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. Musselshell County Council on Aging Inc

    EIN 810388229 · Headquarters: Roundup, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Musselshell County Food Bank Inc

    EIN 810436361 · Headquarters: Roundup, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Musselshell Unity Drive

    EIN 810409290 · Headquarters: Roundup, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Musselshell Valley Historical Museum Inc

    EIN 237351074 · Headquarters: Roundup, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Mystic Lake Ditch Co

    EIN 810476796 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Naifa Montana Southeastern

    EIN 263720977 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  7. National Active and Retired Federal Employees Association

    EIN 237160355 · Headquarters: Kalispell, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. National Active and Retired Federal Employees Association

    EIN 581967814 · Headquarters: Libby, MT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  9. National Active and Retired Federal Employees Association

    EIN 810408749 · Headquarters: Bridger, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. National Active and Retired Federal Employees Association

    EIN 810421152 · Headquarters: Lewistown, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. National Active and Retired Federal Employees Association

    EIN 816018472 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. National Active and Retired Federal Employees Association

    EIN 816018473 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. National Active and Retired Federal Employees Association

    EIN 816018474 · Headquarters: Anaconda, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. National Air Traffic Controllers Association

    EIN 810453647 · Headquarters: HELENA, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. National Air Traffic Controllers Association

    EIN 810455754 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. National Air Traffic Controllers Association

    EIN 810457756 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. National Association of Fsa County Office Employees

    EIN 816013922 · Headquarters: Lewistown, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. National Association of Insurance & Financial Advisors - Montana

    EIN 237297340 · Headquarters: KALISPELL, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. National Association of Letter Carriers

    EIN 237061608 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. National Association of Letter Carriers

    EIN 816018454 · Headquarters: PLENTYWOOD, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. National Association of Letter Carriers

    EIN 816018458 · Headquarters: Deer Lodge, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. National Association of Letter Carriers

    EIN 816018470 · Headquarters: Butte, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. National Association of Letter Carriers 1643 Glendive Montana

    EIN 261898432 · Headquarters: GLENDIVE, MT, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  24. National Association of Rehabilitation Research & Training Centers Inc

    EIN 593122657 · Headquarters: MISSOULA, MT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  25. National Association of Retired & Veteran Railway Employees

    EIN 251774637 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. National Association of Women in Construction

    EIN 853543239 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. National Exchange Club

    EIN 205527734 · Headquarters: BILLINGS, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. National Exchange Club

    EIN 821769390 · Headquarters: Laurel, MT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  29. National Exchange Club

    EIN 825119412 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. National Exchange Club

    EIN 851484944 · Headquarters: Kalispell, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. National Exchange Club

    EIN 921117696 · Headquarters: BILLINGS, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. National Exchange Club 1752 Great Falls Mt

    EIN 816013710 · Headquarters: GREAT FALLS, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. National Exchange Club Heights Exchange Club Billings Mt

    EIN 810414939 · Headquarters: BILLINGS, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. National Exchange Club of Butte MT

    EIN 810601140 · Headquarters: Butte, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. National Kitchen & Bath Assoc

    EIN 810491469 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. National Marine Corps League Convention 2019 Inc

    EIN 823095309 · Headquarters: BILLINGS, MT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  37. National Museum of Forest Service History

    EIN 810454269 · Headquarters: MISSOULA, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  38. National Organization of Mothers of Twins Clubs Inc

    EIN 061773267 · Headquarters: BILLINGS, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. National Postal Mail Handlers Local Union No 327

    EIN 810340493 · Headquarters: BILLINGS, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. National Retriever Club Inc

    EIN 431209162 · Headquarters: Ennis, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. National Ski Patrol System Inc

    EIN 237253506 · Headquarters: MISSOULA, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. National Smokejumper Association

    EIN 810479209 · Headquarters: Missoula, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. National Society of the Colonial Dames of America State of Wyoming

    EIN 830262971 · Headquarters: HARDIN, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. National Society of the Daughters of the American Revolution

    EIN 320400565 · Headquarters: RONAN, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. National Society of the Daughters of the American Revolution

    EIN 810388114 · Headquarters: Butte, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Society of the Daughters of the American Revolution

    EIN 810388142 · Headquarters: Lolo, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. National Society of the Daughters of the American Revolution

    EIN 810388143 · Headquarters: JEFFERSON CITY, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. National Society of the Daughters of the American Revolution

    EIN 810388278 · Headquarters: Huntley, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. National Society of the Daughters of the American Revolution

    EIN 816013776 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. National Society of the Daughters of the American Revolution

    EIN 816013950 · Headquarters: Lewistown, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. National Society of the Daughters of the American Revolution

    EIN 816014316 · Headquarters: Malta, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. National Society of the Daughters of the American Revolution

    EIN 816014348 · Headquarters: Whitefish, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. National Society of the Sons of the American Revolution

    EIN 810454580 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  54. National Society of the Sons of the American Revolution

    EIN 810496642 · Headquarters: Harlowton, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. National Society United States Daughters of 1812

    EIN 862187615 · Headquarters: Lewistown, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. National Star Route Mail Contractors Association

    EIN 810366064 · Headquarters: Turner, MT, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  57. National Treasury Employees Union

    EIN 816013848 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Naval Reserve Association Inc

    EIN 237427697 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Networking Exchange Club of Billings Mt

    EIN 883357669 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  60. Nevada Physical Therapy Association

    EIN 880132607 · Headquarters: Missoula, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. New Approach Montana

    EIN 843244528 · Headquarters: Helena, MT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  62. New Horizons Unlimited

    EIN 810359612 · Headquarters: HARLEM, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. New Life Center United Pentecostal Church

    EIN 382669571 · Headquarters: Kalispell, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. New Life Fellowship of Montana Inc Trails End Ranch

    EIN 810381806 · Headquarters: EKALAKA, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Newlon Cemetery Association

    EIN 394968531 · Headquarters: Sidney, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Nibs and Edna Allen Foundation

    EIN 810480143 · Headquarters: MILES CITY, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  67. Nilan Water Users Association

    EIN 810243731 · Headquarters: AUGUSTA, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Nineatit Foundation

    EIN 920959241 · Headquarters: SIMMS, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  69. Ninth District Dental Society

    EIN 816016510 · Headquarters: BILLINGS, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. Nomad Science Mongolia Inc

    EIN 853823784 · Headquarters: GLEN, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. Nordic Pines Corporation

    EIN 473745531 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Normont Lodge Number 507 Building Association Inc

    EIN 823956455 · Headquarters: CUT BANK, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. North American Clinical Dermatologic Society Inc

    EIN 046118561 · Headquarters: Bozeman, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  74. North American Folk Music and Dance Alliance Inc

    EIN 841736421 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  75. North American Gaming Regulators Association

    EIN 363353198 · Headquarters: MISSOULA, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. North American Montessori Teachers Association

    EIN 521054307 · Headquarters: HELENA, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. North Central Montana Stockgrowers Association

    EIN 816016030 · Headquarters: Chinook, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. North Flathead Yacht Club

    EIN 810358284 · Headquarters: SOMERS, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. North Fork Landowners Association

    EIN 810416858 · Headquarters: Columbia Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. North Haven Heights Water Association Inc

    EIN 810371123 · Headquarters: Kalispell, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. North Montana Angus Association

    EIN 810383361 · Headquarters: GREAT FALLS, MT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  82. North Valley Emergency Medical Services Inc

    EIN 810400122 · Headquarters: Opheim, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. North Valley Rescue Association Inc

    EIN 237438958 · Headquarters: Columbia Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. North Valley Sportsman Club

    EIN 810510945 · Headquarters: Columbia Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  85. Northcentral Montana Cattlewomen Inc

    EIN 363841061 · Headquarters: Lloyd, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Northeast Neighborhood Association

    EIN 030516393 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Northern Division Amateur Ski Ed Fnd Co Slopeside Cpas & Advisors

    EIN 237068827 · Headquarters: BIG SKY, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Northern Great Plains Section of the Society for Range Management

    EIN 450418014 · Headquarters: Miles City, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Northern Internat'l Livestock Exposition

    EIN 810301182 · Headquarters: Billings, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Northern Middle Schools Athletic Assoc

    EIN 461426628 · Headquarters: Fairfield, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  91. Northern Montana Health Care Foundation Inc

    EIN 363464641 · Headquarters: HAVRE, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Northern Montana Health Care Inc

    EIN 810428854 · Headquarters: HAVRE, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Northern Plains Resource Council

    EIN 260065964 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Northern Plains Resource Council

    EIN 263744709 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Northern Plains Resource Council

    EIN 363939756 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Northern Plains Resource Council

    EIN 363939758 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Northern Plains Resource Council

    EIN 363939792 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Northern Plains Resource Council

    EIN 462407346 · Headquarters: Lewistown, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Northern Plains Resource Council

    EIN 473657903 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Northern Plains Resource Council

    EIN 810367205 · Headquarters: Billings, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

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