Loewenberg Foundation
Loewenberg Foundation is a private foundation, based in New York, NY. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $74.7M in total assets. In 2025, it awarded 2 grants totaling $3.0M. Net investment income was $3.9M.
Loewenberg Foundation at a glance
In short: Loewenberg Foundation gave $3.0M across 2 grants in 2025 (avg $1.5M), mostly in Pennsylvania. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $3,000,000
- +90.5% vs 2024
- Grants made (2025)
- 2
- +0.0% vs 2024
- Average grant
- $1,500,000
- +90.5% vs 2024
- Median grant
- $1,500,000
- Total assets
- $74,675,167
- +2.3% vs 2024
- Primary geography
- Pennsylvania (80% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who Loewenberg Foundation funds
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2025
The largest 2025 recipient was National Philanthropic Trust ($2.4M). Together the top 2 received $3.0M.
Grant Size Distribution
12 grants across all recorded years
The most common grant size was in the $1–5M range: 4 grants of 12 (33%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 2 itemized grants.
Cities
How Loewenberg Foundation gives
- Giving grew 176% from 2022 to 2025. Method
- In 2025 it paid out 71% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $850K (2020) to $3.0M (2025). In 2025 it made 2 grants totaling $3.0M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| National Philanthropic Trust Jenkintown, PA | To Further Doner's Exempt Purpose | $2,400,000 |
| Chabad at Harvard Cambridge, MA | To Further Doner's Exempt Purpose | $600,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $74,675,167 | $4,973,446 | $3,302,351 | $3,000,000 | 2 | $3,001,500 | $3,914,572 | $4,210,638 |
| 2024 | $73,004,072 | $28,965,349 | $1,814,408 | $1,575,000 | 2 | $1,576,500 | $1,592,678 | $3,290,784 |
| 2023 | $45,853,131 | $30,475,475 | $1,175,945 | $1,065,000 | 3 | $1,065,750 | $849,289 | $1,160,559 |
| 2022 | $16,553,601 | $741,438 | $1,211,846 | $1,085,000 | 2 | $1,085,750 | $656,324 | $1,068,706 |
| 2021 | $17,024,009 | $1,269,545 | $1,135,733 | $873,000 | 3 | — | $1,205,810 | $1,086,087 |
| 2020 | $16,890,197 | $6,143,451 | $1,094,751 | $850,000 | 1 | — | $5,938,947 | $883,727 |
Under IRS private-foundation payout rules, Loewenberg Foundation reported a distributable amount of $4.2M for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Loewenberg Foundation is led by Elizabeth Loewenberg, President, Secretary & Director since 2023 (on filings since 2020); none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Elizabeth Loewenberg
President, Secretary & Director
Treasurer & Director → President, Secretary & Director, 2023
On filings since 2020
1 hr/week
No compensation reported
Diana Loewenberg
Treasurer & Director
President, Secretary & Director → Treasurer & Director, 2023
On filings since 2020
1 hr/week
No compensation reported
Jonathan Tannenhauser
Director
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Loewenberg Foundation
How much does Loewenberg Foundation give each year?
Loewenberg Foundation gave $3.0M across 2 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $1.6M across 2 grants.
How large is Loewenberg Foundation?
Loewenberg Foundation reported $74.7M in total assets on its 2025 IRS Form 990-PF. It paid out $3.0M in qualifying distributions that year, against a required minimum of $4.2M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
Where does Loewenberg Foundation operate?
Loewenberg Foundation has awarded grants in Massachusetts, New York, Pennsylvania.
What is Loewenberg Foundation's EIN?
Loewenberg Foundation's EIN (Employer Identification Number) is 13-6075586. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS August 10, 2026)
- IRS filings on file for fiscal years 2020–2024
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