· Private foundation
Twin Chimney Inc
Its FY2024 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
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 49% of Twin Chimney Inc’s grantee dollars fall outside its nine largest cause areas, whether because the recipient carries no IRS cause code or because its cause sits in the long tail. A chart would be mostly one residual band and misrepresent the portfolio.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2019
- Under $10k4 grants · $20k
- $10k–50k4 grants · $60k
| Recipient | Amount |
|---|---|
| JERSEYCAN | $20,000 |
| MIT | $20,000 |
| DANA FARBER INSTITUTE | $10,000 |
| MIT | $10,000 |
| PRINCETON FIRST AID & RESCUE SQ | $5,000 |
| PRINCETON PUBLIC LIBRARY | $5,000 |
| CENTER FOR SUPPORTIVE SCHOOLS | $5,000 |
| PRINCETON MEDICAL CENTER FOUNDATION | $5,000 |
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 (FY17–18, $2k) land where the poverty rate runs at 10%, against an area that typically sits at 11%. 17% 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 +64% since the first grant, against +32% for the ones you funded once.
57 repeat relationships — 6 still active in FY2019, 51 since wound down; 1 grantees were first funded in FY2019 (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 FY2019, 94% of grant dollars renewed an existing relationship; $5k 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
ISLES INC2× · 2017–2018 · $50k · revenue +167%
Dana-Farber Cancer Institute Inc2× · 2017–2019 · $20k · revenue +132%- 'T'SCONSET TRUST INC2× · 2017–2018 · $12k · revenue ×18
Funded once
- SBSIASCONSET BEACH PRESERVATION FUND INCone grant, 2018 · $150k · revenue -42%
- MTMcCarter Theatreone grant, 2017 · $55k
- NANANTUCKET ATHENEUM INCgraduatedone grant, 2017 · $27k · revenue +78%
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…
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
To bring quality public television programs and resources to communities throughout new jersey and its tri-state neighbors. its content, both on-air and online, aims to reflect the diverse
To educate students to be ethical and socially responsible leaders in a global community.
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.
Wentworth institute of technology is a nationally recognized private coeducational and residential university of higher education with a mission to empower, inspire and innovate through experiential learning with a core purpose of career…
Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.
Provide post-secondary education of excellence.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…
Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…
For reference, the grantee most central to the portfolio’s shape is New Jersey Seeds Inc and the most unlike its peers is Dana-Farber Cancer Institute 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 42 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) — 1% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% 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.
81 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. 81 of the 131 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 SIASCONSET BEACH PRESERVATION FUND INC ↗
- Who funds ISLES INC ↗
- Who funds Princeton Area Community Foundation Inc ↗
- Who funds Massachusetts Institute of Technology ↗
- Who funds NANTUCKET ATHENEUM INC ↗
- Who funds Dana-Farber Cancer Institute Inc ↗
- Who funds 'SCONSET TRUST INC ↗
- Who funds The Trustees of Princeton University ↗
- Who funds NANTUCKET COMMUNITY MUSIC CENTER ↗
- Who funds HISTORIC MORVEN INC ↗
- Who funds AMERICAN ENTERPRISE INSTITUTE FOR PUBLIC POLICY RESEARCH ↗
- Who funds CENTER FOR SUPPORTIVE SCHOOLS INC ↗
- Who funds Community Foundation for Nantucket Inc ↗
- Who funds YOUNG AUDIENCES OF NEW JERSEY INC ↗
- Who funds BRONX LETTERS FOUNDATION ↗
- Who funds PRINCETON HEALTHCARE SYSTEM FOUNDATION INC ↗
- Who funds THE URBAN ASSEMBLY INC ↗
- Who funds COMPASSION & CHOICES ↗
- Who funds PRINCETON HEALTHCARE SYSTEM HOLDING INC ↗
- Who funds EXCELLENT EDUCATION FOR EVERYONE INC ↗
- Who funds Woodwell Climate Research Center Inc ↗
- Who funds NANTUCKET CONSERVATION FOUNDATION INC ↗
- Who funds ROBIN HOOD FOUNDATION ↗
- Who funds ADVANCING NATIVE MISSIONS ↗
- Who funds THE CENTER FOR EDUCATION REFORM ↗
- Who funds THEATRE WORKSHOP OF NANTUCKET INC ↗
- Who funds The Petey Greene Program Inc ↗
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: Bristol-Myers Squibb Foundation Inc · Princeton Area Community Foundation Inc · Community Foundation for Nantucket Inc · The Robert Wood Johnson Foundation · The Macmillan Family Foundation Inc · Nantucket Golf Club Foundation Inc · Charina Foundation Inc Richard Menschel · Pseg Foundation Inc · Curtis W McGraw Foundation · The George & Marie Chabot Charitable Foundation · The Hajim Family Foundation · The Trustees of Princeton University
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 Twin Chimney 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.
- A Safe Place Inc — 45% of income from government
- Massachusetts Institute of Technology — 35% of income from government
- The Petey Greene Program Inc — 29% of income from government
- Isles Inc — 21% of income from government
- Princeton Healthcare System Holding Inc — 12% of income from government
- Woodwell Climate Research Center Inc — 11% of income from government
- The Trustees of Princeton University — 11% of income from government
- Passage Theatre Company Inc — 10% of income from government
- Community Foundation for Nantucket Inc — 10% of income from government
- D&r Greenway Land Trust Inc — 9% of income from government
- Nantucket Maria Mitchell Association in — 9% of income from government
- Center for Supportive Schools Inc — 9% of income from government
- United Way of Greater Mercer County — 8% of income from government
- Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation — 7% of income from government
- Dana-Farber Cancer Institute Inc — 7% of income from government
- New England Life Flight Inc — 5% of income from government
- Princeton Nursery School — 4% of income from government
- Nantucket Dreamland Foundation Inc — 4% of income from government
- Nantucket Conservation Foundation Inc — 4% of income from government
- The Trustees of Reservations — 2% of income from government
- Nantucket Community Music Center — 1% of income from government
- Wellesley College — 1% of income from government
- Young Audiences of New Jersey Inc — 1% of income from government
- Artists Association of Nantucket Inc — 0% of income from government
- Choate Rosemary Hall Foundation Incorporated — 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.