Unknown & Unclassified nonprofits in Montana

Unknown & Unclassified nonprofits in Montana. Browse 4,152 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. American Legion Post #13

    EIN 816019068 · Headquarters: Saint Regis, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Legion Post 0012 Richland

    EIN 816016095 · Headquarters: SIDNEY, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Legion Post 0051 Augusta

    EIN 816003258 · Headquarters: AUGUSTA, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. American Legion Post 0081 Thomas Mann

    EIN 816013796 · Headquarters: Culbertson, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. American Legion Post 14 Gallatin Post

    EIN 810137765 · Headquarters: BOZEMAN, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. American Legion Post 16

    EIN 810218265 · Headquarters: LEWISTOWN, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. American Legion Post 41 Valley

    EIN 810225208 · Headquarters: GLASGOW, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. American Legion Post 80

    EIN 816016636 · Headquarters: FAIRFIELD, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. American Legion Post 91 Inc

    EIN 816019105 · Headquarters: Corvallis, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. American Legion Post 94

    EIN 810412955 · Headquarters: Stevensville, MT, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  11. American Legion Rocky Boy Veterans Post

    EIN 753225486 · Headquarters: Box Elder, MT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  12. American Legion Silver Bow Post 1

    EIN 810105615 · Headquarters: Butte, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. American Legion Yellowstone Post 4

    EIN 810105613 · Headquarters: BILLINGS, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. American Marketing Association at Montana State

    EIN 811409391 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. American Nephrology Nurses Association

    EIN 810500827 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Orff-schulwerk Association

    EIN 810490003 · Headquarters: Corvallis, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Outlaws Missoula Chapter Inc

    EIN 821501643 · Headquarters: Florence, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. American Pharmacists Association Academy of Student Pharmacists

    EIN 816013650 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. American Physical Therapy Association Montana Chapter

    EIN 237256199 · Headquarters: MISSOULA, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. American Postal Workers Union

    EIN 237022817 · Headquarters: butte, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. American Postal Workers Union

    EIN 237343060 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  22. American Postal Workers Union

    EIN 237343065 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. American Postal Workers Union

    EIN 810330821 · Headquarters: BILLINGS, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. American Postal Workers Union

    EIN 810464435 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. American Rental Association of Montana Incorporated

    EIN 810468900 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. American Rose Society

    EIN 816017381 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  27. American Simmental Association

    EIN 810422884 · Headquarters: BOZEMAN, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. American Society for Clinical Laboratory Science

    EIN 237433143 · Headquarters: Hamilton, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. American Society for Environmental History

    EIN 840960966 · Headquarters: HELENA, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. American Society for Legal History Inc

    EIN 237225358 · Headquarters: MISSOULA, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. American Society of Addiction Medicine Inc

    EIN 900109767 · Headquarters: missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. American Society of Clu & Chfc

    EIN 363567612 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Society of Heating Refrigerating & A-c Engineers

    EIN 810382325 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. American Society of Radiologic Technologists

    EIN 237101932 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. American Statistical Association

    EIN 521665944 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. American String Teachers Association Incorporated

    EIN 816018489 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. American Sustainability Project

    EIN 272260430 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  38. American Vaulting Association Region Iii

    EIN 202905646 · Headquarters: GREAT FALLS, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Anaconda Community Garden

    EIN 413015516 · Headquarters: Anaconda, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Anaconda Elementary PTA

    EIN 810503705 · Headquarters: ANACONDA, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Anaconda Gun Club

    EIN 816014715 · Headquarters: ANACONDA, MT, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  42. Anaconda Pintler Search and Rescue Inc

    EIN 363851970 · Headquarters: Anaconda, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Anaconda Saddle Club

    EIN 810291175 · Headquarters: Anaconda, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Anaconda Thrift Center

    EIN 810370971 · Headquarters: ANACONDA, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Ancient & Accepted Scottish Rite of Free Masonry So Juris USA

    EIN 810295368 · Headquarters: Livingston, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Ancient & Accepted Scottish Rite of Free Masonry Southern Jurisdiction

    EIN 810163320 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Ancient & Accepted Scottish Rite of Free Masonry Southern Jurisdiction

    EIN 810225255 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Ancient & Accepted Scottish Rite of Free Masonry Southern Jurisdiction

    EIN 810235732 · Headquarters: BUTTE, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Ancient & Accepted Scottish Rite Valley of Great Falls & Coord Bodies

    EIN 810106155 · Headquarters: GREAT FALLS, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Ancient Abrabic Order of the Nobles of the Mystic Shrine of Na

    EIN 237323364 · Headquarters: Butte, MT, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  51. Ancient Arabic Order of the Mobles of the Mystic Shrine of Na

    EIN 237319568 · Headquarters: BUTTE, MT, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  52. Ancient Arabic Order of the Nobles of the Mystic Shrine of Na

    EIN 237321635 · Headquarters: BUTTE, MT, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  53. Ancient Arabic Order of the Nobles of the Mystic Shrine of Na

    EIN 237324890 · Headquarters: BUTTE, MT, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  54. Ancient Arabic Order of the Nobles of the Mystic Shrine of Na

    EIN 810459067 · Headquarters: BUTTE, MT, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  55. Ancient Free & Accepted Mason of Mo Ntana

    EIN 237537196 · Headquarters: BROADUS, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Ancient Free & Accepted Mason of Montana

    EIN 237537086 · Headquarters: VIRGINIA CITY, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Ancient Free & Accepted Mason of Montana

    EIN 237537088 · Headquarters: bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  58. Ancient Free & Accepted Mason of Montana

    EIN 237537092 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Ancient Free & Accepted Mason of Montana

    EIN 237537095 · Headquarters: Whitehall, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Ancient Free & Accepted Mason of Montana

    EIN 237537108 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Ancient Free & Accepted Mason of Montana

    EIN 237537110 · Headquarters: Lewistown, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Ancient Free & Accepted Mason of Montana

    EIN 237537122 · Headquarters: Chinook, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Ancient Free & Accepted Mason of Montana

    EIN 237537143 · Headquarters: Three Forks, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Ancient Free & Accepted Mason of Montana

    EIN 237537162 · Headquarters: Big Sandy, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Ancient Free & Accepted Mason of Montana

    EIN 237537168 · Headquarters: Geraldine, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Ancient Free & Accepted Mason of Montana

    EIN 237537174 · Headquarters: Scobey, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Ancient Free & Accepted Mason of Montana

    EIN 237537203 · Headquarters: Shelby, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Ancient Free & Accepted Mason of Montana

    EIN 237537204 · Headquarters: BALLANTINE, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Ancient Free & Accepted Mason of Montana

    EIN 810106164 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Ancient Free & Accepted Mason of Montana

    EIN 810534572 · Headquarters: BELGRADE, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Ancient Free & Accepted Masons of 22 but Te Lodge

    EIN 237537099 · Headquarters: BUTTE, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. Ancient Free & Accepted Masons Of M Ontana

    EIN 237537114 · Headquarters: Kaiispell, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Ancient Free & Accepted Masons of M Ontana

    EIN 237537124 · Headquarters: FORSYTH, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Ancient Free & Accepted Masons of Montana

    EIN 237347849 · Headquarters: Sidney, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Ancient Free & Accepted Masons of Montana

    EIN 237537089 · Headquarters: White Sulphur Springs, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Ancient Free & Accepted Masons of Montana

    EIN 237537091 · Headquarters: Hall, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Ancient Free & Accepted Masons of Montana

    EIN 237537093 · Headquarters: Deer Lodge, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Ancient Free & Accepted Masons of Montana

    EIN 237537100 · Headquarters: BUTTE, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Ancient Free & Accepted Masons of Montana

    EIN 237537101 · Headquarters: FORT BENTON, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Ancient Free & Accepted Masons of Montana

    EIN 237537102 · Headquarters: Miles City, MT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  81. Ancient Free & Accepted Masons of Montana

    EIN 237537103 · Headquarters: Twin Bridges, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Ancient Free & Accepted Masons of Montana

    EIN 237537104 · Headquarters: STEVENSVILLE, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Ancient Free & Accepted Masons of Montana

    EIN 237537107 · Headquarters: missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Ancient Free & Accepted Masons of Montana

    EIN 237537111 · Headquarters: DARBY, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Ancient Free & Accepted Masons of Montana

    EIN 237537115 · Headquarters: Kalispell, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Ancient Free & Accepted Masons of Montana

    EIN 237537116 · Headquarters: Victor, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Ancient Free & Accepted Masons of Montana

    EIN 237537117 · Headquarters: Choteau, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Ancient Free & Accepted Masons of Montana

    EIN 237537125 · Headquarters: Big Timber, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Ancient Free & Accepted Masons of Montana

    EIN 237537126 · Headquarters: Augusta, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Ancient Free & Accepted Masons of Montana

    EIN 237537127 · Headquarters: Havre, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Ancient Free & Accepted Masons of Montana

    EIN 237537129 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Ancient Free & Accepted Masons of Montana

    EIN 237537131 · Headquarters: Wisdom, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Ancient Free & Accepted Masons of Montana

    EIN 237537132 · Headquarters: Columbus, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Ancient Free & Accepted Masons of Montana

    EIN 237537133 · Headquarters: PLAINS, MT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  95. Ancient Free & Accepted Masons of Montana

    EIN 237537135 · Headquarters: Joliet, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Ancient Free & Accepted Masons of Montana

    EIN 237537138 · Headquarters: BELGRADE, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Ancient Free & Accepted Masons of Montana

    EIN 237537140 · Headquarters: PLAINS, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Ancient Free & Accepted Masons of Montana

    EIN 237537141 · Headquarters: Roundup, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Ancient Free & Accepted Masons of Montana

    EIN 237537142 · Headquarters: Laurel, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Ancient Free & Accepted Masons of Montana

    EIN 237537144 · Headquarters: Terry, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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