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· Private foundation

Miriam & Arthur Diamond Charitable Trust

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$2.8M
Granted FY2025still arriving
9
Grants FY2025still arriving
1
States reached
$1.9M
Largest
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Philanthropy$5.6MReligion$4.6MHuman Services$3.5MInternational$1.4MArts & Culture$929kEducation$125kOther$0
02FY2025 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $10k–50k3 grants · $78k
  • $50k–250k4 grants · $235k
  • $250k+2 grants · $2.5M
$50,000
Median grant
1
States reached
$32M
Total assets
Largest grants
RecipientAmount
UNITED JEWISH APPEAL FEDERATION OF NEW YORK$1,850,000
DOROT$600,000
JOSE LIMON DANCE FOUNDATION$75,000
CHABAD CROATIA MACHNE ISRAEL$60,000
CHAMAH INTERNATIONAL$50,000
SELF HELP COMMUNITY SERVICES INC$50,000
NCFJE RELEASED TIME PROGRAM$35,000
THE SCHOOL FOR CHILDREN WITH HIDDEN INTELLIGENCE$25,000
PROJECT EZRA$18,000
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 (FY20–25, $3.5M) land where the poverty rate runs at 17%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%SELF HELP COMMUNITY SERVICES INC: $50k → 17%SELF HELP COMMUNITY SERVICES INC: $50k → 17%SELF HELP COMMUNITY SERVICES INC: $50k → 17%SELF HELP COMMUNITY SERVICES INC: $50k → 17%SELF HELP COMMUNITY SERVICES INC: $25k → 17%PROJECT EZRA: $36k → 17%PROJECT EZRA: $18k → 17%PROJECT EZRA: $18k → 17%PROJECT EZRA: $18k → 17%PROJECT EZRA: $18k → 17%DOROT: $600k → 17%DOROT: $520k → 17%DOROT: $520k → 17%DOROT: $510k → 17%DOROT: $510k → 17%DOROT: $510k → 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.
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.

100%of every dollar goes to organizations it has funded before.
$16M · 21 repeat orgs$55k to everyone else

Grantees it renews have grown median revenue +24% since the first grant, against +7% for those funded once.

21 repeat relationships: 9 still active in FY2025, 12 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

21
2

Total granted

$16M
$55k

Median revenue growth · since first grant

+24%
+7%

Still filing today

48%
100%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’20’21’22’23’24’25
RenewedFirst-time

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

’20’21’22’23’24’25
Arts & CultureHuman ServicesPhilanthropyInternationalOther
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

  • UJ
    UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC
    3× · 2023–2025 · $5.6M · revenue +34%
  • FRIENDS OF THE ISRAEL DEFENSE FORCES
    5× · 2020–2024 · $1.2M · revenue +211%
  • JL
    JOSE LIMON DANCE FOUNDATION INC
    6× · 2020–2025 · $475k · revenue +49%

Funded once

  • CONNECTICUT PUBLIC BROADCASTING INC
    one grant, 2020 · $50k · revenue +2%
  • GA
    GEORGE AND NORA LONDON FOUNDATION FOR SINGERS INC
    one grant, 2022 · $5k · revenue +7%
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
Foundation for Modern Opera
—
2
San Francisco Opera Association

We believe opera is a uniquely compelling, entertaining and emotionally thrilling art form. our mission is to bring together growing audiences to experience opera's transformative power.

Arts & Culture
3
Ensemble Ipse Inc

Showcase new music practices

Arts & Culture
4
Roger Shapiro Fund for New Music
Arts & Culture
5
The Musicians Aid Society of New York Inc
Arts & Culture
6
The Wharton Institute for the Performing Arts Inc

To offer accessible, high-quality performing arts education that sparks personal growth and builds inclusive communities. its vision is to transform performing arts education in an inclusive community accessible to all.

—
7
New York Public Radio

To make the mind more curious, the heart more open, and the spirit more joyful through excellent audio programming that is deeply rooted in new york.

Arts & Culture
8
Opera At Florham Inc

To provide all sectors of the community with affordable, accessible operatic and related musical performances

Arts & Culture
9
The New York Festival of Song Inc

NYFOS is dedicated to creating intimate song concerts of great beauty and originality, weaving music, poetry, history and humor into unforgettable evenings of compelling theater, entertaining, educating and creating community among…

—
10
Orpheus Chamber Orchestra Inc

See schedule oorpheus chamber orchestra creates extraordinary musical experiences that enrich lives and empower individuals through collaboration, education, innovation, and a passion for artistic excellence. orpheus strives to be the…

Arts & Culture
11
Seventh Regiment Armory Conservancy Inc

Park avenue armory's mission is to enable a diverse range of artists to create, students to explore, and audiences to experience epic, adventurous, relevant work that cannot be done elsewhere in new york. with its soaring…

Arts & Culture
12
Artists and Musicians in Recovery
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 Musicians Emergency Fund Inc. 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

12 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. 12 of the 23 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)
0
Early backer (in before they grew)
12/12
Grantees still filing
8/12
Grew since first funded

Where the money sits, by cause and then by grantee

UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $5,598,800 · PhilanthropyUNITED JEWISH APPEAL-FEDERATION OF JEWI…UNITED JEWISH APPEAL: $4,068,000 · OtherUNITED JEWISH APPEALBEIT CHABAD ISRAELI CENTER INC: $225,000 · OtherNCFJE RELEASED TIME PROGRAM: $210,000 · OtherCHAMAH: $180,000 · OtherCHABAD CROATIA MACHNE ISRAEL: $180,000 · Other+8 more: $364,000 · Other+8 moreDOROT INC: $3,170,000 · Human ServicesDOROT INCSELFHELP COMMUNITY SERVICES INC: $225,000 · Human ServicesSELFHELP COMMUNITY SERVI…+1 more: $108,000 · Human ServicesFRIENDS OF THE ISRAEL DEFENSE FORCES: $1,210,000 · InternationalJOSE LIMON DANCE FOUNDATION INC: $475,000 · Arts & CultureSALON DE VIRTUOSI INC: $60,000 · Arts & CultureCONNECTICUT PUBLIC BROADCASTING INC: $50,000 · Arts & CultureTHE YOUNG PEOPLE'S CHORUS OF NEW YORK CITY INC: $50,000 · Arts & Culture+1 more: $5,000 · Arts & Culture
Philanthropy$5,598,800Other$5,227,000Human Services$3,503,000International$1,210,000Arts & Culture$640,000

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 budgetUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $5,598,800 over 3y, 0.7% of budgetDOROT INC: $3,170,000 over 6y, 6.4% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES: $1,210,000 over 5y, 0.4% of budgetJOSE LIMON DANCE FOUNDATION INC: $475,000 over 6y, 7.0% of budgetSELFHELP COMMUNITY SERVICES INC: $225,000 over 5y, 0.1% of budgetProject Ezra: $108,000 over 5y, 9.7% of budgetSALON DE VIRTUOSI INC: $60,000 over 3y, 18% of budgetCONNECTICUT PUBLIC BROADCASTING INC: $50,000 over 1y, 0.2% of budgetTHE YOUNG PEOPLE'S CHORUS OF NEW YORK CITY INC: $50,000 over 2y, 0.5% of budgetMUSICIANS EMERGENCY FUND INC: $45,000 over 3y, 5.6% of budgetON SITE OPERA INC: $15,000 over 2y, 1.8% of budgetGEORGE AND NORA LONDON FOUNDATION FOR SINGERS INC: $5,000 over 1y, 1.8% 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 UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
  • Who funds DOROT INC ↗
  • Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
  • Who funds JOSE LIMON DANCE FOUNDATION INC ↗
  • Who funds SELFHELP COMMUNITY SERVICES INC ↗
  • Who funds Project Ezra ↗
  • Who funds SALON DE VIRTUOSI INC ↗
  • Who funds CONNECTICUT PUBLIC BROADCASTING INC ↗
  • Who funds THE YOUNG PEOPLE'S CHORUS OF NEW YORK CITY INC ↗
  • Who funds MUSICIANS EMERGENCY FUND INC ↗
  • Who funds ON SITE OPERA INC ↗
  • Who funds GEORGE AND NORA LONDON FOUNDATION FOR SINGERS 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.

Fidelity Investments Charitable Gift FundMA5× affinity6 shared granteesties to 1 of 1Hover any node to trace its alignments.Compare side by side →

Open a dossier: 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 Miriam & Arthur Diamond Charitable Trust funds: left to right is the share of its income from government, bottom to top the share from Miriam & Arthur Diamond Charitable Trust. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%1%5%11%20%funder's share of their income ↑0%3%5%8%10%share of the org’s income from government →median 3%
  • Connecticut Public Broadcasting Inc: 3% of income from government
no gov moneyreceives it· size = income
0get no government money at all
4report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–10%
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 Miriam & Arthur Diamond Charitable Trust?

Find your warmest path to Miriam & Arthur Diamond Charitable Trust 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 23 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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