Private Foundation

MACLEAN FOUNDATION

MACLEAN FOUNDATION is a private foundation categorized as Private Foundation based in MUNDELEIN, IL. Its most recent IRS filing (2025) reports revenue of $831K, expenses of $4.1M, total assets of $16.2M. Imperigo tracks 42 reported grants from this foundation totaling approximately $25.6M.

EIN: 364055957 MUNDELEIN, IL Private Grantmaking Foundations NTEE: T20 Latest filing: 2025

Total Revenue$831K

Total Expenses$4.1M

Total Assets$16.2M

Grants Given42

Grant Total$25.6M

Filing Years2021–2025

Sample Grants Given

University of Chicago

Chicago, IL · 2025

Donation to Philanthropy, Voluntarism and Grantmaking

$1,748,263

Dartmouth College

Hanover, NH · 2025

Thayer Expansion Commitment

$1,500,000

Museum of Science and Industry

Chicago, IL · 2025

Build public understanding of science, show how science impacts our society and inspire everyone to think critically about the world around us.

$750,000

Ruffed Grouse Society

Pittsburgh, PA · 2025

Improve wildlife habitat and forest health for ruffed grouse, American woodcock and ALL forest wildlife.

$50,000

University of Chicago

Chicago, IL · 2024

Donation to Philanthropy, Voluntarism and Grantmaking

$1,748,263

Showing up to 5 of 42 total records — full history available with membership.

Officers & Directors

President Adrian Jay

Vice President Brooke Maclean

Secretary Gillian Growdon

ASST. SECY Toby Bonaguro

Officer compensation and complete director data available with membership.

Top Grant Purposes

General Support

$8,006,269 9 grants

Research & Policy

$2,250,000 3 grants

Education

$1,915,000 8 grants

Health & Medicine

$1,036,000 10 grants

Environment & Conservation

$531,000 3 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$831K	$4.1M	$16.2M
2024	$1.0M	$4.1M	$19.3M
2023	$1.0M	$6.3M	$22.4M
2022	$38.0M	$10.6M	$27.5M
2021	$975	$25K	$20K

Between 2021 and 2025, reported annual revenue grew from $975 to $831K (+85090%), with total assets most recently reported at $16.2M.

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

Grant Geography

Grants from this foundation were reported to recipients in CT, DC, FL, IL, MA, NH, and 4 other states.

CTDCFLILMANHNYPATNUT

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

See the full picture for MACLEAN FOUNDATION

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