Mark And Carolyn Guidry Foundation | Foundation Profile

GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like Mark And Carolyn Guidry Foundation. Data shown is extracted from Form 990-PF filings.

EIN: 94-3185161

Foundation Overview

Based in Los Altos, CA, Mark And Carolyn Guidry Foundation has awarded 124 grants totaling $3,330,307 to organizations in Mississippi, Louisiana and 6 other states across the US. Individual grants range from $500 to $400,000, with a median award of $5,000.

Latest Tax Year
2024
Total Giving (all years)
$3,330,307
Total Assets
$5,315,374
Median Grant (all grants)
$5,000

Latest Form 990-PF Snapshot

Total Grants
10
Median Grant
$7,500
% Median Grant Decline
-25% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: February 2026

Foundation Intelligence

Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies

New Applicant Friendliness
Closed Network: N/A

0 of 10 recipients (0%) were new grantees. Foundation maintains tight relationships with established partners. New applicants rarely succeed without insider connections.

Geographic Focus
California

60% of grants are awarded in California, with additional funding distributed across 7 other locations. The foundation balances regional focus with broader geographic diversity. Within California, funding concentrates in San Jose (32%), King City (20%), Truckee (18%).

Funding Trajectory
+9%

Stable funding levels with 9% change over 8 years indicate consistent grant-making capacity and predictable philanthropic resources. This stability suggests reliable ongoing funding opportunities.

Program Areas
General Purposes + 2 others

Diversified giving across multiple program areas with primary emphasis on general purposes (72%). This broad approach suggests openness to various causes and innovative cross-sector solutions.

Where is The Money Going?

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Grants & Funding

Analyzing past grantees provides valuable insights into Mark And Carolyn Guidry Foundation's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.

Name Amount Location Purpose Year
Bitterwater Tully School $3,000 King City, CA, US Charitable Grant 2024
Cal Poly San Luis Obispo $25,000 San Luis Obispo, CA, US Charitable Grant 2024
Children's Discovery Museum $2,000 San Jose, CA, US Charitable Grant 2024
Iowa State University $10,000 Ames, IA, US Charitable Grant 2024
King City High School $3,000 King City, CA, US Charitable Grant 2024
Lafourche Parish Schools $5,000 Thibodaux, LA, US Charitable Grant 2024
Raft $5,000 San Jose, CA, US Charitable Grant 2024
San Jose State University $75,000 San Jose, CA, US Charitbale Grant 2024
Sierra Nevada Children's Museum $400,000 Truckee, CA, US Charitable Grant 2024
University Of Washington $10,000 Seattle, WA, US Charitable Grant 2024
Bitterwater Tully School $3,000 King City, CA, US Charitable Grant 2023
Cal Poly San Luis Obispo $15,000 San Luis Obispo, CA, US Charitable Grant 2023
Chico State University $25,000 Chico, CA, US Charitable Grant 2023
Children's Discovery Museum $2,000 San Jose, CA, US Charitable Grant 2023
Iowa State University $10,000 Ames, IA, US Charitable Grant 2023
King City High School $3,000 King City, CA, US Charitable Grant 2023
Lafourche Parish Schools $5,000 Thibodaux, LA, US Charitable Grant 2023
Raft $5,000 San Jose, CA, US Charitable Grant 2023
San Jose State University $75,000 San Jose, CA, US Charitbale Grant 2023
Sierra Nevada Children's Museum $400,000 Truckee, CA, US Charitable Grant 2023
University Of Washington $10,000 Seattle, WA, US Charitable Grant 2023
Bitterwater Tully School $3,000 King City, CA, US Charitable Grant 2023
Cal Poly San Luis Obispo $15,000 San Luis Obispo, CA, US Charitable Grant 2023
Chico State University $25,000 Chico, CA, US Charitable Grant 2023
Children's Discovery Museum $2,000 San Jose, CA, US Charitable Grant 2023
Iowa State University $10,000 Ames, IA, US Charitable Grant 2023
King City High School $3,000 King City, CA, US Charitable Grant 2023
Lafourche Parish Schools $5,000 Thibodaux, LA, US Charitable Grant 2023
Raft $5,000 San Jose, CA, US Charitable Grant 2023
San Jose State University $75,000 San Jose, CA, US Charitbale Grant 2023
Sierra Nevada Children's Museum $400,000 Truckee, CA, US Charitable Grant 2023
University Of Washington $10,000 Seattle, WA, US Charitable Grant 2023
Hattiesburg High School $3,000 Hattiesburg, MS, US Libr. Bks, Comp. Software & Hardware 2021
Lafourche Parish Schools $10,000 Thibodaux, LA, US Charitable Grants 2021
Iowa State University $25,000 Ames, IA, US Dean's Discretionary Fund 2021
San Jose State University $75,000 San Jose, CA, US Charitbale Grant 2021
Chico State University $25,000 Chico, CA, US Charitable Grant 2021
Bitterwater Tully School $6,000 King City, CA, US Library Books, Computer & Software 2021
King City High School $3,000 King City, CA, US Library Books 2021
Sierra Nevada Children's Museum $55,000 Truckee, CA, US Operational Expenses 2021
Tahoe Truckee Excellence In Educati $2,000 Truckee, CA, US Library Books 2021
Las Vegas Natural History Museum $5,000 North Las Vegas, NV, US Operational Support 2021
Cleveland Clinic -keep Memory Alive $10,000 Las Vegas, NV, US Charitable Grant 2021
Raft $5,000 San Jose, CA, US Operation 2021
Cal Poly $15,000 San Luis Obispo, CA, US Operation 2021
Children's Discovery Museum $2,000 San Jose, CA, US Charitable Grant 2021
Portland Public School $8,807 Portland, OR, US Library Books, Computer, & Software 2021
Ucla Foundation $6,000 Los Angeles, CA, US Charitable Grant 2021
Hattiesburg High School $3,000 Hattiesburg, MS, US Libr. Bks, Comp. Software & Hardware 2020
Lafourche Parish Schools $5,000 Thibodaux, LA, US Charitable Grants 2020
University Of Washington $25,000 Seattle, WA, US Engin. Dean's Fd, Ct.r. For Engin. 2020
Iowa State University $25,000 Ames, IA, US Dean's Discretionary Fund 2020
San Jose State University $75,000 San Jose, CA, US Charitbale Grant 2020
Chico State University $25,000 Chico, CA, US Charitable Grant 2020
King City High School $3,000 King City, CA, US Library Books 2020
Sierra Nevada Children's Museum $1,000 Truckee, CA, US Operational Expenses 2020
Tahoe Truckee Excellence In Educati $2,000 Truckee, CA, US Library Books 2020
Las Vegas Natural History Museum $5,000 North Las Vegas, NV, US Operational Support 2020
Cleveland Clinic -keep Memory Alive $10,000 Las Vegas, NV, US Charitable Grant 2020
Raft $5,000 San Jose, CA, US Operation 2020
Cal Poly $25,000 San Luis Obispo, CA, US Operation 2020
Children's Discovery Museum $2,000 San Jose, CA, US Charitable Grant 2020
Acacia Fraternity Foundation $27,000 Indianapolis, IN, US Support The Edu. Object Of The Aff 2018
Bitterwater Tully Ptf $4,000 King City, CA, US Classroom Enhancement & Books 2018
Children's Discovery Museum $2,000 San Jose, CA, US Charitable Grants 2018
Iowa State University $25,000 Ames, IA, US Dean's Discretionary Fund 2018
Sjsu $75,000 San Jose, CA, US Guidry Fam. Prof'ship & Dean Discre 2018
Sierra Nevada Children's Museum $1,000 Truckee, CA, US Operational Expenses 2018
Saratoga Educational Foundation $500 Saratoga, CA, US Charitable Grants 2018
Uw $25,000 Seattle, WA, US Engin. Dean's Fd, Ct.r. For Engin. 2018
Hattiesburg High School $3,000 Hattiesburg, MS, US Lib. Bks, Comp. Software & Hardware 2018
Tahoe Truckee Usd $2,000 Truckee, CA, US Library Books 2018
Unlv Engineering $12,000 Las Vegas, NV, US Operational Support 2018
Las Vegas Natural History Museum $1,000 North Las Vegas, NV, US Operational Support 2018
Unlv Arts $12,000 Las Vegas, NV, US Operational Support 2018
King City High School $4,000 King City, CA, US Library Books 2018
L V Children's Discovery Museum $1,000 Las Vegas, NV, US Operational Support 2018
Saratoga Music Boosters $1,000 Saratoga, CA, US Operational Support 2018
Saratoga High School Foundation $1,500 Saratoga, CA, US Operational Support 2018
Lafourche Parish School $5,000 Thibodaux, LA, US Charitable Grants 2018
Big And Digital $5,000 Las Vegas, NV, US Operation 2018
Cal Poly $3,500 San Luis Obispo, CA, US Operation 2018
Raft $5,000 San Jose, CA, US Operation 2018
Acacia Fraternity Foundation $27,000 Indianapolis, IN, US Support The Edu. Object Of The Aff 2017
Bitterwater Tully Ptf $3,000 King City, CA, US Classroom Enhancement & Books 2017
Children's Discovery Museum $2,000 San Jose, CA, US Charitable Grants 2017
Iowa State University $25,000 Ames, IA, US Dean's Discretionary Fund 2017
Resource Area For Teachers $5,000 San Jose, CA, US Charitable Grants 2017
Sjsu $387,500 San Jose, CA, US Guidry Fam. Prof'ship & Dean Discre 2017
Sierra Nevada Children's Museum $1,000 Truckee, CA, US Operational Expenses 2017
Saratoga Educational Foundation $500 Saratoga, CA, US Charitable Grants 2017
Uw $25,000 Seattle, WA, US Engin. Dean's Fd, Ct.r. For Engin. 2017
Hattiesburg High School $3,000 Hattiesburg, MS, US Lib. Bks, Comp. Software & Hardware 2017
Tahoe Truckee Usd $2,000 Truckee, CA, US Library Books 2017
Unlv Engineering $8,000 Las Vegas, NV, US Operational Support 2017
Las Vegas Natural History Museum $1,000 North Las Vegas, NV, US Operational Support 2017
Unlv Arts $8,000 Las Vegas, NV, US Operational Support 2017
King City High School $3,000 King City, CA, US Library Books 2017
L V Children's Discovery Museum $1,000 Las Vegas, NV, US Operational Support 2017
Sea Lab $1,000 Los Angeles, CA, US Operational Support 2017
Saratoga Music Boosters $1,000 Saratoga, CA, US Operational Support 2017
Saratoga High School Foundation $1,500 Saratoga, CA, US Operational Support 2017
Lafourche Parish School $5,000 Thibodaux, LA, US Charitable Grants 2017
Acacia Fraternity Foundation $27,000 Indianapolis, IN, US Support The Edu. Object Of The Aff 2016
Bitterwater Tully Ptf $4,000 King City, CA, US Classroom Enhancement & Books 2016
Children's Discovery Museum $2,000 San Jose, CA, US Charitable Grants 2016
Iowa State University $25,000 Ames, IA, US Dean's Discretionary Fund 2016
Resource Area For Teachers $5,000 San Jose, CA, US Charitable Grants 2016
Sjsu $367,500 San Jose, CA, US Guidry Fam. Prof'ship & Dean Discre 2016
Sierra Nevada Children's Museum $1,000 Truckee, CA, US Operational Expenses 2016
Saratoga Educational Foundation $500 Saratoga, CA, US Charitable Grants 2016
Uw $25,000 Seattle, WA, US Engin. Dean's Fd, Ct.r. For Engin. 2016
Hattiesburg High School $3,000 Hattiesburg, MS, US Lib. Bks, Comp. Software & Hardware 2016
Children's Museum Of Bainbridge Isd $1,000 Bainbridge Island, WA, US Charitable Grants 2016
Tahoe Truckee Usd $2,000 Truckee, CA, US Library Books 2016
Unlv Engineering $8,000 Las Vegas, NV, US Operational Support 2016
Las Vegas Natural History Museum $1,000 North Las Vegas, NV, US Operational Support 2016
Unlv Arts $8,000 Las Vegas, NV, US Operational Support 2016
King City High School $4,000 King City, CA, US Library Books 2016
L V Children's Discovery Museum $1,000 Las Vegas, NV, US Operational Support 2016
Sea Lab $1,000 Los Angeles, CA, US Operational Support 2016
Saratoga Music Boosters $1,000 Saratoga, CA, US Operational Support 2016
Saratoga High School Foundation $1,500 Saratoga, CA, US Operational Support 2016
Lafourche Parish School $5,000 Thibodaux, LA, US Charitable Grants 2016

Foundations Similar to Mark And Carolyn Guidry Foundation

Discover 5 foundations with comparable assets ($5,286,599-$5,344,713), similar grant patterns, and geographic focus in CA that may also align with your organization's funding needs and grant seeking strategy.

Foundation Name Total Assets Typical Grant Size Service Area Similarity Match

EIN: 84-3817114 | 4 grants awarded
$5,321,004
(≈ Similar)
$5,000
median grant
Playa Del Rey, CA
Same state
100%
Excellent match

EIN: 95-4016663 | 45 grants awarded
$5,327,937
(≈ Similar)
$10,000
median grant
Pacoima, CA
Same state
100%
Excellent match

EIN: 82-6693579 | 132 grants awarded
$5,334,644
(≈ Similar)
$3,000
median grant
Oakland, CA
Same state
100%
Excellent match

EIN: 80-0316636 | 16 grants awarded
$5,286,599
(≈ Similar)
$10,000
median grant
San Rafael, CA
Same state
100%
Excellent match

EIN: 87-0778040 | 223 grants awarded
$5,344,713
(≈ Similar)
$8,500
median grant
Los Angeles, CA
Same state
100%
Excellent match

Contact Information

Official contact details for Mark And Carolyn Guidry Foundation as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.

EIN 94-3185161
Website N/A
Address 44 MARVIN AVE Los Altos, CA 94022-3708

Key People (3)

Board members, trustees, and key staff who oversee Mark And Carolyn Guidry Foundation's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.

President & Secretary Gayle G Dilley
Treasurer David Guidry
Vice President Mike Guidry

Forms 990-PF

IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.

Form 990-PF Research Tips
  • Review Part XV for detailed grant recipient information and funding purposes
  • Check Part I for total assets, annual giving amounts, and payout requirements
  • Examine Part VIII for key personnel compensation and board structure
  • Look for trends across multiple years to understand giving patterns

About This Foundation Profile

This comprehensive foundation profile for Mark And Carolyn Guidry Foundation is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.

Data Sources & Accuracy

All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.

Research Applications

Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.

Data Currency: Last updated February 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.