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. Refocus Outreach Ministry Inc

    EIN 061536803 · Headquarters: Bridgeport, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Reforest the Tropics Incorporated

    EIN 061449475 · Headquarters: MYSTIC, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Refrigeration Service Engineers Society

    EIN 066070042 · Headquarters: Hamden, CT, US · Science & Technology · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. Refrigeration Service Engineers Society

    EIN 510184337 · Headquarters: enfield, CT, US · Science & Technology · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  5. Refrigeration Services Engineers Society

    EIN 066068942 · Headquarters: Newington, CT, US · Science & Technology · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  6. Refuge Inc

    EIN 821567410 · Headquarters: STORRS, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  7. Refugee Womens Center

    EIN 934550092 · Headquarters: East Hartford, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Regan Foundation Inc

    EIN 871436034 · Headquarters: Wallingford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  9. Regap of Connecticut Inc

    EIN 222811679 · Headquarters: WOODBRIDGE, CT, US · Animal Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  10. Reggies Pet Project Inc

    EIN 800825445 · Headquarters: Norwalk, CT, US · Animal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  11. Region 10 Make a Mark Inc

    EIN 841764369 · Headquarters: Burlington, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Region 15 Pto Perpetual Fund

    EIN 061335454 · Headquarters: Southbury, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Region 20 Education Association

    EIN 991337490 · Headquarters: Litchfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Region 4 Education Foundation Inc

    EIN 061512652 · Headquarters: ESSEX, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Region 5 Dive Team Inc

    EIN 472167325 · Headquarters: Middlebury, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Region 6 American Quarter Horse Affiliates

    EIN 020501423 · Headquarters: HARWINTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Region 7 Education Fund Inc

    EIN 264059845 · Headquarters: Pleasant Valley, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  18. Region I Histotechnologists Inc

    EIN 571214360 · Headquarters: Mansfield Center, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  19. Region Ii Regional Mental Health Board Inc

    EIN 060943715 · Headquarters: MIDDLETOWN, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2017 · Primary form: IRS Form 990

  20. Regional Committee for the Development of Trouin Haiti - Core

    EIN 274586449 · Headquarters: Stratford, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Regional Data Cooperative for Greater New Haven Inc

    EIN 061567201 · Headquarters: NEW HAVEN, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Regional District Eleven Scholarship-loan Fund Inc

    EIN 237017651 · Headquarters: CHAPLIN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Regional Hospice

    EIN 271315238 · Headquarters: Danbury, CT, US · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990

  24. Regional Hospice and Home Care of Western Connecticut Inc

    EIN 061178847 · Headquarters: DANBURY, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Regional Housing Rehabilitation Inst of Ct

    EIN 060993250 · Headquarters: WOODBRIDGE, CT, USA · Housing & Shelter · Latest available filing year: 2018 · Primary form: IRS Form 990

  26. Regional Multicultural Magnet School Foundation Inc

    EIN 061484526 · Headquarters: New London, CT, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  27. Regional No 7 Band Parents Association

    EIN 237061258 · Headquarters: Winsted, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Regional School District 18 Fed of Non- Certified Employees

    EIN 208079101 · Headquarters: OLD LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Regional School District 19 Administrators Association

    EIN 842102925 · Headquarters: Storrs, CT, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Regional School District No 17 Support Services Association Inc

    EIN 208903303 · Headquarters: Madison, CT, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Regional Water Authority Employees Contributory

    EIN 060878647 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. Regional Water Authority Employees Credit Union Inc

    EIN 060724181 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. Regional YMCA of Western CT

    EIN 066051610 · Headquarters: BROOKFIELD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Registrars of Voters of Connecticut Inc

    EIN 300491082 · Headquarters: NORTH GROSVENORDALE, CT, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Registry of Interpreters for the Deaf

    EIN 753166751 · Headquarters: Norfolk, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. Rehoboth Empowerment Group Inc

    EIN 813634961 · Headquarters: BLOOMFIELD, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. Rehoboth International Link

    EIN 473258257 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  38. Reid & Riege Foundation 42385000017

    EIN 061077969 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. Reigners International Ministry Corp

    EIN 331964111 · Headquarters: MANCHESTER, CT, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. Reimagine Schooltech Inc

    EIN 882648032 · Headquarters: Ansonia, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Reino Unido Inc

    EIN 873301789 · Headquarters: Southbury, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Reinstitute Inc

    EIN 562609577 · Headquarters: STAMFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Reintegrationworks Inc

    EIN 921682087 · Headquarters: Milford, CT, US · Crime & Legal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Reisler Family Foundation

    EIN 134150716 · Headquarters: BROOKFIELD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  45. Rejoy Project Inc

    EIN 870826262 · Headquarters: Clinton, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Rejoyce Ct

    EIN 871731195 · Headquarters: Hartford, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Rekhta Americas Inc

    EIN 831083624 · Headquarters: COS COB, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  48. Reliance Health Inc

    EIN 061011343 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Religion Media Company

    EIN 844296131 · Headquarters: RIVERSIDE, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Religious Coalition for Reproductive Choice of Ct Inc

    EIN 753118352 · Headquarters: Guilford, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  51. Religious Education Association

    EIN 131678636 · Headquarters: NEW HAVEN, CT, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  52. Remarkable Idealab Inc

    EIN 851649535 · Headquarters: North Stonington, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  53. Remarkable Steam Inc

    EIN 461803605 · Headquarters: Westport, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. Remedy Inc

    EIN 223249982 · Headquarters: New haven, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  55. Remembering Rylan Inc

    EIN 871501197 · Headquarters: East Hartford, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Remington Foundation Inc C/o Kevin L Dumas Cpa

    EIN 510487546 · Headquarters: NEW MILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  57. Remnant Movement Foundation Inc

    EIN 331258960 · Headquarters: Waterbury, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Remodeling Contractors Association Inc

    EIN 060938444 · Headquarters: wolcott, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  59. Remote Ecologist Inc

    EIN 853508580 · Headquarters: DARIEN, CT, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Renaissance City Development Association

    EIN 060995362 · Headquarters: NEW LONDON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Renaissance Theatre Co

    EIN 060997711 · Headquarters: Cheshire, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Renaissance-now Llc

    EIN 824661282 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Renard Family Foundation

    EIN 522016583 · Headquarters: SHERMAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  64. Renbrook School

    EIN 060646702 · Headquarters: WEST HARTFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Renew East Lyme Inc

    EIN 311779945 · Headquarters: Niantic, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  66. Renew Northeast Inc

    EIN 300557554 · Headquarters: MADISON, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Renewable Energy and Efficiency Business Association Inc

    EIN 272678586 · Headquarters: West Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  68. Renewal House Inc

    EIN 223221915 · Headquarters: DANBURY, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Renewed Hope

    EIN 834149122 · Headquarters: DERBY, CT, US · Crime & Legal Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. Rennix Inc

    EIN 822181424 · Headquarters: TRUMBULL, CT, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  71. Repairing the Breaches Family Services Ministry Inc

    EIN 223881392 · Headquarters: new britain, CT, US · Human Services · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  72. Repertory Company

    EIN 061532742 · Headquarters: Moosup, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Republic of Vietnam Veterans and Officials Assoc of Connecticut Inc

    EIN 223176272 · Headquarters: EAST HARTFORD, CT, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  74. Reputation Athletics Booster Inc

    EIN 333222220 · Headquarters: SOUTH WINDSOR, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Rescue Dog Village Guardian, Inc.

    EIN 471501375 · Headquarters: PRESTON, Connecticut, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Rescue Fire Company No 5

    EIN 237291455 · Headquarters: Branford, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Rescue Me

    EIN 061396771 · Headquarters: TOLLAND, CT, US · Animal Related · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  78. Rescue Me Small Animal Placement Inc

    EIN 843965732 · Headquarters: Berlin, CT, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Rescue Temple Eht

    EIN 822949399 · Headquarters: New Britain, CT, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  80. Rescues Who Rescue Inc

    EIN 113694789 · Headquarters: BETHANY, CT, US · Animal Related · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  81. Research & Support Options Inc

    EIN 870987301 · Headquarters: Somers, CT, US · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Research and Social Media Collaborative Corp

    EIN 261466810 · Headquarters: STAMFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990

  83. Research Fund for Waldenstrom's Ltd

    EIN 134178255 · Headquarters: DANBURY, CT, USA · Medical Research · Latest available filing year: 2012 · Primary form: IRS Form 990

  84. Research Girl

    EIN 993134941 · Headquarters: Glastonbury, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Research in Osteochondritis Dissecans of the Knee Inc

    EIN 462560309 · Headquarters: Farmington, CT, USA · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Reserve Officers Association of the United States

    EIN 237154252 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Reserve Police Officers Association

    EIN 510371265 · Headquarters: DERBY, CT, USA · Crime & Legal Related · Latest available filing year: 2017 · Primary form: IRS Form 990

  88. Reshaping Reality Inc

    EIN 932661730 · Headquarters: Wilton, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  89. Residential Management Servicesinc

    EIN 061031971 · Headquarters: KENSINGTON, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Residents Advocationg Conservation Inc

    EIN 223027756 · Headquarters: MARLBOROUGH, CT, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  91. Residents for Appropriate Development Inc

    EIN 061564704 · Headquarters: GREENWICH, CT, US · Public & Societal Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  92. Resilience Grows Here Inc

    EIN 834578415 · Headquarters: EAST GRANBY, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  93. Resiliency Center of Newtown

    EIN 473404300 · Headquarters: NEWTOWN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Resiliency Resource Institute Inc

    EIN 383785490 · Headquarters: Hartford, CT, US · Human Services · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  95. Resilient Futures Make It Your Chan Ce Inc

    EIN 394525600 · Headquarters: Waterbury, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Resistencia Medica Inc

    EIN 853578715 · Headquarters: New Haven, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Resolve Incorporated

    EIN 061100157 · Headquarters: Wethersfield, CT, US · Health Care · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  98. Resonance Horsemanship Inc

    EIN 394886214 · Headquarters: Greenwich, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Resonant Motion Inc

    EIN 461360523 · Headquarters: Middletown, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Resources in Search and Rescue Inc

    EIN 271153761 · Headquarters: Monroe, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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