Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.

Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.

Nonprofit profiles

  1. St Lawrence Valley Sportsmens Club Inc

    EIN 161400279 · Headquarters: Ogdensburg, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. St Lawrence-price Hill Council 14545

    EIN 800199717 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. St Leo Assisted Housing NFP

    EIN 470950766 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. St Leo Firemens Relief Association

    EIN 411480680 · Headquarters: CANBY, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. St Leo the Great for the Triad Guild Catholic Medical Association

    EIN 332578503 · Headquarters: Winston Salem, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. St Leon Lucky Leafers

    EIN 991585948 · Headquarters: Aurora, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. St Leon Volunteer Fire Dept Inc

    EIN 237072614 · Headquarters: West Harrison, IN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  8. St Leonard's Home Inc

    EIN 251460742 · Headquarters: DUNCANSVILLE, PA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  9. St Louis Academy of Family Physicians

    EIN 430632914 · Headquarters: JEFFERSON CITY, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. St Louis Agri Business Club

    EIN 431238736 · Headquarters: OFallon, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. St Louis Allied Printing Trade

    EIN 430156215 · Headquarters: Maryland Heights, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. St Louis Altenheim C/o Jim Von Der Heydt

    EIN 430653512 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. St Louis Alumnae Chapter of Alpha Xi Delta Fraternity

    EIN 431300707 · Headquarters: Kirkwood, MO, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  14. St Louis Alumnae Panhellenic Association

    EIN 436046114 · Headquarters: Des Peres, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. St Louis Alumni Chapter of the Tau Beta Pi Assoc Tbp Stl Alumni

    EIN 870926155 · Headquarters: Jerseyville, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. St Louis Amateur Boxing Assn Inc

    EIN 237132818 · Headquarters: Wright City, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. St Louis Amateur Radio Club Inc

    EIN 272759765 · Headquarters: Town and Country, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. St Louis Animal Rights Team Inc

    EIN 431461973 · Headquarters: St Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. St Louis Apartment Association

    EIN 431199006 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. St Louis Area Dressage Society

    EIN 391706074 · Headquarters: CHESTERFIELD, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. St Louis Area Fire Administrators

    EIN 842511274 · Headquarters: Bridgeton, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. St Louis Area Fire Administrators Llc

    EIN 832639101 · Headquarters: Maryland Heights, MO, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  23. St Louis Area Hotel Association

    EIN 430603018 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. St Louis Area Masonic Lodge of Instruction

    EIN 823506331 · Headquarters: Ballwin, MO, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  25. St Louis Artists Guild

    EIN 430888412 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. St Louis Artists' Guild Permanent Endowment Foundation

    EIN 431565734 · Headquarters: Chesterfield, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  27. St Louis Association for Gifted Education

    EIN 431372562 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  28. St Louis Association of Community Organizations

    EIN 431155562 · Headquarters: Saint Louis, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. St Louis Association of Realtors

    EIN 430496480 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. St Louis Astronomical Society

    EIN 431439598 · Headquarters: Ofallon, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. St Louis Attraction Association

    EIN 371249369 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. St Louis Award Inc C/o David W Kemper Commerce Bank

    EIN 431538798 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  33. St Louis Ayyappa Seva Group

    EIN 383803082 · Headquarters: Ballwin, MO, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  34. St Louis Badminton Classic

    EIN 431500988 · Headquarters: St Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. St Louis Ballroom Dancers

    EIN 431458151 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. St Louis Brews

    EIN 431605716 · Headquarters: St Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. St Louis Business Womens Golf Association

    EIN 431671488 · Headquarters: Bridgeton, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. St Louis Calligraphy Guild

    EIN 431185097 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. St Louis Camera Club Inc

    EIN 436057344 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. St Louis Ccim Chapter

    EIN 431603966 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. St Louis Center

    EIN 386038121 · Headquarters: CHELSEA, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. St Louis Center for International Relations

    EIN 431491605 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  43. St Louis Chapter Administrative Management Society

    EIN 436061721 · Headquarters: Chesterfield, MO, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  44. St Louis Chapter Constr Spec Institute

    EIN 431299023 · Headquarters: TROY, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. St Louis Chapter No 48 of the Womens Army Corps Veterans Associa

    EIN 431236680 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  46. St Louis Chapter of National Corvette Restorers Society

    EIN 431640028 · Headquarters: Saint Charles, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. St Louis Chapter of Smps

    EIN 431272806 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  48. St Louis Chapter of the Society of Cpcu

    EIN 431647474 · Headquarters: St louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. St Louis Chapter-american Society of Chartered Life Underwriters

    EIN 436076359 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  50. St Louis Christian Medical Center Inc

    EIN 431521381 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. St Louis Christmas Carols Associati

    EIN 436003229 · Headquarters: Saint Louis, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. St Louis Church of God Inc

    EIN 431674542 · Headquarters: St Louis, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  53. St Louis Committee on Foreign Relations Inc

    EIN 431462979 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  54. St Louis Community College Foundation

    EIN 431374500 · Headquarters: Bridgeton, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. St Louis Contracting Painters and Decorators Foundation

    EIN 436187150 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. St Louis Contracting Painters and Decorators Industry Advancement Fund

    EIN 431037379 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. St Louis Council of Construction Employers

    EIN 431520706 · Headquarters: Arnold, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. St Louis Country Club

    EIN 430494275 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. St Louis County Agricultural Fair

    EIN 410901607 · Headquarters: Chisholm, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. St Louis County Athletic Association

    EIN 431131019 · Headquarters: KIRKWOOD, MO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  61. St Louis County Bar Association

    EIN 430915700 · Headquarters: CLAYTON, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  62. St Louis County Civilian Retirees Association

    EIN 263117157 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. St Louis County Employees Association

    EIN 411346492 · Headquarters: DULUTH, MN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. St Louis County Farm Bureau

    EIN 430655998 · Headquarters: MANCHESTER, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. St Louis County Historical Society

    EIN 410773781 · Headquarters: DULUTH, MN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. St Louis County Hunting Shack Leaseholders Association

    EIN 411728122 · Headquarters: PROCTOR, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. St Louis County Vfw Post 4105 Mens Auxiliary

    EIN 464659230 · Headquarters: Florissant, MO, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  68. St Louis Crisis Nursery

    EIN 431410297 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. St Louis Cultural Flamenco Society

    EIN 431413989 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. St Louis Dancing Teachers Associat Judy Arkes

    EIN 436046351 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  71. St Louis Decorators Union Local 39 Health & Welfare Fund

    EIN 431655064 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. St Louis Decorators Welfare Trust

    EIN 376779504 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. St Louis Dental Implant Study Club

    EIN 364804822 · Headquarters: St Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  74. St Louis Derm Journal Club

    EIN 431764309 · Headquarters: Kirkwood, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. St Louis Destination Swing West Coast Dance Club

    EIN 364800604 · Headquarters: St Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. St Louis Development Corporation

    EIN 431490972 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. St Louis District Golf Association

    EIN 431202365 · Headquarters: Cottleville, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  78. St Louis District Tennis Association

    EIN 436049902 · Headquarters: Saint Louis, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. St Louis Dsa

    EIN 611858092 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. St Louis Eagles Basketball Club

    EIN 431605408 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. St Louis Economic Development Group Inc

    EIN 320512396 · Headquarters: St Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. St Louis Economic Development Partnership

    EIN 431361364 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  83. St Louis Elks Lodge 0009 Bpoe

    EIN 430178580 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. St Louis Explorers Club Chapter

    EIN 431531592 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. St Louis Fencing Club

    EIN 431894446 · Headquarters: FERGUSON, MO, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  86. St Louis Florists Network

    EIN 205565007 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  87. St Louis Flying Club Inc

    EIN 454881563 · Headquarters: High Ridge, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. St Louis Forum

    EIN 431275561 · Headquarters: Saint Louis, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. St Louis Foundation for Architecture

    EIN 431109231 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  90. St Louis Fude No Kai

    EIN 372123784 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. St Louis Genealogical Society

    EIN 237052237 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. St Louis Glass & Allied Industries Health and Welfare Fund

    EIN 436199203 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  93. St Louis Graphic Arts Joint Health & Welfare Fund

    EIN 431178602 · Headquarters: ST PETERS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. St Louis Gymnastic Centre

    EIN 237311376 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. St Louis Hills Neighborhood Association

    EIN 431319700 · Headquarters: ST LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  96. St Louis Hinder Club Ltd

    EIN 900495618 · Headquarters: Hazelwood, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. St Louis Independent Restaurant Association

    EIN 260336548 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  98. St Louis Indian Cultural Association

    EIN 352903401 · Headquarters: Olivette, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. St Louis Institute Of Food Technologists

    EIN 436047675 · Headquarters: Saint Louis, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. St Louis Inter Faith Committee on Latin America

    EIN 431284733 · Headquarters: Saint Louis, MO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

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