The Texas State Capitol

Form 990-PFTax year 2025EIN 06-1720127

Shamrock Foundation

A private foundation in Austin, TX. Its return for tax year 2025 lists 16 grants and $506,995 paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $506,995

    Grants listed
    16
    Assets, end of year
    $7,348,531
  • Tax year 2024

    $298,000

    Grants listed
    13
    Assets, end of year
    $6,507,315
  • Tax year 2023

    $477,923

    Grants listed
    13
    Assets, end of year
    $5,589,716
  • Tax year 2022

    $138,650

    Grants listed
    7
    Assets, end of year
    $4,925,838
  • Tax year 2021

    $296,500

    Grants listed
    15
    Assets, end of year
    $3,957,841
  • Tax year 2020

    $239,000

    Grants listed
    18
    Assets, end of year
    $3,677,240
  • Tax year 2019

    $5,000

    Grants listed
    1
    Assets, end of year
    $3,746,056
  • Tax year 2018

    $5,000

    Grants listed
    5
    Assets, end of year
    $3,532,958

Grants paid in 2025

16 grants, largest first

As listed on the return.

  1. Chamber of MothersSpringfield, NJ

    To support the organization

    $100,000
  2. Any Baby CanAustin, TX

    To support the organization

    $50,000
  3. Every Mother CountsNew York, NY

    To support the organization

    $50,000
  4. Partners in ParentingAustin, TX

    To support the organization

    $35,650
  5. Family Connects InternationalDurham, NC

    To support the organization

    $35,000
  6. Saint Louise HouseAustin, TX

    To support the organization

    $35,000
  7. Giving Austin Labor Support (gals)Austin, TX

    To support the organization

    $30,000
  8. A Better BalanceNew York, NY

    To support the organization

    $25,000
  9. Austin Diaper BankAustin, TX

    To support the organization

    $25,000
  10. Nurse Family PartnershipDenver, CO

    To support the organization

    $25,000
  11. Nutured TXAustin, TX

    To support the organization

    $25,000
  12. Postpartum Support InternationalPortland, OR

    To support the organization

    $25,000
  13. Trinity Episcopal School of AustinAustin, TX

    To support the organization

    $25,000
  14. Seattle FoundationSeattle, WA

    To support the organization

    $10,000
  15. Women Moving Millons IncNew York, NY

    To support the organization

    $10,000
  16. Exponent PhilanthropyWashington, DC

    To support the organization

    $1,345

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Human services2 grants $125,00041% of the total
  2. Health3 grants $110,00036% of the total
  3. Public affairs1 grant $35,65012% of the total
  4. Social science1 grant $25,0008% of the total
  5. Philanthropy and grantmaking2 grants $11,3454% of the total

By State

Grants to organizations with a US address, latest year.

  1. Texas7 grants $225,650
  2. New Jersey1 grant $100,000
  3. New York3 grants $85,000
  4. North Carolina1 grant $35,000
  5. Colorado1 grant $25,000
  6. Oregon1 grant $25,000
  7. Washington1 grant $10,000
  8. District of Columbia1 grant $1,345

Officers, directors and trustees

3 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Shelley M MattinglyPRESIDENT Hours 5Pay $0
  • Catharine O EdwardsonDIRECTOR Hours 1Pay $0
  • John J MattinglyDIRECTOR Hours 1Pay $0

The return

More foundations

Similar foundations

Same main cause (human services), giving between a quarter and four times this foundation’s where possible, nearby first.

  1. Redman Foundation IncAustin, TX 41 grants Preselected only $600,675 giving
  2. Cactus Tree FoundationAustin, TX 10 grants Preselected only $381,618 giving
  3. Lindenmuth Family FoundationAustin, TX 23 grants Preselected only $376,000 giving
  4. The Bill M and Cecile Autrey Ham Charitable FoundationAustin, TX 29 grants Accepts applications $772,000 giving
  5. Ruth and Paul Connor FoundationAustin, TX 13 grants Accepts applications $330,000 giving