The Harry B and Betty M Corliss Foundation
Invitation OnlyWilmington, Delaware · EIN 87-3860074 · Private foundation
Grants paid (2025)$67K
Organizations funded4
Typical grant$10,000
Total assets$1.6M
Half of its grants to organizations were between $5,000 and $16,000.
From the return
How to apply
On its return for tax year 2025 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 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Boise State University | Boise, ID | Boise State's scholarship fund | $36,000 |
| Sumner-Bonney Lake Education Foundation | Sumner, WA | 2025 Scholarships Scholarship Fund | $16,000 |
| Stephen Siller Tunnel to Towers Foundation | Staten Island, NY | General & Unrestricted | $10,000 |
| Sundance Circle Hippotherapy Foundation | Sumner, WA | Charitable Event | $5,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $67,000 | 4 |
| 2024 | $141,500 | 17 |
| 2023 | $68,500 | 12 |
Sources
- IRS Form 990-PF, tax year 2025, filed Jun 25, 2026 - IRS e-file batch, object ID 202601769349100015
- IRS Tax Exempt Organization Search for EIN 87-3860074
- 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.