Private Foundation

LOEWENBERG FOUNDATION

LOEWENBERG FOUNDATION is a private foundation categorized as Private Foundation based in NEW YORK, NY. Its most recent IRS filing (2025) reports revenue of $5.0M, expenses of $3.3M, total assets of $74.7M. Imperigo tracks 24 reported grants from this foundation totaling approximately $10.5M.

EIN: 136075586 NEW YORK, NY Latest filing: 2025

Total Revenue$5.0M

Total Expenses$3.3M

Total Assets$74.7M

Grants Given24

Grant Total$10.5M

Filing Years2021–2025

Sample Grants Given

NATIONAL PHILANTHROPIC TRUST

JENKINTOWN, PA · 2024

TO FURTHER DONER'S EXEMPT PURPOSE

$2,400,000

CHABAD AT HARVARD

CAMBRIDGE, MA · 2024

TO FURTHER DONER'S EXEMPT PURPOSE

$600,000

NATIONAL PHILANTHROPIC TRUST

JENKINTOWN, PA · 2023

TO FURTHER DONER'S EXEMPT PURPOSE

$1,400,000

CHABAD AT HARVARD

CAMBRIDGE, MA · 2023

TO FURTHER DONER'S EXEMPT PURPOSE

$175,000

NATIONAL PHILANTHROPIC TRUST

JENKINTOWN, PA · 2022

TO FURTHER DONER'S EXEMPT PURPOSE

$1,010,000

Showing up to 5 of 24 total records — full history available with membership.

Officers & Directors

TREASURER/DIRECTOR Diana Loewenberg

PRESIDENT/SECR/DIR Elizabeth Loewenberg

DIRECTOR Jonathan Tannenhauser

Officer compensation and complete director data available with membership.

Top Grant Purposes

General Support

$10,458,803 24 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$5.0M	$3.3M	$74.7M
2024	$29.0M	$1.8M	$73.0M
2023	$30.5M	$1.2M	$45.9M
2022	$741K	$1.2M	$16.6M
2021	$1.3M	$1.1M	$17.0M

Between 2021 and 2025, reported annual revenue grew from $1.3M to $5.0M (+292%), with total assets most recently reported at $74.7M.

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

Grant Geography

Grants from this foundation were reported to recipients in MA, NY, PA.

MANYPA

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

See the full picture for LOEWENBERG FOUNDATION

Complete financials, all 24 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 880,000+ organizations.

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