10 private foundations based in Connecticut whose IRS 990-PF grant purposes mention the environment; 2 filed application instructions. Data as of 2026-11-02, sorted by grants paid.
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| Foundation | City | Status | Grants paid | Typical grant | Tax year |
|---|---|---|---|---|---|
| Edward John Noble Foundation Inc | Greenwich | Open to applications | $5,464,230 | $10,000 | 2024 |
| Karin Bain And John Kukral Foundation | Old Greenwich | Preselected only | $5,144,566 | $23,750 | 2025 |
| The Emily Hall Tremaine Foundation Inc | Tolland | Preselected only | $2,870,727 | $4,500 | 2024 |
| The Hayes Foundation | New Haven | Preselected only | $2,206,025 | $30,000 | 2025 |
| The Betsy And Jesse Fink Family Foundation | Fairfield | Preselected only | $1,678,988 | $17,500 | 2024 |
| The Edward And Mary Lord Foundation | North Franklin | Preselected only | $933,482 | $20,000 | 2024 |
| Streicker Foundation Inc | Milford | Preselected only | $772,500 | $10,000 | 2025 |
| Pepper Whiston Foundation | West Hartford | Preselected only | $729,000 | $16,000 | 2024 |
| R T Vanderbilt Trust Agy Main | Norwalk | Preselected only | $531,146 | $4,000 | 2024 |
| The Robert & Margaret Patricelli Family Foundation | Simsbury | Open to applications | $336,113 | $1,000 | 2023 |