Nonprofits in San Antonio, Texas

Nonprofits in San Antonio, Texas. Browse 7,934 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. O'keefe Garden Brook Apartments Inc

    EIN 742951862 · Headquarters: SAN ANTONIO, TX, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. O'kelley - Hemminghaus Foundation

    EIN 743020054 · Headquarters: SAN ANTONIO, TX, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  3. Oak Hills Citizens Association

    EIN 742244674 · Headquarters: SAN ANTONIO, TX, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Oak Hills Country Club

    EIN 741051547 · Headquarters: SAN ANTONIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Oak Hills Rotary Foundation Inc

    EIN 742523577 · Headquarters: SAN ANTONIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Oak Hollow Park Neighborhood Association

    EIN 742742486 · Headquarters: San Antonio, TX, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Oak One of a Kind Corporation

    EIN 453728991 · Headquarters: SAN ANTONIO, TX, USA · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990

  8. Oakhurst Community Association

    EIN 760400212 · Headquarters: SAN ANTONIO, TX, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Oars Foundation Inc

    EIN 821076000 · Headquarters: SAN ANTONIO, TX, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Oasis Alternative Health Foundation

    EIN 831810550 · Headquarters: San Antonio, TX, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Oblate School of Theology

    EIN 741357323 · Headquarters: SAN ANTONIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Ocd Texas

    EIN 273863630 · Headquarters: San Antonio, TX, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Oconnor Family Foundation

    EIN 994959438 · Headquarters: SAN ANTONIO, TX, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  14. Ocurrant Deo

    EIN 834283952 · Headquarters: San Antonio, TX, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Ofb Ministries Inc

    EIN 271527502 · Headquarters: SAN ANTONIO, TX, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Off-stage Inc

    EIN 742071813 · Headquarters: San Antonio, TX, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  17. Offerings for Life Inc

    EIN 822759370 · Headquarters: San Antonio, TX, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Office and Professional Employees International Union

    EIN 746072992 · Headquarters: San Antonio, TX, US · Employment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  19. Og Beckfrueh-beck Memorial Trust F0195400

    EIN 746134161 · Headquarters: SAN ANTONIO, TX, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Og Vteranas

    EIN 862249012 · Headquarters: San Antonio, TX, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Ohio State University Alumni Association Inc

    EIN 320290212 · Headquarters: San Antonio, TX, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Ohr Lanu Foundation

    EIN 473535967 · Headquarters: San Antonio, TX, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. Ohr Zahava School

    EIN 884062343 · Headquarters: SAN ANTONIO, TX, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Oilfield Christian Fellowship of San Antonio

    EIN 464497140 · Headquarters: San Antonio, TX, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. Ojeda Foundation

    EIN 824077337 · Headquarters: SAN ANTONIO, TX, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Old Spanish Missions Inc

    EIN 742155244 · Headquarters: SAN ANTONIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Old Spanish Trail Centennial Celebration Association

    EIN 842041999 · Headquarters: San Antonio, TX, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Old Trail Drivers Association of Texas

    EIN 320430882 · Headquarters: SAN ANTONIO, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Olgas Christmas Angels Inc

    EIN 823312655 · Headquarters: SAN ANTONIO, TX, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Oliver Wendell Holmes Band Booster Club

    EIN 742789405 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  31. Oliver Wendell Holmes High School Band Booster Club

    EIN 742650885 · Headquarters: SAN ANTONIO, TX, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  32. Olivia Buckley Memorial Foundation

    EIN 833409151 · Headquarters: San Antonio, TX, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Ollu Main Building

    EIN 271349237 · Headquarters: SAN ANTONIO, TX, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Olly Gives

    EIN 934062192 · Headquarters: SAN ANTONIO, TX, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Olmos Ensemble

    EIN 742711997 · Headquarters: San Antonio, TX, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. Olmos Park Foundation

    EIN 264491803 · Headquarters: SAN ANTONIO, TX, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  37. Olmos Park Youth Commission

    EIN 831899077 · Headquarters: San Antonio, TX, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Olumercy Foundation Inc

    EIN 861550696 · Headquarters: San Antonio, TX, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Omega Cares

    EIN 933115564 · Headquarters: SAN ANTONIO, TX, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. Omega Christian Communications

    EIN 463996341 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  41. Omega Phi Fraternity

    EIN 451872892 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  42. Omicron Delta Epsilon International Honor Society in Economics Inc

    EIN 742592848 · Headquarters: San Antonio, TX, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  43. Omicron Delta Epsilon Intl Honor Society in Economics Inc

    EIN 742592854 · Headquarters: San Antonio, TX, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  44. Omicron Kappa Upsilon-honorary Dental Society

    EIN 237451601 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Omnia Youth Chorale

    EIN 871720948 · Headquarters: San Antonio, TX, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  46. On the Block Community Outreach

    EIN 463660372 · Headquarters: SAN ANTONIO, TX, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. On the Rise Movement

    EIN 270732996 · Headquarters: San Antonio, TX, US · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  48. On Top of My Mountain

    EIN 271842597 · Headquarters: San Antonio, TX, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  49. One Common Thread

    EIN 854233139 · Headquarters: SAN ANTONIO, TX, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. One Hope & Healing Counseling Professional Corporation

    EIN 850690072 · Headquarters: San Antonio, TX, US · Mental Health & Crisis Intervention · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  51. One Hope Ministries NFP

    EIN 260194619 · Headquarters: San Antonio, TX, USA · Religion Related · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  52. One Pill Kills Brooke Keith Commission

    EIN 923966958 · Headquarters: San Antonio, TX, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. One Way 4 Life Ministries09

    EIN 825342354 · Headquarters: SAN ANTONIO, TX, US · Religion Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  54. One Way International

    EIN 010560289 · Headquarters: San Antonio, TX, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  55. Oneil Ford Foundation Inc

    EIN 884075058 · Headquarters: San Antonio, TX, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Only A Servant Ministries Inc

    EIN 742867062 · Headquarters: San Antonio, TX, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. Only God Heals Inc

    EIN 472035778 · Headquarters: San Antonio, TX, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  58. Opera Guild of San Antonio

    EIN 742304402 · Headquarters: SAN ANTONIO, TX, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  59. Operation Child Care Project

    EIN 931423550 · Headquarters: San Antonio, TX, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  60. Operation Comfort

    EIN 861123065 · Headquarters: San Antonio, TX, USA · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990

  61. Operation Firewatch Inc

    EIN 844458632 · Headquarters: San Antonio, TX, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Operation Hands on Inc

    EIN 271156284 · Headquarters: San Antonio, TX, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Operation Homefront

    EIN 320033325 · Headquarters: San Antonio, TX, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. Operation Homefront - Texas

    EIN 205427591 · Headquarters: SAN ANTONIO, TX, USA · Housing & Shelter · Latest available filing year: 2012 · Primary form: IRS Form 990

  65. Operation Homefront Inc

    EIN 562324386 · Headquarters: San Antonio, TX, US · Community Improvement & Capacity Building · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  66. Operation Hope for Women Inc

    EIN 470992669 · Headquarters: San Antonio, TX, US · Religion Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  67. Operation Lola Inc

    EIN 853945349 · Headquarters: SAN ANTONIO, TX, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Operation Meatball

    EIN 823601318 · Headquarters: San Antonio, TX, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Operation Oasis Inc

    EIN 900424225 · Headquarters: San Antonio, TX, US · Health Care · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  70. Operation Sheepdog

    EIN 800724946 · Headquarters: San Antonio, TX, USA · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  71. Operation Solace Foundation

    EIN 333302627 · Headquarters: San Antonio, TX, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Operation Threshold

    EIN 884373555 · Headquarters: San Antonio, TX, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. Operation Works of Mercy

    EIN 863776600 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Opmd Association

    EIN 881258710 · Headquarters: SAN ANTONIO, TX, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Opt for Action

    EIN 852784506 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  76. Optimist International

    EIN 237113349 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Optimist International

    EIN 237165758 · Headquarters: San Antonio, TX, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  78. Optimist International

    EIN 364120118 · Headquarters: San Antonio, TX, US · Youth Development · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  79. Optimist International

    EIN 740879460 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Optimist International

    EIN 741478516 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Optimist International

    EIN 746073956 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Optimist International

    EIN 900607091 · Headquarters: San Antonio, TX, US · Youth Development · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  83. Optimist International 06000 Opti Club of Alamo He

    EIN 746062049 · Headquarters: SAN ANTONIO, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Optimist Service Fund San Antonio Inc

    EIN 742455686 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Orchestra De San Antonio

    EIN 931773962 · Headquarters: San Antonio, TX, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Order of the Alamo

    EIN 237123832 · Headquarters: SAN ANTONIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Order of the Alhambra Inc

    EIN 473385450 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Order of the Sons of Hemann in the State of Texas

    EIN 742970045 · Headquarters: SAN ANTONIO, TX, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  89. Order of the Sons of Hermann in the State of Texas

    EIN 237512175 · Headquarters: San Antonio, TX, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  90. Order of the Sons of Hermann in the State of Texas

    EIN 237512208 · Headquarters: San Antonio, TX, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  91. Order of the Sons of Hermann in the State of Texas

    EIN 237512268 · Headquarters: San Antonio, TX, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  92. Order of the Sons of Hermann in the State of Texas

    EIN 237512311 · Headquarters: San Antonio, TX, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  93. Order of the Sons of Hermann in the State of Texas

    EIN 742615625 · Headquarters: San Antonio, TX, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  94. Order of the Sons of Hermann in the State of Texas Grand Lodge

    EIN 742768701 · Headquarters: San Antonio, TX, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  95. Ordinary Miracles Canine Rescue of Texas

    EIN 453009610 · Headquarters: San Antonio, TX, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Organizacion Salvadorena-americana De San Antonio

    EIN 043627221 · Headquarters: San Antonio, TX, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Organization for Black Unity Inc

    EIN 521125416 · Headquarters: SAN ANTONIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  98. Organization of Filipinos in Texas

    EIN 300659761 · Headquarters: San Antonio, TX, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Orifan Aid Inc

    EIN 862929833 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. Orphan Widows Resources International Inc

    EIN 611719972 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

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