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The Clamshell Foundation Inc at a glanceAlso receives grants: funding profile →

· Public charity

The Clamshell Foundation Inc

The purpose of the corporation, as stated in our charter, is to enrich the lives of others by fostering education in health, cultural, and environmental fields of endeavor.

$278k
Granted FY2020
8
Grants FY2020
1
States reached
$98k
Largest
01What it fundsRead
02The needRead
03Its fieldRead
01What it funds
01FY2020 · 8 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2020

  • $10k–50k6 grants · $108k
  • $50k–250k2 grants · $165k
$25,563
Median grant
1
States reached
$41k
Total assets
Largest grants
RecipientAmount
THE RETREAT$98,229
VARIOUS LOCAL CHARITIES$66,697
EAST HAMPTON FOOD PANTRY$26,053
SPRINGS FOOD PANTRY$25,563
MONTAUK FOOD PANTRY$25,563
SAG HARBOR FOOD PANTRY$10,563
OLA OF EASTERN LI$10,300
THE NEO POLITICAL COWGIRLS$10,000
02The need
02

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY20–20, $98k) land where the poverty rate runs at 7%, against an area that typically sits at 5%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 5%THE RETREAT: $98k → 7%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its field
03the grantee network

7 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 7 of the 8 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
7/7
Grantees still filing
2/7
Grew since first funded

Where the money sits, by cause and then by grantee

Retreat Inc: $98,229 · Human ServicesRetreat IncEAST HAMPTON FOOD PANTRY INC: $26,053 · Food & NutritionEAST HAMPTON FOOD PANTRY INCSPRINGS FOOD PANTRY INC: $25,563 · Food & NutritionSPRINGS FOOD PANTRY INCMONTAUK FOOD PANTRY: $25,563 · Food & NutritionMONTAUK FOOD PANTRYSAG HARBOR COMM FOOD PANTRY INC: $10,563 · Food & NutritionSAG HARBOR COMM FOOD PANTRY INCVARIOUS LOCAL CHARITIES: $66,697 · OtherVARIOUS LOCAL CHARITIESOLA OF EASTERN LONG ISLAND INC: $10,300 · Arts & CultureTHE NEO POLITICAL COWGIRLS INC: $10,000 · Arts & Culture
Human Services$98,229Food & Nutrition$87,742Other$66,697Arts & Culture$20,300

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0Mgrantee revenue →↑ funder's share of their budgetRetreat Inc: $98,229 over 1y, 2.0% of budgetEAST HAMPTON FOOD PANTRY INC: $26,053 over 1y, 2.2% of budgetSPRINGS FOOD PANTRY INC: $25,563 over 1y, 2.0% of budgetMONTAUK FOOD PANTRY: $25,563 over 1y, 4.9% of budgetSAG HARBOR COMM FOOD PANTRY INC: $10,563 over 1y, 1.8% of budgetOLA OF EASTERN LONG ISLAND INC: $10,300 over 1y, 0.4% of budgetTHE NEO POLITICAL COWGIRLS INC: $10,000 over 1y, 15% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

The New York Communit…The Edward T Haberman…Kate Cassidy Foundati…The Hilaria and Alec …Stephenson Pope Babco…Andrew Sabin Family F…Leslie L Alexander Fo…The Goldman Sachs Cha…National Philanthropi…Vanguard Charitable E…Network for GoodDonor Advised Charita…
The New York Community TrustNY17.4× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The New York Community Trust · The Edward T Habermann & Susan B Koehn Foundation · Kate Cassidy Foundation · The Hilaria and Alec Baldwin Foundation Inc · Stephenson Pope Babcock Foundation · Andrew Sabin Family Foundation · Leslie L Alexander Foundation Inc · The Goldman Sachs Charitable Gift Fund · National Philanthropic Trust · Vanguard Charitable Endowment Program · Network for Good · Donor Advised Charitable Giving Inc

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization The Clamshell Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Clamshell Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24
no gov · 00%1%5%11%20%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    5report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–40%
    typical government reliance, FY20–24
    How this is measured
    Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.

    On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 8 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

    How this is measured
    Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

    Generated from the IRS Form 990 e-file return for fiscal year 2020, released 2020. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Possibly out of date. A more recent filing (FY2025) is on record and reports $34k of grant expense, but none of it to a named recipient. On a Form 990 that can mean grants abroad, filed by region only (Schedule F), grants under $5,000, which are not itemized, or a schedule referenced as an attachment the e-file does not carry. The figures above are therefore from FY2020, the most recent year this funder named its grantees.

    Source object · view filing

    Play a game based on Clamshell’s filings →

    More from the funding graph

    The unnamed billions
    grants reported with no recipient in the public record
    The regranting layer
    51% of grant dollars land in the regranting layer
    The DAF merry-go-round
    $9.7B circulates between donor-advised funds
    The endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home