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 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
BALTIMORE, MD · 2024
2023 VISION: HUMAN AND ANIMAL WELL-BEING
$1,466,000
SAN FRANCISCO SPCA
SAN FRANCISCO, CA · 2024
2022 - 2025 COMET PROGRAM
$1,158,767
UC DAVIS FOUNDATION
DAVIS, CA · 2024
BEHAVIORAL EUTHANASIA STUDY
$1,137,345
CORNELL UNIVERSITY
ITHACA, NY · 2024
MADDIE'S SHELTER MEDICINE PROGRAM, YEARS 20 - 24 CONTINUATION GRANT
$935,000
HUMANE RESCUE ALLIANCE
WASHINGTON, DC · 2024
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

EDUCATION
$5,030,834 41 grants
PROGRAM SUPPORT
$4,959,129 426 grants
MADDIE'S MILLION PET CHALLENGE
$4,810,826 13 grants
Operations
$4,461,162 174 grants
Research
$4,076,256 25 grants

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.

See the full picture for THE DUFFIELD FAMILY FOUNDATION DBA MADDIE'S FUND

Complete financials, all 3,395 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

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