Diffenbaugh Foundation
Accepts applications
Diffenbaugh Foundation is a private foundation in Stanford, California. In tax year 2025 it gave $13,000 in 5 grants; the typical grant was $2,000 and the largest $7,000. It accepts applications; its filing gives the instructions below.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$13,000
- Number of grants5
- Typical grant$2,000
- Largest grant$7,000
- Assets$375,198
- New grantees40%
Giving in 2025 was up from $8,000 the year before.
40% of its 2025 grantees had not received a grant from it the year before, a sign it is open to new organizations.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $8,000 | 4 | $248,126 |
| 2024 | $8,000 | 4 | $264,818 |
| 2025 | $13,000 | 5 | $375,198 |
How to apply
| Contact | Polly Diffenbaugh PO Box 20204, Stanford, CA 94305 |
|---|---|
| Phone or email | (650) 223-9421 |
| What to submit | No Specific Form Requirements |
| Deadlines | No Submission Deadline |
| Restrictions | No Restrictions or Limitations on Awards |
Where it gives
All of its grants went to recipients in California.
| State | Grants | Amount |
|---|---|---|
| California | 5 | $13,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Vermillion Sea Institute | General | $7,000 |
| Marine Mammal Center | General | $2,000 |
| Wildman Science Learning | General | $2,000 |
| The Teaching Well | General | $1,500 |
| Growing Together Bay Area | General | $500 |
Officers and trustees
- Flora Worley
- Ann Balliet
- Polly Diffenbaugh
Questions people ask
Does Diffenbaugh Foundation accept grant applications?
Yes. Its latest IRS filing says it accepts applications, with this on deadlines: No Submission Deadline.
How much does Diffenbaugh Foundation give?
$13,000 in tax year 2025, across 5 grants, with a typical grant of $2,000.
Who runs Diffenbaugh Foundation?
Its 2025 filing lists Flora Worley (Secretary), Ann Balliet (President) and Polly Diffenbaugh (Secretary/Treasurer).