The Thornton Foundation Delaware
Preselected recipients only
The Thornton Foundation Delaware is a private foundation in San Marino, California. In tax year 2025 it gave $4.0 million in 1 grant; the typical grant was $4.0 million and the largest $4.0 million. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$4.0 million
- Number of grants1
- Typical grant$4.0 million
- Largest grant$4.0 million
- Assets$149 million
- New grantees0%
Giving in 2025 was up from $3.7 million the year before.
0% of its 2025 grantees had not received a grant from it the year before, so most of its money goes to organizations it already funds.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $3.6 million | 1 | $88.6 million |
| 2024 | $3.7 million | 1 | $134 million |
| 2025 | $4.0 million | 1 | $149 million |
How to apply
The Thornton Foundation Delaware says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
Where it gives
All of its grants went to recipients in California.
| State | Grants | Amount |
|---|---|---|
| California | 1 | $4.0 million |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Detailed Information Available Upon Request | Public charities | $4.0 million |
Officers and trustees
- Charles B Thornton
- Geneva H Thornton
- Robert L Zuber
- Bette P Cook
- John Meyers
Questions people ask
Does The Thornton Foundation Delaware accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does The Thornton Foundation Delaware give?
$4.0 million in tax year 2025, across 1 grant, with a typical grant of $4.0 million.
Who runs The Thornton Foundation Delaware?
Its 2025 filing lists Charles B Thornton (Chairman of the Board), Geneva H Thornton (Secretary), Robert L Zuber (Cfo) and Bette P Cook (Secretary) among 5 officers and trustees.