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. Alpha Omega International Dental Fraternity

    EIN 270259668 · Headquarters: Indianapolis, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Alpha Omega International Dental Fraternity

    EIN 270260752 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  3. Alpha Omega International Dental Fraternity

    EIN 611276503 · Headquarters: Crestwood, KY, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  4. Alpha Omega International Dental Fraternity Inc

    EIN 346575895 · Headquarters: Medina, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Alpha Omega International Dental Fraternity Inc

    EIN 752506326 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Alpha Omega Theta Inc

    EIN 800794500 · Headquarters: Canadensis, PA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  7. Alpha Omicorn Pi Fraternity Inc

    EIN 510577197 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  8. Alpha Omicron Building Corporation

    EIN 860473444 · Headquarters: TUCSON, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Alpha Omicron Chapter of Alpha Chi Omega Fraternity

    EIN 314114767 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Alpha Omicron Chapter of Delta Kappa Epsilon Fraternity

    EIN 932830954 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  11. Alpha Omicron Chapter of Mu Phi Epsilon

    EIN 473598298 · Headquarters: Fort Collins, CO, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  12. Alpha Omicron of Alpha Delta Pi Building Corporation

    EIN 736103129 · Headquarters: EDMOND, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Alpha Omicron of Chi Psi Corporation

    EIN 541075110 · Headquarters: CHESAPEAKE, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Alpha Omicron Pi - Clarksville-hopkinsville Alumnae C

    EIN 994585033 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Alpha Omicron Pi - Fort Worth Area Alumnae

    EIN 851956666 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Alpha Omicron Pi - Gainesville Alumnae Chapter

    EIN 413899890 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Alpha Omicron Pi - Oxford Area Alumnae Chapter

    EIN 874738895 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  18. Alpha Omicron Pi - Sandhills Alumnae Chapter

    EIN 932836359 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  19. Alpha Omicron Pi - Stillwater Area Alumnae Chapter

    EIN 413929092 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Alpha Omicron Pi Fraternity

    EIN 237046541 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Alpha Omicron Pi Fraternity

    EIN 310983063 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  22. Alpha Omicron Pi Fraternity Inc

    EIN 010345989 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  23. Alpha Omicron Pi Fraternity Inc

    EIN 016019037 · Headquarters: Orono, ME, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  24. Alpha Omicron Pi Fraternity Inc

    EIN 030416890 · Headquarters: Winter Park, FL, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  25. Alpha Omicron Pi Fraternity Inc

    EIN 030421833 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  26. Alpha Omicron Pi Fraternity Inc

    EIN 042998098 · Headquarters: Melrose, MA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  27. Alpha Omicron Pi Fraternity Inc

    EIN 043621433 · Headquarters: Natchitoches, LA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  28. Alpha Omicron Pi Fraternity Inc

    EIN 043631875 · Headquarters: Orlando, FL, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  29. Alpha Omicron Pi Fraternity Inc

    EIN 046074033 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Alpha Omicron Pi Fraternity Inc

    EIN 061625441 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Alpha Omicron Pi Fraternity Inc

    EIN 136162700 · Headquarters: Staten Island, NY, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  32. Alpha Omicron Pi Fraternity Inc

    EIN 150572089 · Headquarters: Oneonta, NY, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  33. Alpha Omicron Pi Fraternity Inc

    EIN 161549715 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Alpha Omicron Pi Fraternity Inc

    EIN 201497357 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  35. Alpha Omicron Pi Fraternity Inc

    EIN 226063196 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Alpha Omicron Pi Fraternity Inc

    EIN 232984943 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Alpha Omicron Pi Fraternity Inc

    EIN 236295844 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Alpha Omicron Pi Fraternity Inc

    EIN 237003888 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Alpha Omicron Pi Fraternity Inc

    EIN 237004114 · Headquarters: Slippery Rock, PA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  40. Alpha Omicron Pi Fraternity Inc

    EIN 237009709 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  41. Alpha Omicron Pi Fraternity Inc

    EIN 237027215 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Alpha Omicron Pi Fraternity Inc

    EIN 237033019 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Alpha Omicron Pi Fraternity Inc

    EIN 237059956 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Alpha Omicron Pi Fraternity Inc

    EIN 237062590 · Headquarters: East Stroudsburg, PA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  45. Alpha Omicron Pi Fraternity Inc

    EIN 237082623 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Alpha Omicron Pi Fraternity Inc

    EIN 237086675 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  47. Alpha Omicron Pi Fraternity Inc

    EIN 237086679 · Headquarters: Cedar Rapids, IA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  48. Alpha Omicron Pi Fraternity Inc

    EIN 237109133 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Alpha Omicron Pi Fraternity Inc

    EIN 237115303 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  50. Alpha Omicron Pi Fraternity Inc

    EIN 237116888 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  51. Alpha Omicron Pi Fraternity Inc

    EIN 237124768 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Alpha Omicron Pi Fraternity Inc

    EIN 237164965 · Headquarters: Hammond, LA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  53. Alpha Omicron Pi Fraternity Inc

    EIN 237176089 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Alpha Omicron Pi Fraternity Inc

    EIN 237222243 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Alpha Omicron Pi Fraternity Inc

    EIN 237222244 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Alpha Omicron Pi Fraternity Inc

    EIN 237290304 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Alpha Omicron Pi Fraternity Inc

    EIN 237291217 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Alpha Omicron Pi Fraternity Inc

    EIN 237304345 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Alpha Omicron Pi Fraternity Inc

    EIN 237305827 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Alpha Omicron Pi Fraternity Inc

    EIN 237306840 · Headquarters: Staten Island, NY, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  61. Alpha Omicron Pi Fraternity Inc

    EIN 237360800 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Alpha Omicron Pi Fraternity Inc

    EIN 237360806 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Alpha Omicron Pi Fraternity Inc

    EIN 237360813 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Alpha Omicron Pi Fraternity Inc

    EIN 237360815 · Headquarters: LaGrange, GA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  65. Alpha Omicron Pi Fraternity Inc

    EIN 237361235 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Alpha Omicron Pi Fraternity Inc

    EIN 237361238 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Alpha Omicron Pi Fraternity Inc

    EIN 237361242 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Alpha Omicron Pi Fraternity Inc

    EIN 237368057 · Headquarters: Ruston, LA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  69. Alpha Omicron Pi Fraternity Inc

    EIN 237384699 · Headquarters: Norcross, GA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  70. Alpha Omicron Pi Fraternity Inc

    EIN 237425246 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  71. Alpha Omicron Pi Fraternity Inc

    EIN 251502007 · Headquarters: Shippensburg, PA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  72. Alpha Omicron Pi Fraternity Inc

    EIN 251532804 · Headquarters: Timonium, MD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  73. Alpha Omicron Pi Fraternity Inc

    EIN 260063546 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Alpha Omicron Pi Fraternity Inc

    EIN 260069783 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Alpha Omicron Pi Fraternity Inc

    EIN 260099954 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  76. Alpha Omicron Pi Fraternity Inc

    EIN 300514243 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Alpha Omicron Pi Fraternity Inc

    EIN 300517172 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  78. Alpha Omicron Pi Fraternity Inc

    EIN 300524822 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Alpha Omicron Pi Fraternity Inc

    EIN 300534293 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  80. Alpha Omicron Pi Fraternity Inc

    EIN 300553478 · Headquarters: Wildwood, MO, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  81. Alpha Omicron Pi Fraternity Inc

    EIN 300569810 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Alpha Omicron Pi Fraternity Inc

    EIN 300590134 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  83. Alpha Omicron Pi Fraternity Inc

    EIN 300623191 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  84. Alpha Omicron Pi Fraternity Inc

    EIN 310360591 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  85. Alpha Omicron Pi Fraternity Inc

    EIN 310983056 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  86. Alpha Omicron Pi Fraternity Inc

    EIN 310983057 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Alpha Omicron Pi Fraternity Inc

    EIN 311040167 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Alpha Omicron Pi Fraternity Inc

    EIN 311127750 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  89. Alpha Omicron Pi Fraternity Inc

    EIN 311376016 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  90. Alpha Omicron Pi Fraternity Inc

    EIN 311576337 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Alpha Omicron Pi Fraternity Inc

    EIN 316049452 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Alpha Omicron Pi Fraternity Inc

    EIN 316050595 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Alpha Omicron Pi Fraternity Inc

    EIN 316050641 · Headquarters: Oxford, OH, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  94. Alpha Omicron Pi Fraternity Inc

    EIN 320079878 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Alpha Omicron Pi Fraternity Inc

    EIN 320217238 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Alpha Omicron Pi Fraternity Inc

    EIN 320278627 · Headquarters: Clemmons, NC, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  97. Alpha Omicron Pi Fraternity Inc

    EIN 320301511 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  98. Alpha Omicron Pi Fraternity Inc

    EIN 320302929 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  99. Alpha Omicron Pi Fraternity Inc

    EIN 320307331 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Alpha Omicron Pi Fraternity Inc

    EIN 330830953 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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