Overview
The Siebel Family Charitable Foundation, based in Ross, California, is a philanthropic organization with a focus on education, environment, and philanthropy. The foundation has assets totaling $498,626, with expenses of $50,425 and revenue of $19,235. It supports initiatives in various cities across the United States, including Corvallis, Darby, Davis, Florence, Greenbrae, Hamilton, Helena, Kailua-Kona, Kansas City, Los Angeles, Menlo Park, Missoula, Ross, Sacramento, San Francisco, Verona, and Washington. The foundation operates in several states such as California, District of Columbia, Hawaii, Missouri, Montana, and Wisconsin. Key personnel include Kenneth F. Siebel as President, Judy A. Siebel as Treasurer, and directors Jennifer Siebel Newsom, Brooke S. Mitchell, Melissa A. Siebel Schiller, and Jessica Siebel Gruss, all of whom work without compensation.
Focus Areas
Geographic Focus
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Financials
in 2024, compared to $528,816 in 2023
8 grants awarded in 2024
Of total expenses go to programs
Grants
| Purpose | Location | |||
|---|---|---|---|---|
| $23,500 | UC DAVIS FOUNDATION - MANETTI SHREM MUSEUM OF ART | SUPPORT | ONE SHIELDS AVENUE DAVIS, CA US | 2022 |
| $23,000 | THE REPRESENTATION PROJECT | SUPPORT | 5716 FOLSOM BLVD 155 SACRAMENTO, CA US | 2024 |
| $15,000 | UCSF FOUNDATION | SUPPORT | PO BOX 45339 SAN FRANCISCO, CA US | 2022 |
| $10,000 | THE BRANSON SCHOOL | SUPPORT | PO BOX 887 ROSS, CA US | 2022 |
| $10,000 | ALPHA PI ALLIANCE FOR THE PRESERVATION OF HISTORIC PLACES INC | SUPPORT | 1254 SCENIC RIDGE DRIVE VERONA, WI US | 2023 |
| $10,000 | CLARK FORK COALITION | SUPPORT | PO BOX 7593 MISSOULA, MT US | 2023 |
| $10,000 | FELLOWSHIP OF CHRISTIAN ATHLETES | SUPPORT | 8701 LEEDS ROAD KANSAS CITY, MO US | 2024 |
| $5,000 | MARIN HEALTH FOUNDATION | SUPPORT | 100B DRAKES LANDING ROAD SUITE 255 GREENBRAE, CA US | 2022 |
| $5,000 | THE BRANSON SCHOOL | SUPPORT | PO BOX 887 ROSS, CA US | 2022 |
| $5,000 | THE BRANSON SCHOOL | SUPPORT | PO BOX 887 ROSS, CA US | 2023 |
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People
Compensation data from most recent available 990 forms
| Title | |||
|---|---|---|---|
KFS
KENNETH F SIEBEL
| PRESIDENT | $0 | 2022 |
JAS
JUDY A SIEBEL
| TREASURER | $0 | 2022 |
JSN
JENNIFER SIEBEL NEWSOM
| DIRECTOR | $0 | 2022 |
BSM
BROOKE S MITCHELL
| DIRECTOR | $0 | 2022 |
MASS
MELISSA A SIEBEL SCHILLER
| DIRECTOR | $0 | 2022 |
JSG
JESSICA SIEBEL GRUSS
| DIRECTOR | $0 | 2022 |
KFS
KENNETH F SIEBEL
| PRESIDENT | $0 | 2023 |
JAS
JUDY A SIEBEL
| TREASURER | $0 | 2023 |
JSN
JENNIFER SIEBEL NEWSOM
| DIRECTOR | $0 | 2023 |
BSM
BROOKE S MITCHELL
| DIRECTOR | $0 | 2023 |
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Financial data sourced from IRS 990 forms via ProPublica Nonprofit Explorer
View on ProPublica Nonprofit ExplorerLast updated on August 25, 2025