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Foundation Lookup

Form 990-PFTax year 2025EIN 13-6266367

Muriel F Siebert Foundation Inc

A private foundation in Southampton, NY. Its return for tax year 2025 lists 126 grants and $2.3 million paid in grants.

See which foundations fund work like yours Matching by cause, place and grant size

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

7 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2025

    $2,251,900

    Grants listed
    126
    Assets, end of year
    $39,514,643

  • Tax year 2024

    $1,212,695

    Grants listed
    102
    Assets, end of year
    $40,529,096

  • Tax year 2023

    $916,560

    Grants listed
    92
    Assets, end of year
    $40,145,630

  • Tax year 2022

    $717,381

    Grants listed
    73
    Assets, end of year
    $39,551,946

  • Tax year 2021

    $656,375

    Grants listed
    81
    Assets, end of year
    $15,013,435

  • Tax year 2020

    $680,098

    Grants listed
    108
    Assets, end of year
    $12,926,737

  • Tax year 2019

    $615,167

    Grants listed
    In an attachment
    Assets, end of year
    $13,072,558

Grants paid in 2025

126 grants, largest first

As listed on the return. Grants to individuals show as “Individual”, with purpose and amount only.

  1. Lewis Clark CollegePortland, OR

    General Support

    $165,000
  2. Trustees of Columbia UniversityNew York, NY

    Department of Cardiology

    $150,000
  3. Women's Forum of New York IncNew York, NY

    General Support

    $150,000
  4. Texas AM San Antonio FoundationSan Antonio, TX

    General Support

    $70,000
  5. Individual

    General Support

    $55,000
  6. After-School All-StarsLos Angeles, CA

    General Support

    $50,000
  7. New York-Presbyterian Fund IncNew York, NY

    Department of Cardiology

    $50,000
  8. Champions Scholarship FundMalta, IL

    General Support

    $47,500
  9. Harper's Chapel MinistriesSan Antonio, TX

    General Support

    $45,000
  10. Individual

    General Support

    $41,300
  11. Individual

    General Support

    $40,000
  12. San Antonio Little Theater IncSan Antonio, TX

    San Pedro Playhouse

    $40,000
  13. Arboretum San AntonioSan Antonio, TX

    General Support

    $37,500
  14. Briscoe Western Art MuseumSan Antonio, TX

    General Support

    $37,500
  15. University of New Hampshire FdnDurham, NH

    General Support

    $35,000
  16. Individual

    General Support

    $32,600
  17. She's The FirstNew York, NY

    General Support

    $30,000
  18. Alamo Colleges FoundationSan Antonio, TX

    General Support

    $25,000
  19. Anti Defamation LeagueNew York, NY

    General Support

    $25,000
  20. Ballet San AntonioSan Antonio, TX

    General Support

    $25,000
  21. Bexar County Family Justice Ctr FdnSan Antonio, TX

    General Support

    $25,000
  22. COPS Metro FoundationSan Antonio, TX

    General Support

    $25,000
  23. Musical Bridges Around The WorldSan Antonio, TX

    General Support

    $25,000
  24. NYC Outward Bound Center IncLong Island City, NY

    General Support

    $25,000
  25. Riverside Church in the City of NYNew York, NY

    General Support

    $25,000
  26. Schwarzman Animal Medical CenterNew York, NY

    General Support

    $25,000
  27. Soldiers to SidelinesLewes, DE

    General Support

    $25,000
  28. Special Reach IncSan Antonio, TX

    General Support

    $25,000
  29. Trustees of Columbia UniversityNew York, NY

    Colins Wagner Scholarship Fund

    $25,000
  30. Classic Theatre of San AntonioSan Antonio, TX

    General Support

    $22,500
  31. Accion InternationalWashington, DC

    General Support

    $20,000
  32. All Star Orchestra SummitLarchmont, NY

    General Support

    $20,000
  33. ForeBatten FoundationChapel Hill, NC

    General Support

    $20,000
  34. JA Worldwide IncBoston, MA

    General Support

    $20,000
  35. Roger's Memorial Library FoundationSouthampton, NY

    General Support

    $20,000
  36. The Leadership FoundationWashington, DC

    International Womens Forum

    $20,000
  37. Hampton Classic Horse ShowBridgehampton, NY

    General Support

    $17,500
  38. Hampton Bays Beautification AssnHampton Bays, NY

    General Support

    $15,000
  39. Network For Young ArtistsSan Antonio, TX

    General Support

    $15,000
  40. Ransomed LifeSan Antonio, TX

    General Support

    $15,000
  41. State of Texas Kidney FoundationSan Antonio, TX

    General Support

    $15,000
  42. The Economic Club of New YorkNew York, NY

    General Support

    $15,000
  43. Individual

    General Support

    $10,000
  44. Archdiocese of San AntonioSan Antonio, TX

    Hope for the Future

    $10,000
  45. As One Chicago IncChicago, IL

    General Support

    $10,000
  46. Berkshire Taconic Community FdnSheffield, MA

    Helga S. Orthofer Memorial Fund

    $10,000
  47. Brackenridge Park ConservancySan Antonio, TX

    General Support

    $10,000
  48. Individual

    General Support

    $10,000
  49. Catholic Charities of San AntonioSan Antonio, TX

    General Support

    $10,000
  50. Cisneros Scholars ProgramSan Antonio, TX

    General Support

    $10,000
  51. Equal Justice InitiativeMontgomery, AL

    General Support

    $10,000
  52. Fairplay IncBoston, MA

    General Support

    $10,000
  53. Girls Scouts of Southwest TexasSan Antonio, TX

    General Support

    $10,000
  54. Individual

    General Support

    $10,000
  55. Madonna CenterSan Antonio, TX

    General Support

    $10,000
  56. Magik TheatreSan Antonio, TX

    General Support

    $10,000
  57. Metropolitan Museum of ArtNew York, NY

    General Support

    $10,000
  58. Mind Science FoundationSan Antonio, TX

    General Support

    $10,000
  59. Monmouth UniversityW Long Branch, NJ

    General Support

    $10,000
  60. Music Center FoundationLos Angeles, CA

    General Support

    $10,000
  61. New York Landmarks ConservancyNew York, NY

    General Support

    $10,000
  62. Outward Bound IncBoulder, CO

    General Support

    $10,000
  63. Phelps Memorial Hospital AssnWestbury, NY

    General Support

    $10,000
  64. Reflection Ministries of Texas IncMidland, TX

    General Support

    $10,000
  65. Rey Feo Scholarship FoundationSan Antonio, TX

    General Support

    $10,000
  66. Individual

    General Support

    $10,000
  67. SA Mexico Friendship Council IncSan Antonio, TX

    General Support

    $10,000
  68. SA Women's Chamber of Commerce FdnSan Antonio, TX

    General Support

    $10,000
  69. San Antonio After School All StarsSan Antonio, TX

    General Support

    $10,000
  70. San Antonio Museum of ArtSan Antonio, TX

    General Support

    $10,000
  71. San Antonio Zoological SocietySan Antonio, TX

    General Support

    $10,000
  72. Southampton Arts CenterSouthampton, NY

    General Support

    $10,000
  73. Southampton Playhouse IncSouthampton, NY

    General Support

    $10,000
  74. Southern Poverty Law Center IncMontgomery, AL

    General Support

    $10,000
  75. Individual

    General Support

    $10,000
  76. Stonewood Community Project IncMillbrook, NY

    General Support

    $10,000
  77. Individual

    General Support

    $10,000
  78. Individual

    General Support

    $10,000
  79. The Nature ConservancyArlington, VA

    General Support

    $10,000
  80. The Trust for Public LandSan Francisco, CA

    General Support

    $10,000
  81. Tobin Center for Performing ArtsSan Antonio, TX

    General Support

    $10,000
  82. Trustees of Columbia UniversityNew York, NY

    General Support

    $10,000
  83. Trustees of Columbia UniversityNew York, NY

    Columbia Community Service

    $10,000
  84. University Health FoundationSan Antonio, TX

    General Support

    $10,000
  85. University of Texas at AustinAustin, TX

    LBJ School of Public Affairs

    $10,000
  86. University of Texas at AustinAustin, TX

    Longhorn Foundation Coach James Blackwood Track & Field Endowment

    $10,000
  87. University of Texas San AntonioSan Antonio, TX

    General Support

    $10,000
  88. World Affairs Council-San AntonioSan Antonio, TX

    General Support

    $10,000
  89. WP TheaterNew York, NY

    General Support

    $10,000
  90. San Antonio Livestock ExpositionSan Antonio, TX

    General Support

    $7,500
  91. San Antonio Rosas Amarillas IncSeguin, TX

    General Support

    $7,500
  92. San Antonio Youth LiteracySan Antonio, TX

    General Support

    $7,500
  93. Advance Gender Equity in the ArtsPortland, OR

    General Support

    $5,000
  94. American National Red CrossWashington, DC

    General Support

    $5,000
  95. D2 StrongSan Antonio, TX

    General Support

    $5,000
  96. Doctors Without Borders USA IncNew York, NY

    General Support

    $5,000
  97. Family Violence Prevention ServicesSan Antonio, TX

    General Support

    $5,000
  98. Feral Cat Coalition of OregonPortland, OR

    General Support

    $5,000
  99. Individual

    General Support

    $5,000
  100. Kendal On Hudson Charitable FundSleepy Hollow, NY

    General Support

    $5,000
  101. Ladies Village Improvement SocietyEast Hampton, NY

    General Support

    $5,000
  102. Lighthouse Guild International IncNew York, NY

    General Support

    $5,000
  103. Maureen's HavenRiverhead, NY

    General Support

    $5,000
  104. New York Public RadioNew York, NY

    General Support

    $5,000
  105. Parrish Art Museum IncWater Mill, NY

    General Support

    $5,000
  106. Peconic Land Trust IncSouthampton, NY

    General Support

    $5,000
  107. Pequot Library AssociationSouthport, CT

    General Support

    $5,000
  108. Puppies Behind BarsNew York, NY

    General Support

    $5,000
  109. Retreat IncEast Hampton, NY

    General Support

    $5,000
  110. San Antonio Bar FoundationSan Antonio, TX

    General Support

    $5,000
  111. Southampton Hospital AssociationSouthampton, NY

    General Support

    $5,000
  112. Southampton Public Safety FdnSouthampton, NY

    General Support

    $5,000
  113. The Alex Fund IncNew York, NY

    General Support

    $5,000
  114. The Wetlands ConservancyPortland, OR

    General Support

    $5,000
  115. Van Courtlandt FoundationSan Antonio, TX

    General Support

    $5,000
  116. World Central KitchenWashington, DC

    General Support

    $5,000
  117. YMCA of San AntonioSan Antonio, TX

    General Support

    $5,000
  118. San Antonio Parks FoundationSan Antonio, TX

    General Support

    $3,500
  119. San Antonio Women's Hall of FameSan Antonio, TX

    General Support

    $3,500
  120. Haven for Hope of Bexar CountySan Antonio, TX

    General Support

    $3,000
  121. Social Health Research CenterSan Antonio, TX

    General Support

    $3,000
  122. Blanco County Cat Coalition IncJohnson City, TX

    General Support

    $2,500
  123. Individual

    General Support

    $2,500
  124. San Antonio PhilharmonicSan Antonio, TX

    General Support

    $2,000
  125. Individual

    General Support

    $1,500
  126. Southampton Volunteer AmbulanceSouthampton, NY

    General Support

    $1,500

Where the money goes

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

  1. Education8 grants $245,00021% of the total
  2. Arts and culture16 grants $222,00019% of the total
  3. Community development3 grants $160,00014% of the total
  4. Human services13 grants $148,50013% of the total
  5. Health6 grants $86,5008% of the total
  6. Environment5 grants $67,5006% of the total
  7. 10 other causes22 grants $218,00019% of the total

By State

Grants to organizations with a US address, latest year.

  1. New York37 grants $749,000
  2. Texas50 grants $722,500
  3. Oregon4 grants $180,000
  4. California3 grants $70,000
  5. Illinois2 grants $57,500
  6. District of Columbia4 grants $50,000
  7. Massachusetts3 grants $40,000
  8. New Hampshire1 grant $35,000
  9. Delaware1 grant $25,000
  10. Alabama2 grants $20,000

Officers, directors and trustees

3 people as filed

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

  • Patricia L FrancyPresident Hours 10Pay $86,720
  • Jane H MaconVP Treasurer Hours 10Pay $86,720
  • June JaffeeSecretary Hours 10Pay $86,720

The return

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