Shamrock Foundation
Preselected recipients only
Shamrock Foundation is a private foundation in Austin, Texas. In tax year 2025 it gave $506,995 in 16 grants; the typical grant was $25,000 and the largest $100,000. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$506,995
- Number of grants16
- Typical grant$25,000
- Largest grant$100,000
- Assets$10.7 million
- New grantees25%
Giving in 2025 was up from $298,000 the year before.
25% of its 2025 grantees had not received a grant from it the year before, a mix of repeat and new grantees.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $477,923 | 13 | $7.3 million |
| 2024 | $298,000 | 13 | $8.7 million |
| 2025 | $506,995 | 16 | $10.7 million |
How to apply
Shamrock Foundation says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
Foundation website IRS filings on ProPublica
What Shamrock Foundation funds
Where it gives
Its grants went to recipients in 8 states, the most to Texas.
| State | Grants | Amount |
|---|---|---|
| Texas | 7 | $225,650 |
| New Jersey | 1 | $100,000 |
| New York | 3 | $85,000 |
| North Carolina | 1 | $35,000 |
| Colorado | 1 | $25,000 |
| Oregon | 1 | $25,000 |
| Washington | 1 | $10,000 |
| District of Columbia | 1 | $1,345 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Chamber of Mothers | To support the organization | $100,000 |
| Any Baby Can | To support the organization | $50,000 |
| Every Mother Counts | To support the organization | $50,000 |
| Partners in Parenting | To support the organization | $35,650 |
| Family Connects International | To support the organization | $35,000 |
| Saint Louise House | To support the organization | $35,000 |
| Giving Austin Labor Support (Gals) | To support the organization | $30,000 |
| A Better Balance | To support the organization | $25,000 |
| Austin Diaper Bank | To support the organization | $25,000 |
| Nurse Family Partnership | To support the organization | $25,000 |
| Nutured TX | To support the organization | $25,000 |
| Postpartum Support International | To support the organization | $25,000 |
| Trinity Episcopal School of Austin | To support the organization | $25,000 |
| Seattle Foundation | To support the organization | $10,000 |
| Women Moving Millons Inc | To support the organization | $10,000 |
| Exponent Philanthropy | To support the organization | $1,345 |
Officers and trustees
- Shelley M Mattingly
- Catharine O Edwardson
- John J Mattingly
Questions people ask
Does Shamrock Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does Shamrock Foundation give?
$506,995 in tax year 2025, across 16 grants, with a typical grant of $25,000.
Who runs Shamrock Foundation?
Its 2025 filing lists Shelley M Mattingly (President), Catharine O Edwardson (Director) and John J Mattingly (Director).
What does Shamrock Foundation fund?
Based on its grants, mainly international.