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. Sigma Theta Tau Inc

    EIN 363314822 · Headquarters: EVANSVILLE, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Sigma Theta Tau Inc

    EIN 363314825 · Headquarters: Camden, NJ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Sigma Theta Tau Inc

    EIN 363314834 · Headquarters: Corpus Christi, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Sigma Theta Tau Inc

    EIN 363314841 · Headquarters: Canton, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Sigma Theta Tau Inc

    EIN 363314845 · Headquarters: Salem, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Sigma Theta Tau Inc

    EIN 363314846 · Headquarters: Grand Forks, ND, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Sigma Theta Tau Inc

    EIN 363314847 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  8. Sigma Theta Tau Inc

    EIN 363314848 · Headquarters: Marion, IN, SM · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Sigma Theta Tau Inc

    EIN 363314850 · Headquarters: Arden, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Sigma Theta Tau Inc

    EIN 363314851 · Headquarters: Lowell, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Sigma Theta Tau Inc

    EIN 363314853 · Headquarters: Apollo Beach, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Sigma Theta Tau Inc

    EIN 363314854 · Headquarters: Dover, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Sigma Theta Tau Inc

    EIN 363314862 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Sigma Theta Tau Inc

    EIN 363314864 · Headquarters: Chester, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Sigma Theta Tau Inc

    EIN 363314867 · Headquarters: Arlington, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Sigma Theta Tau Inc

    EIN 363314870 · Headquarters: Bronx, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Sigma Theta Tau Inc

    EIN 363314873 · Headquarters: WILKES BARRE, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Sigma Theta Tau Inc

    EIN 363478865 · Headquarters: Utica, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Sigma Theta Tau Inc

    EIN 363479038 · Headquarters: Jackson, MS, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Sigma Theta Tau Inc

    EIN 363479043 · Headquarters: Milledgeville, GA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  21. Sigma Theta Tau Inc

    EIN 363479044 · Headquarters: Pocatello, ID, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Sigma Theta Tau Inc

    EIN 363479045 · Headquarters: Dallas, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Sigma Theta Tau Inc

    EIN 363479046 · Headquarters: University Center, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Sigma Theta Tau Inc

    EIN 363479048 · Headquarters: Rochester, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Sigma Theta Tau Inc

    EIN 363479050 · Headquarters: DULUTH, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Sigma Theta Tau Inc

    EIN 363479053 · Headquarters: Richmond, KY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Sigma Theta Tau Inc

    EIN 363479061 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Sigma Theta Tau Inc

    EIN 363479066 · Headquarters: Dartmouth, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  29. Sigma Theta Tau Inc

    EIN 363479069 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Sigma Theta Tau Inc

    EIN 363479076 · Headquarters: Fremont, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Sigma Theta Tau Inc

    EIN 363479078 · Headquarters: Wayne, NJ, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  32. Sigma Theta Tau Inc

    EIN 363479079 · Headquarters: Cookeville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Sigma Theta Tau Inc

    EIN 363479081 · Headquarters: Louisville, KY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Sigma Theta Tau Inc

    EIN 363479085 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Sigma Theta Tau Inc

    EIN 363479086 · Headquarters: Louisville, KY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Sigma Theta Tau Inc

    EIN 363479088 · Headquarters: Long Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Sigma Theta Tau Inc

    EIN 363479089 · Headquarters: Troy, AL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Sigma Theta Tau Inc

    EIN 363479091 · Headquarters: Bloomsburg, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. Sigma Theta Tau Inc

    EIN 363479096 · Headquarters: Orlando, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Sigma Theta Tau Inc

    EIN 363479103 · Headquarters: AUBURN UNIV, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Sigma Theta Tau Inc

    EIN 366206051 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Sigma Theta Tau Inc

    EIN 382819739 · Headquarters: Livonia, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Sigma Theta Tau Inc

    EIN 382981905 · Headquarters: Grand Rapids, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Sigma Theta Tau Inc

    EIN 383075441 · Headquarters: Ogden, UT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Sigma Theta Tau Inc

    EIN 386093218 · Headquarters: Farmington Hills, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Sigma Theta Tau Inc

    EIN 391490392 · Headquarters: Shorewood, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Sigma Theta Tau Inc

    EIN 391490393 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Sigma Theta Tau Inc

    EIN 426076448 · Headquarters: Washington, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Sigma Theta Tau Inc

    EIN 436066448 · Headquarters: Columbia, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Sigma Theta Tau Inc

    EIN 466017299 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Sigma Theta Tau Inc

    EIN 486127009 · Headquarters: KANSAS CITY, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Sigma Theta Tau Inc

    EIN 510163885 · Headquarters: Chapel Hill, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Sigma Theta Tau Inc

    EIN 510232358 · Headquarters: Birmingham, AL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Sigma Theta Tau Inc

    EIN 510232359 · Headquarters: Niagara University, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Sigma Theta Tau Inc

    EIN 510232360 · Headquarters: Charlotte, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Sigma Theta Tau Inc

    EIN 510232362 · Headquarters: Hattiesburg, MS, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. Sigma Theta Tau Inc

    EIN 510232364 · Headquarters: Nutley, NJ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Sigma Theta Tau Inc

    EIN 510232368 · Headquarters: Salt Lake City, UT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Sigma Theta Tau Inc

    EIN 510232372 · Headquarters: Pittsburg, KS, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  60. Sigma Theta Tau Inc

    EIN 510232373 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Sigma Theta Tau Inc

    EIN 510232374 · Headquarters: Knoxville, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Sigma Theta Tau Inc

    EIN 510232376 · Headquarters: Richmond, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Sigma Theta Tau Inc

    EIN 526056438 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Sigma Theta Tau Inc

    EIN 526063800 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Sigma Theta Tau Inc

    EIN 541146745 · Headquarters: Hampton, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Sigma Theta Tau Inc

    EIN 550602437 · Headquarters: Buckannon, WV, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Sigma Theta Tau Inc

    EIN 550719642 · Headquarters: Huntington, WV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Sigma Theta Tau Inc

    EIN 556035445 · Headquarters: Morgantown, WV, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Sigma Theta Tau Inc

    EIN 561282882 · Headquarters: Greensboro, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Sigma Theta Tau Inc

    EIN 576034130 · Headquarters: Columbia, SC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Sigma Theta Tau Inc

    EIN 581304938 · Headquarters: North Augusta, SC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  72. Sigma Theta Tau Inc

    EIN 586049950 · Headquarters: Atlanta, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Sigma Theta Tau Inc

    EIN 610976500 · Headquarters: Lexington, KY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  74. Sigma Theta Tau Inc

    EIN 610976550 · Headquarters: Murray, KY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Sigma Theta Tau Inc

    EIN 611141638 · Headquarters: Bowling Green, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Sigma Theta Tau Inc

    EIN 621092019 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  77. Sigma Theta Tau Inc

    EIN 621092035 · Headquarters: Troy, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Sigma Theta Tau Inc

    EIN 621092037 · Headquarters: Rochester, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Sigma Theta Tau Inc

    EIN 621092039 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  80. Sigma Theta Tau Inc

    EIN 621092062 · Headquarters: WICHITA, KS, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Sigma Theta Tau Inc

    EIN 621092107 · Headquarters: tampa, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Sigma Theta Tau Inc

    EIN 621092108 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Sigma Theta Tau Inc

    EIN 621092183 · Headquarters: Austin, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Sigma Theta Tau Inc

    EIN 621092199 · Headquarters: El Paso, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Sigma Theta Tau Inc

    EIN 621092202 · Headquarters: Providence, RI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Sigma Theta Tau Inc

    EIN 621092203 · Headquarters: Amarillo, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Sigma Theta Tau Inc

    EIN 621092240 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Sigma Theta Tau Inc

    EIN 621092317 · Headquarters: Spokane, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Sigma Theta Tau Inc

    EIN 626048176 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Sigma Theta Tau Inc

    EIN 636050958 · Headquarters: Birmingham, AL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Sigma Theta Tau Inc

    EIN 746070570 · Headquarters: Galveston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Sigma Theta Tau Inc

    EIN 846050505 · Headquarters: Centennial, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Sigma Theta Tau Inc

    EIN 860421020 · Headquarters: Phoenix, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Sigma Theta Tau Inc

    EIN 930680969 · Headquarters: Portland, OR, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. Sigma Theta Tau Inc

    EIN 930764502 · Headquarters: Canyon Lake, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Sigma Theta Tau Inc

    EIN 930800158 · Headquarters: Durham, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Sigma Theta Tau Inc

    EIN 930800161 · Headquarters: Greenville, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Sigma Theta Tau Inc

    EIN 930800172 · Headquarters: SHREVEPORT, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Sigma Theta Tau Inc

    EIN 930800173 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Sigma Theta Tau Inc

    EIN 930800176 · Headquarters: Summerville, SC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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