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· Private foundation

The Mosse 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.

$1.5M
Granted FY2024still arriving
38
Grants FY2024still arriving
10
States reached
$340k
Largest
01What it funds
0193% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2024.

Education$3.2MPhilanthropy$2.5MArts & Culture$1.3MScience & Tech$1.0MPublic Benefit$405kHousing & Shelter$40kReligion$35kEnvironment$28kOther$0
02FY2024 · 38 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k25 grants · $65k
  • $10k–50k5 grants · $115k
  • $50k–250k7 grants · $952k
  • $250k+1 grant · $340k
$5,000
Median grant
10
States reached
$16M
Total assets
Largest grants
RecipientAmount
PAROS FOUNDATION$340,163
BERKELEY REPERTORY THEATRE$236,000
MATHEMATICAL SCIENCES RESEARCH INSTITUTE$200,000
CORNELL UNIVERSITY$200,000
UC BERKELEY FOUNDATION$110,000
PROTECT DEMOCRACY PROJECT$100,000
HUMBOLDT UNIVERSITAT ZU BERLIN$56,287
NORTHSIDE CENTER FOR CHILD DEVELOPMENT$50,000
UNIVERSITY OF WI FOUNDATION$35,000
LESLEY UNIVERSITY$30,000
Individual grant recipient$25,000
WGBH$15,000
KQED$10,000
COLUMBIA UNIVERSITY$7,500
HABITAT FOR HUMANITY OF GREATER BOSTON$6,023
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:

Dollar for dollar, its grants (FY19–24) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 36% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%TUFTS UNIVERSITY: $50k → 8%CORNELL UNIVERSITY: $250k → 16%UNIVERSITY OF WI FOUNDATION: $35k → 10%KQED: $25k → 10%CORNELL UNIVERSITY: $250k → 16%CORNELL UNIVERSITY: $200k → 16%PROTECT DEMOCRACY PROJECT: $105k → 14%PAROS FOUNDATION: $366k → 10%CORNELL UNIVERSITY: $200k → 16%PROTECT DEMOCRACY PROJECT: $100k → 14%PAROS FOUNDATION: $350k → 10%CORNELL UNIVERSITY: $50k → 16%NORTHSIDE CENTER FOR CHILD DEVELOPMENT: $283k → 17%PROTECT DEMOCRACY PROJECT: $100k → 14%PAROS FOUNDATION: $340k → 10%CORNELL UNIVERSITY: $50k → 16%NORTHSIDE CENTER FOR CHILD DEVELOPMENT: $276k → 17%PROTECT DEMOCRACY PROJECT: $50k → 14%PAROS FOUNDATION: $338k → 10%NORTHSIDE CENTER FOR CHILD DEVELOPMENT: $275k → 17%PROTECT DEMOCRACY PROJECT: $50k → 14%LESLEY UNIVERSITY: $220k → 8%PAROS FOUNDATION: $329k → 10%NORTHSIDE CENTER FOR CHILD DEVELOPMENT: $250k → 17%LESLEY UNIVERSITY: $210k → 8%BERKELEY REPERTORY THEATRE: $236k → 10%NORTHSIDE CENTER FOR CHILD DEVELOPMENT: $51k → 17%LESLEY UNIVERSITY: $37k → 8%BERKELEY REPERTORY THEATRE: $225k → 10%NORTHSIDE CENTER FOR CHILD DEVELOPMENT: $50k → 17%LESLEY UNIVERSITY: $30k → 8%PAROS FOUNDATION: $205k → 10%LESLEY UNIVERSITY: $30k → 8%COMBINED JEWISH PHILANTHROPIES OF GREATER BOSTON: $30k → 16%BERKELEY REPERTORY THEATRE: $200k → 10%BERKELEY REPERTORY THEATRE: $129k → 10%BERKELEY REPERTORY THEATRE: $125k → 10%BERKELEY REPERTORY THEATRE: $100k → 10%MATHEMATICAL SCIENCES RESEARCH INSTITUTE: $300k → 10%MATHEMATICAL SCIENCES RESEARCH INSTITUTE: $200k → 10%MATHEMATICAL SCIENCES RESEARCH INSTITUTE: $200k → 10%MATHEMATICAL SCIENCES RESEARCH INSTITUTE: $100k → 10%MATHEMATICAL SCIENCES RESEARCH INSTITUTE: $100k → 10%MATHEMATICAL SCIENCES RESEARCH INSTITUTE: $100k → 10%UCB CAL PERFORMANCES: $50k → 10%UC BERKELEY FOUNDATION: $200k → 10%UC BERKELEY FOUNDATION: $110k → 10%UC BERKELEY FOUNDATION: $110k → 10%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
NH
MN
WI
NY
MA
PA
CT
CA
AZ
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.

98%of every dollar goes to organizations it has funded before.
$8.4M · 40 repeat orgs$145k to everyone else

Grantees it renews have grown median revenue +50% since the first grant, against +24% for those funded once.

40 repeat relationships: 29 still active in FY2024, 11 since wound down; 7 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

40
18

Total granted

$8.4M
$99k

Median revenue growth · since first grant

+50%
+24%

Still filing today

68%
44%

New vs renewed · share of each year

In FY2024, 97% of grant dollars renewed an existing relationship; $46k went to new ones.

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

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

’19’20’21’22’23’24
Arts & CultureEducationInternationalScience & TechHealthCommunity ImprovementOther
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

  • TP
    THE PAROS FOUNDATION
    6× · 2019–2024 · $1.9M · revenue +75%
  • NC
    NORTHSIDE CENTER FOR CHILD DEVELOPMENT INC
    6× · 2019–2024 · $1.2M · revenue +19%
  • BR
    BERKELEY REPERTORY THEATRE
    6× · 2019–2024 · $1.0M · revenue +2%

Funded once

  • HS
    HAAS SCHOOL OF BUSINESS UNIVERSITY OF CALIFORNIA BERKELEY
    one grant, 2022 · $25k
  • HC
    HAAS CLEANTECH TO MARKET PROGRAMHAAS CLEANTECH TO MARKET PROGRAM
    one grant, 2023 · $25k
  • LO
    LIBRARY OF CONGRESS JAMES MADISON COUNCIL
    one grant, 2020 · $25k
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
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
2
Boston Architectural College

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

—
3
Trustees of Boston University

Organization's mission: boston university is an international, comprehensive, private research university, committed to educating students to be reflective, resourceful individuals ready to live, adapt, and lead in an interconnected world.…

—
4
President and Fellows of Harvard College

Undergraduate, graduate, and professional education and research across a broad array of academic domains.

Education
5
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
6
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
7
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
8
Proprietors of the Boston Athenaeum

The mission of the boston athenaeum is to engage all who seek knowledge by making accessible our library's collections and spaces, thereby inspiring reflection, discourse, creative expression, and joy.

Education
9
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
10
Trustees of Boston College

Mission strengthened by more than a century and a half of dedication to academic excellence, boston college commits itself to the highest standards of teaching and research in undergraduate, graduate and professional programs and to the…

Education
11
Columbia College Chicago

The organization's mission is to educate students for creative occupations in diverse fields of arts and media.

Education
12
Trustees for Harvard University

To facilitate harvard university's scientific, literary, and educational activities in washington, dc.

Education
How this is measured
The grantee most central to the portfolio’s shape is Commonwealth Kitchen Inc; the most unlike its peers is The Paros Foundation. 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

41 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. 41 of the 68 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)
12
Early backer (in before they grew)
41/41
Grantees still filing
32/41
Grew since first funded

Where the money sits, by cause and then by grantee

NORTHSIDE CENTER FOR CHILD DEVELOPMENT INC: $1,185,000 · EducationNORTHSIDE CENTER FOR CHILD DEV…Cornell University: $1,000,000 · EducationCornell UniversityTrustees of Tufts College: $90,000 · Education+5 more: $53,475 · EducationTHE PAROS FOUNDATION: $1,927,774 · PhilanthropyTHE PAROS FOUNDATIONCombined Jewish Philanthropies of Greater Boston Inc: $130,000 · PhilanthropyCombined Jewish Philanthro…LESLEY UNIVERSITY: $527,030 · OtherLESLEY UNIVERSITYUC BERKELEY FOUNDATION: $445,000 · OtherUC BERKELEY FOUNDATIONHUMBOLDT UNIVERSITAT ZU BERLIN: $295,319 · OtherHUMBOLDT UNIVERSITAT Z…Individual grant recipient: $150,000 · OtherIndividual grant recip…+38 more: $356,395 · Other+38 moreBERKELEY REPERTORY THEATRE: $1,015,100 · Arts & CultureBERKELEY REPER…KQED INC: $67,500 · Arts & CultureKQED INC+9 more: $51,564 · Arts & CultureSIMONS LAUFER MATHEMATICAL SCIENCES INSTITUTE: $1,000,000 · Science & TechSIMONS LAUFE…+1 more: $2,000 · Science & TechPROTECT DEMOCRACY PROJECT: $405,000 · Civil RightsHABITAT FOR HUMANITY GREATER BOSTON INC: $31,772 · Housing & ShelterCARITAS COMMUNITIES INC: $8,000 · Housing & Shelter
Education$2,328,475Philanthropy$2,057,774Other$1,773,744Arts & Culture$1,134,164Science & Tech$1,002,000Civil Rights$405,000Housing & Shelter$39,772

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 budgetTHE PAROS FOUNDATION: $1,927,774 over 6y, 20% of budgetNORTHSIDE CENTER FOR CHILD DEVELOPMENT INC: $1,185,000 over 6y, 1.5% of budgetBERKELEY REPERTORY THEATRE: $1,015,100 over 6y, 1.3% of budgetCornell University: $1,000,000 over 6y, 0.0% of budgetSIMONS LAUFER MATHEMATICAL SCIENCES INSTITUTE: $1,000,000 over 6y, 1.4% of budgetLESLEY UNIVERSITY: $527,030 over 5y, 0.2% of budgetPROTECT DEMOCRACY PROJECT: $405,000 over 5y, 0.3% of budgetCombined Jewish Philanthropies of Greater Boston Inc: $130,000 over 5y, 0.0% of budgetTrustees of Tufts College: $90,000 over 3y, 0.0% of budgetKQED INC: $67,500 over 5y, 0.0% of budgetUNIVERSITY OF WISCONSIN FOUNDATION: $35,000 over 1y, 0.0% of budgetHABITAT FOR HUMANITY GREATER BOSTON INC: $31,772 over 5y, 0.2% of budgetCASTINE HISTORICAL SOCIETY INC: $23,704 over 5y, 2.7% of budgetFOOD FOR FREE COMMITTEE INC: $20,000 over 3y, 0.1% of budgetMOUNT AUBURN HOSPITAL: $16,000 over 2y, 0.0% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $15,000 over 2y, 0.0% of budgetTRINITY BOSTON CONNECTS INC: $10,000 over 2y, 0.2% of budgetTiba Foundation: $10,000 over 2y, 0.5% of budgetPacific Pinball Museum: $8,900 over 3y, 0.5% of budgetCARITAS COMMUNITIES INC: $8,000 over 2y, 0.1% of budgetMARTHA'S VINEYARD FILM SOCIETY INC: $6,000 over 4y, 0.3% of budgetPROJECT SAVE ARMENIAN PHOTOGRAPH ARCHIVES INC: $5,000 over 2y, 1.7% of budgetMARTHA'S VINEYARD PRESERVATION TRUST INC: $5,000 over 2y, 0.1% of budgetMARTHA'S VINEYARD MUSEUM INC: $3,650 over 4y, 0.0% of budgetSHERIFF'S MEADOW FOUNDATION: $3,000 over 3y, 0.0% of budgetPAN-MASSACHUSETTS CHALLENGE INC: $2,640 over 3y, 0.0% of budgetRenaissance Entrepreneurship Center: $2,575 over 1y, 0.1% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $2,375 over 5y, 0.0% of budgetCOMMONWEALTH KITCHEN INC: $2,039 over 1y, 0.0% of budgetFriends of Warm Hearth Inc: $2,000 over 2y, 0.4% of budgetCHABOT SPACE & SCIENCE CENTER FOUNDATION: $2,000 over 1y, 0.1% of budgetTHE AMERICAN RADIO RELAY LEAGUE INC: $2,000 over 1y, 0.0% of budgetMUSEUM OF FINE ARTS: $1,551 over 4y, 0.0% of budgetBest Buddies International Inc: $1,000 over 2y, 0.0% of budgetDRESS FOR SUCCESS WORLDWIDE: $1,000 over 1y, 0.0% of budgetBOATHOUSE FOUNDATION INC: $600 over 2y, 0.5% of budgetCROHN'S & COLITIS FOUNDATION INC: $500 over 1y, 0.0% of budgetARMENIAN FILM SOCIETY: $500 over 1y, 0.2% of budgetPseads: $500 over 1y, 0.1% of budgetWORLD CENTRAL KITCHEN INC: $263 over 1y, 0.0% of budgetZUMIX INC: $259 over 1y, 0.0% 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 THE PAROS FOUNDATION ↗
  • Who funds NORTHSIDE CENTER FOR CHILD DEVELOPMENT INC ↗
  • Who funds BERKELEY REPERTORY THEATRE ↗
  • Who funds Cornell University ↗
  • Who funds SIMONS LAUFER MATHEMATICAL SCIENCES INSTITUTE ↗
  • Who funds LESLEY UNIVERSITY ↗
  • Who funds PROTECT DEMOCRACY PROJECT ↗
  • Who funds Combined Jewish Philanthropies of Greater Boston Inc ↗
  • Who funds Trustees of Tufts College ↗
  • Who funds KQED INC ↗
  • Who funds UNIVERSITY OF WISCONSIN FOUNDATION ↗
  • Who funds HABITAT FOR HUMANITY GREATER BOSTON INC ↗
  • Who funds CASTINE HISTORICAL SOCIETY INC ↗
  • Who funds FOOD FOR FREE COMMITTEE INC ↗
  • Who funds MOUNT AUBURN HOSPITAL ↗
  • Who funds THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ↗
  • Who funds TRINITY BOSTON CONNECTS INC ↗
  • Who funds Tiba Foundation ↗
  • Who funds Pacific Pinball Museum ↗
  • Who funds CARITAS COMMUNITIES INC ↗
  • Who funds MARTHA'S VINEYARD FILM SOCIETY INC ↗
  • Who funds PROJECT SAVE ARMENIAN PHOTOGRAPH ARCHIVES INC ↗
  • Who funds MARTHA'S VINEYARD PRESERVATION TRUST 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.

Boston Foundation IncMA15.5× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Boston Foundation Inc · Rockland Trust Charitable Foundation Inc · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · American Online Giving Foundation Inc · The Bank of America Charitable Foundation Inc · The Blackbaud Giving Fund · Network for Good · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 The Mosse Foundation funds: left to right is the share of its income from government, bottom to top the share from The Mosse Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%1%5%11%20%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →median 4%
  • Trustees of Tufts College: 13% of income from government
  • Commonwealth Kitchen Inc: 9% of income from government
  • Zumix Inc: 5% of income from government
  • Mount Auburn Hospital: 5% of income from government
  • Martha's Vineyard Preservation Trust Inc: 4% of income from government
  • Best Buddies International Inc: 4% of income from government
  • Food for Free Committee Inc: 3% of income from government
  • Sheriff's Meadow Foundation: 2% of income from government
  • Martha's Vineyard Film Society Inc: 2% of income from government
  • Lesley University: 1% of income from government
  • Museum of Fine Arts: 0% of income from government
  • Pan-Massachusetts Challenge Inc: 0% of income from government
no gov moneyreceives it· size = income
6get no government money at all
6report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–75%
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.

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 68 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

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