· Private foundation
The Blossom Fund Charles R Platt Et Al Trustees
Its FY2026 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 FY2017–2026.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2026
- $50k–250k2 grants · $300k
- $250k+3 grants · $1.0M
| Recipient | Amount |
|---|---|
| HAMPTON UNIVERSITY | $410,129 |
| COLLEGE OF THE ATLANTIC | $300,000 |
| BOOTHBAY REGION YMCA | $300,000 |
| BENNINGTON COLLEGE | $200,000 |
| JUST ZERO | $100,000 |
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 (FY17–19, $55k) land where the poverty rate runs at 16%, against an area that typically sits at 8%. 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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 9% of The Blossom Fund Charles R Platt Et Al Trustees’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another. Read by recipient address, 81% of the giving stays in MA; read by stated purpose it is 86% — more of the work is directed home than the recipients' locations suggest.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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 +60% since the first grant, against -4% for the ones you funded once.
21 repeat relationships — 5 still active in FY2026, 16 since wound down.
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 FY2026, 100% of grant dollars renewed an existing relationship; $0 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
- BLBigelow Laboratory for Ocean Sciences6× · 2017–2022 · $815k · revenue +106%
- BCBENNINGTON COLLEGE CORPORATION5× · 2021–2026 · $785k · revenue +9%
- YMYoung Men's Christian Association Boothbay Region3× · 2020–2026 · $450k · revenue +37%
Funded once
- UPUpstream Policy Institute Incone grant, 2024 · $100k · revenue -52%
- WCWORKING CAPITAL FOR COMMUNITY NEEDS INCone grant, 2022 · $35k · revenue -4%
- PSPLYMOUTH STATE UNIVERSITY FBO PROVOST'S DISCRETIONARY FUNDone grant, 2023 · $35k
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.
Cgc operates as a nonprofit financial institution that invests directly and through partners to transform financial markets by using public and private investing to accelerate the deployment of projects that strengthen the grid, reduce…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.
Ceres is a nonprofit advocacy organization working to accelerate the transition to a cleaner, more just, and resilient world. through education and research, we make the business case for action on the most pressing sustainability…
Improving the transparency and scientific integrity of climate solutions through open data and tools.
The Climate Center is a climate and energy policy nonprofit working to rapidly reduce climate pollution at scale, starting in California.
Climate catalyst sparks collective action to tackle the biggest climate challenges we face today: cutting emissions in heavy industries.
To develop and promote a carbon dividends framework - based on carbon fees whose revenues are rebated to citizens through dividends - as the most cost-effective, equitable, and politically viable climate solution.
The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.
To investigate, research, write, publish, present conferences and teach with respect to global, regional, transboundary, and comparative environmental issues and to make the findings from such activities available to the general public; to…
To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.
Amazon conservation unites science, people, and innovation to protect the amazon - the greatest wild forest on earth. as guardians of the most iconic forest on the planet, we bring together the power of the latest science and technology…
For reference, the grantee most central to the portfolio’s shape is Environment America Research and Policy Center Inc and the most unlike its peers is Harbor Theater. 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 41 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) — 4% of your grantees by number, and just 7% 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.
24 grantees tracked through their own filings, 2017–2026.
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 2017–2026, not grant rows in a single year — so this will not match the grant count on the cover. 24 of the 33 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 Bigelow Laboratory for Ocean Sciences ↗
- Who funds BENNINGTON COLLEGE CORPORATION ↗
- Who funds ECO-LOGIC DEVELOPMENT FUND ↗
- Who funds Young Men's Christian Association Boothbay Region ↗
- Who funds COLLEGE OF THE ATLANTIC ↗
- Who funds FIDELITY INVESTMENTS CHARITABLE GIFT FUND ↗
- Who funds JUST ZERO ↗
- Who funds Natural Resources Council of Maine Inc ↗
- Who funds ESSEX COUNTY GREENBELT ASSOCIATION ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds GLOBAL GREENGRANTS FUND ↗
- Who funds Upstream Policy Institute Inc ↗
- Who funds BOSTON CHINATOWN NEIGHBORHOOD CENTER INC ↗
- Who funds PROJECT DEEP INC ↗
- Who funds WORKING CAPITAL FOR COMMUNITY NEEDS INC ↗
- Who funds APPROPRIATE TECHNOLOGY COLLABORATIVE ↗
- Who funds ENVIRONMENT AMERICA RESEARCH AND POLICY CENTER INC ↗
- Who funds THOUSAND CURRENTS ↗
- Who funds COOLIDGE CORNER THEATRE FOUNDATION INC ↗
- Who funds CONSERVATION LAW FOUNDATION INC ↗
- Who funds MOTHERS OUT FRONT INC ↗
- Who funds Harbor Theater ↗
- Who funds CAMBRIDGE SCHOOL VOLUNTEERS INC ↗
- Who funds CHARLES RIVER WATERSHED ASSOCIATION 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: Boston Foundation Inc · Maine Community Foundation Inc · Eastern Bank Foundation · Jewish Communal Fund · Vanguard Charitable Endowment Program · National Philanthropic Trust · American Online Giving Foundation Inc · 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 The Blossom Fund Charles R Platt Et Al Trustees 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.
- Boston Chinatown Neighborhood Center Inc — 38% of income from government
- Cambridge School Volunteers Inc — 14% of income from government
- Essex County Greenbelt Association — 8% of income from government
- Charles River Watershed Association Inc — 8% of income from government
- President and Fellows of Harvard College — 7% of income from government
- Coolidge Corner Theatre Foundation Inc — 0% of income from government
- Bennington College Corporation — 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.
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