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TOSA FOUNDATION

Portola valley, CA Tax ID: 94-3165171

The TOSA Foundation is a California-based philanthropic organization with $481 million in assets, supporting numerous cities and states across the U.S., led by Tashia F. Morgridge and John P. Morgridge.

About TOSA FOUNDATION

Comprehensive foundation profile based on the most recent IRS Form 990 filing

The TOSA Foundation, based in Portola Valley, California, is a philanthropic organization with assets totaling approximately $481 million. In the most recent fiscal year, the foundation reported expenses of about $89.8 million and revenue of approximately $57 million. The foundation supports a wide range of cities across the United States, including major urban centers like New York, Los Angeles, and Chicago, as well as smaller communities. It operates in numerous states, from California to New York, and from Texas to Wisconsin. The foundation is led by Tashia F. Morgridge, who serves as Director and President, and John P. Morgridge, who is the Director and CFO. John D. Morgridge also serves as a Director. The foundation does not list specific subject areas of focus on its public profile.

Focus Areas

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Geographic Focus

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Key Statistics
Total Assets $481.4M
Total Awarded This Year $88.9M
Average Grant Size $3K
Total Grants (Previous Year) 34,451
Open to New Applicants
% New Applicants Funded
Contact Information
Portola valley, CA
Geographic Funding Distribution

Financials

Total Assets
$481.4M

+2.6% from previous year

Annual Grants
$88.9M

148 grants awarded in 2024

Expense Ratio
157.5%

Of total revenue spent on programs

Annual Grant Distribution
Revenue vs Expenses
Assets Over Time

Grants

Grant Awards
PurposeLocation
$30,000,000STANFORD UNIVERSITYSEE STATEMENT 15Stanford, CA, US2022
$25,003,646UNIVERSITY OF WISCONSIN FOUNDATIONEDUCATIONMadison, WI, US2024
$25,000,000UNIVERSITY OF WISCONSIN FOUNDATIONEDUCATIONMadison, WI, US2022
$25,000,000UNIVERSITY OF WISCONSIN FOUNDATIONEDUCATIONMadison, WI, US2023
$25,000,000FUND FOR WISCONSIN SCHOLARSEDUCATIONMadison, WI, US2024
$25,000,000MORGRIDGE INSTITUTE FOR RESEARCHMEDICALMadison, WI, US2024
$16,689,154UNIVERSITY OF WISCONSIN FOUNDATIONEDUCATIONMadison, WI, US2022
$11,995,153FIDELITY CHARITABLE GIFT FUND - TAUPOSEE STATEMENT 15Cincinnati, OH, US2022
$5,000,000UNIVERSITY OF WISCONSIN FOUNDATIONEDUCATIONMadison, WI, US2022
$5,000,000MORGRIDGE INSTITUTE FOR RESEARCHMEDICALMadison, WI, US2022

People

Leadership & Staff

Compensation data from most recent available 990 forms

TF

TASHIA F MORGRIDGE

DIRECTOR/PRES

$0 2024
JP

JOHN P MORGRIDGE

DIRECTOR/CFO

$0 2024
JD

JOHN D MORGRIDGE

DIRECTOR

$30,000 2024
Showing 3 of 3 leadership and staff members

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Financial data sourced from IRS 990 forms via ProPublica Nonprofit Explorer

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Last updated on August 25, 2025

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