Holstein Foundation
Historical FunderMystic, Connecticut · EIN 23-7012134 · Private foundation
Half of its grants to organizations were between $250 and $5,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | JOHN HOLSTEIN |
|---|---|
| Address | 12 ROOSEVELT AVE, MYSTIC CT 06355 |
| Phone | 8605728515 |
| Form and materials | LETTER REQUEST, MOST RECENT ANNUAL REPORT, AND PURPOSE FOR APPLICATION |
| Deadlines | NO |
| Restrictions | NO |
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
50% of grants went outside Connecticut.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Mystic Aquarium | Mystic, CT | Support | $12,500 |
| Westerly Hospital | Westerly, RI | Support | $6,250 |
| Lawrence & Memorial Hospital | New London, CT | Support | $5,000 |
| Bement School | Deerfield, MA | Support | $1,000 |
| Sunshine Kids Foundation | Hartford, CT | Support | $1,000 |
| St Jude Children's Research Hospital | New York, NY | Support | $1,000 |
| Always Home | Mystic, CT | Support | $500 |
| Stonington Ambulance Corp | Stonington, CT | Support | $250 |
| John E Fogarty Foundation | Providence, RI | Support | $250 |
| American Red Cross | Boone, IA | Support | $100 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $27,850 | 10 |
| 2024 | $24,525 | 11 |
| 2023 | $35,100 | 15 |
| 2021 | $26,200 | 14 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 13, 2026 - IRS e-file batch, object ID 202631339349103608
- IRS Tax Exempt Organization Search for EIN 23-7012134
- 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.