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The Leonard and Joan Horvitz Foundation at a glance

· Private foundation

The Leonard and Joan Horvitz Foundation

Its FY2022 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$833k
Granted FY2022
84
Grants FY2022
15
States reached
$150k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
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 2022.

Philanthropy$1.0MHealth$947kReligion$167kEducation$150kHuman Services$111kArts & Culture$81kYouth Development$25kInternational$23kOther$0
02FY2022 · 84 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2022

  • Under $10k66 grants · $184k
  • $10k–50k13 grants · $195k
  • $50k–250k5 grants · $454k
$2,500
Median grant
15
States reached
$0
Total assets
Largest grants
RecipientAmount
CHILDREN'S TUMOR FOUNDATION$150,000
CASE WESTERN RESERVE UNIVERSITY SCHOOL OF MEDICINE$100,000
UNIVERSITY HOSPITALS SEIDMAN CANCER CENTER$100,000
UNITED WAY OF GREATER CLEVELAND$54,000
CHILDREN'S TUMOR FOUNDATION$50,000
TEMPLE EMANU EL$32,650
AISH HATORAH$25,000
UNIVERSITY SCHOOL$25,000
AISH HATORAH$20,000
THE MUSICAL ARTS ASSOCIATION$12,500
BRIGHAM AND WOMEN'S HOSPITAL$10,000
UNITED STATES HOLOCAUST MEMORIAL MUSEUM$10,000
PIANO CLEVELAND$10,000
OHIO STATE UNIVERSITY COLLEGE OF VETERINARY MEDICINE$10,000
WASHINGTON INSTITUTE FOR NEAR EAST POLICY$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 (FY22–22, $13k) land where the poverty rate runs at 15%, against an area that typically sits at 12%. 88% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%CHALLENGE ASPEN: $2k → 6%THE MANDEL JEWISH COMMUNITY CENTER OF CLEVELAND: $10k → 17%SHOES AND CLOTHES FOR KIDS INC: $2k → 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
OH
PA
NJ
CT
CO
VA
MD
NC
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.

28%of every dollar goes to organizations it has funded before.
$489k · 6 repeat orgs$1.2M to everyone else

6 repeat relationships: 5 still active in FY2022, 1 since wound down; 70 grantees were first funded in FY2022 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

6
2

Total granted

$489k
$600k

Still filing today

50%
0%

New vs renewed · share of each year

In FY2022, 20% of grant dollars renewed an existing relationship; $641k went to new ones.

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

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

’17’18’19’20’21’22
EducationArts & CultureHealthInternationalCivil RightsReligionOther
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

  • UW
    UNITED WAY OF GREATER CLEVELAND
    5× · 2017–2022 · $174k · revenue -56%
  • UH
    UNIVERSITY HOSPITALS SEIDMAN CANCER CENTER
    2× · 2017–2022 · $125k
  • JF
    JEWISH FAMILY SERVICE ASSOCIATION OF CLEVELAND OHIO
    5× · 2017–2022 · $100k · revenue +26%

Funded once

  • CC
    CLEVELAND CLINIC FOUNDATION
    one grant, 2017 · $500k
  • UH
    UNIVERSITY HOSPITALS
    one grant, 2017 · $100k
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
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
2
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
3
Lehigh University

The university's goal in the coming decade is to advance learning through the integration of teaching, research and service to others. the core of this goal is to prepare graduates to engage with the world and lead lives of meaning. to do…

Education
4
The Shalom Hartman Institute of North America

The shalom hartman institute (shi) is a leading research and educational center serving israel and world jewry. we work to enrich the moral and spiritual life of israel and the jewish people, deepen the commitment to pluralism and israel's…

International
5
Albert Einstein College of Medicine

Committed to exceptional healthcare quality for all and actively engaged with our community, einstein drives scientific discovery and educates compassionate leaders in health and science.

Education
6
Foreign Policy Research Institute

The foreign policy research institute (frpi) is dedicated to producing the highest quality scholarship and nonpartisan policy analysis focused on crucial foreign policy and national security challenges facing the united states. we educate…

International
7
Charles E Smith Jewish Day School of Greater Washington Inc

Cesjds is a pre k-12 grade independent day school that delivers an exemplary general and jewish education. our purpose is to ensure a vibrant jewish future by fostering the growth of confident, compassionate thinkers who engage the world…

Education
8
Minneapolis Jewish Federation

Minneapolis jewish federation is a nonprofit organization that promotes a culture of philanthropy, leverages resources to meet local and global jewish needs, and facilitates community planning to ensure a thriving and secure future.

Philanthropy
9
Furman University

The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.

Education
10
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
11
Stony Brook Internists University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
12
Neurology Associates of Stony Brook University Faculty Practice Corp

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
How this is measured
The grantee most central to the portfolio’s shape is The Aspen Institute Inc; the most unlike its peers is Foundation for Individual Rights and Expression 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

62 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. 62 of the 82 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)
6
Early backer (in before they grew)
62/62
Grantees still filing
49/62
Grew since first funded

Where the money sits, by cause and then by grantee

JEWISH FEDERATION OF CLEVELAND: $850,000 · PhilanthropyJEWISH FEDERATION OF CLEVELANDUNITED WAY OF GREATER CLEVELAND: $174,000 · PhilanthropyUNITED WAY OF GREATER CLEVELAND+2 more: $15,000 · PhilanthropyCLEVELAND CLINIC FOUNDATION: $500,000 · OtherCLEVELAND CLINIC FOUNDATIONUNIVERSITY HOSPITALS SEIDMAN CANCER CENTER: $125,000 · OtherUNIVERSITY HOSPITALS SEIDMAN CANCER CENTERUNIVERSITY HOSPITALS: $100,000 · OtherUNIVERSITY HOSPITALSTHE TEMPLE TIFERETH ISRAEL: $75,000 · OtherTHE TEMPLE TIFERETH ISRAELAISH HATORAH: $45,000 · Other+36 more: $164,250 · Other+36 moreCHILDREN'S TUMOR FOUNDATION: $200,000 · HealthCHILDREN'…+6 more: $8,220 · HealthCASE WESTERN RESERVE UNIVERSITY: $101,000 · EducationUNIVERSITY SCHOOL: $25,000 · EducationTHE CLEVELAND INSTITUTE OF ART: $14,000 · EducationCLEVELAND INSTITUTE OF MUSIC: $9,000 · EducationHATHAWAY BROWN SCHOOL: $8,000 · Education+7 more: $16,000 · EducationJEWISH FAMILY SERVICE ASSOCIATION OF CLEVELAND OHIO: $100,000 · ReligionGROSS SCHECHTER DAY SCHOOL: $5,000 · Religion+1 more: $2,000 · ReligionThe Musical Arts Association: $12,500 · Arts & CultureCLARION PROJECT INC: $7,500 · Arts & CultureCLEVELAND MUSEUM OF ART: $5,000 · Arts & CultureMUSIC ASSOCIATES OF ASPEN INC: $4,000 · Arts & CultureAMERICAN FRIENDS OF THE ISRAEL MUSEUM: $3,000 · Arts & CultureTHE CLEVELAND PLAY HOUSE: $2,500 · Arts & CultureAMERICAN COUNCIL OF TRUSTEES AND ALUMNI: $2,500 · Arts & CultureLAKEVIEW CEMETERY FOUNDATION: $1,800 · Arts & CultureCLEVELAND MUSEUM OF NATURAL HISTORY: $1,500 · Arts & Culture+1 more: $1,000 · Arts & CultureWASHINGTON INSTITUTE FOR NEAR EAST POLICY: $10,000 · InternationalFoundation for the Defense of Democracies Inc: $4,000 · InternationalFRIENDS OF THE ISRAEL DEFENSE FORCES: $3,600 · InternationalINVESTIGATIVE PROJECT ON TERRORISM FOUNDATION: $2,500 · InternationalJEWISH INSTITUTE FOR NATIONAL SECURITY OF AMERICA: $2,000 · International
Philanthropy$1,039,000Other$1,009,250Health$208,220Education$173,000Religion$107,000Arts & Culture$41,300International$22,100

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 budgetJEWISH FEDERATION OF CLEVELAND: $850,000 over 6y, 0.3% of budgetCHILDREN'S TUMOR FOUNDATION: $200,000 over 1y, 1.2% of budgetUNITED WAY OF GREATER CLEVELAND: $174,000 over 5y, 0.3% of budgetCASE WESTERN RESERVE UNIVERSITY: $101,000 over 1y, 0.0% of budgetJEWISH FAMILY SERVICE ASSOCIATION OF CLEVELAND OHIO: $100,000 over 5y, 0.1% of budgetUNIVERSITY SCHOOL: $25,000 over 1y, 0.1% of budgetTHE CLEVELAND INSTITUTE OF ART: $14,000 over 2y, 0.0% of budgetThe Musical Arts Association: $12,500 over 1y, 0.0% of budgetThe Mandel Jewish Community Center of Cleveland: $10,000 over 1y, 0.3% of budgetWASHINGTON INSTITUTE FOR NEAR EAST POLICY: $10,000 over 1y, 0.1% of budgetHudson Institute Inc: $10,000 over 1y, 0.0% of budgetPIANO INTERNATIONAL ASSOC OF NORTHERN OH: $10,000 over 1y, 0.8% of budgetGREATER MIAMI JEWISH FEDERATION INC: $10,000 over 1y, 0.0% of budgetCLEVELAND INSTITUTE OF MUSIC: $9,000 over 1y, 0.0% of budgetHATHAWAY BROWN SCHOOL: $8,000 over 1y, 0.0% of budgetCLARION PROJECT INC: $7,500 over 1y, 0.5% of budgetCLEVELAND MUSEUM OF ART: $5,000 over 1y, 0.0% of budgetAMERICAN ENTERPRISE INSTITUTE FOR PUBLIC POLICY RESEARCH: $5,000 over 1y, 0.0% of budgetJOSEPH & FLORENCE MANDEL JEWISH DAY SCHOOL: $5,000 over 1y, 0.1% of budgetHEBREW ACADEMY OF CLEVELAND: $5,000 over 1y, 0.0% of budgetFUCHS MIZRACHI SCHOOLS: $5,000 over 1y, 0.0% of budgetFRIENDS OF BREAKTHROUGH SCHOOLS: $5,000 over 1y, 0.0% of budgetASPEN COMMUNITY FOUNDATION: $5,000 over 1y, 0.0% of budgetGROSS SCHECHTER DAY SCHOOL: $5,000 over 1y, 0.1% of budgetSTATE POLICY NETWORK: $5,000 over 1y, 0.0% of budgetFoundation for the Defense of Democracies Inc: $4,000 over 1y, 0.0% of budgetMUSIC ASSOCIATES OF ASPEN INC: $4,000 over 1y, 0.0% of budgetINSTITUTE FOR JUSTICE: $4,000 over 1y, 0.0% of budgetFOUNDATION FOR INDIVIDUAL RIGHTS AND EXPRESSION INC: $4,000 over 1y, 0.0% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES: $3,600 over 1y, 0.0% of budgetTHE ASPEN INSTITUTE INC: $3,500 over 1y, 0.0% of budgetAMERICAN FRIENDS OF THE ISRAEL MUSEUM: $3,000 over 1y, 0.0% of budgetCENTER FOR INDIVIDUAL RIGHTS: $3,000 over 1y, 0.2% of budgetINVESTIGATIVE PROJECT ON TERRORISM FOUNDATION: $2,500 over 1y, 0.1% of budgetTHE CLEVELAND PLAY HOUSE: $2,500 over 1y, 0.0% of budgetSERIOUSFUN CHILDREN'S NETWORK: $2,500 over 1y, 0.0% of budgetAMERICAN COUNCIL OF TRUSTEES AND ALUMNI: $2,500 over 1y, 0.1% of budgetNATIONAL ASSOCIATION OF SCHOLARS INC: $2,500 over 1y, 0.1% of budgetHOMES FOR OUR TROOPS INC: $2,000 over 1y, 0.0% of budgetNATIONAL LEGAL AND POLICY CENTER: $2,000 over 1y, 0.1% of budgetZIONIST ORGANIZATION OF AMERICA: $2,000 over 1y, 0.0% of budgetJEWISH INSTITUTE FOR NATIONAL SECURITY OF AMERICA: $2,000 over 1y, 0.0% of budgetAspen Jewish Center: $2,000 over 1y, 0.2% of budgetLAKEVIEW CEMETERY FOUNDATION: $1,800 over 1y, 0.1% of budgetLIFEACT: $1,720 over 1y, 0.1% of budgetTHE CLEVELAND ANIMAL PROTECTIVE LEAGUE: $1,500 over 1y, 0.0% of budgetCLEVELAND MUSEUM OF NATURAL HISTORY: $1,500 over 1y, 0.0% of budgetSHOES AND CLOTHES FOR KIDS: $1,500 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.

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.

Richard Horvitz and E…Rdm FoundationThe Albert B & Audrey…Jewish Federation of …The Wuliger FoundationThe Cleveland Foundat…The Lozick Family Fou…Jane and Jon Outcalt …Irving I Stone Founda…Higley Fund of the Cl…Giant Eagle FoundationAbr Family Foundation…
Richard Horvitz and Erica Hartman-Horvitz FoundationOH58× affinity25 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Richard Horvitz and Erica Hartman-Horvitz Foundation · Rdm Foundation · The Albert B & Audrey G Ratner Family Foundation · Jewish Federation of Cleveland · The Wuliger Foundation · The Cleveland Foundation · The Lozick Family Foundation · Jane and Jon Outcalt Foundation · Irving I Stone Foundation · Higley Fund of the Cleveland Foundation · Giant Eagle Foundation · Abr Family Foundation No 1

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 Leonard and Joan Horvitz Foundation funds: left to right is the share of its income from government, bottom to top the share from The Leonard and Joan Horvitz 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%13%25%38%50%share of the org’s income from government →
    no gov moneyreceives it· size = income
    4get no government money at all
    18report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–50%
    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 Leonard and Joan Horvitz Foundation?

    Find your warmest path to The Leonard and Joan Horvitz 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 82 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 2022, released 2022. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Leonard and Joan Horvitz’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