Private Foundation

THE MILL SPRING FOUNDATION 084206-000

THE MILL SPRING FOUNDATION 084206-000 is a private foundation categorized as Private Foundation based in WILMINGTON, DE. Its most recent IRS filing (2025) reports revenue of $820K, expenses of $684K, total assets of $2.3M. Imperigo tracks 96 reported grants from this foundation totaling approximately $3.1M.

EIN: 236230874 WILMINGTON, DE Latest filing: 2025

Total Revenue$820K

Total Expenses$684K

Total Assets$2.3M

Grants Given96

Grant Total$3.1M

Filing Years2021–2025

Sample Grants Given

THE WORLD AFFAIRS COUNCIL OF

PHILADELPHIA, PA · 2024

GENERAL SUPPORT

$200,000

FRANKLIN INSTITUTE

PHILADELPHIA, PA · 2024

GENERAL SUPPORT

$100,000

SCIENCE HISTORY INSTITUTE

PHILADELPHIA, PA · 2024

GENERAL SUPPORT

$100,000

WOODMERE ART MUSEUM

PHILADELPHIA, PA · 2024

GENERAL SUPPORT

$50,000

WHITEMARSH FOUNDATION

LAFAYETTE HILL, PA · 2024

GENERAL SUPPORT

$25,000

Showing up to 5 of 96 total records — full history available with membership.

Officers & Directors

TRUSTEE Leslie Macdonald

TRUSTEE William F Macdonald Jr

Officer compensation and complete director data available with membership.

Top Grant Purposes

GENERAL

$2,120,500 48 grants

GENERAL SUPPORT

$653,000 22 grants

GENERAL OPERATING FUND

$229,000 20 grants

GENERAL PURPOSE

$110,000 2 grants

General Operating Fund

$20,000 3 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$820K	$684K	$2.3M
2024	$905K	$882K	$2.2M
2023	$590K	$1.1M	$2.2M
2022	$201K	$287K	$2.7M
2021	$141K	$280K	$2.8M

Between 2021 and 2025, reported annual revenue grew from $141K to $820K (+480%), with total assets most recently reported at $2.3M.

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

Grant Geography

Grants from this foundation were reported to recipients in DE, PA, VA.

DEPAVA

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

See the full picture for THE MILL SPRING FOUNDATION 084206-000

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