The Duffield Family Foundation
Pleasanton, California · EIN 943362163 · Private foundation
Based in Pleasanton, California, The Duffield Family Foundation has awarded $88.9M across 2,447 grants in our index of public IRS filings, with giving recorded as recently as 2025. Its largest grant on record went to Adopt-a-petcom. This public overview covers its focus areas, selected grant examples, and application guidance.
What The Duffield Family Foundation funds
The Duffield Family Foundation's giving carries a documented focus on civil rights & social justice, criminal justice, education, health care, higher education, and related causes.
Populations it has supported include black communities, families, foster youth, rural communities, women girls.
Selected grant examples
Up to three historical grant examples from public IRS filings are shown below, ordered by amount. This sample is not a complete funding history.
| Recipient | Location | Grant | Year |
|---|---|---|---|
| Adopt-a-petcom Technology | Claremont, CA | $2.0M | 2017 |
| Austin Pets Alive EDUCATION | Austin, TX | $1.8M | 2018 |
| University of Florida EDUCATION | Gainesville, FL | $1.7M | 2018 |
How to apply for funding from The Duffield Family Foundation
From The Duffield Family Foundation's IRS Form 990-PF, on how it handles applications:
Verify the current process on the foundation's own materials before sending anything. You can review the foundation directly at maddiesfund.org.
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Frequently asked questions about The Duffield Family Foundation
- Does The Duffield Family Foundation accept grant applications?
- Yes — The Duffield Family Foundation's IRS filing describes an application process. Confirm the current details directly with the foundation before applying.
- What does The Duffield Family Foundation fund?
- The Duffield Family Foundation's grants focus on civil rights & social justice. Example recipients include Adopt-a-petcom, Austin Pets Alive, University of Florida. Up to three historical grant examples appear above. Full indexed grant histories require All access at $19/month.
- How much does The Duffield Family Foundation give in grants?
- The Duffield Family Foundation reported $9.9M in grants in an indexed IRS filing (FY2020). Across all years in our data it has awarded $88.9M over 2,447 grants.
- Where is The Duffield Family Foundation located?
- The Duffield Family Foundation is based in Pleasanton, California. Its IRS employer identification number (EIN) is 943362163.
- How can I find foundations similar to The Duffield Family Foundation?
- Compare priorities, past recipients, and grant sizes with your program. Bespoke Grants includes one free successful search per account, for life, with up to three sourced matches. No card. Further searches and full research cost $19/month.
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