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Nancy Spofford Yerkes Foundation Inc at a glance

· Private foundation

Nancy Spofford Yerkes Foundation Inc

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$147k
Granted FY2024still arriving
21
Grants FY2024still arriving
11
States reached
$10k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Education$395kHealth$133kHuman Services$97kArts & Culture$59kEnvironment$59kReligion$48kAnimals$33kPublic Safety & Disaster$15kOther$0
02FY2024 · 21 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k12 grants · $57k
  • $10k–50k9 grants · $90k
$6,000
Median grant
11
States reached
$2.7M
Total assets
Largest grants
RecipientAmount
Safe Futures$10,000
American Chestnut foundation$10,000
Mystic & Noank Library$10,000
Tulane University$10,000
Tufts University$10,000
Island Health Project$10,000
The UConn Foundation Inc$10,000
Fishers Island Community Ctr Inc$10,000
The Hotchkiss School$10,000
Avalonia Land Conservancy Inc$7,000
College of Charleston$6,000
Indian Mountain School$5,000
Oxbridge Academy$5,000
Fishers Island Fire Department$5,000
Dartmouth College$5,000
02The need
03

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 (FY20–24, $77k) land where the poverty rate runs at 8%, against an area that typically sits at 11%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 11%Fishers Island Community Ctr Inc: $10k → 7%Safe Futures: $17k → 9%Safe Futures: $15k → 9%Fishers Island Community Ctr Inc: $5k → 7%Spark Makerspace: $10k → 9%Safe Futures: $10k → 9%Safe Futures: $10k → 9%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.

Which US states its grants reach

NH
WA
MN
NY
MA
NJ
CT
RI
VA
NC
SC
OK
LA
GA
TX
FL
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 grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

80%of every dollar goes to organizations it has funded before.
$639k · 26 repeat orgs$161k to everyone else

Grantees it renews have grown median revenue +33% since the first grant, against +7% for those funded once.

26 repeat relationships: 15 still active in FY2024, 11 since wound down; 5 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

26
19

Total granted

$639k
$118k

Median revenue growth · since first grant

+33%
+7%

Still filing today

73%
74%

New vs renewed · share of each year

In FY2024, 70% of grant dollars renewed an existing relationship; $43k went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24
EducationHealthArts & CultureHuman ServicesEnvironmentPhilanthropyOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • TH
    THE HOTCHKISS SCHOOL
    8× · 2017–2024 · $70k · revenue +88%
  • TA
    THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
    8× · 2017–2024 · $53k · revenue +72%
  • SF
    Safe Futures Inc
    4× · 2020–2024 · $52k · revenue +21%

Funded once

  • CC
    Chelan County Mtn Rescue
    one grant, 2022 · $25k
  • PN
    PAWCATUCK NEIGHBORHOOD CENTER INCgraduated
    one grant, 2020 · $17k · revenue +55%
  • SM
    Spark Makerspace Co
    one grant, 2023 · $10k · revenue +7%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
2
Stony Brook Internists University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
3
Stony Brook Surgical Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
4
Stony Brook Ophthalmology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
5
Neurology Associates of Stony Brook University Faculty Practice Corp

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
6
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
7
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
8
Stony Brook Orthopedic Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
9
Stony Brook Urology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
10
Stony Brook Childrens Services University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
11
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
12
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
How this is measured
The grantee most central to the portfolio’s shape is The Taft School Corporation; the most unlike its peers is Spark Makerspace Co. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

39 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. 39 of the 52 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)
5
Early backer (in before they grew)
39/39
Grantees still filing
29/39
Grew since first funded

Where the money sits, by cause and then by grantee

THE HOTCHKISS SCHOOL: $70,000 · EducationTHE HOTCHKISS SCHOOLTHE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND: $53,000 · EducationTHE ADMINISTRATORS OF THE TULANE EDUCATIONAL…ST GEORGE'S SCHOOL: $40,200 · EducationST GEORGE'S SCHOOLTHE TAFT SCHOOL CORPORATION: $40,000 · EducationTHE TAFT SCHOOL CORPORATIONTrustees of Dartmouth College: $37,000 · EducationTrustees of Dartmouth CollegeST BERNARD'S SCHOOL INC: $19,000 · EducationST BERNARD'S SCHOOL INCINDIAN MOUNTAIN SCHOOL INC: $14,500 · Education+8 more: $57,500 · Education+8 moreCHRIST EPISCOPAL CHURCH: $41,000 · OtherCHRIST EPISCOPAL CHURCHPlanned Parenthood: $39,696 · OtherPlanned ParenthoodTHE TRUSTEES OF THE NEW YORK SOCIETY LIBRARY: $35,466 · OtherTHE TRUSTEES OF THE NEW YORK SOCI…ROSARIAN ACADEMY: $35,000 · OtherROSARIAN ACADEMYChelan County Mtn Rescue: $25,030 · OtherChelan County Mtn RescueOxbridge Academy: $10,000 · OtherIndividual grant recipient: $10,000 · OtherLawrence Mem Hospital: $10,000 · OtherMPM Foundation: $9,000 · Other+10 more: $35,830 · Other+10 moreSafe Futures Inc: $52,000 · Human ServicesSafe Futures…PAWCATUCK NEIGHBORHOOD CENTER INC: $17,000 · Human ServicesPAWCATUCK NE…FISHERS ISLAND COMMUNITY CENTER INC: $15,000 · Human ServicesFISHERS ISLA…Spark Makerspace Co: $10,000 · Human ServicesSpark Makers…ISLAND HEALTH PROJECT INC: $47,999 · HealthISLAND HE…STEPHY'S PLACE - A NEW LIFE SUPPORT CENTER FOR GRIEF AND LOSS: $7,500 · HealthSTEPHY'S …AMERICAN FOUNDATION FOR SUICIDE PREVENTION: $6,500 · HealthAMERICAN …AMERICAN CANCER SOCIETY INC: $3,708 · HealthMAYO CLINIC: $3,000 · HealthAmerican Heart Association Inc: $2,500 · HealthTHE AMERICAN CHESTNUT FOUNDATION: $47,363 · EnvironmentAVALONIA LAND CONSERVANCY INC: $7,000 · EnvironmentSUSTAINABLE LEARNING INC: $5,000 · EnvironmentMystic Museum of Art Inc: $10,000 · Arts & CultureLINCOLN CENTER FOR THE PERFORMING ARTS INC: $5,600 · Arts & CultureTHE MARINERS' MUSEUM: $5,000 · Arts & CultureNoank Historical Society Inc: $3,333 · Arts & CultureFISHERS ISLAND FIRE DEPARTMENT: $10,000 · Public Safety & Disaster
Education$331,200Other$251,022Human Services$94,000Health$71,207Environment$59,363Arts & Culture$23,933Public Safety & Disaster$10,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetTHE HOTCHKISS SCHOOL: $70,000 over 8y, 0.0% of budgetTHE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND: $53,000 over 8y, 0.0% of budgetSafe Futures Inc: $52,000 over 4y, 0.5% of budgetISLAND HEALTH PROJECT INC: $47,999 over 8y, 1.0% of budgetTHE AMERICAN CHESTNUT FOUNDATION: $47,363 over 5y, 0.4% of budgetST GEORGE'S SCHOOL: $40,200 over 8y, 0.0% of budgetTHE TAFT SCHOOL CORPORATION: $40,000 over 8y, 0.0% of budgetTrustees of Dartmouth College: $37,000 over 7y, 0.0% of budgetTHE TRUSTEES OF THE NEW YORK SOCIETY LIBRARY: $35,466 over 3y, 0.4% of budgetST BERNARD'S SCHOOL INC: $19,000 over 7y, 0.0% of budgetPAWCATUCK NEIGHBORHOOD CENTER INC: $17,000 over 1y, 1.1% of budgetFISHERS ISLAND COMMUNITY CENTER INC: $15,000 over 2y, 1.0% of budgetINDIAN MOUNTAIN SCHOOL INC: $14,500 over 8y, 0.0% of budgetTrustees of Tufts College: $10,000 over 1y, 0.0% of budgetFISHERS ISLAND FIRE DEPARTMENT: $10,000 over 2y, 2.3% of budgetSpark Makerspace Co: $10,000 over 1y, 6.4% of budgetMystic Museum of Art Inc: $10,000 over 1y, 0.7% of budgetTHE PROTESTANT EPISCOPAL HIGH SCHOOL IN VIRGINIA: $10,000 over 2y, 0.0% of budgetTHE UNIVERSITY OF CONNECTICUT FOUNDATION INC: $10,000 over 1y, 0.0% of budgetMYSTIC & NOANK LIBRARY INC: $10,000 over 1y, 0.9% of budgetAmerican Bird Conservancy: $8,000 over 6y, 0.0% of budgetSTEPHY'S PLACE - A NEW LIFE SUPPORT CENTER FOR GRIEF AND LOSS: $7,500 over 3y, 1.1% of budgetAVALONIA LAND CONSERVANCY INC: $7,000 over 1y, 0.5% of budgetTHE UNIVERSITY OF FLORIDA FOUNDATION INC: $7,000 over 1y, 0.0% of budgetAMERICAN FOUNDATION FOR SUICIDE PREVENTION: $6,500 over 3y, 0.0% of budgetLINCOLN CENTER FOR THE PERFORMING ARTS INC: $5,600 over 1y, 0.0% of budgetTHE MARINERS' MUSEUM: $5,000 over 5y, 0.0% of budgetTHE STONINGTON FREE LIBRARY INC: $5,000 over 1y, 0.5% of budgetGILLEN BREWER SCHOOL: $5,000 over 1y, 0.1% of budgetAMERICAN CANCER SOCIETY INC: $3,708 over 4y, 0.0% of budgetMAYO CLINIC: $3,000 over 1y, 0.0% of budgetISLAND PEOPLES PROJECT: $3,000 over 1y, 3.2% of budgetTHE BRONXVILLE SCHOOL FOUNDATION INC: $2,800 over 1y, 0.4% of budgetAmerican Heart Association Inc: $2,500 over 4y, 0.0% of budgetHENRIK LUNDQVIST FOUNDATION INC: $1,000 over 1y, 0.2% of budgetTHE MENTAL HEALTH ASSOCIATION OF NEW YORK CITY INC: $500 over 1y, 0.0% of budgetTHE ONE LOVE FOUNDATION IN HONOR OF YEARDLEY LOVE INC: $500 over 1y, 0.0% 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 Long Stems Founda…Kitchings Family Foun…The Community Foundat…Chelsea Groton Founda…The New York Communit…Dominion Energy Chari…The Goldman Sachs Cha…Fromson Foundation IncThe Wimpfheimer Found…The Frederic C Hamilt…The Willinphila Found…Dime Bank Foundation …
The Long Stems Foundation IncNY15.7× affinity5 shared granteesties to 9 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Long Stems Foundation Inc · Kitchings Family Foundation · The Community Foundation of Eastern Connecticut Inc · Chelsea Groton Foundation · The New York Community Trust · Dominion Energy Charitable Foundation · The Goldman Sachs Charitable Gift Fund · Fromson Foundation Inc · The Wimpfheimer Foundation Inc · The Frederic C Hamilton Family Foundation · The Willinphila Foundation · Dime Bank Foundation 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 Nancy Spofford Yerkes Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Nancy Spofford Yerkes Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 100%1%3%6%10%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 13%
  • Avalonia Land Conservancy Inc: 21% of income from government
  • Safe Futures Inc: 15% of income from government
  • Trustees of Tufts College: 13% of income from government
  • The Stonington Free Library Inc: 2% of income from government
  • Mystic & Noank Library Inc: 0% of income from government
no gov moneyreceives it· size = income
10get no government money at all
6report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
typical government reliance, FY20–25
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 52 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-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Nancy Spofford Yerkes’ 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