The John P Calamos Foundation
Preselected recipients only
The John P Calamos Foundation is a private foundation in Naperville, Illinois. In tax year 2025 it gave $999,600 in 13 grants; the typical grant was $10,000 and the largest $650,000. 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$999,600
- Number of grants13
- Typical grant$10,000
- Largest grant$650,000
- Assets$56.5 million
- New grantees69%
Giving in 2025 was down from $13.2 million the year before.
69% of its 2025 grantees had not received a grant from it the year before, a sign it is open to new organizations.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $1.6 million | 13 | $36.3 million |
| 2024 | $13.2 million | 8 | $44.9 million |
| 2025 | $999,600 | 13 | $56.5 million |
How to apply
The John P Calamos 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 The John P Calamos Foundation funds
Where it gives
Its grants went to recipients in 5 states, the most to Illinois.
| State | Grants | Amount |
|---|---|---|
| Illinois | 5 | $766,000 |
| New York | 4 | $179,000 |
| District of Columbia | 2 | $50,100 |
| Massachusetts | 1 | $2,500 |
| Michigan | 1 | $2,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| National Hellenic Museum | To support the mission of the charity | $650,000 |
| Assumption Greek Orthodox Church | To support the mission of the charity | $100,000 |
| St Nicholas Greek Orthodox Church | To support the mission of the charity | $100,000 |
| Hellenic Initiative Inc | To support the mission of the charity | $50,000 |
| Washington Oxi Day Foundation | To support the mission of the charity | $50,000 |
| Loukoumi Make A Difference Foundation | To support the mission of the charity | $25,000 |
| Gift of Adoption | To support the mission of the charity | $10,000 |
| St Iakovos Retreat Center | To support the mission of the charity | $5,000 |
| Order of St Andrew | To support the mission of the charity | $4,000 |
| Hellenic American Academy | To support the mission of the charity | $2,500 |
| Hillsdale College | To support the mission of the charity | $2,000 |
| Turning Point USA | To support the mission of the charity | $1,000 |
| Heritage Foundation | To support the mission of the charity | $100 |
Officers and trustees
- John P Calamos Sr
- Mae Calamos
- Laura Calamos
- James R Adams
- Kenneth S Witkowski
Questions people ask
Does The John P Calamos Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does The John P Calamos Foundation give?
$999,600 in tax year 2025, across 13 grants, with a typical grant of $10,000.
Who runs The John P Calamos Foundation?
Its 2025 filing lists John P Calamos Sr (Co-Trustee), Mae Calamos (Co-Trustee), Laura Calamos (Co-Trustee) and James R Adams (Co-Trustee) among 5 officers and trustees.
What does The John P Calamos Foundation fund?
Based on its grants, mainly faith communities, arts and culture and education.