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The Blossom Fund Charles R Platt Et Al Trustees at a glance

· Private foundation

The Blossom Fund Charles R Platt Et Al Trustees

Its FY2026 filing reports that it accepted unsolicited grant applications.

$1.3M
Granted FY2026still arriving
5
Grants FY2026still arriving
4
States reached
$410k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0193% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2026.

Environment$2.1MEducation$1.4MScience & Tech$875kHuman Services$505kRecreation & Sports$456kPhilanthropy$385kCommunity Improvement$86kInternational$83kOther$0
02FY2026 · 5 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2026

  • $50k–250k2 grants · $300k
  • $250k+3 grants · $1.0M
$300,000
Median grant
4
States reached
$649k
Total assets
Largest grants
RecipientAmount
HAMPTON UNIVERSITY$410,129
COLLEGE OF THE ATLANTIC$300,000
BOOTHBAY REGION YMCA$300,000
BENNINGTON COLLEGE$200,000
JUST ZERO$100,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its 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 its grants land in higher-need ZIPs.

area typical 8%BOSTON CHINATOWN NEIGHBORHOOD CENTER: $25k → 16%BOSTON CHINATOWN NEIGHBORHOOD CENTER: $25k → 16%BOSTON CHINATOWN NEIGHBORHOOD CENTER: $5k → 16%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

ME
VT
NH
MN
WI
MI
NY
MA
OH
PA
CA
CO
VA
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 9% of The Blossom Fund Charles R Platt Et Al Trustees’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 81% of the giving stays in MA; by stated purpose, 86%.

The Blossom Fund Charles R Platt Et Al Trusteeslessmore of its giving
Placed by recipient address
How this is measured
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 funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

96%of every dollar goes to organizations it has funded before.
$5.4M · 21 repeat orgs$230k to everyone else

Grantees it renews have grown median revenue +60% since the first grant, against -4% for those funded once.

21 repeat relationships: 5 still active in FY2026, 16 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

21
9

Total granted

$5.4M
$230k

Median revenue growth · since first grant

+60%
-4%

Still filing today

71%
67%

New vs renewed · share of each year

In FY2026, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’17’18’19’20’21’22’23’24’25’26
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25’26
EnvironmentEducationInternationalArts & CultureScience & TechHuman ServicesOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • BL
    Bigelow Laboratory for Ocean Sciences
    6× · 2017–2022 · $815k · revenue +106%
  • BC
    BENNINGTON COLLEGE CORPORATION
    5× · 2021–2026 · $785k · revenue +9%
  • YM
    Young Men's Christian Association Boothbay Region
    3× · 2020–2026 · $450k · revenue +37%

Funded once

  • UP
    Upstream Policy Institute Inc
    one grant, 2024 · $100k · revenue -52%
  • WC
    WORKING CAPITAL FOR COMMUNITY NEEDS INC
    one grant, 2022 · $35k · revenue -4%
  • PS
    PLYMOUTH STATE UNIVERSITY FBO PROVOST'S DISCRETIONARY FUND
    one grant, 2023 · $35k
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Coalition for Green Capital D/B/a American Green Bank Consortium

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…

Environment
2
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
3
Native Plant Trust Inc

The organization's mission is to conserve and promote new england's native plants to ensure healthy, biologically diverse landscapes.

Environment
4
Ceres Inc

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…

Environment
5
CarbonPlan

Improving the transparency and scientific integrity of climate solutions through open data and tools.

Environment
6
The Climate Center

The Climate Center is a climate and energy policy nonprofit working to rapidly reduce climate pollution at scale, starting in California.

Education
7
Climate Catalyst Inc

Climate catalyst sparks collective action to tackle the biggest climate challenges we face today: cutting emissions in heavy industries.

Environment
8
Climate Leadership Council Inc

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.

Environment
9
The Union of Concerned Scientists Inc

The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.

International
10
Center for International Environmental Law Inc

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…

International
11
Environmental Investigation Agency

To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.

International
12
Amazon Conservation Association

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…

Environment
How this is measured
The grantee most central to the portfolio’s shape is Environment America Research and Policy Center Inc; 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.
05the grantee network

24 grantees tracked through their own filings, 2017–2026.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 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.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
7
Early backer (in before they grew)
24/24
Grantees still filing
17/24
Grew since first funded

Where the money sits, by cause and then by grantee

HAMPTON UNIVERSITY: $470,129 · OtherHAMPTON UNIVERSITYYoung Men's Christian Association Boothbay Region: $450,000 · OtherYoung Men's Christian Association Boo…COLLEGE OF THE ATLANTIC: $427,500 · OtherCOLLEGE OF THE ATLANTICUPSTREAM: $400,000 · OtherUPSTREAMIndividual grant recipient: $87,629 · Other+9 more: $244,130 · Other+9 moreECO-LOGIC DEVELOPMENT FUND: $681,500 · EnvironmentECO-LOGIC DEVELOPMENT FUNDJUST ZERO: $350,000 · EnvironmentJUST ZERONatural Resources Council of Maine Inc: $334,942 · EnvironmentNatural Resources Council of Maine …ESSEX COUNTY GREENBELT ASSOCIATION: $325,000 · EnvironmentESSEX COUNTY GREENBELT ASSOCIATIONGLOBAL GREENGRANTS FUND: $135,000 · EnvironmentGLOBAL GREENGRANTS FUNDUpstream Policy Institute Inc: $100,000 · Environment+4 more: $44,733 · EnvironmentBENNINGTON COLLEGE CORPORATION: $785,000 · EducationBENNINGTON COLLEG…President and Fellows of Harvard College: $140,000 · EducationPresident and Fel…+2 more: $35,000 · EducationBigelow Laboratory for Ocean Sciences: $814,671 · Science & TechBigelow Labora…FIDELITY INVESTMENTS CHARITABLE GIFT FUND: $385,000 · Community ImprovementBOSTON CHINATOWN NEIGHBORHOOD CENTER INC: $55,000 · Human ServicesWORKING CAPITAL FOR COMMUNITY NEEDS INC: $35,286 · InternationalTHOUSAND CURRENTS: $17,500 · International
Other$2,079,388Environment$1,971,175Education$960,000Science & Tech$814,671Community Improvement$385,000Human Services$55,000International$52,786

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetBigelow Laboratory for Ocean Sciences: $814,671 over 6y, 1.9% of budgetBENNINGTON COLLEGE CORPORATION: $785,000 over 5y, 0.3% of budgetECO-LOGIC DEVELOPMENT FUND: $681,500 over 8y, 22% of budgetYoung Men's Christian Association Boothbay Region: $450,000 over 3y, 2.9% of budgetCOLLEGE OF THE ATLANTIC: $427,500 over 2y, 0.4% of budgetFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $385,000 over 2y, 0.0% of budgetJUST ZERO: $350,000 over 3y, 21% of budgetNatural Resources Council of Maine Inc: $334,942 over 3y, 4.8% of budgetESSEX COUNTY GREENBELT ASSOCIATION: $325,000 over 2y, 3.6% of budgetPresident and Fellows of Harvard College: $140,000 over 3y, 0.0% of budgetGLOBAL GREENGRANTS FUND: $135,000 over 5y, 0.4% of budgetUpstream Policy Institute Inc: $100,000 over 1y, 6.4% of budgetBOSTON CHINATOWN NEIGHBORHOOD CENTER INC: $55,000 over 3y, 0.4% of budgetPROJECT DEEP INC: $46,000 over 4y, 13% of budgetWORKING CAPITAL FOR COMMUNITY NEEDS INC: $35,286 over 1y, 2.0% of budgetAPPROPRIATE TECHNOLOGY COLLABORATIVE: $30,000 over 2y, 8.1% of budgetENVIRONMENT AMERICA RESEARCH AND POLICY CENTER INC: $20,000 over 2y, 0.4% of budgetTHOUSAND CURRENTS: $17,500 over 2y, 0.3% of budgetCOOLIDGE CORNER THEATRE FOUNDATION INC: $13,000 over 2y, 0.2% of budgetCONSERVATION LAW FOUNDATION INC: $10,000 over 1y, 0.0% of budgetMOTHERS OUT FRONT INC: $10,000 over 1y, 0.5% of budgetHarbor Theater: $5,500 over 2y, 2.1% of budgetCHARLES RIVER WATERSHED ASSOCIATION INC: $4,733 over 1y, 0.2% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Boston Foundation IncMaine Community Found…Eastern Bank Foundati…Jewish Communal FundVanguard Charitable E…National Philanthropi…American Online Givin…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
Boston Foundation IncMA16.1× affinity6 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization The Blossom Fund Charles R Platt Et Al Trustees funds: left to right is the share of its income from government, bottom to top the share from The Blossom Fund Charles R Platt Et Al Trustees. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%2%6%14%25%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →median 8%
  • 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
no gov moneyreceives it· size = income
6get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–40%
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The Blossom Fund Charles R Platt Et Al Trustees?

Find your warmest path to The Blossom Fund Charles R Platt Et Al Trustees 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.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 33 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2026, released 2026. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home