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Harry F Mariani Family Foundation at a glanceMostly funded, not a grantmaker: see who funds it →

· Private foundation

Harry F Mariani 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.

$272k
Granted FY2025still arriving
14
Grants FY2025still arriving
6
States reached
$68k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2025.

Health$673kEnvironment$192kEducation$154kRecreation & Sports$125kHuman Services$54kArts & Culture$27kHousing & Shelter$26kCrime & Legal$25kOther$0
02FY2025 · 14 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k6 grants · $14k
  • $10k–50k5 grants · $84k
  • $50k–250k3 grants · $174k
$10,000
Median grant
6
States reached
$5.8M
Total assets
Largest grants
RecipientAmount
TISCH MULTIPLE SCLEROSIS RESEARCH CENTER NEW YORK INC$68,000
NORTHWELL HEALTH FOUNDATION$56,000
THE BEAUFORT COUNTY OPEN LAND TRUST INC$50,000
PINGREE SCHOOL$27,000
UNIVERSITY OF NOTRE DAME$25,000
THE DON MONTI MEMORIAL RESEARCH FOUNDATION$12,000
TULANE UNIVERSITY$10,000
COASTAL CONSERVATION ASSOCIATION SOUTH CAROLINA$10,000
ST JOSEPH'S CHILDREN'S HOSPITAL TAMPA$4,000
COMMUNITY DISPUTE SETTLEMENT CENTER$3,000
MINUTEMAN SENIOR SERVICES$3,000
LOWCOUNTRY FOOD BANK$1,500
NORTH CHARLESTON ANIMAL SOCIETY$1,500
ONE80 PLACE$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:

Its human-services grants (FY21–25, $22k) land where the poverty rate runs at 8%, against an area that typically sits at 7%. 91% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 7%WINCHESTER ABC: $4k → 8%THIRD OPTION FOUNDATION: $2k → 6%WINCHESTER ABC: $3k → 8%WINCHESTER ABC: $2k → 8%MINUTEMAN SENIOR SERVICES: $3k → 8%MINUTEMAN SENIOR SERVICES: $3k → 8%MINUTEMAN SENIOR SERVICES: $3k → 8%MINUTEMAN SENIOR SERVICES: $2k → 8%NEIGHBORS TOGETHER: $1k → 12%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

IL
NY
MA
IN
CT
VA
TN
SC
DC
TX
FL
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.

95%of every dollar goes to organizations it has funded before.
$1.1M · 26 repeat orgs$55k to everyone else

26 repeat relationships: 13 still active in FY2025, 13 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

26
11

Total granted

$1.1M
$55k

Median revenue growth · since first grant

+11%
+74%

Still filing today

77%
73%

New vs renewed · share of each year

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

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

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

’21’22’23’24’25
HealthEducationHuman ServicesHousing & ShelterCrime & LegalAnimalsOther
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

  • THE PINGREE SCHOOL INC
    5× · 2021–2025 · $77k · revenue +26%
  • TD
    The Don Monti Memorial Research Foundation Inc
    4× · 2021–2025 · $44k · revenue +28%
  • TA
    THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
    3× · 2023–2025 · $30k · revenue +16%

Funded once

  • SI
    Sea Island Habitat For Humanity Incgraduated
    one grant, 2021 · $10k · revenue +74%
  • FT
    FIRST TEE GREATER CHARLESTONgraduated
    one grant, 2021 · $10k · revenue +312%
  • BM
    BEAUFORT MEMORIAL HOSPITAL FOUNDATIONgraduated
    one grant, 2023 · $10k · revenue +208%
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 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
3
Trustees of Dartmouth College

Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.

Education
4
Lenox Hill Hospital

Lenox hill hospital is part of northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and future generations…

Health
5
North Shore University Hospital

North shore university hospital is part of northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and future…

Health
6
South Shore University Hospital

South shore university hospital is part of northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and future…

Health
7
Boston Architectural College

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

—
8
Newport Hospital Foundation

NHF supports, encourages and coordinates the development of comprehensive, integrated health care-related services for the advancement and well-being of the community, in furtherance of the purposes of Newport Hospital (see Schedule O)

Health
9
Bon Secours New York Health System Inc

Bon secours new york health system, inc. (bsnyhs) is the parent and central organization of an established integrated healthcare delivery system.

—
10
Lenox Hill Hospital Medical Pc

Lenox hill hospital medical, pc is part of northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and future…

Health
11
Saint Anselm College

Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…

Education
12
Mercy Health

Mercy Health will provide assistance, support and direction to all of the health care institutions and activities operated and maintained by its Subsidiaries. The mission of Mercy Health in performing these activities shall be to provide a…

—
How this is measured
The grantee most central to the portfolio’s shape is Youth Advocacy Foundation Inc; the most unlike its peers is University of Notre Dame du Lac. 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

29 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. 29 of the 38 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)
4
Early backer (in before they grew)
29/29
Grantees still filing
19/29
Grew since first funded

Where the money sits, by cause and then by grantee

TISCH MULTIPLE SCLEROSIS RESEARCH CENTER OF NEW YORK INC: $290,000 · HealthTISCH MULTIPLE SCLEROSIS RESEARCH CENTER OF NEW YO…NORTHWELL HEALTH FOUNDATION: $267,000 · HealthNORTHWELL HEALTH FOUNDATION+3 more: $32,000 · Health+3 moreUniversity of Notre Dame du Lac: $125,000 · EducationUniversity of Notre D…THE PINGREE SCHOOL INC: $77,000 · EducationTHE PINGREE SCHOOL IN…THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND: $30,000 · EducationTHE ADMINISTRATORS OF…THE HOWARD UNIVERSITY: $11,000 · Education+1 more: $5,000 · EducationThe Don Monti Memorial Research Foundation Inc: $44,000 · OtherThe Don Monti Memorial …MERCY HOME FOR BOYS AND GIRLS: $40,000 · OtherMERCY HOME FOR BOYS AND…COASTAL CONSERVATION ASSOCIATION SOUTH CAROLINA: $35,000 · OtherCOASTAL CONSERVATION AS…ST JOSEPH'S CHILDREN'S HOSPITAL TAMPA: $31,500 · OtherST JOSEPH'S CHILDREN'S …TOMORROW'S HOPE FOUNDATION INC: $15,000 · OtherTOMORROW'S HOPE FOUNDAT…CORNELL HOTEL SOCIETY: $14,000 · OtherLOWCOUNTRY FOOD BANK INC: $13,750 · OtherSea Island Habitat For Humanity Inc: $10,000 · OtherCHARLESTON ANIMAL SOCIETY: $11,000 · OtherFIRST TEE GREATER CHARLESTON: $10,000 · Other+10 more: $52,000 · Other+10 moreBEAUFORT COUNTY OPEN LAND TRUST: $145,000 · EnvironmentBEAUFORT COU…MINUTEMAN SENIOR SERVICES INC: $10,500 · Human ServicesWinchester Committee for A Better Chance: $8,500 · Human ServicesTHIRD OPTION FOUNDATION: $2,000 · Human ServicesNeighbors Together Inc: $1,250 · Human ServicesOne-Eighty Place: $9,500 · Housing & ShelterHEADING HOME INC: $6,500 · Housing & ShelterCOMMUNITY DISPUTE SETTLEMENT CENTER INC: $15,500 · Crime & Legal
Health$589,000Education$248,000Other$276,250Environment$145,000Human Services$22,250Housing & Shelter$16,000Crime & Legal$15,500

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 budgetTISCH MULTIPLE SCLEROSIS RESEARCH CENTER OF NEW YORK INC: $290,000 over 5y, 0.7% of budgetNORTHWELL HEALTH FOUNDATION: $267,000 over 5y, 0.1% of budgetBEAUFORT COUNTY OPEN LAND TRUST: $145,000 over 4y, 2.4% of budgetUniversity of Notre Dame du Lac: $125,000 over 5y, 0.0% of budgetTHE PINGREE SCHOOL INC: $77,000 over 5y, 0.1% of budgetThe Don Monti Memorial Research Foundation Inc: $44,000 over 4y, 2.9% of budgetTHE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND: $30,000 over 3y, 0.0% of budgetCOMMUNITY DISPUTE SETTLEMENT CENTER INC: $15,500 over 5y, 0.8% of budgetTOMORROW'S HOPE FOUNDATION INC: $15,000 over 2y, 11% of budgetLOWCOUNTRY FOOD BANK INC: $13,750 over 4y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $11,000 over 3y, 0.0% of budgetChildren's Hospital Corporation: $11,000 over 3y, 0.0% of budgetCHARLESTON ANIMAL SOCIETY: $11,000 over 5y, 0.0% of budgetTHE HOWARD UNIVERSITY: $11,000 over 3y, 0.0% of budgetMINUTEMAN SENIOR SERVICES INC: $10,500 over 4y, 0.0% of budgetSea Island Habitat For Humanity Inc: $10,000 over 1y, 0.3% of budgetFIRST TEE GREATER CHARLESTON: $10,000 over 1y, 0.8% of budgetBEAUFORT MEMORIAL HOSPITAL FOUNDATION: $10,000 over 1y, 0.4% of budgetOne-Eighty Place: $9,500 over 4y, 0.0% of budgetYOUTH ADVOCACY FOUNDATION INC: $9,000 over 3y, 0.4% of budgetWinchester Committee for A Better Chance: $8,500 over 3y, 1.4% of budgetTHE FENN SCHOOL: $7,500 over 3y, 0.0% of budgetAMERICAN FRIENDS OF THE LONDON PHILHARMONIC ORCHESTRA INC: $7,500 over 2y, 1.3% of budgetHEADING HOME INC: $6,500 over 3y, 0.0% of budgetWilliams College: $5,000 over 1y, 0.0% of budgetPINK AID INC: $3,000 over 1y, 0.2% of budgetST FRANCIS FOOD PANTRIES AND SHELTERS INC: $3,000 over 1y, 0.2% of budgetTHIRD OPTION FOUNDATION: $2,000 over 1y, 0.0% of budgetNeighbors Together Inc: $1,250 over 1y, 0.1% 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.

Banfi Vintners Founda…Coastal Community Fou…Dominion Energy Chari…Boston Foundation IncMorgan Stanley Global…Davis Family Foundati…Analog Devices Founda…Gs Donor Advised Phil…National Philanthropi…Jewish Communal FundJpmorgan Chase Founda…The Pfizer Foundation…
Banfi Vintners FoundationNY24.2× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Banfi Vintners Foundation · Coastal Community Foundation of South Carolina Inc · Dominion Energy Charitable Foundation · Boston Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · Davis Family Foundation Inc · Analog Devices Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · National Philanthropic Trust · Jewish Communal Fund · Jpmorgan Chase Foundation · The Pfizer Foundation 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 Harry F Mariani Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Harry F Mariani Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 40%1%4%8%15%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 10%
  • Minuteman Senior Services Inc: 73% of income from government
  • Heading Home Inc: 17% of income from government
  • Children's Hospital Corporation: 10% of income from government
  • Youth Advocacy Foundation Inc: 1% of income from government
  • Williams College: 0% of income from government
no gov moneyreceives it· size = income
4get no government money at all
5report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
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 Harry F Mariani Family Foundation?

Find your warmest path to Harry F Mariani 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 38 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

Play a game based on Harry F Mariani Family’s filings →

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