Nonprofits in Niwot, Colorado

Nonprofits in Niwot, Colorado. Browse 76 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. 1940'S Ball Nfp

    EIN 900668554 · Headquarters: Niwot, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Ahimsa Foundation

    EIN 852700743 · Headquarters: Niwot, CO, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  3. Benevolence Retreat Society

    EIN 461235177 · Headquarters: Niwot, CO, US · Religion Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  4. Berlin Family Foundation

    EIN 222783295 · Headquarters: Niwot, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  5. Boulder County Railway Historical Society Inc

    EIN 841460162 · Headquarters: Niwot, CO, US · Arts, Culture & Humanities · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  6. Boulder Sister Cities Program

    EIN 742346071 · Headquarters: Niwot, CO, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Bruin Theta Chi Foundation Inc

    EIN 843225597 · Headquarters: Niwot, CO, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Burrell Family Foundation

    EIN 841518229 · Headquarters: NIWOT, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  9. Ceo 4 Teens

    EIN 260198652 · Headquarters: Niwot, CO, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Children First of the Rockies

    EIN 841497910 · Headquarters: NIWOT, CO, USA · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990

  11. Colorado 4-H Foundation Inc

    EIN 841082850 · Headquarters: Niwot, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Colorado Cleantech Industry Association Foundation Inc

    EIN 455224981 · Headquarters: Niwot, CO, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Colorado Cleantech Industry Association Inc

    EIN 263530463 · Headquarters: Niwot, CO, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Colorado Friends of Old Time Music & Dance

    EIN 840902425 · Headquarters: Niwot, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Colorado Jazz Group

    EIN 463772908 · Headquarters: NIWOT, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  16. Colorado State Grange Patrons of Husbandry

    EIN 846059019 · Headquarters: Niwot, CO, US · Food, Agriculture & Nutrition · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  17. Community Source Funding

    EIN 462738799 · Headquarters: Niwot, CO, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  18. Cougarball Corp

    EIN 932524007 · Headquarters: NIWOT, CO, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. Country Creek Homeowners Assn Inc

    EIN 841038805 · Headquarters: Niwot, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Dont Be Stingy

    EIN 261799195 · Headquarters: Niwot, CO, US · Human Services · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  21. Friends of Sierra

    EIN 832716638 · Headquarters: Niwot, CO, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  22. Garden Bloggers Fling of Denver

    EIN 830754301 · Headquarters: NIWOT, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  23. Gerry Spence Method at Thunderhead Ranch

    EIN 863971781 · Headquarters: NIWOT, CO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. High Plains Permaculture

    EIN 934779841 · Headquarters: NIWOT, CO, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. I Love Leos

    EIN 883349699 · Headquarters: Niwot, CO, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Internet and Technology Addicts Anonymous

    EIN 863156412 · Headquarters: NIWOT, CO, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Karuna Foundation

    EIN 854026412 · Headquarters: Niwot, CO, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Lebor Family Foundation Inc

    EIN 650707660 · Headquarters: NIWOT, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  29. Left Hand Ditch Company Attn Terry Plummer

    EIN 840478128 · Headquarters: NIWOT, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Left Hand Grange 9

    EIN 840448446 · Headquarters: NIWOT, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Left Hand Valley Courier

    EIN 934777424 · Headquarters: NIWOT, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Lefthand Watershed Oversight Group

    EIN 201248361 · Headquarters: NIWOT, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Life Time Advocacy Inc

    EIN 453135404 · Headquarters: Niwot, CO, US · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  34. Make a Hero Inc

    EIN 452806024 · Headquarters: Niwot, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Maverick Foundation Inc

    EIN 208976527 · Headquarters: NIWOT, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  36. Mind Oasis

    EIN 823180186 · Headquarters: Niwot, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. New Table Mountain Ditch Company

    EIN 471746661 · Headquarters: Niwot, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. New Us Agency for International Development Nusaid Inc

    EIN 334507878 · Headquarters: Niwot, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Niwot Business Association

    EIN 421595363 · Headquarters: NIWOT, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Niwot Community Association Inc

    EIN 841087993 · Headquarters: Niwot, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Niwot Community Connection

    EIN 923115914 · Headquarters: Niwot, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  42. Niwot Cougar Baseball

    EIN 920858439 · Headquarters: Niwot, CO, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  43. Niwot Cultural Arts Association

    EIN 264164620 · Headquarters: Niwot, CO, United States · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Niwot Elementary School Parent Teacher Advisory Council Inc

    EIN 841519662 · Headquarters: NIWOT, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Niwot Hall Inc

    EIN 990462855 · Headquarters: NIWOT, CO, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Niwot High School Boosters Inc

    EIN 412078067 · Headquarters: NIWOT, CO, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Niwot High School Education Foundation Inc

    EIN 841283706 · Headquarters: Niwot, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Niwot Historical Society

    EIN 841298668 · Headquarters: Niwot, CO, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Niwot Incorporation Committee

    EIN 395117502 · Headquarters: Niwot, CO, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Niwot Patriotic Cookie Moms

    EIN 923105832 · Headquarters: Niwot, CO, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Niwot Youth Sports Inc

    EIN 840706061 · Headquarters: NIWOT, CO, USA · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990

  52. Open Sanctuary Project Inc

    EIN 832139828 · Headquarters: Niwot, CO, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Parenting the Rainbow

    EIN 933582055 · Headquarters: NIWOT, CO, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Pediatric Epilepsy Research Consortium Inc

    EIN 881162919 · Headquarters: NIWOT, CO, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. People and Pollinators Action Network

    EIN 472260229 · Headquarters: NIWOT, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. Professional Foundation Inc

    EIN 841180730 · Headquarters: Niwot, CO, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Rocky Mountain Christian Academy

    EIN 841462872 · Headquarters: Niwot, CO, United States · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Rotary Club of Niwot Foundation Inc

    EIN 455437513 · Headquarters: Niwot, CO, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Rotary International

    EIN 261922597 · Headquarters: Niwot, CO, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Slow Food USA Inc

    EIN 800025746 · Headquarters: Niwot, CO, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Snyder Charitable Foundation

    EIN 261605760 · Headquarters: Niwot, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  62. Somerset Swim and Tennis Club

    EIN 841346396 · Headquarters: NIWOT, CO, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Team Rocky Mountain

    EIN 334428541 · Headquarters: Niwot, CO, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. The Budacz Family Foundation

    EIN 841611504 · Headquarters: Niwot, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  65. The Entrepreneurship Funding Gang

    EIN 472102007 · Headquarters: Niwot, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF

  66. The Gafner Family Foundation

    EIN 562236053 · Headquarters: NIWOT, CO, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  67. The Jared Music Foundation

    EIN 820719154 · Headquarters: Niwot, CO, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. The Peter Fund Inc

    EIN 922948144 · Headquarters: Niwot, CO, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. The Ratna Foundation Mindfulness Peace Project

    EIN 201026581 · Headquarters: Niwot, CO, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. Toastmasters International

    EIN 203213247 · Headquarters: Niwot, CO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  71. Voices Foundation

    EIN 208270079 · Headquarters: Niwot, CO, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Voteyesapril16

    EIN 992367700 · Headquarters: Niwot, CO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. Wildfire Research Center

    EIN 834393500 · Headquarters: Niwot, CO, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Womens International Niwot Club

    EIN 473152272 · Headquarters: Niwot, CO, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Wyoming Quarter Horse Association

    EIN 830291429 · Headquarters: NIWOT, CO, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Ypo Boulder

    EIN 833487838 · Headquarters: NIWOT, CO, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990