The Sundheim Family Foundation
The Sundheim Family Foundation is a private foundation, based in New York, NY. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $104.2M in total assets. In 2024, it awarded 1 grant totaling $5.1M. Net investment income was $19.8M.
The Sundheim Family Foundation at a glance
In short: The Sundheim Family Foundation gave $5.1M across 1 grant in 2024 (avg $5.1M), mostly in New York. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $5,078,171
- -43.3% vs 2023
- Grants made (2024)
- 1
- -50.0% vs 2023
- Average grant
- $5,078,171
- +13.3% vs 2023
- Median grant
- $5,078,171
- Total assets
- $104,214,272
- +25.4% vs 2023
- Primary geography
- New York (100% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated September 2026.
Who The Sundheim Family Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2024
The largest 2024 recipient was See Attachment ($5.1M).
Grant Size Distribution
6 grants across all recorded years
The most common grant size was in the $1–5M range: 3 grants of 6 (50%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2024 grant dollars on its one itemized grant.
States
Cities
How The Sundheim Family Foundation gives
- Giving grew 57% from 2021 to 2024. Method
- In 2024 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 2024, annual grant giving ranged from $3.2M (2021) to $9.0M (2023). In 2024 it made 1 grant totaling $5.1M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| See Attachment New York, NY | General Purpose | $5,078,171 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $104,214,272 | $45,849,834 | $5,351,269 | $5,078,171 | 1 | $5,079,946 | $19,777,022 | $7,165,500 |
| 2023 | $83,123,072 | $11,688,909 | $9,228,048 | $8,962,292 | 2 | $8,964,222 | $746,161 | $6,875,185 |
| 2022 | $80,664,197 | $13,940,126 | $6,671,509 | $5,910,225 | 1 | $5,920,300 | $3,697,123 | $7,714,733 |
| 2021 | $78,692,229 | $75,541,519 | $3,472,825 | $3,231,358 | 1 | $3,239,108 | $35,138,624 | $6,659,699 |
| 2020 | $41,644,659 | $9,263 | $4,325,798 | $4,038,730 | 1 | — | — | $3,537,945 |
Under IRS private-foundation payout rules, The Sundheim Family Foundation reported a distributable amount of $7.2M for 2024 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The Sundheim Family Foundation is led by Daniel Sundheim, President on every filing since 2020; none of the 3 officers listed in 2024 report compensation.
Officers on the 2024 filing
Daniel Sundheim
President
On filings since 2020
1 hr/week
No compensation reported
Brett Sundheim
Secretary
On filings since 2020
1 hr/week
No compensation reported
Mark Halpern
Treasurer
On filings since 2020
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "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 The Sundheim Family Foundation
How much does The Sundheim Family Foundation give each year?
The Sundheim Family Foundation gave $5.1M across 1 grant in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $9.0M across 2 grants.
How large is The Sundheim Family Foundation?
The Sundheim Family Foundation reported $104.2M in total assets on its 2024 IRS Form 990-PF. It paid out $5.1M in qualifying distributions that year, against a required minimum of $7.2M (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 The Sundheim Family Foundation operate?
The Sundheim Family Foundation has awarded grants in New York.
What is The Sundheim Family Foundation's EIN?
The Sundheim Family Foundation's EIN (Employer Identification Number) is 83-1563495. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in The Sundheim Family Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). The Sundheim Family Foundation funder profile. GrantGraph. Retrieved October 4, 2026, from https://grantable.co/funders/the-sundheim-family-foundation-morg_b8c940da922745a18fc5077127e3bfaf
BibTeX
@misc{grantable_831563495_2026,
author = {{Grantable}},
title = {{The Sundheim Family Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/the-sundheim-family-foundation-morg_b8c940da922745a18fc5077127e3bfaf},
note = {Accessed 2026-10-04. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from The Sundheim Family Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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