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· Private foundation

Zukowski Diamond Foundation

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.

$255k
Granted FY2025still arriving
25
Grants FY2025still arriving
5
States reached
$95k
Largest
01What it funds
0199% classified

What it funded, over time

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

Arts & Culture$603kEducation$123kReligion$63kRecreation & Sports$9kFood & Nutrition$4kHousing & Shelter$2kHealth$1kPhilanthropy$1kOther$0
02FY2025 · 25 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k19 grants · $15k
  • $10k–50k4 grants · $85k
  • $50k–250k2 grants · $155k
$500
Median grant
5
States reached
$43k
Total assets
Largest grants
RecipientAmount
STORM KING ART CENTER$95,000
CARLETON COLLEGE$60,000
MANITOGA INC$30,000
OLANA PARTNERSHIP$25,000
WASSAIC PROJECT$20,000
NATIONAL TRUST FOR HISTORIC PRESERVATION$10,000
HOLY TRINITY EPISCOPAL CHURCH$5,000
PAWLING COUNTY RESOURCES CENTER$1,750
AKIN HALL ASSOCIATION$1,500
BOSCOBEL RESTORATION INC$550
WAMC - NORTHEAST PUBLIC RADIO$500
BRENNAN CENTER FOR JUSTICE$500
HOLY APOSTLES SOUP KITCHEN$500
WFUV FORDHAM UNIVERSITY$500
THE TIBET FUND$500
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 (FY17–25) land where the poverty rate runs at 12%, against an area that typically sits at 11%. 73% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%CARLETON COLLEGE: $60k → 11%OLANA PARTNERSHIP: $73k → 11%THOMAS COLE HISTORIC HOUSE: $4k → 11%STORM KING ART CENTER: $95k → 14%NATIONAL TRUST FOR HISTORIC PRESERVATION: $10k → 14%ASSIST INC: $6k → 11%CARLETON COLLEGE: $50k → 11%OLANA PARTNERSHIP: $50k → 11%STORM KING ART CENTER: $46k → 14%ASSIST INC: $5k → 11%CARLETON COLLEGE: $20k → 11%OLANA PARTNERSHIP: $25k → 11%STORM KING ART CENTER: $45k → 14%ASSIST INC: $5k → 11%CARLETON COLLEGE: $15k → 11%OLANA PARTNERSHIP: $24k → 11%STORM KING ART CENTER: $40k → 14%ASSIST INC: $5k → 11%CARLETON COLLEGE: $11k → 11%MANITOGA INC: $51k → 6%OLANA PARTNERSHIP: $15k → 11%STORM KING ART CENTER: $15k → 14%CARLETON COLLEGE: $3k → 11%MANITOGA INC: $40k → 6%THE OLANA PARTNERSHIP: $9k → 11%STORM KING ART CENTER: $11k → 14%MANITOGA INC: $32k → 6%OLANA PARTNERSHIP: $8k → 11%MANITOGA INC: $30k → 6%OLANA: $6k → 11%MANITOGA: $20k → 6%MANITOGA INC: $15k → 6%SAINT PETERS CHURCH: $25k → 17%MIDTOWN ARTS COMMON: $5k → 17%HISTORIC LANDMARK & PRESERVATION CENTER: $6k → 17%WASSAIC PROJECT: $24k → 9%WASSAIC PROJECT: $20k → 9%WASSAIC PROJECT: $15k → 9%WASSAIC PROJECT: $15k → 9%WASSAIC PROJECT: $15k → 9%WASSAIC PROJECT: $4k → 9%HOLY TRINITY EPISCOPAL CHURCH: $5k → 17%HOLY TRINITY EPISCOPAL CHURCH: $5k → 17%HOLY TRINITY EPISCOPAL CHURCH: $4k → 17%HOLY TRINITY EPISCOPAL CHURCH: $4k → 17%HOLY TRINITY CHURCH: $3k → 17%NEVELSON CHAPEL: $5k → 17%SEE ATTACHED STATEMENT: $56k → 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

VT
WA
MN
IL
WI
NY
MA
NJ
CT
CA
CO
DC
LA
TX
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 19% of Zukowski Diamond Foundation’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 85% of the giving stays in NY; by stated purpose, 66%.

Zukowski Diamond Foundationlessmore of its giving
Placed by recipient address
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

96%of every dollar goes to organizations it has funded before.
$1.0M · 34 repeat orgs$42k to everyone else

Grantees it renews have grown median revenue +26% since the first grant, against +2% for those funded once.

34 repeat relationships: 20 still active in FY2025, 14 since wound down; 5 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

34
26

Total granted

$1.0M
$30k

Median revenue growth · since first grant

+26%
+2%

Still filing today

59%
42%

New vs renewed · share of each year

In FY2025, 95% of grant dollars renewed an existing relationship; $12k went to new ones.

50%100%’19’20’21’22’23’24’25
RenewedFirst-time

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

’19’20’21’22’23’24’25
Arts & CultureEducationInternationalHealthEnvironmentFood & NutritionOther
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

  • SK
    STORM KING ART CENTER
    6× · 2019–2025 · $252k · revenue +26%
  • CC
    CARLETON COLLEGE
    6× · 2019–2025 · $159k · revenue +32%
  • TW
    THE WASSAIC PROJECT INC
    6× · 2019–2025 · $92k · revenue +139%

Funded once

  • O
    OLANA
    one grant, 2019 · $6k
  • HL
    HISTORIC LANDMARK & PRESERVATION CENTER
    one grant, 2024 · $6k
  • AA
    ARTS AND ARCHITECTURE CONSERVANCY AT SAINT PETER'S INC
    one grant, 2019 · $5k · revenue -50%
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
The Neue Galerie New York
Arts & Culture
2
The Pierpont Morgan Library

The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.

Education
3
Henry E Huntington Library and Art Gallery

The huntington library, art museum, and botanical gardens shares its world-renowned collections to support scholarship, foster learning, inspire creativity, and offer transformative experiences for diverse audiences.

Arts & Culture
4
The Brooklyn Institute of Arts and Sciences

The mission of the brooklyn institute of arts and sciences, d/b/a brooklyn museum (the "museum") is to bring people together through art and experiences that inspire celebration, compassion, courage, and the will to act. (see schedule o).

Arts & Culture
5
Metropolitan Museum of Art

The metropolitan museum of art collects, studies, conserves, and presents significant works of art across all times and cultures in order to connect people to creativity, knowledge, and ideas.

Arts & Culture
6
New York Historical Society

The founding mission of the new-york historical society ("the new york historical "tnyh") is to collect, preserve, and interpret, for the broadest possible public, material relevant to the history of the united states in general and of new…

Arts & Culture
7
The Phillips Collection

The phillips collection is the oldest museum of modern and contemporary art in the u.s. in addition to presentation of works from the permanent collection and special exhibitions, the museum maintains active educational, academic,…

Arts & Culture
8
Robert Rauschenberg Foundation
Arts & Culture
9
Kadist Collection Manager Inc
Arts & Culture
10
Clyfford Still Museum

Home to the art and legacy of the american painter clyfford still, we invite all to explore the potential of individual creative endeavor.

Arts & Culture
11
Munson-Williams-Proctor Arts Institute

Munson-williams-proctor arts institute (mwpai) is a fine arts center dedicated to serving diverse audiences by advancing the appreciation, understanding, and enjoyment of the arts. the art institute aims to promote interest and…

Arts & Culture
12
Isabella Stewart Gardner Museum Inc

Organization's mission statement true to the ambitious vision of its founder and her spirit of creative risk-taking, the mission of the isabella stewart gardner museum is: - to bring to life and preserve the rich historic collection; - to…

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is The Victorian Society in America; the most unlike its peers is Boscobel Restoration Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

36 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. 36 of the 66 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)
8
Early backer (in before they grew)
36/36
Grantees still filing
22/36
Grew since first funded

Where the money sits, by cause and then by grantee

STORM KING ART CENTER: $251,950 · Arts & CultureSTORM KING ART CENTERTHE WASSAIC PROJECT INC: $92,300 · Arts & CultureTHE WASSAIC PROJECT INC+12 more: $32,050 · Arts & Culture+12 moreTHE OLANA PARTNERSHIP: $202,500 · Community ImprovementTHE OLANA PARTNERSHIPMANITOGA INC: $188,000 · EnvironmentMANITOGA INC+1 more: $350 · EnvironmentCARLETON COLLEGE: $159,000 · EducationCARLETON COLLEGE+2 more: $750 · EducationSAINT PETERS CHURCH: $27,000 · OtherSAINT PETER…HOLY TRINITY EPISCOPAL CHURCH: $23,000 · OtherHOLY TRINIT…GUSTAVUS ADOLPHUS CHURCH: $8,500 · OtherGUSTAVUS AD…PAWLING COUNTY RESOURCES CENTER: $6,800 · OtherPAWLING COU…OLANA: $6,000 · OtherOLANAHISTORIC LANDMARK & PRESERVATION CENTER: $5,500 · OtherIndividual grant recipient: $5,000 · Other+33 more: $27,695 · Other+33 moreAMERICAN SECONDARY SCHOOLS FOR INTERNATIONAL STUDENTS AND TEACHERS INC: $23,500 · InternationalTibet Fund Inc: $1,000 · International+1 more: $250 · InternationalGLOBAL HEALTHWORKS FOUNDATION: $1,100 · HealthCaringBridge: $500 · HealthTHE EQUUS EFFECT INC: $200 · Health
Arts & Culture$376,300Community Improvement$202,500Environment$188,350Education$159,750Other$109,495International$24,750Health$1,800

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 budgetSTORM KING ART CENTER: $251,950 over 6y, 0.4% of budgetTHE OLANA PARTNERSHIP: $202,500 over 7y, 2.6% of budgetMANITOGA INC: $188,000 over 6y, 4.6% of budgetCARLETON COLLEGE: $159,000 over 6y, 0.0% of budgetTHE WASSAIC PROJECT INC: $92,300 over 6y, 3.2% of budgetAMERICAN SECONDARY SCHOOLS FOR INTERNATIONAL STUDENTS AND TEACHERS INC: $23,500 over 5y, 0.1% of budgetNATIONAL TRUST FOR HISTORIC PRESERVATION IN THE UNITED STATES: $10,000 over 1y, 0.0% of budgetTHOMAS COLE HISTORIC HOUSE: $5,600 over 3y, 0.2% of budgetARTS AND ARCHITECTURE CONSERVANCY AT SAINT PETER'S INC: $5,000 over 1y, 1.8% of budgetAKIN HALL ASSOCIATION: $3,200 over 4y, 0.6% of budgetSMITHSONIAN INSTITUTION: $3,000 over 2y, 0.0% of budgetThe Archive of Contemporary Music: $2,250 over 7y, 0.3% of budgetCOALITION FOR THE HOMELESS INC: $2,250 over 7y, 0.0% of budgetWAMC: $2,000 over 4y, 0.0% of budgetGLYNWOOD CENTER INC: $1,600 over 4y, 0.0% of budgetCAMELLAS CUPBOARD INCORPORATED: $1,420 over 2y, 0.4% of budgetGLOBAL HEALTHWORKS FOUNDATION: $1,100 over 2y, 1.3% of budgetNEW YORK PUBLIC RADIO: $1,000 over 2y, 0.0% of budgetPawling Community Foundation: $1,000 over 2y, 8.8% of budgetTibet Fund Inc: $1,000 over 2y, 0.0% of budgetREX BRASHER ASSOCIATION INC: $1,000 over 2y, 1.0% of budgetAssoc for Preservation of Historic Natchitoches: $500 over 1y, 0.1% of budgetWILLIAM J BRENNAN CENTER FOR JUSTICE INC: $500 over 1y, 0.0% of budgetCaringBridge: $500 over 1y, 0.0% of budgetDECORATIVE ARTS SOCIETY: $500 over 1y, 0.1% of budgetROULETTE INTERMEDIUM INC: $400 over 1y, 0.0% of budgetThe Oblong Land Conservancy Inc: $350 over 2y, 0.7% of budgetPAWLING FREE LIBRARY: $250 over 1y, 0.0% of budgetTHE VICTORIAN SOCIETY IN AMERICA: $250 over 1y, 0.1% of budgetCITY HARVEST INC: $250 over 1y, 0.0% of budgetPIONEER WORKS ART FOUNDATION: $250 over 1y, 0.0% of budgetEL PORVENIR: $250 over 1y, 0.0% of budgetTHE EQUUS EFFECT INC: $200 over 1y, 0.1% of budgetThe Williams Project: $100 over 1y, 0.0% of budgetEVERYBODY WINS VERMONT INC: $100 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 STORM KING ART CENTER ↗
  • Who funds THE OLANA PARTNERSHIP ↗
  • Who funds MANITOGA INC ↗
  • Who funds CARLETON COLLEGE ↗
  • Who funds THE WASSAIC PROJECT INC ↗
  • Who funds AMERICAN SECONDARY SCHOOLS FOR INTERNATIONAL STUDENTS AND TEACHERS INC ↗
  • Who funds NATIONAL TRUST FOR HISTORIC PRESERVATION IN THE UNITED STATES ↗
  • Who funds THOMAS COLE HISTORIC HOUSE ↗
  • Who funds ARTS AND ARCHITECTURE CONSERVANCY AT SAINT PETER'S INC ↗
  • Who funds AKIN HALL ASSOCIATION ↗
  • Who funds SMITHSONIAN INSTITUTION ↗
  • Who funds The Archive of Contemporary Music ↗
  • Who funds COALITION FOR THE HOMELESS INC ↗
  • Who funds WAMC ↗
  • Who funds GLYNWOOD CENTER INC ↗
  • Who funds CAMELLAS CUPBOARD INCORPORATED ↗
  • Who funds GLOBAL HEALTHWORKS FOUNDATION ↗
  • Who funds BOSCOBEL RESTORATION INC ↗
  • Who funds NEW YORK PUBLIC RADIO ↗
  • Who funds Pawling Community Foundation ↗
  • Who funds Tibet Fund Inc ↗
  • Who funds REX BRASHER ASSOCIATION INC ↗
  • Who funds Assoc for Preservation of Historic Natchitoches ↗

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 FundNY15.3× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · Lostand Foundation · Berkshire Taconic Community Foundation Inc · The New York Community Trust · Ibm International Foundation · National Philanthropic Trust · Jpmorgan Chase Foundation · The Pfizer Foundation Inc · American Endowment Foundation · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Paypal Charitable Giving 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 Zukowski Diamond Foundation funds: left to right is the share of its income from government, bottom to top the share from Zukowski Diamond Foundation. 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%25%50%75%100%share of the org’s income from government →median 16%
  • The Equus Effect Inc: 16% of income from government
no gov moneyreceives it· size = income
4get no government money at all
10report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
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 Zukowski Diamond Foundation?

Find your warmest path to Zukowski Diamond Foundation 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 66 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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