Funding search · EIN 943362163 · Pleasanton, CA

The Duffield Family Foundation

A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.

1,011
grants reported
$46.0M
total given
2021–2024
filing years
$5,000
median grant

Based on grants this organization reported to the IRS for tax years 20212024. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.

What they fund

challengeopenarmscommunitybipocwinnerconversationsmonthly

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Funding pattern

What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.

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2 grants matching “microchip · $23,500

  • $18,500

    Tehama County Animal Services · Red Bluff, CA · 2022

    2023 cawfc - vaccine and microchip clinics

  • $5,000

    Kings County Animal Services · Hanford, CA · 2021

    Cawfc - microchip clinics

Top recipients

Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.

  • Companions and Animals for Reform and Equity21 grants · $5.9M
  • University of Tennessee6 grants · $4.5M
  • Austin Pets Alive9 grants · $3.2M
  • Best Friends Animal Society8 grants · $3.2M
  • Regents of the University of California5 grants · $2.4M
  • University of Wisconsin-Madison14 grants · $2.2M
  • Cornell University6 grants · $2.1M
  • Humane Rescue Alliance8 grants · $1.5M
  • San Francisco Spca4 grants · $1.4M
  • The Humane Society of the United States7 grants · $1.3M

Giving over time

$10.7M
2021
$10.0M
2022
$11.3M
2023
$14.0M
2024

Grant history

The 100 largest of 1,011 grants.

  • $1.5M

    Companions and Animals for Reform and Equity · Baltimore, MD · 2024

    2023 vision: human and animal well-being

  • $1.3M

    Companions and Animals for Reform and Equity · Baltimore, MD · 2023

    2023 vision: human and animal well-being

  • $1.2M

    University of Tennessee · Knoxville, TN · 2023

    Establishing aligncare

  • $1.2M

    University of Tennessee · Knoxville, TN · 2022

    Establishing aligncare

  • $1.2M

    San Francisco Spca · San Francisco, CA · 2024

    2022 - 2025 comet program

  • $1.1M

    Uc Davis Foundation · Davis, CA · 2024

    Behavioral euthanasia study

  • $1.1M

    Regents of the University of California · Davis, CA · 2023

    Maddie's million pet challenge

  • $1.1M

    University of Tennessee · Knoxville, TN · 2021

    Establishing aligncare

  • $935,000

    Cornell University · Ithaca, NY · 2024

    Maddie's shelter medicine program, years 20 - 24 continuation grant

  • $878,993

    Humane Rescue Alliance · Washington, DC · 2024

    Community conversations steering committee 2024-25

  • $827,014

    University of Wisconsin-Madison · Madison, WI · 2024

    Maddie's clinical instructor

  • $790,562

    Regents of the University of California · Davis, CA · 2022

    Maddie's million pet challenge

  • $750,000

    Best Friends Animal Society · Kanab, UT · 2024

    2022 - 2025 shelter embed program

  • $750,000

    Best Friends Animal Society · Kanab, UT · 2023

    2022 - 2025 shelter embed program

  • $750,000

    Best Friends Animal Society · Kanab, UT · 2022

    2022 - 2025 shelter embed program

  • $750,000

    Best Friends Animal Society · Kanab, UT · 2021

    2022 - 2026 shelter embed program

  • $704,983

    University of Tennessee · Knoxville, TN · 2024

    Aligncare's 5-year strategic plan through 2029

  • $625,000

    Inquiring Systems · Santa Rosa, CA · 2024

    Maddie's university online course development - deep dive modules

  • $625,000

    Austin Pets Alive · Austin, TX · 2022

    Human animal support services

  • $617,000

    Companions and Animals for Reform and Equity · Baltimore, MD · 2021

    Care center expansion

  • $600,000

    Journey You Own · Belmont, CA · 2023

    Professional leadership certification

  • $584,000

    Companions and Animals for Reform and Equity · Baltimore, MD · 2022

    Care center expansion

  • $572,500

    Austin Pets Alive · Austin, TX · 2024

    Community conversations steering committee 2024-25

  • $562,500

    Austin Pets Alive · Austin, TX · 2023

    Human animal support services

  • $562,500

    Austin Pets Alive · Austin, TX · 2022

    Human animal support services

  • $536,837

    Regents of the University of California · Davis, CA · 2021

    Maddie's million pet challenge

  • $531,383

    The Humane Society of the United States · Washington, DC · 2022

    Ad council campaign - year 13

  • $505,000

    Companions and Animals for Reform and Equity · Baltimore, MD · 2023

    Care center expansion

  • $500,000

    Austin Pets Alive · Austin, TX · 2021

    Human animal support services

  • $500,000

    Berkeley Humane · Berkeley, CA · 2021

    Capital project

  • $443,921

    University of Florida · Gainesville, FL · 2021

    Maddie's million pet challenge

  • $405,000

    Joybound People & Pets · Walnut Creek, CA · 2024

    2024 bring your dog to workday

  • $403,103

    Open Door Veterinary Collective · Grand Rapids, OH · 2024

    2025 - 2027 maddie's million pet challenge

  • $375,000

    Austin Pets Alive · Austin, TX · 2021

    Maddie's learning academy

  • $373,771

    University of Tennessee · Knoxville, TN · 2023

    Nevada aligncare project

  • $368,949

    Cornell University · Ithaca, NY · 2023

    Maddie's shelter medicine program, years 15 - 19

  • $362,368

    Cornell University · Ithaca, NY · 2022

    Maddie's shelter medicine program, years 15 - 19

  • $355,979

    Cornell University · Ithaca, NY · 2021

    Maddie's shelter medicine program, years 15 - 19

  • $350,000

    Companions and Animals for Reform and Equity · Baltimore, MD · 2022

    Care redi course scholarships

  • $345,000

    The Humane Society of the United States · Washington, DC · 2021

    Ad council pet adoption campaign - year 12

  • $335,090

    University of Florida Foundation · Gainesville, FL · 2024

    Maddie's million pet challenge

  • $330,000

    Aligncare Health · Knoxville, TN · 2024

    Community conversations - october 2024 - monthly winner

  • $326,363

    University of Wisconsin-Madison · Madison, WI · 2023

    Shelter medicine teaching and training programs

  • $322,203

    University of Florida · Gainesville, FL · 2023

    Maddie's million pet challenge

  • $319,345

    University of Wisconsin-Madison · Madison, WI · 2022

    Shelter medicine teaching and training programs

  • $310,000

    Team Shelter USA Llc · Coral Springs, FL · 2024

    2025 maddie's million pet challenge

  • $309,810

    University of Florida · Gainesville, FL · 2022

    Maddie's million pet challenge

  • $260,000

    National Animal Care & Control Association · Lindsborg, KS · 2024

    2024 - 2026 operations support

  • $250,000

    Brother Wolf Animal Rescue · Asheville, NC · 2024

    2024 hurricane relief grant

  • $250,000

    Kent Animal Shelter · Calverton, NY · 2024

    Capital campaign

  • $250,000

    Humane Rescue Alliance · Washington, DC · 2023

    National alliance support

  • $250,000

    Companions and Animals for Reform and Equity · Baltimore, MD · 2022

    Diversity, equity and inclusion in animal welfare

  • $250,000

    Humane Rescue Alliance · Washington, DC · 2022

    National programs and bipoc leadership support

  • $250,000

    Companions and Animals for Reform and Equity · Baltimore, MD · 2021

    Diversity, equity and inclusion in animal welfare

  • $250,000

    The Association for Animal Welfare Advancement · Surprise, AZ · 2021

    Scholarships for veterinary clinical care master's degree

  • $240,000

    Open Door Veterinary Collective · Grand Rapids, OH · 2022

    Maddie's million pet challenge

  • $231,500

    Tony La Russa'S Animal Rescue Foundation · Walnut Creek, CA · 2021

    Community veterinary services expansion

  • $203,610

    Friends of Oakland Animal Services · Oakland, CA · 2024

    Community clinics

  • $201,250

    The Humane Society of the United States · Washington, DC · 2022

    Ad council campaign - year 12

  • $198,000

    Joybound People & Pets · Walnut Creek, CA · 2023

    2024 pet safety net program

  • $171,135

    University of Wisconsin-Madison · Madison, WI · 2021

    Maddie's shelter medicine research fellow, clinical instructor and elective

  • $165,000

    The Humane Society of the United States · Washington, DC · 2022

    2023 animal care expo scholarships

  • $160,000

    Team Shelter USA Llc · Coral Springs, FL · 2023

    Maddie's million pet challenge

  • $160,000

    Team Shelter USA Llc · Coral Springs, FL · 2022

    Maddie's million pet challenge

  • $160,000

    Open Door Veterinary Collective · Grand Rapids, OH · 2021

    Maddie's million pet challenge

  • $160,000

    Team Shelter USA Llc · Coral Springs, FL · 2021

    Maddie's million pet challenge

  • $150,000

    Project Street Vet · Encinitas, CA · 2024

    Strategic planning consultant - year 2 & 3

  • $150,000

    Aspca · New York, NY · 2023

    Improving access to veterinary care through research

  • $150,000

    Companions and Animals for Reform and Equity · Baltimore, MD · 2023

    The gathering 2024 conference sponsorship

  • $150,000

    University of Wisconsin-Madison · Madison, WI · 2023

    Wiscares operating support

  • $150,000

    Aspca · New York, NY · 2022

    Improving access to veterinary care through research

  • $150,000

    Aspca · New York, NY · 2021

    Improving access to veterinary care through research

  • $147,500

    Best Friends Animal Society · Kanab, UT · 2021

    2022 national conference sponsorship

  • $141,000

    Jvr Shelter Strategies Llc · Belmont, CA · 2024

    Community engagement case study

  • $135,031

    University of Wisconsin-Madison · Madison, WI · 2021

    Shelter medicine teaching and training programs

  • $122,176

    Open Door Veterinary Collective · Grand Rapids, OH · 2023

    Maddie's national director of programs and partnerships

  • $120,000

    The Paw Mission · Yucaipa, CA · 2024

    2024 - 2025 conference scholarship fund

  • $102,500

    Jvr Shelter Strategies Llc · Belmont, CA · 2023

    Community engagement case study

  • $100,000

    Open Door Veterinary Collective · Grand Rapids, OH · 2023

    Maddie's million pet challenge

  • $100,000

    San Francisco Spca · San Francisco, CA · 2023

    Comet program

  • $100,000

    San Francisco Spca · San Francisco, CA · 2022

    Comet program

  • $100,000

    University of Wisconsin-Madison · Madison, WI · 2022

    Wiscares salary support for cvt and social worker

  • $94,400

    Open Door Veterinary Collective · Grand Rapids, OH · 2022

    Maddie's national director of programs and partnerships

  • $90,460

    Humane World for Animals · Washington, DC · 2024

    2025 animal care expo sponsorship

  • $80,000

    Association of Shelter Veterinarians · Apex, NC · 2024

    Dental care planning grant

  • $79,488

    The Inner Pup · New Orleans, LA · 2024

    2025 community health fair for people & pets sponsorship

  • $76,000

    The Association for Animal Welfare Advancement · Surprise, AZ · 2024

    2024 fall conference scholarships

  • $75,000

    Natives in Vetmed · Fort Collins, CO · 2024

    2025 conference and clinical practice experience scholarship fund

  • $75,000

    Shelter Animals Count · Atlanta, GA · 2021

    Operations

  • $68,108

    Multicultural Veterinary Medical Association · Silverdale, WA · 2024

    Open access fees

  • $65,000

    Underdog Pet Rescue · Monona, WI · 2024

    Ultrasound machine

  • $65,000

    Project Street Vet · Encinitas, CA · 2023

    Strategic planning consultant

  • $62,500

    The Animal Rescue Foundation · Walnut Creek, CA · 2022

    2022 pet safety net program

  • $62,000

    Lucky Dog Animal Rescue · Arlington, VA · 2024

    2025 scholarships for rural organizations

  • $60,000

    Companions and Animals for Reform and Equity · Baltimore, MD · 2023

    The gathering 2023 conference sponsorship

  • $60,000

    University of Wisconsin-Madison · Madison, WI · 2022

    Wiscares

  • $57,250

    The Humane Society of the United States · Washington, DC · 2022

    2023 animal care expo sponsorship

  • $55,000

    Heaven Can Wait Animal Society · Las Vegas, NV · 2023

    Capacity expansion & wellness relaunch

  • $55,000

    Nevada Society for the Prevention of Cruelty To Animals · Las Vegas, NV · 2023

    Professional development & community support desk

  • $55,000

    Redwood Coast Humane Society · Gualala, CA · 2021

    Shelter van and medical funding

View all 1,011 grants →

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Source: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.