Siebel Family Charitable Foundation

EIN 68-0344239 · CA · NTEE T99Z

Invitation only Typical grant ~$3K Funds in CA, VA, MT +2
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Giving Profile

In 2025, Siebel Family Charitable Foundation based in CA paid 13 grants totaling $87.5K to 13 organizations across 5 states. Individual grants ranged from $1K to $25K, with a median of $3K. Its largest recipients included ROSS SCHOOL FOUNDATION, BRANSON SCHOOL, and CONSERVATION INT'L FDN DEVELOPMENT DEPT. The foundation does not accept unsolicited applications — giving is by invitation only.

Foundation at a Glance

Total assets
$568,345
Giving (latest yr)
$87,500
Filing year
2025
Itemized grants
13
Median grant
$3K
Recipients
13
States reached
5
Officers/trustees
6
Unsolicited applications
No — invitation only

Where the Money Goes

Top recipients

  • Ross School Foundation$25,000
  • Branson School$20,000
  • Conservation Int'l Fdn Development Dept$10,000
  • St Anselm Church$10,000
  • Greenwich Country Day School$5,000

Where grants went

  • California$62,000 · 5 grants
  • Virginia$12,500 · 2 grants
  • Montana$7,000 · 4 grants
  • Connecticut$5,000 · 1 grant
  • Wisconsin$1,000 · 1 grant

Grants Paid (13)

Ross School Foundation
Ross, CA
Support
$25,000
Branson School
Ross, CA
Endowment Fund
$20,000
Conservation Int'l Fdn Development Dept
Arlington, VA
Support
$10,000
St Anselm Church
Ross, CA
Restoration Campaign
$10,000
Greenwich Country Day School
Greenwich, CT
Support
$5,000
Stanford University
Stanford, CA
Support
$5,000
Treasure State Foundation
Helena, MT
Support
$3,000
Conservation Int'l Fdn
Arlington, VA
Support
$2,500
Oceanic Society
Ross, CA
Support
$2,000
Raptors of the Rockies
Florence, MT
Support
$2,000
Alpha Pi Alliance for the Preservation of Historic Places Inc
Verona, WI
Support
$1,000
Teller Wildlife Refuge
Corvallis, MT
Support
$1,000

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FAQFrequently Asked Questions

No. Siebel Family Charitable Foundation does not accept unsolicited applications — its grantmaking is by invitation only. Cultivating a relationship or securing an introduction is typically required.

In its most recent filing, Siebel Family Charitable Foundation reported 13 itemized grants totaling $87.5K. Individual grants ranged from $1K to $25K (median $3K).

Recent recipients include ROSS SCHOOL FOUNDATION, BRANSON SCHOOL, CONSERVATION INT'L FDN DEVELOPMENT DEPT, among 13 organizations in total. The full grant list is on this page.

Siebel Family Charitable Foundation is a private foundation based in California, per its IRS 990-PF filing.

Siebel Family Charitable Foundation gives by invitation only, so there is no open application. Officer and address details from its 990-PF are the best starting point for an introduction.

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