Tosa Foundation

EIN 94-3165171501(c)(3)Private foundationActive

3130 Alpine Rd Ste 288 Pmb 705, Portola Vally, CA · IRS data through FY2023

Total revenue
$57,041,598
FY2023 · +26% vs FY2022
Total expenses
$89,832,883
FY2023
Net assets
$454,947,210
FY2023

Revenue, expenses and net assets

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Revenue Expenses Net assets

Tax yearRevenueExpensesNet assets
FY2023$57,041,598$89,832,883$454,947,210
FY2022$45,134,010$47,905,491$428,846,820
FY2021$135,076,785$108,762,738$520,337,252
FY2020$84,531,812$62,285,273$587,144,836
FY2019$86,919,426$37,388,484$565,751,949
FY2015$19,541,165$113,513,835$549,004,268
FY2014$74,114,146$137,326,540$642,826,937
FY2013$92,669,354$107,885,974$706,000,080
FY2012$277,551,435$53,625,112$696,106,504
FY2011$19,631,195$65,586,105$462,197,181

Form 990 filings

The returns filed by Tosa Foundation (EIN 94-3165171), including Form 990-PF PDFs and e-file data by year, are available in ProPublica's Nonprofit Explorer. The figures on this page come from IRS data files built from those returns.

Where the revenue came from

SourceAmount% of revenue
Contributions & grants$30,396,50053%
Other revenue$26,645,09847%

Grants paid

Total contributions, gifts and grants paid by year, as reported on Form 990-PF. Individual recipients are not published. See private foundations in CA. See the largest grantmakers.

Tax yearGrants paid
FY2023$88,885,636
FY2022$46,104,859
FY2021$107,765,350
FY2020$61,127,880
FY2019$36,587,513
FY2015$111,946,011
FY2014$136,485,411
FY2013$106,694,973
FY2012$52,528,340
FY2011$65,074,655

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.

IRS status

Ruling year1992
Subsection501(c)(3)
ClassificationPrivate foundation
Program area (NTEE)T22 — Philanthropy, Voluntarism & Grantmaking Foundations (in CA)
DonationsListed in the IRS Publication 78 data as eligible to receive tax-deductible contributions (private foundation).

Similar organizations

Source: Internal Revenue Service — Exempt Organizations Business Master File (downloaded November 4, 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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