Private foundation · EIN 95-6048727
Diffenbaugh Foundation
Stanford, CA
Diffenbaugh Foundation is a private foundation based in Stanford, CA. On its Form 990-PF for tax year 2025, it reported $13K in grants and contributions paid across 5 grants, with $375K in assets (fair market value). Its return lists how to submit a request. Its largest grants went to Vermillion Sea Institute, Marine Mammal Center and Wildman Science Learning.
How to request funding
- Contact
- Polly Diffenbaugh
- Phone
- 6502239421
- Address
- PO Box 20204, Stanford, CA, 94305
- Form and materials
- No Specific Form Requirements
- Deadlines
- No Submission Deadline
- Restrictions
- No Restrictions or Limitations on Awards
As reported on the foundation's Form 990-PF for tax year 2025. Requirements change; confirm with the foundation before applying.
Largest grants, tax year 2025
Historical data · not a prediction| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Vermillion Sea Institute | Bonita, CA | General | $7,000 |
| Marine Mammal Center | Sausalito, CA | General | $2,000 |
| Wildman Science Learning | Half Moon Bay, CA | General | $2,000 |
| The Teaching Well | Oakland, CA | General | $1,500 |
| Growing Together Bay Area | Pinole, CA | General | $500 |
Names and purposes as reported to the IRS.
Where its grants went
Quick answers
Does Diffenbaugh Foundation accept grant applications?
Its Form 990-PF lists how to submit a request. Form and materials: No Specific Form Requirements. Deadlines: No Submission Deadline. Restrictions: No Restrictions or Limitations on Awards. Confirm current requirements with the foundation before applying.
How much does Diffenbaugh Foundation give each year?
For tax year 2025, it reported $13,000 in grants and contributions paid (5 grants). Giving can change from year to year.
What organizations has Diffenbaugh Foundation funded?
Its largest grants in tax year 2025 went to Vermillion Sea Institute (CA), $7K, Marine Mammal Center (CA), $2K, Wildman Science Learning (CA), $2K, The Teaching Well (CA), $1.5K and Growing Together Bay Area (CA), $500.