C Stone Foundation Grants
Private foundation · San Antonio, TX · EIN 20-8134458 · IRS 990-PF filings through tax year 2025 · Invitation only: no unsolicited applications
C Stone Foundation is a private foundation based in San Antonio, TX (EIN 20-8134458). Its IRS Form 990-PF filings through tax year 2025 report $2.4M paid in 15 grants, with a median grant of $50K. The most recent filing reports total assets of $3.7M. It reports that it gives only to preselected organizations and does not accept unsolicited applications.
- Total grants paid
- $2.4M
- Grants reported
- 15
- Typical grant
- $50K
- Future commitments
- Not reported
- Total assets
- $3.7M
Future commitments are grants the foundation has reported but not yet paid.
How to apply
This foundation reports on its 990-PF that it only makes contributions to preselected organizations and does not accept unsolicited applications.
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Original filing text
Reported organization name: C Stone Foundation c/o Catherine S Campbell
Giving by tax year
Year-level totals across every reported grant in this profile — a summary, not a filter. The awards further down are the largest individual grants across all years, not each year's complete list.
Where C Stone Foundation gives
States of grant recipients reported on the foundation's 990-PF filings, by dollars received.
Largest reported grants
Historical awards reported to the IRS. These are examples of past giving, not open opportunities.
| Location | Purpose | |||
|---|---|---|---|---|
| The Families SCN2A Foundation | Gettysburg, PA | General Purpose | Tax year 20242024 | $984.4K |
| United Way of Lewis & Clark Area | Helena, MT | General Purpose | Tax year 20242024 | $500K |
| MCC Foundation Inc | San Antonio, TX | General Purpose | Tax year 20242024 | $300K |
| Dr Cathy Lord Longitudinal Study of Autism | Los Angeles, CA | General Purpose | Tax year 20242024 | $200K |
| Good Samaritan Ministries | Richmond, VA | General Purpose | Tax year 20242024 | $150K |
Showing 5 of the 15 largest grants (15 reported in all).
About this data
Figures are aggregated from C Stone Foundation's IRS Form 990-PF electronic filings (2 filings on file, most recent tax year 2025). Totals reflect grants the foundation reported as paid, and can lag the current year because foundations file annually and often on extension. Source: IRS 990-PF filing on ProPublica. Raw e-file archive (ZIP) — a large IRS yearly archive download.
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