Mark and Carolyn Guidry Foundation
Invitation OnlyLos Altos, California · EIN 94-3185161 · Private foundation
Grants paid (2025)$609K
Organizations funded12
Typical grant$10,000
Total assets$5.5M
Half of its grants to organizations were between $3,000 and $30,000.
From the return
How to apply
On its return for tax year 2025 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
25% of grants went outside California.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Sierra Nevada Children's Museum | Truckee, CA | Charitable grant | $400,000 |
| San Jose State University | San Jose, CA | Charitbale grant | $75,000 |
| Chico State University | Chico, CA | Charitable grant | $40,000 |
| Raft | San Jose, CA | Charitable grant | $30,000 |
| Cal Poly San Luis Obispo | San Luis Obispo, CA | Charitable grant | $25,000 |
| Iowa State University | Ames, IA | Charitable grant | $10,000 |
| University of Washington | Seattle, WA | Charitable grant | $10,000 |
| California State University Long Beach | Long Beach, CA | Charitable grant | $6,000 |
| Lafourche Parish Schools | Thibodaux, LA | Charitable grant | $5,000 |
| Bitterwater Tully School | King City, CA | Charitable grant | $3,000 |
| King City High School | King City, CA | Charitable grant | $3,000 |
| Children's Discovery Museum | San Jose, CA | Charitable grant | $2,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $609,000 | 12 |
| 2024 | $538,000 | 10 |
| 2023 | $553,000 | 11 |
Sources
- IRS Form 990-PF, tax year 2025, filed Aug 27, 2026 - IRS e-file batch, object ID 202602399349100015
- IRS Tax Exempt Organization Search for EIN 94-3185161
- Profile updated Nov 6, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.