· 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.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2022.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2022
- Under $10k66 grants · $184k
- $10k–50k13 grants · $195k
- $50k–250k5 grants · $454k
| Recipient | Amount |
|---|---|
| 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 |
| UNIVERSITY SCHOOL | $25,000 |
| AISH HATORAH | $25,000 |
| AISH HATORAH | $20,000 |
| THE MUSICAL ARTS ASSOCIATION | $12,500 |
| PIANO CLEVELAND | $10,000 |
| THE MANDEL JEWISH COMMUNITY CENTER OF CLEVELAND | $10,000 |
| UNITED STATES HOLOCAUST MEMORIAL MUSEUM | $10,000 |
| BRIGHAM AND WOMEN'S HOSPITAL | $10,000 |
| OHIO STATE UNIVERSITY COLLEGE OF VETERINARY MEDICINE | $10,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your 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 your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
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
Organizations
Total granted
Still filing today
New vs renewed · share of each year
In FY2022, 20% of grant dollars renewed an existing relationship; $641k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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
- UWUNITED WAY OF GREATER CLEVELAND5× · 2017–2022 · $174k · revenue -56%
- UHUNIVERSITY HOSPITALS SEIDMAN CANCER CENTER2× · 2017–2022 · $125k
- JFJEWISH FAMILY SERVICE ASSOCIATION OF CLEVELAND OHIO5× · 2017–2022 · $100k · revenue +26%
Funded once
- CCCLEVELAND CLINIC FOUNDATIONone grant, 2017 · $500k
- UHUNIVERSITY HOSPITALSone grant, 2017 · $100k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
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.
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…
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…
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…
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.
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…
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…
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.
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.
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…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
For reference, the grantee most central to the portfolio’s shape is The Aspen Institute Inc and 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.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 42 years old; the field is 19. You back the established end — and your money leans older still.
The field is 18% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 11% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
62 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, 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; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds JEWISH FEDERATION OF CLEVELAND ↗
- Who funds CHILDREN'S TUMOR FOUNDATION ↗
- Who funds UNITED WAY OF GREATER CLEVELAND ↗
- Who funds CASE WESTERN RESERVE UNIVERSITY ↗
- Who funds JEWISH FAMILY SERVICE ASSOCIATION OF CLEVELAND OHIO ↗
- Who funds UNIVERSITY SCHOOL ↗
- Who funds THE CLEVELAND INSTITUTE OF ART ↗
- Who funds The Musical Arts Association ↗
- Who funds The Mandel Jewish Community Center of Cleveland ↗
- Who funds Hudson Institute Inc ↗
- Who funds WASHINGTON INSTITUTE FOR NEAR EAST POLICY ↗
- Who funds PIANO INTERNATIONAL ASSOC OF NORTHERN OH ↗
- Who funds GREATER MIAMI JEWISH FEDERATION INC ↗
- Who funds CLEVELAND INSTITUTE OF MUSIC ↗
- Who funds HATHAWAY BROWN SCHOOL ↗
- Who funds CLARION PROJECT INC ↗
- Who funds FRIENDS OF BREAKTHROUGH SCHOOLS ↗
- Who funds GROSS SCHECHTER DAY SCHOOL ↗
- Who funds CLEVELAND MUSEUM OF ART ↗
- Who funds JOSEPH & FLORENCE MANDEL JEWISH DAY SCHOOL ↗
- Who funds AMERICAN ENTERPRISE INSTITUTE FOR PUBLIC POLICY RESEARCH ↗
- Who funds HEBREW ACADEMY OF CLEVELAND ↗
- Who funds FUCHS MIZRACHI SCHOOLS ↗
- Who funds STATE POLICY NETWORK ↗
- Who funds ASPEN COMMUNITY FOUNDATION ↗
- Who funds Foundation for the Defense of Democracies Inc ↗
- Who funds FOUNDATION FOR INDIVIDUAL RIGHTS AND EXPRESSION INC ↗
- Who funds MUSIC ASSOCIATES OF ASPEN INC ↗
- Who funds INSTITUTE FOR JUSTICE ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization The Leonard and Joan Horvitz Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.
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.