Nonprofits in Castle Rock, Colorado

Nonprofits in Castle Rock, Colorado. Browse 553 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. 16 15 the Gc Media Project

    EIN 383746275 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. 18 Principles Inc

    EIN 262686998 · Headquarters: Castle Rock, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. 1Twenty7 Project Inc

    EIN 831164733 · Headquarters: Castle Rock, CO, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. 28Th Field Artillery Regiment Association

    EIN 833240966 · Headquarters: Castle Rock, CO, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. 39N Homebrewers

    EIN 825230438 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. 4-H Clubs & Affiliated 4 H Organizations

    EIN 841273065 · Headquarters: Castle Rock, CO, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  7. 4-H Clubs & Affiliated 4-H Organizations

    EIN 262283711 · Headquarters: Castle Rock, CO, US · Youth Development · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  8. 4-H Clubs & Affiliated 4-H Organizations

    EIN 841251174 · Headquarters: Castle Rock, CO, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  9. 5280 Encore Chorale

    EIN 472632950 · Headquarters: CASTLE ROCK, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  10. 5280 Plus Senior Chorales

    EIN 872734025 · Headquarters: CASTLE ROCK, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. 6202 Cycling

    EIN 204283052 · Headquarters: Castle Rock, CO, US · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  12. 8Th Mountain Ranch

    EIN 472779337 · Headquarters: Castle Rock, CO, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. A Life Well Fed

    EIN 934538111 · Headquarters: Castle Rock, CO, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. A Touch of Christ Inc

    EIN 472610731 · Headquarters: CASTLE ROCK, CO, USA · Religion Related · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  15. Able Nation Inc

    EIN 830851204 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Academy Charter School

    EIN 841456891 · Headquarters: CASTLE ROCK, CO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Academy Charter School - Pto

    EIN 841265867 · Headquarters: CASTLE ROCK, CO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  18. Adhd Connection of Colorado Inc

    EIN 841603874 · Headquarters: Castle Rock, CO, US · Mental Health & Crisis Intervention · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  19. Adsit Strong Inc

    EIN 812849548 · Headquarters: castle rock, CO, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. Aftermath Foundation

    EIN 823888709 · Headquarters: CASTLE ROCK, CO, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. Aging Resources of Douglas County

    EIN 825166064 · Headquarters: CASTLE ROCK, CO, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Aliyah Inspired Moments Aim 2 Cure Inc

    EIN 452584069 · Headquarters: Castle Rock, CO, US · Medical Research · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. All Valley Boxing

    EIN 844405464 · Headquarters: Castle Rock, CO, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Alpha Gamma Delta Fraternity

    EIN 846036127 · Headquarters: Castle Rock, CO, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  25. Alpine Research Institute

    EIN 841184404 · Headquarters: Castle Rock, CO, US · Medical Research · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  26. Altitude Multisport Club

    EIN 464479358 · Headquarters: Castle Rock, CO, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Always Faithful Bibles Inc

    EIN 455232935 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Amateur Athletic Union of the United States Inc

    EIN 822713203 · Headquarters: Castle Rock, CO, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  29. American Association of University Women

    EIN 840768078 · Headquarters: Castle Rock, CO, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. American Christian Fiction Writers Inc

    EIN 800545717 · Headquarters: CASTLE ROCK, CO, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  31. American Coach Association

    EIN 810671711 · Headquarters: Castle Rock, CO, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  32. American Legion

    EIN 562418601 · Headquarters: CASTLE ROCK, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Legion Auxiliary

    EIN 742685943 · Headquarters: Castle Rock, CO, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  34. American Legion Colorado District 6

    EIN 933136231 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. American Vaulting Association

    EIN 371846473 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  36. Amy Elaine Ministries Inc

    EIN 825520452 · Headquarters: CASTLE ROCK, CO, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Anchor of Love

    EIN 861323759 · Headquarters: Castle Rock, CO, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. Ancient Free & Accepted Masons of Colorado

    EIN 237109707 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Anthem Ministries Inc

    EIN 883223400 · Headquarters: CASTLE ROCK, CO, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. Art Fowler Ministries

    EIN 841146949 · Headquarters: Castle Rock, CO, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Artesano Colorado Incorporated

    EIN 753140402 · Headquarters: Castle Rock, CO, US · Religion Related · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  42. Asociacion Centroamericana Unida

    EIN 263180729 · Headquarters: CASTLE ROCK, CO, USA · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  43. Aspen View Academy

    EIN 453169981 · Headquarters: CASTLE ROCK, CO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Aspenosium

    EIN 811793031 · Headquarters: Castle Rock, CO, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Aspire Hope for Kids

    EIN 922124917 · Headquarters: CASTLE ROCK, CO, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Association of Image Consultants International USA Chapter

    EIN 393052604 · Headquarters: CASTLE ROCK, CO, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  47. At the Table Colorado

    EIN 833576874 · Headquarters: Castle Rock, CO, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Aurora Horsemen Foundation

    EIN 880543681 · Headquarters: Castle Rock, CO, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Avon Arts Council Inc

    EIN 742685728 · Headquarters: CASTLE ROCK, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  50. Barn Church

    EIN 994649958 · Headquarters: Castle Rock, CO, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Basic Reads

    EIN 260643520 · Headquarters: CASTLE ROCK, CO, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  52. Be About Bliss

    EIN 474380232 · Headquarters: Castle Rock, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  53. Beacon Bash Inc

    EIN 934321701 · Headquarters: Castle Rock, CO, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Beast of Burden Recovery and Education Center Inc

    EIN 993557983 · Headquarters: Castle Rock, CO, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  55. Beautiful San Antonio Limited

    EIN 393195695 · Headquarters: Castle Rock, CO, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Bet Lev Foundation

    EIN 251905937 · Headquarters: CASTLE ROCK, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  57. Beyond A Bike

    EIN 863004915 · Headquarters: Castle Rock, CO, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Beyond Samaria Inc

    EIN 205788077 · Headquarters: castle rock, CO, US · Religion Related · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  59. Birth Network

    EIN 204851443 · Headquarters: Castle Rock, CO, US · Health Care · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  60. Biscuits Buddies

    EIN 920572273 · Headquarters: CASTLE ROCK, CO, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Bobbys House

    EIN 824450842 · Headquarters: Castle Rock, CO, US · Mental Health & Crisis Intervention · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  62. Body Mind Flow

    EIN 842496985 · Headquarters: Castle Rock, CO, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  63. Boulder Rotary Club Foundation Inc

    EIN 841234841 · Headquarters: Castle Rock, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. Bourbon Ranch Society

    EIN 873735744 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Boutique Dance Academy Booster Club

    EIN 465180398 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  66. Box State Bad Boys

    EIN 833614945 · Headquarters: Castle Rock, CO, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. Braveheart Horse Rescue

    EIN 460813277 · Headquarters: Castle Rock, CO, US · Animal Related · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  68. Broken Tree Community Center

    EIN 453736375 · Headquarters: Castle Rock, CO, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Buie Major Cure Corporation

    EIN 721557456 · Headquarters: Castle Rock, CO, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  70. Build Affordably Colorado

    EIN 921296463 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Cambria House Corporation

    EIN 474060183 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  72. Camp Rosalie

    EIN 861753903 · Headquarters: CASTLE ROCK, CO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  73. Camp Sycamore Genesis Fund

    EIN 270517613 · Headquarters: CASTLE ROCK, CO, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Cancerclimber Association

    EIN 571121580 · Headquarters: Castle rock, CO, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Canyonquests for Vets

    EIN 474439430 · Headquarters: Castle Rock, CO, US · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  76. Caring Keewee

    EIN 841837485 · Headquarters: Castle Rock, CO, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Castle Country Assisted Living Inc

    EIN 742549631 · Headquarters: CASTLE ROCK, CO, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Castle Crocs

    EIN 204566158 · Headquarters: CASTLE ROCK, CO, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Castle Pines Recreation Center Group

    EIN 205983343 · Headquarters: Castle Rock, CO, US · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  80. Castle Pines Scholarship Foundation

    EIN 203554283 · Headquarters: CASTLE ROCK, CO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Castle Rock Artist Cooperative

    EIN 842601194 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Castle Rock Arts and Culture Founda Tion

    EIN 413764299 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Castle Rock Band

    EIN 841495624 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Castle Rock Chamber Foundation

    EIN 821341624 · Headquarters: CASTLE ROCK, CO, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Castle Rock Chamber of Commerce

    EIN 840802658 · Headquarters: CASTLE ROCK, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Castle Rock Chorale

    EIN 452674603 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Castle Rock Christian Academy

    EIN 851346613 · Headquarters: Castle Rock, CO, United States · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  88. Castle Rock Civil War Unit

    EIN 453887486 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  89. Castle Rock Clubhouse Co

    EIN 814391644 · Headquarters: Castle Rock, CO, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Castle Rock Colorado Genealogical Society

    EIN 461277190 · Headquarters: Castle Rock, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Castle Rock Cudas Youth Swim Team

    EIN 470892174 · Headquarters: CASTLE ROCK, CO, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Castle Rock Economic Development Council

    EIN 841445735 · Headquarters: CASTLE ROCK, CO, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Castle Rock Elementary PTO

    EIN 475175285 · Headquarters: Castle Rock, CO, USA · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  94. Castle Rock Fastpitch Softball Association

    EIN 263680376 · Headquarters: Castle Rock, CO, US · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  95. Castle Rock Fire Department Pipes and Drums

    EIN 832087263 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Castle Rock Greenway Foundation Inc

    EIN 742288484 · Headquarters: Castle Rock, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Castle Rock Gymnastics Booster Club Inc

    EIN 264009190 · Headquarters: CASTLE ROCK, CO, US · Recreation & Sports · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  98. Castle Rock High Noon Rotary Foundation

    EIN 204513486 · Headquarters: Castle Rock, CO, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  99. Castle Rock Historical Society

    EIN 841212313 · Headquarters: Castle Rock, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Castle Rock Jiu Jitsu Foundation

    EIN 934351088 · Headquarters: Castle Rock, CO, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

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