Unknown & Unclassified nonprofits in Michigan

Unknown & Unclassified nonprofits in Michigan. Browse 16,606 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 Gamma Rho Sorority Inc

    EIN 382261315 · Headquarters: Saginaw, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Sigma Gamma Rho Sorority Inc

    EIN 382597842 · Headquarters: CLAWSON, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Sigma Gamma Rho Sorority Inc

    EIN 383931923 · Headquarters: MT PLEASANT, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Sigma Gamma Rho Sorority Inc

    EIN 386093603 · Headquarters: van Buren Township, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Sigma Gamma Rho Sorority Inc

    EIN 386143407 · Headquarters: DETROIT, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Sigma Gamma Rho Sorority Inc

    EIN 451738771 · Headquarters: KALAMAZOO, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Sigma Gamma Rho Sorority Inc

    EIN 562461509 · Headquarters: Grand Rapids, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Sigma Gamma Rho Sorority Inc

    EIN 593786172 · Headquarters: ROCHESTER, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Sigma Gamma Rho Sorority Inc

    EIN 800312365 · Headquarters: Lansing, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Sigma Gamma Rho Sorority Inc

    EIN 912141079 · Headquarters: Harper Woods, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Sigma Gamma Rho Sorority Inc

    EIN 920443575 · Headquarters: SAGINAW, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Sigma Gamma Rho Sorority- Theta Delta Sigma

    EIN 820789828 · Headquarters: Flint, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Sigma Nu and Delta Chi Rho Association

    EIN 204815266 · Headquarters: Flushing, MI, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  14. Sigma Nu Fraternity

    EIN 380566273 · Headquarters: Albion, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Sigma Nu Fraternity

    EIN 382293910 · Headquarters: FLUSHING, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Sigma Nu Fraternity

    EIN 382826901 · Headquarters: YPSILANTI, MI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  17. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 364127912 · Headquarters: Marysville, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 386120944 · Headquarters: Detroit, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 900705181 · Headquarters: Big Rapids, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Sigma Phi Epsilon Fraternity Inc

    EIN 237259308 · Headquarters: SOUTHFIELD, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Sigma Phi Epsilon Fraternity Inc

    EIN 381782010 · Headquarters: Houghton, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Sigma Phi Epsilon Michigan Gamma Chapter Housing Corporation

    EIN 383227026 · Headquarters: Albion, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Sigma Phi Epsilon Michigan Theta Alumni Association

    EIN 770618059 · Headquarters: Southfield, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Sigma Phi Gamma International Sorority Inc

    EIN 386090154 · Headquarters: Holly, MI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  25. Sigma Pi Fraternity

    EIN 382740821 · Headquarters: SOUTHFIELD, MI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  26. Sigma Pi Fraternity International Inc

    EIN 382371298 · Headquarters: Detroit, MI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  27. Sigma Pi Fraternity International Inc

    EIN 382740811 · Headquarters: Houghton, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Sigma Pi Fraternity International Inc

    EIN 382740823 · Headquarters: Rochester Hills, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Sigma Pi Phi (Iota Boule) Educational Foundation

    EIN 382661313 · Headquarters: BINGHAM FARMS, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Sigma Pi Zeta Chapter - Detroit

    EIN 853609705 · Headquarters: Taylor, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Sigma Rho Incorporated

    EIN 386091453 · Headquarters: HOUGHTON, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Sigma Sigma Sigma Inc

    EIN 274024144 · Headquarters: Mount Pleasant, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Sigma Sigma Sigma Inc

    EIN 464056589 · Headquarters: Grandville, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Sigma Sigma Sigma Inc

    EIN 823305475 · Headquarters: WIXOM, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Sigma Sigma Sigma Inc

    EIN 842922542 · Headquarters: Huntington Woods, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Sigma Theta Tau

    EIN 386115929 · Headquarters: ANN ARBOR, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Sigma Theta Tau Inc

    EIN 237111291 · Headquarters: East Lansing, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Sigma Theta Tau Inc

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

  39. Sigma Theta Tau Inc

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

  40. Sigma Theta Tau Inc

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

  41. Sigma Theta Tau Inc

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

  42. Sigma Theta Tau Inc

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

  43. Sigma Theta Tau Inc

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

  44. Sigma Theta Tau International

    EIN 382956984 · Headquarters: Detroit, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  45. Sigma Theta Tau International Inc

    EIN 363314855 · Headquarters: Berrien Springs, MI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  46. Sigma Theta Tau International Inc

    EIN 881878752 · Headquarters: Owosso, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Sigma Theta Tau International Inc

    EIN 911775006 · Headquarters: Marquette, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  48. Sigma Theta Tau International Inc

    EIN 911935298 · Headquarters: Flint, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  49. Sigma Upsilon Charity Inc

    EIN 383367026 · Headquarters: LANSING, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Sikh Society of Michigan Inc

    EIN 237273095 · Headquarters: STERLING HEIGHTS, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Silent Observer of Kalamazoo County

    EIN 237452457 · Headquarters: KALAMAZOO, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Silva Family Breast Cancer Benefit

    EIN 883918598 · Headquarters: Brighton, MI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  53. Silver Arrows 4-H Club

    EIN 611556575 · Headquarters: Caro, MI, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  54. Silver Spurs

    EIN 300842096 · Headquarters: Coldwater, MI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  55. Silver Spurs 4-H Club

    EIN 320483015 · Headquarters: Scottville, MI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  56. Silver Woods Farms Inc

    EIN 993255185 · Headquarters: ARMADA, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Silverbrook Hunting Club

    EIN 473737993 · Headquarters: Grand Rapids, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Silvercrest Park Association

    EIN 386091454 · Headquarters: Waterford, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Silverwing Foundation Founded by Jay and Betty Van Andel

    EIN 202110480 · Headquarters: Ada, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  60. Simmons Foundation

    EIN 386075922 · Headquarters: ANN ARBOR, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  61. Simons Memorial Scholarship Fnd Inc C/o Margaret Wood

    EIN 382351516 · Headquarters: MT PLEASANT, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Sinch

    EIN 452117262 · Headquarters: Adrian, MI, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  63. Single Squares of Jackson

    EIN 301171871 · Headquarters: Jackson, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  64. Singles for Sailing Inc

    EIN 382377254 · Headquarters: Eastpointe, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Sistas of Compassion

    EIN 464704121 · Headquarters: DETROIT, MI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  66. Sistas on the Move Inc

    EIN 611602916 · Headquarters: Kalamazoo, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Sisters Invoking Success

    EIN 842274328 · Headquarters: Detroit, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Sisters of Jesus the Saviour

    EIN 383423435 · Headquarters: Wayne, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Sisters of the Order of St Dominic

    EIN 381360581 · Headquarters: GRAND RAPIDS, MI, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-T

  70. Sisters United Incorporated

    EIN 811119237 · Headquarters: INKSTER, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Sitting for Joy

    EIN 883789428 · Headquarters: DETROIT, MI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  72. Six Point Club Inc

    EIN 383205390 · Headquarters: ALPENA, MI, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  73. Sizer Stewardship Association

    EIN 393133137 · Headquarters: Harbert, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Skating Academy of Plymouth Inc

    EIN 383557597 · Headquarters: PYMOUTH, MI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  75. Skeels Christian School

    EIN 382080096 · Headquarters: Gladwin, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Skidway Lake Area Chamber of Commerce

    EIN 382294598 · Headquarters: Prescott, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Skidway Lake Chapt 1672 Women of the Moose

    EIN 382320676 · Headquarters: Prescott, MI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  78. Skis N Tees

    EIN 383515454 · Headquarters: LIVONIA, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Skiwi Ski Club Inc

    EIN 383104697 · Headquarters: WARREN, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Sleeping Bear Dunes Visitors Bureau

    EIN 383382249 · Headquarters: GLEN ARBOR, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Sleeping Bear Woods Condominium Association

    EIN 331132424 · Headquarters: FRANKFORT, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Slexc Boys Boosters

    EIN 813094344 · Headquarters: SOUTH LYON, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Slovak Catholic Sokol

    EIN 237522849 · Headquarters: Clinton Twsp, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Sloven National Benefit Society

    EIN 237524618 · Headquarters: Highland, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Slovene American Club

    EIN 381038700 · Headquarters: ALLEN PARK, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Slovene National Benefit Society

    EIN 237524525 · Headquarters: Clio, MI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  87. Slovene National Benefit Society 518

    EIN 237524547 · Headquarters: Oxford, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Slovene National Benefit Society 564

    EIN 237524573 · Headquarters: Roseville, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Slow Food Huron Valley

    EIN 800663395 · Headquarters: ANN ARBOR, MI, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  90. Smacna Metro Detroit Chapter

    EIN 381810154 · Headquarters: TROY, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Small Business Association of Michigan

    EIN 381898699 · Headquarters: LANSING, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Small Business for a Better Michigan

    EIN 824819085 · Headquarters: LANSING, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Small Business for Michigan

    EIN 464032393 · Headquarters: LANSING, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Small Folks Development Center Inc

    EIN 382032151 · Headquarters: LANSING, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Smaller Government Better Government

    EIN 820912893 · Headquarters: LANSING, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  96. SMB Probation Center Inc

    EIN 382828438 · Headquarters: Saginaw, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Smith Academy for Excellence

    EIN 800780625 · Headquarters: OKEMOS, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Smith Family Foundation Trust

    EIN 421281184 · Headquarters: KALAMAZOO, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  99. Smocking Arts Guild of America Inc

    EIN 270944573 · Headquarters: South Lyon, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Smooth Surfaces

    EIN 383320529 · Headquarters: MT PLEASANT, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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