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Plinth

· Private foundation

The Mosakowski Family Charitable 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.

$2.2M
Granted FY2024still arriving
7
Grants FY2024still arriving
2
States reached
$1.5M
Largest
01What you fund
0184% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20202024.

Education$6.4MReligion$1.5MPhilanthropy$1.0MHealth$335kEnvironment$325kHuman Services$250kRecreation & Sports$223kOther$0
02FY2024 · 7 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2024

  • $10k–50k1 grant · $25k
  • $50k–250k5 grants · $723k
  • $250k+1 grant · $1.5M
$150,000
Median grant
2
States reached
$109M
Total assets
Largest grants
RecipientAmount
COLLEGE OF THE HOLY CROSS$1,500,000
MASSACHUSETTS ASSOCIATION$222,759
ST BENEDICTS PREPARATORY SCHOOL INC$200,000
CATHOLIC SCHOOLS FOUNDATION INC$150,000
NATIVITY SCHOOL OF WORCESTER$100,000
CATHOLIC CHARITIES NORTH$50,000
ST MARY'S HIGH SCHOOL$25,000
02The need
03

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.

show:

Dollar for dollar, your grants (FY20–24) land where the poverty rate runs at 10%, against an area that typically sits at 12%. 18% of your dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.

area typical 12%ROMAN CATHOLIC ARCHDIOCESE OF BOSTON: $500k → 7%CARES: $3.0M → 8%ST MARY'S HIGH SCHOOL: $729k → 10%NATIVITY SCHOOL OF WORCESTER: $200k → 11%HEBREW SENIORLIFE: $500k → 16%NATIONAL PARK FOUNDATION: $200k → 17%ST BENEDICTS PREPARATORY SCHOOL INC: $200k → 16%ROMAN CATHOLIC ARCHDIOCESE OF BOSTON: $500k → 7%CARES: $2.0M → 8%ST MARY'S HIGH SCHOOL: $593k → 10%CATHOLIC SCHOOLS FOUNDATION INC: $150k → 11%HEBREW SENIORLIFE: $500k → 16%NATIONAL PARK FOUNDATION: $100k → 17%ST BENEDICTS PREPARATORY SCHOOL INC: $200k → 16%ROMAN CATHOLIC ARCHDIOCESE OF BOSTON: $500k → 7%CARES: $275k → 8%LYNN YMCA: $500k → 10%CATHOLIC SCHOOLS FOUNDATION INC: $150k → 11%MASSACHUSETTS ASSN FOR MENTAL HEA: $335k → 16%NATIONAL PARK FOUNDATION: $25k → 17%ST BENEDICTS PREPARATORY SCHOOL INC: $200k → 16%CARES: $250k → 8%LYNN YMCA: $100k → 10%CATHOLIC SCHOOLS FOUNDATION INC: $150k → 11%CATHOLIC SCHOOLS FOUNDATION INC: $300k → 16%CATHOLIC CHARITIES NORTH: $50k → 10%NATIVITY SCHOOL OF WORCESTER: $100k → 11%MASSACHUSETTS ASSOCIATION: $223k → 16%CATHOLIC CHARITIES NORTH: $50k → 10%NATIVITY SCHOOL OF WORCESTER: $100k → 11%CATHOLIC SCHOOLS FOUNDATION INC: $200k → 16%CATHOLIC CHARITIES NORTH: $50k → 10%NATIVITY SCHOOL OF WORCESTER: $100k → 11%CATHOLIC CHARITIES NORTH: $50k → 10%COLLEGE OF THE HOLY CROSS: $1.5M → 11%CATHOLIC CHARITIES NORTH: $50k → 10%COLLEGE OF THE HOLY CROSS: $1.5M → 11%ST MARY'S HIGH SCHOOL: $25k → 10%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

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.

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.

03Your edge
repeat funding

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.

97%of every dollar goes to organizations you’ve funded before.
$16M · 11 repeat orgs$558k to everyone else

11 repeat relationships — 6 still active in FY2024, 5 since wound down; 1 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

11
1

Total granted

$16M
$335k

Still filing today

36%
0%

New vs renewed · share of each year

In FY2024, 90% of grant dollars renewed an existing relationship; $223k went to new ones.

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

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

’20’21’22’23’24
EducationPhilanthropyOther

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

  • TO
    TRUSTEES OF THE COLLEGE OF THE HOLY CROSS
    2× · 2023–2024 · $3.0M · revenue +19%
  • CS
    CATHOLIC SCHOOLS FOUNDATION INC
    5× · 2020–2024 · $950k · revenue +5%
  • NS
    NATIVITY SCHOOL OF WORCESTER INC
    4× · 2021–2024 · $500k · revenue +134%

Funded once

  • MA
    MASSACHUSETTS ASSN FOR MENTAL HEA
    one grant, 2022 · $335k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field
04the grantee network

4 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 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 4 of the 13 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.

0
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
4/4
Grantees still filing
3/4
Grew since you first funded

Where your money sits — by cause, then by grantee

CARES — $5,524,266 · OtherCARESROMAN CATHOLIC ARCHDIOCESE OF BOSTON — $1,500,000 · OtherROMAN CATHOLIC ARCHDIOCESE OF BOSTONST MARY'S HIGH SCHOOL — $1,346,050 · OtherST MARY'S HIGH SCHOOLST BENEDICTS PREPARATORY SCHOOL INC — $600,000 · OtherST BENEDICTS PREPARATORY SCHOOL INCIndividual grant recipient — $600,000 · OtherIndividual grant recipientNATIVITY SCHOOL OF WORCESTER INC — $500,000 · Other+4 more — $1,132,759 · Other+4 moreTRUSTEES OF THE COLLEGE OF THE HOLY CROSS — $3,000,000 · EducationTRUSTEES OF THE COLLEGE OF …CATHOLIC SCHOOLS FOUNDATION INC — $950,000 · EducationCATHOLIC SCHOOLS FOUNDATION…Hebrew Senior Life Inc — $1,000,000 · Philanthropy
Other$11,203,075Education$3,950,000Philanthropy$1,000,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$100Mgrantee revenue →↑ your share of their budgetTRUSTEES OF THE COLLEGE OF THE HOLY CROSS — $3,000,000 over 2y, 0.5% of budgetHebrew Senior Life Inc — $1,000,000 over 2y, 1.7% of budgetCATHOLIC SCHOOLS FOUNDATION INC — $950,000 over 5y, 1.2% of budgetNATIVITY SCHOOL OF WORCESTER INC — $500,000 over 4y, 7.8% of budget
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 TRUSTEES OF THE COLLEGE OF THE HOLY CROSS
  • Who funds Hebrew Senior Life Inc
  • Who funds CATHOLIC SCHOOLS FOUNDATION INC
  • Who funds NATIVITY SCHOOL OF WORCESTER INC

Government reliance of your grantees

Every dot is one organization The Mosakowski Family Charitable 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.

2024
202122232425
no gov · 20%1%3%6%10%your share of their income ↑0%1%3%4%5%share of the org’s income from governmentmedian 0%
  • Hebrew Senior Life Inc0% of income from government
no gov moneyreceives it· size = income
2get no government money at all
1report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–5%
typical government reliance, FY2025

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.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 13 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

Generated from your IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

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