Wikimedia Foundation Inc
Wikimedia Foundation Inc is a public charity based in San Francisco, California. Formed in 2003, it operates Wikipedia and other Wikimedia projects and supports the infrastructure, communities, and organizations that advance free knowledge.
Wikimedia Foundation Inc at a glance
In short: Wikimedia Foundation Inc gave $4.4M across 18 grants in 2025 (avg $246K), mostly in California. 22% of 2025 grantees were new. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $4,423,356
- +22.8% vs 2024
- Grants made (2025)
- 18
- +12.5% vs 2024
- Average grant
- $245,742
- +9.2% vs 2024
- Median grant
- $156,550
- Total assets
- $310,794,417
- +8.4% vs 2024
- New grantees (estimate)
- 22% first-time grantees (4 of 18, 2025; small sample)
- Primary geography
- California (57% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Wikimedia Foundation Inc
- Contact
Mailing address: 1 Sansome Street Suite 1895, San Francisco, CA 94104
Phone: (415) 839-6885
Website: https://wikimediafoundation.org
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Open Grants
5 open opportunities from Wikimedia Foundation Inc
Wikimedia Foundation General Support Fund Grant
Wikimedia Foundation Inc
Amount
US $10,000 - US $550,000
Deadline
Deadline not published
Wikimedia Foundation Multi-Year Funding Grant
Wikimedia Foundation Inc
Amount
US $10,000 - US $550,000
Deadline
Deadline not published
Wikimedia Foundation Rapid Fund Grant
Wikimedia Foundation Inc
Amount
US $500 - US $5,000
Deadline
Deadline not published
Who Wikimedia Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Wikimedia Endowment ($1.5M). Together the top 10 received $3.9M.
Grant Size Distribution
86 grants across all recorded years
The most common grant size was in the $100–250K range: 27 grants of 86 (31%).
Geographic Focus
Where this funder awards grants
The 2025 grant dollars were reported across recipient states as follows: California 57%, New York 18%, Maryland 9%, Illinois 7%, and the District of Columbia 4%. The Foundation’s website describes its work with volunteers and movement organizations around the world.
Grant Distribution by State
Share of 2025 grant dollars across all 18 itemized grants.
States
Cities
Is Wikimedia Foundation Inc open to new grantees?
22%
first-time grantees, 2025
In 2025, 4 of 18 grantees (22%) were first-time recipients. With only 18 grantees, that is a small sample: one grantee more or less moves the share by about 6 points. First grants averaged $95K; repeat grants $289K. How we count
Medians: $101K first-time, $175K repeat.
Estimate from itemized grant lists in IRS Form 990 filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $3.3M (2022) to $15.4M (2020). In 2025 it made 18 grants totaling $4.4M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Wikimedia Endowment San Francisco, CA | Board-approved remit of planned gifts to the wikimedia endowment | $1,490,207 |
| Wiki Education Foundation San Francisco, CA | Multi-year grant for support of the wiki education foundation annual plan for the 2024-2026 period | $500,000 |
| Artfeminism Inc Baltimore, MD | Multi-year grant for support of the art+feminism annual plan for the 2023-2025 period | $404,689 |
| Wikimedia New York City New York, NY | Multi-year grant for support of the wikimedia New York city annual plan for the 2025-2028 period; grant for wikiconference North America 2025 | $305,340 |
| Black Lunch Table Chicago, IL | Grant for support of the black lunch table (a history archiving project) annual plan 2025 | $289,000 |
| Whose Knowledge San Diego, CA | Multi-year grant for support of whose knowledge? Annual plan for the 2024 - 2026 period | $216,300 |
| Wiki Project Med Foundation San Francisco, CA | Grant for support of the wiki project med: achieving global impact | $180,000 |
| Wikitongues Inc New York, NY | Grant for support of wikimedia language diversity hub project; annual plan for 2025 | $170,913 |
| Writing Downtown Inc DBA Wikiportraits Las Vegas, NV | Grant for Support of Wikiportraits: 2025-26 Activities | $163,100 |
| Fractured Atlas Inc New York, NY | Grant for fiscal sponsorship of afrocrowd july 2025 - june 2026 | $150,000 |
Ready to take the next step with Wikimedia Foundation Inc?
Financial History
Multi-year comparison from IRS filings
The Foundation’s website describes it as funded mostly by individual donors through small donations.
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $310,794,417 | $205,389,744 | $189,748,442 | $4,423,356 | 18 | $7,194,577 |
| 2024 | $286,759,938 | $185,418,243 | $178,588,294 | $3,600,936 | 16 | $5,282,433 |
| 2023 | $274,123,369 | $180,199,672 | $168,305,333 | $3,946,341 | 17 | $3,005,859 |
| 2022 | $250,965,442 | $167,911,116 | $145,835,404 | $3,329,384 | 21 | $1,565,366 |
| 2021 | $240,235,101 | $158,987,065 | $111,669,959 | $6,568,328 | 14 | $2,688,670 |
| 2020 | $191,262,962 | $124,631,267 | $112,162,122 | $15,430,043 | 15 | $2,980,572 |
Research compiled by Grantable AI from public sources. Last updated October 2026.
Mission & Focus Areas
The Foundation’s stated mission 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.
Its 2024 filing describes technology support as a core function, including operating servers and maintaining software and infrastructure. It also describes grantmaking for Wikimedia affiliates and other mission-aligned organizations and individuals, alongside volunteer support, partnerships, trust and safety, legal and advocacy work, and communications.
The 2025 grants included support for education, language diversity, arts and gender-related knowledge gaps, history archiving, journalism, and software internships. These grants include Wiki Education Foundation’s annual plan; Art+Feminism’s annual plan; Black Lunch Table’s history archiving project; and Wiktionary? No—the listed language diversity grant went to WikiTongues. The grantees describe their own missions: Art+Feminism says it builds a community committed to closing information gaps related to gender, feminism, and the arts; Black Lunch Table says it works to build a more complete understanding of cultural history by illuminating the stories of Black people; and WikiTongues says it works to support languages and language activists and defend multilingualism.
Grantmaking
In filing year 2025, the Foundation reported 18 grants totaling $4,423,356. Grant amounts ranged from $14,300 to $1,490,207, with a median of $156,550.
The largest reported grants included $1,490,207 to Wikimedia Endowment for the board-approved remit of planned gifts; $500,000 to Wiki Education Foundation for its 2024–2026 annual plan; $404,689 to Art+Feminism for its 2023–2025 annual plan; and $305,340 to Wikimedia New York City for its 2025–2028 annual plan and WikiConference North America 2025. Other grants included $289,000 to Black Lunch Table, $216,300 to Whose Knowledge, $180,000 to Wiki Project Med Foundation, $170,913 to WikiTongues, $163,100 to WikiPortraits, $150,000 each to Fractured Atlas and Internews Network, and $128,000 to Software Freedom Conservancy.
The Foundation’s website says it partners with Wikimedia communities to fund editathons, outreach, events, and conferences.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Nataliia Tymkiv as chair. Listed trustees include Esra'a Al Shafei, Jimmy Wales (founder), Lorenzo Losa, Luis Bitencourt-Emilio, and Raju Narisetti. The filing also lists Shani Evenstein Sigalov as a trustee and committee chair, and Christel Steigenberger as a trustee beginning December 2024. Dariusz Jemielniak is listed as a trustee through January 2025, and Rosie Stephenson-Goodknight as a trustee through December 2024.
Wikimedia Foundation Inc is led by Maryana Iskander, Chief Executive Officer on every filing since 2022; 11 of 25 officers listed in 2025 are compensated.
Officers on the 2025 filing
Maryana Iskander
Chief Executive Officer
On filings since 2022
40 hrs/week
$512K (2023) → $531K (2025)
Nataliia Tymkiv
Chair
Vice Chair → Chair, 2021
On filings since 2020
8 hrs/week
No compensation reported
Raju Narisetti
Trustee & Committee Chair
Trustee → Trustee & Committee Chair, 2025
On filings since 2020
5 hrs/week
No compensation reported
Shani Evenstein Sigalov
Trustee & Committee Chair
Trustee → Trustee & Committee Chair, 2025
On filings since 2021
5 hrs/week
No compensation reported
Lorenzo Losa
Trustee & Committee Chair
Trustee → Trustee & Committee Chair, 2025
On filings since 2022
6 hrs/week
No compensation reported
Kathy Collins
Trustee & Committee Chair
Trustee → Trustee & Committee Chair, 2025
On filings since 2024
6 hrs/week
No compensation reported
Dariusz Jemielniak
Trustee
On filings since 2020
4 hrs/week
No compensation reported
Esra'a Al Shafei
Trustee
On filings since 2020
4 hrs/week
No compensation reported
Jimmy Wales
Trustee
Founder → Trustee, 2021
On filings since 2020
4 hrs/week
No compensation reported
Luis Bitencourt-Emilio
Trustee
On filings since 2022
4 hrs/week
No compensation reported
Rosie Stephenson-Goodknight
Trustee
On filings since 2022
4 hrs/week
No compensation reported
Victoria Doronina
Trustee
On filings since 2022
4 hrs/week
No compensation reported
Christel Steigenberger
Trustee
New on the 2025 filing
4 hrs/week
No compensation reported
Maciej Nadzikiewicz
Trustee
New on the 2025 filing
4 hrs/week
No compensation reported
Mike Peel
Trustee
New on the 2025 filing
4 hrs/week
No compensation reported
Jaime Villagomez
CFO & Treasurer
On filings since 2020
40 hrs/week
$289K (2020) → $417K (2025)
Lisa Seitz
Chief Adv Officer
Chief Advancement Officer → Chief Adv Officer & Dep to CEO, 2023
Chief Adv Officer & Dep to CEO → Chief Adv Officer, 2024
On filings since 2020
40 hrs/week
$252K (2020) → $411K (2025)
Tajh Taylor
Vice President of Data Science & Engineering
Vice President of Data Science & Engineering → Vice President of Data Science & Engin, 2023
Vice President of Data Science & Engin → Vice President of Data Science & Engineering, 2025
On filings since 2022
40 hrs/week
$255K (2022) → $341K (2025)
Rebecca Mackinnon
Vice President of Global Advocacy
On filings since 2023
40 hrs/week
$276K (2023) → $300K (2025)
Selena Deckelmann
Chief Prod & Tech Officer
Cpto → Chief Prod & Tech Officer, 2024
On filings since 2023
40 hrs/week
$174K (2023) → $476K (2025)
Stephen Laporte
General Counsel & Secretary
On filings since 2023
40 hrs/week
$230K (2023) → $377K (2025)
Aeryn Palmer
Deputy General Counsel
New on the 2025 filing
40 hrs/week
$305K (2025)
Anusha Alikhan
Chief Communications Officer
New on the 2025 filing
40 hrs/week
$351K (2025)
Courtney Bass Sherizen
Chief People Officer
New on the 2025 filing
40 hrs/week
$401K (2025)
Dhaval Patel
Principal Investment Manager
New on the 2025 filing
40 hrs/week
$297K (2025)
Former officers (26)
- Former: Olja Dimitrijevic (2025) — Director & Data Platform Engineering · Filing note: Thru 5/2025
- Former: Amanda Keton (2020–2024) — General Counsel & Secretary · Filing note: From 92019
- Former: Margaret Novotny (2020–2024) — Vice President of Product Design
- Former: Tanya Capuano (2020–2024) — Trustee
- Former: Zdenko Vrandecic (2022–2024) — Head of Special Projects
- Former: Michael Peel (2023–2024) — Trustee
- Former: Joshua Minor (2024) — Product Manager
- Former: Anthony Negrin (2020–2023) — Chief Product Officer
- Former: Robyn Arville (2021–2023) — Chief T & C Officer
- Former: Carol Dunn (2022–2023) — Vice President of Prod Management
- Former: Heather Walls (2020–2022) — Chief Creative Officer
- Former: James Heilman (2020–2022) — Trustee
- Former: Janeen Uzzell (2020–2022) — Chief Operating Officer
- Former: Katherine Maher (2020–2022) — Executive Director
- Former: Lisa Lewin (2020–2022) — Trustee
- Former: Grant Ingersoll (2021–2022) — Chief Technology Officer
- Former: Lynette Logan (2022) — Director of Administrator
- Former: Anthony Sebro (2020–2021) — Deputy General Counsel
- Former: Erika Bjune (2020–2021) — Vice President & Engineering · Filing note: From 72019
- Former: Angela Reid (2021) — Vice President, Cmty Res & Sust
- Former: Maria Sefidari Chair (2021) — Trustee · Filing note: Thru 621
- Former: Anthony Le (2020) — Controller
- Former: Joady Lohr (2020) — Director & Human Resources
- Former: Maria Sefidari (2020) — Chair
- Former: Shani Evenstein (2020) — Trustee From
- Former: Valerie D'Costa (2020) — Chief of Community Engagement · Filing note: Thru 11/2019
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $531K, to Maryana Iskander (Chief Executive Officer). 12 officers or directors reported compensation on that filing.
Frequently asked questions about Wikimedia Foundation Inc
How much does Wikimedia Foundation Inc give each year?
Wikimedia Foundation Inc gave $4.4M across 18 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $3.6M across 16 grants.
What is Wikimedia Foundation Inc's typical grant size?
Wikimedia Foundation Inc's median grant in 2025 was $156,550, and its average grant was $245,742, across 18 grants on its 2025 IRS Form 990. Organizations receiving their first grant from Wikimedia Foundation Inc that year got $95K on average.
Where does Wikimedia Foundation Inc give grants?
Wikimedia Foundation Inc gives mostly in California: 57% of the grant dollars itemized on its 2025 IRS Form 990 went to recipients there. The next largest states were New York (18%) and Maryland (9%). The most frequent recipient cities were San Francisco, CA (3 grants), New York, NY (3 grants), Washington, DC (3 grants) and Chicago, IL (2 grants).
Does Wikimedia Foundation Inc give general operating support?
Occasionally: 6% of Wikimedia Foundation Inc's 2025 grants with a stated purpose (1 of 18) were for general or operating support, per its 2025 IRS Form 990.
Who are Wikimedia Foundation Inc's largest grantees?
Wikimedia Foundation Inc's largest 2025 grantees include Wikimedia Endowment ($1,490,207), Wiki Education Foundation ($500,000) and Artfeminism Inc ($404,689), according to its 2025 IRS Form 990. Together they received 54% of its itemized 2025 grant dollars.
How large is Wikimedia Foundation Inc?
Wikimedia Foundation Inc reported $310.8M in total assets on its 2025 IRS Form 990. Its revenue that year was $205.4M.
What does Wikimedia Foundation Inc fund?
The Foundation’s stated mission 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. See mission & focus areas ↑
How do I apply for a grant from Wikimedia Foundation Inc?
Wikimedia Foundation Inc has no public application process in the sources Grantable reviewed. Check wikimediafoundation.org for current guidelines, or contact the foundation directly before submitting a request.
What is Wikimedia Foundation Inc's EIN?
Wikimedia Foundation Inc's EIN (Employer Identification Number) is 20-0049703. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated October 2026. Sourced from IRS Form 990 filings. Research dossier generated October 2026.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS May 11, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS May 16, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS May 4, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS May 13, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS April 29, 2025)
- Added Form 990 for fiscal year 2025 (received by the IRS May 13, 2026)
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in Wikimedia Foundation Inc's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Wikimedia Foundation Inc funder profile. GrantGraph. Retrieved October 15, 2026, from https://grantable.co/funders/wikimedia-foundation-inc-morg_b55ba1a896604ce4afca97d6f7dafbd5
BibTeX
@misc{grantable_200049703_2026,
author = {{Grantable}},
title = {{Wikimedia Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/wikimedia-foundation-inc-morg_b55ba1a896604ce4afca97d6f7dafbd5},
note = {Accessed 2026-10-15. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Wikimedia Foundation Inc's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
Wikimedia Foundation Inc down — hundreds of funders to go?