Kalonymus Foundation
Kalonymus Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in SAN FRANCISCO, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $4.3M in total assets. In 2024, it awarded 1 grants totaling $163K. Net investment income was $376K.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$4.3M
+23.0% YoY
Annual Giving
$163K
+9.5% YoY
Grant Count
1
-50.0% YoY
Avg Grant Size
$163K
+119.0% YoY
Under IRS private-foundation payout rules, Kalonymus Foundation reported a distributable amount of $248K for 2024 — the minimum it must pay out in qualifying distributions.
About Kalonymus Foundation
Based on IRS filings
Kalonymus Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in SAN FRANCISCO, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $4.3M in total assets. In 2024, it awarded 1 grants totaling $163K. Net investment income was $376K.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $4,302,845 | $3,498,669 | $3,212,733 |
| Revenue | $1,067,251 | $463,706 | $370,756 |
| Expenses | $267,370 | $177,770 | $163,495 |
| Qualifying Distributions | $163,276 | $149,088 | $138,198 |
| Net Investment Income | $375,785 | $45,298 | $46,420 |
| Distributable Amount | $247,503 | $163,276 | $149,088 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 1 recipients in 2024
Grant Size Distribution
7 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include Shalom Hartman Institute of North America ($163,276).
| Recipient | Purpose | Amount |
|---|---|---|
| SHALOM HARTMAN INSTITUTE OF NORTH AMERICA NEW YORK, NY | TO DEVELOP AND IMPLEMENT UNIQUE MODELS OF PLURALISTIC, IN-DEPTH, TEXT-BASED TEACHING, SCHOLARSHIP, AND PROGRAMS THAT ADDRESS THE CHALLENGES FACING CONTEMPORARY NORTH AMERICAN JEWRY. | $163,276 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| RON D ZEFF | PRESIDENT, TREASURER AND D | 1 | — |
| MAXIMILIAN M ZEFF | SECRETARY | 1 | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is Kalonymus Foundation?
Kalonymus Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in SAN FRANCISCO, CA. It holds $4.3M in total assets as of 2024.
How large is Kalonymus Foundation?
As of 2024, Kalonymus Foundation holds $4.3M in total assets with $1.1M in annual revenue. It awarded 1 grants totaling $163K in 2024.
Where does Kalonymus Foundation operate?
Kalonymus Foundation has awarded grants in California, Connecticut, Massachusetts, New York, Texas.
What size grants does Kalonymus Foundation award?
In 2024, Kalonymus Foundation awarded 1 grants totaling $163K — an average of about $163K per grant, based on its IRS Form 990 filings.
How much is Kalonymus Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, Kalonymus Foundation reported a distributable amount of $248K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Kalonymus Foundation's EIN?
Kalonymus Foundation's EIN (Employer Identification Number) is 47-4622631. IRS Form 990 filing data is available on this page for 2020–2024.
Explore Open Grants
Browse active grant opportunities in Kalonymus Foundation's focus areas in our free grants database
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.