The Joseph and Florence Mandel Family-
The Joseph and Florence Mandel Family Foundation is a private foundation based in Cleveland, Ohio, established in 1963. The foundation operates as part of the broader Mandel family philanthropic network and manages substantial assets to support charitable causes across the United States and Israel.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$164.7M
+2.1% YoY
Annual Giving
$4.9M
-20.6% YoY
Grant Count
157
-13.3% YoY
Avg Grant Size
$31K
-8.4% YoY
Mission & Focus Areas
The foundation's mission is to contribute to the flourishing of the United States and Israel as just, inclusive, compassionate, and democratic societies, and to improve the quality of life of all citizens in both countries.
Primary funding areas include:
- Leadership Development — Investing in leaders of educational, nonprofit, and public sector institutions to deepen their impact on society
- Management of Nonprofits — Fostering excellence in the management of nonprofit and public sector institutions
- Humanities — Promoting the humanities as the foundation of human aspiration and experience
- Jewish Life — Helping successive generations discover the meaning and significance of Judaism and Jewish culture, and contributing to the vibrancy of Jewish communities
- Urban Engagement — Supporting neighborhood and community development as an expression of commitment to just, inclusive, and democratic societies
Grantmaking
The foundation makes grants across a broad range of causes without formal published grant programs. Grants are made at the discretion of trustees.
Grant Range
** $14 to $2,964,000
How to Apply
** No public application process; grants made by trustee discretion
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Geographic Focus
Where this funder awards grants
The foundation funds primarily in:
- Ohio — Cleveland and Beachwood area (primary focus)
- New York
- Florida
- California
- Maryland
- Texas
- New Jersey
The foundation also supports initiatives in Israel.
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
The Joseph and Florence Mandel Family Foundation (primary entity):
- Established: 1963
- Location: 1000 Lakeside Avenue, Cleveland, OH 44114
The Joseph and Florence Mandel Family- Penni M and Stephen J Weinberg Family Fund (related entity):
- Established: 2019
- Total Assets (2024): $164,706,854
- Total Revenues (2024): $19,072,911
- Total Expenses (2024): $10,535,000
- Annual Giving (2023): $6,201,571
Mandel Supporting Foundations Joseph C and Florence Mandel Fund (related entity):
- Established: 1982
- Total Assets (2017): $459,793,301
- Total Revenues (2017): $36,030,575
- Total Expenses (2017): $22,426,950
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $164,706,854 | $161,315,033 | $158,850,934 |
| Revenue | $19,072,911 | $7,471,619 | $5,424,238 |
| Expenses | $10,535,000 | $13,603,244 | $12,926,416 |
| Qualifying Distributions | $4,926,984 | $6,201,571 | $5,525,257 |
| Net Investment Income | $16,436,931 | $4,976,740 | $2,141,931 |
| Distributable Amount | $4,962,833 | $4,940,344 | $6,181,926 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
201 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Leadership team and compensation from IRS filings
Key trustees and family members include:
- Penni M. Weinberg
- Pamela M. Kahn
- Jennifer W. Dinner
The foundation is part of the legacy of Jack, Joseph, and Morton Mandel.
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| PENNI M WEINBERG | TRUSTEE | 1 | — |
| PAMELA M KAHN | TRUSTEE | 1 | — |
| JENNIFER W DINNER | TRUSTEE | 1 | — |
| STEPHANIE MILLER | TRUSTEE | 1 | — |
| MARK A MADEJA | ASSISTANT SECRETARY | 1 | — |
| LAVONDA D NAPKA | SECRETARY | 0.5 | — |
| LAVONDA D NAPKA | PRESIDENT | 0.5 | — |
| BRADY J HIVELY | TREASURER | 1 | — |
Recent News & Activity
Recent developments and announcements
The Jack, Joseph and Morton Mandel Foundation announced a $90 million matching grant for a Jewish Day School Transformation Initiative (2025)
Jack, Joseph and Morton Mandel Foundation awards $5 million to support scholarships\_\Penni and Stephen Weinberg made a $5 million gift to support the future Wolstein Center (2025)
$5 million gift from Penni and Stephen Weinberg will support ... - NewsThe Jack, Joseph and Morton Mandel Foundation awarded $5 million to support scholarships at Case Western Reserve University
$5 million gift from Penni and Stephen Weinberg will support ... - NewsThe foundation awarded $8 million to Case Western Reserve University
Jack, Joseph and Morton Mandel Foundation awards $5 million to support scholarships\_\The Jack, Joseph and Morton Mandel Foundation and Mandel Supporting Foundations awarded $8 million to a health education campus at Case Western Reserve University
Jack, Joseph and Morton Mandel Foundation awards $5 million to support scholarships\_\Subject Areas
Focus areas based on grantmaking activity
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Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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