· Private foundation
The Tianaderrah Foundation (NY)
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 FY2019–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k47 grants · $164k
- $10k–50k52 grants · $957k
- $50k–250k17 grants · $1.5M
- $250k+3 grants · $825k
| Recipient | Amount |
|---|---|
| Glimmerglass Festival | $300,000 |
| Hoosac School | $275,000 |
| Hyde Hall Inc | $250,000 |
| The Farmers Museum | $200,000 |
| The Delaware Company | $160,000 |
| Hunter College Foundation | $150,000 |
| Delaware County Historical Assoc | $100,000 |
| The Fenimore Art Museum | $100,000 |
| Massachusetts Institute of Technology | $100,000 |
| The GOG Foundation | $100,000 |
| Forbes House Museum | $84,000 |
| Seward House Museum | $75,000 |
| Community Foundation of Ostego County | $55,000 |
| Shaker Museum and Library | $50,000 |
| Preservation League of New York State | $50,000 |
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.
Your human-services grants (FY19–24, $235k) land where the poverty rate runs at 15%, against an area that typically sits at 11%. 100% 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 +43% since the first grant, against -11% for the ones you funded once.
128 repeat relationships — 100 still active in FY2024, 28 since wound down; 16 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, 86% of grant dollars renewed an existing relationship; $447k 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
- HSHOOSAC SCHOOL6× · 2019–2024 · $1.6M · revenue +61%
- SBSWEET BRIAR INSTITUTE3× · 2022–2024 · $1.1M · revenue +3%
- TFTHE FARMERS MUSEUM INC6× · 2019–2024 · $975k · revenue +140%
Funded once
The Trustees of Princeton Universityone grant, 2021 · $5.0M · revenue -34%- TMThe Massachusetts General Hospitalone grant, 2023 · $125k
DOROTHEA DIX PARK CONSERVANCYone grant, 2023 · $100k · revenue -54%
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 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.
Preservation & maintenance collection
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 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."
Educate the community on the history of newburgh bay and the highlands
The purpose of the montauk historical society is to collect, restore, preserve and display historically significant buildings, objects and writings and to preserve and share the history and cultures of montauk and the east end for this and…
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.
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 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…
Museum for the acquisition, conservation and exhibition of historical artifacts of st. lawrence county, new york.
The founding mission of the new-york historical society ("the new york historical "tnyh") is to collect, preserve, and interpret, for the broadest possible public, material relevant to the history of the united states in general and of new…
Museum provides general public with displays and information about the history of Fulton County New York.
For reference, the grantee most central to the portfolio’s shape is Genesee Country Museum and the most unlike its peers is The Tom Gold Dance Foundation 51 West 81ST Street. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 38 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) — 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.
107 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. 107 of the 168 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 Trustees of Princeton University ↗
- Who funds HOOSAC SCHOOL ↗
- Who funds SWEET BRIAR INSTITUTE ↗
- Who funds THE FARMERS MUSEUM INC ↗
- Who funds HYDE HALL INC ↗
- Who funds THE HUNTER COLLEGE FOUNDATION INC ↗
- Who funds LANDMARKS SOCIETY OF GREATER UTICA INC ↗
- Who funds FENIMORE ART MUSEUM ↗
- Who funds Massachusetts Institute of Technology ↗
- Who funds MANHATTAN COUNTRY SCHOOL INC ↗
- Who funds The Delaware Company Inc ↗
- Who funds PRESERVATION LEAGUE OF NEW YORK STATE ↗
- Who funds SHAKER MUSEUM AND LIBRARY ↗
- Who funds MUSEUM OF THE CITY OF NEW YORK ↗
- Who funds Seward House Museum ↗
- Who funds DELAWARE COUNTY HISTORICAL ASSOCIATION ↗
- Who funds OTSEGO LAND TRUST ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds TIME AND THE VALLEYS MUSEUM ↗
- Who funds Hartwick College ↗
- Who funds FAMILY PLANNING OF SOUTH CENTRAL NEW YORK INC ↗
- Who funds American Liver Foundation ↗
- Who funds New York University ↗
- Who funds COMMUNITY FOUNDATION OF OTSEGO COUNTY INC ↗
- Who funds MUNSON-WILLIAMS-PROCTOR ARTS INSTITUTE ↗
- Who funds Bethel Woods Center for the Arts Inc ↗
- Who funds PRINCETON PROSPECT FOUNDATION ↗
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 Community Foundation for South Central New York Inc · A Lindsay & Olive B O'Connor Foundation Inc · The William G Pomeroy Foundation · Allstadt Hardin Foundation · JM McDonald Foundation Inc · Central New York Community Foundation Inc · The Nycm Foundation · The Community Foundation for the Greater Capital Region Inc · Greater Hudson Heritage Network · Preservation League of New York State · Corning Incorporated Foundation · Price Chopper's Golub 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 Tianaderrah Foundation (NY) 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.
- Captain Forbes House Museum — 100% of income from government
- Massachusetts Institute of Technology — 35% of income from government
- Massachusetts Historical Society — 22% of income from government
- The Trustees of Princeton University — 11% of income from government
- Society for the Preservation of New Engl — 2% of income from government
- Friends of the Public Garden Inc — 1% 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 Tianaderrah Foundation (NY)?
Find your warmest path to The Tianaderrah Foundation (NY) 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.