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Foundation Lookup

Grant recipient EIN 13-6209307

Who funds The Leffell School?

32 private foundations gave The Leffell School in Hartsdale, NY $8.5 million across 90 grants, in tax years 2019 to 2025.

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

Grants listed on funders’ 990-PF returns for tax years 2019 to 2025, read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

Grants received by year

Grants from private foundations by the funder’s tax year. The latest year is in blue; it is not complete until all its returns reach the IRS.

Every foundation grant, by year

90 grants

Each line as the funder listed it on its return, newest year first, then largest.

  1. Amateur Radio Digital CommunicationsSan Diego, CA 2025

    Build a student-run satellite ground station to support hands-on learning with amateur radio.

    $31,200
  2. The Nancy Friday FoundationRockville Centre, NY 2025

    General support

    $25,000
  3. Milton & Mildred Rosen FoundationEast Windsor, NJ 2025

    Support charitable causes

    $15,000
  4. JPMorgan Chase FoundationNew York, NY 2025

    Matching contribution (general operating support)

    $2,250
  5. Soros Fund Charitable FoundationNew York, NY 2025

    General Support

    $1,500
  6. The Rosalie Katz Family Foundation IncWhite Plains, NY 2025

    Unrestricted

    $360
  7. The Gottesman FundNew York, NY 2024

    General support

    $425,000
  8. Simbat FoundationNew York, NY 2024

    Unrestricted

    $118,000
  9. Lovell Family LTDNew York, NY 2024

    To further charitable & cultural activities

    $45,000
  10. Julie and Martin Franklin Family Foundation IncMiami Beach, FL 2024

    General charitable

    $40,000
  11. Lisa & Michael Leffell FoundationNew York, NY 2024

    Education

    $33,955
  12. Eve & Simon Colin Family FoundationNew York, NY 2024

    General support

    $20,000
  13. Milton & Mildred Rosen FoundationEast Windsor, NJ 2024

    Support charitable causes

    $16,610
  14. Brian P Friedman Family FoundationEast Hampton, NY 2024

    General support

    $10,000
  15. Fried Family Charitable FoundationWilmington, DE 2024

    The Dayan Family Pledge Fund

    $10,000
  16. Fried Family Charitable FoundationWilmington, DE 2024

    General & Unrestricted

    $10,000
  17. The Nancy Friday FoundationRockville Centre, NY 2024

    General support

    $5,000
  18. Sitchin Foundation IncWest Harrison, NY 2024

    Unrestricted

    $4,920
  19. Alan and Giselle Weissman Family Foundation IncHarrison, NY 2024

    To further its charitable purposes

    $3,600
  20. JPMorgan Chase FoundationNew York, NY 2024

    Matching contribution (general operating support)

    $2,250
  21. Ruth Winkelman Wender FoundationWilmington, DE 2024

    General operations

    $1,801
  22. Soros Fund Charitable FoundationNew York, NY 2024

    General Support

    $1,000
  23. The Gottesman FundNew York, NY 2023

    General support

    $425,000
  24. Lisa & Michael Leffell FoundationNew York, NY 2023

    Education

    $261,200
  25. Simbat FoundationNew York, NY 2023

    Unrestricted

    $100,000
  26. The Rosalie Katz Family Foundation IncWhite Plains, NY 2023

    Unrestricted

    $83,750
  27. Lovell Family LTDNew York, NY 2023

    To further charitable & cultural activities

    $45,000
  28. Eve & Simon Colin Family FoundationNew York, NY 2023

    General support

    $40,000
  29. Milton & Mildred Rosen FoundationEast Windsor, NJ 2023

    Support charitable causes

    $22,000
  30. The Prince Family FoundationMiami Beach, FL 2023

    General/unrestricted

    $6,400
  31. Sitchin Foundation IncWest Harrison, NY 2023

    Unrestricted

    $5,120
  32. JPMorgan Chase FoundationNew York, NY 2023

    General operating support

    $2,000
  33. Ruth Winkelman Wender FoundationWilmington, DE 2023

    General operations

    $1,801
  34. Amazonsmile FoundationSeattle, WA 2023

    General support

    $1,135
  35. Alan D and Marsha W Bramowitz Charitable TrustPittsburgh, PA 2023

    Donation

    $1,000
  36. JPMorgan Chase FoundationNew York, NY 2023

    General operating support

    $380
  37. The Gottesman FundNew York, NY 2022

    General support

    $375,000
  38. Simbat FoundationNew York, NY 2022

    Unrestricted

    $100,000
  39. Lovell Family LTDNew York, NY 2022

    To further charitable & cultural activities

    $45,000
  40. The Rosalie Katz Family Foundation IncWhite Plains, NY 2022

    Unrestricted

    $38,436
  41. Milton & Mildred Rosen FoundationEast Windsor, NJ 2022

    Support charitable causes

    $17,000
  42. Sitchin Foundation IncWest Harrison, NY 2022

    Unrestricted

    $12,700
  43. JPMorgan Chase FoundationNew York, NY 2022

    General operating support

    $2,408
  44. Weintraub Family FoundationScarsdale, NY 2022

    Education

    $1,921
  45. Ruth Winkelman Wender FoundationWilmington, DE 2022

    General operations

    $1,818
  46. Amazonsmile FoundationSeattle, WA 2022

    General support

    $1,555
  47. Tina & Steven Price Charitable FoundationNew York, NY 2022

    Charitable

    $1,000
  48. Alan D and Marsha W Bramowitz Charitable TrustPittsburgh, PA 2022

    Donation

    $1,000
  49. Lisa & Michael Leffell FoundationNew York, NY 2021

    Education

    $1,425,000
  50. The Gottesman FundNew York, NY 2021

    General support

    $375,000
  51. Simbat FoundationNew York, NY 2021

    Unrestricted

    $350,000
  52. Julie and Martin Franklin Family Foundation IncMiami Beach, FL 2021

    General charitable

    $50,000
  53. Lovell Family LTDNew York, NY 2021

    To further charitable & cultural activities

    $45,000
  54. Eve & Simon Colin Family FoundationNew York, NY 2021

    General charitable

    $20,000
  55. Sitchin Foundation IncWest Harrison, NY 2021

    Unrestricted

    $12,172
  56. Marc J Leder Foundation IncBoca Raton, FL 2021

    To fund the charitable purpose of the organization.

    $10,000
  57. The Nancy Friday FoundationRockville Centre, NY 2021

    General support

    $10,000
  58. Sophie and David Rubin FoundationOakland, NJ 2021

    Charity

    $7,000
  59. The Rosalie Katz Family Foundation IncWhite Plains, NY 2021

    Unrestricted

    $3,600
  60. Ruth Winkelman Wender FoundationWilmington, DE 2021

    General operations

    $2,000
  61. JPMorgan Chase FoundationNew York, NY 2021

    General operating support

    $2,000
  62. The Beran Family FoundationTenafly, NJ 2021

    Unrestricted

    $1,800
  63. Amazonsmile FoundationSeattle, WA 2021

    General support

    $1,405
  64. Weintraub Family FoundationScarsdale, NY 2021

    Education

    $1,000
  65. The Floyd and Barbara Warkol Charitable FoundationDelray Beach, FL 2021

    General contribution

    $1,000
  66. Sophie and David Rubin FoundationOakland, NJ 2021

    Charity

    $500
  67. Alan D and Marsha W Bramowitz Charitable TrustPittsburgh, PA 2021

    Donation

    $500
  68. The Gottdenker FoundationMiami, FL 2021

    General fund

    $180
  69. The Gottesman FundNew York, NY 2020

    General support

    $375,000
  70. Simbat FoundationNew York, NY 2020

    General operating support

    $180,000
  71. Julie and Martin Franklin Family Foundation IncMiami Beach, FL 2020

    General charitable

    $150,000
  72. The Rosalie Katz Family Foundation IncWhite Plains, NY 2020

    Unrestricted

    $64,750
  73. Lovell Family LTDNew York, NY 2020

    To further charitable & cultural activities

    $45,000
  74. Simon and Eve Colin FoundationManhasset, NY 2020

    General charitable

    $20,000
  75. Sitchin Foundation IncWest Harrison, NY 2020

    Unrestricted

    $12,000
  76. David S Shapira FoundationPittsburgh, PA 2020

    Charitable

    $7,500
  77. Weintraub Family FoundationScarsdale, NY 2020

    Education

    $5,000
  78. Lisa & Michael Leffell FoundationNew York, NY 2020

    Education

    $2,489
  79. Ruth Winkelman Wender FoundationWilmington, DE 2020

    General operations

    $2,000
  80. Amazonsmile FoundationSeattle, WA 2020

    General support

    $1,041
  81. The Harriet & George Blank Bella Foundation Ui DTD 12232008New Hope, PA 2020

    Charitable contribution

    $500
  82. Tisch Foundation IncNew York, NY 2020

    To further educational, religious, medical, cultural, societal and environmental causes.

    $500
  83. Alan D and Marsha W Bramowitz Charitable TrustPittsburgh, PA 2020

    Donation

    $189
  84. Lisa & Michael Leffell FoundationNew York, NY 2019

    Education

    $2,000,000
  85. Simbat FoundationNew York, NY 2019

    General operating support

    $450,000
  86. The Gottesman FundNew York, NY 2019

    General support

    $425,000
  87. Lovell Family LTDNew York, NY 2019

    To further charitable & cultural activities

    $45,000
  88. Fuhrman Family FoundationNew York, NY 2019

    For donee's exempt purpose

    $1,000
  89. Sitchin Foundation IncWest Harrison, NY 2019

    Unrestricted

    $180
  90. The Rosalie Katz Family Foundation IncWhite Plains, NY 2019

    Unrestricted

    $180

About this match

Funders write a recipient’s name and address, not its EIN. We matched these grants to EIN 13-6209307 by name and ZIP code against the IRS list of exempt organizations and our list of filers. Grants we could not tie to one organization are not counted here.