Mason Foundation Inc
Invitation OnlyChicago, Illinois · EIN 36-3101263 · Private foundation
Grants paid (2025)$502K
Organizations funded23
Typical grant$16,000
Total assets$11M
Half of its grants to organizations were between $7,000 and $32,000.
From the return
How to apply
On its return for tax year 2025 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
43% of grants went outside Illinois.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Art Institute of Chicago and School of the Art Institute of Chicago | Chicago, IL | Annual fund; school annual fund, department of the applied arts of europe-old master acquisition endowment; museum general operating… | $81,000 |
| Marine Corps Scholarship Foundation | Alexandria, VA | Mason phelps memorial scholarship | $48,000 |
| Hoover Institution at Stanford University | Stanford, CA | General charitable purposes | $39,000 |
| Lake Forest College | Lake Forest, IL | Forester fund | $39,000 |
| Christian Science Society Libertyville Il | Libertyville, IL | General charitable purposes | $32,000 |
| Vassar College | Poughkeepsie, NY | The vassar fund | $32,000 |
| Ravinia Festival and Ravinia Steans Music Institute | Highland Park, IL | Annual fund; steans institute | $31,000 |
| Chicago Symphony Orchestra | Chicago, IL | Annual fund | $23,000 |
| International Crane Foundation | Baraboo, WI | General charitable purposes | $23,000 |
| John G Shedd Aquarium | Chicago, IL | Annual fund | $23,000 |
| Lyric Opera of Chicago | Chicago, IL | Annual campaign | $23,000 |
| First Church of Christ Scientist - Boston | Boston, MA | General charitable purposes | $16,000 |
| Lake Forest-Lake Bluff History Center | Lake Forest, IL | General charitable purposes | $16,000 |
| Outward Bound USA | Boulder, CO | General charitable purposes | $13,000 |
| Golden Apple Foundation | Chicago, IL | General charitable purposes | $12,000 |
| Deer Path Art League | Lake Forest, IL | Annual fund | $7,000 |
| Gorton Community Center | Lake Forest, IL | Annual fund | $7,000 |
| Marine Mammal Center | Sausalito, CA | General charitable purposes | $7,000 |
| Miss Halls School | Pittsfield, MA | Annual fund | $7,000 |
| Northwestern Memorial Foundation | Chicago, IL | General charitable purposes | $7,000 |
| World Monuments Fund | New York, NY | General charitable purposes | $7,000 |
| Wttw | Chicago, IL | General charitable purposes | $6,000 |
| World Wildlife Fund - Development Department | Washington, DC | Partners in conservation | $3,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $502,000 | 23 |
| 2024 | $381,000 | 22 |
| 2023 | $394,000 | 23 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 26, 2026 - IRS e-file batch, object ID 202621469349100222
- IRS Tax Exempt Organization Search for EIN 36-3101263
- Profile updated Nov 6, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.