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John L Dimarco Sr Family Foundation at a glance

· Private foundation

John L Dimarco Sr Family Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$276k
Granted FY2024still arriving
18
Grants FY2024still arriving
1
States reached
$55k
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, FY2018 to 2024.

Education$653kHealth$224kPhilanthropy$180kHuman Services$143kHousing & Shelter$55kArts & Culture$10kPublic Safety & Disaster$10kYouth Development$10kOther$0
02FY2024 · 18 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k3 grants · $9k
  • $10k–50k14 grants · $212k
  • $50k–250k1 grant · $55k
$10,000
Median grant
1
States reached
$8.6M
Total assets
Largest grants
RecipientAmount
SHEPHERD HOME$55,000
MERCY FLIGHT CENTRAL$25,000
GREATER ROCHESTER HABITAT FOR HUMANITY$25,000
MCQUAID JESUIT HIGH SCHOOL$20,100
UNITED WAY OF ROCHESTER$20,000
HIGHLAND HOSPITAL$20,000
NANCY & FRIENDS FIGHTING CANCER INC$20,000
RYAN CALLAHAN FOUNDATION INC$12,000
DAYSTAR KIDS$10,000
GIGI'S PLAYHOUSE OF ROCHESTER$10,000
NATIVITY PREPATORY ACADEMY$10,000
JUNIOR ACHIEVEMENT OF CENTRAL UPSTATE NY$10,000
AMERICAN RED CROSS$10,000
UNITED WAY OF ROCHESTER$10,000
TUNNEL TO TOWERS FOUNDATION$10,000
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 (FY19–24, $125k) land where the poverty rate runs at 14%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%BEYOND THE SANCTUARY: $5k → 14%SHEPHERD HOME: $55k → 14%HOUSE OF MERCY: $10k → 14%HOUSE OF MERCY: $10k → 14%HOUSE OF MERCY: $10k → 14%YMCA OF GREATER ROCHESTER: $10k → 14%YMCA OF GREATER ROCHESTER: $10k → 14%DAYSTAR KIDS: $10k → 14%DAYSTAR KIDS: $5k → 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.
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 37% of John L Dimarco Sr Family Foundation’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 93% of the giving stays in NY; by stated purpose, 56%.

John L Dimarco Sr Family Foundationlessmore of its giving
Placed by recipient address
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

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

79%of every dollar goes to organizations it has funded before.
$1.0M · 11 repeat orgs$266k to everyone else

Grantees it renews have grown median revenue +83% since the first grant, against 0% for those funded once.

11 repeat relationships: 7 still active in FY2024, 4 since wound down; 10 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

11
7

Total granted

$1.0M
$115k

Median revenue growth · since first grant

+83%
0%

Still filing today

64%
57%

New vs renewed · share of each year

In FY2024, 45% of grant dollars renewed an existing relationship; $151k went to new ones.

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

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

’18’19’20’21’22’23’24
Human ServicesHealthEducationCommunity ImprovementPublic BenefitInternationalOther
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

  • UNIVERSITY OF ROCHESTER
    2× · 2022–2023 · $92k · revenue +30%
  • MF
    MERCY FLIGHT CENTRAL INC
    2× · 2022–2024 · $53k · revenue +67%
  • STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION
    3× · 2022–2024 · $50k · revenue +83%

Funded once

  • TB
    THE BRETT BOYER FOUNDATION INCgraduated
    one grant, 2023 · $90k · revenue +44%
  • NP
    NATIVITY PREPARATORY ACADEMY
    one grant, 2020 · $10k
  • OL
    OUR LADY OF MERCY
    one grant, 2023 · $5k
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
Carefirst Ny Inc

It is the mission of carefirst ny, inc. to affirm life through extraordinary, compassionate support and care to patients and families in chemung, steuben and schuyler counties.

—
2
Rochester General Health System

Rochester general health system, provides patient care, senior housing, laboratory services, and community outreach to residents and other clients in monroe county, new york and several surrounding counties.

Health
3
St Francis Hospital Foundation Inc

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.

Health
4
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.

—
5
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…

—
6
Mercy Medical Center

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.

Health
7
Ronald McDonald House Charities New York Metro Inc

Our Mission is to provide essential services that remove barriers, strengthen families, and promote healing when children need healthcare.

—
8
Saratoga Care Inc

To serve the people of the Saratoga region by providing them access to excellence in healthcare in a supportive and caring environment.

Health
9
Brighton Marine Inc

Brighton marine, inc. provides military and veteran families with comprehensive campus-based quality health care, as well as affordable and supportive housing for at-risk veterans and their families.

Health
10
Bridgton Hospital

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

Health
11
Ronald McDonald House Charities of Greater Charlotte Inc

Ronald McDonald House Charities of Greater Charlotte (RMHC of GC) provides essential services that remove barriers, strengthen families, and promote healing when children need healthcare. Charlotte is recognized as a leading destination…

Human Services
12
St Catherine of Siena Medical Center

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.

Health
How this is measured
The grantee most central to the portfolio’s shape is Mercy Flight Central Inc; the most unlike its peers is Pride of Ontario County Blue Star Mothers Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

16 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. 16 of the 28 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)
3
Early backer (in before they grew)
16/16
Grantees still filing
8/16
Grew since first funded

Where the money sits, by cause and then by grantee

MCQUAID JESUIT HIGH SCHOOL: $470,300 · OtherMCQUAID JESUIT HIGH SCHOOLUNITED WAY OF ROCHESTER: $180,000 · OtherUNITED WAY OF ROCHESTERLEWIS STREET YMCA CHILD CARE CENTER: $50,000 · OtherLEWIS STREET YMCA CHILD CARE CENTERNATIVITY PREPATORY ACADEMY: $30,000 · Other+8 more: $82,000 · Other+8 moreTHE BRETT BOYER FOUNDATION INC: $90,250 · HealthTHE BRETT BO…NANCY & FRIENDS FIGHTING CANCER INC: $40,000 · HealthNANCY & FRIE…RYAN CALLAHAN FOUNDATION INC: $12,000 · HealthRYAN CALLAHA…+1 more: $1,000 · HealthUNIVERSITY OF ROCHESTER: $92,000 · EducationUNIVERSITY O…STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION: $50,000 · EducationSTEPHEN SILL…Shepherd Home Inc: $55,000 · Human ServicesShepherd H…HOUSE OF MERCY INC: $30,000 · Human ServicesHOUSE OF M…YMCA OF GREATER ROCHESTER (4368): $20,000 · Human ServicesYMCA OF GR…DAYSTAR FOR MEDICALLY FRAGILE CHILDREN D/B/A DAYSTAR KIDS: $15,000 · Human ServicesDAYSTAR FO…BEYOND THE SANCTUARY: $5,000 · Human ServicesMERCY FLIGHT CENTRAL INC: $53,450 · Community ImprovementBoca Raton Regional Hospital Foundation Inc: $3,000 · Community ImprovementJUNIOR ACHIEVEMENT OF CENTRAL UPSTATE NEW YORK INC: $10,000 · InternationalRochester Emergency Veterinary Services Inc: $7,000 · AnimalsPRIDE OF ONTARIO COUNTY BLUE STAR MOTHERS INC: $1,000 · Public Benefit
Other$812,300Health$143,250Education$142,000Human Services$125,000Community Improvement$56,450International$10,000Animals$7,000Public Benefit$1,000

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 budgetUNIVERSITY OF ROCHESTER: $92,000 over 2y, 0.0% of budgetTHE BRETT BOYER FOUNDATION INC: $90,250 over 1y, 2.7% of budgetShepherd Home Inc: $55,000 over 1y, 12% of budgetMERCY FLIGHT CENTRAL INC: $53,450 over 2y, 0.3% of budgetSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION: $50,000 over 3y, 0.0% of budgetNANCY & FRIENDS FIGHTING CANCER INC: $40,000 over 2y, 43% of budgetHOUSE OF MERCY INC: $30,000 over 3y, 0.5% of budgetYMCA OF GREATER ROCHESTER (4368): $20,000 over 2y, 0.0% of budgetDAYSTAR FOR MEDICALLY FRAGILE CHILDREN D/B/A DAYSTAR KIDS: $15,000 over 2y, 0.1% of budgetRYAN CALLAHAN FOUNDATION INC: $12,000 over 1y, 2.2% of budgetJUNIOR ACHIEVEMENT OF CENTRAL UPSTATE NEW YORK INC: $10,000 over 1y, 0.7% of budgetRochester Emergency Veterinary Services Inc: $7,000 over 1y, 0.1% of budgetBEYOND THE SANCTUARY: $5,000 over 1y, 0.7% of budgetBoca Raton Regional Hospital Foundation Inc: $3,000 over 1y, 0.0% of budgetCURE CHILDHOOD CANCER ASSOCIATION: $1,000 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.

Rochester Area Commun…United Way of Greater…Rochester Area Commun…JM McDonald Foundatio…Summers Foundation IncPaychex Charitable Fo…Greater Rochester Hea…Esl Charitable Founda…Fred and Floy Willmot…The Polisseni Foundat…Mvp Health Plan IncDaisy Marquis Jones F…
Rochester Area Community FoundationNY24.9× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Rochester Area Community Foundation · United Way of Greater Rochester and the Finger Lakes Inc · Rochester Area Community Foundation Depository Inc · JM McDonald Foundation Inc · Summers Foundation Inc · Paychex Charitable Foundation Inc · Greater Rochester Health Foundation · Esl Charitable Foundation · Fred and Floy Willmott Foundation 14-217520 · The Polisseni Foundation Inc · Mvp Health Plan Inc · Daisy Marquis Jones 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 L Dimarco Sr Family Foundation funds: left to right is the share of its income from government, bottom to top the share from John L Dimarco Sr Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%6%25%56%100%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    5report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–90%
    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 L Dimarco Sr Family Foundation?

    Find your warmest path to John L Dimarco Sr 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 28 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on John L Dimarco Sr 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