Castaing Family Foundation
Preselected recipients only
Castaing Family Foundation is a private foundation in Scottsdale, Arizona. In tax year 2025 it gave $53,000 in 8 grants; the typical grant was $3,000 and the largest $20,000. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$53,000
- Number of grants8
- Typical grant$3,000
- Largest grant$20,000
- Assets$492,856
- New grantees13%
Giving in 2025 was down from $79,000 the year before.
13% of its 2025 grantees had not received a grant from it the year before, so most of its money goes to organizations it already funds.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $0 | 0 | $536,725 |
| 2024 | $79,000 | 10 | $490,843 |
| 2025 | $53,000 | 8 | $492,856 |
How to apply
Castaing Family Foundation says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
What Castaing Family Foundation funds
Where it gives
Its grants went to recipients in 5 states, the most to Michigan.
| State | Grants | Amount |
|---|---|---|
| Michigan | 4 | $26,500 |
| Minnesota | 1 | $20,000 |
| California | 1 | $5,000 |
| Arizona | 1 | $1,000 |
| District of Columbia | 1 | $500 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Mayo Clinic | General Fund | $20,000 |
| Michigan Science Center | General Fund | $20,000 |
| Detroit Symphony Orchestra | General Fund | $5,000 |
| Play Works | General Fund | $5,000 |
| American Red Cross | General Fund | $1,000 |
| Friends of Public Radio AZ | General Fund | $1,000 |
| Detroit Inst of Arts | General Fund | $500 |
| National Park Foundations | General Fund | $500 |
Officers and trustees
- Eva J Wirthlin
- Maria A Castaing
- Brigitte M Addimando
- Marta M Castaing
- Laura M Castaing
Questions people ask
Does Castaing Family Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does Castaing Family Foundation give?
$53,000 in tax year 2025, across 8 grants, with a typical grant of $3,000.
Who runs Castaing Family Foundation?
Its 2025 filing lists Eva J Wirthlin (Trustee), Maria A Castaing (Trustee President), Brigitte M Addimando (Trustee) and Marta M Castaing (Trustee Secretary) among 5 officers and trustees.
What does Castaing Family Foundation fund?
Based on its grants, mainly arts and culture.