Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Mar 2005.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
77 cents of each dollar spent went to programs.
Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.
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Who runs it and what they're paid
24 people listed on the 990; $4.0M paid to officers and key staff.
Maryana Iskander’s $531K as Chief Executive Officer is at the 43rd percentile of top reported officer pay among 674 $100M+ education nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.
Compensation history total reportable pay by year · 8 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | FY2020 |
|---|---|---|---|---|---|---|
| Katherine Maher | — | — | — | $789,495 | $406,339 | $387,770 |
| Maryana Iskander | $530,923 | $472,629 | $512,179 | — | — | — |
| Janeen Uzzell | — | — | — | $503,844 | $314,718 | $282,752 |
| Selena Deckelmann | $475,965 | $437,941 | $173,623 | — | — | — |
| Jaime Villagomez | $416,641 | $391,202 | $374,813 | $386,433 | $308,943 | $289,356 |
| Lisa Seitz | $410,807 | $387,568 | $364,257 | $368,301 | $281,713 | $252,117 |
| Courtney Bass Sherizen | $401,190 | — | — | — | — | — |
| Amanda Keton | — | $383,048 | $376,362 | $396,514 | $315,364 | — |
Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.
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Questions the 990 asks
The form asks each of these directly. These are the filed answers.
- Family or business ties among officersPt VI · Ln 2No
- Top official's pay set by an independent reviewPt VI · Ln 15aYes
Programs and updates
Supports Wikipedia and its sister projects by providing grants, resources, and volunteer support to help the world share free knowledge.
Questions for Wikimedia Foundation INC
Your first name shows with your question. Wikimedia Foundation INC answers here, for everyone.
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Technology
Our core functions include support for the technology that makes wikipedia and other wikimedia projects possible, which together are one of the world's most popular web platforms, and the world's largest collaborative free knowledge project.
Grantmaking and Program Activities
The wikimedia foundation grantmaking and program activities focus on growing wikimedia in various regions around the world and expanding diversity within the contributor base. These programs and efforts directly support contributors through grants for projects, programs, and campaigns by individuals and organizations.
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2024 990, line by line.
Download 990
| Line | Start FY24 | End FY24 |
|---|---|---|
| Cash and savingsLn 1–2 | $77.2M | $84.3M |
| InvestmentsLn 11–13 | $175.5M | $183.4M |
| Land, buildings, equipmentLn 10c | $9.4M | $9.8M |
| Total assetsLn 16 | $274.1M | $286.8M |
| LiabilitiesLn 26 | $19.2M | $15.2M |
| Net assetsLn 32 | $255.0M | $271.6M |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Grants to domestic organizationsLn 1 | $3.6M | $3.6M | ||
| Grants to domestic individualsLn 2 | $107K | $107K | ||
| Grants and assistance to foreign recipientsLn 3 | $23.3M | $23.3M | ||
| Pay of current officers, directors and key staffLn 5 | $3.8M | $2.7M | $827K | $208K |
| Other salaries and wagesLn 7 | $79.8M | $62.6M | $10.3M | $6.9M |
| Pension plan contributionsLn 8 | $1.8M | $1.3M | $311K | $185K |
| Other employee benefitsLn 9 | $12.6M | $9.8M | $1.6M | $1.2M |
| Payroll taxesLn 10 | $4.1M | $2.9M | $781K | $384K |
| Legal feesLn 11b | $3.3M | $3.2M | $26K | $31K |
| Accounting feesLn 11c | $165K | $165K | ||
| Lobbying feesLn 11d | $93K | $93K | ||
| Professional fundraising feesLn 11e | $312K | $312K | ||
| Investment management feesLn 11f | $194K | $194K | ||
| Other fees for servicesLn 11g | $11.1M | $8.4M | $1.6M | $1.1M |
| Advertising and promotionLn 12 | $109K | $53K | $52K | $4K |
| Office expensesLn 13 | $764K | $267K | $371K | $127K |
| Information technologyLn 14 | $6.3M | $4.6M | $1.5M | $98K |
| OccupancyLn 16 | $1.6M | $881K | $550K | $119K |
| TravelLn 17 | $4.3M | $3.4M | $506K | $306K |
| Conferences, conventions and meetingsLn 19 | $1.6M | $1.5M | $62K | $2K |
| Depreciation, depletion and amortizationLn 22 | $4.2M | $3.5M | $745K | |
| InsuranceLn 23 | $503K | $503K | ||
| Other expenses (24a–d)Ln 24 | $15.1M | $5.9M | $1.0M | $8.2M |
| Total functional expensesLn 25 | $178.6M | $138.3M | $21.2M | $19.1M |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest | $205.4M | $189.7M | $15.6M | $296.6M | 990 PDF |
| FY2024 Viewing | $185.4M | $178.6M | $6.8M | $271.6M | 990 PDF |
| FY2023 | $180.2M | $168.3M | $11.9M | $255.0M | 990 PDF |
| FY2022 | $167.9M | $145.8M | $22.1M | $239.4M | 990 PDF |
| FY2021 | $159.0M | $111.7M | $47.3M | $231.2M | 990 PDF |
| FY2020 | $124.6M | $112.2M | $12.5M | $180.3M | 990 PDF |
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Schedules filed Part IV
See the full FY2024 990 (6 parts)
Part I · Summary $185,418,243 revenue, 12 lines filed
Part VI · Governance 12 of 12 board members independent, no flags
Part VIII · Statement of revenue $185,418,243 across 10 lines filed
Part IX · Statement of functional expenses $178,588,294 across 23 lines filed
Part X · Balance sheet $286,759,938 assets, 18 lines filed
Part XI · Reconciliation of net assets $271,555,390 net assets at year end
Form 990 e-file (XML) FY2024 from the IRS · Classification, formation year and address from the IRS Business Master File
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