Nonprofits in Connecticut

Nonprofits in Connecticut. Browse 26,993 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. Harc Foundationinc

    EIN 463961921 · Headquarters: HARTFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Harc Inc

    EIN 060710289 · Headquarters: HARTFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Hardy Plant Society of New England Connecticut Chapter Inc

    EIN 061615495 · Headquarters: Franklin, CT, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. Hargrove Ministries Inc

    EIN 881105493 · Headquarters: Bristol, CT, US · Religion Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  5. Hargus Family Charitable Trust

    EIN 844442271 · Headquarters: Gales Ferry, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  6. Harleys Animal Haven

    EIN 333574854 · Headquarters: NORTH HAVEN, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Harlows Heroes

    EIN 931593143 · Headquarters: Oakdale, CT, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Harmes C Fishback Foundation Trust No 2

    EIN 936523724 · Headquarters: LAKEVILLE, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  9. Harmonetiks Project Inc

    EIN 931865889 · Headquarters: Westport, CT, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Harmony 4 Kidz Inc

    EIN 383763551 · Headquarters: Fairfield, CT, US · Youth Development · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  11. Harmony Charity Organization Inc

    EIN 473970817 · Headquarters: Hartford, CT, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  12. Harmony Family Resource Group Inc

    EIN 412237714 · Headquarters: voluntown, CT, US · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  13. Harmony Fellow Craft Club of New Canaan Inc

    EIN 066069251 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. Harmony Forest Inc

    EIN 861588996 · Headquarters: RIVERTON, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Harmony Grand Chapter Oes

    EIN 874571747 · Headquarters: New Britain, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Harmony House Rabbit Sanctuary

    EIN 061780290 · Headquarters: Winsted, CT, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  17. Harmony Lodge 42 Af & Am

    EIN 066107171 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Harness All Possibilities Inc

    EIN 814511699 · Headquarters: Cos Cob, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Harold & Ella Richards Society Inc

    EIN 463431201 · Headquarters: WINDSOR, CT, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  20. Harold M Johnson Jr Memorial Scholarship Foundation Inc

    EIN 454811055 · Headquarters: Waterford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Harold W McGraw III Foundation Inc

    EIN 823557736 · Headquarters: Stamford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  22. Harold Webster Smith Foundation Inc

    EIN 222947047 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  23. Harp Guitar Gathering

    EIN 842104618 · Headquarters: West Cornwall, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Harp Inc Humane Alternatives for Resolving Problems

    EIN 061496485 · Headquarters: Essex, CT, US · Animal Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  25. Harpoon Club Inc

    EIN 822700611 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Harriet & M Fred Cartoun Foundation Inc

    EIN 136161735 · Headquarters: NEWTOWN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  27. Harriet Beecher Stowe Center Inc

    EIN 066042822 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Harriet U Allyn Testamentary Trust

    EIN 060646663 · Headquarters: NEW LONDON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Harriott Community Health Initiative Inc

    EIN 853957907 · Headquarters: hartford, CT, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Harris Legacy Foundation

    EIN 471545339 · Headquarters: New Milford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  31. Harrison Family Foundation Inc

    EIN 332484948 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  32. Harry E Malcarne & Florence G Malcarne

    EIN 306664352 · Headquarters: ESSEX, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  33. Harry F & Carol H Barnes Family Foundation

    EIN 208718203 · Headquarters: BRISTOL, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. Harry Rosen House Foundation Inc

    EIN 542151231 · Headquarters: MILFORD, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Hart Residences Inc

    EIN 061018994 · Headquarters: NORTH HAVEN, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Hart United Inc

    EIN 061016076 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Hart Wellness Collaborative

    EIN 991315525 · Headquarters: Middletown, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Hartbeat Ensemble Inc

    EIN 061633100 · Headquarters: Hartford, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  39. Hartbeat Track Club Inc

    EIN 853567815 · Headquarters: Waterford, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Harter Family Charitable Foundation

    EIN 043537365 · Headquarters: NORTH BRANFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  41. Harteveldt Foundation Inc

    EIN 131882108 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  42. Hartford & District Pipe Band Inc

    EIN 061514875 · Headquarters: West Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Hartford Action Plan on Infant Health

    EIN 222768716 · Headquarters: MIDDLETOWN, CT, USA · Human Services · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  44. Hartford Alumni Kappa Alpha Psi Fraternity

    EIN 237279485 · Headquarters: Hartford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Hartford Anesthesiology Associates Foundation Inc

    EIN 010599855 · Headquarters: EAST HARTFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  46. Hartford Area Roller Derby Sports League

    EIN 812899131 · Headquarters: Manchester, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Hartford Area Snet Employees Community Service Fund

    EIN 066179364 · Headquarters: MERIDEN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Hartford Areas Rally Together Inc

    EIN 060938125 · Headquarters: HARTFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990

  49. Hartford Art School Endowment Inc

    EIN 061256949 · Headquarters: WEST HARTFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Hartford Artisans Weaving Center Inc

    EIN 263608136 · Headquarters: Hartford, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Hartford Association for the Education of Young Children Inc

    EIN 222655553 · Headquarters: Wethersfield, CT, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  52. Hartford Audubon Society Inc

    EIN 237118929 · Headquarters: West Hartford, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Hartford Bags of Love

    EIN 814805313 · Headquarters: South Windsor, CT, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  54. Hartford Botanical Garden Planning Committee Inc

    EIN 061544913 · Headquarters: Hartford, CT, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  55. Hartford Braillers Blind Hockey Inc

    EIN 831713887 · Headquarters: Avon, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Hartford Brainard Airport Association Inc

    EIN 880596496 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  57. Hartford Business Improvement District

    EIN 412229120 · Headquarters: HARTFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Hartford Canoe Club Inc

    EIN 060383295 · Headquarters: East Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Hartford Catholic Worker Inc

    EIN 261223920 · Headquarters: Hartford, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Hartford Chapt No 2115 Women of the Moose

    EIN 061514862 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  61. Hartford Chapter of Construction Specifications Institute Inc

    EIN 061414606 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Hartford Chorale Inc

    EIN 060884892 · Headquarters: HARTFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Hartford City Ballet Inc

    EIN 030566472 · Headquarters: Hartford, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  64. Hartford City Mission Inc

    EIN 201051758 · Headquarters: HARTFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Hartford Club Foundation Inc

    EIN 263276640 · Headquarters: Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  66. Hartford Communities That Care Inc

    EIN 432080655 · Headquarters: Hartford, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Hartford Community Leaders Developmental Corporation

    EIN 831542161 · Headquarters: HARTFORD, CT, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Hartford Community Loan Fund Inc

    EIN 061423598 · Headquarters: HARTFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Hartford Community Mental Health Center

    EIN 060994703 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Hartford Conecticut Public Housing Employees L 1161 Afl Cio

    EIN 066107720 · Headquarters: Lisbon, CT, US · Housing & Shelter · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  71. Hartford Cooperative Extension Council Inc

    EIN 066039120 · Headquarters: Farmington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Hartford Countly Legal Access

    EIN 473687782 · Headquarters: West Simsbury, CT, US · Crime & Legal Related · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  73. Hartford County 4-H Camp Inc

    EIN 066071412 · Headquarters: South Windsor, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Hartford County 4-H Fair Assoc Inc

    EIN 061008294 · Headquarters: FARMINGTON, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Hartford County Farm Bureau Inc

    EIN 060665988 · Headquarters: HEBRON, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  76. Hartford County Fire Emergency Plan Inc

    EIN 237348719 · Headquarters: PLAINVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Hartford County Medical Association Inc

    EIN 060681545 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Hartford County Medical Foundation Incorporated

    EIN 066097822 · Headquarters: North Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Hartford County Tax Collectors Association Inc

    EIN 473389916 · Headquarters: Simsbury, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Hartford County Veterinary Medical Association Inc

    EIN 922088834 · Headquarters: WETHERSFIELD, CT, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Hartford Curling Club Inc

    EIN 475261298 · Headquarters: Burlington, CT, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  82. Hartford Cystic Fibrosis Inpatient Fund Inc

    EIN 475445790 · Headquarters: SIMSBURY, CT, US · Health Care · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  83. Hartford Dance Collective

    EIN 833415925 · Headquarters: Hartford, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Hartford Decides Inc

    EIN 842249999 · Headquarters: Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Hartford Dental Society Inc

    EIN 066039487 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Hartford Dispensary Real Estate Inc

    EIN 222948684 · Headquarters: MANCHESTER, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Hartford Educational Support Personnel

    EIN 061312134 · Headquarters: HARTFORD, CT, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Hartford Electricians Joint Apprenticeship and Training Committee

    EIN 060854364 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Hartford Employee Club

    EIN 264368536 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  90. Hartford Employee Club Inc

    EIN 264190687 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  91. Hartford Employee Club Inc

    EIN 264224350 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  92. Hartford Employee Club Inc

    EIN 264224861 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  93. Hartford Employee Club Inc

    EIN 264225997 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  94. Hartford Employee Club Inc

    EIN 264236233 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  95. Hartford Employee Club Inc

    EIN 264253804 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  96. Hartford Employee Club Inc

    EIN 264261210 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  97. Hartford Employee Club Inc

    EIN 264263431 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  98. Hartford Employee Club Inc

    EIN 264263908 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  99. Hartford Employee Club Inc

    EIN 264270601 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  100. Hartford Employee Club Inc

    EIN 264271048 · Headquarters: Hartford, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

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