· Private foundation
Robert David Lion Gardiner Foundation Inc
Its FY2024 filing reports that it accepted unsolicited grant applications.
What you funded, over time
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 41% of ROBERT DAVID LION GARDINER FOUNDATION INC’s grantee dollars fall outside its nine largest cause areas, whether because the recipient carries no IRS cause code or because its cause sits in the long tail. A chart would be mostly one residual band and misrepresent the portfolio.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k41 grants · $142k
- $10k–50k23 grants · $440k
- $50k–250k16 grants · $1.3M
- $250k+11 grants · $4.6M
| Recipient | Amount |
|---|---|
| NEW YORK HISTORICAL SOCIETY | $1,500,000 |
| COLD SPRING HARBOR LABORATORY | $500,000 |
| COOPER UNION FOR THE ADV OF SCIENCE | $392,000 |
| PBS FOUNDATION | $333,334 |
| NATIONAL TRUST FOR HISTORIC PRESV | $333,333 |
| GREEN-WOOD HISTORIC FUND | $250,000 |
| THE HISTORY MAKERS | $250,000 |
| LAGUARDIA COMMUNITY COLLEGE FND | $250,000 |
| GILDER LEHRMAN INST OF AMERICAN HIS | $250,000 |
| COOPER UNION FOR THE ADV OF SCIENCE | $250,000 |
| LONG ISLAND UNIVERSITY | $250,000 |
| MYSTIC SEAPORT MUSEUM INC | $197,534 |
| ST THOMAS AQUINAS COLLEGE | $114,812 |
| NEW YORK HISTORICAL SOCIETY | $110,844 |
| BROOKLYN PUBLIC LIBRARY | $105,500 |
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.
Dollar for dollar, your grants (FY17–24) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 51% of your dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.
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 +26% since the first grant, against +25% for the ones you funded once.
101 repeat relationships — 54 still active in FY2024, 47 since wound down; 32 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, 74% of grant dollars renewed an existing relationship; $1.7M 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
- LILONG ISLAND UNIVERSITY8× · 2017–2024 · $3.0M · revenue +0%
PBS FOUNDATION6× · 2017–2024 · $2.3M · revenue ×12- MUMOLLOY UNIVERSITY4× · 2017–2020 · $1.5M · revenue +28%
Funded once
- NTNATIONAL TRUST FOR HISTORICone grant, 2023 · $333k
- LMLT MICHAEL MURPHY NAVAL SEAL MUSEUone grant, 2018 · $300k
- CUCOOPER UNION FOR THE ADVANCEMENTone grant, 2020 · $254k
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 museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."
Founded in 1881 the Staten Island Museum engages visitors with interdisciplinary exhibitions, public programs, and educational activities for all ages. It is the mission of the Staten Island Museum to spark curiosity and generate…
The long island museum is dedicated to inspiring people of all ages with an understanding and enjoyment of american art, history and carriages as expressed through the heritage of long island and its diverse communities.
Educate the community on the history of newburgh bay and the highlands
The mission of the Sharon Historical Society is to make all people aware of our history by linking the past with the present in order to inform them of our future. The Sharon Historical Society exists to inspire people's understanding that…
To operate and maintain suny maritime museum
The organization was formed to safeguard and share existing and future collections related to the social, cultural, and economic history of the high peaks adirondack region in and around the township of newcomb in essex county, new york.
The Museum's mission is to encourage and promote the appreciation of fine art to people in its surrounding communities and beyond. The Museum is dedicated to fostering a deeper understanding of the arts, with particular emphasis on the…
Preservation & maintenance collection
Interpretation of regional geology, Native American culture and archaeology and Long Island natural history.
For reference, the grantee most central to the portfolio’s shape is Suffolk County Vanderbilt Museum and the most unlike its peers is Thomas Moran Trust. 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 44 years old; the field is 16. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 2% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 11% 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.
115 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. 115 of the 202 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
Showing your 200 largest grantees by grant value.
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 LONG ISLAND UNIVERSITY ↗
- Who funds THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ↗
- Who funds New York Historical Society ↗
- Who funds PBS FOUNDATION ↗
- Who funds MOLLOY UNIVERSITY ↗
- Who funds New York University ↗
- Who funds THE BROOKLYN HISTORICAL SOCIETY ↗
- Who funds COLD SPRING HARBOR LABORATORY ↗
- Who funds IONA UNIVERSITY ↗
- Who funds THE GREEN-WOOD HISTORIC FUND INC ↗
- Who funds WEBB INSTITUTE ↗
- Who funds THE ROSLYN LANDMARK SOCIETY INC ↗
- Who funds MONTAUK HISTORICAL SOCIETY ↗
- Who funds FIREBOAT FIRE FIGHTER MUSEUM ↗
- Who funds THE HISTORYMAKERS ↗
- Who funds Three Village Historical Society ↗
- Who funds THE FRIENDS OF RAYNHAM HALL INC ↗
- Who funds Old Westbury Gardens Inc ↗
- Who funds YAPHANK HISTORICAL SOCIETY ↗
- Who funds UNIVERSITY OF ROCHESTER ↗
- Who funds PRESERVATION LEAGUE OF NEW YORK STATE ↗
- Who funds GREATER HUDSON HERITAGE NETWORK ↗
- Who funds THE NORTH SHORE LAND ALLIANCE INC ↗
- Who funds THE GILDER LEHRMAN INSTITUTE OF AMERICAN HISTORY ↗
- Who funds OYSTER BAY RAILROAD MUSEUM ↗
- Who funds ST THOMAS AQUINAS COLLEGE ↗
- Who funds SUFFOLK COUNTY HISTORICAL SOCIETY ↗
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: Greater Hudson Heritage Network · The William G Pomeroy Foundation · Preservation League of New York State · The New York Community Trust · The Claire Friedlander Family Foundation · New York Community Bank Foundation · New York Council for the Humanities · Peggy N & Roger G Gerry Charitable · Charles and Helen Reichert Family Foundation Inc · The McGrath Family Charitable Foundation · Frederic R Coudert Foundation · John C Dunphy Private Foundation Inc
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 Robert David Lion Gardiner Foundation Inc 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 or a single department — and drag the year to watch it move.
- Sea Education Association Inc — 12% of income from government
- Mystic Seaport Museum Inc — 5% of income from government
- Trustees of Boston College — 3% 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.
Warm introductions · Powered by PlinthPlus
How do I get to Robert David Lion Gardiner Foundation Inc?
Find your warmest path to Robert David Lion Gardiner 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.