Who funds Wikimedia Foundation Org
1,007 institutional funders have given since 2022, 864 of them directly, through tax year 2025.
Its two largest direct donors
- Wikimedia Endowment$5.7M2023–2024
- Alfred P Sloan Foundation$2.1M2022–2024
A free account names its 5 largest direct donors, and the funders behind them.
Unlock potential prospectsFinances
Latest return: tax year 2024, Form 990.
| Tax year | Revenue | Expenses | Net assets |
|---|---|---|---|
| 2024 | $205.4M | $189.7M | $296.6M |
| 2023 | $185.4M | $178.6M | $271.6M |
| 2022 | $180.2M | $168.3M | $255.0M |
| 2021 | $167.9M | $145.8M | $239.4M |
| 2020 | $159.0M | $111.7M | $231.2M |
Contributions and grants received in 2024: $187.6M.
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Built from the organization’s public IRS Form 990 filings and the gifts other organizations report on theirs, processed by Aprize. Institutional donors only: individual donors are never shown. Data as of 1 November 2026.
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