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· Private foundation

John F Maher Family 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.

$57k
Granted FY2025still arriving
21
Grants FY2025still arriving
8
States reached
$10k
Largest
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

Health$311kAnimals$116kEducation$92kPublic Safety & Disaster$49kArts & Culture$36kEnvironment$33kHuman Services$6kScience & Tech$3kOther$0
02FY2025 · 21 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k19 grants · $37k
  • $10k–50k2 grants · $20k
$1,000
Median grant
8
States reached
$1.8M
Total assets
Largest grants
RecipientAmount
YALE-NEW HAVEN HOSPITAL$10,000
GREENWICH HOSPITAL FOUNDATION$10,000
ASPCA$5,000
DUCKS UNLIMITED$5,000
AMERICAN RED CROSS$5,000
CANINE COMPANIONS FOR INDEPENDENCE$5,000
SALISBURY SCHOOL$2,500
GARDEN CONSERVANCY INC$2,500
DEERFIELD ACADEMY$2,000
WOODS HOLE OCEANOGRAPHIC INSTITUTION$1,000
UNIVERSITY OF PENNSYLVANIA$1,000
NATIONAL ALLIANCE ON MENTAL ILLNESS$1,000
FAULKNER'S LIGHT BRIGADE$1,000
GLENVILLE VOLUNTEER FIRE CO$1,000
FLORENCE GRISWOLD MUSEUM$1,000
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:

Dollar for dollar, its grants (FY18–25) land where the poverty rate runs at 11%, against an area that typically sits at 12%. 24% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 12%DEERFIELD ACADEMY: $2k → 14%SOCIETY OF FELLOWSHIP: $3k → 14%GARDEN CONSERVANCY INC: $3k → 6%ASPCA: $5k → 17%SALISBURY SCHOOL: $53k → 9%FLORENCE GRISWORLD MUSEUM: $2k → 9%GREENWICH HOSPITAL FOUNDATION: $11k → 9%DUCKS UNLIMITED: $5k → 17%NATIONAL ALLIANCE ON MENTAL ILLNESS: $10k → 7%GARDEN CONSERVANCY INC: $3k → 6%ASPCA: $5k → 17%SALISBURY SCHOOL: $3k → 9%GREENWICH HOSPITAL FOUNDATION: $10k → 9%DUCKS UNLIMITED: $5k → 17%NATIONAL ALLIANCE ON MENTAL ILLNESS: $10k → 7%GARDEN CONSERVANCY INC: $3k → 6%ASPCA: $5k → 17%SALISBURY SCHOOL: $3k → 9%GREENWICH HOSPITAL FOUNDATION: $10k → 9%DUCKS UNLIMITED: $5k → 17%NATIONAL ALLIANCE ON MENTAL ILLNESS: $5k → 7%GARDEN CONSERVANCY INC: $3k → 6%ASPCA: $5k → 17%SALISBURY SCHOOL: $3k → 9%GREENWICH HOSPITAL FOUNDATION: $10k → 9%DUCKS UNLIMITED: $5k → 17%NATIONAL ALLIANCE ON MENTAL ILLNESS: $5k → 7%GARDEN CONSERVANCY INC: $3k → 6%ASPCA: $5k → 17%SALISBURY SCHOOL: $3k → 9%GREENWICH HOSPITAL FOUNDATION: $10k → 9%DUCKS UNLIMITED: $5k → 17%NATIONAL ALLIANCE ON MENTAL ILLNESS: $5k → 7%GARDEN CONSERVANCY INC: $3k → 6%ASPCA: $5k → 17%SALISBURY SCHOOL: $3k → 9%GREENWICH HOSPITAL FOUNDATION: $10k → 9%DUCKS UNLIMITED: $5k → 17%NATIONAL ALLIANCE ON MENTAL ILLNESS: $5k → 7%GARDEN CONSERVANCY INC: $3k → 6%ASPCA: $5k → 17%SALISBURY SCHOOL: $3k → 9%GREENWICH HOSPITAL FOUNDATION: $10k → 9%DUCKS UNLIMITED: $5k → 17%ASPCA: $5k → 17%SALISBURY SCHOOL: $3k → 9%GREENWICH HOSPITAL FOUNDATION: $10k → 9%SILVER HILL HOSPITAL: $3k → 9%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

NH
NY
MA
PA
CT
CA
VA
TN
DC
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.

99%of every dollar goes to organizations it has funded before.
$637k · 23 repeat orgs$4k to everyone else

23 repeat relationships: 20 still active in FY2025, 3 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

23
3

Total granted

$637k
$4k

Median revenue growth · since first grant

+49%
+55%

Still filing today

83%
33%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’18’19’20’21’22’23’24’25
HealthEducationEnvironmentArts & CultureHuman ServicesAnimalsOther
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

  • YN
    YALE NEW HAVEN HOSPITAL
    8× · 2018–2025 · $170k · revenue +56%
  • GH
    GREENWICH HOSPITAL
    8× · 2018–2025 · $81k · revenue +49%
  • SS
    SALISBURY SCHOOL INC
    8× · 2018–2025 · $70k · revenue +60%

Funded once

  • SO
    SOCIETY OF FELLOWSHIP
    one grant, 2024 · $3k
  • TG
    The Guilford Volunteer Fire Dept Inc
    one grant, 2018 · $1k · revenue -11%
  • CS
    CONNECTICUT STATE POLICE UNION INCgraduated
    one grant, 2021 · $100 · revenue +55%
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
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
2
Northeast Medical Group Inc

To render medical treatment to patients without regard to ability to pay for such treatment, and to promote a high quality of medical care and other services for the benefit of all persons in the communities it serves.

—
3
Bridgeport Hospital

To operate an acute care hospital in bridgeport, connecticut for the care and treatment of persons suffering from disease or other physical or mental conditions without regard to race, color, creed, sex, age or ability to pay.

Health
4
Lawrence Memorial Hospital Inc

To improve the health of the region and to provide healthcare services.

Health
5
Bridgton Hospital

To provide exceptional healthcare services in a safe and trustfulenvironment through the expertise, commitment, and compassion ofour family of caregivers.

Health
6
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
7
Neurology Associates of Stony Brook University Faculty Practice Corp

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
8
Lmw Healthcare Inc

To provide medical care in the westerly, rhode island community and surrounding towns.

Health
9
Nuvance Health Medical Practice Ct Inc

Improve the health of every person in our community through the efficient delivery of excellent, innovative and compassionate care.

—
10
Rumford Hospital

To provide exceptional healthcare services in a safe and trustfulenvironment through the expertise, commitment and compassion of ourfamily of caregivers.

Health
11
Stony Brook Surgical Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
12
The Children's Hospital of Philadelphia

The children's hospital of philadelphia, the oldest hospital in the united states dedicated exclusively to pediatrics, strives to be the world leader in the advancement of health care for children by integrating excellent patient care,…

Health
How this is measured
The grantee most central to the portfolio’s shape is Greenwich Emergency Medical Service Inc; the most unlike its peers is Glenville Volunteer Fire Co Inc. 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

23 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. 23 of the 27 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)
3
Early backer (in before they grew)
21/23
Grantees still filing
20/23
Grew since first funded

Where the money sits, by cause and then by grantee

YALE NEW HAVEN HOSPITAL: $170,000 · HealthYALE NEW HAVEN HOSPITALGREENWICH HOSPITAL: $81,000 · HealthGREENWICH HOSPITALNAMI National: $42,000 · HealthNAMI NationalSILVER HILL HOSPITAL INC: $14,500 · HealthSALISBURY SCHOOL INC: $70,000 · EducationSALISBURY SCHOOL…TRUSTEES OF DEERFIELD ACADEMY: $9,000 · EducationTRUSTEES OF DEER…TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $8,000 · EducationTRUSTEES OF THE …CARDIGAN MOUNTAIN SCHOOL: $5,000 · EducationCARDIGAN MOUNTAI…CANINE COMPANIONS FOR INDEPENDENCE INC: $40,000 · Human ServicesCANINE COMPAN…American National Red Cross & Its Constituent Chapters and Branches: $40,000 · Human ServicesAmerican Nati…DUCKS UNLIMITED: $36,000 · OtherDUCKS UNLIMI…NEW HAVEN COLONY HISTORICAL SOCIETY: $11,000 · OtherNEW HAVEN CO…GLENVILLE VOLUNTEER FIRE CO INC: $8,000 · OtherGLENVILLE VO…FAULKNERS LIGHT BRIGADE INC: $8,000 · OtherFAULKNERS LI…GREENWICH EMERGENCY MEDICAL SERVICE INC: $3,200 · OtherSOCIETY OF FELLOWSHIP: $2,500 · OtherWOODS HOLE OCEANOGRAPHIC INSTITUTION: $3,000 · Other+3 more: $1,900 · OtherTHE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $40,000 · AnimalsTHE GARDEN CONSERVANCY INC: $17,500 · EnvironmentTHE GREENWICH LAND TRUST INC: $8,000 · EnvironmentGuilford Land Conservation Trust Inc: $7,000 · EnvironmentFLORENCE GRISWOLD MUSEUM INC: $12,000 · Arts & CultureWOMEN & FAMILY LIFE CENTER INC: $6,000 · Arts & CultureCONNECTICUT PUBLIC BROADCASTING INC: $5,000 · Arts & Culture
Health$307,500Education$92,000Human Services$80,000Other$73,600Animals$40,000Environment$32,500Arts & Culture$23,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetYALE NEW HAVEN HOSPITAL: $170,000 over 8y, 0.0% of budgetGREENWICH HOSPITAL: $81,000 over 8y, 0.0% of budgetSALISBURY SCHOOL INC: $70,000 over 8y, 0.2% of budgetNAMI National: $42,000 over 8y, 0.1% of budgetTHE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $40,000 over 8y, 0.0% of budgetCANINE COMPANIONS FOR INDEPENDENCE INC: $40,000 over 8y, 0.0% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $40,000 over 8y, 0.0% of budgetTHE GARDEN CONSERVANCY INC: $17,500 over 7y, 0.1% of budgetSILVER HILL HOSPITAL INC: $14,500 over 7y, 0.0% of budgetFLORENCE GRISWOLD MUSEUM INC: $12,000 over 8y, 0.1% of budgetNEW HAVEN COLONY HISTORICAL SOCIETY: $11,000 over 7y, 0.2% of budgetTRUSTEES OF DEERFIELD ACADEMY: $9,000 over 8y, 0.0% of budgetTHE GREENWICH LAND TRUST INC: $8,000 over 8y, 0.1% of budgetGLENVILLE VOLUNTEER FIRE CO INC: $8,000 over 8y, 4.5% of budgetTRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $8,000 over 8y, 0.0% of budgetGuilford Land Conservation Trust Inc: $7,000 over 7y, 0.4% of budgetWOMEN & FAMILY LIFE CENTER INC: $6,000 over 8y, 0.2% of budgetCARDIGAN MOUNTAIN SCHOOL: $5,000 over 5y, 0.0% of budgetCONNECTICUT PUBLIC BROADCASTING INC: $5,000 over 5y, 0.0% of budgetGREENWICH EMERGENCY MEDICAL SERVICE INC: $3,200 over 8y, 0.0% of budgetWOODS HOLE OCEANOGRAPHIC INSTITUTION: $3,000 over 3y, 0.0% of budgetThe Guilford Volunteer Fire Dept Inc: $1,000 over 1y, 1.2% of budgetCONNECTICUT STATE POLICE UNION INC: $100 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.

  • Who funds YALE NEW HAVEN HOSPITAL ↗
  • Who funds GREENWICH HOSPITAL ↗
  • Who funds SALISBURY SCHOOL INC ↗
  • Who funds NAMI National ↗
  • Who funds THE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
  • Who funds CANINE COMPANIONS FOR INDEPENDENCE INC ↗
  • Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
  • Who funds THE GARDEN CONSERVANCY INC ↗
  • Who funds SILVER HILL HOSPITAL INC ↗
  • Who funds FLORENCE GRISWOLD MUSEUM INC ↗
  • Who funds NEW HAVEN COLONY HISTORICAL SOCIETY ↗
  • Who funds TRUSTEES OF DEERFIELD ACADEMY ↗
  • Who funds THE GREENWICH LAND TRUST INC ↗
  • Who funds GLENVILLE VOLUNTEER FIRE CO INC ↗
  • Who funds TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ↗
  • Who funds Guilford Land Conservation Trust Inc ↗
  • Who funds WOMEN & FAMILY LIFE CENTER INC ↗
  • Who funds CARDIGAN MOUNTAIN SCHOOL ↗
  • Who funds CONNECTICUT PUBLIC BROADCASTING INC ↗
  • Who funds GREENWICH EMERGENCY MEDICAL SERVICE INC ↗
  • Who funds WOODS HOLE OCEANOGRAPHIC INSTITUTION ↗
  • Who funds The Guilford Volunteer Fire Dept Inc ↗
  • Who funds CONNECTICUT STATE POLICE UNION INC ↗

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.

The David W Knapp Charitable FoundationOH13.6× affinity4 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: The David W Knapp Charitable Foundation · Ibm International Foundation · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 John F Maher Family Foundation funds: left to right is the share of its income from government, bottom to top the share from John F Maher Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 70%0%1%3%5%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →median 2%
  • Woods Hole Oceanographic Institution: 63% of income from government
  • Connecticut Public Broadcasting Inc: 3% of income from government
  • Florence Griswold Museum Inc: 2% of income from government
  • Yale New Haven Hospital: 0% of income from government
  • Greenwich Hospital: 0% of income from government
  • Silver Hill Hospital Inc: 0% of income from government
no gov moneyreceives it· size = income
7get no government money at all
3report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
⤢ axis zoomed · 0–75%
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 John F Maher Family Foundation?

Find your warmest path to John F Maher Family Foundation 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 27 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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