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 Alpha Iota Fraternity

    EIN 746084902 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Sigma Alpha Iota Fraternity

    EIN 752274604 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Sigma Alpha Iota Fraternity

    EIN 753114683 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Sigma Alpha Iota Fraternity

    EIN 753114693 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Sigma Alpha Iota Fraternity

    EIN 753114698 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Sigma Alpha Iota Fraternity

    EIN 753114699 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Sigma Alpha Iota Fraternity

    EIN 756027178 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Sigma Alpha Iota Fraternity

    EIN 756036981 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Sigma Alpha Iota Fraternity

    EIN 756036982 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Sigma Alpha Iota Fraternity

    EIN 756037576 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Sigma Alpha Iota Fraternity

    EIN 756038607 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Sigma Alpha Iota Fraternity

    EIN 756060973 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Sigma Alpha Iota Fraternity

    EIN 810548454 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Sigma Alpha Iota Fraternity

    EIN 810548458 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Sigma Alpha Iota Fraternity

    EIN 810872793 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Sigma Alpha Iota Fraternity

    EIN 811003345 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Sigma Alpha Iota Fraternity

    EIN 811291742 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  18. Sigma Alpha Iota Fraternity

    EIN 812167729 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Sigma Alpha Iota Fraternity

    EIN 812495226 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Sigma Alpha Iota Fraternity

    EIN 814368865 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Sigma Alpha Iota Fraternity

    EIN 820639596 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Sigma Alpha Iota Fraternity

    EIN 824125683 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  23. Sigma Alpha Iota Fraternity

    EIN 826009030 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Sigma Alpha Iota Fraternity

    EIN 831698033 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Sigma Alpha Iota Fraternity

    EIN 841682083 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Sigma Alpha Iota Fraternity

    EIN 844701853 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Sigma Alpha Iota Fraternity

    EIN 862201737 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Sigma Alpha Iota Fraternity

    EIN 866053061 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Sigma Alpha Iota Fraternity

    EIN 866054000 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Sigma Alpha Iota Fraternity

    EIN 866054049 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Sigma Alpha Iota Fraternity

    EIN 871554910 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Sigma Alpha Iota Fraternity

    EIN 916037036 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Sigma Alpha Iota Fraternity

    EIN 916058531 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Sigma Alpha Iota Fraternity

    EIN 934743388 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Sigma Alpha Iota Fraternity

    EIN 946107848 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Sigma Alpha Iota Fraternity

    EIN 956047876 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Sigma Alpha Iota Fraternity

    EIN 956095586 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Sigma Alpha Iota Fraternity

    EIN 956120540 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Sigma Alpha Iota Fraternity

    EIN 956139526 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Sigma Alpha Iota Fraternity

    EIN 956156386 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Sigma Alpha Iota Fraternity

    EIN 990698617 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Sigma Alpha Iota Fraternity

    EIN 991200386 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Sigma Alpha Iota Fraternity

    EIN 994965810 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Sigma Alpha Iota International Music Fraternity

    EIN 381543609 · Headquarters: Asheville, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Sigma Alpha Mu

    EIN 150571282 · Headquarters: ITHACA, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Sigma Alpha Mu - Epsilon Delta

    EIN 933526222 · Headquarters: Providence, RI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Sigma Alpha Mu - Sigma Omega Chapter

    EIN 933530200 · Headquarters: Raleigh, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Sigma Alpha Mu at Lsu Housing Organization

    EIN 460576967 · Headquarters: COVINGTON, LA, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  49. Sigma Alpha Mu Endowment Fund Inc

    EIN 521763640 · Headquarters: OWINGS MILLS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Sigma Alpha Mu Foundation Inc

    EIN 136120929 · Headquarters: Cicero, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  51. Sigma Alpha Mu Fraternity

    EIN 222406693 · Headquarters: College Station, TX, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  52. Sigma Alpha Mu Fraternity

    EIN 226101103 · Headquarters: New Brunswick, NJ, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  53. Sigma Alpha Mu Fraternity

    EIN 231373441 · Headquarters: PHILADELPHIA, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Sigma Alpha Mu Fraternity

    EIN 311235014 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  55. Sigma Alpha Mu Fraternity

    EIN 311235016 · Headquarters: TEMPE, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Sigma Alpha Mu Fraternity

    EIN 311235020 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Sigma Alpha Mu Fraternity

    EIN 311235026 · Headquarters: Charlottesville, VA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. Sigma Alpha Mu Fraternity

    EIN 311456989 · Headquarters: Las Vegas, NV, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  59. Sigma Alpha Mu Fraternity

    EIN 350868512 · Headquarters: Bloomington, IN, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  60. Sigma Alpha Mu Fraternity

    EIN 383896375 · Headquarters: TUSCALOOSA, AL, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  61. Sigma Alpha Mu Fraternity

    EIN 475293144 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Sigma Alpha Mu Fraternity

    EIN 510240501 · Headquarters: Davis, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  63. Sigma Alpha Mu Fraternity

    EIN 611041242 · Headquarters: OWENSBORO, KY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  64. Sigma Alpha Mu Fraternity

    EIN 710906546 · Headquarters: Geneseo, NY, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  65. Sigma Alpha Mu Fraternity

    EIN 752592829 · Headquarters: Nacogdoches, TX, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  66. Sigma Alpha Mu Fraternity

    EIN 814026435 · Headquarters: Miami, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Sigma Alpha Mu Fraternity

    EIN 823589226 · Headquarters: Kingston, RI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Sigma Alpha Mu Fraternity

    EIN 861566872 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Sigma Alpha Mu Fraternity

    EIN 911752629 · Headquarters: Rochester, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Sigma Alpha Mu Fraternity Inc

    EIN 131306360 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Sigma Alpha Mu Fraternity Rho Chapter

    EIN 366079310 · Headquarters: Vernon Hills, IL, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  72. Sigma Alpha Mu Fraternity Sigma Sigma Chapter

    EIN 510240500 · Headquarters: BERKELEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  73. Sigma Alpha Mu Fraternity- Delta Zeta Chapter

    EIN 311262778 · Headquarters: Miami, FL, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  74. Sigma Alpha Mu Gamma Epsilon Educational Foundation

    EIN 363780584 · Headquarters: Skokie, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Sigma Alpha Pi of Clarkson College

    EIN 464659846 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Sigma Alpha Pi the National Society of Leadership and Success

    EIN 900435248 · Headquarters: Jacksonville, FL, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  77. Sigma Alpha Professional Agricultural Sorority - Alpha Thet

    EIN 933584401 · Headquarters: Raleigh, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Sigma Alpha Professional Sorority

    EIN 335021329 · Headquarters: Russellville, AR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Sigma Alpha Psi Sorority Inc

    EIN 943466148 · Headquarters: Monticello, MS, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  80. Sigma Alpha Sorority

    EIN 316047264 · Headquarters: BAKERSFIELD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Sigma Alumnae Chapter of Alpha Omega Epsilon Sorority

    EIN 821225637 · Headquarters: Brookhaven, GA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  82. Sigma Alumni Association Corporation Bldg Assoc

    EIN 370750819 · Headquarters: Charleston, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  83. Sigma Alumni Corporation

    EIN 742545927 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Sigma Alumni of Alpha Gamma Rho

    EIN 916034794 · Headquarters: PULLMAN, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Sigma Alumni Society Inc

    EIN 933011050 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Sigma Beta Alumni Association Inc

    EIN 020488842 · Headquarters: DURHAM, NH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. Sigma Beta Fraternity Inc

    EIN 020260431 · Headquarters: DURHAM, NH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Sigma Beta Rho

    EIN 473496109 · Headquarters: Champaign, IL, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  89. Sigma Beta Rho Fraternity Inc

    EIN 472935119 · Headquarters: Richmond, VA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  90. Sigma Beta Rho Fraternity Inc - Rutgers Newark

    EIN 472939014 · Headquarters: Newark, NJ, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  91. Sigma Beta Rho Fraternity Incorporated

    EIN 364807382 · Headquarters: Gainesville, FL, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  92. Sigma Beta Sorority Inc

    EIN 356065180 · Headquarters: DAYTON, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Sigma Building Corporation

    EIN 936031539 · Headquarters: Tigard, OR, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Sigma Chapter House Corporation for Kappa Kappa Gamma Fraternity

    EIN 470732175 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Sigma Chapter of Alpha Chi Omega Fraternity Inc

    EIN 420111611 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Sigma Chapter of Kappa Delta Rho

    EIN 811136853 · Headquarters: Corvallis, OR, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  97. Sigma Chapter of Phi Sigma Delta Educational Foundation

    EIN 231709257 · Headquarters: STATE COLLEGE, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  98. Sigma Chapter of Sigma Tau Gamma Fraternity Foundation Inc

    EIN 261596298 · Headquarters: Little Rock, AR, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  99. Sigma Chi - Alpha Tau Chapter

    EIN 560552581 · Headquarters: Chapel Hill, NC, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  100. Sigma Chi - Alpha Upsilon Chapter

    EIN 951222430 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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