Nonprofits in Boulder, Colorado

Nonprofits in Boulder, Colorado. Browse 1,829 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. 082 Boulder Flycasters Chapter of Trout Unlimited

    EIN 237188821 · Headquarters: BOULDER, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. 1000 Friends of Colorado Inc

    EIN 841294134 · Headquarters: Boulder, CO, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  3. 1000 Gretas Foundation

    EIN 852597264 · Headquarters: Boulder, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. 1111 College Inc

    EIN 270192105 · Headquarters: BOULDER, CO, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  5. 350 Colorado

    EIN 463355370 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. 350 Colorado Action

    EIN 822466390 · Headquarters: Boulder, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. 3L Foundation

    EIN 271943050 · Headquarters: Boulder, CO, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. 3Rd Law Dance/Theater

    EIN 841572264 · Headquarters: Boulder, CO, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. 4-H Clubs & Affiliated 4-H Organizations

    EIN 260100631 · Headquarters: Boulder, CO, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  10. 4-H Clubs & Affiliated 4-H Organizations

    EIN 841312098 · Headquarters: Boulder, CO, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  11. 4222 Humanity Through Baseball Foundation Inc

    EIN 900544837 · Headquarters: BOULDER, CO, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. 500 Women Scientists

    EIN 821435767 · Headquarters: BOULDER, CO, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. 5280 Explorers

    EIN 463293140 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. 5430 Kids Tennis Foundation

    EIN 271058430 · Headquarters: Boulder, CO, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  15. 6658 Gunpark Drive Condominium Ass

    EIN 861058643 · Headquarters: Boulder, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. 84000

    EIN 454302237 · Headquarters: BOULDER, CO, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. A Buck a Month Club

    EIN 814390652 · Headquarters: Boulder, CO, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  18. A Lo Cubano Boulder Fest

    EIN 394269388 · Headquarters: Boulder, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Aatseel of the Us Inc

    EIN 046130037 · Headquarters: BOULDER, CO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Aaup Cu Chapter

    EIN 743185158 · Headquarters: Boulder, CO, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  21. Abiding Heart Education

    EIN 871446524 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Above the Seas Llc

    EIN 460869113 · Headquarters: Boulder, CO, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Access Fund Land Foundation

    EIN 330505050 · Headquarters: Boulder, CO, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  24. Access Opportunity

    EIN 465399558 · Headquarters: BOULDER, CO, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Acorn Nonprofit Capacity Building

    EIN 333014646 · Headquarters: Boulder, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Acoustic Emission Working Group

    EIN 841043976 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Action Committee for Eldorado

    EIN 841205166 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Actor Voice

    EIN 922867536 · Headquarters: Boulder, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Acupuncture Innovation

    EIN 814993914 · Headquarters: Boulder, CO, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Addictive Bahavior Counseling Ministries International Inc

    EIN 300361895 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Admiral Arleigh Burke Chapter of the Retired Officers Association

    EIN 840804817 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Adoption Roots

    EIN 822067117 · Headquarters: Boulder, CO, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Adventures in Preservation

    EIN 841608047 · Headquarters: Boulder, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Advocates for Healthy Communities Inc

    EIN 453802508 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Aedra

    EIN 821035576 · Headquarters: Boulder, CO, US · Mental Health & Crisis Intervention · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  36. Aerospace Legacy Engineering & Technology Recovery Organization

    EIN 262749784 · Headquarters: BOULDER, CO, US · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Affordable Housing Alliance Inc

    EIN 841183439 · Headquarters: Boulder, CO, US · Housing & Shelter · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  38. Afghans4tomorrow Inc

    EIN 454488166 · Headquarters: BOULDER, CO, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Afp Consortium

    EIN 261767844 · Headquarters: Boulder, CO, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. African Conservation Centre Us

    EIN 463104438 · Headquarters: BOULDER, CO, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. Afrotc Cadet Association

    EIN 742068304 · Headquarters: Boulder, CO, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  42. Agile-international

    EIN 455437313 · Headquarters: BOULDER, CO, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Aging Services Foundation of Boulder County

    EIN 841518506 · Headquarters: BOULDER, CO, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. AHIMSA Dba Calming Kids

    EIN 510425033 · Headquarters: Boulder, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Aigyptos Institute C/o Epacria Capital Partners Llc

    EIN 934401429 · Headquarters: BOULDER, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Aim Training Inc

    EIN 202760891 · Headquarters: Boulder, CO, US · Crime & Legal Related · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  47. Airlink Amateur Radio Group

    EIN 814312371 · Headquarters: Boulder, CO, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Al-shaahed-the Witness

    EIN 263902276 · Headquarters: BOULDER, CO, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Alan Lasater Outreach Foundation

    EIN 474083243 · Headquarters: BOULDER, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  50. Alandi Ashram Alandi Ayurveda Clinic

    EIN 841426892 · Headquarters: Boulder, CO, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Alex Maldonado Scholarship Fund

    EIN 274006129 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Alexia Parks 10Traits Leadership Institute

    EIN 841173215 · Headquarters: Boulder, CO, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Algeria Forum Inc

    EIN 202807104 · Headquarters: Boulder, CO, US · International, Foreign Affairs & National Security · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  54. All About the Kids Inc

    EIN 814693214 · Headquarters: BOULDER, CO, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  55. All Roads

    EIN 841041149 · Headquarters: Boulder, CO, US · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. All Together Now International

    EIN 841418750 · Headquarters: BOULDER, CO, USA · International, Foreign Affairs & National Security · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  57. Allergy Kids Foundation Inc

    EIN 743185883 · Headquarters: BOULDER, CO, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  58. Aloran Foundation

    EIN 261167243 · Headquarters: BOULDER, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  59. Alpha Delta Phi Colorado Chapter

    EIN 811269587 · Headquarters: Boulder, CO, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  60. Alpha Epsilon Delta

    EIN 846038435 · Headquarters: Boulder, CO, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  61. Alpha Epsilon Pi Fraternity

    EIN 840716532 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  62. Alpha Omicron Chapter of Delta Kappa Epsilon Fraternity

    EIN 932830954 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Alpha Psi Delta Corporation of Chi Psi

    EIN 846034808 · Headquarters: BOULDER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Alpha Psi Delta Educational Foundation Inc

    EIN 237120543 · Headquarters: BOULDER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. Alpha Rho Chapter of Delta Sigma Phi

    EIN 921862743 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Alpha Sigma Phi Fraternity Inc

    EIN 474085326 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Alt-x Digital Arts Foundation

    EIN 841503929 · Headquarters: Boulder, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Altai Institute for Research and Conservation Inc

    EIN 824253427 · Headquarters: Boulder, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Alumnae Association of Mount Holyoke College Inc

    EIN 232240840 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  70. American Association of Family and Consumer Sciences

    EIN 846044831 · Headquarters: Boulder, CO, US · Social Science · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  71. American Association of Nuclear Cardiology

    EIN 841225255 · Headquarters: BOULDER, CO, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  72. American Association of Teachers of Japanese Inc

    EIN 391481425 · Headquarters: BOULDER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. American Association of University Women

    EIN 846036501 · Headquarters: Boulder, CO, US · Community Improvement & Capacity Building · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  74. American Federation of Government Employees

    EIN 846035964 · Headquarters: Boulder, CO, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. American Federation of Teachers

    EIN 237242954 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  76. American Friends of the Belgrade Philharmonic Orchestra Inc

    EIN 454796820 · Headquarters: BOULDER, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. American Friends of Zichron Avos a Nj Non Profit Corporation

    EIN 991963836 · Headquarters: BOULDER, CO, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. American Group Psychotherapy Association Inc

    EIN 821619468 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  79. American Harp Society

    EIN 272404174 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. American Institute of Aeronautics and Astronautics Inc

    EIN 846048994 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. American Jump Rope Federation

    EIN 813803710 · Headquarters: BOULDER, CO, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. American Legion Auxiliary

    EIN 841007533 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. American Legion Post 10 Boulder

    EIN 840373566 · Headquarters: Boulder, CO, USA · Public & Societal Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990

  84. American Mountain Guides Association Inc

    EIN 841213723 · Headquarters: BOULDER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. American Natural Foods Inc

    EIN 650485701 · Headquarters: BOULDER, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. American Production and Inventory Control Society

    EIN 742141058 · Headquarters: BOULDER, CO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  87. American Safe Climbing Association

    EIN 680419449 · Headquarters: Boulder, CO, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. American Servicemembers Amateur Sports Inc US Military Endurance Sports

    EIN 273211191 · Headquarters: Boulder, CO, USA · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990

  89. American Solar Energy Society Inc

    EIN 591768923 · Headquarters: BOULDER, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. American Volkssport Association Inc

    EIN 841143440 · Headquarters: BOULDER, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Americans in Alliance

    EIN 742245535 · Headquarters: Boulder, CO, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Americas Association for the Care of Children

    EIN 421742702 · Headquarters: BOULDER, CO, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Ames Ink Inc

    EIN 261232583 · Headquarters: Boulder, CO, US · Arts, Culture & Humanities · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  94. Anam Chara

    EIN 841203352 · Headquarters: Boulder, CO, US · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  95. Ancestral Maguey Organization

    EIN 824693411 · Headquarters: Boulder, CO, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Ancient Free & Accepted Masons of Colorado

    EIN 237145545 · Headquarters: Boulder, CO, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  97. Ancient Free & Accepted Masons of Colorado

    EIN 840005918 · Headquarters: Boulder, CO, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  98. Ancient Free & Accepted Masons of Colorado

    EIN 840005919 · Headquarters: Boulder, CO, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  99. Ancient Future Medicine

    EIN 863001466 · Headquarters: Boulder, CO, US · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Ancient Mystical Order of Rosae Crucis

    EIN 840833291 · Headquarters: Boulder, CO, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

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