Funding search · EIN 680344239 · Ross, CA
Siebel Family Charitable Foundation
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 44
- grants reported
- $212,100
- total given
- 2022–2025
- filing years
- $2,500
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
What they fund
Full IRS filings ↗How this is builtReport an error
Funding pattern
What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.
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Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- Ross School Foundation2 grants · $28,000
- The Representation Project2 grants · $25,000
- Branson School1 grant · $20,000
- Clark Fork Coalition2 grants · $11,000
- Alpha Pi Alliance for the Preservation of Historic Places2 grants · $11,000
- St Anselm Church1 grant · $10,000
- Greenwich Country Day School2 grants · $10,000
- Conservation Int'L Fdn Development Dept1 grant · $10,000
- Fellowship of Christian Athletes1 grant · $10,000
- Bay Area Discovery Museum1 grant · $9,000
Giving over time
Grant history
All 44 reported grants, largest first.
- $25,000
Ross School Foundation · Ross, CA · 2025
Support
- $23,000
The Representation Project · Sacramento, CA · 2023
Support
- $20,000
Branson School · Ross, CA · 2025
Endowment fund
- $10,000
Conservation Int'L Fdn Development Dept · Arlington, VA · 2025
Support
- $10,000
St Anselm Church · Ross, CA · 2025
Restoration campaign
- $10,000
Fellowship of Christian Athletes · Kansas City, MO · 2023
Support
- $10,000
Alpha Pi Alliance for the Preservation of Historic Places · Verona, WI · 2022
Support
- $10,000
Clark Fork Coalition · Missoula, MT · 2022
Support
- $9,000
Bay Area Discovery Museum · Sausalito, CA · 2024
Support
- $7,050
Marinhealth Foundation · Greenbrae, CA · 2024
Support
- $5,000
Greenwich Country Day School · Greenwich, CT · 2025
Support
- $5,000
Stanford University · Stanford, CA · 2025
Support
- $5,000
Greenwich Country Day School · Greenwich, CT · 2024
Support
- $5,000
Play Like Robert Foundation · Hamilton, MT · 2023
Support
- $5,000
Brentwood School · Los Angeles, CA · 2022
Support
- $5,000
The Branson School · Ross, CA · 2022
Support
- $3,000
Treasure State Foundation · Helena, MT · 2025
Support
- $3,000
Treasure State Foundation · Helena, MT · 2024
Support
- $3,000
Jim Saunders Fund · Kailuakona, HI · 2023
Support
- $3,000
Ross School Foundation · Ross, CA · 2022
Support
- $3,000
Treasure State Foundation · Helena, MT · 2022
Support
- $2,500
Conservation Int'L Fdn · Arlington, VA · 2025
Support
- $2,500
Teller Wildlife Refuge · Corvallis, MT · 2022
Support
- $2,000
Oceanic Society · Ross, CA · 2025
Support
- $2,000
Raptors of the Rockies · Florence, MT · 2025
Support
- $2,000
Oceanic Society · Ross, CA · 2024
Support
- $2,000
Raptors of the Rockies · Florence, MT · 2024
Support
- $2,000
Brentwood School · Los Angeles, CA · 2022
Support
- $2,000
Raptors of the Rockies · Florence, MT · 2022
Support
- $2,000
The Representation Project · Sacramento, CA · 2022
Support
- $1,250
Duke University Alumni & Development Records · Durham, NC · 2024
Support
- $1,000
Alpha Pi Alliance for the Preservation of Historic Places · Verona, WI · 2025
Support
- $1,000
Clark Fork Coalition · Missoula, MT · 2025
Support
- $1,000
Teller Wildlife Refuge · Corvallis, MT · 2025
Support
- $1,000
Grace Science Foundation · Menlo Park, CA · 2024
Support
- $1,000
Jim Saunders Fund · Kailuakona, HI · 2024
Support
- $1,000
The Maven Project · San Francisco, CA · 2024
Support
- $1,000
Grace Science Foundation · Menlo Park, CA · 2023
Support
- $1,000
Oceanic Society · Ross, CA · 2023
Support
- $1,000
The Maven Project · San Francisco, CA · 2023
Support
- $1,000
Bitter Root Land Trust · Hamilton, MT · 2022
Support
- $1,000
Grace Science Foundation · Menlo Park, CA · 2022
Support
- $1,000
The Maven Project · San Francisco, CA · 2022
Support
- $800
San Francisco Museum of Modern Art · San Francisco, CA · 2023
Support
Who else funds this kind of work
Same state
- Silicon Valley Community Foundation10,471 grants · $10.10B
- Tides Foundation9,402 grants · $1.86B
- UCLA Foundation276 grants · $1.75B
Similar purposes
- The San Francisco Foundation6,369 grants · $813.9M
- Miramar Charitable Foundation625 grants · $750.0M
- Marin Community Foundation5,238 grants · $990.8M
Similar grant size
- Enterprise Holdings Foundation30,880 grants · $360.4M
- State Employees Credit Union Foundation7,131 grants · $63.0M
- Publix Super Markets Charities6,333 grants · $108.7M
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.

