The Joe and Kim Boswell Foundation focuses its giving on local K–12 independent schools and Bay Area land conservation, with occasional support for community religious organizations and specialized disaster-resilience work. Although based in Missouri, the grant portfolio is concentrated in Marin County/San Francisco Bay Area recipients and shows repeated, targeted donations to the same institutions rather than broad national giving.
Relatively concentrated, mid-sized grants focused on a small set of local Bay Area organizations; repeats multiple grants to the same school beneficiaries rather than one-off, widely distributed gifts.
A repeated pattern of support for Marin County independent schools and Bay Area land conservation defines the Joe and Kim Boswell Foundation Inc. The largest recent grant in the record is $27,810 to Homestead Valley Land Trust in Mill Valley, alongside multi-year support for Marin Country Day School in Corte Madera and St John's Presbyterian Church in San Francisco. That mix shows a funder that backs a small set of local institutions over time rather than spreading gifts widely. The foundation’s giving reaches several adjacent parts of the Marin and San Francisco Bay Area civic landscape: education, conservation, faith-based community organizations, and a limited set of specialized nonprofits. Marin Country Day School appears in multiple years and at different amounts, including $16,600 in 2023, $12,000 in 2024, and $13,000 and $11,325 in 2025. Tam High Foundation also appears more than once, and St John's Presbyterian Church receives several gifts, including $21,000 in 2025 and $8,000 in 2024. Beyond those recurring local relationships, the portfolio includes targeted gifts to organizations such as Geohazards International and University of California San Francisco Foundation.
In education, the Joe and Kim Boswell Foundation Inc. supported Marin Country Day School with $13,000 in 2025 and $12,000 in 2024, and it gave $10,000 in 2025 and $10,000 in 2024 to Tam High Foundation. That same school-centered pattern appears in smaller gifts to Stanford University Graduate School of Business and Positive Coaching Alliance. Land conservation is another visible theme. The foundation gave $27,810 to Homestead Valley Land Trust in Mill Valley, a grant that stands out in the recent record. Its community and service-oriented gifts include $21,000 to St John's Presbyterian Church in San Francisco and $2,500 to Hamilton Families, also in San Francisco. For specialized public-safety and health-related work, it made a $10,000 grant to Geohazards International and a $10,000 gift to University of California San Francisco Foundation.
Typical grants are modest to mid-sized, with a p25 of $500, a median of $1,160, and a p75 of $10,000. The recent record shows repeated support to the same organizations across multiple years, including Marin Country Day School, Tam High Foundation, and St John's Presbyterian Church. That pattern suggests relationship-based giving rather than one-time awards. The foundation is organized as a private foundation, not a donor-advised fund, and it does not fund individuals or make program-related investments. No application process is described in the available data.
$67K
$417K
$146K
$71K
Most grants fall between $500 and $10K, with a median of $1K.
25th Percentile
$500
Median
$1K
75th Percentile
$10K
About 2% of grants go to recipients in CA.
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Notable grantees: Marin Country Day School, Homestead Valley Land Trust, Tam High Foundation, GeoHazards International, St. John's Presbyterian Church
The foundation gives most often in California, and every recent grant listed goes to a U.S. recipient. Marin County and the San Francisco Bay Area account for many of the named recipients, including Mill Valley, Corte Madera, San Francisco, Menlo Park, Oakland, San Rafael, Sausalito, Los Altos, and Los Angeles. Outside California, the record includes Durham, North Carolina; Hendersonville, North Carolina; Charles Town, West Virginia; and New York, New York. The recipient country distribution is entirely domestic.
Its recent grants cluster around independent K–12 schools in Marin County, Bay Area land conservation, community religious organizations, and a smaller set of disaster-resilience or geohazard-related nonprofits. Marin Country Day School, Tam High Foundation, Homestead Valley Land Trust, and St John's Presbyterian Church all appear in the recent record.
Yes. Marin Country Day School appears in 2023, 2024, and 2025; Tam High Foundation appears in 2024 and 2025; and St John's Presbyterian Church appears in 2023, 2024, and 2025. The pattern points to recurring relationships rather than isolated gifts.
The foundation’s grant-size distribution is relatively broad but centered on smaller gifts: p25 is $500, median is $1,160, and p75 is $10,000. That means many grants are modest, while a smaller number reach the five-figure range.
California is the top state by grant count, and the recent grants list is concentrated in Bay Area cities such as Mill Valley, Corte Madera, San Francisco, Menlo Park, Oakland, San Rafael, Sausalito, and Los Altos. All listed recipients are in the United States.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| ST JOHN'S PRESBYTERIAN CHURCH | SAN FRANCISCO, CA | $21,000 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| MARIN COUNTRY DAY SCHOOL | CORTE MADERA, CA | $13,000 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| UNIVERSITY OF CALIFORNIA SAN FRANCISCO FOUNDATION | SAN FRANCISCO, CA | $10,000 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| DUKE UNIVERSITY | DURHAM, NC | $7,500 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| BLUE RIDGE HUMANE SOCIETY | HENDERSONVILLE, NC | $3,800 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| HAMILTON FAMILIES | SAN FRANCISCO, CA | $2,500 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| STANFORD UNIVERSITY GRADUATE SCHOOL OF BUSINESS | STANFORD, CA | $2,500 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| THE OUTDOOR ART CLUB INC | MILL VALLEY, CA | $1,500 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| ADOPT A FAMILY OF MARIN | SAN RAFAEL, CA | $1,500 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| TAMALPAIS HIGH SCHOOL BOOSTERS CLUB | MILL VALLEY, CA | $1,000 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| SPECIAL OPERATIONS - FINDING KIDS | LOS ALTOS, CA | $1,000 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| MARIN ART & GARDEN | ROSS, CA | $500 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| CENTRAL HUMANE SOCIETY | COLUMBIA, MO | $500 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| THE AMERICAN HEART ASSOCIATION | DALLAS, TX | $500 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| HERO HUNT | PORTLAND, TN | $250 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| FRIENDS OF THE MILL VALLEY LIBRARY | MILL VALLEY, CA | $250 | 2026 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| MARIN COUNTRY DAY SCHOOL | CORTE MADERA, CA | $11,325 | 2025 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| TAM HIGH FOUNDATION | MILL VALLEY, CA | $10,000 | 2025 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| CALLISTO | SAN FRANCISCO, CA | $5,000 | 2025 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| POSITIVE COACHING ALLIANCE | OAKLAND, CA | $3,000 | 2025 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| HAMILTON FAMILIES | SAN FRANCISCO, CA | $2,500 | 2025 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| BUILD ON | CHARLES TOWN, WV | $500 | 2025 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| UNIVERSITY OF PENNSYLVANIA | PHILADELPHIA, PA | $500 | 2025 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| DUKE UNIVERSITY | DURHAM, NC | $500 | 2025 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| MARIN COUNTRY DAY SCHOOL | CORTE MADERA, CA | $12,000 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| GEOHAZARDS INTERNATIONAL | MENLO PARK, CA | $10,000 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| TAM HIGH FOUNDATION | MILL VALLEY, CA | $10,000 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| ST JOHN'S PRESBYTERIAN CHURCH | SAN FRANCISCO, CA | $8,000 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| MARIN HORSE COUNSEL | SAUSALITO, CA | $1,160 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| POSITIVE COACHING ALLIANCE | OAKLAND, CA | $1,000 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| BREAST CANCER PREVENTION PARTNERS | SAN FRANCISCO, CA | $1,000 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| MEMORIAL SLOAN KETTERING CANCER CENTER | NEW YORK, NY | $500 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| STANFORD UNIVERSITY | STANFORD, CA | $500 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| UNIVERSITY OF PENNSYLVANIA | PHILADELPHIA, PA | $500 | 2024 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| HOMESTEAD VALLEY LAND TRUST | MILL VALLEY, CA | $27,810 | 2023 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| MARIN COUNTRY DAY SCHOOL | CORTE MADERA, CA | $16,600 | 2023 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| HEART AND ARMOR | LOS ANGELES, CA | $2,000 | 2023 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| ST JOHN'S PRESBYTERIAN CHURCH | SAN FRANCISCO, CA | $2,000 | 2023 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| STANFORD UNIVERSITY | STANFORD, CA | $500 | 2023 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| STANFORD UNIVERSITY GRADUATE SCHOOL OF BUSINESS | STANFORD, CA | $500 | 2023 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
| UNIVERSITY OF PENNSYLVANIA | PHILADELPHIA, PA | $250 | 2023 | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. |
ST JOHN'S PRESBYTERIAN CHURCH
$21,000FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
HAMILTON FAMILIES
$2,500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
STANFORD UNIVERSITY GRADUATE SCHOOL OF BUSINESS
$2,500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
THE OUTDOOR ART CLUB INC
$1,500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
TAMALPAIS HIGH SCHOOL BOOSTERS CLUB
$1,000FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
SPECIAL OPERATIONS - FINDING KIDS
$1,000FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
MARIN ART & GARDEN
$500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
CENTRAL HUMANE SOCIETY
$500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
HERO HUNT
$250FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
FRIENDS OF THE MILL VALLEY LIBRARY
$250FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
BUILD ON
$500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
GEOHAZARDS INTERNATIONAL
$10,000FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
ST JOHN'S PRESBYTERIAN CHURCH
$8,000FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
MARIN HORSE COUNSEL
$1,160FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
MEMORIAL SLOAN KETTERING CANCER CENTER
$500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
STANFORD UNIVERSITY
$500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
HOMESTEAD VALLEY LAND TRUST
$27,810FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
HEART AND ARMOR
$2,000FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
ST JOHN'S PRESBYTERIAN CHURCH
$2,000FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
STANFORD UNIVERSITY
$500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.
STANFORD UNIVERSITY GRADUATE SCHOOL OF BUSINESS
$500FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION.