· Private foundation
The Old Stones 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.
By grant size · FY2025
- Under $10k71 grants · $137k
- $10k–50k10 grants · $115k
- $50k–250k2 grants · $122k
| Recipient | Amount |
|---|---|
| GLIMMERGLASS OPERA THEATRE INC | $67,000 |
| CHRIST CHURCH GREENWICH | $55,000 |
| MACULA FOUNDATION | $20,000 |
| AMERICAN PRECISION MUSEUM | $12,500 |
| BRIGHTFOCUS FOUNDATION | $11,000 |
| WASHINGTON NATIONAL CATHEDRAL | $11,000 |
| MANHATTAN INSTITUTE | $10,000 |
| YANKEE INSTITUTE FOR PUBLIC POLICY | $10,000 |
| GREENWICH EMERGENCY MEDICAL SERVICE | $10,000 |
| NEW YORK UNIVERSITY | $10,000 |
| FROM THE HEART PRODUCTIONS INC | $10,000 |
| ACTORS FUND HOME | $10,000 |
| LEADERSHIP INSTITUTE | $8,000 |
| CLAREMONT INSTITUTE | $6,500 |
| CATHEDRAL CHURCH OF ST JOHN THE DIVINE | $6,000 |
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 (FY17–25, $7k) land where the poverty rate runs at 7%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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 +56% since the first grant, against +49% for the ones you funded once.
67 repeat relationships — 36 still active in FY2025, 31 since wound down; 44 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, 58% of grant dollars renewed an existing relationship; $154k 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
- APAMERICAN PRECISION MUSEUM INC5× · 2017–2025 · $73k · revenue +412%
- MIMANHATTAN INSTITUTE FOR POLICY RESEARCH INC5× · 2017–2025 · $45k · revenue +38%
- YIYANKEE INSTITUTE FOR PUBLIC POLICY5× · 2017–2025 · $34k · revenue +32%
Funded once
- COChildren of Fallen Patriots Foundationgraduatedone grant, 2020 · $5k · revenue +194%
- LELOWER EAST SIDE TENEMENT MUSEUMgraduatedone grant, 2020 · $5k · revenue +61%
- MEMASSACHUSETTSS EYE & EAR HOSPITALone grant, 2018 · $5k
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 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…
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 foreign policy research institute (frpi) is dedicated to producing the highest quality scholarship and nonpartisan policy analysis focused on crucial foreign policy and national security challenges facing the united states. we educate…
The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.
Finance impacts everyone. as a socially relevant organization, the museum of american finance seeks to improve understanding of the influence of financial institutions and capital markets on the u.s. and global economies, and on…
The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…
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 peterson institute for international economics (piie) is an independent nonprofit, nonpartisan research organization dedicated to strengthening prosperity and human welfare in the global economy through expert analysis and practical…
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 the george washington university (gw) is to educate individuals in liberal arts, languages, sciences, learned professions, and other courses and subjects of study, and to conduct scholarly research and publish the findings…
To create a nation where everyone enjoys a fair share of our collective prosperity.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
For reference, the grantee most central to the portfolio’s shape is The Heritage Foundation and the most unlike its peers is Untermyer Gardens Conservancy 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 38 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 3% of your grantees by number, and just 5% of your money.
The orgs you fund almost never close — 0.8% lost their exemption, against 13% 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.
109 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. 109 of the 140 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 PRECISION MUSEUM INC ↗
- Who funds GLIMMERGLASS OPERA THEATRE INC ↗
- Who funds MANHATTAN INSTITUTE FOR POLICY RESEARCH INC ↗
- Who funds THE MACULA FOUNDATION INC ↗
- Who funds YANKEE INSTITUTE FOR PUBLIC POLICY ↗
- Who funds New York University ↗
- Who funds JUDICIAL WATCH INC ↗
- Who funds PROJECT VERITAS ↗
- Who funds WIKIMEDIA FOUNDATION INC ↗
- Who funds HILLSDALE COLLEGE ↗
- Who funds SOUNDWATERS INC ↗
- Who funds GEORGE MASON UNIVERSITY FOUNDATION INC ↗
- Who funds THE CLAREMONT INSTITUTE FOR THE STUDY OF STATESMANSHIP & POLITICAL PHILOSOPHY ↗
- Who funds BRIGHTFOCUS FOUNDATION ↗
- Who funds INSTITUTE FOR JUSTICE ↗
- Who funds NATIONAL REVIEW INSTITUTE ↗
- Who funds FISHER HOUSE FOUNDATION INC ↗
- Who funds From The Heart Productions ↗
- Who funds GREENWICH EMERGENCY MEDICAL SERVICE INC ↗
- Who funds Leadership Institute ↗
- Who funds BRUCE MUSEUM INC ↗
- Who funds KINGSWOOD OXFORD SCHOOL INC ↗
- Who funds The New York Public Library Astor Lenox and Tilden Foundations ↗
- Who funds SEMPER FI & AMERICA'S FUND ↗
- Who funds PACIFIC HOUSE INC ↗
- Who funds NATIONAL ASSOCIATION OF SCHOLARS INC ↗
- Who funds MUSIC HOUSE MUSEUM ↗
- Who funds MYSTIC SEAPORT MUSEUM INC ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds SAVE THE SOUND ↗
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: Malkin Fund Inc · Royce Family Fund Inc · Fairfield County's Community Foundation Inc · Ibm International Foundation · Cornelia Cogswell Rossi Foundation Inc · Donors Trust Inc · Alexander Host Foundation · The Resource Foundation Inc · Connecticut Humanities Council Inc · The Watt Family Foundation · The Gibbons Foundation · The William J and Frances E Deutsch Charitable 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 Old Stones 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, a single department, or state — and drag the year to watch it move.
- Abilis Inc — 74% of income from government
- Mercy Corps — 47% of income from government
- Pacific House Inc — 46% of income from government
- Save the Sound — 37% of income from government
- The Norwalk Symphony Society Inc — 13% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Connecticut Foodshare Inc — 5% of income from government
- The Maritime Aquarium at Norwalk Inc — 5% of income from government
- Mystic Seaport Museum Inc — 5% of income from government
- Soundwaters Inc — 4% of income from government
- Greenwich Alliance for Education Inc — 3% of income from government
- Connecticut Public Broadcasting Inc — 3% of income from government
- Friends of Mount Auburn Cemetery — 1% of income from government
- Bruce Museum Inc — 0% of income from government
- Kingswood Oxford School Inc — 0% of income from government
- Greenwich Hospital — 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.