Ross and Patty Mccallister Foundation
The Ross and Patty McCallister Foundation is a private foundation based in Tucson, Arizona. Established in 2012, it operates as a 501(c)(3) organization with a focus on supporting causes aligned with the philanthropic interests of its founders.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
—
Annual Giving
$451K
-13.1% YoY
Grant Count
28
-12.5% YoY
Avg Grant Size
$16K
-0.7% YoY
Mission & Focus Areas
The foundation's primary funding areas include:
- Education
- Philanthropy, Voluntarism & Grantmaking
- Human Services
The foundation's work reflects the personal values and experiences of its founders, particularly their commitment to supporting organizations addressing health challenges that have affected their family.
Grantmaking
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Geographic Focus
Where this funder awards grants
The foundation primarily supports organizations in:
- Arizona
- Texas
- New York
Grant Distribution by State
Cities
Financial History
Multi-year comparison from IRS filings
Total Assets: $369,326
Total Giving: $451,000 (most recent filing)
Year Formed: 2012
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | — | — | — |
| Revenue | — | — | — |
| Expenses | — | — | — |
| Qualifying Distributions | — | — | — |
| Net Investment Income | — | — | — |
| Distributable Amount | — | — | — |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
141 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Leadership team and compensation from IRS filings
Founders & Principals:
Ross McCallister — Principal of MC Companies. Ross graduated from New Mexico State University in 1975 and began his career as President of a savings and loan association in Gallup, New Mexico from 1976 to 1983. He relocated to Tucson in 1983 to work for a real estate development firm, and in 1985 founded The McCallister Company to build, invest, and manage apartment communities. In 2001, he partnered with Ken McElroy to form MC Companies, which has built over 5,000 units and currently owns 8,000 units across 10 cities in Arizona, Texas, and Oklahoma. Ross serves on the Board of Directors of the Cystic Fibrosis Foundation and is a member of the Southern Arizona Leadership Council.
Patty McCallister — Co-founder and philanthropic partner. Patty met Ross in 1971 as a college freshman at New Mexico State University and they married in 1974. Together they have two daughters, Amanda and Anna, and three grandchildren.
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| ROSS MCCALLISTER | DIRECTOR/PRESIDENT/TREASURER | 5 | — |
| PATTY MCCALLISTER | DIRECTOR/VICE-PRESIDENT/SECRETARY | 3 | — |
| AMANDA TRONSDAL | DIRECTOR | 2.5 | — |
| ANNA MCCALLISTER NICHOLS | DIRECTOR | 2.5 | — |
Recent News & Activity
Recent developments and announcements
In October 2023, Ross and Patty McCallister were honored by the Cystic Fibrosis Foundation, Arizona Chapter, at their annual gala events in Tucson and Phoenix with the prestigious "Breath of Life" award for their philanthropy and support of Cystic Fibrosis. The events raised $459,000 towards CF efforts.
MC Companies\u2019 Owners Receive Accolades From the Cystic Fibrosis FoundationThe McCallisters' focus on cystic fibrosis began in 2007 when their granddaughter Jolene was diagnosed with the disease at six months old, followed by another granddaughter Cecilia's diagnosis at birth in 2012. This personal connection motivated them to direct their fundraising efforts toward the Cystic Fibrosis Foundation.
MC Companies\u2019 Owners Receive Accolades From the Cystic Fibrosis FoundationAs part of their broader community service commitment, MC Companies established the "Sharing the Good Life Foundation" to further the company's core value of "Be Giving," reflecting the McCallisters' dedication to philanthropy alongside their business operations.
Subject Areas
Focus areas based on grantmaking activity
Related Funders
Similar funders by location and focus area
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Assets
—
Grants
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Total Given
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Total Given
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Assets
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Total Given
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Sulphur Springs Valley Electric
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Assets
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Total Given
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Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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