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 Tau Omega

    EIN 611746444 · Headquarters: charleston, SC, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  2. Alpha Tau Omega

    EIN 640412138 · Headquarters: OXFORD, MS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Alpha Tau Omega

    EIN 746079551 · Headquarters: UNION CITY, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Alpha Tau Omega Alpha Phi Chapter

    EIN 576034368 · Headquarters: COLUMBIA, SC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Alpha Tau Omega at LSU

    EIN 820681143 · Headquarters: Baton Rouge, LA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  6. Alpha Tau Omega Beta Delta Chapter

    EIN 630007530 · Headquarters: TUSCALOOSA, AL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Alpha Tau Omega Educational Foundation of Simpson College

    EIN 426081055 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  8. Alpha Tau Omega Foundation Inc

    EIN 237154214 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Alpha Tau Omega Foundation of the University of North Dakota

    EIN 450369746 · Headquarters: Alexandria, MN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Alpha Tau Omega Fraternity

    EIN 010018555 · Headquarters: Orono, ME, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  11. Alpha Tau Omega Fraternity

    EIN 166090259 · Headquarters: Hamilton, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Alpha Tau Omega Fraternity

    EIN 202472978 · Headquarters: AUBURN, AL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Alpha Tau Omega Fraternity

    EIN 251331790 · Headquarters: Indianapolis, IN, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  14. Alpha Tau Omega Fraternity

    EIN 310919238 · Headquarters: Huntington, WV, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  15. Alpha Tau Omega Fraternity

    EIN 314114841 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  16. Alpha Tau Omega Fraternity

    EIN 341205731 · Headquarters: hudson, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. Alpha Tau Omega Fraternity

    EIN 351318705 · Headquarters: Carmel, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Alpha Tau Omega Fraternity

    EIN 363526647 · Headquarters: Lemont, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Alpha Tau Omega Fraternity

    EIN 380293920 · Headquarters: ANN ARBOR, MI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  20. Alpha Tau Omega Fraternity

    EIN 381444642 · Headquarters: ADRIAN, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Alpha Tau Omega Fraternity

    EIN 410706776 · Headquarters: Becker, MN, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  22. Alpha Tau Omega Fraternity

    EIN 450103240 · Headquarters: Fargo, ND, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. Alpha Tau Omega Fraternity

    EIN 520625759 · Headquarters: College Park, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Alpha Tau Omega Fraternity

    EIN 521117609 · Headquarters: College Park, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Alpha Tau Omega Fraternity

    EIN 560548039 · Headquarters: CHAPEL HILL, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  26. Alpha Tau Omega Fraternity

    EIN 580592773 · Headquarters: ATLANTA, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Alpha Tau Omega Fraternity

    EIN 581468500 · Headquarters: Macon, GA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  28. Alpha Tau Omega Fraternity

    EIN 581798399 · Headquarters: Jackson, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Alpha Tau Omega Fraternity

    EIN 616053457 · Headquarters: Murray, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Alpha Tau Omega Fraternity

    EIN 710135253 · Headquarters: Jonesboro, AR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Alpha Tau Omega Fraternity

    EIN 742468113 · Headquarters: GOLDEN, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. Alpha Tau Omega Fraternity

    EIN 756063394 · Headquarters: Canyon, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  33. Alpha Tau Omega Fraternity

    EIN 951689420 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Alpha Tau Omega Fraternity - Eta Psi West Florida

    EIN 592941806 · Headquarters: Pensacola, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Alpha Tau Omega Fraternity - Gamma Omega Chapter

    EIN 256087457 · Headquarters: State College, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Alpha Tau Omega Fraternity Alpha Tota Chapter

    EIN 800488018 · Headquarters: ALLENTOWN, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Alpha Tau Omega Fraternity Delta Lambda Chapter

    EIN 316079721 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  38. Alpha Tau Omega Fraternity Eta Kappa - New Mexico

    EIN 800361755 · Headquarters: ALBUQUQUERQUE, NM, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  39. Alpha Tau Omega Fraternity Eta Nu Middle Tennessee State

    EIN 621657570 · Headquarters: Murfreesboro, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Alpha Tau Omega Fraternity Gamma At

    EIN 350868232 · Headquarters: WEST LAFAYETTE, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Alpha Tau Omega Fraternity Gamma Mu Chapter

    EIN 480544088 · Headquarters: Lawrence, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Alpha Tau Omega Fraternity Inc

    EIN 370152140 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Alpha Tau Omega Fraternity Inc

    EIN 596200513 · Headquarters: JACKSONVILLE BEACH, FL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Alpha Tau Omega Fraternity Kappa Mu Chapter

    EIN 800551392 · Headquarters: JACKSONVILLE, FL, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  45. Alpha Tau Omega Fraternity Kappa Upsilon Chapter

    EIN 464820579 · Headquarters: TAMPA, FL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  46. Alpha Tau Omega Gamma Rho Fraternity

    EIN 430156740 · Headquarters: FRANKLIN, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Alpha Tau Omega House Assoc C/o Edward Hulsy

    EIN 946078276 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Alpha Tau Omega House Corp

    EIN 232705095 · Headquarters: GETTYSBURG, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Alpha Tau Omega House Corp Inc

    EIN 640347323 · Headquarters: BRANDON, MS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Alpha Tau Omega Inc

    EIN 470169613 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Alpha Tau Omega Texas Theta Nu Chapter

    EIN 510219896 · Headquarters: WACO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Alpha Tau Omega Theta Eta Chapter

    EIN 237361368 · Headquarters: FLORENCE, AL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. Alpha Tau Zeta

    EIN 311478904 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Alpha Theta

    EIN 934099534 · Headquarters: Valdosta, GA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  55. Alpha Theta Chapter of Sigma Chi Inc

    EIN 042761368 · Headquarters: Wellesley, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Alpha Theta Delta of Chi Psi Fraternity

    EIN 910569092 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Alpha Theta Fraternity Inc

    EIN 237212257 · Headquarters: ITHACA, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Alpha Theta of Alpha Delta PI

    EIN 916071754 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Alpha Theta Zeta

    EIN 586055988 · Headquarters: Savannah, GA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  60. Alpha Theta Zeta Chapter

    EIN 521345209 · Headquarters: Savannah, GA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  61. Alpha Troop 2-16 Cav

    EIN 822344614 · Headquarters: Fort Benning, GA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  62. Alpha Upsilon Alumni Chapter of the Phi Delta Chi Fraternity

    EIN 341743303 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Alpha Upsilon Alumni Corporation of San Luis Obispo

    EIN 952467125 · Headquarters: NEWARK, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. Alpha Upsilon Chapter of Alpha Chi Omega Fraternity Inc

    EIN 630007480 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Alpha Upsilon House Corporation

    EIN 916057699 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Alpha Upsilon Housing Corporation of Delta Gamma

    EIN 756026665 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Alpha Upsilon of Theta Chi Corp

    EIN 470548139 · Headquarters: LINCOLN, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Alpha Warren Housing Corporation

    EIN 341758199 · Headquarters: Akron, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Alpha Womens Center of Kingwood Inc

    EIN 455207754 · Headquarters: Midlothian, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  70. Alpha Wooster Housing Corporation

    EIN 341762361 · Headquarters: Akron, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Alpha Xi Alumni Association

    EIN 221714007 · Headquarters: Hoboken, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Alpha Xi Building Association Kappa Alpha House Corp

    EIN 946107162 · Headquarters: BERKELEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Alpha Xi Chapter of the Sigma Chi Fraternity

    EIN 486119382 · Headquarters: MISSION HILLS, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Alpha Xi Chapter of Theta Chi

    EIN 393009867 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Alpha Xi Delta

    EIN 383954910 · Headquarters: Indianapolis, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Alpha Xi Delta

    EIN 746063610 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Alpha Xi Delta Alumnae Association Mt Pleasant Iowa

    EIN 800852890 · Headquarters: New London, IA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  78. Alpha Xi Delta Alumnae Association of Indianapolis In

    EIN 863190664 · Headquarters: Indianapolis, IN, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  79. Alpha Xi Delta Alumnae Association of Palm Beach Florida

    EIN 813895272 · Headquarters: Boca Raton, FL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  80. Alpha Xi Delta Alumnae Association of San Diego Ca

    EIN 814091623 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  81. Alpha Xi Delta Alumnae Association of Tampa Florida

    EIN 813989056 · Headquarters: Land O Lakes, FL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. Alpha Xi Delta Auburn-opelika Alumnae Association

    EIN 274634970 · Headquarters: Auburn, AL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  83. Alpha Xi Delta Bldg Corp of College Park

    EIN 520589234 · Headquarters: Beltsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Alpha Xi Delta Building Association

    EIN 476027067 · Headquarters: OMAHA, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Alpha Xi Delta Building Company

    EIN 310850284 · Headquarters: Hilliard, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  86. Alpha Xi Delta Building Corp-gamma Beta

    EIN 550359293 · Headquarters: DALLAS, WV, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Alpha Xi Delta Building Corporation

    EIN 314380303 · Headquarters: MARIETTA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Alpha Xi Delta Building Corporation

    EIN 351698997 · Headquarters: Bloomington, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Alpha Xi Delta Building Corporation

    EIN 391435679 · Headquarters: Waukesha, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Alpha Xi Delta Building Corporation

    EIN 420684823 · Headquarters: IOWA CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Alpha XI Delta Building Corporation

    EIN 466013153 · Headquarters: Yankton, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Alpha Xi Delta Building Corporation

    EIN 593395664 · Headquarters: ORLANDO, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Alpha Xi Delta Building Corporation at Ithaca Inc

    EIN 201533804 · Headquarters: ITHACA, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Alpha Xi Delta Building Corporation of Ada Ohio

    EIN 237083026 · Headquarters: Lorain, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Alpha Xi Delta Building Corporation of Birmingham Alabama Inc

    EIN 721374531 · Headquarters: Chelsea, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Alpha Xi Delta Building Corporation of Cape Girardeau Missouri

    EIN 464722435 · Headquarters: Jackson, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Alpha Xi Delta Building Corporation of Carrollton Georgia Inc

    EIN 581962678 · Headquarters: CARROLLTON, GA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Alpha Xi Delta Building Corporation of Greenville North Carolina

    EIN 560851406 · Headquarters: GREENVILLE, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Alpha Xi Delta Building Corporation of Kent Oh

    EIN 340714847 · Headquarters: KENT, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Alpha Xi Delta Building Corporation of Kingston Rhode Island

    EIN 056013066 · Headquarters: ANDOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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