Private Foundation

MARTIN & TONI SOSNOFF FOUNDATION

MARTIN & TONI SOSNOFF FOUNDATION is a private foundation categorized as Private Foundation based in PALM BEACH, FL. Its most recent IRS filing (2025) reports revenue of $6.1M, expenses of $2.3M, total assets of $8.7M. Imperigo tracks 228 reported grants from this foundation totaling approximately $26.1M.

EIN: 222231640 PALM BEACH, FL Latest filing: 2025

Total Revenue$6.1M

Total Expenses$2.3M

Total Assets$8.7M

Grants Given228

Grant Total$26.1M

Filing Years2021–2025

Sample Grants Given

MOUNT SINAI HEALTH SYSTEM

NEW YORK, NY · 2024

CHARITABLE

$575,000

NDH FOUNDATION

RHINEBECK, NY · 2024

CHARITABLE

$400,000

NEW YORK PHILHARMONIC

NEW YORK, NY · 2024

CHARITABLE

$334,000

BARD COLLEGE

ANNANDALEONHUDSON, NY · 2024

CHARITABLE

$250,000

ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI

NEW YORK, NY · 2024

CHARITABLE

$250,000

Showing up to 5 of 228 total records — full history available with membership.

Officers & Directors

TRUSTEE Martin Sosnoff

TRUSTEE Toni Sosnoff

Officer compensation and complete director data available with membership.

Top Grant Purposes

CHARITABLE

$26,102,981 228 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$6.1M	$2.3M	$8.7M
2024	$493K	$2.3M	$5.0M
2023	$2.2M	$6.6M	$6.9M
2022	$603K	$2.1M	$10.8M
2021	$11.1M	$2.2M	$12.4M

Between 2021 and 2025, reported annual revenue declined from $11.1M to $6.1M (-45%), with total assets most recently reported at $8.7M.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in CA, DC, FL, MA, NC, NE, and 4 other states.

CADCFLMANCNENJNVNYPA

Full geographic grant map with state-by-state breakdown available with membership.

See the full picture for MARTIN & TONI SOSNOFF FOUNDATION

Complete financials, all 228 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

Full Financial History Complete Grant Activity Officer Compensation Year-over-Year Charts Geographic Grant Map Data Exports