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The Joslin Foundation at a glance

· Private foundation

The Joslin Foundation

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.

$675
Granted FY2025still arriving
3
Grants FY2025still arriving
3
States reached
$265
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Education$141kCommunity Improvement$30kHuman Services$4kHealth$3kPhilanthropy$3kRecreation & Sports$2kYouth Development$1kFood & Nutrition$1kOther$0
02FY2025 · 3 grants

Where the money goes

Grants by size, and the largest recipients.

$250
Median grant
3
States reached
$375k
Total assets
Largest grants
RecipientAmount
National Blood Clot Alliance$265
American Warrior Association$250
Gear Up 2 Lead$160
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 (FY20–25, $750) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 67% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%American Warrior Association: $250 → 11%LITTLE CITY FOUNDATION: $500 → 14%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
IL
MI
MA
PA
CT
RI
CA
UT
VA
OK
TX
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.
03Its grantees
repeat funding

Who it funds again

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

91%of every dollar goes to organizations it has funded before.
$152k · 7 repeat orgs$15k to everyone else

Grantees it renews have grown median revenue +83% since the first grant, against +38% for those funded once.

7 repeat relationships: 0 still active in FY2025, 7 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

7
11

Total granted

$152k
$14k

Median revenue growth · since first grant

+83%
+38%

Still filing today

29%
73%

New vs renewed · share of each year

In FY2025, 0% of grant dollars renewed an existing relationship; $675 went to new ones.

50%100%’20’21’22’23’24’25
RenewedFirst-time

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

’20’21’22’23’24’25
EducationHuman ServicesHealthAnimalsFood & NutritionYouth DevelopmentOther
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

  • HS
    HARVARD-WESTLAKE SCHOOL
    4× · 2020–2023 · $95k · revenue +31%
  • CP
    Community Partners for Civic Center
    3× · 2021–2023 · $30k
  • MS
    MICHIGAN STATE UNIVERSITY
    3× · 2020–2023 · $9k

Funded once

  • YU
    YALE UNIVERSITY
    one grant, 2020 · $5k
  • KL
    KLINGER LAKE COUNTRY CLUB
    one grant, 2024 · $2k · revenue +5%
  • CH
    Children's Hospital Los Angeles
    one grant, 2023 · $2k · revenue +13%
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
Boston Architectural College

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

—
2
Furman University

The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.

Education
3
University of New Haven

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…

Education
4
Saint Xavier University

Saint xavier university, a catholic institution inspired by the heritage of the sisters of mercy, educates persons to search for truth, think critically, communicate effectively and serve wisely and compassionately in support of human…

Education
5
Augustana College

Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…

Education
6
Golden Gate University

Golden gate university prepares individuals to lead and serve by providing high quality, practice-based educational programs in law, taxation, business and related professions - as a nonprofit institution - in an innovative and challenging…

Education
7
Aacsb International - the Association to Advance Collegiate Schools of Business

Aacsb international provides quality assurance of business school programs, the latest in business education intelligence, thought leadership, and learning and development services.

Education
8
American Gas Association

American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…

—
9
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
10
Chicago Public Education Fund

The chicago public education fund (the fund) is a nonprofit organization that improves public schools in chicago by investing in the talented educators who lead them.

Education
11
Mastery Charter High School

All students learn the academic and personal skills they need to be truly prepared for postsecondary success and able to pursue their dreams.

Education
12
Columbia College Chicago

The organization's mission is to educate students for creative occupations in diverse fields of arts and media.

Education
How this is measured
The grantee most central to the portfolio’s shape is Governor Dummer Academy the Governor's Academy; the most unlike its peers is GEARUP2LEAD. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

14 grantees tracked through their own filings, 2017–2025.

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 2025, not grant rows in a single year, so this will not match the grant count on the cover. 14 of the 22 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)
1
Early backer (in before they grew)
14/14
Grantees still filing
10/14
Grew since first funded

Where the money sits, by cause and then by grantee

HARVARD-WESTLAKE SCHOOL: $95,000 · EducationHARVARD-WESTLAKE SCHOOLGOVERNOR DUMMER ACADEMY THE GOVERNOR'S ACADEMY: $5,000 · EducationCommunity Partners for Civic Center: $30,000 · OtherCommunity Partners for Civic CenterMICHIGAN STATE UNIVERSITY: $9,000 · OtherMICHIGAN STATE UNIVERSITYYALE UNIVERSITY: $6,000 · OtherYALE UNIVERSITYYALE UNIVERSITY: $5,000 · OtherYALE UNIVERSITYSALVATION ARMY: $4,000 · OtherSALVATION ARMYHAVEN FOUNDATION: $3,000 · Other+5 more: $4,160 · Other+5 moreBROWN UNIVERSITY: $20,000 · Community ImprovementBROWN UNIVER…Children's Hospital Los Angeles: $2,000 · HealthNATIONAL BLOOD CLOT ALLIANCE: $265 · HealthBERNIE'S BOOK BANK: $1,200 · Youth DevelopmentGLEANERS COMMUNITY FOOD BANK OF SOUTHEASTERN MICHIGAN: $1,000 · Food & NutritionLITTLE CITY FOUNDATION: $500 · Human ServicesAMERICAN WARRIOR ASSOCIATION: $250 · Human ServicesPAWS CHICAGO: $300 · AnimalsONE TAIL AT A TIME NFP: $50 · Animals
Education$100,000Other$61,160Community Improvement$20,000Health$2,265Youth Development$1,200Food & Nutrition$1,000Human Services$750Animals$350

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 budgetHARVARD-WESTLAKE SCHOOL: $95,000 over 4y, 0.0% of budgetBROWN UNIVERSITY: $20,000 over 4y, 0.0% of budgetGOVERNOR DUMMER ACADEMY THE GOVERNOR'S ACADEMY: $5,000 over 4y, 0.0% of budgetKLINGER LAKE COUNTRY CLUB: $2,000 over 1y, 0.2% of budgetChildren's Hospital Los Angeles: $2,000 over 1y, 0.0% of budgetBERNIE'S BOOK BANK: $1,200 over 1y, 0.0% of budgetGLEANERS COMMUNITY FOOD BANK OF SOUTHEASTERN MICHIGAN: $1,000 over 1y, 0.0% of budgetGAM FOUNDATION: $500 over 1y, 0.2% of budgetLITTLE CITY FOUNDATION: $500 over 1y, 0.0% of budgetPAWS CHICAGO: $300 over 1y, 0.0% of budgetNATIONAL BLOOD CLOT ALLIANCE: $265 over 1y, 0.0% of budgetAMERICAN WARRIOR ASSOCIATION: $250 over 1y, 0.0% of budgetONE TAIL AT A TIME NFP: $50 over 1y, 0.0% 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.

American Online Givin…Donor Advised Charita…
American Online Giving Foundation IncDE6.7× affinity4 shared granteesties to 1 of 1Hover any node to trace its alignments.Compare side by side →

Open a dossier: American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc

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 Joslin Foundation funds: left to right is the share of its income from government, bottom to top the share from The Joslin Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →median 1%
  • Governor Dummer Academy the Governor's Academy: 1% of income from government
no gov moneyreceives it· size = income
0get 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.

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 22 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 2025, released 2025. 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