Peninsula Open Space Trust
Only null% goes to programs Strong reserves Declining revenue
Peninsula Open Space Trust is a 501(c)(3) organization based in Palo Alto, California, registered in 1977, with $30,308,636 in FY2023 revenue. CharityIndex grades it C+.
222 High St, Palo Alto, CA, 94301 EIN 94-2392007 Since 1977
Revenue (FY2023)
$30.3M
▲ 22.4% vs prior year
Environment median: $250K
Expenses (FY2023)
$33.9M
Net assets
$328.2M
Employees
—
CharityIndex rating
One independent A+ to F grade from four published criteria, each scored separately from IRS filings and combined by weight.
C+
—Program efficiency40% of the ratingNo expense breakdown in filings
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 Peninsula Open Space Trust— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
C+Financial health25% of the rating116 mo reserves · -12% margin
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 Peninsula Open Space Trust: 116 mo reserves · -12% margin earns a C+ on this criterion. See the exact thresholds →
—Governance25% of the ratingNot reported in this filing type
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 Peninsula Open Space Trust— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
CTransparency10% of the rating2 of 5 disclosure signals
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 Peninsula Open Space Trust: 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.
Contact & location
- Address
- 222 High St, Palo Alto, CA, 94301
- City
- Palo Alto
- State
- California
- Category
- Environment
- Subcategory
- Environmental Beautification
- Website
- …
Financial trends
Revenue grew from $14.9M (FY2013) to $30.3M (FY2023) across 10 reported years.
Financial snapshot
Financial health & position (FY2023)
Liabilities $11.1MNet assets $328.2M
Operating margin
-11.7%
Spent more than it raised in the latest fiscal year.
Total assets
$339.3M
Total liabilities
$11.1M
Net assets
$328.2M
Financials by year
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2023 | $30,308,636▲22.4% | $33,859,528▲16.7% | $328,194,673▲3.3% | $339,333,871▲0.7% | 990 |
| 2022 | $24,754,163▼18.1% | $29,012,366▲50.3% | $317,703,621▲1.9% | $336,966,025▲5.7% | 990 |
| 2021 | $30,206,948▼22.0% | $19,307,818▼17.2% | $311,746,170▼5.3% | $318,771,213▼6.4% | 990 |
| 2020 | $38,732,952▲24.5% | $23,312,465▼37.4% | $329,116,630▲10.5% | $340,634,418▲8.8% | 990 |
| 2019 | $31,121,942▼1.8% | $37,259,526▲37.4% | $297,739,059▼2.1% | $313,034,665▼0.9% | 990 |
| 2018 | $31,685,000▲34.2% | $27,124,227▲82.3% | $303,989,779▲7.5% | $315,775,082▲7.8% | 990 |
| 2016 | $23,615,428▲48.2% | $14,881,452▲16.2% | $282,741,934▲3.3% | $293,022,267▲3.4% | 990 |
| 2015 | $15,930,527▼49.0% | $12,802,145▲1.1% | $273,678,560▲1.6% | $283,267,131▼0.8% | 990 |
| 2014 | $31,241,599▲110% | $12,663,233▼35.7% | $269,440,411▲7.6% | $285,514,675▲8.3% | 990 |
| 2013 | $14,889,929 | $19,704,443▲47.3% | $250,430,532▲3.4% | $263,526,136▲2.9% | 990 |
| 2012 | — | $13,377,749▼45.2% | $242,241,277▲4.6% | $256,055,632▲7.4% | 990 |
| 2011 | — | $24,429,424▲217% | $231,665,002▲1.9% | $238,471,093▲2.9% | 990 |
| 2009 | — | $7,702,975 | $227,330,950 | $231,823,470 | 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.
Grants received · $39.3M total
183 grants to Peninsula Open Space Trust totaling $39.3M, reported by foundations on their Schedule I filings — showing the 15 most recent.
| Grantmaker | Purpose | Year | Amount |
|---|---|---|---|
| Silicon Valley Community Foundation | Environment | 2024 | $858,180 |
| American Online Giving Foundation Inc | General support | 2024 | $338,294 |
| Morgan Stanley Global Impact Funding Trust Inc | Unrestricted general support | 2024 | $195,000 |
| Resources Legacy Fund | Land or marine conservation, climate change, and/or environmental equity and justice | 2024 | $85,000 |
| Tides Foundation | Sustainable environment | 2024 | $61,000 |
| American Endowment Foundation | Environmental | 2024 | $39,250 |
| Raymond James Charitable Endowment Fund | General support | 2024 | $21,950 |
| Charities Aid Foundation America | Charitable donation | 2024 | $20,853 |
| Gs Donor Advised Philanthropy Fund For Wealth Management Inc | Environment & animal protection | 2024 | $19,500 |
| Los Altos Community Foundation | Operations | 2024 | $10,500 |
| The Us Charitable Gift Trust | For recipient's exempt purpose | 2024 | $8,450 |
| Ayco Charitable Foundation | Environment & animal protection | 2024 | $7,500 |
| Amalgamated Charitable Foundation Inc | General operating support | 2024 | $6,000 |
| Paypal Charitable Giving Fund | General support | 2024 | $5,074 |
| Donor Advised Charitable Giving | Environmental and animals | 2023 | $1,682,390 |
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Frequently asked questions
- Is Peninsula Open Space Trust a legitimate nonprofit?
- Yes. Peninsula Open Space Trust is a 501(c)(3) organization registered with the U.S. Internal Revenue Service under EIN 94-2392007, based in Palo Alto, California. Donations are tax-deductible.
- What is Peninsula Open Space Trust's EIN?
- Peninsula Open Space Trust's Employer Identification Number (EIN) is 94-2392007.
- How much revenue does Peninsula Open Space Trust report?
- Peninsula Open Space Trust reported $30,308,636 in total revenue on its fiscal year 2023 IRS Form 990 filing.
- What financial grade does Peninsula Open Space Trust have?
- CharityIndex grades Peninsula Open Space Trust C+, based on financial health (reserves and operating margin).
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Data for Peninsula Open Space Trust (EIN 94-2392007) 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.