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· Private foundation

Marrus Family Foundation Inc

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
64
Grants FY2024still arriving
12
States reached
$1.0M
Largest

Read this first · the figures below need context

67% of Marrus Family Foundation Inc’s FY2024 grant dollars went to American Endowment Foundation, not to grantees.

Its money now reaches organizations through that sponsor, which does not report who recommended each grant. FY2024 names 30 organizations directly, so a portfolio cannot be read from it.

Organizations named directly on the return

36
’22
37
’23
30
’24

Amber years are those where most dollars went to a sponsor.

01What it funds
0191% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2022 to 2024.

Philanthropy$2.1MEducation$644kHealth$325kArts & Culture$209kReligion$179kRecreation & Sports$134kYouth Development$117kCivil Rights$25kOther$0
02FY2024 · 64 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k48 grants · $120k
  • $10k–50k12 grants · $185k
  • $50k–250k3 grants · $239k
  • $250k+1 grant · $1.0M
$2,500
Median grant
12
States reached
$23M
Total assets
Largest grants
RecipientAmount
AMERICAN ENDOWMENT FOUNDATION$1,000,000
BRIGHAMS AND WOMENS HOSPITAL$100,000
CONGREGATION EMANUEL$88,550
JUMPSTART$50,000
RISING TREETOPS AT OAKHURST$30,000
OPENING ACT$25,000
DARTMOUTH COLLEGE$20,000
THE BUCKLEY SCHOOL$16,000
COUNT BASIE THEATER FOUNDATION$15,000
WELLESLEY COLLEGE$15,000
CAMP DUDLEY YMCA$12,500
THE SUMMER CAMP$11,000
WAKE FOREST UNIVERSITY$10,500
ST MARK'S SCHOOL$10,000
GRAND STREET SETTLEMENT INC$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 (FY22–24, $64k) land where the poverty rate runs at 17%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%LEARNING ALLY: $500 → 11%LEARNING ALLY: $500 → 11%LEARNING ALLY: $500 → 11%HOT BREAD KITCHEN: $3k → 17%HOT BREAD KITCHEN: $3k → 17%THE ARTHUR PROJECT: $18k → 17%THE ARTHUR PROJECT: $15k → 17%THE ARTHUR PROJECT: $5k → 17%BOTTOMLESS CLOSET: $3k → 17%BOTTOMLESS CLOSET: $3k → 17%BOTTOMLESS CLOSET: $3k → 17%GRAND STREET SETTLEMENT INC: $10k → 17%GRAND STREET SETTLEMENT: $3k → 17%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
ID
IL
WI
NY
MA
OH
NJ
CT
RI
MO
MD
NC
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.

92%of every dollar goes to organizations it has funded before.
$1.5M · 61 repeat orgs$132k to everyone else

61 repeat relationships: 52 still active in FY2024, 9 since wound down; 8 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

61
25

Total granted

$1.5M
$117k

Median revenue growth · since first grant

+16%
+29%

Still filing today

52%
40%

New vs renewed · share of each year

In FY2024, 97% of grant dollars renewed an existing relationship; $16k went to new ones.

50%100%’22’23’24
RenewedFirst-time

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

’22’23’24
EducationArts & CultureHuman ServicesHealthEnvironmentRecreation & SportsOther
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

  • RT
    RISING TREETOPS AT OAKHURST
    3× · 2022–2024 · $91k · revenue +20%
  • ST MARK'S SCHOOL OF SOUTHBOROUGH INC
    3× · 2022–2024 · $60k · revenue +16%
  • WC
    Wellesley College
    3× · 2022–2024 · $46k · revenue +3%

Funded once

  • EA
    EYE AND EAR HOSPITAL
    one grant, 2023 · $50k
  • VH
    VNA HEALTH GROUP
    one grant, 2023 · $25k
  • EC
    EPISCOPAL CHARITIES
    one grant, 2022 · $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
Manhattanville University

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

Education
2
Boston Architectural College

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

—
3
Dickinson College

Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship

Education
4
Sarah Lawrence College

At sarah lawrence college, our mission is to graduate citizens of the world who are diverse in every definition of the word, who take intellectual and creative risks, and who are able to focus exceptional intellectual discipline (continued…

Education
5
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
6
Albright College

As a diverse community of learners, we cultivate integrity, curiosity, connection and resilience.

Education
7
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
8
Fordham University

Fordham university, the jesuit university of new york, is committed to the discovery of wisdom and the transmission of learning, through research and through education of the highest quality. for more information, see schedule o.

Education
9
Mitchell College

Mitchell college educates students through a highly individualized educational approach that brings forward each student's potential, reveals their strengths, and fosters personal growth.

Education
10
Manhattan School of Music

Manhattan school of music is deeply committed to excellence in education, performance, and creative activity; to the humanity of the school's environment; and to the cultural enrichment of the larger community. a premiere international…

Arts & Culture
11
Barnard College

Barnard college aims to provide the highest quality liberal arts education to promising and high-achieving young women, offering the unparalleled advantages of an outstanding residential college in partnership with a major research…

Education
12
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
How this is measured
The grantee most central to the portfolio’s shape is The Young People's Chorus of New York City 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

50 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. 50 of the 98 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)
3
Early backer (in before they grew)
50/50
Grantees still filing
33/50
Grew since first funded

Where the money sits, by cause and then by grantee

AMERICAN ENDOWMENT FOUNDATION: $2,100,000 · PhilanthropyAMERICAN ENDOWMENT FOUNDATIONBRIGHAMS AND WOMENS HOSPITAL: $200,000 · OtherBRIGHAMS AND WOMENS HOSPITALCONGREGATION EMANUEL: $176,635 · OtherCONGREGATION EMANUELRISING TREETOPS AT OAKHURST: $90,650 · OtherRISING TREETOPS AT OAKHURSTMUSEUM OF THE CITY OF NY: $60,000 · OtherMUSEUM OF THE CITY OF NYEYE AND EAR HOSPITAL: $50,000 · OtherCOUNT BASIE THEATER FOUNDATION: $46,230 · OtherTHE SUMMER CAMP INC: $35,650 · Other+58 more: $344,475 · Other+58 moreJUMPSTART FOR YOUNG CHILDREN INC: $151,000 · EducationJUMPSTART FOR YO…Trustees of Dartmouth College: $75,000 · EducationTrustees of Dart…ST MARK'S SCHOOL OF SOUTHBOROUGH INC: $60,000 · EducationST MARK'S SCHOOL…TRUSTEES OF PHILLIPS ACADEMY: $59,500 · EducationTRUSTEES OF PHIL…POMFRET SCHOOL INCORPORATED: $50,000 · EducationPOMFRET SCHOOL I…Wellesley College: $46,000 · EducationWellesley Colleg…Williams College: $28,500 · EducationWAKE FOREST UNIVERSITY: $25,500 · Education+6 more: $53,242 · Education+6 moreOpening Act Inc: $70,000 · Arts & CultureSALVADORI CENTER LTD: $7,500 · Arts & CultureTHE YOUNG PEOPLE'S CHORUS OF NEW YORK CITY INC: $5,000 · Arts & Culture+6 more: $15,500 · Arts & CultureTHE ARTHUR PROJECT: $37,500 · Human ServicesGRAND STREET SETTLEMENT INC: $12,500 · Human ServicesBOTTOMLESS CLOSET: $7,500 · Human ServicesHOT BREAD KITCHEN LTD: $5,000 · Human Services+1 more: $1,500 · Human ServicesMONMOUTH MEDICAL CENTER FOUNDATION INC: $25,000 · HealthBREAKTHROUGH T1D: $1,000 · Health+1 more: $100 · HealthFRIENDS OF HUDSON RIVER PARK INC: $15,000 · Recreation & Sports
Philanthropy$2,100,000Other$1,003,640Education$548,742Arts & Culture$98,000Human Services$64,000Health$26,100Recreation & Sports$15,000

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

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetAMERICAN ENDOWMENT FOUNDATION: $2,100,000 over 3y, 0.1% of budgetJUMPSTART FOR YOUNG CHILDREN INC: $151,000 over 3y, 0.3% of budgetRISING TREETOPS AT OAKHURST: $90,650 over 3y, 0.9% of budgetTrustees of Dartmouth College: $75,000 over 3y, 0.0% of budgetOpening Act Inc: $70,000 over 3y, 2.2% of budgetST MARK'S SCHOOL OF SOUTHBOROUGH INC: $60,000 over 3y, 0.1% of budgetTRUSTEES OF PHILLIPS ACADEMY: $59,500 over 2y, 0.0% of budgetPOMFRET SCHOOL INCORPORATED: $50,000 over 2y, 0.1% of budgetWellesley College: $46,000 over 3y, 0.0% of budgetTHE ARTHUR PROJECT: $37,500 over 3y, 2.2% of budgetTHE SUMMER CAMP INC: $35,650 over 3y, 1.9% of budgetCAMP DUDLEY INC: $32,500 over 3y, 0.2% of budgetWilliams College: $28,500 over 3y, 0.0% of budgetWAKE FOREST UNIVERSITY: $25,500 over 3y, 0.0% of budgetMONMOUTH MEDICAL CENTER FOUNDATION INC: $25,000 over 2y, 0.2% of budgetTHE SPENCE SCHOOL: $16,500 over 3y, 0.0% of budgetFRIENDS OF HUDSON RIVER PARK INC: $15,000 over 3y, 0.1% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $15,000 over 3y, 0.0% of budgetGRAND STREET SETTLEMENT INC: $12,500 over 2y, 0.0% of budgetBROWN UNIVERSITY: $11,500 over 3y, 0.0% of budgetLEE PESKY LEARNING CENTER INC: $10,000 over 2y, 0.3% of budgetCITIZENS COMMITTEE FOR CHILDREN OF NEW YORK INC: $10,000 over 3y, 0.1% of budgetREADING PARTNERS: $9,242 over 2y, 0.0% of budgetBOTTOMLESS CLOSET: $7,500 over 3y, 0.2% of budgetSALVADORI CENTER LTD: $7,500 over 3y, 0.1% of budgetHOT BREAD KITCHEN LTD: $5,000 over 2y, 0.1% of budgetMAYHEW: $5,000 over 2y, 0.1% of budgetTHE YOUNG PEOPLE'S CHORUS OF NEW YORK CITY INC: $5,000 over 2y, 0.1% of budgetMONMOUTH CONSERVATION FOUNDATION: $5,000 over 1y, 0.1% of budgetPhysicians For Reproductive Health: $4,500 over 3y, 0.0% of budgetLINCOLN CENTER FOR THE PERFORMING ARTS INC: $3,000 over 1y, 0.0% of budgetWILD TOMORROW FUND: $3,000 over 3y, 0.1% of budgetARTSCONNECTION INC: $3,000 over 3y, 0.0% of budgetMETROPOLITAN MUSEUM OF ART: $3,000 over 2y, 0.0% of budgetST LUKES CHAMBER ENSEMBLE INC: $2,500 over 1y, 0.0% of budgetAMERICANS FOR OXFORD INC: $2,000 over 2y, 0.0% of budgetTRANSPORT GROUP INC DBA TRANSPORT GROUP THEATRE COMPANY: $2,000 over 1y, 0.3% of budgetTHE HARMONY PROGRAM INC: $2,000 over 2y, 0.1% of budgetPAN-MASSACHUSETTS CHALLENGE INC: $1,600 over 1y, 0.0% of budgetLearning Ally Inc: $1,500 over 3y, 0.0% of budgetFRIENDS of POOL INC: $1,500 over 1y, 0.0% of budgetBOYS AND GIRLS CLUB OF GREATER MILWAUKEE INC: $1,000 over 1y, 0.0% of budgetLUNCH BREAK INC: $1,000 over 2y, 0.0% of budgetBREAKTHROUGH T1D: $1,000 over 1y, 0.0% of budgetLIFT INC: $1,000 over 1y, 0.0% of budgetPUBLIC ART FUND INC: $1,000 over 1y, 0.0% of budgetMobilization for Justice Inc: $500 over 1y, 0.0% of budgetAchilles International Inc: $500 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 AMERICAN ENDOWMENT FOUNDATION ↗
  • Who funds JUMPSTART FOR YOUNG CHILDREN INC ↗
  • Who funds RISING TREETOPS AT OAKHURST ↗
  • Who funds Trustees of Dartmouth College ↗
  • Who funds Opening Act Inc ↗
  • Who funds ST MARK'S SCHOOL OF SOUTHBOROUGH INC ↗
  • Who funds TRUSTEES OF PHILLIPS ACADEMY ↗
  • Who funds POMFRET SCHOOL INCORPORATED ↗
  • Who funds Wellesley College ↗
  • Who funds THE ARTHUR PROJECT ↗
  • Who funds THE SUMMER CAMP INC ↗
  • Who funds CAMP DUDLEY INC ↗
  • Who funds Williams College ↗
  • Who funds WAKE FOREST UNIVERSITY ↗
  • Who funds MONMOUTH MEDICAL CENTER FOUNDATION INC ↗
  • Who funds THE SPENCE SCHOOL ↗
  • Who funds FRIENDS OF HUDSON RIVER PARK INC ↗
  • Who funds THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ↗
  • Who funds GRAND STREET SETTLEMENT INC ↗
  • Who funds BROWN UNIVERSITY ↗
  • Who funds LEE PESKY LEARNING CENTER INC ↗
  • Who funds CITIZENS COMMITTEE FOR CHILDREN OF NEW YORK INC ↗
  • Who funds READING PARTNERS ↗
  • Who funds BOTTOMLESS CLOSET ↗
  • Who funds SALVADORI CENTER LTD ↗

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.

The New York Community TrustNY16.6× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The New York Community Trust · Pinkerton Foundation · Jewish Communal Fund · National Philanthropic Trust · The Mercy Family Foundation Inc · The Keith Haring Foundation Inc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Morgan Stanley Global Impact Funding Trust Inc · Mother Cabrini Health Foundation Inc · Verizon Foundation · American Endowment Foundation · The Goldman Sachs Charitable Gift Fund

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 Marrus Family Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Marrus Family Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 40%0%1%3%5%funder's share of their income ↑0%15%30%45%60%share of the org’s income from government →median 1%
  • Lunch Break Inc: 4% of income from government
  • Learning Ally Inc: 4% of income from government
  • Wellesley College: 1% of income from government
  • Pan-Massachusetts Challenge Inc: 0% of income from government
  • Blair Academy: 0% of income from government
  • Williams College: 0% of income from government
no gov moneyreceives it· size = income
4get no government money at all
15report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–60%
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 Marrus Family Foundation Inc?

Find your warmest path to Marrus Family Foundation Inc 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 98 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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