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The Roni Horn Foundation at a glance

· Private foundation

The Roni Horn 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.

$270k
Granted FY2025still arriving
6
Grants FY2025still arriving
3
States reached
$60k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$637kArts & Culture$325kFood & Nutrition$130kCivil Rights$125kEnvironment$125kCrime & Legal$85kYouth Development$70kScience & Tech$45kOther$0
02FY2025 · 6 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $10k–50k3 grants · $90k
  • $50k–250k3 grants · $180k
$60,000
Median grant
3
States reached
$8.8M
Total assets
Largest grants
RecipientAmount
NATURAL RESOURCES DEFENSE COUNCIL$60,000
THE NEW YORK PUBLIC LIBRARY$60,000
AMERICAN INDIAN COLLEGE FUND$60,000
GLOBAL FUND FOR WOMEN$30,000
GOD'S LOVE WE DELIVER$30,000
PROPUBLICA$30,000
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:

Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 15%, against an area that typically sits at 11%. 58% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%SIERRA CLUB FOUNDATION: $30k → 10%GLOBAL FUND FOR WOMEN: $35k → 10%NATURAL RESOURCES DEFENSE COUNCIL: $60k → 17%NEW YOURK FOUNDATION FOR THE ART: $35k → 20%CHINATI FOUNDATION: $20k → 23%NATIONAL WOMENS LAW CENTER: $35k → 14%AMERICAN INDIAN COLLEGE FUND: $60k → 10%GLOBAL FUND FOR WOMEN: $30k → 10%NATURAL RESOURCES DEFENSE COUNCIL: $35k → 17%NEW YOURK FOUNDATION FOR THE ART: $35k → 20%CHINATI FOUNDATION: $15k → 23%NATIONAL WOMENS LAW CENTER: $25k → 14%AMERICAN INDIAN COLLEGE FUND: $60k → 10%GLOBAL FUND FOR WOMEN: $30k → 10%WHITNEY MUSEUM OF AMERICAN ART: $15k → 17%NEW YOURK FOUNDATION FOR THE ART: $25k → 20%CHINATI FOUNDATION: $10k → 23%NATIONAL WOMENS LAW CENTER: $25k → 14%AMERICAN INDIAN COLLEGE FUND: $60k → 10%GLOBAL FUND FOR WOMEN: $30k → 10%ART RESOURCES TRANSFER INC: $15k → 17%NEW YORK FOUNDATION FOR THE ARTS: $25k → 20%AMERICAN INDIAN COLLEGE FUND: $50k → 10%ART RESOURCES TRANSFER INC: $10k → 17%NEW YORK FOUNDATION FOR THE ARTS: $20k → 20%AMERICAN INDIAN COLLEGE FUND: $50k → 10%JUDD FOUNDATION: $10k → 17%STREB LAB FOR ACTION MECHANICS LAM: $25k → 20%AMERICAN INDIAN COLLEGE FUND: $30k → 10%PROPUBLICA: $30k → 17%STREB LAB FOR ACTION MECHANICS LAM: $20k → 20%AMERICAN INDIAN COLLEGE FUND: $25k → 10%GOD'S LOVE WE DELIVER: $30k → 17%STREB LAB FOR ACTION: $15k → 20%AMERICAN INDIAN COLLEGE FUND: $22k → 10%CITY MEALS ON WHEELS: $40k → 17%GIRLS EDUCATIONAL & MENTORING SERVICES: $35k → 17%GOD'S LOVE WE DELIVER: $30k → 17%CITY MEALS ON WHEELS: $30k → 17%GIRLS EDUCATIONAL & MENTORING SERVICES: $35k → 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.

94%of every dollar goes to organizations it has funded before.
$1.5M · 13 repeat orgs$100k to everyone else

13 repeat relationships: 5 still active in FY2025, 8 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

13
4

Total granted

$1.5M
$70k

Median revenue growth · since first grant

+59%
+60%

Still filing today

85%
75%

New vs renewed · share of each year

In FY2025, 89% of grant dollars renewed an existing relationship; $30k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Arts & CultureEducationEnvironmentFood & NutritionInternationalHealthOther
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

  • AMERICAN INDIAN COLLEGE FUND
    8× · 2018–2025 · $357k · revenue +161%
  • TN
    The New York Public Library Astor Lenox and Tilden Foundations
    7× · 2019–2025 · $280k · revenue +76%
  • NEW YORK FOUNDATION FOR THE ARTS INC
    5× · 2017–2022 · $140k · revenue +208%

Funded once

  • SC
    SIERRA CLUB FOUNDATION
    one grant, 2024 · $30k · revenue -70%
  • WM
    WHITNEY MUSEUM OF AMERICAN ARTgraduated
    one grant, 2020 · $15k · revenue +69%
  • SL
    STREB LAB FOR ACTION
    one grant, 2020 · $15k
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
San Diego Museum of Art

To inspire, educate and cultivate curiosity through great works of art.

Arts & Culture
2
The National Museum of Women in the Arts

The mission of the national museum of women in the arts is to collect, conserve and elevate the achievements of women artists from all nationalities and to educate the public on their outstanding accomplishments. we strive to accomplish…

—
3
Mint Museum of Art Inc

The mint museum welcomes all to be inspired and transformed through the power of art and creativity.

Arts & Culture
4
Museum of the City of New York

The museum of the city of new york fosters understanding of the distinctive nature of urban life in the world's most influential metropolis. it engages visitors by celebrating, documenting, and interpreting the city's past, present, and…

Arts & Culture
5
San Francisco Museum of Modern Art

See schedule osfmoma believes the art of our time is vital and shares it with passion and purpose, and that art and the creative process can open minds and help build a better world. for that reason, we assemble unparalleled collections,…

Arts & Culture
6
Apex Art Curatorial Program Inc

Apex Art Curatorial Program is a resolutely noncommercial visual art exhibition space which provides curators and artists with a venue dedicated to ideas that are often too provocative or too small in scope for display elsewhere. Apex Art…

Arts & Culture
7
American Museum of Natural History

The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."

Arts & Culture
8
The Studio Museum in Harlem

The studio museum in harlem is a contemporary art museum that focuses on the work of artists of african descent - as well as work that has been inspired and influenced by african culture - past and present; through its exhibitions,…

Arts & Culture
9
Institute of Contemporary Art Miami Inc

The institute of contemporary art, miami (ica miami), is dedicated to promoting the work of contemporary artists, and to the exchange of art and ideas throughout the miami region and internationally. through an energetic calendar of…

Arts & Culture
10
Solomon R Guggenheim Foundation

Committed to innovation, the solomon r. guggenheim foundation (the "foundation") collects, (continued on schedule o)

Arts & Culture
11
National Museum of Wildlife Art of the United States

Impart knowledge and appreciation of humanity's relationship with wildlife through art.

Arts & Culture
12
The Jewish Museum

The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is New York Foundation for the Arts Inc; the most unlike its peers is Art Resources Transfer 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

15 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. 15 of the 18 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)
15/15
Grantees still filing
12/15
Grew since first funded

Where the money sits, by cause and then by grantee

AMERICAN INDIAN COLLEGE FUND: $357,000 · EducationAMERICAN INDIAN COLLEGE FUNDThe New York Public Library Astor Lenox and Tilden Foundations: $280,000 · EducationThe New York Public Library Astor Lenox and Ti…NEW YORK FOUNDATION FOR THE ARTS INC: $140,000 · Arts & CultureNEW YORK FOUNDATI…THE CHINATI FOUNDATION: $45,000 · Arts & CultureTHE CHINATI FOUND…PRO PUBLICA INC: $30,000 · Arts & CulturePRO PUBLICA INCWHITNEY MUSEUM OF AMERICAN ART: $15,000 · Arts & CultureWHITNEY MUSEUM OF…JUDD FOUNDATION: $10,000 · Arts & CultureNATIONAL WOMEN'S LAW CENTER: $85,000 · OtherNATIONAL WOMEN'S…ARTANGEL TRUST: $60,000 · OtherARTANGEL TRUSTSTREB LAB FOR ACTION MECHANICS LAM: $45,000 · OtherSTREB LAB FOR AC…ART RESOURCES TRANSFER INC: $25,000 · OtherART RESOURCES TR…STREB LAB FOR ACTION: $15,000 · OtherSTREB LAB FOR AC…CITYMEALS-ON-WHEELS: $70,000 · Food & NutritionCITYMEALS…GOD'S LOVE WE DELIVER INC: $60,000 · Food & NutritionGOD'S LOV…GLOBAL FUND FOR WOMEN INC: $125,000 · InternationalGLOBAL FU…NATURAL RESOURCES DEFENSE COUNCIL INC: $95,000 · EnvironmentNATURAL R…SIERRA CLUB FOUNDATION: $30,000 · EnvironmentSIERRA CL…GIRLS EDUCATIONAL AND MENTORING SERVICES INC: $70,000 · Health
Education$637,000Arts & Culture$240,000Other$230,000Food & Nutrition$130,000International$125,000Environment$125,000Health$70,000

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 INDIAN COLLEGE FUND: $357,000 over 8y, 0.1% of budgetThe New York Public Library Astor Lenox and Tilden Foundations: $280,000 over 7y, 0.0% of budgetNEW YORK FOUNDATION FOR THE ARTS INC: $140,000 over 5y, 0.3% of budgetGLOBAL FUND FOR WOMEN INC: $125,000 over 4y, 0.1% of budgetNATURAL RESOURCES DEFENSE COUNCIL INC: $95,000 over 2y, 0.0% of budgetNATIONAL WOMEN'S LAW CENTER: $85,000 over 3y, 0.1% of budgetGIRLS EDUCATIONAL AND MENTORING SERVICES INC: $70,000 over 2y, 1.1% of budgetCITYMEALS-ON-WHEELS: $70,000 over 2y, 0.1% of budgetGOD'S LOVE WE DELIVER INC: $60,000 over 2y, 0.1% of budgetTHE CHINATI FOUNDATION: $45,000 over 3y, 0.5% of budgetSIERRA CLUB FOUNDATION: $30,000 over 1y, 0.0% of budgetART RESOURCES TRANSFER INC: $25,000 over 2y, 1.3% of budgetWHITNEY MUSEUM OF AMERICAN ART: $15,000 over 1y, 0.0% of budgetJUDD FOUNDATION: $10,000 over 1y, 0.1% 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.

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 set of overlaps that mostly run through this funder rather than between each other.

National Philanthropi…
National Philanthropic TrustPA10.3× affinity4 shared granteesties to 0 of 0Hover any node to trace its alignments.Compare side by side →

Open a dossier: National Philanthropic Trust

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 Roni Horn Foundation funds: left to right is the share of its income from government, bottom to top the share from The Roni Horn Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    8report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–20%
    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 The Roni Horn Foundation?

    Find your warmest path to The Roni Horn 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 18 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

    Play a game based on Roni Horn’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