· 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k38 grants · $109k
- $10k–50k10 grants · $245k
- $50k–250k2 grants · $177k
| Recipient | Amount |
|---|---|
| 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 |
| YWCA GREENWICH CONNECTICUT INC | $10,000 |
| SAINT MATTHEW CHURCH | $10,000 |
| ROLLINS COLLEGE | $10,000 |
| CONNECTICUT CANCER FOUNDATION INC | $7,800 |
| HERITAGE OF WEST NYACK | $7,500 |
| CHATHAM ROCK ISLAND INC | $7,500 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your 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 your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +31% since the first grant, against +21% for the ones you 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
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 94% of grant dollars renewed an existing relationship; $30k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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
- GCGREENWICH COUNTRY DAY SCHOOL INC6× · 2017–2024 · $264k · revenue +182%
PLANNED PARENTHOOD FEDERATION OF AMERICA INC6× · 2017–2024 · $248k · revenue +12%- AFAMERICAN FRIENDS OF WIGMORE HALL INC5× · 2019–2024 · $105k · revenue +237% · 60% of their budget
Funded once
- TSTHE SPIRE SCHOOLone grant, 2022 · $10k
- RRRIVERBROOK REGIONAL YMCAone grant, 2021 · $5k
- CBCASCADE BROOKE SCHOOLone grant, 2017 · $2k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
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…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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…
For reference, the grantee most central to the portfolio’s shape is Greenwich Historical Society Inc and 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.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 42 years old; the field is 21. You back the established end — and your money leans older still.
The field is 18% startups (under 5 years old) — 4% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 10% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
59 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, 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; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your 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 CAMPING AND EDUCATION FOUNDATION ↗
- Who funds ROLLINS COLLEGE ↗
- 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 Hospice of Southern Maine ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- 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 AMERICAN WILD HORSE PRESERVATION CAMPAIGN ↗
- Who funds BRUNSWICK SCHOOL INC ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization R T Vanderbilt Trust Agy Main funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.
- 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
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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.