Unknown & Unclassified nonprofits in Colorado

Unknown & Unclassified nonprofits in Colorado. Browse 9,996 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. National Business Travel Association

    EIN 841020410 · Headquarters: Denver, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. National Cattlemen's Foundation Inc

    EIN 237259504 · Headquarters: CENTENNIAL, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. National Cattlemens Building Corp

    EIN 742200677 · Headquarters: Centennial, CO, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. National Christmas Tree Association

    EIN 391353307 · Headquarters: LITTLETON, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  5. National Coalition for Responsible Cannabinoid

    EIN 412648159 · Headquarters: Castle Rock, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. National Council of Investigation and Security Services Inc

    EIN 521044213 · Headquarters: EVANS, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. National Council of Negro Women Inc

    EIN 841467505 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. National Council of Teachers of English

    EIN 840702342 · Headquarters: INDIAN HILLS, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  9. National Council of Teachers of English

    EIN 911912196 · Headquarters: Longmont, CO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  10. National Council on Family Relations

    EIN 301104346 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. National Day of Prayer Task Force

    EIN 751914068 · Headquarters: COLORADO SPRINGS, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. National Electrical Contractors Ass Southern Colorado Chapter

    EIN 840434867 · Headquarters: COLORADO SPRINGS, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. National Electrical Contractors Association Rocky Mountain Chapter

    EIN 840367578 · Headquarters: DENVER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. National Eligibility Workers Association

    EIN 550592520 · Headquarters: Loveland, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. National Emergency Response Team Inc

    EIN 841592309 · Headquarters: JAMESTOWN, CO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  16. National English Springer Spaniel Field Trial Association

    EIN 260466766 · Headquarters: Longmont, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  17. National Environmental Balancing Inc

    EIN 237333051 · Headquarters: Aurora, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. National Environmental Health Association

    EIN 840469910 · Headquarters: DENVER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. National Exchange Club

    EIN 453763560 · Headquarters: Greeley, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. National Exchange Club

    EIN 840816328 · Headquarters: Greeley, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. National Federation of Music Clubs

    EIN 364772151 · Headquarters: Littleton, CO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  22. National Federation of Music Clubs

    EIN 842361128 · Headquarters: MONUMENT, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. National Federation of Music Clubs

    EIN 844611957 · Headquarters: Loveland, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. National Federation of Music Clubs

    EIN 900047385 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. National Federation of the Blind of Denver

    EIN 840531858 · Headquarters: Littleton, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. National Financial Planning Support Center

    EIN 742341001 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. National Football Foundation and College Hall of Fame Inc

    EIN 841217635 · Headquarters: Highlands Ranch, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. National Foundation for Prevention of Chemical Dependency Disease

    EIN 470662117 · Headquarters: EVERGREEN, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. National Foundation of Dentistry for the Handicapped - Group

    EIN 841043478 · Headquarters: DENVER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. National Guard Association of Co

    EIN 840629532 · Headquarters: ENGLEWOOD, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. National Gymnastics Judges Association Inc

    EIN 581444723 · Headquarters: Fort Collins, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. National Hearing Conservation Association Inc

    EIN 591690247 · Headquarters: CENTENNIAL, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. National High School Rodeo Assoc

    EIN 466015501 · Headquarters: DENVER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. National Institute for Truth and Freedom

    EIN 201222124 · Headquarters: Lone Tree, CO, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  35. National Intercollegiate Soccer Officials Association Incorporated

    EIN 841033530 · Headquarters: LONGMONT, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. National Jewish Health

    EIN 136029909 · Headquarters: Denver, Colorado, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  37. National Kitchen 7 Bath Assoc Rocky Mtn Chapter

    EIN 841123284 · Headquarters: Lakewood, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. National Livestock Producers Association

    EIN 362195359 · Headquarters: COLORADO SPRINGS, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. National Onion Association

    EIN 381435833 · Headquarters: Eaton, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. National Org of Alpha Sigma Kappa Women in Technical Studies

    EIN 844008466 · Headquarters: Fort Collins, CO, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  41. National Organization for Men Against Sexism

    EIN 363512433 · Headquarters: DENVER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. National Organization for Women Inc

    EIN 815193254 · Headquarters: Fort Collins, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. National Organization of Alpha Sigma Kappa Women in Technical Stu

    EIN 464495562 · Headquarters: Fort Collins, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. National Organization of Mothers of Twins Clubs Inc

    EIN 742714685 · Headquarters: LAFAYETTE, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. National Organization of Mothers of Twins Clubs Inc

    EIN 841176192 · Headquarters: Broomfield, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Organization of Mothers of Twins Clubs Inc

    EIN 841326456 · Headquarters: COLORADO SPRINGS, CO, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  47. National Organization of Mothers of Twins Clubs Inc

    EIN 841512996 · Headquarters: LOVELAND, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. National Radio Club Inc

    EIN 310938632 · Headquarters: Aurora, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. National Repertory Orchestra Inc

    EIN 840566793 · Headquarters: BRECKENRIDGE, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. National Rural Letter Carriers Association

    EIN 237235418 · Headquarters: Wray, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. National Rural Letter Carriers Association

    EIN 237235422 · Headquarters: Watkins, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. National Rural Letter Carriers Association

    EIN 237235426 · Headquarters: Grand Junction, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. National Rural Letter Carriers Association

    EIN 510247385 · Headquarters: SANFORD, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. National School Public Relations Association

    EIN 541794518 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  55. National Sheep Improvement Program

    EIN 742477116 · Headquarters: ENGLEWOOD, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. National Ski Areas Association

    EIN 131973926 · Headquarters: LAKEWOOD, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. National Ski Patrol System Inc

    EIN 840398775 · Headquarters: LAKEWOOD, CO, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  58. National Slovak Society of the USA

    EIN 237501020 · Headquarters: Colorado Springs, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. National Society Colonial Dames Xvii Century

    EIN 237216852 · Headquarters: Parker, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. National Society Colonial Dames Xvii Century

    EIN 510213298 · Headquarters: Centennial, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. National Society Colonial Dames Xvii Century

    EIN 841074682 · Headquarters: Parker, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. National Society Colonial Dames Xvii Century

    EIN 841380320 · Headquarters: Parker, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. National Society Colonial Dames Xvii Century

    EIN 846060052 · Headquarters: Lakewood, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. National Society Colonial Daughters of the 17Th Century Inc

    EIN 821295486 · Headquarters: Castle Pines, CO, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  65. National Society Dames of the Court of Honor

    EIN 521277008 · Headquarters: Lakewood, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. National Society Daughters of Founders & Patriots of America

    EIN 237584648 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. National Society Daughters of the American Colonists

    EIN 846036152 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. National Society Daughters of the American Colonists

    EIN 846036227 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. National Society Daughters of the American Revolution

    EIN 273675878 · Headquarters: Highlands Ranch, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. National Society Daughters of the British Empire in the United State

    EIN 841013535 · Headquarters: DENVER, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. National Society Daughters of the Union 1861-1865

    EIN 465312958 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. National Society Daughters of the Union 1861-1865

    EIN 810793438 · Headquarters: Loveland, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. National Society for Perform Front Range Chapter

    EIN 841151129 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  74. National Society of New England Women

    EIN 841115752 · Headquarters: Parker, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. National Society of Professional Engineers Colorado Education Fdn

    EIN 841162742 · Headquarters: Colorado Springs, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. National Society of the Children of the American Revolution

    EIN 237248839 · Headquarters: Littleton, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. National Society of the Children of the American Revolution

    EIN 270111276 · Headquarters: Arvada, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. National Society of the Children of the American Revolution

    EIN 392065427 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. National Society of the Children of the American Revolution

    EIN 471485146 · Headquarters: Pueblo, CO, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  80. National Society of the Children of the American Revolution

    EIN 753259141 · Headquarters: Hugo, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. National Society of the Children of the American Revolution

    EIN 811488200 · Headquarters: Larkspur, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. National Society of the Children of the American Revolution

    EIN 830502051 · Headquarters: Loveland, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. National Society of the Children of the American Revolution

    EIN 832391936 · Headquarters: Littleton, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. National Society of the Daughters of the American Revolution

    EIN 237303034 · Headquarters: Thornton, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. National Society of the Daughters of the American Revolution

    EIN 237432687 · Headquarters: Littleton, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. National Society of the Daughters of the American Revolution

    EIN 261970653 · Headquarters: Westminster, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. National Society of the Daughters of the American Revolution

    EIN 270751885 · Headquarters: Craig, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. National Society of the Daughters of the American Revolution

    EIN 412160355 · Headquarters: Parker, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. National Society of the Daughters of the American Revolution

    EIN 453604986 · Headquarters: COLORADO SPGS, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. National Society of the Daughters of the American Revolution

    EIN 474400028 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. National Society of the Daughters of the American Revolution

    EIN 474487292 · Headquarters: Mead, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. National Society of the Daughters of the American Revolution

    EIN 510249942 · Headquarters: Parker, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. National Society of the Daughters of the American Revolution

    EIN 800860514 · Headquarters: Laporte, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. National Society of the Daughters of the American Revolution

    EIN 821177306 · Headquarters: Mead, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. National Society of the Daughters of the American Revolution

    EIN 823688177 · Headquarters: Edwards, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. National Society of the Daughters of the American Revolution

    EIN 830489240 · Headquarters: Trinidad, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. National Society of the Daughters of the American Revolution

    EIN 833875361 · Headquarters: Littleton, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. National Society of the Daughters of the American Revolution

    EIN 840751257 · Headquarters: Salida, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. National Society of the Daughters of the American Revolution

    EIN 840855141 · Headquarters: KITTREDGE, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. National Society of the Daughters of the American Revolution

    EIN 840997238 · Headquarters: Mancos, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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