Ross and Patty McCallister Foundation
The Ross and Patty McCallister Foundation is a private foundation based in Tucson, Arizona. It supports organizations qualifying under Section 501(c)(3) that promote education, health and medical research and advancement, and community programs.
Key facts about Ross and Patty McCallister Foundation
In short: Ross and Patty McCallister Foundation gave $451K across 28 grants in 2024 (avg $16K), mostly in Arizona. 18% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- EIN
- 45-2596526
- Latest 990 filing
- Form 990-PF, 2024
- Annual giving (2024)
- $451,000
- Grants made (2024)
- 28
- Average grant
- $16,107
- Median grant
- $10,000
- New grantees (estimate)
- 18% first-time grantees (5 of 28, 2024)
- Total assets
- $369,326
- Primary geography
- Arizona (76% of itemized 2024 grant dollars)
- How to apply
- Contact Ross Patty McCallister. Full details ↓
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$369K
-1.9% YoY
Annual Giving
$451K
-13.1% YoY
Grant Count
28
-12.5% YoY
Avg Grant Size
$16K
-0.7% YoY
Under IRS private-foundation payout rules, Ross and Patty McCallister Foundation reported a distributable amount of $22K for 2024 — the minimum it must pay out in qualifying distributions.
Is Ross and Patty McCallister Foundation open to new grantees?
18%
first-time grantees, 2024
In 2024, 5 of 28 grantees (18%) were first-time recipients. First grants averaged $12K; repeat grants $17K. How we count
Medians: $10K first-time, $10K repeat.
- 75% of 2024 grantees were also funded in 2023. Method
- Giving held roughly steady from 2021 to 2024 (+6%). Method
- In 2024 it paid out well above its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Mission & Focus Areas
No separate mission statement is provided. The foundation’s stated award restrictions identify education, health and medical research and advancement, and community programs.
Its 2024 grants included support for organizations working in education, health, athletics, and food assistance. For example, the Arizona Center for Autism says its mission is to provide children with individual academic needs an education worthy of their potential. Minnie’s Food Pantry describes its mission as providing healthy meals and educational resources to people in need of supplemental food assistance. The BPS Foundation describes itself as a charitable sports organization supporting health- and athletics-focused public charities.
Grantmaking
In 2024, the foundation awarded 28 grants totaling $451,000. Awards ranged from $1,000 to $100,000, with a median grant of $10,000. It awarded 32 grants totaling $518,900 in 2023 and 29 grants totaling $395,400 in 2022.
The largest 2024 grants included $100,000 to The University of Arizona Foundation for program support, $76,000 to The Catholic University of America - Tucson for program support, and $50,000 to the Cystic Fibrosis Foundation - Arizona Chapter for cystic fibrosis research. Other notable awards were $25,000 each to the Arizona Center for Autism and BPS Foundation, $20,000 to Toys for Tots, and $16,000 to YMCA of Southern Arizona. The foundation also gave $15,000 to Minnie’s Food Pantry and $10,000 each to Flagstaff Family Food Center, Katy Christian Ministries, San Antonio Food Bank, and St Mary’s Food Bank.
How to Apply
Contact Ross Patty McCallister. No specific application form is required. Awards are restricted to organizations qualifying under Section 501(c)(3) that promote education, health and medical research and advancement, and community programs.
Ready to take the next step with Ross and Patty McCallister Foundation?
Geographic Focus
Where this funder awards grants
In 2024, Arizona recipients received 76% of grant dollars. Nevada and Texas each received 8%, Virginia received 4%, and New York received 2%.
Grant Distribution by State
Share of 2024 grant dollars across all 28 itemized grants.
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2024, annual grant giving ranged from $159K (2019) to $519K (2023). In 2024 it made 28 grants totaling $451K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was The University of Arizona Foundation ($100K). Together the top 10 received $347K.
Grant Size Distribution
141 grants across all recorded years
The most common grant size was under $50K: 132 grants of 141 (94%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| The University of Arizona Foundation Tucson, AZ | Program Support | $100,000 |
| The Catholic University of America - Tucson Tucson, AZ | Program Support | $76,000 |
| Cystic Fibrosis Foundation - Arizona Chapter Tucson, AZ | Cystic Fibrosis Research | $50,000 |
| Arizona Center for Autism Tucson, AZ | Program Support | $25,000 |
| BPS Foundation Las Vegas, NV | Program Support | $25,000 |
| Toys for Tots Triangle, VA | Program Support | $20,000 |
| YMCA of Southern Arizona Tucson, AZ | Program Support | $16,000 |
| Minnie's Food Pantry Plano, TX | Program Support | $15,000 |
| Flagstaff Family Food Center Flagstaff, AZ | Program Support | $10,000 |
| Katy Christian Ministries Katy, TX | Program Support | $10,000 |
Financial History
Multi-year comparison from IRS filings
| Filing year | Grant total | Number of grants |
|---|---|---|
| 2024 | $451,000 | 28 |
| 2023 | $518,900 | 32 |
| 2022 | $395,400 | 29 |
The foundation files Form 990-PF.
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $369,326 | $376,390 | $489,838 |
| Revenue | $451,830 | $411,784 | $397,487 |
| Expenses | $458,894 | $525,232 | $401,974 |
| Qualifying Distributions | $452,944 | $520,055 | $396,010 |
| Net Investment Income | $20,947 | $8,242 | $1,363 |
| Distributable Amount | $22,254 | $26,373 | $29,501 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS July 2, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS May 13, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS September 1, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS March 15, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 29, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS June 2, 2025)
- IRS filings on file for fiscal years 2019–2024
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Ross McCallister as director, president, and treasurer; Patty McCallister as director, vice-president, and secretary; and Amanda Tronsdal and Anna McCallister Nichols as directors.
Ross and Patty McCallister Foundation is led by Ross McCallister, Director, President & Treasurer on every filing since 2019; none of the 4 officers listed in 2024 report compensation.
Officers on the 2024 filing
Ross McCallister
Director, President & Treasurer
On filings since 2019
5 hrs/week
No compensation reported
Amanda Tronsdal
Director
On filings since 2019
2.5 hrs/week
No compensation reported
Anna McCallister Nichols
Director
On filings since 2019
2.5 hrs/week
No compensation reported
Patty McCallister
Director, Vice President & Secretary
On filings since 2019
3 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2019–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Contact
Application contact: Ross Patty Mccallister
Mailing address: 2910 N Swan Ste 204, Tucson, AZ 85712
Phone: (520) 790-8100
Frequently asked questions about Ross and Patty McCallister Foundation
How much does Ross and Patty McCallister Foundation give each year?
Ross and Patty McCallister Foundation gave $451K across 28 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $519K across 32 grants.
What is Ross and Patty McCallister Foundation's typical grant size?
Ross and Patty McCallister Foundation's median grant in 2024 was $10,000, and its average grant was $16,107, across 28 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from Ross and Patty McCallister Foundation that year got $12K on average.
Where does Ross and Patty McCallister Foundation give grants?
Ross and Patty McCallister Foundation gives mostly in Arizona: 76% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were Nevada (8%) and Texas (8%). The most frequent recipient cities were Tucson, AZ (14 grants), Phoenix, AZ (3 grants) and Las Vegas, NV (2 grants).
Does Ross and Patty McCallister Foundation give general operating support?
Not in 2024: none of the 28 grants with a stated purpose on Ross and Patty McCallister Foundation's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Program Support" (27 grants).
Who are Ross and Patty McCallister Foundation's largest grantees?
Ross and Patty McCallister Foundation's largest 2024 grantees include The University of Arizona Foundation ($100,000), The Catholic University of America - Tucson ($76,000) and Cystic Fibrosis Foundation - Arizona Chapter ($50,000), according to its 2024 IRS Form 990-PF. Together they received 50% of its itemized 2024 grant dollars.
How large is Ross and Patty McCallister Foundation?
Ross and Patty McCallister Foundation reported $369K in total assets on its 2024 IRS Form 990-PF. It paid out $453K in qualifying distributions that year, against a required minimum of $22K (roughly 5% of its investment assets).
What does Ross and Patty McCallister Foundation fund?
No separate mission statement is provided. The foundation’s stated award restrictions identify education, health and medical research and advancement, and community programs. See mission & focus areas ↑
How do I apply for a grant from Ross and Patty McCallister Foundation?
Contact Ross Patty McCallister. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Ross and Patty McCallister Foundation's EIN?
Ross and Patty McCallister Foundation's EIN (Employer Identification Number) is 45-2596526. IRS Form 990 filing data is available on this page for 2019–2024.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
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