Nonprofits in Saint Louis, Missouri

Nonprofits in Saint Louis, Missouri. Browse 7,448 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. Olivebrook Community

    EIN 821234839 · Headquarters: Saint Louis, MO, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  2. Oliver & Cunningham Fam Fdn-main

    EIN 356013076 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  3. Olivet Assembly Inc

    EIN 461687117 · Headquarters: Saint Louis, MO, USA · Religion Related · Latest available filing year: 2020 · Primary form: IRS Form 990-T

  4. Olivette in Bloom

    EIN 431907241 · Headquarters: Saint Louis, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Olmstead Smith Clareta Char

    EIN 916244502 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  6. Olson Clifford & Anna Fbo Woodward

    EIN 426561196 · Headquarters: SAINT LOUIS, MO, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  7. Oma Bell Perry Charitable Remainder Trust

    EIN 746450319 · Headquarters: SAINT LOUIS, MO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  8. Omega of Zeta Beta Tau Building Assoc C/o Bert Schweizer Iii

    EIN 436061733 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Omega Psi Phi Franternity

    EIN 436050089 · Headquarters: Saint Louis, MO, US · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  10. Omni Center

    EIN 932959652 · Headquarters: SAINT LOUIS, MO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. One Climb

    EIN 821959606 · Headquarters: SAINT LOUIS, MO, USA · Youth Development · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  12. One Drop for Life

    EIN 824222638 · Headquarters: Saint Louis, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. One Heart Family Ministries Inc

    EIN 050533141 · Headquarters: SAINT LOUIS, MO, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. One Nigeria Stl Chapter

    EIN 990794473 · Headquarters: Saint Louis, MO, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. One Silverstar

    EIN 862082111 · Headquarters: Saint Louis, MO, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. One to Grow on 3

    EIN 882845764 · Headquarters: Saint Louis, MO, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. One World Family Inc

    EIN 421618294 · Headquarters: SAINT LOUIS, MO, USA · International, Foreign Affairs & National Security · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  18. Oneil M Fbo Charities Ir Tua

    EIN 236746335 · Headquarters: SAINT LOUIS, MO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  19. Ones Who Care

    EIN 882281472 · Headquarters: Saint Louis, MO, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  20. Onsite Theatre Company

    EIN 208912046 · Headquarters: Saint Louis, MO, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  21. Onward

    EIN 332050278 · Headquarters: Saint Louis, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Opa Foundation

    EIN 921133148 · Headquarters: SAINT LOUIS, MO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  23. Open Hands Counseling & Community S Ervices

    EIN 412782122 · Headquarters: Saint Louis, MO, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Open Space Cncl for the St Louis Region

    EIN 436065329 · Headquarters: SAINT LOUIS, MO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Operation Prom Nite

    EIN 813562654 · Headquarters: SAINT LOUIS, MO, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  26. Operative Plasterers & Cement Masons International Association

    EIN 430460310 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Opojaz Inc

    EIN 133285442 · Headquarters: Saint Louis, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Opportunity House

    EIN 873902417 · Headquarters: Saint Louis, MO, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Optimal Health Research and Education Institute

    EIN 800447403 · Headquarters: SAINT LOUIS, MO, US · Health Care · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  30. Optimist Club of Lawndale Tua

    EIN 953766429 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Optimist International

    EIN 237455505 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Optimist International

    EIN 381560748 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Optimist International

    EIN 430443279 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Optimist International

    EIN 431332839 · Headquarters: Saint Louis, MO, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  35. Optimist International

    EIN 436037723 · Headquarters: SAINT LOUIS, MO, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  36. Optimist International

    EIN 473967095 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Optimist International

    EIN 526054463 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Optimist International

    EIN 626080675 · Headquarters: Saint Louis, MO, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  39. Optimist International

    EIN 882983907 · Headquarters: Saint Louis, MO, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Optimist International Youth Programs Foundation Inc

    EIN 431733736 · Headquarters: SAINT LOUIS, MO, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Orchestra Parents United for Students

    EIN 471179419 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Orcutt Muriel Charitable Trust

    EIN 416502349 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  43. Order of Judith

    EIN 934665685 · Headquarters: Saint Louis, MO, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Order of the Alhambra

    EIN 474208617 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  45. Order of the White Shrine of Jersalem

    EIN 237514429 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  46. Order of the White Shrine of Jerusalem

    EIN 237111118 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  47. Order of the White Shrine of Jerusalem

    EIN 237136636 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  48. Order of the White Shrine of Jerusalem

    EIN 237513728 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Order of the White Shrine of Jerusalem

    EIN 237513762 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  50. Order of the White Shrine of Jerusalem

    EIN 237513805 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Order of the White Shrine of Jerusalem

    EIN 237513833 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  52. Order of the White Shrine of Jerusalem

    EIN 237513867 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  53. Order of the White Shrine of Jerusalem

    EIN 237513878 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Order of the White Shrine of Jerusalem

    EIN 237513882 · Headquarters: Saint Louis, MO, US · Religion Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  55. Order of the White Shrine of Jerusalem

    EIN 237513887 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  56. Order of the White Shrine of Jerusalem

    EIN 237513901 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  57. Order of the White Shrine of Jerusalem

    EIN 237513917 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  58. Order of the White Shrine of Jerusalem

    EIN 237513927 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  59. Order of the White Shrine of Jerusalem

    EIN 237513988 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  60. Order of the White Shrine of Jerusalem

    EIN 237514003 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  61. Order of the White Shrine of Jerusalem

    EIN 237514078 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  62. Order of the White Shrine of Jerusalem

    EIN 237514096 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Order of the White Shrine of Jerusalem

    EIN 237514097 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  64. Order of the White Shrine of Jerusalem

    EIN 237514121 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  65. Order of the White Shrine of Jerusalem

    EIN 237514189 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  66. Order of the White Shrine of Jerusalem

    EIN 237514199 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  67. Order of the White Shrine of Jerusalem

    EIN 237514208 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  68. Order of the White Shrine of Jerusalem

    EIN 237514215 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  69. Order of the White Shrine of Jerusalem

    EIN 237514233 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Order of the White Shrine of Jerusalem

    EIN 237514255 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Order of the White Shrine of Jerusalem

    EIN 237514276 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  72. Order of the White Shrine of Jerusalem

    EIN 237514334 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  73. Order of the White Shrine of Jerusalem

    EIN 237514345 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  74. Order of the White Shrine of Jerusalem

    EIN 237514385 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  75. Order of the White Shrine of Jerusalem

    EIN 237514415 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Order of the White Shrine of Jerusalem

    EIN 237514426 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  77. Order of the White Shrine of Jerusalem

    EIN 237514440 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  78. Order of the White Shrine of Jerusalem

    EIN 237514444 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Order of the White Shrine of Jerusalem

    EIN 237514450 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Order of the White Shrine of Jerusalem

    EIN 237514486 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  81. Order of the White Shrine of Jerusalem

    EIN 390826392 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  82. Order of the White Shrine of Jerusalem

    EIN 426059010 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  83. Order of the White Shrine of Jerusalem

    EIN 592438360 · Headquarters: Saint Louis, MO, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  84. Order of the White Shrine of Jerusalem

    EIN 611427744 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  85. Order of the White Shrine of Jerusalerm

    EIN 237513819 · Headquarters: Saint Louis, MO, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  86. Organ Media Foundation

    EIN 274668771 · Headquarters: Saint Louis, MO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Organization for Black Struggle

    EIN 463236344 · Headquarters: SAINT LOUIS, MO, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Organized K H a O S Inc

    EIN 465747272 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  89. Ormiston Clara Tuw

    EIN 846016652 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  90. Orourke J Var Ch

    EIN 236246690 · Headquarters: SAINT LOUIS, MO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  91. Orr Carl and Lena Charitable Trust

    EIN 830681597 · Headquarters: SAINT LOUIS, MO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  92. Orr James Donald Charitable Trust

    EIN 825512604 · Headquarters: SAINT LOUIS, MO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  93. Orr Waldon H and Adele Charitable Trust

    EIN 746523535 · Headquarters: SAINT LOUIS, MO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  94. Orville E Rolfe

    EIN 256816729 · Headquarters: SAINT LOUIS, MO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  95. Oscar and Mona Sokol Foundation

    EIN 576139525 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  96. Ostern S Char

    EIN 846187154 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  97. Oteka Solutions Inc

    EIN 833799955 · Headquarters: SAINT LOUIS, MO, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. Otilia Petersen Tuw

    EIN 256839331 · Headquarters: SAINT LOUIS, MO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  99. Our Caring Hearts

    EIN 871749301 · Headquarters: Saint Louis, MO, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. Our Lady of Guadalupe for Life

    EIN 431967272 · Headquarters: SAINT LOUIS, MO, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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