WIKIMEDIA FOUNDATION ORG

EIN 20-0049703501(c)(3)Public charityActive

1 SANSOME ST STE 1895, SAN FRANCISCO, CA · IRS data through FY2025

Total revenue
$205,389,744
FY2025 · +11% vs FY2024
Total expenses
$189,748,442
FY2025
Net assets
$296,550,030
FY2025
Employees
29
FY2025

Revenue, expenses and net assets

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Revenue Expenses Net assets

Tax yearRevenueExpensesNet assets
FY2025$205,389,744$189,748,442$296,550,030
FY2024$185,418,243$178,588,294$271,555,390
FY2023$180,199,672$168,305,333$254,971,336
FY2022$167,911,116$145,835,404$239,351,532
FY2021$158,987,065$111,669,959$231,177,536
FY2020$124,631,267$112,162,122$180,315,725
FY2019$118,589,500$90,058,977$165,641,425
FY2018$101,575,555$78,731,219$134,949,570
FY2017$89,973,967$69,076,192$113,330,197
FY2016$78,691,737$65,061,845$91,782,795
FY2015$78,127,085$52,452,126$77,820,298
FY2014$52,990,491$45,040,391$53,475,021
FY2013$45,667,316$35,171,555$45,189,124
FY2012$39,702,445$28,964,052$34,929,058

Where the revenue came from

SourceAmount% of revenue
Contributions & grants$187,573,816100%
Program service revenue$00%

Where the money was spent

CategoryAmount% of expenses
Program services$146,283,03477%
Management & general$21,645,03211%
Fundraising$21,820,37611%

What the numbers show

Figures compared against other organizations of the same NTEE program area in the same state. See the methodology page for how these are calculated and the guide to reading nonprofit financials for their limits.

About this organization

IRS status

Ruling year2005
Subsection501(c)(3)
ClassificationPublic charity
Program area (NTEE)B60 — Education (in CA)
DonationsDonations are generally tax-deductible (public charity).

Similar organizations

Source: Internal Revenue Service — Exempt Organizations Business Master File (downloaded September 20, 2026), Statistics of Income extracts, Form 990 e-file data, Publication 78 and the Automatic Revocation list. Figures are as reported by the organization; IRS processing may adjust them. This is not a charity rating and not tax advice. Confirm deductibility in IRS Tax Exempt Organization Search.

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