Jinnie K Simonsen and John V Carbone Foundation is a 501(c)(3) organization based in Tiburon, California, registered in 2021, with $1,727,877 in FY2024 revenue. CharityIndex grades it C+.
Revenue (FY2024)
$1.7M
▲ 3660.8% vs prior year
Medical Research median: $217K
Expenses (FY2024)
$357K
Net assets
$1.4M
Employees
—
Rated on 2 of 4 criteria — the rest aren't reported in this filing type.
Held down by its weakest criterion — a strong score on one criterion can't hide a weak one.
How the rating works →Measures how much of every dollar spent actually reaches programs, plus what it costs to raise $100 of donations. The worse of the two measures sets the letter (85%+ to programs is an A; under $15 to raise $100 is an A), averaged over the three most recent filings. Not scored for Jinnie K Simonsen and John V Carbone Foundation— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
Measures whether the organization is built to last: how many months its reserves would cover expenses (3+ months earns an A-range score, but hoarding 5+ years of budget is capped) and whether it runs a surplus or a deficit. For Jinnie K Simonsen and John V Carbone Foundation: 47 mo reserves · +79% margin earns a A on this criterion. See the exact thresholds →
Checks how the organization is run, from its own Form 990: an independent board majority, a board of five or more, conflict-of-interest, whistleblower and document-retention policies, and independently audited financials. The share of disclosed checks that pass sets the letter. Not scored for Jinnie K Simonsen and John V Carbone Foundation— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
Counts five disclosure signals: a recent filing, a mission statement, program descriptions, a listed website, and the full expense breakdown. More disclosure, better letter. For Jinnie K Simonsen and John V Carbone Foundation: 1 of 5 disclosure signals earns a D on this criterion. See the exact thresholds →
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Revenue grew from $103K (FY2020) to $1.7M (FY2024) across 5 reported years.
Financial snapshot
Operating margin
79.3%
Revenue exceeded expenses in the latest fiscal year.
Total assets
$1.5M
Total liabilities
$109K
Net assets
$1.4M
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2024 | $1,727,877▲3661% | $357,380▲541% | $1,399,676▲4697% | $1,508,502▲2420% | 990PF |
| 2023 | $45,944▼71.2% | $55,716▼64.9% | $29,179▼25.1% | $59,869▼14.0% | 990PF |
| 2022 | $159,446▲2773% | $158,720▲943% | $38,951▲1.9% | $69,641▲82.2% | 990PF |
| 2021 | $5,549▼94.6% | $15,217▼72.1% | $38,225▼20.2% | $38,226▼20.2% | 990PF |
| 2020 | $102,523 | $54,630 | $47,893 | $47,893 | 990PF |
Original Form 990 PDFs (the Form column) are served by ProPublica Nonprofit Explorer, as filed with the IRS. Create a free account to download the CSV report.
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Data for Jinnie K Simonsen and John V Carbone Foundation (EIN 85-2237636) comes from the IRS Business Master File and e-filed Form 990 returns, via CharityIndex. Figures reflect what the organization reported to the IRS for each fiscal year.