The Mill Spring Foundation
Invitation OnlyWilmington, Delaware · EIN 23-6230874 · Private foundation
Grants paid (2024)$653K
Organizations funded22
Typical grant$10,000
Total assets$4.2M
Half of its grants to organizations were between $5,000 and $25,000.
From the return
How to apply
On its return for tax year 2024 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
100% of grants went outside Delaware.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| The World Affairs Council of Philadelphia | Philadelphia, PA | General support | $200,000 |
| Franklin Institute | Philadelphia, PA | General support | $100,000 |
| Science History Institute | Philadelphia, PA | General support | $100,000 |
| Woodmere Art Museum | Philadelphia, PA | General support | $50,000 |
| Consumer Bankruptcy Assistance Project | Philadelphia, PA | General support | $25,000 |
| Whitemarsh Foundation | Lafayette Hill, PA | General support | $25,000 |
| Leadership Institute | Arlington, VA | General support | $25,000 |
| Face to Face | Philadelphia, PA | General support | $20,000 |
| Wissahickon Valley Public Library | Ambler, PA | General support | $15,000 |
| Girl Scouts of Eastern Pa | Miquon, PA | General support | $10,000 |
| Family Promise Montco Pa | Ambler, PA | General support | $10,000 |
| Foundation for Free Enterprise Education | Erie, PA | General support | $10,000 |
| Horizons Cristo Rey | Philadelphia, PA | General support | $10,000 |
| Philadelphia Zoo | Philadelphia, PA | General support | $10,000 |
| Gemma Services | Plymouth Meeting, PA | General support | $7,500 |
| Music Works | Havertown, PA | General support | $7,500 |
| Children's Scholarship Fund Phila | Philadelphia, PA | General support | $5,000 |
| Cradle of Hope | Jenkintown, PA | General support | $5,000 |
| Enchantment Theater Company | Philadelphia, PA | General support | $5,000 |
| Hope Springs Equestrian Therapy | Chester Springs, PA | General support | $5,000 |
| Rock to the Future | Philadelphia, PA | General support | $5,000 |
| Special Equestrians | Warrington, PA | General support | $3,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $653,000 | 22 |
| 2023 | $856,000 | 24 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 13, 2025 - IRS e-file batch, object ID 202523179349101692
- IRS Tax Exempt Organization Search for EIN 23-6230874
- Profile updated Nov 5, 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.