· Private foundation
The Hamermesh Family Charitable Foundation
Its FY2025 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 FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k9 grants · $18k
- $10k–50k3 grants · $30k
| Recipient | Amount |
|---|---|
| BETH ISREAL MEDICAL CENTER | $10,000 |
| PANCREATIC CANCER ACTION NETWORK | $10,000 |
| HARVARD BUSINESS SCHOOL | $10,000 |
| MARTHA'S VINEYARD HEBREW CENTER | $5,556 |
| INSTITUTE OF CONTEMPORARY ART BOSTON | $5,000 |
| TEMPLE SHALOM OF NEWTON | $3,000 |
| JOEY FUND CYSTIC FIBROSIS | $2,500 |
| MARTHA'S VINEYARD COMMUNITY SERVICES | $1,000 |
| ARTSIT FOR HUMANITY | $500 |
| NEW ENGLAND CONSERVATORY | $250 |
| BOSTON CENTER FOR THE ARTS | $150 |
| Individual grant recipient | $125 |
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 (FY20–25, $6k) land where the poverty rate runs at 11%, against an area that typically sits at 11%. 36% 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 +7% since the first grant, against +2% for the ones you funded once.
33 repeat relationships — 7 still active in FY2025, 26 since wound down; 5 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, 96% of grant dollars renewed an existing relationship; $2k 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
THE INSTITUTE OF CONTEMPORARY ART INC5× · 2020–2025 · $29k · revenue +66%- AHAmerican Heart Association Inc4× · 2020–2023 · $2k · revenue +53%
MEDECINS SANS FRONTIERES USA INC4× · 2020–2023 · $2k · revenue +39%
Funded once
- SOSCHOOL OF THE MUSEUM OF FINE ARTSone grant, 2020 · $20k
- EGENDEAVOR GLOBAL INC (F/K/A THE ENDEAVOR INITIATIVE INC)one grant, 2021 · $10k · revenue -50%
- IGIndividual grant recipientone grant, 2021 · $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.
The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.
Medtech innovator organizes and runs a global competition and virtual accelerator for medical device, digital health, and diagnostic startup companies.
Mass general brigham incorporated is developing an integrated health care delivery system throughout the region that offers patients a continuum of coordinated, high-quality care.
Our mission is to break down barriers to als research to find effective treatments. by uniting academia, the pharma and biotech industry, government, venture capital, related nonprofits, and the als community, we aim to overcome the…
2025 was a turbulent year for the medical and health research community, but our commitment to advocating for science never wavered. from pushing back against funding threats to elevating researchers' voices and equipping advocates, we…
The mission of the broad institute is to propel progress in biomedicine, through research aimed at the understanding and treatment of disease and the dissemination of scientific knowledge to the scientific community to benefit the public.…
Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…
Dedicated to improving the quality of life of myeloma patients while working toward prevention and a cure.
The american college of radiology (acr) is organized to advance radiology science, practice and access, improve quality and safety, provide continuing education for radiology and allied professionals, and achieve better outcomes through…
The mission of dfci is to provide expert, compassionate, and equitable care to children, adults, and their families, while advancing the understanding, diagnosis, treatment, cure, and prevention of cancer and related diseases. we train new…
For reference, the grantee most central to the portfolio’s shape is March of Dimes Inc and the most unlike its peers is Alray Taylor Second Chance Scholarship Fund Corporation. 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 51 years old; the field is 17. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 11% 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.
25 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. 25 of the 52 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 PANCREATIC CANCER ACTION NETWORK INC ↗
- Who funds THE INSTITUTE OF CONTEMPORARY ART INC ↗
- Who funds ENDEAVOR GLOBAL INC (F/K/A THE ENDEAVOR INITIATIVE INC) ↗
- Who funds THE MULTIPLE MYELOMA RESEARCH FOUNDATION INC ↗
- Who funds YALE NEW HAVEN HOSPITAL ↗
- Who funds SKY'S THE LIMIT FUND ↗
- Who funds American Heart Association Inc ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds MULTIPLE SCLEROSIS FOUNDATION INC ↗
- Who funds HABITAT FOR HUMANITY INC ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds BLAIR ACADEMY ↗
- Who funds YOUTHBUILD BOSTON INC ↗
- Who funds AMERICAN INSTITUTE FOR CANCER RESEARCH ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds ARTHRITIS FOUNDATION INC ↗
- Who funds NATIONAL MULTIPLE SCLEROSIS SOCIETY ↗
- Who funds CHILMARK TOWN AFFAIRS COUNCIL INC ↗
- Who funds MARCH OF DIMES INC ↗
- Who funds ALRAY TAYLOR SECOND CHANCE SCHOLARSHIP FUND CORPORATION ↗
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: Combined Jewish Philanthropies of Greater Boston Inc · Jewish Communal Fund · Jpmorgan Chase Foundation · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · American Online Giving Foundation 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 The Hamermesh Family Charitable Foundation 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.
- Youthbuild Boston Inc — 9% of income from government
- Martha's Vineyard Community Services Inc — 3% of income from government
- Boston Center for the Arts Inc — 1% of income from government
- New England Conservatory of Music — 1% of income from government
- The Institute of Contemporary Art Inc — 1% of income from government
- Yale New Haven Hospital — 0% of income from government
- Blair Academy — 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.