Maclean Foundation
Preselected recipients only
Maclean Foundation is a private foundation in Mundelein, Illinois. In tax year 2025 it gave $4.0 million in 4 grants; the typical grant was $1.1 million and the largest $1.7 million. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$4.0 million
- Number of grants4
- Typical grant$1.1 million
- Largest grant$1.7 million
- Assets$16.2 million
- New grantees0%
Giving in 2025 was the same as $4.0 million the year before.
0% of its 2025 grantees had not received a grant from it the year before, so most of its money goes to organizations it already funds.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $6.3 million | 7 | $22.4 million |
| 2024 | $4.0 million | 4 | $19.3 million |
| 2025 | $4.0 million | 4 | $16.2 million |
How to apply
Maclean Foundation says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
What Maclean Foundation funds
Where it gives
Its grants went to recipients in 3 states, the most to Illinois.
| State | Grants | Amount |
|---|---|---|
| Illinois | 2 | $2.5 million |
| New Hampshire | 1 | $1.5 million |
| Pennsylvania | 1 | $50,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| University of Chicago | Donation to Philanthropy, Voluntarism and Grantmaking | $1.7 million |
| Dartmouth College | Thayer Expansion Commitment | $1.5 million |
| Museum of Science and Industry | 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 | Improve wildlife habitat and forest health for ruffed grouse, American woodcock and ALL forest wildlife. | $50,000 |
Officers and trustees
- Adrian Jay
- Brooke MacLean
- Gillian Growdon
- Toby Bonaguro
Questions people ask
Does Maclean Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does Maclean Foundation give?
$4.0 million in tax year 2025, across 4 grants, with a typical grant of $1.1 million.
Who runs Maclean Foundation?
Its 2025 filing lists Adrian Jay (President), Brooke MacLean (Vice President), Gillian Growdon (Secretary) and Toby Bonaguro (Asst. Secy).
What does Maclean Foundation fund?
Based on its grants, mainly education.