William H Hinkle Charitable Foundation Inc
Invitation OnlyGeyserville, California · EIN 20-2045526 · Private foundation · Website
Grants paid (2024)$93K
Organizations funded4
Typical grant$13,000
Total assets$2.4M
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
25% of grants went outside California.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Sea Star Village | Geyserville, CA | Environmental grant | $50,000 |
| World Bamboo Foundation | Plytmouth, MA | Environmental grant | $25,000 |
| Russian River Keeper | Healdsburg, CA | Environmental grant | $13,000 |
| Geyserville Community Foundation | Geyserville, CA | Other | $5,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $93,000 | 4 |
| 2023 | $86,883 | 8 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 17, 2025 - IRS e-file batch, object ID 202513219349107501
- IRS Tax Exempt Organization Search for EIN 20-2045526
- Profile updated Nov 7, 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.