Funding search · EIN 943185161 · Los Altos, CA
Mark and Carolyn Guidry Foundation
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 21
- grants reported
- $1.1M
- total given
- 2023–2024
- filing years
- $10,000
- median grant
Based on grants this organization reported to the IRS for tax years 2023–2024. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
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Funding pattern
What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.
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Grant history
All 21 reported grants, largest first.
- $400,000
Sierra Nevada Children'S Museum · Truckee, CA · 2024
Charitable grant
- $400,000
Sierra Nevada Children'S Museum · Truckee, CA · 2023
Charitable grant
- $75,000
San Jose State University · San Jose, CA · 2024
Charitbale grant
- $75,000
San Jose State University · San Jose, CA · 2023
Charitbale grant
- $25,000
Cal Poly San Luis Obispo · San Luis Obispo, CA · 2024
Charitable grant
- $25,000
Chico State University · Chico, CA · 2023
Charitable grant
- $15,000
Cal Poly San Luis Obispo · San Luis Obispo, CA · 2023
Charitable grant
- $10,000
Iowa State University · Ames, IA · 2024
Charitable grant
- $10,000
University of Washington · Seattle, WA · 2024
Charitable grant
- $10,000
Iowa State University · Ames, IA · 2023
Charitable grant
- $10,000
University of Washington · Seattle, WA · 2023
Charitable grant
- $5,000
Lafourche Parish Schools · Thibodaux, LA · 2024
Charitable grant
- $5,000
Raft · San Jose, CA · 2024
Charitable grant
- $5,000
Lafourche Parish Schools · Thibodaux, LA · 2023
Charitable grant
- $5,000
Raft · San Jose, CA · 2023
Charitable grant
- $3,000
Bitterwater Tully School · King City, CA · 2024
Charitable grant
- $3,000
King City High School · King City, CA · 2024
Charitable grant
- $3,000
Bitterwater Tully School · King City, CA · 2023
Charitable grant
- $3,000
King City High School · King City, CA · 2023
Charitable grant
- $2,000
Children'S Discovery Museum · San Jose, CA · 2024
Charitable grant
- $2,000
Children'S Discovery Museum · San Jose, CA · 2023
Charitable grant
Who else funds this kind of work
Same state
- Silicon Valley Community Foundation10,471 grants · $10.10B
- Tides Foundation9,402 grants · $1.86B
- UCLA Foundation276 grants · $1.75B
Similar grant size
- The Ayco Charitable Foundation15,303 grants · $2.05B
- Paypal Charitable Giving Fund32,081 grants · $1.40B
- Seattle Foundation14,012 grants · $457.3M
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.

