· 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2018–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k19 grants · $37k
- $10k–50k2 grants · $20k
| Recipient | Amount |
|---|---|
| GREENWICH HOSPITAL FOUNDATION | $10,000 |
| YALE-NEW HAVEN HOSPITAL | $10,000 |
| DUCKS UNLIMITED | $5,000 |
| AMERICAN RED CROSS | $5,000 |
| CANINE COMPANIONS FOR INDEPENDENCE | $5,000 |
| ASPCA | $5,000 |
| GARDEN CONSERVANCY INC | $2,500 |
| SALISBURY SCHOOL | $2,500 |
| DEERFIELD ACADEMY | $2,000 |
| GLENVILLE VOLUNTEER FIRE CO | $1,000 |
| FLORENCE GRISWOLD MUSEUM | $1,000 |
| GUILFORD LAND CONSERVATION TRUST | $1,000 |
| WOODS HOLE OCEANOGRAPHIC INSTITUTION | $1,000 |
| FAULKNER'S LIGHT BRIGADE | $1,000 |
| UNIVERSITY OF PENNSYLVANIA | $1,000 |
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.
Dollar for dollar, your grants (FY18–25) land where the poverty rate runs at 11%, against an area that typically sits at 12%. 24% of your 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.
23 repeat relationships — 20 still active in FY2025, 3 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 FY2025, 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
- YNYALE NEW HAVEN HOSPITAL8× · 2018–2025 · $170k · revenue +47%
- GHGREENWICH HOSPITAL8× · 2018–2025 · $81k · revenue +45%
- SSSALISBURY SCHOOL INC8× · 2018–2025 · $70k · revenue +60%
Funded once
- SOSOCIETY OF FELLOWSHIPone grant, 2024 · $3k
- TGThe Guilford Volunteer Fire Dept Incone grant, 2018 · $1k · revenue -11%
- CSCONNECTICUT STATE POLICE UNION INCgraduatedone grant, 2021 · $100 · revenue +55%
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 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…
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.
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.
To improve the health of the region and to provide healthcare services.
To provide exceptional healthcare services in a safe and trustfulenvironment through the expertise, commitment, and compassion ofour family of caregivers.
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
To provide medical care in the westerly, rhode island community and surrounding towns.
Improve the health of every person in our community through the efficient delivery of excellent, innovative and compassionate care.
To provide exceptional healthcare services in a safe and trustfulenvironment through the expertise, commitment and compassion of ourfamily of caregivers.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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,…
For reference, the grantee most central to the portfolio’s shape is Greenwich Emergency Medical Service Inc and 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.
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 57 years old; the field is 21. You back the established end — and your money leans older still.
The field is 18% 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 10% 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.
23 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. 23 of the 27 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 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 ↗
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: 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
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 John F Maher Family 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.
- 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
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.
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.