Skip to content
Iris and Shalom Maidenbaum Foundation Inc at a glance

· Private foundation

Iris and Shalom Maidenbaum 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.

$472k
Granted FY2024still arriving
67
Grants FY2024still arriving
9
States reached
$62k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0181% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Religion$948kInternational$484kArts & Culture$179kHuman Services$179kPhilanthropy$143kHealth$111kEducation$60kCivil Rights$20kOther$0
02FY2024 · 67 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k52 grants · $118k
  • $10k–50k13 grants · $235k
  • $50k–250k2 grants · $118k
$2,250
Median grant
9
States reached
$494k
Total assets
Largest grants
RecipientAmount
CONGREGATION BETH SHALOM$62,495
PEF ISRAEL ENDOWMENT$56,000
OPENDOR MEDIA$30,000
MICROSITE ED EXPANSION (SOUTH NASSAU COMMUNITY HOSPITAL)$25,000
NATL CNC OF YOUNG ISRAEL$25,000
Individual grant recipient$25,000
OUR PLACE IN NY INC$22,600
ONE ISRAEL FUND$19,800
KULANU CENTER FOR SPECIAL SERVICES$17,500
Individual grant recipient$13,000
Individual grant recipient$13,000
MEMORIAL SLOAN KETTERING$12,500
LMA'ANCHEM USA$12,000
AMERICAN COMM FOR SHAARE ZEDEK$10,000
AMERICAN FRIENDS OF LIVNOT$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, $69k) land where the poverty rate runs at 18%, against an area that typically sits at 11%. 89% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%BONEI OLAM: $1k → 20%OUR PLACE IN NY INC: $23k → 20%OUR PLACE IN NY INC: $13k → 20%OUR PLACE IN NY INC: $10k → 20%OUR PLACE IN NY INC: $7k → 20%OUR PLACE IN NY INC: $4k → 20%ACHIEZER: $5k → 6%OUR PLACE IN NY INC: $2k → 20%NOURISH FOUNDATION INC: $1k → 6%ACHIEZER: $1k → 6%DAVIS MEMORIAL FUND: $360 → 6%AMERICAN FRIENDS OF LIKUD INC: $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

IL
MI
NY
MA
OR
IN
NJ
CT
CA
CO
NE
MO
VA
MD
SC
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.

78%of every dollar goes to organizations it has funded before.
$1.9M · 99 repeat orgs$544k to everyone else

Grantees it renews have grown median revenue +34% since the first grant, against +26% for those funded once.

99 repeat relationships: 52 still active in FY2024, 47 since wound down; 14 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

99
103

Total granted

$1.9M
$494k

Median revenue growth · since first grant

+34%
+26%

Still filing today

32%
33%

New vs renewed · share of each year

In FY2024, 88% of grant dollars renewed an existing relationship; $49k 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
InternationalEducationReligionArts & CultureHealthHuman ServicesOther
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

  • OM
    OPENDOR MEDIA INC
    4× · 2020–2024 · $130k · revenue +97%
  • FO
    FRIENDS OF UNITED HATZALAH INC
    2× · 2019–2020 · $92k · revenue +234%
  • OP
    OUR PLACE IN NY INC
    6× · 2019–2024 · $59k · revenue +205%

Funded once

  • FC
    Friedman Center for Peace Through Strength Inc
    one grant, 2021 · $100k · revenue -38%
  • CZ
    CONGREGATION ZICHRON MAYER MOSHE
    one grant, 2021 · $100k
  • FO
    FRIENDS OF IR DAVID INC
    one grant, 2023 · $25k · revenue -35%
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
Sherit Isroel
—
2
Yeshiva Ohr Yisroel
Philanthropy
3
Zichron Avrohom Yosef
Philanthropy
4
University of Judaism Foundation
—
5
Keren Yaakov Ben Menachen Tzvi Foundation
Philanthropy
6
Idf Memorial Foundation
Philanthropy
7
The Nochim & Rivka Zeldes Foundation
—
8
American Friends of Even Yisroel Charitable Foundation
Philanthropy
9
American Friends of Yeshiva Aish Hatorah
—
10
Moskowitz Prize for Zionism Inc
—
11
Yad Laniyim
Philanthropy
12
The Jerusalem Connection
—
How this is measured
The grantee most central to the portfolio’s shape is Emunah of America Inc; the most unlike its peers is Wildlife Conservation Society. 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

79 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. 79 of the 221 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)
14
Early backer (in before they grew)
78/79
Grantees still filing
55/79
Grew since first funded

Where the money sits, by cause and then by grantee

CONGREGATION BETH SHALOM: $163,067 · OtherCONGREGATION BETH SHALOMZOAORG: $100,000 · OtherZOAORGCONGREGATION ZICHRON MAYER MOSHE: $100,000 · OtherCONGREGATION ZICHRON MAYER MOSHEIndividual grant recipient: $95,200 · OtherIndividual grant recipientNATL CNC OF YOUNG ISRAEL: $61,680 · OtherCHABAD LUBAVITCH OF THE BEACHES: $61,500 · OtherORTHODOX UNION: $55,280 · Other+137 more: $998,418 · Other+137 moreONE ISRAEL FUND LTD: $29,500 · InternationalONE ISRAE…FRIENDS OF IR DAVID INC: $25,000 · InternationalFRIENDS O…AMERICAN FRIENDS OF REICHMAN UNIVERSITY INC: $25,000 · InternationalAMERICAN …EMUNAH OF AMERICA INC: $18,421 · InternationalEMUNAH OF…THE JERUSALEM FELLOWSHIPS INC: $18,360 · InternationalTHE JERUS…AMERICAN FRIENDS OF MAGEN DAVID ADOM: $18,000 · InternationalAMERICAN …AMERICAN FRIENDS OF SHEVACH INC: $13,251 · InternationalAMERICAN …FRIENDS OF THE ISRAEL DEFENSE FORCES: $12,500 · InternationalFRIENDS O…COMMITTEE FOR ACCURACY IN MIDDLE EAST REPORTING IN AMERICA INC: $12,200 · InternationalCOMMITTEE…ISRAEL EMERGENCY ALLIANCE: $11,800 · InternationalISRAEL EM…INSTITUTE OF INTERNATIONAL EDUCATION INC: $10,000 · InternationalFRIENDS OF ISRAEL DISABLED VETERANS INC: $10,000 · International+7 more: $4,389 · InternationalFRIENDS OF UNITED HATZALAH INC: $92,300 · Arts & CultureAMERICAN SOCIETY FOR YAD VASHEM INC: $60,000 · Arts & CultureMUSEUM OF JEWISH HERITAGE A LIVING MEMORIAL TO THE HOLOCAUST: $13,644 · Arts & CultureJEWISH EDUCATION IN MEDIA INC DBA JBS JEWISH BROADCASTING SERVICE: $7,700 · Arts & Culture+3 more: $10,318 · Arts & CultureFriedman Center for Peace Through Strength Inc: $100,000 · EducationYESHIVA UNIVERSITY: $18,000 · EducationAMERICANS AGAINST ANTI-SEMITISM INC: $15,000 · EducationKEREN OR INC: $13,238 · EducationALPHA EPSILON PI FOUNDATION: $12,004 · EducationTHE TIKVAH FUND: $10,000 · Education+4 more: $10,320 · EducationOPENDOR MEDIA INC: $130,000 · ReligionLMAANCHEM USA INC: $18,000 · ReligionOhr Torah Stone Institutions of Israel: $16,666 · Religion+7 more: $7,779 · ReligionPEF ISRAEL ENDOWMENT FUNDS INC: $111,000 · PhilanthropyJEWISH COMMUNAL FUND: $50,000 · Philanthropy+2 more: $5,580 · PhilanthropyOUR PLACE IN NY INC: $58,560 · Human ServicesACHIEZER COMMUNITY RESOURCE CENTER INC: $6,000 · Human ServicesAMERICAN FRIENDS OF LIKUD INC: $2,500 · Human Services+3 more: $2,410 · Human Services
Other$1,635,145International$208,421Arts & Culture$183,962Education$178,562Religion$172,445Philanthropy$166,580Human Services$69,470

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%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetOPENDOR MEDIA INC: $130,000 over 4y, 0.8% of budgetPEF ISRAEL ENDOWMENT FUNDS INC: $111,000 over 3y, 0.0% of budgetFriedman Center for Peace Through Strength Inc: $100,000 over 1y, 5.8% of budgetFRIENDS OF UNITED HATZALAH INC: $92,300 over 2y, 0.2% of budgetAMERICAN SOCIETY FOR YAD VASHEM INC: $60,000 over 4y, 0.1% of budgetOUR PLACE IN NY INC: $58,560 over 6y, 0.3% of budgetJEWISH COMMUNAL FUND: $50,000 over 1y, 0.0% of budgetONE ISRAEL FUND LTD: $29,500 over 6y, 0.2% of budgetFRIENDS OF IR DAVID INC: $25,000 over 1y, 0.1% of budgetAMERICAN FRIENDS OF REICHMAN UNIVERSITY INC: $25,000 over 2y, 0.1% of budgetEMUNAH OF AMERICA INC: $18,421 over 6y, 0.2% of budgetTHE JERUSALEM FELLOWSHIPS INC: $18,360 over 1y, 2.3% of budgetYESHIVA UNIVERSITY: $18,000 over 1y, 0.0% of budgetAMERICAN FRIENDS OF MAGEN DAVID ADOM: $18,000 over 1y, 0.0% of budgetLMAANCHEM USA INC: $18,000 over 2y, 0.4% of budgetOhr Torah Stone Institutions of Israel: $16,666 over 2y, 0.1% of budgetNassau County Police Department Foundation Inc: $15,000 over 3y, 0.8% of budgetAMERICANS AGAINST ANTI-SEMITISM INC: $15,000 over 2y, 3.8% of budgetMUSEUM OF JEWISH HERITAGE A LIVING MEMORIAL TO THE HOLOCAUST: $13,644 over 2y, 0.1% of budgetAMERICAN FRIENDS OF SHEVACH INC: $13,251 over 2y, 4.4% of budgetKEREN OR INC: $13,238 over 6y, 0.1% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES: $12,500 over 3y, 0.0% of budgetCOMMITTEE FOR ACCURACY IN MIDDLE EAST REPORTING IN AMERICA INC: $12,200 over 3y, 0.1% of budgetALPHA EPSILON PI FOUNDATION: $12,004 over 3y, 0.2% of budgetISRAEL EMERGENCY ALLIANCE: $11,800 over 3y, 0.0% of budgetINSTITUTE OF INTERNATIONAL EDUCATION INC: $10,000 over 1y, 0.0% of budgetTHE TIKVAH FUND: $10,000 over 2y, 0.0% of budgetFRIENDS OF ISRAEL DISABLED VETERANS INC: $10,000 over 1y, 0.3% of budgetJEWISH EDUCATION IN MEDIA INC DBA JBS JEWISH BROADCASTING SERVICE: $7,700 over 3y, 0.2% of budgetACHIEZER COMMUNITY RESOURCE CENTER INC: $6,000 over 2y, 0.1% of budgetMANHATTAN THEATRE CLUB INC: $5,000 over 5y, 0.0% of budgetCLARION PROJECT INC: $5,000 over 1y, 0.2% of budgetAMERICAN FRIENDS OF BAR-ILAN UNIVERSITY: $5,000 over 1y, 0.0% of budgetMY TZEDAKAH FUND INC: $5,000 over 1y, 1.8% of budgetSTORAHTELLING LAB SHUL INC: $4,639 over 1y, 0.3% of budgetINTERNATIONAL MARCH OF THE LIVING I: $3,600 over 1y, 0.1% of budgetAmerican Friends of Migdal OHR: $3,600 over 1y, 0.1% of budgetAMUDIM COMMUNITY RESOURCES INC: $3,000 over 1y, 0.0% of budgetAMERICAN FRIENDS OF LIKUD INC: $2,500 over 1y, 0.7% of budgetCROHN'S & COLITIS FOUNDATION INC: $2,000 over 2y, 0.0% of budgetWildlife Conservation Society: $1,860 over 2y, 0.0% of budgetInternational Lone Soldiers INC: $1,800 over 1y, 0.2% of budgetCHAI LIFELINE INC: $1,750 over 3y, 0.0% of budgetAMERICAN GEERZ FOR LIFE INC: $1,690 over 5y, 0.1% of budgetWOMEN'S INTERNATIONAL ZIONIST ORGANIZATION: $1,648 over 2y, 0.0% of budgetBonei Olam Inc: $1,050 over 1y, 0.0% of budgetNOURISH FOUNDATION INC: $1,000 over 1y, 0.9% of budgetTHREAD INC: $1,000 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 OPENDOR MEDIA INC ↗
  • Who funds PEF ISRAEL ENDOWMENT FUNDS INC ↗
  • Who funds Friedman Center for Peace Through Strength Inc ↗
  • Who funds FRIENDS OF UNITED HATZALAH INC ↗
  • Who funds AMERICAN SOCIETY FOR YAD VASHEM INC ↗
  • Who funds OUR PLACE IN NY INC ↗
  • Who funds JEWISH COMMUNAL FUND ↗
  • Who funds ONE ISRAEL FUND LTD ↗
  • Who funds FRIENDS OF IR DAVID INC ↗
  • Who funds AMERICAN FRIENDS OF REICHMAN UNIVERSITY INC ↗
  • Who funds EMUNAH OF AMERICA INC ↗
  • Who funds THE JERUSALEM FELLOWSHIPS INC ↗
  • Who funds YESHIVA UNIVERSITY ↗
  • Who funds AMERICAN FRIENDS OF MAGEN DAVID ADOM ↗
  • Who funds LMAANCHEM USA 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.

Jewish Communal FundThe Ojc FundJewish Federation of …Cross River Community…United Jewish Appeal-…FjcSwieca Children Found…Alyad Foundation IncJack Adjmi Family Fou…Jewish Community Foun…Dallas Jewish Communi…Ruth R Greenberg Fami…
Jewish Communal FundNY45× affinity40 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · The Ojc Fund · Jewish Federation of Metropolitan Chicago · Cross River Community Foundation · United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc · Fjc · Swieca Children Foundation · Alyad Foundation Inc · Jack Adjmi Family Foundation Inc · Jewish Community Foundation of Greater Metrowest NJ · Dallas Jewish Community Foundation · Ruth R Greenberg Family 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 Iris and Shalom Maidenbaum Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Iris and Shalom Maidenbaum Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%1%3%6%10%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →median 4%
  • Thread Inc: 12% of income from government
  • Sharsheret Inc: 4% of income from government
  • The Frisch School: 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 · 0–90%
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 Iris and Shalom Maidenbaum Foundation Inc?

Find your warmest path to Iris and Shalom Maidenbaum 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 221 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 Iris and Shalom Maidenbaum’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