Private foundation · EIN 20-1383344
The John P Calamos Foundation
Naperville, IL
The John P Calamos Foundation is a private foundation based in Naperville, IL. On its Form 990-PF for tax year 2025, it reported $1000K in grants and contributions paid across 13 grants, with $56.5M in assets (fair market value). It reports that it gives only to preselected charitable organizations and does not accept unsolicited requests for funds. Its largest grants went to National Hellenic Museum, Assumption Greek Orthodox Church and St Nicholas Greek Orthodox Church.
How to request funding
Gives only to preselected organizations. On its Form 990-PF, this foundation checked the box saying it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Relationships and invitations usually come first.
As reported on the foundation's Form 990-PF for tax year 2025. Requirements change; confirm with the foundation before applying.
Largest grants, tax year 2025
Historical data · not a prediction| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| National Hellenic Museum | Chicago, IL | To Support the Mission of the Charity | $650,000 |
| Assumption Greek Orthodox Church | Homer Glen, IL | To Support the Mission of the Charity | $100,000 |
| St Nicholas Greek Orthodox Church | New York, NY | To Support the Mission of the Charity | $100,000 |
| Hellenic Initiative Inc | New York, NY | To Support the Mission of the Charity | $50,000 |
| Washington Oxi Day Foundation | Washington, DC | To Support the Mission of the Charity | $50,000 |
| Loukoumi Make a Difference Foundation | Tuckahoe, NY | To Support the Mission of the Charity | $25,000 |
| Gift of Adoption | Northbrook, IL | To Support the Mission of the Charity | $10,000 |
| St Iakovos Retreat Center | Chicago, IL | To Support the Mission of the Charity | $5,000 |
| Order of St Andrew | New York, NY | To Support the Mission of the Charity | $4,000 |
| Hellenic American Academy | Lowell, MA | To Support the Mission of the Charity | $2,500 |
| Hillsdale College | Hillsdale, MI | To Support the Mission of the Charity | $2,000 |
| Turning Point USA | Lemont, IL | To Support the Mission of the Charity | $1,000 |
| Heritage Foundation | Washington, DC | To Support the Mission of the Charity | $100 |
Names and purposes as reported to the IRS.
Where its grants went
Quick answers
Does The John P Calamos Foundation accept grant applications?
According to its Form 990-PF for tax year 2025, The John P Calamos Foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
How much does The John P Calamos Foundation give each year?
For tax year 2025, it reported $999,600 in grants and contributions paid (13 grants). Giving can change from year to year.
What organizations has The John P Calamos Foundation funded?
Its largest grants in tax year 2025 went to National Hellenic Museum (IL), $650K, Assumption Greek Orthodox Church (IL), $100K, St Nicholas Greek Orthodox Church (NY), $100K, Hellenic Initiative Inc (NY), $50K and Washington Oxi Day Foundation (DC), $50K.