Foundations · IRS 990 filings

Foundations in Arizona

1,152
foundations
$905.8M
grants paid, FY2023–FY2025
228
say they accept unsolicited
$7,500
median grant

Grantlas lists 1,152 foundations based in Arizona — 1,066 private foundations and 86 grantmaking charities such as community foundations and United Ways — from their 990-PF and Form 990 filings for FY2023–FY2025. Together they paid out $905.8 million in grants in their latest filing year, and 228 of them (20%) say they accept unsolicited requests. The most common cities are Scottsdale (285), Phoenix (229) and Tucson (193).

228 of them say on their 990-PF that they accept unsolicited requests. Foundations accepting applications in Arizona.

Top 25 of 1,152 foundations

All 25 foundations below say on their 990-PF that they accept unsolicited requests. Another 203 in this list say so too. Ranked by what they paid in grants in their latest filing.

Foundations in Arizona
The Diane and Bruce Halle FoundationScottsdale, AZ$100,000$47.7M$1,000–$2.4MFY2024Locked: fit score and contacts
The Bob & Renee Parsons FoundationScottsdale, AZ$250,000$26M$1,000–$10MFY2024Locked: fit score and contacts
Freeport McMoran FoundationPhoenix, AZ$24.6M$25.9M$23.2M–$25.9MFY2025Locked: fit score and contacts
Virginia G Piper Charitable TrustPhoenix, AZ$7,500$24.5M$25–$1MFY2024Locked: fit score and contacts
Research Corporation dba ResearchTucson, AZ$55,000$8M$74–$193,142FY2024Locked: fit score and contacts
Dorrance Family FoundationScottsdale, AZ$25,000$5.6M$250–$1MFY2024Locked: fit score and contacts
Ruth McC Tankersley Charitable FndTucson, AZ$50,000$4.7M$3,000–$950,000FY2025Locked: fit score and contacts
Del E Webb FoundationPrescott, AZ$53,500$3.9M$5,000–$325,000FY2025Locked: fit score and contacts
Tw Lewis FoundationPhoenix, AZ$25,000$3.7M$500–$600,000FY2025Locked: fit score and contacts
The Eliot Spalding FoundationOro Valley, AZ$8,000$3M$2,000–$657,470FY2025Locked: fit score and contacts
Bechtel Group FoundationGlendale, AZ$1,000$3M$100–$500,000FY2024Locked: fit score and contacts
Armstrong McDonald FoundationTucson, AZ$76,460$2.7M$18,000–$610,000FY2025Locked: fit score and contacts
Dorrance Foundation for EducationScottsdale, AZ$4,000$2.7M$250–$438,000FY2024Locked: fit score and contacts
Connie Hillman Family FoundationTucson, AZ$143,316$2.7M$2,500–$975,000FY2024Locked: fit score and contacts
On Semiconductor FoundationScottsdale, AZ$12,488$2.6M$3,512–$2MFY2024Locked: fit score and contacts
The Picerne Family Charitable FoundationPhoenix, AZ$1,250$2.5M$14–$547,500FY2024Locked: fit score and contacts
Lapan Memorial Sunshine Foundation IncTucson, AZ$3,927$1.8M$200–$707,412FY2024Locked: fit score and contacts
The Hs Lopez Family FoundationTucson, AZ$10,000$1.8M$1,000–$2MFY2024Locked: fit score and contacts
Margaret T Morris FoundationPrescott, AZ$10,000$1.7M$450–$100,000FY2025Locked: fit score and contacts
Marshall FoundationTucson, AZ$25,000$1.7M$500–$200,000FY2024Locked: fit score and contacts
Margaret E Mooney FoundationTucson, AZ$175,000$1.7M$1,000–$750,000FY2025Locked: fit score and contacts
Jw Kieckhefer FoundationPrescott, AZ$12,500$1.6M$1,000–$1.6MFY2025Locked: fit score and contacts
Potoff Private PhilanthropyTucson, AZ$177,000$1.6M$15,000–$775,000FY2025Locked: fit score and contacts
Canyon InstitutePhoenix, AZ$3,000$1.6M$1,320–$347,885FY2024Locked: fit score and contacts
Delta Dental Plan of ArizonaScottsdale, AZ$16,240$1.4M$5,000–$300,000FY2024Locked: fit score and contacts
  • Median grant and grant range come from the 990-PF grant schedule; a dash means there is none to report.
  • “One grant” means a schedule with a single grant — no median, nothing to range over. “One amount” means several grants, all the same size.

1,127 more foundations — see all in Grantlas

Data from 990-PF and Form 990 filings, FY2023–FY2025. Updated November 8, 2026.