The Tosa Foundation is a private foundation established in December 1992 and based in Portola Valley, California. Founded by John P. and Tashia Morgridge, the foundation supports a broad range of charitable causes including education, the environment, medical research, the arts, and human services.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$391.6M
-18.6% YoY
Annual Giving
$129.8M
+46.0% YoY
Grant Count
116
-21.6% YoY
Avg Grant Size
$1.1M
+86.3% YoY
Mission & Focus Areas
The foundation's primary mission is to provide giving support across five key areas:
- Education — with particular emphasis on instructional technology integration in K-12 schools
- Environment
- Medical Research
- The Arts
- Human Services
The foundation established the Wisconsin Technology Initiative (WTI) in December 2010 to make 21st century instructional technology more accessible and affordable for Wisconsin school districts. WTI provides grants to K-12 schools and educational facilities committed to effectively integrating instructional technology into learning environments. Grant recipients are expected to provide annual reports and share best practices with peers across the state.
Grantmaking
The foundation operates on a preselected-only basis, meaning it makes contributions exclusively to organizations it has already identified and selected. The foundation does not accept unsolicited grant applications.
Grant Range
$5,000
How to Apply
**
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Geographic Focus
Where this funder awards grants
The foundation's grantmaking focuses primarily on:
- California
- Wisconsin
- New Hampshire
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
As of 2024:
- Total Assets: $391,617,057
- Total Revenue: $52,610,043
- Total Expenses: $130,852,488
- Total Liabilities: $944,000
- Number of Employees: 0
Tax Status:
- EIN: 94-3165171
- Tax-exempt since: December 1992
- Classification: 501(c)(3) Private Independent Foundation
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $391,617,057 | $481,360,708 | $505,364,370 |
| Revenue | $52,610,043 | $57,041,598 | $45,134,010 |
| Expenses | $130,852,488 | $89,832,883 | $47,905,491 |
| Qualifying Distributions | $103,037,420 | $89,088,210 | $46,304,896 |
| Net Investment Income | $52,524,927 | $53,723,579 | $63,993,863 |
| Distributable Amount | $19,284,086 | $23,516,965 | $26,531,003 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
250 grants across all recorded years
Giving History
Grant recipients and amounts by year
No grants recorded for .
Leadership & Key People
Leadership team and compensation from IRS filings
Board & Key Personnel:
| Name | Title | Hours/Week | Compensation |
|---|---|---|---|
| Tashia F. Morgridge | Director/President | 20 | $0 |
| John P. Morgridge | Director/CFO | 20 | $0 |
| John D. Morgridge | Director | 2 | $30,000 |
Founder Background: John P. Morgridge is the former chairman of Cisco Systems, a multinational communications technology corporation. He serves on several corporate and charity boards of directors, including the Nature Conservancy and the Wisconsin Alumni Research Foundation. Both John and Tashia Morgridge have committed to The Giving Pledge, pledging to give away at least half of their wealth to philanthropy.
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| TASHIA F MORGRIDGE | DIRECTOR/PRES | 20 | — |
| JOHN P MORGRIDGE | DIRECTOR/CFO | 20 | — |
| JOHN D MORGRIDGE | DIRECTOR | 2 | $30,000 |
Contact Information
Address: 3130 Alpine Road, PMB 705, Suite 288 Portola Valley, CA 94028-7549
Telephone: 650-851-6922
Subject Areas
Focus areas based on grantmaking activity
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Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.
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