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. Northern Plains Resource Council

    EIN 810427228 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Northern Plains Resource Council

    EIN 810488209 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Northern Plains Resource Council

    EIN 841434251 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Northern Plains Resource Council

    EIN 881346763 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Northern Rockies Baseball Foundation Inc

    EIN 465285836 · Headquarters: MISSOULA, MT, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  6. Northern Rocky Mountain Retiree Association Inc

    EIN 810448415 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Northern Women's Rodeo Association

    EIN 830327302 · Headquarters: Billings, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Northwest Montana Arms Collectors Association

    EIN 810492154 · Headquarters: KALISPELL, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  9. Northwest Montana Head Start Inc

    EIN 237056959 · Headquarters: KALISPELL, MT, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  10. Northwest Montana Historical Society Inc

    EIN 810439232 · Headquarters: KALISPELL, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Northwest Montana Retriever Club

    EIN 471399311 · Headquarters: RONAN, MT, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  12. Northwest Retired Education

    EIN 870801052 · Headquarters: Whitefish, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Northwest Section of the Ninety Nines

    EIN 810362602 · Headquarters: Corvallis, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Northwestern National Military Museum & Foundation Inc

    EIN 363788061 · Headquarters: Hardin, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Norwell Fund

    EIN 366063686 · Headquarters: Big Timber, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. Nose Work Breakfast Club

    EIN 831527822 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Noxon Senior Citizens Inc

    EIN 810396442 · Headquarters: noxon, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Nw Montana Association of Realtors Inc

    EIN 810395155 · Headquarters: KALISPELL, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. NW Shed Haulers Bash

    EIN 831345214 · Headquarters: Eureka, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Odigos Incorporated

    EIN 872551490 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  21. Oil Basin Pipeliners Union

    EIN 237115016 · Headquarters: Laurel, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Old Baldy Recreation Association

    EIN 810391790 · Headquarters: Townsend, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. Old Hale Ditch Company

    EIN 816013731 · Headquarters: Three Forks, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. One-millionorg Foundation

    EIN 883880394 · Headquarters: WHITEFISH, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  25. One-one-one-center Incorporated

    EIN 810417298 · Headquarters: GREAT FALLS, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Op & We Edwards Foundation Inc

    EIN 136100965 · Headquarters: RED LODGE, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  27. Open Gate Ranch

    EIN 363584023 · Headquarters: Trout Creek, MT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  28. Open Space Institute

    EIN 911734016 · Headquarters: Stevensville, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Operation Round-Up

    EIN 863106116 · Headquarters: Missoula, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  30. Opportunity Resources Inc

    EIN 810247708 · Headquarters: Missoula, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Optimist International

    EIN 237010140 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Optimist International

    EIN 810380040 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Optimist International

    EIN 810447277 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Optimist International

    EIN 816006617 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  35. Optimist International

    EIN 816012096 · Headquarters: Havre, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Optimist International

    EIN 816013739 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Optimist International

    EIN 816014005 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Optimist International

    EIN 833642425 · Headquarters: BILLINGS, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Optimist International

    EIN 900300562 · Headquarters: Roundup, MT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  40. Orchards of Montana

    EIN 932582697 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Order of Eastern Star of Montana

    EIN 237009191 · Headquarters: Laurel, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Order of Eastern Star of Montana

    EIN 237186905 · Headquarters: Deer Lodge, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Order of Eastern Star of Montana

    EIN 237258395 · Headquarters: Grass Range, MT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  44. Order of Eastern Star of Montana

    EIN 237352957 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Order of Eastern Star of Montana

    EIN 237367054 · Headquarters: Laurel, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Order of Eastern Star of Montana

    EIN 810131171 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Order of Eastern Star of Montana

    EIN 810146460 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  48. Order of Eastern Star of Montana

    EIN 810178963 · Headquarters: Butte, MT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  49. Order of Eastern Star of Montana

    EIN 810178977 · Headquarters: Laurel, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Order of Eastern Star of Montana

    EIN 810179000 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Order of Eastern Star of Montana

    EIN 810179016 · Headquarters: Great Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Order of Eastern Star of Montana

    EIN 810179021 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Order of Eastern Star of Montana

    EIN 810222886 · Headquarters: Bozeman, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Order of Eastern Star of Montana

    EIN 816012416 · Headquarters: Kalispell, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Order of Eastern Star of Montana

    EIN 816035094 · Headquarters: Havre, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  56. Order of Eastern Star of Montana

    EIN 816035283 · Headquarters: Hinsdale, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. Order of Eastern Star of Montana

    EIN 816035286 · Headquarters: Hobson, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  58. Order of Eastern Star of Montana

    EIN 816035287 · Headquarters: Conrad, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Order of Eastern Star of Montana

    EIN 816035288 · Headquarters: Superior, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Order of Eastern Star of Montana

    EIN 816035303 · Headquarters: Worden, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Order of Eastern Star of Montana

    EIN 816035314 · Headquarters: Hot Springs, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Order of Eastern Star of Montana

    EIN 816035318 · Headquarters: Drummond, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Order of Eastern Star of Montana

    EIN 816035321 · Headquarters: Polson, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Order of Eastern Star of Montana

    EIN 816035324 · Headquarters: Manhattan, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Order of Eastern Star of Montana

    EIN 816035326 · Headquarters: Whitefish, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Order of Eastern Star of Montana

    EIN 816035327 · Headquarters: Fort Benton, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Order of Eastern Star of Montana

    EIN 816035328 · Headquarters: Bridger, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Order of Eastern Star of Montana

    EIN 816035332 · Headquarters: Malta, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Order of Eastern Star of Montana

    EIN 816035334 · Headquarters: Hamilton, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Order of Eastern Star of Montana

    EIN 816035335 · Headquarters: Forsyth, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Order of Eastern Star of Montana

    EIN 816035338 · Headquarters: Chinook, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Order of Eastern Star of Montana

    EIN 816035342 · Headquarters: Victor, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Order of Eastern Star of Montana

    EIN 816035344 · Headquarters: Dillon, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Order of Eastern Star of Montana

    EIN 816035345 · Headquarters: White Sulphur Springs, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Order of Eastern Star of Montana

    EIN 816035349 · Headquarters: Townsend, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Order of Eastern Star of Montana

    EIN 816035380 · Headquarters: Hardin, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Order of Eastern Star of Montana

    EIN 816035434 · Headquarters: Anaconda, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Order of Runeberg 105 Butte

    EIN 810389174 · Headquarters: BUTTE, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Order of the Eastern Star of Montana

    EIN 816035308 · Headquarters: Billings, MT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Order of the Eastern Star-grand Chapter

    EIN 810178970 · Headquarters: LAUREL, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Organization Buenos Vecinos

    EIN 853478722 · Headquarters: Columbia Falls, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Otter Creek Volunteer Fire Department

    EIN 331068263 · Headquarters: Geyser, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Our Lady of the Rockies Inc

    EIN 810400250 · Headquarters: BUTTE, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Outdoor Adventures Unlimited

    EIN 364638846 · Headquarters: HELENA, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Outdoor Heritage Coalition

    EIN 832265572 · Headquarters: GILDFORD, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Outlook County Sewer Water District

    EIN 810421083 · Headquarters: OUTLOOK, MT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. Overflow Church

    EIN 364906675 · Headquarters: Helena, MT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  88. Overland Recreation Association Inc

    EIN 810364759 · Headquarters: BIG TIMBER, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Owl Research Institute Inc

    EIN 810453479 · Headquarters: CHARLO, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Paradise Cemetery Association

    EIN 800134280 · Headquarters: Paradise, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Paradise Found Subdivision Water Users and Homeowners Association

    EIN 832902389 · Headquarters: Pray, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Paradise Valley Hunting Lodge

    EIN 816014377 · Headquarters: Butte, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Parent Booster USA Inc

    EIN 920816808 · Headquarters: Missoula, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Parent Booster USA Inc

    EIN 920872194 · Headquarters: Lockwood, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Parents Families and Friends of Lesbians and Gays

    EIN 263090002 · Headquarters: Corvallis, MT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  96. Parents of Class of 2014

    EIN 464616998 · Headquarters: Havre, MT, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  97. Parents of the Class of 2010

    EIN 271893005 · Headquarters: Havre, MT, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  98. Parents of the Class of 2012

    EIN 453580188 · Headquarters: Havre, MT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  99. Paris Reidhead Bible Teaching Ministries Inc

    EIN 541383012 · Headquarters: BILLINGS, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Park City Ambulance Service

    EIN 810385544 · Headquarters: PARK CITY, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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