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· Private foundation

The Catherine Jefferson Foundation Inc

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$2.9M
Granted FY2025still arriving
27
Grants FY2025still arriving
10
States reached
$1.1M
Largest
01What it funds
0187% classified

What it funded, over time

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

Education$6.8MFood & Nutrition$2.4MRecreation & Sports$2.0MPhilanthropy$1.4MHealth$295kScience & Tech$80kPublic Benefit$76kHuman Services$58kOther$0
02FY2025 · 27 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k10 grants · $28k
  • $10k–50k8 grants · $196k
  • $50k–250k7 grants · $853k
  • $250k+2 grants · $1.8M
$25,000
Median grant
10
States reached
$32M
Total assets
Largest grants
RecipientAmount
AVON OLD FARMS$1,150,000
SYRACUSE UNIVERSITY$650,000
DUKE UNIVERSITY$241,000
OLD CHATHAM GOLF CLUB$150,000
DURHAM ACADEMY$110,000
ORMCF INC$101,600
ST PAUL'S SCHOOL$100,000
KELLOGG SCHOOL OF MANAGEMENT$100,000
HEADSTRONG FOUNDATION$50,000
TEWAARATON FDN$40,000
TEAM IMPACT$40,000
BRONX LACROSSE$25,000
THE PURCHASE COLLEGE FOUNDATION$25,000
HARLEM LACROSSE$25,000
Individual grant recipient$20,000
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 (FY17–25, $44k) land where the poverty rate runs at 9%, against an area that typically sits at 10%. 1% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%A SHOT FOR LIFE: $500 → 8%HUMAN NEEDS FOOD PANTRY: $500 → 16%DARIEN YMCA: $10k → 9%DARIEN YMCA: $10k → 9%DARIEN YMCA: $10k → 9%DARIEN YMCA: $5k → 9%DARIEN YMCA: $5k → 9%DARIEN YMCA: $3k → 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

IL
NY
MA
IN
PA
NJ
CT
CA
VA
MD
DE
NC
DC
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.

88%of every dollar goes to organizations it has funded before.
$15M · 42 repeat orgs$2.0M to everyone else

Grantees it renews have grown median revenue +22% since the first grant, against 0% for those funded once.

42 repeat relationships: 15 still active in FY2025, 27 since wound down; 12 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

42
63

Total granted

$15M
$1.7M

Median revenue growth · since first grant

+22%
0%

Still filing today

48%
25%

New vs renewed · share of each year

In FY2025, 87% of grant dollars renewed an existing relationship; $362k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
EducationHealthRecreation & SportsPhilanthropyHuman ServicesEnvironmentOther
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

  • SYRACUSE UNIVERSITY
    6× · 2017–2025 · $3.0M · revenue +45%
  • DUKE UNIVERSITY
    7× · 2017–2025 · $551k · revenue +51%
  • TI
    TEAM IMPACT INC
    4× · 2022–2025 · $215k · revenue +26%

Funded once

  • RC
    RENAISSANCE CHARITABLE FUND
    one grant, 2017 · $1.0M
  • FF
    FERRARO FAMILY FOUNDATION INCORPORATED
    one grant, 2023 · $64k · revenue -344%
  • 3F
    315 FDN INC
    one grant, 2023 · $50k
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
Samuel Waxman Cancer Research Foundation

The samuel waxman cancer research foundation (the "foundation") funds innovative research to bring faster cures to patients. in addition to supporting ongoing collaborative research in specific cancers, our scientists are investigating the…

—
2
Dana-Farber Cancer Care Network Inc

The mission of Dana-Farber Cancer Care Network (DFCCN) is to promote and support, directly or indirectly, the interests and purposes of Dana-Farber Cancer Institute (DFCI).

Health
3
Cancer Research Fund of the Damon Runyon-Walter Winchell Foundation

To accelerate breakthroughs by providing today's best young scientists with funding to pursue innovative cancer research. the foundation's goals are to identify and fund the best and brightest early-career scientists in cancer research;…

Health
4
Sarnoff Cardiovascular Research Foundation Inc

The sarnoff cardiovascular research foundation is dedicated to cultivating the next generation of physician-leaders in cardiovascular medicine by funding and supporting medical students and physicians engaged in transformative research.

Health
5
National Lacrosse League Inc

To promote and foster member clubs by exhibiting to the public professional indoor lacrosse of the highest possible quality, and to enhance public awareness of the sport and its players.

Recreation & Sports
6
Healthix Inc

The mission of healthix inc. is to create an achievable, sustainable and replicable model for integrating clinical information across multiple health care organizations which supports new york state and federal strategic health information…

Public Benefit
7
Trustees of Dartmouth College

Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.

Education
8
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
9
Dana-Farber Inc

The purpose and activities of dana-farber, inc. are to promote and support the exempt missions of dana-farber cancer institute and to provide investment management services.

Unclassified
10
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
11
Alcides E Rosaura Diniz Foundation

The mission of the foundation is to raise funds and foster basic and translational research to identify genetic causes of specific cancers, understand how genes contribute to the disease, and use that understanding to help develop better…

—
12
Hippocratic Cancer Research Foundation Inc

Accelerate and increase impact of scientific discoveries within cancer biology and oncology.

Health
How this is measured
The grantee most central to the portfolio’s shape is Team Impact Inc; the most unlike its peers is Ferraro Family Foundation Incorporated. 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

44 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. 44 of the 117 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.

2
Load-bearing (≥25% of a budget)
9
Early backer (in before they grew)
41/44
Grantees still filing
28/44
Grew since first funded

Where the money sits, by cause and then by grantee

NEW CANAAN CNTY SCHOOL: $3,549,821 · OtherNEW CANAAN CNTY SCHOOLAVON OLD FARMS: $3,319,362 · OtherAVON OLD FARMSSYRACUSE UNIVERSITY LACROSSE: $1,101,000 · OtherSYRACUSE UNIVERSITY LACROSSERENAISSANCE CHARITABLE FUND: $1,000,000 · OtherRENAISSANCE CHARITABLE FUNDIndividual grant recipient: $861,930 · OtherIndividual grant recipient+74 more: $1,926,698 · Other+74 moreSYRACUSE UNIVERSITY: $3,000,000 · EducationSYRACUSE UNIVERSITYDUKE UNIVERSITY: $551,000 · EducationDUKE UNIVERSITYTHE TEWAARATON FOUNDATION: $353,795 · EducationTHE TEWAARATON FOUNDATIONPURCHASE COLLEGE FOUNDATION INC: $175,000 · Education+7 more: $210,460 · EducationOLD CHATHAM GOLF CLUB: $150,000 · Recreation & SportsPLL ASSISTS INC: $130,000 · Recreation & SportsNorthwestern University: $100,000 · Recreation & SportsWASHINGTON INNER CITY LACROSSE FOUNDATION: $80,000 · Recreation & SportsHARLEM LACROSSE AND LEADERSHIP CORPORATION: $66,307 · Recreation & SportsBRONX LACROSSE INC CO OTA: $25,000 · Recreation & Sports+1 more: $10,500 · Recreation & SportsTEAM IMPACT INC: $215,000 · PhilanthropyATHLETES WHO CARE INC: $90,000 · PhilanthropyFERRARO FAMILY FOUNDATION INCORPORATED: $64,300 · Philanthropy+4 more: $8,200 · PhilanthropyHEADSTRONG FOUNDATION: $50,000 · HealthST JOHN RESCUE INC: $25,000 · HealthThe Stamford Hospital: $22,500 · HealthChildren's Hospital Corporation: $16,061 · HealthMS HOPE FOR A CURE INC: $10,000 · HealthMARK GLICINI MEANINGFUL GROWTH FOUNDATION CORP: $7,500 · HealthAmerican Heart Association Inc: $5,000 · Health+1 more: $100 · HealthDARIEN COMMUNITY YOUNG MEN'S CHRISTIAN ASSOCIATION INC: $42,500 · Human Services+2 more: $1,000 · Human ServicesSOCIAL TEES ANIMAL RESCUE FOUNDATION IN: $14,200 · AnimalsFROSTED FACES FOUNDATION INC: $5,150 · Animals
Other$11,758,811Education$4,290,255Recreation & Sports$561,807Philanthropy$377,500Health$136,161Human Services$43,500Animals$19,350

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetSYRACUSE UNIVERSITY: $3,000,000 over 6y, 0.1% of budgetDUKE UNIVERSITY: $551,000 over 7y, 0.0% of budgetTHE TEWAARATON FOUNDATION: $353,795 over 9y, 46% of budgetTEAM IMPACT INC: $215,000 over 4y, 1.1% of budgetPURCHASE COLLEGE FOUNDATION INC: $175,000 over 3y, 3.1% of budgetPLL ASSISTS INC: $130,000 over 3y, 47% of budgetDURHAM ACADEMY INC: $120,000 over 2y, 0.2% of budgetNorthwestern University: $100,000 over 2y, 0.0% of budgetATHLETES WHO CARE INC: $90,000 over 3y, 2.4% of budgetWASHINGTON INNER CITY LACROSSE FOUNDATION: $80,000 over 4y, 9.8% of budgetHARLEM LACROSSE AND LEADERSHIP CORPORATION: $66,307 over 5y, 0.2% of budgetFOLDS OF HONOR EASTERN-PA-NJ-CHAPTER: $51,800 over 2y, 6.0% of budgetDARIEN COMMUNITY YOUNG MEN'S CHRISTIAN ASSOCIATION INC: $42,500 over 6y, 0.1% of budgetBRONX LACROSSE INC CO OTA: $25,000 over 1y, 1.0% of budgetThe Stamford Hospital: $22,500 over 3y, 0.0% of budgetChildren's Hospital Corporation: $16,061 over 2y, 0.0% of budgetDARIEN FIRE DEPARTMENT INC: $15,000 over 3y, 1.8% of budgetPAUL RABIL FOUNDATION INC: $15,000 over 2y, 13% of budgetSOCIAL TEES ANIMAL RESCUE FOUNDATION IN: $14,200 over 1y, 2.2% of budgetALBANY FIREWOLVES FOUNDATION INC: $10,500 over 1y, 12% of budgetDARIEN POLICE ASSOCIATION INC: $10,000 over 2y, 1.8% of budgetTHE DARIEN FOUNDATION INC: $10,000 over 1y, 1.9% of budgetMS HOPE FOR A CURE INC: $10,000 over 1y, 1.7% of budgetDARIEN LIBRARY INC: $8,360 over 4y, 0.1% of budgetMARK GLICINI MEANINGFUL GROWTH FOUNDATION CORP: $7,500 over 2y, 0.4% of budgetHACKERS FOR HOPE INC: $6,000 over 2y, 1.5% of budgetFROSTED FACES FOUNDATION INC: $5,150 over 1y, 0.2% of budgetTHE WATERSHED INSTITUTE INC: $5,000 over 1y, 0.2% of budgetGOFUNDMEORG: $5,000 over 1y, 0.0% of budgetLANDON SCHOOL: $5,000 over 1y, 0.0% of budgetAmerican Heart Association Inc: $5,000 over 1y, 0.0% of budgetV G C FOUNDATION INC: $2,000 over 4y, 0.3% of budgetTHE EDGARTOWN FIREMEN'S ASSOCIATIONINC: $1,000 over 1y, 0.7% of budgetST BALDRICK'S FOUNDATION INC: $1,000 over 1y, 0.0% of budgetHUMAN NEEDS FOOD PANTRY INC: $500 over 1y, 0.0% of budgetBOATHOUSE FOUNDATION INC: $300 over 1y, 0.2% of budgetDARIEN NATURE CENTER INC: $250 over 1y, 0.0% of budgetSwim Across America Inc: $200 over 2y, 0.0% of budgetWILLIAM RAVEIS CHARITABLE FUND INC: $100 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.

  • Who funds SYRACUSE UNIVERSITY ↗
  • Who funds DUKE UNIVERSITY ↗
  • Who funds THE TEWAARATON FOUNDATION ↗
  • Who funds TEAM IMPACT INC ↗
  • Who funds PURCHASE COLLEGE FOUNDATION INC ↗
  • Who funds OLD CHATHAM GOLF CLUB ↗
  • Who funds PLL ASSISTS INC ↗
  • Who funds DURHAM ACADEMY INC ↗
  • Who funds Northwestern University ↗
  • Who funds ATHLETES WHO CARE INC ↗
  • Who funds WASHINGTON INNER CITY LACROSSE FOUNDATION ↗
  • Who funds HARLEM LACROSSE AND LEADERSHIP CORPORATION ↗
  • Who funds FERRARO FAMILY FOUNDATION INCORPORATED ↗
  • Who funds FOLDS OF HONOR EASTERN-PA-NJ-CHAPTER ↗
  • Who funds HEADSTRONG FOUNDATION ↗
  • Who funds DARIEN COMMUNITY YOUNG MEN'S CHRISTIAN ASSOCIATION INC ↗
  • Who funds ST JOHN RESCUE INC ↗

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 Meredith and Whitney George Family Foundation IncCT17.8× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Meredith and Whitney George Family Foundation Inc · 522 Foundation Inc · The Roxe Foundation · Robert & Diana Borman Family Charitable Foundation · The Goodnow Fund · Fairfield County's Community Foundation Inc · The Goldman Sachs Charitable Gift Fund · The Pfizer Foundation Inc · Ibm International Foundation · The Bank of America Charitable Foundation Inc · National Philanthropic Trust · Baird 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 The Catherine Jefferson Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Catherine Jefferson Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 110%3%13%28%50%funder's share of their income ↑0%8%15%22%30%share of the org’s income from government →median 3%
  • Children's Hospital Corporation: 10% of income from government
  • The Watershed Institute Inc: 3% of income from government
  • Darien Nature Center Inc: 0% of income from government
  • The Stamford Hospital: 0% of income from government
no gov moneyreceives it· size = income
11get 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 · 0–30%
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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The Catherine Jefferson Foundation Inc?

Find your warmest path to The Catherine Jefferson Foundation Inc through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

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 117 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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