Before you apply to The Duffield Family Foundation DBA Maddie's Fund
Who to contact, what to include, deadlines, typical grant size and geographic focus are available with membership.
Private Foundation
THE DUFFIELD FAMILY FOUNDATION DBA MADDIE'S FUND
THE DUFFIELD FAMILY FOUNDATION DBA MADDIE'S FUND is a private foundation categorized as Private Foundation based in PLEASANTON, CA. Its most recent IRS filing (2025) reports revenue of $17.2M, expenses of $18.3M, total assets of $277.6M. Imperigo tracks 3,395 reported grants from this foundation totaling approximately $109.8M.
EIN: 943362163
PLEASANTON, CA
Education N.E.C.
NTEE: B99
Latest filing: 2025
Total Revenue$17.2M
Total Expenses$18.3M
Total Assets$277.6M
Grants Given3,395
Grant Total$109.8M
Filing Years2021–2025
Sample Grants Given
COMPANIONS AND ANIMALS FOR REFORM AND EQUITY
2023 VISION: HUMAN AND ANIMAL WELL-BEING
$1,466,000
SAN FRANCISCO SPCA
2022 - 2025 COMET PROGRAM
$1,158,767
UC DAVIS FOUNDATION
BEHAVIORAL EUTHANASIA STUDY
$1,137,345
CORNELL UNIVERSITY
MADDIE'S SHELTER MEDICINE PROGRAM, YEARS 20 - 24 CONTINUATION GRANT
$935,000
HUMANE RESCUE ALLIANCE
COMMUNITY CONVERSATIONS STEERING COMMITTEE 2024-25
$878,993
Showing up to 5 of 3,395 total records — full history available with membership.
Officers & Directors
CHAIRMAN
Amy D Zeifang
SECRETARY
Laurie Peek
EXECUTIVE LEADER
Mary Ippoliti-Smith
BOARD MEMBER
Michael Duffield
TREASURER
Steve Hill
VP FINANCE
Valerie Stoltenberg
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $17.2M | $18.3M | $277.6M |
| 2024 | $12.5M | $24.9M | $266.7M |
| 2023 | $15.2M | $16.2M | $260.0M |
| 2022 | $20.1M | $19.4M | $258.4M |
| 2021 | $10.7M | $23.0M | $297.4M |
Between 2021 and 2025, reported annual revenue grew from $10.7M to $17.2M (+60%), with total assets most recently reported at $277.6M.
Interactive year-over-year charts and full filing details available with membership.
Grant Geography
Grants from this foundation were reported to recipients in AK, AL, AR, AZ, CA, CO, and 4 other states.
AKALARAZCACOCTDCDEFL
Full geographic grant map with state-by-state breakdown available with membership.