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. Houston Graduate School of Theology

    EIN 760057699 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  2. Houston Great Books Council

    EIN 237109942 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Houston Group Psychotherapy Society

    EIN 237109972 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Houston Gulf Coast Building Construction Trades Counci

    EIN 740693250 · Headquarters: Deer Park, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Houston Gun & Rod Club

    EIN 510326522 · Headquarters: Houston, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Houston Harriers

    EIN 741948212 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. Houston Heights Tower Corporation

    EIN 741711362 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Houston Hemerocallis Society

    EIN 746083462 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Houston High School Volleyball Boosters

    EIN 810610668 · Headquarters: Germantown, TN, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  10. Houston Highway Credit Union

    EIN 741280652 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Houston Hispanic Chamber of Commerce

    EIN 741935123 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. Houston Home of Hope

    EIN 464537126 · Headquarters: FLOWER MOUND, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. Houston Hospice

    EIN 742092951 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. Houston Housing Inc

    EIN 431223243 · Headquarters: Houston, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Houston Independent Auto Dealers Association

    EIN 510191371 · Headquarters: THE WOODLANDS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Houston Independent School District Foundation

    EIN 760424529 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Houston Infectious Diseases Society

    EIN 760672062 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Houston Intercontinental Chamber of Commerce

    EIN 760181765 · Headquarters: THE WOODLANDS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Houston International Folk Dancers

    EIN 760071894 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Houston International Seafarers Center

    EIN 741540312 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Houston Irvington Spanish Church of the Nazarene

    EIN 760345865 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  22. Houston Joint Apprenticeship Training Electrical Train

    EIN 741269780 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Houston Junior Forum Membership

    EIN 741965933 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Houston Kashruth Association Inc

    EIN 760154417 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  25. Houston Kennel Club Inc

    EIN 742064550 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Houston Lady Lions

    EIN 851518956 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Houston Lawyer Referral Services Inc

    EIN 741872485 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Houston Lgbtq Political Caucus

    EIN 760471030 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Houston Light Guard Veterans Association

    EIN 746075520 · Headquarters: Fulshear, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Houston Local Emergency Planning

    EIN 760281114 · Headquarters: cypress, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Houston Lodge Theosophical Society

    EIN 746063617 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Houston Lutherans for Life

    EIN 760252047 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Houston Marathon Committee

    EIN 760040848 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Houston Mayors Committee for the Employment of People with Disabili

    EIN 760200835 · Headquarters: FRIENDSWOOD, TX, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  35. Houston Methodist

    EIN 352410801 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Houston Metro Area Police Foundation Llc

    EIN 834276515 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Houston Metro FOP Lodge 98

    EIN 383773993 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Houston Metropolitan Area Section Ncnw

    EIN 933206558 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. Houston Metropolitan Chap of Texas Assoc of Educational Diagnosticans

    EIN 742203411 · Headquarters: SPRING, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Houston Metropolitan Paralegal Assoc

    EIN 742187858 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. Houston Military Affairs Committee Inc

    EIN 760250516 · Headquarters: SPRING, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Houston Mn Elementary Pta

    EIN 333645225 · Headquarters: Houston, MN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Houston Mortgage Bankers Association

    EIN 746061876 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Houston Neurological Society

    EIN 746060620 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Houston Nine

    EIN 460789684 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  46. Houston Northwest Chamber of Commerce Inc

    EIN 741802047 · Headquarters: SPRING, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Houston Northwest Medical Center Hospital Auxiliary

    EIN 237416365 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Houston Obedience Training Dog Club

    EIN 746078041 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Houston Office Leasing Brokers Association Inc

    EIN 760067302 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  50. Houston Oilmans Bass Club

    EIN 760668888 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  51. Houston Ophthalmological Society

    EIN 237260341 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Houston Organization of Nurse Executives

    EIN 760122921 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. HOUSTON ORGANIZATION OF PUBLIC EMPLOYEES Texas Gulf Coast AFL-CIO Building

    EIN 204967402 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  54. Houston Orthopedic Society

    EIN 741916257 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Houston Otolaryngological Society

    EIN 746061874 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Houston Outlaws Lacrosse Inc

    EIN 273836547 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  57. Houston Palestine Water Assn Inc

    EIN 640663221 · Headquarters: BALDWYN, MS, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  58. Houston Pediatric Society

    EIN 746208614 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Houston Petanque Club

    EIN 208567068 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  60. Houston Plumbers Fishing Tournament

    EIN 834020086 · Headquarters: Conroe, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Houston Podiatric Foundation

    EIN 760398125 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. Houston Police Officers Association Benefit Trust

    EIN 760095984 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Houston Police Officers Union Inc

    EIN 760528280 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Houston Police Org of Spanish Speaking Officers

    EIN 760144190 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  65. Houston Privae Equity Association

    EIN 760259268 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  66. Houston Producers' Forum

    EIN 760061267 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Houston Professional Baseball Academy

    EIN 823162516 · Headquarters: KATY, TX, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  68. Houston Professional Fire Fighters Association IAFF Local 341

    EIN 237009050 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Houston Promotional Products Association

    EIN 760232601 · Headquarters: McKinney, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. Houston Psychiatric Society

    EIN 510212972 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Houston Psychological Association

    EIN 237138928 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Houston Public Money Fund

    EIN 332519308 · Headquarters: La Porte, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Houston Racing Club

    EIN 760423210 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Houston Radiological Society

    EIN 237355945 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Houston Ragas

    EIN 813577895 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  76. Houston Real Estate Association

    EIN 741610106 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Houston Real Estate Council

    EIN 760374063 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. Houston Regional Users Group

    EIN 473424696 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  79. Houston Rescue Squad Inc

    EIN 834411224 · Headquarters: HOUSTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  80. Houston Resource Management Association

    EIN 760117771 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Houston Riders Cricket Club Inc

    EIN 260252336 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  82. Houston Run Community Center

    EIN 472523592 · Headquarters: East Earl, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Houston Rv Dealers of Texas

    EIN 203431971 · Headquarters: Katy, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. Houston S F Cdrl Ch Christ Tw

    EIN 236423228 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  85. Houston Safari Club

    EIN 760082197 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Houston Saturday Greysheet Meeting

    EIN 471607252 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  87. Houston Scottish Rite Learning Center Inc

    EIN 760295847 · Headquarters: Bellaire, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  88. Houston Sheet Metal Contractors Association

    EIN 741390667 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. Houston Slb Spouses Association

    EIN 932817082 · Headquarters: KINGWOOD, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Houston Society of Association Executives

    EIN 760071860 · Headquarters: Katy, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Houston Society of Clinical Pathology

    EIN 237311992 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  92. Houston Society of Emergency Medicine

    EIN 760233851 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Houston Society of Oral and Maxillofacial Surgeons

    EIN 742093686 · Headquarters: Pearland, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Houston Society of Plastic Surgeons

    EIN 760092998 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Houston Songwriters Association

    EIN 742560694 · Headquarters: Sugar Land, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Houston Space City Athletics Inc

    EIN 332301325 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Houston Space Society Inc

    EIN 760295630 · Headquarters: Katy, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Houston Sport Flyers

    EIN 311813399 · Headquarters: Spring, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Houston Squash Racquets Association

    EIN 760417583 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. Houston Street Development Corporation

    EIN 510557931 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

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