· Private foundation
The Gilbert Mackay Foundation
Its FY2024 filing reports that it accepted unsolicited grant applications.
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 $10k16 grants · $61k
- $10k–50k1 grant · $15k
| Recipient | Amount |
|---|---|
| THE MADOO CONSERVANCY | $15,000 |
| SPRINGSIDE CHESTNUT HILL ACADEMY THE SCH FUND | $6,000 |
| THE HOTCHKISS FUND | $6,000 |
| CHESTNUT HILL CONSERVANCY | $5,000 |
| FRIENDS OF THE HIGH LINE | $5,000 |
| BRONX MUSEUM OF THE ARTS | $5,000 |
| WOODMERE ART MUSEUM INC | $5,000 |
| GRACE CHURCH IN NEW YORK | $5,000 |
| WOMEN'S HOUSING AND ECONOMIC DEVELOPMENT CORP (WHEDCO) | $4,000 |
| WESTON PLAYHOUSE THEATRE | $3,000 |
| BART J RUGGIERE ADAPTIVE SPORTS CENTER | $3,000 |
| FRIENDS OF THE WISSAHICKON INC | $3,000 |
| THE DRAWING CENTER | $2,500 |
| HAMPTON LIBRARY IN BRIDGEHAMPTON INC | $2,000 |
| LIBRARY OF AMERICA | $2,000 |
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 17%, against an area that typically sits at 13%. 70% of your 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.
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.
22 repeat relationships — 15 still active in FY2024, 7 since wound down; 2 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, 77% of grant dollars renewed an existing relationship; $18k 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
- CHChestnut Hill Conservancy6× · 2017–2024 · $25k · revenue +10%
- TLTHE LITERARY CLASSICS OF THE US INC D/B/A LIBRARY OF AMERICA6× · 2017–2024 · $18k · revenue +3%
- WAWOODMERE ART MUSEUM2× · 2023–2024 · $10k · revenue +88%
Funded once
- WMWHITNEY MUSEUM OF AMERICAN ARTgraduatedone grant, 2022 · $10k · revenue +74%
- NYNEW YORK CITY BALLET INCone grant, 2017 · $5k · revenue +21%
- WIWELLNESS IN THE SCHOOLS INCgraduatedone grant, 2022 · $5k · revenue +131%
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 mission of the brooklyn institute of arts and sciences, d/b/a brooklyn museum (the "museum") is to bring people together through art and experiences that inspire celebration, compassion, courage, and the will to act. (see schedule o).
The new york botanical garden is a museum of plants and a scientific research center devoted to the study of plants and their uses. it is the garden's mission to improve public understanding of the natural world, horticulture, and the…
The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
The Museum of Modern Art is a private, non-profit institution chartered by the State of New York Department of Education in 1929 to foster public awareness of modern and contemporary art. (Continued in Schedule O)
A center for exhibitions, information, and documentation about living artists since 1977, which continues to be a place of experimentation and a hub of new art and new ideas.
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 Frick Collection (the "Collection") operates an internationally recognized art museum and library program for the inspiration and enjoyment of the public and for the advancement of the study of fine arts and kindred subjects.
Situated on the banks of the hudson river in yonkers, new york, the hudson river museum's mission is to engage, inspire, and connect diverse communities through the power of the arts, sciences, and history.
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.
The mission of the national academy of design is to promote the fine arts in america through exhibition and education.
For reference, the grantee most central to the portfolio’s shape is Women's Housing & Economic Development Corporation and the most unlike its peers is Bart J Ruggiere Adaptive Sports Center Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
18 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. 18 of the 30 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 The Bronx Museum of the Arts ↗
- Who funds Chestnut Hill Conservancy ↗
- Who funds THE LITERARY CLASSICS OF THE US INC D/B/A LIBRARY OF AMERICA ↗
- Who funds FRIENDS OF THE HIGH LINE INC ↗
- Who funds MADOO CONSERVANCY INC ↗
- Who funds WHITNEY MUSEUM OF AMERICAN ART ↗
- Who funds WOODMERE ART MUSEUM ↗
- Who funds WOMEN'S HOUSING & ECONOMIC DEVELOPMENT CORPORATION ↗
- Who funds THE FRIENDS OF THE WISSAHICKON INC ↗
- Who funds BRIDGEHAMPTON VOLUNTEER FIRE DEPARTMENT ↗
- Who funds THE WESTON PLAYHOUSE THEATER ↗
- Who funds Bart J Ruggiere Adaptive Sports Center Inc ↗
- Who funds NEW YORK CITY BALLET INC ↗
- Who funds WELLNESS IN THE SCHOOLS INC ↗
- Who funds HAMPTON LIBRARY IN BRIDGEHAMPTON INC ↗
- Who funds THE DRAWING CENTER INC ↗
- Who funds NEW YORK SCHOOL OF THE ARTS INC ↗
- Who funds HISPANIC SOCIETY OF AMERICA ↗
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 New York Community Trust · National Philanthropic Trust · Vanguard Charitable Endowment Program · The Pfizer Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · American Online Giving Foundation Inc · Amazonsmile Foundation
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 The Gilbert Mackay Foundation 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.
- The Weston Playhouse Theater — 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.
Warm introductions · Powered by PlinthPlus
How do I get to The Gilbert Mackay Foundation?
Find your warmest path to The Gilbert Mackay Foundation 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.