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· Private foundation

Al & Peggy Dematteis Family Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$177k
Granted FY2025still arriving
283
Grants FY2025still arriving
30
States reached
$12k
Largest
01What it funds
0195% classified

What it funded, over time

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

Religion$220kHuman Services$177kEducation$167kHealth$122kPhilanthropy$72kInternational$65kFood & Nutrition$37kArts & Culture$35kOther$0
02FY2025 · 283 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k282 grants · $165k
  • $10k–50k1 grant · $12k
$400
Median grant
30
States reached
$3.0M
Total assets
Largest grants
RecipientAmount
ST FRANCIS DE SALES RC CHURCH$11,560
ST FRANCIS DE SALES (CAPITAL CAMPAIGN)$9,000
ZOLLER MEMORIAL FUND$6,000
HEARTSHARE HUMAN SERVICES$4,750
CATHOLIC CHARITIES (DOB)$3,250
TOMORROW'S HOPE FOUNDATION II$3,250
HEARTS TO HOMES FURNISHINGS$3,025
GIFT OF LIFE INTERNATIONAL$3,000
Individual grant recipient$2,850
ANNUAL CATHOLIC APPEAL DOB$2,500
FUTURES IN EDUCATION FOUNDATION$2,500
GRAYBEARDS LTD$2,500
SOLUTION TO HUNGER$2,100
Individual grant recipient$2,000
ST EDMUND PREP HIGH SCHOOL$1,780
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, $97k) land where the poverty rate runs at 13%, against an area that typically sits at 10%. 78% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%RISING GROUND: $1k → 9%ROBERT IRVINE FOUNDATION: $500 → 13%SHARE THE MAGIC FOUNDATION: $750 → 13%HEARTS4GUATEMALA: $1k → 17%GOOD COUNSEL HOMES: $600 → 14%RISING GROUND: $1k → 9%SHARE THE MAGIC FOUNDATION: $500 → 13%HEARTS4GUATEMALA: $1k → 17%OASIS - HAVEN FOR WOMEN & CHILDREN: $650 → 12%PROJECT HOME: $600 → 22%RISING GROUND: $500 → 9%SHARE THE MAGIC FOUNDATION: $500 → 13%H(E)ARTS 4 GUATEMALA: $950 → 17%RISING GROUND: $500 → 9%H(E)ARTS 4 GUATEMALA: $500 → 17%NORTH WARD CENTER: $500 → 16%NORTH LIGHT COMMUNITY CENTER: $725 → 22%FULFILL: $600 → 6%FRANCISCAN CHARITIES INC: $1k → 16%FRANCISCAN CHARITIES INC: $1k → 16%FRANCISCAN CHARITIES INC: $1k → 16%FRANCISCAN CHARITIES INC: $500 → 16%HOUR CHILDREN: $500 → 13%FATHERS DAY MOTHERS DAY COUNCIL: $500 → 17%DELIVERING GOODS: $500 → 17%FRIENDS OF SEAN LUGANO: $1k → 9%DELIVERING GOODS: $500 → 17%LITTLE FLOWER: $800 → 7%FROM HERE TO HAITI LTD: $700 → 13%GUILD FOR EXCEPTIONAL CHILDREN: $850 → 20%GUILD FOR EXCEPTIONAL CHILDREN: $600 → 20%GRAYBEARDS LTD: $9k → 13%GRAYBEARDS LTD: $8k → 13%GRAYBEARDS LTD: $5k → 13%GRAYBEARDS LTD: $3k → 13%GRAYBEARDS LTD: $3k → 13%GRAYBEARDS LTD: $750 → 13%A CHANCE IN LIFE: $3k → 17%A CHANCE IN LIFE: $3k → 17%A CHANCE IN LIFE: $2k → 17%A CHANCE IN LIFE: $1k → 17%A CHANCE IN LIFE: $1k → 17%A CHANCE IN LIFE: $800 → 17%HAIR WE SHARE: $1k → 6%FAMILY AND CHILDREN'S ASSOCIATION: $2k → 6%FAMILY AND CHILDREN'S ASSOCIATION: $2k → 6%FAMILY AND CHILDREN'S ASSOCIATION: $1k → 6%FAMILY AND CHILDREN'S ASSOCIATION: $710 → 6%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
WA
MN
IL
WI
MI
NY
MA
OR
NV
IN
OH
PA
NJ
CT
RI
CA
UT
CO
MO
KY
VA
MD
DE
AZ
KS
TN
NC
SC
DC
LA
MS
GA
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.

85%of every dollar goes to organizations it has funded before.
$922k · 331 repeat orgs$157k to everyone else

Grantees it renews have grown median revenue +21% since the first grant, against 0% for those funded once.

331 repeat relationships: 203 still active in FY2025, 128 since wound down; 78 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

331
285

Total granted

$922k
$122k

Median revenue growth · since first grant

+21%
0%

Still filing today

52%
48%

New vs renewed · share of each year

In FY2025, 80% of grant dollars renewed an existing relationship; $35k 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
Human ServicesHealthEducationPhilanthropyInternationalArts & CultureOther
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

  • GL
    GRAYBEARDS LTD
    6× · 2020–2025 · $28k · revenue +62%
  • LS
    LEARNINGSPRING SCHOOL
    6× · 2020–2025 · $20k · revenue +25%
  • AC
    A CHANCE IN LIFEINC
    6× · 2020–2025 · $10k · revenue +63%

Funded once

  • LS
    LA SALLE ACADEMY
    one grant, 2023 · $5k
  • Fairfield Universitygraduated
    one grant, 2021 · $5k · revenue +63%
  • ED
    EMPIRE DRAGONS NYC INC
    one grant, 2020 · $2k · revenue -61%
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
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
2
Samuel Waxman Cancer Research Foundation

The samuel waxman cancer research foundation (the "foundation") funds innovative research to bring faster cures to patients. in addition to supporting ongoing collaborative research in specific cancers, our scientists are investigating the…

—
3
Staten Island University Hospital Foundation

The mission of staten island university hospital's foundation is to achieve philanthropic relationships for support and endowment, providing highest quality care, services and state of the art equipment. philanthropy has played an…

Health
4
New York Blood Center Inc

As one of the most preeminent and comprehensive blood centers in theworld, nybc operates under a four-part mission. for more information,see sch. o and part iii, 4a-c.

Health
5
Foundation for Sarcoidosis Research

The foundation for sarcoidosis research (fsr) is the leading international organization dedicated to finding a cure for sarcoidosis and improving care for sarcoidosis patients through research, education, and support. since its…

Philanthropy
6
City of Hope

City of Hope's mission is to make hope a reality for all touched by cancer and diabetes. PLEASE SEE SCHEDULE O FOR A CONTINUATION OF OUR MISSION

Health
7
Catholic Health System of Long Island

We, at ch, humbly join together to bring christ's healing mission and the mission of mercy of the catholic church expressed in catholic health care to our communities

—
8
Children's Tumor Foundation

Our mission: drive research, expand knowledge, and advance care for the nf community. our vision: end nf.

Health
9
Rockefeller Philanthropy Advisors Inc

Rockefeller philanthropy advisors aims to accelerate philanthropy in pursuit of a just world

Philanthropy
10
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
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
Good Samaritan Hospital Medical Center

We, at ch, humbly join together to bring christs healing mission and the mission of mercy of the catholic church expressed in catholic health care to our communities.

Health
How this is measured
The grantee most central to the portfolio’s shape is New York Cares Inc; the most unlike its peers is Wake Forest University. 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

356 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. 356 of the 699 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.

1
Load-bearing (≥25% of a budget)
59
Early backer (in before they grew)
342/356
Grantees still filing
196/356
Grew since first funded

Where the money sits, by cause and then by grantee

ST FRANCIS DE SALES RC CHURCH: $70,846 · OtherST FRANCIS DE SALES RC CHURCHCATHOLIC CHARITIES (DOB): $25,525 · OtherZOLLER MEMORIAL FUND: $20,450 · Other+128 more: $452,926 · Other+128 moreLEARNINGSPRING SCHOOL: $19,500 · EducationLEARNINGSPR…WAKE FOREST UNIVERSITY: $7,600 · EducationWAKE FOREST…UNSUNG SIBLINGS FOUNDATION INC: $7,420 · EducationUNSUNG SIBL…BLUE WHITE SCHOLARSHIP FOUNDATION: $5,600 · EducationBLUE WHITE …VILLANOVA UNIVERSITY: $5,300 · EducationVILLANOVA U…Fairfield University: $5,000 · EducationFairfield U…ADVENTURES IN LEARNING INC: $4,975 · EducationADVENTURES …ST JOHN'S UNIVERSITY NEW YORK: $4,000 · EducationST FRANCIS COLLEGE: $3,275 · EducationTHE WINSTON PREPARATORY SCHOOL: $3,250 · EducationBAY RIDGE PREPARATORY SCHOOL: $3,000 · Education+7 more: $13,153 · Education+7 moreGRAYBEARDS LTD: $28,257 · Human ServicesGRAYBEARDS…A CHANCE IN LIFEINC: $10,340 · Human ServicesA CHANCE I…FAMILY AND CHILDREN'S ASSOCIATION INC: $6,683 · Human ServicesFAMILY AND…FRANCISCAN CHARITIES: $4,250 · Human ServicesFRANCISCAN…HEARTS4GUATEMALA INC: $4,100 · Human ServicesRISING GROUND INC: $3,500 · Human Services+12 more: $22,259 · Human Services+12 moreGIFT OF LIFE INTERNATIONAL INC: $9,350 · HealthST FRANCIS HOSPITAL FOUNDATION INC: $8,250 · HealthNATIONAL FOUNDATION FOR ECTODERMAL DYSPLASIAS: $3,110 · HealthRICHMOND COMMUNITY SERVICES FOUNDATION INC: $2,850 · HealthAMERICAN-ITALIAN CANCER FOUNDATION: $2,750 · HealthBLOOD CANCER UNITED INC: $2,500 · HealthTHE MAURER FOUNDATION FOR BREAST HEALTH EDUCATION INC: $2,350 · HealthOUR CREATE HOPE FOUNDATION INC: $2,150 · HealthEMPIRE DRAGONS NYC INC: $2,000 · HealthHELPHOPELIVE INC: $1,700 · HealthTHE V FOUNDATION: $1,600 · HealthBREAKTHROUGH T1D: $1,500 · HealthCOLORECTAL CANCER ALLIANCE: $1,500 · Health+2 more: $2,750 · HealthHEARTS TO HOMES FURNISHINGS INC: $9,515 · PhilanthropyTOMORROWS HOPE FOUNDATION II INC: $5,700 · PhilanthropyFUND FOR THE CITY OF NEW YORK INC: $4,500 · PhilanthropyROCCO STRONG INC: $4,400 · PhilanthropyFRANCES POPE MEMORIAL FOUNDATION INC: $3,300 · PhilanthropyNICHOLAS CENTER LTD: $1,876 · PhilanthropyRichard M Brodsky Foundation: $1,500 · PhilanthropyAGAPE GLOBAL LTD: $4,100 · InternationalRESURGE INTERNATIONAL: $2,650 · InternationalPROJECT DYNAMO INC: $2,380 · InternationalRAZOM INC: $1,956 · InternationalSAVE VENICE INC: $1,750 · InternationalMary's Meals USA Inc: $1,600 · InternationalSUDAN RELIEF FUND INC: $1,566 · InternationalSpirit of America Worldwide: $1,350 · InternationalEPIC CURE INC: $6,400 · Youth DevelopmentLEAD Girls of NC Inc: $5,500 · Youth DevelopmentPOLICE ATHLETIC LEAGUE INC: $1,500 · Youth Development
Other$569,747Education$82,073Human Services$79,389Health$44,360Philanthropy$30,791International$17,352Youth Development$13,400

Showing the 200 largest grantees by grant value.

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

25%50%75%100%$10k$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetGRAYBEARDS LTD: $28,257 over 6y, 2.1% of budgetLEARNINGSPRING SCHOOL: $19,500 over 6y, 0.1% of budgetA CHANCE IN LIFEINC: $10,340 over 6y, 0.1% of budgetHEARTS TO HOMES FURNISHINGS INC: $9,515 over 6y, 0.5% of budgetGIFT OF LIFE INTERNATIONAL INC: $9,350 over 6y, 0.1% of budgetST FRANCIS HOSPITAL FOUNDATION INC: $8,250 over 6y, 0.0% of budgetTEAM RUBICON INC: $7,950 over 6y, 0.0% of budgetWAKE FOREST UNIVERSITY: $7,600 over 6y, 0.0% of budgetUNSUNG SIBLINGS FOUNDATION INC: $7,420 over 6y, 0.8% of budgetCATERING FOR THE HOMELESS INC: $6,900 over 6y, 2.0% of budgetFAMILY AND CHILDREN'S ASSOCIATION INC: $6,683 over 6y, 0.0% of budgetEPIC CURE INC: $6,400 over 6y, 0.1% of budgetTOMORROWS HOPE FOUNDATION II INC: $5,700 over 3y, 0.0% of budgetBLUE WHITE SCHOLARSHIP FOUNDATION: $5,600 over 6y, 0.3% of budgetLEAD Girls of NC Inc: $5,500 over 6y, 0.3% of budgetVILLANOVA UNIVERSITY: $5,300 over 5y, 0.0% of budgetPLAY RUGBY INC: $5,085 over 3y, 0.3% of budgetFairfield University: $5,000 over 1y, 0.0% of budgetADVENTURES IN LEARNING INC: $4,975 over 6y, 0.1% of budgetCOLUMBUS CITIZENS FOUNDATION INC: $4,820 over 5y, 0.0% of budgetCRISTO REY BROOKLYN HIGH SCHOOL: $4,560 over 6y, 0.0% of budgetFUND FOR THE CITY OF NEW YORK INC: $4,500 over 5y, 0.0% of budgetROCCO STRONG INC: $4,400 over 2y, 1.4% of budgetAMERICAN LITTORAL SOCIETY: $4,250 over 6y, 0.1% of budgetFRANCISCAN CHARITIES: $4,250 over 4y, 0.2% of budgetAGAPE GLOBAL LTD: $4,100 over 4y, 0.2% of budgetHEARTS4GUATEMALA INC: $4,100 over 5y, 1.4% of budgetST JOHN'S UNIVERSITY NEW YORK: $4,000 over 6y, 0.0% of budgetSeatuck Environmental Association Inc: $3,900 over 6y, 0.1% of budgetRISING GROUND INC: $3,500 over 6y, 0.0% of budgetFRANCES POPE MEMORIAL FOUNDATION INC: $3,300 over 5y, 0.8% of budgetST FRANCIS COLLEGE: $3,275 over 5y, 0.0% of budgetTHE WINSTON PREPARATORY SCHOOL: $3,250 over 4y, 0.0% of budgetNATIONAL FOUNDATION FOR ECTODERMAL DYSPLASIAS: $3,110 over 6y, 0.1% of budgetSEA SHEPHERD CONSERVATION SOCIETY: $3,100 over 6y, 0.0% of budgetTUESDAY'S CHILDREN: $3,090 over 4y, 0.1% of budgetBAY RIDGE PREPARATORY SCHOOL: $3,000 over 3y, 0.0% of budgetSPECIAL OLYMPICS NEW YORK INC: $2,980 over 6y, 0.0% of budgetRICHMOND COMMUNITY SERVICES FOUNDATION INC: $2,850 over 6y, 0.2% of budgetAMERICAN-ITALIAN CANCER FOUNDATION: $2,750 over 6y, 0.0% of budgetNATIONAL FOUNDATION FOR FACIAL RECONSTRUCTION INC: $2,750 over 5y, 0.0% of budgetRESURGE INTERNATIONAL: $2,650 over 5y, 0.0% of budgetOPENING WORD PROGRAM INC: $2,600 over 6y, 0.3% of budgetBLOOD CANCER UNITED INC: $2,500 over 6y, 0.0% of budgetTHE GUILD FOR EXCEPTIONAL CHILDREN INC: $2,500 over 5y, 0.0% of budgetSTUDENTSPONSOR PARTNERS INC: $2,500 over 3y, 0.0% of budgetGaribaldi Meucci Museum: $2,410 over 4y, 0.6% of budgetJACK BREWER FOUNDATION: $2,400 over 2y, 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.

  • Who funds GRAYBEARDS LTD ↗
  • Who funds LEARNINGSPRING SCHOOL ↗
  • Who funds A CHANCE IN LIFEINC ↗
  • Who funds HEARTS TO HOMES FURNISHINGS INC ↗
  • Who funds GIFT OF LIFE INTERNATIONAL INC ↗
  • Who funds ST FRANCIS HOSPITAL FOUNDATION INC ↗
  • Who funds TEAM RUBICON INC ↗
  • Who funds WAKE FOREST UNIVERSITY ↗
  • Who funds UNSUNG SIBLINGS FOUNDATION INC ↗
  • Who funds CATERING FOR THE HOMELESS INC ↗
  • Who funds FAMILY AND CHILDREN'S ASSOCIATION INC ↗
  • Who funds EPIC CURE INC ↗
  • Who funds TOMORROWS HOPE FOUNDATION II INC ↗
  • Who funds BLUE WHITE SCHOLARSHIP FOUNDATION ↗
  • Who funds LEAD Girls of NC Inc ↗
  • Who funds VILLANOVA UNIVERSITY ↗
  • Who funds PLAY RUGBY 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.

Mother Cabrini Health Foundation IncNY34.1× affinity22 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Mother Cabrini Health Foundation Inc · The Hyde and Watson Foundation · Lostritto Family Foundation · The Goldman Sachs Charitable Gift Fund · Brooklyn Community Foundation · Mutual of America Foundation · Robin Hood Foundation · Webster Bank Charitable Foundation · The Leandro P Rizzuto Foundation · Posillico Foundation Inc · Peter & Jeri Dejana Foundation · Iris & Saul Katz Family 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 Al & Peggy Dematteis Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Al & Peggy Dematteis Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 90%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 1%
  • Save the Sound: 37% of income from government
  • Children's Hospital Corporation: 10% of income from government
  • Fairfield University: 1% of income from government
  • American Littoral Society: 1% of income from government
  • Yellow Ribbon Fund Inc: 0% of income from government
  • The Bottom Line Inc: 0% of income from government
no gov moneyreceives it· size = income
9get no government money at all
47report government grants on their 990 we could not trace to a source (not plotted)
0rely 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 Al & Peggy Dematteis Family Foundation?

Find your warmest path to Al & Peggy Dematteis 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 699 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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