C Stone Foundation
C Stone Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in SAN ANTONIO, TX. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $1.6M in total assets. In 2024, it awarded 7 grants totaling $2.2M. Net investment income was $1.9M.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$1.6M
-40.5% YoY
Annual Giving
$2.2M
+716.1% YoY
Grant Count
7
-30.0% YoY
Avg Grant Size
$321K
+1065.9% YoY
Under IRS private-foundation payout rules, C Stone Foundation reported a distributable amount of $185K for 2024 — the minimum it must pay out in qualifying distributions.
About C Stone Foundation
Based on IRS filings
C Stone Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in SAN ANTONIO, TX. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $1.6M in total assets. In 2024, it awarded 7 grants totaling $2.2M. Net investment income was $1.9M.
Focus Areas
Ready to take the next step with C Stone Foundation?
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Cities
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $1,641,179 | $2,756,028 | $3,047,165 |
| Revenue | $1,959,560 | $10,123 | $-10,528 |
| Expenses | $2,263,837 | $301,260 | $337,826 |
| Qualifying Distributions | $2,244,390 | $275,000 | $315,000 |
| Net Investment Income | $1,939,085 | $21,500 | $27,553 |
| Distributable Amount | $185,420 | $233,751 | $240,756 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 7 recipients in 2024
Grant Size Distribution
44 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include The Families SCN2A Foundation ($984,390), United Way of Lewis & Clark Area ($500,000), MCC Foundation Inc ($300,000).
| Recipient | Purpose | Amount |
|---|---|---|
| Singing Waters Montana Billings, MT | General Purpose | $100,000 |
| Plymouth Congregational Church Mineapolis, MN | General Purpose | $10,000 |
| Good Samaritan Ministries Richmond, VA | General Purpose | $150,000 |
| United Way of Lewis & Clark Area Helena, MT | General Purpose | $500,000 |
| MCC Foundation Inc San Antonio, TX | General Purpose | $300,000 |
| The Families SCN2A Foundation Gettysburg, PA | General Purpose | $984,390 |
| Dr Cathy Lord Longitudinal Study of Autism Los Angeles, CA | General Purpose | $200,000 |
Leadership & Key People
Officers and directors from IRS filings
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Catherine S Campbell | Trustee | — | — |
| Ruth C Austin | Trustee | — | — |
| Eloise D Austin | Trustee | — | — |
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What is C Stone Foundation?
C Stone Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in SAN ANTONIO, TX. It holds $1.6M in total assets as of 2024.
How large is C Stone Foundation?
As of 2024, C Stone Foundation holds $1.6M in total assets with $2.0M in annual revenue. It awarded 7 grants totaling $2.2M in 2024.
Where does C Stone Foundation operate?
C Stone Foundation has awarded grants in California, Minnesota, Montana, Pennsylvania, Texas, Virginia, Washington.
What size grants does C Stone Foundation award?
In 2024, C Stone Foundation awarded 7 grants totaling $2.2M — an average of about $321K per grant, based on its IRS Form 990 filings.
How much is C Stone Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, C Stone Foundation reported a distributable amount of $185K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is C Stone Foundation's EIN?
C Stone Foundation's EIN (Employer Identification Number) is 20-8134458. IRS Form 990 filing data is available on this page for 2020–2024.
Explore Open Grants
Browse active grant opportunities in C Stone Foundation's focus areas in our free grants database
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Data last updated April 2026. Sourced from IRS Form 990-PF filings.