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R T Vanderbilt Trust Agy Main at a glance

· Private foundation

R T Vanderbilt Trust Agy Main

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.

$531k
Granted FY2024still arriving
50
Grants FY2024still arriving
14
States reached
$112k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0194% classified

What it funded, over time

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

Environment$667kArts & Culture$522kEducation$477kHealth$419kAnimals$159kYouth Development$122kReligion$108kHuman Services$49kOther$0
02FY2024 · 50 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k38 grants · $109k
  • $10k–50k10 grants · $245k
  • $50k–250k2 grants · $177k
$4,000
Median grant
14
States reached
$7.0M
Total assets
Largest grants
RecipientAmount
THE CONNECTICUTT AUDUBON SOCIETY$111,500
GREENWICH COUNTRY DAY SCHOOL$65,000
MAYO CLINIC ROCHESTER$45,000
PLANNED PARENTHOOD FEDERATION OF AMERICA$41,350
AMERICAN FRIENDS OF WIGMORE HALL INC$37,146
GREENWICH HISTORICAL SOCIETY INC$31,000
MUSIC FOR YOUTH INC$22,000
GREENWICH HOSPITAL$20,000
GALAPAGOS CONSERVANCY INC$19,000
ROLLINS COLLEGE$10,000
SAINT MATTHEW CHURCH$10,000
YWCA GREENWICH CONNECTICUT INC$10,000
CONNECTICUT CANCER FOUNDATION INC$7,800
HERITAGE OF WEST NYACK$7,500
CHATHAM ROCK ISLAND INC$7,500
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 (FY17–24, $65k) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 62% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%SKYS THE LIMIT FUND: $3k → 8%AMERICAN RED CROSS: $19k → 14%CHALLENGE ASPEN: $1k → 6%MISSION PRE-BORN INC: $2k → 16%MURRAY CALLOWAY NEED LINE ASSOC: $2k → 19%HOSPICE OF SOUTHERN MAINE: $2k → 7%SKYS THE LIMIT FUND: $3k → 8%CHALLENGE ASPEN: $1k → 6%HOSPICE OF SOUTHERN MAINE: $2k → 7%SKYS THE LIMIT FUND: $3k → 8%AMERICAN RED CROSS: $4k → 11%MURRAY CALLOWAY NEED LINE ASSOC: $1k → 19%HOSPICE OF SOUTHERN MAINE: $2k → 7%SKYS THE LIMIT FUND: $3k → 8%HOSPICE OF SOUTHERN MAINE: $2k → 7%HOSPICE OF SOUTHERN MAINE: $2k → 7%MURRAY CALLOWAY NEED LINE ASSOC: $500 → 19%HOSPICE OF SOUTHERN MAINE: $1k → 7%MURRAY CALLOWAY NEED LINE ASSOC: $500 → 19%MURRAY CALLOWAY NEED LINE ASSOC: $500 → 19%MURRAY CALLOWAY NEED LINE ASSOC: $500 → 19%SCOTTY FUND INC: $350 → 9%YWCA GREENWICH CONNECTICUT INC: $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

ME
MN
NY
SD
IN
OH
CT
CA
CO
KY
VA
DE
AZ
NC
SC
DC
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.

98%of every dollar goes to organizations it has funded before.
$2.5M · 63 repeat orgs$56k to everyone else

Grantees it renews have grown median revenue +35% since the first grant, against +21% for those funded once.

63 repeat relationships: 41 still active in FY2024, 22 since wound down; 7 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

63
12

Total granted

$2.5M
$26k

Median revenue growth · since first grant

+35%
+21%

Still filing today

70%
58%

New vs renewed · share of each year

In FY2024, 94% of grant dollars renewed an existing relationship; $30k went to new ones.

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

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

’17’19’21’22’23’24
EducationHuman ServicesAnimalsArts & CultureHealthRecreation & SportsOther
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

  • GC
    GREENWICH COUNTRY DAY SCHOOL INC
    6× · 2017–2024 · $264k · revenue +182%
  • PLANNED PARENTHOOD FEDERATION OF AMERICA INC
    6× · 2017–2024 · $248k · revenue +12%
  • AF
    AMERICAN FRIENDS OF WIGMORE HALL INC
    5× · 2019–2024 · $105k · revenue +237% · 60% of their budget

Funded once

  • TS
    THE SPIRE SCHOOL
    one grant, 2022 · $10k
  • RR
    RIVERBROOK REGIONAL YMCA
    one grant, 2021 · $5k
  • MP
    Mission Pre-Born Inc
    one grant, 2023 · $2k · revenue 0%
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 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
3
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
4
Bridgeport Hospital

To operate an acute care hospital in bridgeport, connecticut for the care and treatment of persons suffering from disease or other physical or mental conditions without regard to race, color, creed, sex, age or ability to pay.

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
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
7
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
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
Saint Anselm College

Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…

Education
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
University Associates in Obstetrics and Gynecology University Faculty Pract ice Corporation

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

Health
12
The Adirondack Council Inc

The adirondack council ensures the ecological integrity (clean water and air, wildlife habitat, etc.), wild character (solitude, scenic beauty, etc.), and vibrant communities of new york's six-million-acre adirondack park. the adirondack…

Environment
How this is measured
The grantee most central to the portfolio’s shape is Greenwich Historical Society Inc; the most unlike its peers is Amogerone Volunteer Fire Co #1 Inc. 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

59 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. 59 of the 84 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)
59/59
Grantees still filing
46/59
Grew since first funded

Where the money sits, by cause and then by grantee

THE CONNECTICUTT AUDUBON SOCIETY: $666,210 · OtherTHE CONNECTICUTT AUDUBON SOCIETYGALAPAGOS CONSERVANCY INC: $102,000 · OtherGALAPAGOS CONSERVANCY INCSAINT MATTHEW CHURCH: $60,000 · OtherSAINT MATTHEW CHURCHHOLY FAMILY PARISH: $45,500 · Other+37 more: $202,050 · Other+37 moreGREENWICH HISTORICAL SOCIETY INC: $357,000 · Arts & CultureGREENWICH HISTORICAL SOCIE…Music for Youth Inc: $122,000 · Arts & CultureMusic for Youth IncAMERICAN FRIENDS OF WIGMORE HALL INC: $105,266 · Arts & CultureAMERICAN FRIENDS OF WIGMOR…+5 more: $22,000 · Arts & CultureGREENWICH COUNTRY DAY SCHOOL INC: $264,250 · EducationGREENWICH COUNTRY D…EAGLE HILL FOUNDATION INC: $100,000 · EducationEAGLE HILL FOUNDATI…ROLLINS COLLEGE: $25,000 · EducationROLLINS COLLEGE+8 more: $61,000 · Education+8 morePLANNED PARENTHOOD FEDERATION OF AMERICA INC: $248,100 · HealthPLANNED PARENTHO…MAYO CLINIC: $84,000 · HealthMAYO CLINICGREENWICH HOSPITAL: $35,250 · HealthGREENWICH HOSPIT…+2 more: $5,500 · HealthAmerican National Red Cross & Its Constituent Chapters and Branches: $22,740 · Human ServicesCatholic Charities Maine: $20,000 · Human ServicesSKY'S THE LIMIT FUND: $12,000 · Human ServicesHospice of Southern Maine: $11,000 · Human ServicesYWCA GREENWICH CONNECTICUT INC: $10,000 · Human ServicesMURRAY CALLOWAY NEED LINE ASSOCIATION INC: $5,000 · Human Services+3 more: $4,350 · Human ServicesWildlife Conservation Society: $12,500 · AnimalsCHRISTINES CRITTERS INC: $5,000 · AnimalsAMERICAN WILD HORSE PRESERVATION CAMPAIGN: $5,000 · AnimalsANIMAL REFUGE LEAGUE OF GREATER PORTLAND: $4,000 · AnimalsWILDLIFE IN CRISIS INC: $2,000 · AnimalsWOLF CONSERVATION CENTER INC: $1,250 · Animals+3 more: $3,000 · AnimalsCHATHAM ROCK ISLAND INC: $11,500 · Environment
Other$1,075,760Arts & Culture$606,266Education$450,250Health$372,850Human Services$85,090Animals$32,750Environment$11,500

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 budgetGREENWICH HISTORICAL SOCIETY INC: $357,000 over 6y, 3.3% of budgetGREENWICH COUNTRY DAY SCHOOL INC: $264,250 over 6y, 0.1% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $248,100 over 6y, 0.0% of budgetMusic for Youth Inc: $122,000 over 6y, 57% of budgetAMERICAN FRIENDS OF WIGMORE HALL INC: $105,266 over 5y, 60% of budgetGALAPAGOS CONSERVANCY INC: $102,000 over 6y, 0.4% of budgetEAGLE HILL FOUNDATION INC: $100,000 over 2y, 0.3% of budgetMAYO CLINIC: $84,000 over 6y, 0.0% of budgetGREENWICH HOSPITAL: $35,250 over 6y, 0.0% of budgetROLLINS COLLEGE: $25,000 over 6y, 0.0% of budgetCAMPING AND EDUCATION FOUNDATION: $25,000 over 6y, 0.1% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $22,740 over 2y, 0.0% of budgetCatholic Charities Maine: $20,000 over 6y, 0.0% of budgetCONNECTICUT CANCER FOUNDATION INC: $17,800 over 3y, 0.4% of budgetWildlife Conservation Society: $12,500 over 6y, 0.0% of budgetUniversity of Notre Dame du Lac: $12,000 over 6y, 0.0% of budgetSKY'S THE LIMIT FUND: $12,000 over 4y, 0.4% of budgetCHATHAM ROCK ISLAND INC: $11,500 over 2y, 4.1% of budgetSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION: $11,000 over 4y, 0.0% of budgetHospice of Southern Maine: $11,000 over 6y, 0.0% of budgetTHE RIDGEFIELD PLAYHOUSE FOR MOVIES AND THE PERFORMING ARTS INC: $10,500 over 4y, 0.0% of budgetYWCA GREENWICH CONNECTICUT INC: $10,000 over 1y, 0.1% of budgetMiddle Patent Rural Cemetery Association Inc: $9,500 over 6y, 3.3% of budgetST LUKE'S FOUNDATION INC: $8,500 over 6y, 0.0% of budgetSILVER SHIELD ASSOCIATION EDUCATION FUND INC: $7,500 over 5y, 2.6% of budgetGREENWICH ACADEMY INC: $7,000 over 4y, 0.0% of budgetUNIVERSITY OF DENVER: $5,500 over 4y, 0.0% of budgetNEWTOWN HISTORICAL SOCIETY INC: $5,000 over 5y, 5.0% of budgetMURRAY CALLOWAY NEED LINE ASSOCIATION INC: $5,000 over 6y, 0.5% of budgetCHRISTINES CRITTERS INC: $5,000 over 5y, 2.2% of budgetANIMAL CANCER FOUNDATION: $5,000 over 1y, 1.7% of budgetBRUNSWICK SCHOOL INC: $5,000 over 5y, 0.0% of budgetAmogerone Volunteer Fire Co #1 Inc: $5,000 over 6y, 4.6% of budgetAMERICAN WILD HORSE PRESERVATION CAMPAIGN: $5,000 over 1y, 0.1% of budgetRidgefield Library Association Inc: $4,500 over 2y, 0.1% of budgetANIMAL REFUGE LEAGUE OF GREATER PORTLAND: $4,000 over 1y, 0.1% of budgetTREETOPS CHAMBER MUSIC SOCIETY INC: $4,000 over 2y, 7.5% of budgetBACKCOUNTRY CONCERTS INC dba BACKCOUNTRY JAZZ: $4,000 over 3y, 0.7% of budgetBETHEL VOLUNTEER FIRE DEPT INC: $3,700 over 6y, 0.1% of budgetSOUP FOR THE SOUL ORG INC: $2,500 over 4y, 0.5% of budgetMission Pre-Born Inc: $2,000 over 1y, 0.0% of budgetARIZONA-SONORA DESERT MUSEUM: $2,000 over 2y, 0.0% of budgetCHALLENGE ASPEN: $2,000 over 2y, 0.0% of budgetADAPTIVE SPORTS FOUNDATION INC: $1,500 over 2y, 0.0% of budgetHYDE HALL INC: $1,500 over 2y, 0.1% of budgetMEALS ON WHEELS OF RIDGEFIELD INC: $1,500 over 2y, 0.1% of budgetWOLF CONSERVATION CENTER INC: $1,250 over 2y, 0.0% of budgetFAMILY CENTERS INC: $1,000 over 2y, 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 GREENWICH HISTORICAL SOCIETY INC ↗
  • Who funds GREENWICH COUNTRY DAY SCHOOL INC ↗
  • Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
  • Who funds Music for Youth Inc ↗
  • Who funds AMERICAN FRIENDS OF WIGMORE HALL INC ↗
  • Who funds GALAPAGOS CONSERVANCY INC ↗
  • Who funds EAGLE HILL FOUNDATION INC ↗
  • Who funds MAYO CLINIC ↗
  • Who funds GREENWICH HOSPITAL ↗
  • Who funds ROLLINS COLLEGE ↗
  • Who funds CAMPING AND EDUCATION FOUNDATION ↗
  • Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
  • Who funds Catholic Charities Maine ↗
  • Who funds CONNECTICUT CANCER FOUNDATION INC ↗
  • Who funds Wildlife Conservation Society ↗
  • Who funds University of Notre Dame du Lac ↗
  • Who funds SKY'S THE LIMIT FUND ↗
  • Who funds CHATHAM ROCK ISLAND INC ↗
  • Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
  • Who funds Hospice of Southern Maine ↗
  • Who funds THE RIDGEFIELD PLAYHOUSE FOR MOVIES AND THE PERFORMING ARTS INC ↗
  • Who funds YWCA GREENWICH CONNECTICUT INC ↗
  • Who funds Middle Patent Rural Cemetery Association Inc ↗
  • Who funds ST LUKE'S FOUNDATION INC ↗
  • Who funds SILVER SHIELD ASSOCIATION EDUCATION FUND INC ↗
  • Who funds GREENWICH ACADEMY INC ↗
  • Who funds UNIVERSITY OF DENVER ↗
  • Who funds NEWTOWN HISTORICAL SOCIETY INC ↗
  • Who funds MURRAY CALLOWAY NEED LINE ASSOCIATION INC ↗
  • Who funds CHRISTINES CRITTERS 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 Ayco Charitable F…Fairfield County's Co…Synchrony FoundationConnecticut Humanitie…Ge Aerospace Foundati…Ridgefield Thrift Sho…Alexander Family Foun…Gs Donor Advised Phil…National Philanthropi…Jewish Communal FundAmica Companies Found…The Bessemer Giving F…
The Ayco Charitable FoundationNY18.4× affinity11 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Ayco Charitable Foundation · Fairfield County's Community Foundation Inc · Synchrony Foundation · Connecticut Humanities Council Inc · Ge Aerospace Foundation · Ridgefield Thrift Shop Inc · Alexander Family Foundation Inc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · National Philanthropic Trust · Jewish Communal Fund · Amica Companies Foundation · The Bessemer Giving Fund

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 R T Vanderbilt Trust Agy Main funds: left to right is the share of its income from government, bottom to top the share from R T Vanderbilt Trust Agy Main. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 200%4%15%34%60%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →median 1%
  • Abilis Inc: 74% of income from government
  • Family Centers Inc: 20% of income from government
  • The Ridgefield Playhouse for Movies and the Performing Arts Inc: 1% of income from government
  • Rollins College: 0% of income from government
  • St Luke's Foundation Inc: 0% of income from government
  • Greenwich Hospital: 0% of income from government
no gov moneyreceives it· size = income
20get no government money at all
8report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
⤢ axis zoomed · 0–90%
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 84 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 R T Vanderbilt Trust Agy Main’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