Mark and Carolyn Guidry Foundation
Preselected recipients only
Mark and Carolyn Guidry Foundation is a private foundation in Los Altos, California. In tax year 2025 it gave $609,000 in 12 grants; the typical grant was $10,000 and the largest $400,000. 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$609,000
- Number of grants12
- Typical grant$10,000
- Largest grant$400,000
- Assets$5.5 million
- New grantees17%
Giving in 2025 was up from $538,000 the year before.
17% of its 2025 grantees had not received a grant from it the year before, a mix of repeat and new grantees.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $553,000 | 11 | $5.0 million |
| 2024 | $538,000 | 10 | $5.3 million |
| 2025 | $609,000 | 12 | $5.5 million |
How to apply
Mark and Carolyn Guidry 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 Mark and Carolyn Guidry Foundation funds
Where it gives
Its grants went to recipients in 4 states, the most to California.
| State | Grants | Amount |
|---|---|---|
| California | 9 | $584,000 |
| Iowa | 1 | $10,000 |
| Washington | 1 | $10,000 |
| Louisiana | 1 | $5,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Sierra Nevada Children's Museum | Charitable grant | $400,000 |
| San Jose State University | Charitbale grant | $75,000 |
| Chico State University | Charitable grant | $40,000 |
| Raft | Charitable grant | $30,000 |
| Cal Poly San Luis Obispo | Charitable grant | $25,000 |
| Iowa State University | Charitable grant | $10,000 |
| University of Washington | Charitable grant | $10,000 |
| California State University Long Beach | Charitable grant | $6,000 |
| Lafourche Parish Schools | Charitable grant | $5,000 |
| Bitterwater Tully School | Charitable grant | $3,000 |
| King City High School | Charitable grant | $3,000 |
| Children's Discovery Museum | Charitable grant | $2,000 |
Officers and trustees
- Gayle G Dilley
- David Guidry
- Mike Guidry
Questions people ask
Does Mark and Carolyn Guidry Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does Mark and Carolyn Guidry Foundation give?
$609,000 in tax year 2025, across 12 grants, with a typical grant of $10,000.
Who runs Mark and Carolyn Guidry Foundation?
Its 2025 filing lists Gayle G Dilley (President & Secretary), David Guidry (Treasurer) and Mike Guidry (Vice President).
What does Mark and Carolyn Guidry Foundation fund?
Based on its grants, mainly arts and culture, youth programs and education.