E. Gray
    • In loving memory of Norman G. Greenberg
    • Lisa Seitz Gruwell
    • Mary Beth Guard
    • Adrienne Kent Gunst
    • David and Carolyn Hahn, Wisconsin
    • Kathryn Hall
    • Mark Halperin
    • Jeannene Hansen
    • Chalmers Hardenbergh
    • In memory of Rosebud Smith Haywood
    • Thomas Hazlehurst, M.D.
    • Wenshan (Susan) He
    • Mary and Paul Henry
    • In memory of Professor Dr. Walter Higbee
    • Matthew Hill
    • Christopher Hinton
    • Tran Ho
    • Charles Hogan
    • Hanna W. Hopp
    • Celia and Daniel Huber
    • Philippe Ifrah
    • In honor of Zach Intrater and Marc Agnifilo
    • Rex Jaeschke
    • Martin Jansche
    • Peter and Linda Jeschofnig
    • Robert Johnson
    • Eric Jones and Daniel Monasterio
    • Douglas W. Jones
    • Jay Jones
    • In memory of Dr. James L. Julian
    • In memory of James Ralph Justus, Jr.
    • Gary Kahn
    • In honor of APJ Abdul Kalam, former president of India
    • Elaine Kant
    • Alice Kaplan
    • Catherine Kayser
    • Emily and Zak Keir
    • Peter Kelsey
    • Jack Kessler
    • Prakhar, Prerak, Akta, and Pravin Khandelwal
    • John Kiely
    • Kim and Jesse Kinder
    • Don King
    • Robert King
    • Sam King
    • Brendan Kirby, P.E.
    • Evgeny Kissin
    • Nora Klein
    • Eric Klusman
    • Paul Kostenuik
    • Richard Paul Krafsur
    • Krebs on Security
    • Kurt Kufeld
    • Kishor Kulkarni
    • Joshua Kwan and Angeline Protacio
    • Sally Lawrence and David Lai
    • Amanda Lao
    • In memory of Robert E. Lasky
    • Linda Lee
    • Richard Lenon and Leslie Hsu
    • Lai-Yet Lam and Peter Lew
    • Lisa Lewin
    • Russ Lewis
    • Gregg and Libby Lindahl
    • Girts Linde
    • Ken Lipper
    • Christopher Lingle
    • Chelcie Liu
    • Kevin Lloyd
    • Robert Lonergan
    • John Longres
    • Riley MacPhee and Julie Pedtke
    • In memory of my sister Madeleine
    • Victor Mair
    • Gary Marcus
    • Alexis Martinsen
    • The Isaac and Enedina Hernandez Martinez Cabrera Family and the Angelo A. and Flora Pagana Nardi Family for their pursuit and devotion to Learning and education
    • John Marx
    • Barbara K Matheson
    • Linda and Richard Maxson
    • Heather and Peter McHugh
    • Rajalaxmi McKenna
    • Karen Meckstroth
    • Member & Volunteer instructor for the OLLI program
    • Gilbert Miller
    • Minassian Media
    • Maureen and Gary Meller
    • Leta Miller
    • Patricia and Charles Mintz
    • Deb Morrison
    • Jeff Morrow
    • Judith Morton
    • Mary G. Murray
    • Jasmine Nabi
    • Anil Nair
    • Robert Neale
    • In memory of John C. Nelson
    • Alan Nies
    • George Nikopoulos
    • Becky Norquist
    • Og & Ogina
    • Leon Older
    • Ray Olszewski
    • Robert Ordal
    • Miriam and Robert Owens
    • Andrew Pace
    • Trey Parker
    • John Parkinson
    • Mary Patterson
    • Steve Pittman
    • Jim Polisano
    • Jonathan Pool
    • Daniel and Gail Powell
    • Susan Pritzker
    • Borden Putnam
    • R&S Cohen Foundation
    • Donald Radina
    • Sarah Reade
    • Anne Reece
    • Paul Resch
    • The Rex Flash Ministries
    • Maximilien Reynolds
    • In memory of Charles Rich, Ph.D.
    • Lorraine and Gary Roberts
    • Diana Rogers
    • Carol Rose
    • Dennis Rossman
    • Terry Rossow
    • Philip and Reggie Roy
    • In memory of Frank Rust
    • Rana Sadik and Samer Younis
    • David Sassen
    • Anthony John Savory
    • Charles Schade
    • Paul Scharf
    • The Schmajoros Giving Fund
    • Andrew Schorr
    • Stephen K. Schuck, on behalf of those who prefer facts to wishful thinking
    • Ann Schumacher
    • Donald Schwab
    • Curtis Scribner
    • Scrum.org
    • Rich Seifert
    • R. Jeff Serne
    • H Rodney Sharp III
    • Rasha Shehada
    • Bradford Sherburne
    • Michael Shimoide
    • Clay Shirky
    • David Smith
    • Martin Smith
    • Steve Solomon in Josh’s memory — He loved to learn.
    • Mike Speciner
    • Sports Reference LLC
    • Frederick Stanton
    • John Stares
    • Betty Ann Stedman
    • Timothy Steinert
    • Elizabeth Story
    • Phil Straus
    • StrongAuth Inc.
    • Marcus F. Stuart
    • Rich & Bonnie Sutton
    • Melissa & Karl Sweitzer
    • The Tarpenning-Schillinger Family Fund
    • Virginia & Robert Taylor
    • In memory of Emma Elizabeth (Larsen) Teeter
    • Adam Theriault-Shay.
    • Rabbi Rob & Lauren Thomas
    • In loving memory of Dolly Marguerite Thompson
    • Jack Thompson
    • Jean and Roger Thompson
    • Michael Thonis
    • Kelly Townsend
    • Christopher Transue
    • Kit Transue
    • Natalie and Bobby Tulsiani
    • James Uttley
    • Erik Vaaler
    • Jos van Schagen and Marjon Floris
    • Amélie & Kunal Verma
    • Nicolas Veron
    • Caitlin Virtue
    • Charlotte von der Hude
    • In memory of Robert Henry Walpole
    • Rich Warner
    • Richard Warner
    • Beverly and Darrell Weaver
    • Doron Weber
    • Matthew Weiner
    • Mike Weiss
    • The West-Heidel Family Fund
    • Patti White
    • Albert Whittlesey
    • Peter Wiley
    • David E. Wilkins
    • Matt Williams
    • Robert Williamson
    • Willowridge Partners/Jerrold Newman
    • In honor of Suzie T. Windward
    • The Wolff Family
    • Adam Wolff
    • Eugene Yarovoi
    • Tim and Cc Yu
  • Wikipedia Legacy Society
    • Mark Ahn
    • Jessica A. Allen
    • Chance Amelsberg
    • Lakeisha Angel
    • Seth M. Asser, MD
    • Estate of Evan C. Bacon
    • Estate of Orville Michael Baggett
    • Brandon D. Barton
    • Oliver Beattie
    • Linda L. Bertiaux
    • Sean and Cinthya Bertoni
    • Jean Bilala
    • Caiden Block
    • Joshua Aron Bloomfield
    • Nan Borton
    • Fernando Botello
    • James Brennan
    • Jason W. Britton
    • Aaron Paul Brock
    • Daniel Burton
    • Mendell Calabia
    • Douglas Calder
    • Annette Campbell-White
    • Matthew Carlson
    • Edward Noel Castro
    • Kattie Chesser
    • Stephanie Chrismer
    • Sarah Cline
    • Julie Ann Coffey
    • Melinda Cogen
    • Peter Compo
    • Scott Conley
    • Douglas Christopher Dantini
    • Kandis-Dene Foundation
    • Raj Dhubba
    • Marlene Dial
    • Bruno Laan de Oliveira Dias
    • Bobbi Divine
    • David Donald
    • Gail Ewart
    • Dr. William Fusfield
    • Dr. Kathy Joy Townley
    • Thomas E.
    • Traci Fix
    • Thomas Flaherty
    • MaryAnn Gardner
    • Samantha Geesling
    • Alyssa Louise Gentry
    • Lisa Gilbert
    • Sean Christopher Howard Beam Glasgow MD-PhD
    • John Alexander Gomez
    • Sumaltha and Sreenivas Gudavalli
    • Kathryn Guggenheim, M.D.
    • Erik Hanson
    • Emil Hanzevack and Theresa Long
    • Jamie Elizabeth Harrison
    • Jason Hatfield
    • Anita Hayes
    • George W. Haywood Jr., USMC
    • Morgan A. Heien
    • Guillermo Herrera
    • Shannon Hickey-Flores
    • Nathan Hoover
    • Leslie Hunt
    • Robert M. Hust
    • Ivan Igulo
    • Nigel Allenby Jaffé
    • Mark Jacobson and Ilona Frieden
    • Barbara Kelso
    • Stephen Kenny
    • Rich Kerr
    • The Knowlton Shelnut Family Endowment
    • Karel Marriott Kramer
    • Bill Kutik
    • David E. LaBarge
    • Oscar Alexander Lakowicz
    • Steve Larsen
    • S.M. Lemkowitz
    • Zachary Jon Lemons
    • Leonard M. Levie
    • Jacob Levine
    • Jonathan E. Lewanda
    • Gloria Y. Lopez-Hicks
    • Andy Lowery
    • Tyrell Mann-Sanford
    • Jasmine Macias
    • Steve Manes
    • Justin Martin
    • Patrice J. Martin
    • Maribel Matos
    • Laura Mattox
    • Carolyn May
    • Eileen E. McCauley
    • James McDow
    • Christian Melchor
    • Heather Marie Mercer
    • Katrina Milan
    • Aaron & Rebecca Milestone
    • Mrs. Ann Jean Millikan, Daughter of Prof. Louis B Kahn
    • Kaska Miskolczi
    • Pete Misner
    • Marilyn A. Moffitt
    • Edgar M. Moran, MD
    • Cathy Muste
    • Christopher Myers
    • Priscilla S. Naizghi
    • Chris Fowler O’Connor
    • Tyler O’Neill
    • Colm O’Toole
    • Melissa Pacetti
    • Jim Pacha
    • Chris Parker
    • Bradford A. Patrick
    • Courtney J. Pavlovich
    • Bar Perry
    • Estate of Karl Pfenninger
    • Estate of John Robert Phillips
    • James Pinder
    • Mark Purves
    • Brad Reel
    • Stacey Reeves
    • Rikki and Guy Rehn
    • Angie Rozar
    • Michael Ray Russell
    • Tony Rutherford
    • Cece Cettina Sambataro
    • Anthony John Savory
    • Elliott Schuchardt
    • Brian Schulman
    • Laura Sebastian Hundley
    • Richard Jay Seidel and Caren Kaplan
    • Jerard Shannon
    • Richard Sheets
    • Donna Simmons
    • Aaron Simons
    • Matthew L. Stegall
    • Eren Alexander Steinhersch
    • Alf Stegmeyer
    • Luke A. Stovall
    • Duke Joshua Stow-Moulden
    • Carson Sullivan
    • Kristina M. Sutton
    • Susan Thaddies
    • Joolie Thordarson
    • Võ Thị Thuỳ
    • Scott Timm
    • Jennifer Kelly Trantanella
    • Rick Ulrich and Julia Busch
    • Kevin Valenta
    • Rev. Nathan and Betty Wadewitz
    • Jim Warhol
    • Roger Watts
    • Latanya Webster
    • Leigh Westin
    • Robert Earl Whitworth
    • Elizabeth Windsor
    • Donald Winslow
    • Todd Helicopter Wood
    • Steven Dee Yeutter
    • Scott Zajac

LEADERSHIP

Safeguarding
The People's Knowledge

The Wikimedia Endowment board provides vision and stewardship — ensuring the fund grows responsibly and supports Wikipedia for generations to come.

Board of Directors

Staff

Contact

Get In Touch

We’d love to hear from you. Whether you have questions about our programs, want to explore partnership opportunities, or need assistance with giving, our team is here to help.

General information
For more information about the Wikimedia Endowment, please contact us by email.

Planned giving
For information on how you can support the Endowment with a planned gift, please contact us by email or by phone.

Useful Information

  • Main Office Address

    Wikimedia Endowment
    1 Sansome Street, Suite 1895, San Francisco, CA 94104, United States

  • Address for Mailing Checks

    Wikimedia Endowment, PO Box 96887, Washington, DC 20077-9830

  • Tax ID number

    87-3024488