Mt Cuba Astronomical Foundation
Historical FunderWilmington, Delaware · EIN 20-5012202 · Private foundation · Website
Half of its grants to organizations were between $53,441 and $118,650.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | JAMES LANG ADMINISTRATOR |
|---|---|
| Address | PO BOX 4556, GREENVILLE DE 19807 |
| Phone | 3025406389 |
| Form and materials | APPLICATIONS SHOULD ADHERE TO THE GRANT APPLICATION GUIDELINES (AVAILABLE ON OUR WEBSITE: MTCUBAFND.ORG OR BY MAIL TO JAMES LANG). |
| Deadlines | NO DEADLINES. |
| Restrictions | APPLICANT NEEDS TO BE A QUALIFIED NON-PROFIT ORGANIZATION WITH THE IRS. |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
87% of grants went outside Delaware.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| President and Fellows of Harvard College | Boston, MA | General | $250,000 |
| University of Hawaii Foundation | Honolulu, HI | General | $243,232 |
| Carnegie Science | Washington, DC | General | $118,650 |
| The Research Foundation for the Suny | Albany, NY | General | $102,000 |
| The University of Texas Rio Grande Valley | Mcallen, TX | General | $88,076 |
| Lowell Observatory | Flagstaff, AZ | General | $69,070 |
| The University Corporation | Northridge, CA | General | $53,441 |
| Mt Cuba Astronomical Observatory- Vernon Lecture | Wilmington, DE | General | $17,956 |
The return also lists 8 grants to individuals ($16,000). We do not publish the names of individual recipients.
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $958,425 | 16 |
| 2024 | $963,886 | 14 |
| 2023 | $929,927 | 5 |
Sources
- IRS Form 990-PF, tax year 2025, filed Jun 15, 2026 - IRS e-file batch, object ID 202641669349100009
- IRS Tax Exempt Organization Search for EIN 20-5012202
- 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.