Nonprofits in Colorado

Nonprofits in Colorado. Browse 43,681 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. Sigma Alpha Epsilon Pi

    EIN 813943987 · Headquarters: Fort Collins, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  2. Sigma Alpha Epsilon Pi

    EIN 814294640 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. Sigma Alpha Sorority

    EIN 263842915 · Headquarters: Fort Collins, CO, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  4. Sigma Chapter of Alpha Phi Holding

    EIN 916072382 · Headquarters: DENVER, CO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Sigma Chi Fraternity

    EIN 840418572 · Headquarters: Colorado Springs, CO, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  6. Sigma Chi Fraternity

    EIN 840698728 · Headquarters: Fort Collins, CO, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  7. Sigma Chi Fraternity Delta Iota

    EIN 840407148 · Headquarters: DENVER, CO, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Sigma Delta Espilon Graduate Womens Scientific Frat

    EIN 472136805 · Headquarters: Fort Collins, CO, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  9. Sigma Gamma Rho Sorority Inc

    EIN 363153324 · Headquarters: AURORA, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Sigma Gamma Rho Sorority Inc

    EIN 364093451 · Headquarters: Aurora, CO, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  11. Sigma Gamma Rho Sorority Inc

    EIN 840957607 · Headquarters: AURORA, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Sigma Gamma Tau National Honor Society in Aerospace Engineering

    EIN 841353696 · Headquarters: USAF Academy, CO, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  13. Sigma Gamma Tau National Honor Society in Aerospace Engineering

    EIN 841392283 · Headquarters: Boulder, CO, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  14. Sigma Hope Foundation Of Colorado Springs

    EIN 874722162 · Headquarters: COLORADO SPRINGS, CO, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Sigma Kappa Sorority

    EIN 263535698 · Headquarters: Littleton, CO, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  16. Sigma Lambda Gamma Education Foundation Inc

    EIN 421510097 · Headquarters: Monument, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Sigma Nu Fraternity

    EIN 320337313 · Headquarters: GOLDEN, CO, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Sigma Nu Fraternity Gamma Kappa

    EIN 840404406 · Headquarters: LONGMONT, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 841122995 · Headquarters: Aurora, CO, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  20. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 841165327 · Headquarters: Colorado Springs, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 841482420 · Headquarters: Denver, CO, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  22. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 846048395 · Headquarters: Rangley, CO, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  23. Sigma Phi Epsilon Fraternity Colorado Gamma Chapter

    EIN 920264266 · Headquarters: FORT COLLINS, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Sigma Phi Epsilon Fraternity Inc

    EIN 840406772 · Headquarters: Fort Collins, CO, USA · Education · Latest available filing year: 2012 · Primary form: IRS Form 990

  25. Sigma Phi Epsilon Fraternity Inc - CO Delta Chapter

    EIN 521316662 · Headquarters: Golden, CO, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Sigma Phi Gamma International Sorority Inc

    EIN 840932874 · Headquarters: Greeley, CO, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  27. Sigma Phi Gamma International Sorority Inc

    EIN 841109880 · Headquarters: Colorado Springs, CO, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  28. Sigma Phi Gamma International Sorority Inc

    EIN 846037802 · Headquarters: Lakewood, CO, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  29. Sigma Phi Gamma International Sorority Inc

    EIN 846037803 · Headquarters: DENVER, CO, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  30. Sigma Pi Fraternity Eta Sigma Chapter

    EIN 472206412 · Headquarters: Fort Collins, CO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  31. Sigma Shares

    EIN 205403738 · Headquarters: Centennial, CO, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Sigma Sigma Phi

    EIN 453088092 · Headquarters: Englewood, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Sigma Sigma Sigma Inc

    EIN 273791581 · Headquarters: Golden, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. Sigma Sigma Sigma Inc

    EIN 921488707 · Headquarters: Colorado Springs, CO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  35. Sigma Theta Tau Inc

    EIN 311042714 · Headquarters: Greeley, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Sigma Theta Tau Inc

    EIN 311242910 · Headquarters: Pueblo, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Sigma Theta Tau Inc

    EIN 311361614 · Headquarters: Grand Junction, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Sigma Theta Tau Inc

    EIN 846050505 · Headquarters: Centennial, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Sigma Theta Tau International Inc

    EIN 351988135 · Headquarters: Colorado Springs, CO, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  40. Signal Behavioral Health Network

    EIN 841362495 · Headquarters: GREENWOOD VILLAGE, CO, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Significant Man Ministries

    EIN 844586529 · Headquarters: Colorado Springs, CO, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Signpost Inn

    EIN 853666447 · Headquarters: CANON CITY, CO, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Signs of Hope

    EIN 453662547 · Headquarters: ARVADA, CO, USA · Religion Related · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  44. Sika Development Fund

    EIN 472122176 · Headquarters: Aurora, CO, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Silence47org

    EIN 394657635 · Headquarters: aspen, CO, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Silent Foundation

    EIN 851127380 · Headquarters: BOULDER, CO, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Silent J Ranch

    EIN 474385983 · Headquarters: Fountain, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Silent Voices Foundation

    EIN 455502527 · Headquarters: Denver, CO, US · Mental Health & Crisis Intervention · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  49. Silicon Ally

    EIN 872367335 · Headquarters: Boulder, CO, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Silicon Mountain Macintosh User Group Inc

    EIN 841328655 · Headquarters: Colorado Springs, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Siloam

    EIN 205588217 · Headquarters: Telluride, CO, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  52. Sils Affordable Vet Care C/o Pamela Steiner

    EIN 454631209 · Headquarters: FORT MORGAN, CO, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  53. Silt Farmers Market

    EIN 814829830 · Headquarters: Silt, CO, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  54. Silt Historical Society Inc

    EIN 840920407 · Headquarters: Silt, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Silva Family Foundation

    EIN 824959490 · Headquarters: Denver, CO, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  56. Silver City Gymnastics Club

    EIN 841265485 · Headquarters: Aspen, CO, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Silver Creek Organization for Performing Arts

    EIN 010814316 · Headquarters: LONGMONT, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Silver Dollar Foundation

    EIN 205041272 · Headquarters: Basalt, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  59. Silver Key Senior Services Foundation

    EIN 841401179 · Headquarters: COLORADO SPRINGS, CO, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990

  60. Silver Key Senior Services Inc

    EIN 237109922 · Headquarters: COLORADO SPRINGS, CO, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990

  61. Silver Lake Ditch and Reservoir Co

    EIN 840421270 · Headquarters: Boulder, CO, US · Food, Agriculture & Nutrition · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  62. Silver Lakes Trout Club

    EIN 840319875 · Headquarters: Littleton, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Silver Mountain Limited

    EIN 332321830 · Headquarters: DENVER, CO, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Silver Plume Preservation Inc

    EIN 320364737 · Headquarters: Georgetown, CO, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  65. Silver Saddle Riders Club Inc

    EIN 814437116 · Headquarters: Parker, CO, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  66. Silver Spruce Academy Inc

    EIN 463555425 · Headquarters: BAYFIELD, CO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Silver Spur Stables

    EIN 933630354 · Headquarters: Florissant, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. Silver State Christmas & Charity Fund Inc

    EIN 846039401 · Headquarters: Pueblo, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Silver State Lodge No 95 Af and Am Temple Association

    EIN 742516199 · Headquarters: Pueblo, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Silver Thread Colorado Scenic & Historic Byway

    EIN 843925721 · Headquarters: Creede, CO, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Silver Threads Quilt Guild

    EIN 841586260 · Headquarters: SOUTH FORK, CO, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Silver Town Care Center Inc

    EIN 841563878 · Headquarters: Aurora, CO, US · Mental Health & Crisis Intervention · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  73. Silver Trout Foundation

    EIN 841193067 · Headquarters: Basalt, CO, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  74. Silver-west Homeowners Association

    EIN 262220664 · Headquarters: Elizabeth, CO, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Silverback Volleyball Club

    EIN 834429526 · Headquarters: Lafayette, CO, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Silverset Inc

    EIN 742238044 · Headquarters: BAILEY, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Silverstar Foundation

    EIN 841270807 · Headquarters: Colorado Springs, CO, US · Human Services · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  78. Silverthorne Arts Initiative

    EIN 814396265 · Headquarters: SILVERTHORNE, CO, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  79. Silverthreas Outdoor Recreation Club of the San Luis Valley

    EIN 841558806 · Headquarters: South Fork, CO, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Silverton 4Th of July Association

    EIN 814201681 · Headquarters: Silverton, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  81. Silverton and San Juan Co Clinic

    EIN 811048616 · Headquarters: Silverton, CO, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Silverton Area Chamber of Commerce

    EIN 840884323 · Headquarters: Silverton, CO, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  83. Silverton Avalanche School

    EIN 841610353 · Headquarters: Silverton, CO, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. Silverton Community Radio

    EIN 830374409 · Headquarters: Silverton, CO, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  85. Silverton Creative District

    EIN 843229930 · Headquarters: Silverton, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Silverton Family Learning Center Inc

    EIN 200233428 · Headquarters: Silverton, CO, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Silverton Farmers Market

    EIN 830769572 · Headquarters: Silverton, CO, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Silverton Gunfighters Association

    EIN 841192336 · Headquarters: Silverton, CO, US · Youth Development · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  89. Silverton Mountain School

    EIN 270013392 · Headquarters: Silverton, CO, US · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  90. Silverton Powerhouse Collective

    EIN 333025266 · Headquarters: Silverton, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Silverton San Juan County

    EIN 841029490 · Headquarters: Silverton, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Silverton Skijoring

    EIN 843140682 · Headquarters: Silverton, CO, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  93. Silverton Threads

    EIN 273629076 · Headquarters: Silverton, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  94. Silverton Youth Center

    EIN 271858071 · Headquarters: Silverton, CO, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Simba Fund

    EIN 208388814 · Headquarters: CARBONDALE, CO, US · Animal Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  96. Simbas Pride

    EIN 854364482 · Headquarters: Morrison, CO, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Simchat HaMashiach Messianic Synagogue

    EIN 455607769 · Headquarters: Bayfield, CO, USA · Religion Related · Latest available filing year: 2022 · Primary form: IRS Form 990-T

  98. Simchat Torah Beit Midrash

    EIN 841358029 · Headquarters: Parker, CO, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Simla Community Action Committee

    EIN 273446738 · Headquarters: Simla, CO, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Simmons & Associates Educational Fd Inc

    EIN 030490907 · Headquarters: Colorado Springs, CO, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

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