South Fork Natural History Society
Only null% goes to programs Strong reserves Growing revenue
South Fork Natural History Society is a 501(c)(3) organization based in Bridgehampton, New York, registered in 1994, with $1,318,942 in FY2024 revenue. CharityIndex grades it C+.
Po Box 455, Bridgehampton, NY, 11932 EIN 11-2972582 Since 1994
Revenue (FY2024)
$1.3M
▼ 1.2% vs prior year
Environment median: $250K
Expenses (FY2024)
$1.5M
Net assets
$1.4M
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 South Fork Natural History Society— 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 rating11 mo reserves · -14% 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 South Fork Natural History Society: 11 mo reserves · -14% 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 South Fork Natural History Society— 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 South Fork Natural History Society: 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
- Po Box 455, Bridgehampton, NY, 11932
- City
- Bridgehampton
- State
- New York
- Category
- Environment
- Subcategory
- Environmental Education
- Website
- …
Financial trends
Revenue grew from $676K (FY2013) to $1.3M (FY2024) across 12 reported years.
Financial snapshot
Financial health & position (FY2024)
Liabilities $607KNet assets $1.4M
Operating margin
-14.0%
Spent more than it raised in the latest fiscal year.
Total assets
$2.0M
Total liabilities
$607K
Net assets
$1.4M
Financials by year
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2024 | $1,318,942▼1.2% | $1,503,699▲5.6% | $1,420,543▼11.5% | $2,027,428▼7.6% | 990 |
| 2023 | $1,334,462▲18.1% | $1,424,217▲7.6% | $1,605,300▼9.6% | $2,193,135▼6.5% | 990 |
| 2022 | $1,129,721▲15.8% | $1,323,620▲24.7% | $1,776,731▼9.8% | $2,344,936▼11.5% | 990 |
| 2021 | $975,222▼17.0% | $1,061,170▲20.7% | $1,970,630▼4.2% | $2,648,645▼3.9% | 990 |
| 2020 | $1,175,537▲7.9% | $879,452▼18.7% | $2,056,578▲16.8% | $2,755,864▲15.4% | 990 |
| 2019 | $1,089,867▲3.9% | $1,081,855▲3.9% | $1,760,493▲0.5% | $2,387,270▼3.0% | 990 |
| 2018 | $1,049,406▲2.8% | $1,041,220▼2.4% | $1,752,481▲0.5% | $2,460,050▲1.2% | 990 |
| 2017 | $1,020,532▲4.1% | $1,067,252▲1.7% | $1,744,295▼2.6% | $2,430,389▼2.2% | 990 |
| 2016 | $980,505▲2.9% | $1,049,595▲13.6% | $1,791,015▼3.7% | $2,484,255▼3.5% | 990 |
| 2015 | $952,819▲38.8% | $923,688▲18.8% | $1,860,105▲1.6% | $2,575,020▲0.3% | 990 |
| 2014 | $686,668▲1.6% | $777,398▲14.6% | $1,830,974▼4.7% | $2,568,355▼4.2% | 990 |
| 2013 | $675,854 | $678,303 | $1,921,704 | $2,680,854 | 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 · $782K total
34 grants to South Fork Natural History Society totaling $782K, reported by foundations on their Schedule I filings — showing the 15 most recent.
| Grantmaker | Purpose | Year | Amount |
|---|---|---|---|
| Jewish Communal Fund | In furtherance of grantee's tax-exempt purpose | 2024 | $12,850 |
| The New York Community Trust | For general support. | 2024 | $10,500 |
| Jewish Communal Fund | In furtherance of grantee's tax-exempt purpose | 2023 | $56,500 |
| The Us Charitable Gift Trust | For recipient's exempt purpose | 2023 | $18,000 |
| Fidelity Investments Charitable Gift Fund | For grant recipient's exempt purposes | 2023 | $9,850 |
| National Philanthropic Tr | Public, societal benefit | 2023 | $9,000 |
| Donor Advised Charitable Giving | Environmental and animals | 2023 | $8,700 |
| Jewish Community Foundation of Greater Metrowest Nj | General | 2023 | $6,000 |
| Greater Miami Jewish Federation | General support | 2022 | $125,000 |
| Jewish Communal Fund | In furtherance of grantee's tax-exempt purpose | 2022 | $34,250 |
| Jewish Community Foundation of Greater Metrowest Nj | General charitable purposes | 2022 | $12,000 |
| Morgan Stanley Global Impact Funding Trust Inc | Unrestricted general support | 2022 | $6,000 |
| National Philanthropic Tr | Environment, animals | 2022 | $6,000 |
| Donor Advised Charitable Giving | Environmental and animals | 2022 | $5,600 |
| Jewish Communal Fund | General support | 2021 | $15,850 |
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Frequently asked questions
- Is South Fork Natural History Society a legitimate nonprofit?
- Yes. South Fork Natural History Society is a 501(c)(3) organization registered with the U.S. Internal Revenue Service under EIN 11-2972582, based in Bridgehampton, New York. Donations are tax-deductible.
- What is South Fork Natural History Society's EIN?
- South Fork Natural History Society's Employer Identification Number (EIN) is 11-2972582.
- How much revenue does South Fork Natural History Society report?
- South Fork Natural History Society reported $1,318,942 in total revenue on its fiscal year 2024 IRS Form 990 filing.
- What financial grade does South Fork Natural History Society have?
- CharityIndex grades South Fork Natural History Society C+, based on financial health (reserves and operating margin).
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Data for South Fork Natural History Society (EIN 11-2972582) 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.