The Tam High Foundation is a parent-led independent 501(c)(3) fundraising organization that fosters the academic excellence and emotional and physical well-being of all Tam students by funding innovative programs, tools, and equitable educational opportunities in partnership with Tam High faculty and staff.
A defining feature of Tam High Foundation’s grantmaking is its direct support for Tamalpais High School and the Tamalpais Union High School District, with recent awards reaching six figures and flowing to school entities in Mill Valley and Larkspur. The foundation is a parent-led independent 501(c)(3) fundraising organization that supports academic excellence and the emotional and physical well-being of Tam students through programs, tools, and equitable educational opportunities. Recent grants show that it funds both large institutional needs and smaller school-based support, with the high school and district appearing repeatedly in the largest awards on file. Its work sits close to the school community: grants are reviewed twice a year and funded from community donations. The foundation also backs initiatives that connect classroom practice with student experience, including technology, guest teachers, equity, wellness, and other initiatives serving students. Recent recipients include Tamalpais High School and Tamalpais Union High School District, alongside school-affiliated groups such as Tam High PTSA and the Tam High School Association. The pattern points to a funder focused on strengthening the high school ecosystem through partnership with faculty, staff, and parent-led support structures.
In K-12 education, Tam High Foundation has funded Tamalpais High School for $27,095 in 2025 and $72,117 in 2024, reflecting direct support for school programming. The foundation also backs district-level needs: Tamalpais Union High School Dist received $510,821 in 2025 and $605,357 in 2024. Their support extends to school-affiliated organizations that help deliver student services and community engagement. Tam High PTSA received $7,500 in 2025 and another $7,500 in 2024, while the Tam High School Association received $24,600 in 2023. Another 2025 grant of $9,999 went to Safemodern Tuhsd Schools in Corte Madera. Across these awards, the foundation appears to fund both core educational operations and targeted initiatives tied to student experience.
Typical grant size ranges from a p25 of $10,381 to a median of $27,095 and a p75 of $291,469, showing a mix of modest school-based awards and much larger institutional grants. The recent record also suggests repeat support: Tamalpais High School, Tamalpais Union High School Dist, and Tam High PTSA each appear across multiple years. Tam High Foundation is a local funder, and its grants are entirely in California. It operates as a parent-led independent 501(c)(3) fundraising organization, and its general grants program is reviewed twice a year and funded from community donations. The business partner program accepts unsolicited participation as well.
$2.1M
$2.4M
$1.2M
$855K
Most grants fall between $10K and $291K, with a median of $27K.
25th Percentile
$10K
Median
$27K
75th Percentile
$291K
About 100% of grants go to recipients in CA.
Liz Harrell
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Tam High Foundation gives entirely within California, and 100% of grants on file go to recipients in the HQ state. The strongest concentration is around the Tamalpais school community in Marin County, with awards to Mill Valley and Larkspur appearing repeatedly. Mill Valley recipients include Tamalpais High School, Tam High PTSA, and the Tam High School Association, while Tamalpais Union High School Dist in Larkspur received the largest district-level awards. Corte Madera also appears in the recent grants list through Safemodern Tuhsd Schools.
The foundation funds academic enrichment, technology, guest teachers, equity, wellness, and other initiatives serving Tamalpais High School students. Its summary also identifies support for arts and visual and performing arts, STEM / technology, student wellness and mental health, and teacher professional support / classroom grants.
Its general grants are reviewed twice a year and funded from community donations. The foundation also runs a Business Partner Program with tiered sponsorship packages for local businesses, and that program accepts unsolicited participation.
The grant-size distribution shows a p25 of $10,381, a median of $27,095, and a p75 of $291,469. That spread indicates both smaller support grants and much larger institutional awards.
No. All 11 recent grants in the data went to US recipients, and 100% of grants were given to recipients in California.
Recent recipients include Tamalpais High School, Tamalpais Union High School Dist, Tam High PTSA, the Tam High School Association, and Safemodern Tuhsd Schools in Corte Madera.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| TAMALPAIS UNION HIGH SCHOOL DIST | LARKSPUR, CA | $510,821 | 2025 | — |
| TAMALPAIS HIGH SCHOOL | MILL VALLEY, CA | $27,095 | 2025 | — |
| SAFEMODERN TUHSD SCHOOLS | CORTE MADERA, CA | $9,999 | 2025 | — |
| TAM HIGH PTSA | MILL VALLEY, CA | $7,500 | 2025 | — |
| TAMALPAIS UNION HIGH SCHOOL DIST | LARKSPUR, CA | $605,357 | 2024 | — |
| TAMALPAIS HIGH SCHOOL | MILL VALLEY, CA | $72,117 | 2024 | — |
| TAM HIGH PTSA | MILL VALLEY, CA | $7,500 | 2024 | — |
| TAMALPAIS HIGH SCHOOL | MILL VALLEY, CA | $794,345 | 2023 | — |
| TAMALPAIS UNION HIGH SCHOOL DIST | LARKSPUR, CA | $38,890 | 2023 | — |
| Tamalpais High School Associa | MILL VALLEY, CA | $24,600 | 2023 | — |
| TAM HIGH PTSA | MILL VALLEY, CA | $10,763 | 2023 | — |
TAMALPAIS UNION HIGH SCHOOL DIST
$510,821TAMALPAIS HIGH SCHOOL
$27,095SAFEMODERN TUHSD SCHOOLS
$9,999TAM HIGH PTSA
$7,500TAMALPAIS UNION HIGH SCHOOL DIST
$605,357TAMALPAIS HIGH SCHOOL
$72,117TAM HIGH PTSA
$7,500TAMALPAIS HIGH SCHOOL
TAMALPAIS UNION HIGH SCHOOL DIST
$38,890Tamalpais High School Associa
$24,600TAM HIGH PTSA
$10,763