· Private foundation
Quarry Hill Fund
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 FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k5 grants · $11k
- $10k–50k1 grant · $25k
| Recipient | Amount |
|---|---|
| AMERICAN ACADEMY IN ROME | $25,000 |
| NATIONAL TRUST FOR HISTORIC PRES | $5,000 |
| WATERFORD CONCERT SERIES | $2,500 |
| OJAI VALLEY MUSEUM | $1,000 |
| YORK LAND TRUST | $1,000 |
| GREAT WORKS LAND TRUST | $1,000 |
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 (FY23–23, $1k) land where the poverty rate runs at 10%, against an area that typically sits at 9%. 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 +112% since the first grant, against +85% for the ones you funded once.
13 repeat relationships — 5 still active in FY2025, 8 since wound down; 1 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, 97% of grant dollars renewed an existing relationship; $1k 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
- AAAMERICAN ACADEMY IN ROME5× · 2020–2025 · $103k · revenue +57%
- WCWATERFORD CONCERT SERIES4× · 2022–2025 · $10k · revenue +310%
- HMHOLT-ELWELL MEMORIAL FOUNDATION OPERATING CAMP MOWGLIS2× · 2020–2024 · $8k · revenue +175%
Funded once
- OFOJAI FESTIVALS LTDgraduatedone grant, 2021 · $10k · revenue +35%
- EIEverScholar Incgraduatedone grant, 2020 · $3k · revenue ×17
- MMMETROPOLITAN MUSEUM OF ARTone grant, 2023 · $1k · revenue +19%
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 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.
Organization's mission statement true to the ambitious vision of its founder and her spirit of creative risk-taking, the mission of the isabella stewart gardner museum is: - to bring to life and preserve the rich historic collection; - to…
The only music festival in North America dedicated to Mozart, our mission embraces both performance of highest artistic excellence and cultivation of new potential audience, including young people to assure the future appreciation of great…
The mission is to enrich people's lives by providing a relevant, engaging cultural destination; to protect, preserve and restore the estate's architecture, landscape and collections; and to interpret the site's history in compelling and…
To preserve the unique character and natural resources of harvard.
The mission of the Bowdoin International Music Festival is to provide gifted young musicians from around the world with an opportunity to study with world-class artists, and to provide audiences with classical music performed to the…
Camerata Pacifica's mission is to affect positively how people experience live performances of classical music. The Organization will engage our audience intellectually and emotionally by presenting the finest performance of familiar and…
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."
The general purpose of the organization is to promote chamber music concerts to the general public.
The Roanoke Symphony Orchestra provides a professional symphony orchestra of artistic excellence and integrity to enrich lives, to educate, and to entertain diverse audiences in western Virginia with the highest quality instrumental and…
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.
For reference, the grantee most central to the portfolio’s shape is Society for the Preservation of New Engl and the most unlike its peers is Metropolitan Museum of Art. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
15 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. 15 of the 23 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 AMERICAN ACADEMY IN ROME ↗
- Who funds OJAI FESTIVALS LTD ↗
- Who funds WATERFORD CONCERT SERIES ↗
- Who funds HOLT-ELWELL MEMORIAL FOUNDATION OPERATING CAMP MOWGLIS ↗
- Who funds GREATER WASHINGTON COMMUNITY FOUNDATION ↗
- Who funds LOS PADRES FORESTWATCH INC ↗
- Who funds GREAT WORKS REGIONAL LAND TRUST ↗
- Who funds EverScholar Inc ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds Twin Peaks Chamber Orchestra Inc ↗
- Who funds YORK LAND TRUST ↗
- Who funds Yale Whiffenpoof Alumni Inc ↗
- Who funds FOOD FOR THOUGHT ↗
- Who funds SOCIETY FOR THE PRESERVATION OF NEW ENGL ↗
- Who funds MAINE PRESERVATION ↗
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: Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving 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 Quarry Hill Fund 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.
- Society for the Preservation of New Engl — 2% 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 Quarry Hill Fund?
Find your warmest path to Quarry Hill Fund 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.