Muriel F Siebert Foundation Inc
Private foundation · Southampton, NY · EIN 13-6266367 · reported 2023–2025
320grants reported
$10Kmedian award
$5,000lower quartile
$516smallest grant
$4.4Mtotal paid
19states reached
3years giving
This foundation funds faith-based organizations. 9 of its 320 reported grants went to churches, ministries or other religious organizations, $238K in total. That is what it paid, not what it says in a policy.
Gives every year. This foundation reported grants in 2023, 2024, 2025. A funder that shows up year after year is worth a letter even if this year is a no.
Where to write
155 Hill St Apt 7
Southampton, NY 11968-5320
Address as registered with the IRS. Most foundations this size have no website and no application form, which is not a dead end: a short letter to this address is the whole process, and almost nobody sends one.
Who they funded
| Recipient and stated purpose | Where | Amount |
|---|---|---|
| Lewis Clark College | Portland, OR | $165,000 |
| Trustees of Columbia University Department of Cardiology | New York, NY | $150,000 |
| Women's Forum of New York Inc | New York, NY | $150,000 |
| University Health Foundation | San Antonio, TX | $115,000 |
| Trustees of Columbia University GENERAL SUPPORT AND SCHOLARSHIP FUNDS | New York, NY | $112,000 |
| Lewis & Clark College | Portland, OR | $100,000 |
| Lewis & Clark College | Portland, OR | $75,000 |
| New York Presbyterian Hospital CARDIOLOGY FELLOWSHIP | New York, NY | $75,000 |
| Texas AM San Antonio Foundation | San Antonio, TX | $70,000 |
| Girl Scouts of Southwest Texas | San Antonio, TX | $60,000 |
| Arts in Play | Portland, ME | $55,000 |
| After-School All-Stars | Los Angeles, CA | $50,000 |
| New York-Presbyterian Fund Inc Department of Cardiology | New York, NY | $50,000 |
| After School All Stars | Los Angeles, CA | $50,000 |
| Champions Scholarship Fund | Malta, IL | $47,500 |
| Harper's Chapel Ministries | San Antonio, TX | $45,000 |
| Jeremy Reyes | San Antonio, TX | $41,300 |
| Eleanor Roosevelt Val-Kill P'ship | Hyde Park, NY | $40,000 |
| San Antonio Little Theater Inc San Pedro Playhouse | San Antonio, TX | $40,000 |
| Eleanor Roosevelt Val Kill Partnership | Hyde Park, NY | $40,000 |
| Arboretum San Antonio | San Antonio, TX | $37,500 |
| Briscoe Western Art Museum | San Antonio, TX | $37,500 |
| University of New Hampshire Fdn | Durham, NH | $35,000 |
| Old Spanish Trail Cultural Corridor | San Antonio, TX | $32,600 |
| She's the First | New York, NY | $30,000 |
| Classic Theatre of San Antonio | San Antonio, TX | $30,000 |
| Alamo Colleges Foundation | San Antonio, TX | $25,000 |
| Anti Defamation League | New York, NY | $25,000 |
| Ballet San Antonio | San Antonio, TX | $25,000 |
| Bexar County Family Justice Ctr Fdn | San Antonio, TX | $25,000 |
| Cops Metro Foundation | San Antonio, TX | $25,000 |
| Musical Bridges Around the World | San Antonio, TX | $25,000 |
| NYC Outward Bound Center Inc | Long Island City, NY | $25,000 |
| Riverside Church in the City of NY | New York, NY | $25,000 |
| Schwarzman Animal Medical Center | New York, NY | $25,000 |
| Soldiers to Sidelines | Lewes, DE | $25,000 |
| Special Reach Inc | San Antonio, TX | $25,000 |
| Trustees of Columbia University Colins Wagner Scholarship Fund | New York, NY | $25,000 |
| Adl Southwest | Dallas, TX | $25,000 |
| Alamo Colleges Foundation | San Antonio, TX | $25,000 |
| JA Worldwide | Boston, MA | $25,000 |
| Nys Outward Bound Schools | Long Island City, NY | $25,000 |
| Adl Southwest | Dallas, TX | $25,000 |
| Alamo Colleges Foundation | San Antonio, TX | $25,000 |
| Arboretum San Antonio | San Antonio, TX | $25,000 |
| Arts in Play | Portland, ME | $25,000 |
| Cops Metro Foundation | San Antonio, TX | $25,000 |
| King High Historical Foundation | Houston, TX | $25,000 |
| Nycoutward Bound Center Inc | Long Island City, NY | $25,000 |
| San Antonio Area Foundation | San Antonio, TX | $25,000 |
| Briscoe Western Art Museum | San Antonio, TX | $24,150 |
| Hope for the Future | West New York, NJ | $23,500 |
| Classic Theatre of San Antonio | San Antonio, TX | $22,500 |
| Accion International | Washington, DC | $20,000 |
| All Star Orchestra Summit | Larchmont, NY | $20,000 |
| Forebatten Foundation | Chapel Hill, NC | $20,000 |
| JA Worldwide Inc | Boston, MA | $20,000 |
| Roger's Memorial Library Foundation | Southampton, NY | $20,000 |
| The Leadership Foundation International Womens Forum | Washington, DC | $20,000 |
| Arboretum San Antonio | San Antonio, TX | $20,000 |
Showing the 60 largest of 320 reported grants.
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