Muller Foundation
Muller Foundation is a private foundation, based in Harrison, NY. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $124K in total assets. In 2025, it awarded 5 grants totaling $12K. Net investment income was $47.
Muller Foundation at a glance
In short: Muller Foundation gave $12K across 5 grants in 2025 (avg $2K), mostly in New York. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $11,930
- -28.7% vs 2024
- Grants made (2025)
- 5
- +25.0% vs 2024
- Average grant
- $2,386
- -43.0% vs 2024
- Median grant
- $500
- Total assets
- $124,237
- +1.1% vs 2024
- Primary geography
- New York (94% 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 Muller Foundation funds
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2025
The largest 2025 recipient was American Society for Technion-Israel Inst of Technology ($6K). Together the top 5 received $12K.
Grant Size Distribution
23 grants across all recorded years
The most common grant size was under $50K: 23 grants of 23 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 5 itemized grants.
States
Cities
How Muller Foundation gives
- Giving grew 58% from 2022 to 2025. Method
- In 2025 it paid out 196% of its IRS minimum distribution (the 5% rule). 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 $5K (2020) to $20K (2023). In 2025 it made 5 grants totaling $12K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| American Society for Technion-Israel Inst of Technology New York, NY | Operating funds | $6,000 |
| Israel Tennis & Educational Foundation New York, NY | Operating Funds | $5,000 |
| Yeshivat Ateret | Operating Funds | $500 |
| BC Lev Echad Englewood, NJ | Operating Funds | $250 |
| New York Pet Rescue Larchmont, NY | Operating Funds | $180 |
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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 | $124,237 | $5,448 | $15,556 | $11,930 | 5 | $11,930 | $47 | $6,091 |
| 2024 | $122,861 | $12,620 | $17,556 | $16,738 | 4 | $16,738 | $536 | — |
| 2023 | $118,923 | $5,113 | $21,302 | $19,630 | 6 | $19,896 | $152 | — |
| 2022 | $124,238 | $3,921 | $9,332 | $7,530 | 4 | $18,139 | $2,119 | $6,485 |
| 2021 | $146,604 | $2,830 | $8,938 | $6,180 | 4 | $6,180 | — | $7,170 |
| 2020 | $133,714 | $-7,786 | $6,579 | $5,150 | 2 | — | $7 | $6,585 |
Under IRS private-foundation payout rules, Muller Foundation reported a distributable amount of $6K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Muller Foundation is led by Efrat Muller Lefkowitz, President on every filing since 2020; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Efrat Muller Lefkowitz
President
On filings since 2020
No compensation reported
Avery Lefkowitz
Secretary
On filings since 2020
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 Muller Foundation
How much does Muller Foundation give each year?
Muller Foundation gave $12K across 5 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $17K across 4 grants.
What is Muller Foundation's typical grant size?
Muller Foundation's median grant in 2025 was $500, and its average grant was $2,386, across 5 grants on its 2025 IRS Form 990-PF.
Where does Muller Foundation give grants?
Muller Foundation gives mostly in New York: 94% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were New York, NY (2 grants).
Does Muller Foundation give general operating support?
Yes: 100% of Muller Foundation's 2025 grants with a stated purpose (5 of 5) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Muller Foundation's largest grantees?
Muller Foundation's largest 2025 grantees include American Society for Technion-Israel Inst of Technology ($6,000), Israel Tennis & Educational Foundation ($5,000) and Yeshivat Ateret ($500), according to its 2025 IRS Form 990-PF. Together they received 96% of its itemized 2025 grant dollars.
How large is Muller Foundation?
Muller Foundation reported $124K in total assets on its 2025 IRS Form 990-PF. It paid out $12K in qualifying distributions that year, against a required minimum of $6K (roughly 5% of its investment assets).
What is Muller Foundation's EIN?
Muller Foundation's EIN (Employer Identification Number) is 13-3736440. 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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