Sing Sing Prison Museum is a 501(c)(3) organization based in Ossining, New York, registered in 2018, with $2,966,173 in FY2024 revenue. CharityIndex grades it B.
Revenue (FY2024)
$3.0M
▲ 731.2% vs prior year
Arts & Culture median: $159K
Expenses (FY2024)
$603K
Net assets
$3.3M
Employees
—
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 Sing Sing Prison Museum— 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 Sing Sing Prison Museum: 66 mo reserves · +80% margin earns a B+ 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 Sing Sing Prison Museum— 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 Sing Sing Prison Museum: 2 of 5 disclosure signals earns a C on this criterion. See the exact thresholds →
Show this grade on your website
A live seal — it updates automatically when the grade changes and links donors to this verified profile.
Revenue grew from $400K (FY2018) to $3.0M (FY2024) across 7 reported years.
Financial snapshot
Operating margin
79.7%
Revenue exceeded expenses in the latest fiscal year.
Total assets
$4.0M
Total liabilities
$658K
Net assets
$3.3M
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2024 | $2,966,173▲731% | $603,355▲28.8% | $3,323,791▲246% | $3,981,441▲277% | 990 |
| 2023 | $356,861▼21.0% | $468,540▲62.8% | $960,973▼10.0% | $1,055,090▼2.6% | 990 |
| 2022 | $451,882▼36.2% | $287,871▲21.8% | $1,068,043▲18.1% | $1,082,770▲18.3% | 990 |
| 2021 | $708,390▲163% | $236,339▼16.9% | $904,032▲109% | $915,098▲109% | 990 |
| 2020 | $269,798▼55.9% | $284,539▲3.9% | $431,981▼3.3% | $436,981▼4.0% | 990 |
| 2019 | $611,726▲53.1% | $273,756▼18.1% | $446,722▲311% | $455,072▲318% | 990 |
| 2018 | $399,563 | $334,397 | $108,752 | $108,752 | 990 |
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.
13 grants to Sing Sing Prison Museum totaling $2.1M, reported by foundations on their Schedule I filings.
| Grantmaker | Purpose | Year | Amount |
|---|---|---|---|
| Jewish Communal Fund | In furtherance of grantee's tax-exempt purpose | 2024 | $210,000 |
| Jewish Communal Fund | In furtherance of grantee's tax-exempt purpose | 2023 | $250,000 |
| Boston Foundation Inc | Operating support/annual fund | 2023 | $10,000 |
| The New York Community Trust | For general support. | 2023 | $6,000 |
| Jewish Communal Fund | In furtherance of grantee's tax-exempt purpose | 2022 | $475,000 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2021 | $8,500 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2021 | $8,500 |
| Jewish Communal Fund | General support | 2020 | $243,162 |
| Jewish Communal Fund | General support | 2020 | $243,162 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2019 | $250,100 |
| Jewish Communal Fund | General support | 2019 | $172,450 |
| Jewish Communal Fund | General support | 2018 | $225,000 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2018 | $5,100 |
Explore more
Data for Sing Sing Prison Museum (EIN 82-2526738) 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.