SUNDHEIM FAMILY FOUNDATION
Cite this
Plain text SUNDHEIM FAMILY FOUNDATION. furp.org, nonprofit organization profile, tax years 2019–2025. https://furp.org/org/sundheim-family-foundation-831563495. Retrieved 2026-10-28.
APA furp.org. (n.d.). SUNDHEIM FAMILY FOUNDATION [Nonprofit organization profile; tax years 2019–2025]. Retrieved October 28, 2026, from https://furp.org/org/sundheim-family-foundation-831563495
MLA “SUNDHEIM FAMILY FOUNDATION.” furp.org, tax years 2019–2025, https://furp.org/org/sundheim-family-foundation-831563495. Accessed 28 Oct. 2026.
Retrieved 2026-10-28; covers tax years 2019–2025. Data: furp.org, CC BY 4.0.
2025 · Form 990PF · revenue $19.1M · expenses $7.9M · assets $111.9M
- EIN
- 83-1563495
- Address
- C/O SUNNY CAP MGMT 9 W 57TH ST, NEW YORK, NY 10019-0000
- NTEE code
- T20
- Exempt type
- 501(c)(3): charitable, religious, educational, scientific or literary (corporation)
- Ruling date
- May 2020 (when the IRS recognized its exemption)
- IRS status
- Exempt (unconditional) (IRS Business Master File) IRS data ↗
- Tax-deductible donations
- Yes: listed in IRS Publication 78 (private foundation) Pub 78 ↗
- Foundation status
- Private non-operating foundation
- Cross-check
- ProPublica Nonprofit Explorer
Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).
People paid by the organization
None of the 3 people listed on these returns reported compensation from the organization. They are listed below.
Officers and directors, no compensation reported
3 people listed on the returns with $0 (or no amount) in every compensation column: current people first. Hours are as filed on the latest return each person appears on.
| Name | Latest title | Years | Hrs/wk (latest) | Compensation | Organizations |
|---|---|---|---|---|---|
| Daniel Sundheim | PRESIDENT | 2019-2025 | 1 | $0 reported | 1 |
| Brett Sundheim | SECRETARY | 2019-2025 | 1 | $0 reported | 1 |
| Mark Halpern | TREASURER | 2019-2025 | 1 | $0 reported | 1 |
People by year
2025 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| DANIEL SUNDHEIM | PRESIDENT | 1 | $0 | - | $0 | $0 | 1 |
| BRETT SUNDHEIM | SECRETARY | 1 | $0 | - | $0 | $0 | 1 |
| MARK HALPERN | TREASURER | 1 | $0 | - | $0 | $0 | 1 |
2024 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| DANIEL SUNDHEIM | PRESIDENT | 1 | $0 | - | $0 | $0 | 1 |
| BRETT SUNDHEIM | SECRETARY | 1 | $0 | - | $0 | $0 | 1 |
| MARK HALPERN | TREASURER | 1 | $0 | - | $0 | $0 | 1 |
2023 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| DANIEL SUNDHEIM | PRESIDENT | 1 | $0 | - | $0 | $0 | 1 |
| BRETT SUNDHEIM | SECRETARY | 1 | $0 | - | $0 | $0 | 1 |
| MARK HALPERN | TREASURER | 1 | $0 | - | $0 | $0 | 1 |
2022 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| DANIEL SUNDHEIM | PRESIDENT | 1 | $0 | - | $0 | $0 | 1 |
| BRETT SUNDHEIM | SECRETARY | 1 | $0 | - | $0 | $0 | 1 |
| MARK HALPERN | TREASURER | 1 | $0 | - | $0 | $0 | 1 |
2021 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| DANIEL SUNDHEIM | PRESIDENT | 1 | $0 | - | $0 | $0 | 1 |
| BRETT SUNDHEIM | SECRETARY | 1 | $0 | - | $0 | $0 | 1 |
| MARK HALPERN | TREASURER | 1 | $0 | - | $0 | $0 | 1 |
2020 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| DANIEL SUNDHEIM | PRESIDENT | 0 | $0 | - | $0 | $0 | 1 |
| BRETT SUNDHEIM | SECRETARY | 0 | $0 | - | $0 | $0 | 1 |
| MARK HALPERN | TREASURER | 0 | $0 | - | $0 | $0 | 1 |
2019 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| DANIEL SUNDHEIM | PRESIDENT | 0 | $0 | - | $0 | $0 | 1 |
| BRETT SUNDHEIM | SECRETARY | 0 | $0 | - | $0 | $0 | 1 |
| MARK HALPERN | TREASURER | 0 | $0 | - | $0 | $0 | 1 |
Highest-paid independent contractors
2025 · 1 contractor · $240K
| Name | Location | Service | Paid |
|---|---|---|---|
| Sunny Capital Management LLC | NEW YORK, NY | INVEST MANAGEMENT | $240,000 |
2024 · 1 contractor · $260K
| Name | Location | Service | Paid |
|---|---|---|---|
| Sunny Capital Management LLC | NEW YORK, NY | INVEST MANAGEMENT | $260,000 |
2023 · 1 contractor · $220K
| Name | Location | Service | Paid |
|---|---|---|---|
| Sunny Capital Management LLC | NEW YORK, NY | INVEST MANAGEMENT | $220,000 |
2022 · 1 contractor · $240K
| Name | Location | Service | Paid |
|---|---|---|---|
| Sunny Capital Management LLC | NEW YORK, NY | INVEST MANAGEMENT | $240,000 |
Who the money went to
Grants this organization reported paying: Schedule I Part II of the Form 990, or the grants-paid list on the 990-PF. Open a year for every recipient. Recipients link to their own page when the grant names an EIN we have (990-PF grants list no EIN, so those link only on an exact, unique name and state). Grants to individuals are counted; their names are not shown.
2025 · 1 grant to organizations · $7.3M
2024 · 1 grant to organizations · $5.1M
2023 · 2 grants to organizations · $9.0M
2022 · 1 grant to organizations · $5.9M
2021 · 1 grant to organizations · $3.2M
2020 · 1 grant to organizations · $4.0M
2019 · 1 grant to organizations · $3.5M
Negative amounts are returned or refunded grants; they are listed last and left out of the totals of grants paid.
Who gave
Contributors listed on Schedule B of the Form 990-PF: name, city and state as filed (street addresses are not shown), with total and noncash contributions for the year. A link to an organization's page is tagged Fuzzy with its name-similarity score (0 to 1) when it rests on name and state; Schedule B lists no EIN, so no link here is an exact identifier match.
2025 · 4 contributors · $15.4M
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 2 | DANIEL SUNDHEIM 2020 CLAT | Person | NEW YORK, NY | $6,815,512 | - | Form 990PF Sch. B, 2025 · filing |
| 3 | DANIEL SUNDHEIM | Person | NEW YORK, NY | $4,750,000 | - | Form 990PF Sch. B, 2025 · filing |
| 1 | Sunny Ventures LLC | Person | NEW YORK, NY | $3,439,493 | $3,439,493 | Form 990PF Sch. B, 2025 · filing |
| 4 | DANIEL SUNDHEIM | Person | NEW YORK, NY | $393,267 | $393,267 | Form 990PF Sch. B, 2025 · filing |
2024 · 2 contributors · $25.8M
2023 · 3 contributors · $10.7M
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | DANIEL SUNDHEIM 2020 CLAT | Person | NEW YORK, NY | $4,732,992 | - | Form 990PF Sch. B, 2023 · filing |
| 2 | DANIEL SUNDHEIM | Person | NEW YORK, NY | $4,075,000 | - | Form 990PF Sch. B, 2023 · filing |
| 3 | Sunny Ventures LLC | Person | NEW YORK, NY | $1,913,525 | $1,913,525 | Form 990PF Sch. B, 2023 · filing |
2022 · 3 contributors · $10.0M
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 3 | Sunny Ventures LLC | Person | NEW YORK, NY | $4,634,805 | $1,330,132 | Form 990PF Sch. B, 2022 · filing |
| 1 | DANIEL SUNDHEIM 2020 CLAT | Person | NEW YORK, NY | $3,944,160 | - | Form 990PF Sch. B, 2022 · filing |
| 2 | DANIEL SUNDHEIM | Person | NEW YORK, NY | $1,412,829 | $4,708,959 | Form 990PF Sch. B, 2022 · filing |
2021 · 2 contributors · $40.2M
Contributors listed here are as reported on the filing. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.
Finances
Newest first. Each filing: its name on one row, its figures on the row beneath. Greyed filings are superseded by a later return for the same period and are left out everywhere else on this page.
| Revenue | Expenses | Assets | Net assets | Contributions | Program revenue | Officer pay | Employees | Volunteers |
|---|---|---|---|---|---|---|---|---|
| 2025 · Form 990PF | ||||||||
| $19,119,661 | $7,902,428 | $111,915,423 | $111,915,423 | $15,398,272 | - | $0 | - | - |
| 2024 · Form 990PF | ||||||||
| $45,849,834 | $5,351,269 | $104,214,272 | $104,214,272 | $25,812,466 | - | $0 | - | - |
| 2023 · Form 990PF | ||||||||
| $11,688,909 | $9,228,048 | $83,123,072 | $83,123,072 | $10,721,517 | - | $0 | - | - |
| 2022 · Form 990PF | ||||||||
| $13,940,126 | $6,671,509 | $80,664,197 | $80,664,197 | $9,991,794 | - | $0 | - | - |
| 2021 · Form 990PF | ||||||||
| $75,541,519 | $3,472,825 | $78,692,229 | $78,692,229 | $40,164,878 | - | $0 | - | - |
| 2020 · Form 990PF | ||||||||
| $9,263 | $4,325,798 | $41,644,659 | $41,644,659 | $0 | - | $0 | - | - |
| 2019 · Form 990PF | ||||||||
| $57,573 | $3,556,607 | $45,959,932 | $45,959,932 | $0 | - | $0 | - | - |
Funders of this organization
Not reported: no grants to this organization appear in the filings we have (tax years 2010 to 2025).
Similar organizations
Ranked without any AI: same NTEE code first, then the same NTEE group; then revenue within 2x, 5x or 10x; then the same state; then similar name and mission text. Same state only · More (100)
| Organization | State | NTEE | Latest revenue | Latest expenses | Top-paid title | Top pay | Why similar |
|---|---|---|---|---|---|---|---|
| RHODES FAMILY FOUNDATION | NY | T20 | $15,019,577 | $243,186 | Director/President | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| BURNHAM FAMILY FOUNDATION | NY | T20 | $25,147,421 | $2,864,198 | EXECUTIVE DIRECTOR | $179,494 | Same NTEE code T20, revenue within 2x, same state, similar name |
| STEVE TISCH FAMILY FOUNDATION | NY | T20 | $12,094,321 | $13,270,817 | TRUSTEE, PART TIME | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| FIVE HILLS FAMILY FOUNDATION | NY | T20 | $17,561,297 | $2,558 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| TREEHOUSE FAMILY FOUNDATION | NY | T20 | $24,663,788 | $20,907,360 | DIRECTOR/PRESIDENT/TREASURE | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| BERGER FAMILY FOUNDATION INC | NY | T20 | $12,231,647 | $1,596,908 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| HUTCHINS FAMILY FOUNDATION INC | NY | T20 | $20,951,643 | $10,037,019 | CHAIRMAN/TREASURER | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| MOTULSKY-NACHT FAMILY FOUNDATION | NY | T20 | $16,240,009 | $2,333,552 | TRUSTEE | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| THE HERRNSTEIN FAMILY FOUNDATION | NY | T20 | $15,596,516 | $6,122,622 | PRESIDENT & SECRETARY | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| JONATHAN M TISCH FAMILY FOUNDATION | NY | T20 | $12,517,697 | $23,732,598 | TRUSTEE, PART TIME | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| SCOTT FOUNDATION | NY | T20 | $19,056,395 | $1,040,255 | Trustee - less than 1 hr | $0 | Same NTEE code T20, revenue within 2x, same state, similar name |
| HARTMAN FAM FOUNDATION | NY | T20 | $30,020,038 | $8,863,659 | PRESIDENT/TRUSTEE | $0 | Same NTEE code T20, revenue within 2x, same state |
| IVM FOUNDATION | NY | T20 | $26,211,756 | $281,374 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
| LUM FOUNDATION | NY | T20 | $13,300,783 | $2,174,922 | PRESIDENT/DIRECTOR | $0 | Same NTEE code T20, revenue within 2x, same state |
| 2A FOUNDATION INC | NY | T20 | $23,785,076 | $5,952,675 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
| ARONOW FOUNDATION | NY | T20 | $14,169,899 | $6,094,157 | DIRECTOR ; PRESIDENT & TREASURER | $0 | Same NTEE code T20, revenue within 2x, same state |
| MULAGO FOUNDATION | NY | T20 | $34,119,063 | $31,773,624 | CEO | $500,000 | Same NTEE code T20, revenue within 2x, same state |
| JEFFREY H AND SHARI L ARONSONFAMILY FOUNDATION | NY | T20 | $21,529,170 | $11,466,680 | TRUSTEE | $0 | Same NTEE code T20, revenue within 2x, same state |
| RACHAEL RAY FOUNDATION | NY | T20 | $13,895,124 | $15,030,351 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
| KAPNICK FOUNDATION TR | NY | T20 | $37,424,176 | $8,600,683 | TRUSTEE | $0 | Same NTEE code T20, revenue within 2x, same state |
| ENDEAVOR FOUNDATION INC | NY | T20 | $26,840,443 | $19,587,036 | PRESIDENT & TREASURER | $383,216 | Same NTEE code T20, revenue within 2x, same state |
| NEW TAMARIND FOUNDATION | NY | T20 | $11,252,421 | $9,189,546 | SECRETARY, DIRECTOR | $355,870 | Same NTEE code T20, revenue within 2x, same state |
| CHANG K PARK FOUNDATION | NY | T20 | $10,845,665 | $2,218,581 | CEO | $0 | Same NTEE code T20, revenue within 2x, same state |
| SUSAN S & KENNETH WALLACH FOUNDATION | NY | T20 | $15,486,824 | $5,504,408 | TRUSTEE | $0 | Same NTEE code T20, revenue within 2x, same state |
| EGL CHARITABLE FOUNDATION | NY | T20 | $14,031,425 | $20,662,114 | Executive Dir. | $320,521 | Same NTEE code T20, revenue within 2x, same state |
Who funds organizations like this
Grantors that funded the 100 most similar organizations. Ranked by total given to them. Foundations (990-PF) and donor-advised fund sponsors only. Same matching as Funders above (by EIN, or by name for foundations).
The full list · all similar organizations
Where the money went
Every expense line on each return, biggest first: Form 990 Part IX (with its program, management and fundraising columns), 990-EZ Part I, or 990-PF Part I. Event marks lines the organization itself describes as events. “Events” in each summary adds those lines, conferences and meetings, and the direct costs of fundraising events. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.
2025 · Form 990PF · $7,902,428 spent · pay $0 · grants $7,348,855 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $7,348,855 | 93.0% | |
| Taxes | $280,000 | 3.5% | |
| Fees: other professional | $271,937 | 3.4% | |
| Other expenses | $1,532 | 0.0% | |
| Fees: legal | $104 | 0.0% | |
| Total | $7,902,428 | 100% |
2024 · Form 990PF · $5,351,269 spent · pay $0 · grants $5,078,171 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $5,078,171 | 94.9% | |
| Fees: other professional | $260,000 | 4.9% | |
| Taxes | $10,977 | 0.2% | |
| Other expenses | $1,775 | 0.0% | |
| Fees: legal | $346 | 0.0% | |
| Total | $5,351,269 | 100% |
2023 · Form 990PF · $9,228,048 spent · pay $0 · grants $8,962,292 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $8,962,292 | 97.1% | |
| Fees: other professional | $220,184 | 2.4% | |
| Taxes | $42,595 | 0.5% | |
| Other expenses | $1,930 | 0.0% | |
| Fees: legal | $1,047 | 0.0% | |
| Total | $9,228,048 | 100% |
2022 · Form 990PF · $6,671,509 spent · pay $0 · grants $5,910,225 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $5,910,225 | 88.6% | |
| Taxes | $500,000 | 7.5% | |
| Fees: other professional | $240,000 | 3.6% | |
| Fees: accounting | $20,000 | 0.3% | |
| Fees: legal | $1,209 | 0.0% | |
| Other expenses | $75 | 0.0% | |
| Total | $6,671,509 | 100% |
2021 · Form 990PF · $3,472,825 spent · pay $0 · grants $3,231,358 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $3,231,358 | 93.0% | |
| Fees: other professional | $220,000 | 6.3% | |
| Fees: accounting | $12,500 | 0.4% | |
| Fees: legal | $7,356 | 0.2% | |
| Other expenses | $1,611 | 0.0% | |
| Total | $3,472,825 | 100% |
2020 · Form 990PF · $4,325,798 spent · pay $0 · grants $4,038,730 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $4,038,730 | 93.4% | |
| Other expenses | $274,068 | 6.3% | |
| Taxes | $13,000 | 0.3% | |
| Total | $4,325,798 | 100% |
2019 · Form 990PF · $3,556,607 spent · pay $0 · grants $3,537,500 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $3,537,500 | 99.5% | |
| Other expenses | $16,107 | 0.5% | |
| Taxes | $3,000 | 0.1% | |
| Total | $3,556,607 | 100% |
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