Martin & Toni Sosnoff Foundation

Private foundation · Grantmaker Palm Beach, FL EIN: 22-2231640
Arts and culturePerforming artsDanceBalletEducation

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.

Key facts about Martin & Toni Sosnoff Foundation

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.

EIN
22-2231640
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$2,215,650
Grants made (2025)
18
Average grant
$123,092
Median grant
$27,500
New grantees (estimate)
17% first-time grantees (3 of 18, 2025; small sample)
Total assets
$8,701,897
Primary geography
New York (85% of itemized 2025 grant dollars)
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. Full details ↓

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$8.7M

+72.9% YoY

Annual Giving

$2.2M

-0.6% YoY

Grant Count

18

-18.2% YoY

Avg Grant Size

$123K

+21.5% YoY

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.

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.

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.

How to Apply

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.

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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

7states

Share of 2025 grant dollars across all 18 itemized grants.

Cities

New YorkWest Palm BeachAnnandaleonhudsonHempsteadRhinebeckWashingtonBoca RatonBrooklynMiami BeachKennett SquareLake LuzernePalm BeachLincolnGarrisonLos AngelesMadisonPoughkeepsieRiviera Beach

Giving Over Time

Total grant dollars and number of grants per year

$0$2M$4M$6M$8M28 grants2020 20 grants2021 22 grants2022 22 grants2023 22 grants2024 18 grants2025

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.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Mount Sinai Health System: $575KMount Sinai Health System$575KNDH Foundation: $400KNDH Foundation$400KNew York Philharmonic: $334KNew York Philharmonic$334KBard College: $250KBard College$250KIcahn School of Medicine at Mount Sinai: $250KIcahn School of Medicine atMount Sinai$250KPalm Beach Opera: $170KPalm Beach Opera$170KChamber Music Society of Palm Beach: $40KChamber Music Society of PalmBeach$40KNorton Museum of Art: $38KNorton Museum of Art$38KPalm Beach Dramaworks: $30KPalm Beach Dramaworks$30KASPCA: $25KASPCA$25K

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

65<$50K8$50–100K10$100–250K15$250–500K5$500K–1M1$1–5M$5M+

The most common grant size was under $50K: 65 grants of 104 (63%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Mount Sinai Health System New York, NYCharitable$575,000
NDH Foundation Rhinebeck, NYCharitable$400,000
New York Philharmonic New York, NYCharitable$334,000
Bard College Annandaleonhudson, NYCharitable$250,000
Icahn School of Medicine at Mount Sinai New York, NYCharitable$250,000
Palm Beach Opera West Palm Beach, FLCharitable$170,000
Chamber Music Society of Palm Beach West Palm Beach, FLCharitable$40,000
Norton Museum of Art West Palm Beach, FLCharitable$38,000
Palm Beach Dramaworks West Palm Beach, FLCharitable$30,000
ASPCA New York, NYCharitable$25,000

Financial History

Multi-year comparison from IRS filings

Filing year Assets Revenue Expenses Grants
2025 $8,701,897 $6,095,464 $2,298,717 $2,215,650
2024 $5,032,316 $492,949 $2,268,970 $2,228,428
2023 $6,864,234 $2,178,920 $6,631,972 $6,500,000
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$5M$10M$15M2020 2021 2022 2023 2024 2025
Metric202520242023
Total Assets$8,701,897$5,032,316$6,864,234
Revenue$6,095,464$492,949$2,178,920
Expenses$2,298,717$2,268,970$6,631,972
Qualifying Distributions$2,215,650$2,228,428$6,536,129
Net Investment Income$564,460$491,519$494,479
Distributable Amount$100,440$189,704$404,840

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2020 (received by the IRS June 12, 2021)
  2. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 12, 2022)
  3. Updated Form 990-PF for fiscal year 2022 (received by the IRS April 18, 2023)
  4. Updated Form 990-PF for fiscal year 2023 (received by the IRS April 9, 2024)
  5. Updated Form 990-PF for fiscal year 2024 (received by the IRS April 12, 2025)
  6. Updated Form 990-PF for fiscal year 2025 (received by the IRS April 1, 2026)
  7. IRS filings on file for fiscal years 2020–2025

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.

Contact

Mailing address: 260 Via Bellaria, Palm Beach, FL 33480
Phone: (561) 855-6259

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.

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