Martin & Toni Sosnoff Foundation
The Martin & Toni Sosnoff Foundation is a private foundation based in Palm Beach, Florida. Its 2025 filing lists grants to charitable organizations including health-care institutions, educational organizations, and arts and cultural groups in New York and Florida.
Martin & Toni Sosnoff Foundation at a glance
In short: Martin & Toni Sosnoff Foundation gave $2.2M across 18 grants in 2025 (avg $123K), mostly in New York. 17% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $2,215,650
- -0.6% vs 2024
- Grants made (2025)
- 18
- -18.2% vs 2024
- Average grant
- $123,092
- +21.5% vs 2024
- Median grant
- $27,500
- Total assets
- $8,701,897
- +72.9% vs 2024
- New grantees (estimate)
- 17% first-time grantees (3 of 18, 2025; small sample)
- Primary geography
- New York (85% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Martin & Toni Sosnoff Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 260 Via Bellaria, Palm Beach, FL 33480
Phone: (561) 855-6259
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Martin & Toni Sosnoff Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Mount Sinai Health System ($575K). Together the top 10 received $2.1M.
Grant Size Distribution
104 grants across all recorded years
The most common grant size was under $50K: 65 grants of 104 (63%).
Geographic Focus
Where this funder awards grants
In 2025, 85% of grant dollars went to recipients in New York and 15% to recipients in Florida. The listed grants also include recipients in both states, including organizations in New York City and the Palm Beach area.
Grant Distribution by State
Share of 2025 grant dollars across all 18 itemized grants.
Cities
Is Martin & Toni Sosnoff Foundation open to new grantees?
17%
first-time grantees, 2025
In 2025, 3 of 18 grantees (17%) were first-time recipients. With only 18 grantees, that is a small sample: one grantee more or less moves the share by about 6 points. First grants averaged $134K; repeat grants $121K. How we count
Medians: $2K first-time, $30K repeat.
- 78% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (+9%). Method
- In 2025 it paid out well above its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $2.0M (2022) to $6.5M (2023). In 2025 it made 18 grants totaling $2.2M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Mount Sinai Health System New York, NY | Charitable | $575,000 |
| NDH Foundation Rhinebeck, NY | Charitable | $400,000 |
| New York Philharmonic New York, NY | Charitable | $334,000 |
| Bard College Annandaleonhudson, NY | Charitable | $250,000 |
| Icahn School of Medicine at Mount Sinai New York, NY | Charitable | $250,000 |
| Palm Beach Opera West Palm Beach, FL | Charitable | $170,000 |
| Chamber Music Society of Palm Beach West Palm Beach, FL | Charitable | $40,000 |
| Norton Museum of Art West Palm Beach, FL | Charitable | $38,000 |
| Palm Beach Dramaworks West Palm Beach, FL | Charitable | $30,000 |
| ASPCA New York, NY | Charitable | $25,000 |
Ready to take the next step with Martin & Toni Sosnoff Foundation?
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 | $8,701,897 | $6,095,464 | $2,298,717 | $2,215,650 | 18 | $2,215,650 | $564,460 | $100,440 |
| 2024 | $5,032,316 | $492,949 | $2,268,970 | $2,228,428 | 22 | $2,228,428 | $491,519 | $189,704 |
| 2023 | $6,864,234 | $2,178,920 | $6,631,972 | $6,500,000 | 22 | $6,536,129 | $494,479 | $404,840 |
| 2022 | $10,829,342 | $603,047 | $2,119,768 | $2,039,800 | 22 | $2,052,253 | $535,533 | $571,132 |
| 2021 | $12,351,641 | $11,104,955 | $2,197,925 | $2,113,100 | 20 | — | $9,108,268 | $407,691 |
| 2020 | $3,392,320 | $724,227 | $2,485,880 | $2,438,100 | 28 | — | $681,697 | $216,985 |
Under IRS private-foundation payout rules, Martin & Toni Sosnoff Foundation reported a distributable amount of $100K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation’s filing states that it makes contributions only to preselected charitable organizations. Its 2025 grantees include health-care organizations, a college, a medical school, and performing-arts and cultural organizations. For example, Mount Sinai Health System describes its mission as providing patient care and advancing medicine through education, research, and outreach. Palm Beach Opera says it produces live opera, offers educational programs, and trains opera performers; the Norton Museum of Art says it connects visitors with art through programs and collections.
Grantmaking
In filing year 2025, the foundation reported 18 grants totaling $2,215,650. Grants ranged from $150 to $575,000, with a median of $27,500. The largest awards included $575,000 to Mount Sinai Health System, $400,000 to NDH Foundation, $334,000 to New York Philharmonic, and $250,000 each to Bard College and Icahn School of Medicine at Mount Sinai. It also gave $170,000 to Palm Beach Opera.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Martin Sosnoff and Toni Sosnoff as trustees.
Martin & Toni Sosnoff Foundation's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Martin Sosnoff
Trustee
On filings since 2020
1 hr/week
No compensation reported
Toni Sosnoff
Trustee
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 Martin & Toni Sosnoff Foundation
How much does Martin & Toni Sosnoff Foundation give each year?
Martin & Toni Sosnoff Foundation gave $2.2M across 18 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $2.2M across 22 grants.
What is Martin & Toni Sosnoff Foundation's typical grant size?
Martin & Toni Sosnoff Foundation's median grant in 2025 was $27,500, and its average grant was $123,092, across 18 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Martin & Toni Sosnoff Foundation that year got $134K on average.
Where does Martin & Toni Sosnoff Foundation give grants?
Martin & Toni Sosnoff Foundation gives mostly in New York: 85% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Florida (15%). The most frequent recipient cities were New York, NY (6 grants) and West Palm Beach, FL (5 grants).
Does Martin & Toni Sosnoff Foundation give general operating support?
Not in 2025: none of the 18 grants with a stated purpose on Martin & Toni Sosnoff Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Charitable" (18 grants).
Who are Martin & Toni Sosnoff Foundation's largest grantees?
Martin & Toni Sosnoff Foundation's largest 2025 grantees include Mount Sinai Health System ($575,000), NDH Foundation ($400,000) and New York Philharmonic ($334,000), according to its 2025 IRS Form 990-PF. Together they received 59% of its itemized 2025 grant dollars.
How large is Martin & Toni Sosnoff Foundation?
Martin & Toni Sosnoff Foundation reported $8.7M in total assets on its 2025 IRS Form 990-PF. It paid out $2.2M in qualifying distributions that year, against a required minimum of $100K (roughly 5% of its investment assets).
What does Martin & Toni Sosnoff Foundation fund?
The foundation’s filing states that it makes contributions only to preselected charitable organizations. Its 2025 grantees include health-care organizations, a college, a medical school, and performing-arts and cultural organizations. See mission & focus areas ↑
How do I apply for a grant from Martin & Toni Sosnoff Foundation?
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Martin & Toni Sosnoff Foundation's EIN?
Martin & Toni Sosnoff Foundation's EIN (Employer Identification Number) is 22-2231640. IRS Form 990 filing data is available on this page for 2020–2025.
Does Martin & Toni Sosnoff Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS June 12, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 12, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS April 18, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS April 9, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS April 12, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS April 1, 2026)
- IRS filings on file for fiscal years 2020–2025
Live grants for the work Martin & Toni Sosnoff Foundation funds
Education Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in Martin & Toni Sosnoff Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Martin & Toni Sosnoff Foundation funder profile. GrantGraph. Retrieved October 23, 2026, from https://grantable.co/funders/martin-and-toni-sosnoff-foundation-morg_554d1a7e1ee348bd9bb93948a3d08476
BibTeX
@misc{grantable_222231640_2026,
author = {{Grantable}},
title = {{Martin \& Toni Sosnoff Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/martin-and-toni-sosnoff-foundation-morg_554d1a7e1ee348bd9bb93948a3d08476},
note = {Accessed 2026-10-23. 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 Martin & Toni Sosnoff 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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