· Private foundation
Fred and Gertrude Perlberg 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| LArche Long Island | $6,000 |
| The Foundation for Living Beauty | $5,800 |
| Antoines Fund | $5,000 |
| Immersive Art Collective | $3,500 |
| Horticultural Alliance - Hamptons | $1,640 |
| University of Michigan | $1,500 |
| St Josephs Indian School | $1,500 |
| Ronald McDonald House of Wake Medic | $1,000 |
| Individual grant recipient | $1,000 |
| Disabled Veterans National Found | $1,000 |
| National Foundation for Cancer | $1,000 |
| Macular Degeneration Research | $1,000 |
| Ronald McDonald House of Nashville | $1,000 |
| Shinnecock Kelp Farmers | $1,000 |
| Garden Club of East Hampton | $850 |
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 (FY17–23, $2k) land where the poverty rate runs at 15%, against an area that typically sits at 11%. 88% 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 +22% since the first grant, against +14% for the ones you funded once.
41 repeat relationships — 18 still active in FY2025, 23 since wound down; 12 grantees were first funded in FY2025 (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 FY2025, 64% of grant dollars renewed an existing relationship; $14k 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
- HIHOLE IN THE WALL GANG FUND INC5× · 2017–2024 · $27k · revenue +5%
- LLLARCHE LONG ISLAND INC4× · 2022–2025 · $12k · revenue +66%
- TFTHE FOUNDATION FOR LIVING BEAUTY DBA LIVING BEAUTY CANCER FOUNDATION3× · 2023–2025 · $11k · revenue +51%
Funded once
THE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCHgraduatedone grant, 2023 · $20k · revenue +60%- PLPENINSULA LIBRARY FRIENDS FOUNDATIONgraduatedone grant, 2018 · $10k · revenue +78%
- MFMothers for Judicial Accountabilityone grant, 2019 · $10k
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.
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
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 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…
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."
To preserve the unique character and natural resources of harvard.
The mission of the hudson river foundation is to inspire and inform action through science and engaging people to enhance the hudson river, estuary, and watershed (see schedule o).
Sfn's mission is to: 1. advance the understanding of the brain and the nervous system by bringing together scientists of all segments of neuroscience, by facilitating the integration of research directed at all levels of biological…
Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…
The mission of rhode island school of design, through its college and museum,is to educate its students and the public in the creation and (see schedule o)appreciation of works of art and design, to discover and transmit knowledge and to…
Advance science, engineering, and innovation throughout the world for the benefit of all. the world's largest multidisciplinary scientific society and a leading publisher of cutting-edge research through its science family of journals,…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The mission of the organization is to foster the development of creative individuals as writers and artists and to promote public appreciation of excellence in the literary and graphic arts by publishing a magazine containing fiction,…
For reference, the grantee most central to the portfolio’s shape is The Heritage Foundation and the most unlike its peers is Tennessee Medical Foundation 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 45 years old; the field is 18. You back the established end — and your money leans older still.
The field is 19% startups (under 5 years old) — 3% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 2% 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.
61 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. 61 of the 124 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 President and Fellows of Harvard College ↗
- Who funds THE AMERICAN AGORA FOUNDATION INC ↗
- Who funds HOLE IN THE WALL GANG FUND INC ↗
- Who funds THE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH ↗
- Who funds LARCHE LONG ISLAND INC ↗
- Who funds THE FOUNDATION FOR LIVING BEAUTY DBA LIVING BEAUTY CANCER FOUNDATION ↗
- Who funds PENINSULA LIBRARY FRIENDS FOUNDATION ↗
- Who funds ST GEORGE'S SCHOOL ↗
- Who funds Palos Verdes-South Bay Audubon Society ↗
- Who funds University of Michigan ↗
- Who funds SIMON WIESENTHAL CENTER INC ↗
- Who funds Vanderlip Heritage Fund Inc ↗
- Who funds CASA OF LOS ANGELES ↗
- Who funds DISABLED VETERANS NATIONAL FOUNDATION ↗
- Who funds ROSWELL PARK ALLIANCE FOUNDATION ↗
- Who funds TENNESSEE MEDICAL FOUNDATION INC ↗
- Who funds THE HERITAGE FOUNDATION ↗
- Who funds BAHAMAS HURRICANE RESTORATION FUND ↗
- Who funds ETC THEATRE COMPANY INC ↗
- Who funds ARTHRITIS FOUNDATION INC ↗
- Who funds THE GARDEN CLUB OF EAST HAMPTONINC ↗
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 Goldman Sachs Charitable Gift Fund · Mary Jane Hipp Brock Family Foundation · The Tapestry Foundation Inc · Jewish Communal Fund · The New York Community Trust · National Philanthropic Trust · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · Network for Good
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 Fred and Gertrude Perlberg 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.
- President and Fellows of Harvard College — 7% of income from government
- Wounded Warrior Project Inc — 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 Fred and Gertrude Perlberg Foundation Inc?
Find your warmest path to Fred and Gertrude Perlberg 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.