Grants paid by Siebel Family Charitable Foundation C/O Kenneth F Siebel
EIN 68-0344239 · Ross, CA · Form 990-PF, Part XV · NTEE T99Z
Siebel Family Charitable Foundation C/O Kenneth F Siebel of Ross, CA (EIN 68-0344239) reported 83 grants paid totaling $359,185 to 39 recipients in tax years 2018–2025, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$359,185
83 grants
Recipients
39
distinct organizations
Tax years
2018–2025
7 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2018 | 13 | $17,730 | — |
| 2020 | 11 | $55,655 | — |
| 2021 | 15 | $73,700 | — |
| 2022 | 13 | $47,500 | — |
| 2023 | 8 | $44,800 | — |
| 2024 | 10 | $32,300 | — |
| 2025 | 13 | $87,500 | — |
Top recipients
The 39 recipients receiving the most from Siebel Family Charitable Foundation C/O Kenneth F Siebel, by grants paid, out of 39 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| The Branson School 94-0338330 | B | Ross, CA | 5 | $45,000 | 2025 |
| Ross School Foundation 94-2838271 | B | Ross, CA | 5 | $34,000 | 2025 |
| Ucsf Foundation | U | San Francisco, CA | 2 | $30,000 | 2021 |
| The Representation Project 45-1611066 | B | Sacramento, CA | 2 | $25,000 | 2023 |
| Uc Davis Foundation - Manetti Shrem Museum of Art | U | Davis, CA | 1 | $23,500 | 2021 |
| University of Montana Foundation 81-0362989 | B | Missoula, MT | 2 | $12,500 | 2020 |
| Conservation Int'l Fdn Development Dept 52-1497470 | D | Arlington, VA | 2 | $12,500 | 2025 |
| Raptors of the Rockies 81-0522082 | B | Florence, MT | 6 | $11,050 | 2025 |
| Clark Fork Coalition 36-3428665 | B | Missoula, MT | 2 | $11,000 | 2025 |
| Alpha Pi Alliance for the Preservation of Historic Places Inc 39-1677467 | C | Verona, WI | 2 | $11,000 | 2025 |
| Fellowship of Christian Athletes 44-0610626 | B | Kansas City, MO | 1 | $10,000 | 2023 |
| Greenwich Country Day School 06-0646657 | C | Greenwich, CT | 2 | $10,000 | 2025 |
| Francis E Mcgovern Foundation 85-0562258 | C | Ross, CA | 1 | $10,000 | 2020 |
| St Anselm Church | U | Ross, CA | 1 | $10,000 | 2025 |
| Treasure State Foundation 87-2256533 | B | Helena, MT | 3 | $9,000 | 2025 |
| Bay Area Discovery Museum 68-0033227 | B | Sausalito, CA | 1 | $9,000 | 2024 |
| Duke University Alumni & Development Records | U | Durhan, NC | 2 | $7,905 | 2024 |
| Marinhealth Foundation | U | Greenbrae, CA | 1 | $7,050 | 2024 |
| Brentwood School 95-1426236 | B | Los Angeles, CA | 2 | $7,000 | 2022 |
| Oceanic Society | U | Ross, CA | 5 | $7,000 | 2025 |
| Grace Science Foundation 46-5727883 | C | Menlo Park, CA | 6 | $6,000 | 2024 |
| Marin Health Foundation | U | Greenbrae, CA | 1 | $5,000 | 2021 |
| Play Like Robert Foundation 87-3053991 | B | Hamilton, MT | 1 | $5,000 | 2023 |
| Stanford University 26-4580872 | C | Stanford, CA | 1 | $5,000 | 2025 |
| California Academy of Sciences 94-1156258 | B | San Francisco, CA | 2 | $5,000 | 2021 |
| Jim Saunders Fund 86-2233233 | B | Kailuakona, HI | 2 | $4,000 | 2024 |
| The Maven Project 46-5370676 | C | San Francisco, CA | 4 | $4,000 | 2024 |
| Montana Land Reliance 81-0369262 | C | Helena, MT | 2 | $4,000 | 2021 |
| Teller Wildlife Refuge | U | Corvallis, MT | 2 | $3,500 | 2025 |
| San Francisco Museum of Modern Art 94-1156300 | B | San Francisco, CA | 2 | $3,150 | 2023 |
| Bitter Root Land Trust 31-1595967 | B | Hamilton, MT | 3 | $3,000 | 2022 |
| Darby Rodeo Association 30-0857937 | B | Darby, MT | 1 | $2,500 | 2021 |
| Ravalli County Economic Development Auth 81-0515595 | C | Hamilton, MT | 2 | $2,000 | 2018 |
| Bitter Root Humane Association 81-0351709 | B | Hamilton, MT | 1 | $2,000 | 2018 |
| Marin Community Foundation | U | Novato, CA | 1 | $1,000 | 2018 |
| California Fire Foundation 68-0118991 | B | Sacramento, CA | 1 | $1,000 | 2018 |
| Friends of Abaco | U | Boca Raton, FL | 1 | $300 | 2018 |
| The Heritage Foundation 23-7327730 | B | Washington, DC | 1 | $200 | 2021 |
| Italian Cultural Societysacramento 94-2777430 | D | Sacramento, CA | 1 | $30 | 2018 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 83 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | Ross School Foundation Ross, CA | B | $25,000 | paid | SUPPORT | 202621289349101317 |
| 2025 | Branson School Ross, CA | B | $20,000 | paid | ENDOWMENT FUND | 202621289349101317 |
| 2025 | Conservation Int'l Fdn Development Dept Arlington, VA | D | $10,000 | paid | SUPPORT | 202621289349101317 |
| 2025 | St Anselm Church Ross, CA | U | $10,000 | paid | RESTORATION CAMPAIGN | 202621289349101317 |
| 2025 | Greenwich Country Day School Greenwich, CT | C | $5,000 | paid | SUPPORT | 202621289349101317 |
| 2025 | Stanford University Stanford, CA | C | $5,000 | paid | SUPPORT | 202621289349101317 |
| 2025 | Treasure State Foundation Helena, MT | B | $3,000 | paid | SUPPORT | 202621289349101317 |
| 2025 | Conservation Int'l Fdn Arlington, VA | B | $2,500 | paid | SUPPORT | 202621289349101317 |
| 2025 | Oceanic Society Ross, CA | U | $2,000 | paid | SUPPORT | 202621289349101317 |
| 2025 | Raptors of the Rockies Florence, MT | B | $2,000 | paid | SUPPORT | 202621289349101317 |
| 2025 | Alpha Pi Alliance for the Preservation of Historic Places Inc Verona, WI | C | $1,000 | paid | SUPPORT | 202621289349101317 |
| 2025 | Teller Wildlife Refuge Corvallis, MT | U | $1,000 | paid | SUPPORT | 202621289349101317 |
| 2025 | Clark Fork Coalition Missoula, MT | B | $1,000 | paid | SUPPORT | 202621289349101317 |
| 2024 | Bay Area Discovery Museum Sausalito, CA | B | $9,000 | paid | SUPPORT | 202531349349103623 |
| 2024 | Marinhealth Foundation Greenbrae, CA | U | $7,050 | paid | SUPPORT | 202531349349103623 |
| 2024 | Greenwich Country Day School Greenwich, CT | C | $5,000 | paid | SUPPORT | 202531349349103623 |
| 2024 | Treasure State Foundation Helena, MT | B | $3,000 | paid | SUPPORT | 202531349349103623 |
| 2024 | Oceanic Society Ross, CA | U | $2,000 | paid | SUPPORT | 202531349349103623 |
| 2024 | Raptors of the Rockies Florence, MT | B | $2,000 | paid | SUPPORT | 202531349349103623 |
| 2024 | Duke University Alumni & Development Records Durham, NC | U | $1,250 | paid | SUPPORT | 202531349349103623 |
| 2024 | The Maven Project San Francisco, CA | C | $1,000 | paid | SUPPORT | 202531349349103623 |
| 2024 | Jim Saunders Fund Kailuakona, HI | B | $1,000 | paid | SUPPORT | 202531349349103623 |
| 2024 | Grace Science Foundation Menlo Park, CA | C | $1,000 | paid | SUPPORT | 202531349349103623 |
| 2023 | The Representation Project Sacramento, CA | B | $23,000 | paid | SUPPORT | 202430939349100828 |
| 2023 | Fellowship of Christian Athletes Kansas City, MO | B | $10,000 | paid | SUPPORT | 202430939349100828 |
| 2023 | Play Like Robert Foundation Hamilton, MT | B | $5,000 | paid | SUPPORT | 202430939349100828 |
| 2023 | Jim Saunders Fund Kailuakona, HI | B | $3,000 | paid | SUPPORT | 202430939349100828 |
| 2023 | Oceanic Society Ross, CA | U | $1,000 | paid | SUPPORT | 202430939349100828 |
| 2023 | Grace Science Foundation Menlo Park, CA | C | $1,000 | paid | SUPPORT | 202430939349100828 |
| 2023 | The Maven Project San Francisco, CA | C | $1,000 | paid | SUPPORT | 202430939349100828 |
| 2023 | San Francisco Museum of Modern Art San Francisco, CA | B | $800 | paid | SUPPORT | 202430939349100828 |
| 2022 | Clark Fork Coalition Missoula, MT | B | $10,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | Alpha Pi Alliance for the Preservation of Historic Places Inc Verona, WI | C | $10,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | Brentwood School Los Angeles, CA | B | $5,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | The Branson School Ross, CA | B | $5,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | Ross School Foundation Ross, CA | B | $3,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | Treasure State Foundation Helena, MT | B | $3,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | Teller Wildlife Refuge Corvallis, MT | U | $2,500 | paid | SUPPORT | 202331529349101403 |
| 2022 | Raptors of the Rockies Florence, MT | B | $2,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | Brentwood School Los Angeles, CA | B | $2,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | The Representation Project Sacramento, CA | B | $2,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | The Maven Project San Francisco, CA | C | $1,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | Grace Science Foundation Menlo Park, CA | C | $1,000 | paid | SUPPORT | 202331529349101403 |
| 2022 | Bitter Root Land Trust Hamilton, MT | B | $1,000 | paid | SUPPORT | 202331529349101403 |
| 2021 | Uc Davis Foundation - Manetti Shrem Museum of Art Davis, CA | U | $23,500 | paid | SUPPORT | 202232089349100213 |
| 2021 | Ucsf Foundation San Francisco, CA | U | $15,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | The Branson School Ross, CA | B | $10,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | Marin Health Foundation Greenbrae, CA | U | $5,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | The Branson School Ross, CA | B | $5,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | Darby Rodeo Association Darby, MT | B | $2,500 | paid | SUPPORT | 202232089349100213 |
| 2021 | California Academy of Sciences San Francisco, CA | B | $2,500 | paid | SUPPORT | 202232089349100213 |
| 2021 | Raptors of the Rockies Florence, MT | B | $2,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | Ross School Foundation Ross, CA | B | $2,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | Montana Land Reliance Helena, MT | C | $2,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | Bitter Root Land Trust Hamilton, MT | B | $1,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | The Maven Project San Francisco, CA | B | $1,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | Grace Science Foundation Menlo Park, CA | C | $1,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | Oceanic Society Ross, CA | U | $1,000 | paid | SUPPORT | 202232089349100213 |
| 2021 | The Heritage Foundation Washington, DC | B | $200 | paid | SUPPORT | 202232089349100213 |
| 2020 | Ucsf Foundation San Francisco, CA | U | $15,000 | paid | SUPPORT | 202142999349100039 |
| 2020 | University of Montana Foundation Missoula, MT | B | $10,000 | paid | WILDLIFE BIOLOGY STUDY | 202142999349100039 |
| 2020 | Francis E Mcgovern Foundation Ross, CA | C | $10,000 | paid | SUPPORT | 202142999349100039 |
| 2020 | Duke University Alumni & Development Records Durhan, NC | U | $6,655 | paid | SUPPORT | 202142999349100039 |
| 2020 | The Branson School Ross, CA | B | $5,000 | paid | SUPPORT | 202142999349100039 |
| 2020 | Raptors of the Rockies Florence, MT | B | $2,000 | paid | SUPPORT | 202142999349100039 |
| 2020 | Ross School Foundation Ross, CA | B | $2,000 | paid | SUPPORT | 202142999349100039 |
| 2020 | Montana Land Reliance Helena, MT | C | $2,000 | paid | SUPPORT | 202142999349100039 |
| 2020 | Grace Science Foundation Menlo Park, CA | C | $1,000 | paid | SUPPORT | 202142999349100039 |
| 2020 | Oceanic Society Ross, CA | U | $1,000 | paid | SUPPORT | 202142999349100039 |
| 2020 | Bitter Root Land Trust Hamilton, MT | B | $1,000 | paid | SUPPORT | 202142999349100039 |
| 2018 | University of Montana Foundation Missoula, MT | B | $2,500 | paid | SUPPORT | 201901489349100465 |
| 2018 | California Academy of Sciences San Francisco, CA | B | $2,500 | paid | SUPPORT | 201901489349100465 |
| 2018 | San Francisco Museum of Modern Art San Francisco, CA | B | $2,350 | paid | SUPPORT | 201901489349100465 |
| 2018 | Bitter Root Humane Association Hamilton, MT | B | $2,000 | paid | SUPPORT | 201901489349100465 |
| 2018 | Ross School Foundation Ross, CA | B | $2,000 | paid | SUPPORT | 201901489349100465 |
| 2018 | Raptors of the Rockies Florence, MT | B | $1,050 | paid | SUPPORT | 201901489349100465 |
| 2018 | Ravalli County Economic Development Auth Hamilton, MT | C | $1,000 | paid | "ALONG THE BANKS" SCULPTURE PROJECT | 201901489349100465 |
| 2018 | California Fire Foundation Sacramento, CA | B | $1,000 | paid | SUPPORT | 201901489349100465 |
| 2018 | Grace Science Foundation Menlo Park, CA | C | $1,000 | paid | SUPPORT | 201901489349100465 |
| 2018 | Ravalli County Economic Development Auth Hamilton, MT | C | $1,000 | paid | "ALONG THE BANKS" SCULPTURE PROJECT | 201901489349100465 |
| 2018 | Marin Community Foundation Novato, CA | U | $1,000 | paid | MT. TAMALPAIS WATERSHED FUND | 201901489349100465 |
| 2018 | Friends of Abaco Boca Raton, FL | U | $300 | paid | SUPPORT | 201901489349100465 |
| 2018 | Italian Cultural Societysacramento Sacramento, CA | D | $30 | paid | SUPPORT | 201901489349100465 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2025 | 2025-12-31 | not stated | 2025v4.1 | 202621289349101317 |
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.1 | 202531349349103623 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.0 | 202430939349100828 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202331529349101403 |
| 990PF | 2021 | 2021-12-31 | not stated | 2021v4.2 | 202232089349100213 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.1 | 202142999349100039 |
| 990PF | 2018 | 2018-12-31 | not stated | 2018v3.1 | 201901489349100465 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/680344239.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.