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. The Sam & Elizabeth Colt Heritage Center Inc

    EIN 522385333 · Headquarters: BRISTOL, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  2. The Samaritans Inc

    EIN 222496954 · Headquarters: HARTFORD, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  3. The Sanctum Inc

    EIN 222945484 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. The Sandbox Foundation Inc

    EIN 845125610 · Headquarters: Groton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. The Sandler Foundation C/o Morris Sandler

    EIN 363588701 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  6. The Santoro Family Charitable Foundation

    EIN 205676915 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  7. The Sara and David Carson Family Foundation Inc

    EIN 202977265 · Headquarters: WEST HARTFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  8. The Sara B Wardell Family Foundation Inc

    EIN 201034179 · Headquarters: SALISBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  9. The Sassafras Foundation

    EIN 203082522 · Headquarters: BRANFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  10. The Saugatuck Cooperative Inc C/o the Property Group of Ct

    EIN 061462004 · Headquarters: STAMFORD, CT, USA · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990

  11. The Saunders Foundation Co Shipman & Goodwin

    EIN 066284362 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  12. The Savin Rock Carousel Committee

    EIN 300389314 · Headquarters: WEST HAVEN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. The Saxe Foundation Inc

    EIN 066037207 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  14. The Schechter Foundation

    EIN 133157311 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  15. The Schiele Family Foundation Inc

    EIN 061566137 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. The Schloss Family Foundation Inc C/o Edwin Schloss

    EIN 133935646 · Headquarters: NEW CANAAN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  17. The School for Ethical Education Inc

    EIN 061411577 · Headquarters: GREENS FARMS, CT, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  18. The School of Innovative Learning Inc

    EIN 822097683 · Headquarters: Stafford Springs, CT, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  19. The Schumaker Foundation Inc

    EIN 300500651 · Headquarters: Derby, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  20. The Schuyler Foundation for Career Bridges

    EIN 134104282 · Headquarters: STAMFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. The Schwedel Foundation

    EIN 066068790 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  22. The Scottish Rite Building Corp

    EIN 061252811 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. The Scotty Fund Inc Linda Anderson

    EIN 061466061 · Headquarters: BETHEL, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. The Scriptural Research & Publishing Co

    EIN 061423812 · Headquarters: New Britain, CT, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. The Seelert Foundation Inc

    EIN 061601116 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  26. The Seevers Family Foundation

    EIN 133437890 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  27. The Seifert Family Foundation

    EIN 201277158 · Headquarters: WILTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  28. The Selander Foundation

    EIN 202024998 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  29. The Seminary of the Open Bible

    EIN 454286231 · Headquarters: Hamden, CT, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. The Senior Housing Corporation of East Haddam

    EIN 061021497 · Headquarters: MOODUS, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  31. The Serc Foundation Inc

    EIN 383978620 · Headquarters: WATERBURY, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. The Sergio Franchi Music Foundation

    EIN 832303882 · Headquarters: STONINGTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  33. The Servants

    EIN 844455590 · Headquarters: Thompson, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. The Seymour Babe Ruth League of Seymour Connecticut

    EIN 061133042 · Headquarters: Seymour, CT, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  35. The Shanley Family Foundation

    EIN 061548816 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  36. The Shei'rah Foundation Inc

    EIN 311727614 · Headquarters: WARREN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-PF

  37. The Sheldon and Marilyn Fireman Family Foundation

    EIN 208006985 · Headquarters: Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  38. The Shelley and Donald Meltzer Family Foundation

    EIN 262419063 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. The Shelter for Women Inc

    EIN 060665976 · Headquarters: HARTFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. The Sheppard Foundation

    EIN 226388719 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  41. The Sherman Historical Society

    EIN 510176086 · Headquarters: Sherman, CT, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. The Sherwin B Nuland Foundation for Palliative Care

    EIN 472161414 · Headquarters: Hamden, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. The Shimkin Foundation

    EIN 136022234 · Headquarters: DARIEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  44. The Shiptrust of New York Incorporated

    EIN 133435250 · Headquarters: Norwalk, CT, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  45. The Shorehaven Golf Club Incorporated

    EIN 060534650 · Headquarters: EAST NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. The Shoreline Chorale

    EIN 475407444 · Headquarters: MADISON, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. The Shoreline Soup Kitchens

    EIN 061412728 · Headquarters: ESSEX, CT, USA · Food, Agriculture & Nutrition · Latest available filing year: 2014 · Primary form: IRS Form 990

  48. The Shoreline Soup Kitchens & Pantries Inc

    EIN 463773017 · Headquarters: ESSEX, CT, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. The Shulansky Foundation Inc

    EIN 066042338 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  50. The Sidran Traumatic Stress Institute

    EIN 752163487 · Headquarters: NEW BRITAIN, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990

  51. The Sigma Chapter of the Fraternity of Delta Psi C/o Marcum Llp

    EIN 237315146 · Headquarters: NEW HAVEN, CT, USA · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  52. The Silver City Council No2 Knights of Columbus Charitable Foundation Inc

    EIN 061839072 · Headquarters: Newington, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  53. The Silverbird 29 Fund

    EIN 822223488 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  54. The Simon Foundation Inc

    EIN 562489875 · Headquarters: LITCHFIELD, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  55. The Simsbury Volunteer Fire Co Inc

    EIN 066059857 · Headquarters: SIMSBURY, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. The Sky Bight Foundation Inc

    EIN 223514004 · Headquarters: BRISTOL, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  57. The Skye Foundation Inc C/o Nicholas Lloyd

    EIN 462497843 · Headquarters: NEW HAVEN, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  58. The Slason Foundation Inc

    EIN 222867554 · Headquarters: SOUTHINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  59. The Slate School Inc

    EIN 815374114 · Headquarters: NORTH HAVEN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. The Sleepy Cat Farm Foundation

    EIN 477218234 · Headquarters: GREENWICH, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  61. The Small Things Inc

    EIN 452466306 · Headquarters: Branford, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. The Smith Family Foundation Inc

    EIN 203103127 · Headquarters: CANTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  63. The Soccer Club of Guilford Inc

    EIN 222597008 · Headquarters: Guilford, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. The Society for the Preservation of the Great American Songbook Inc

    EIN 320246313 · Headquarters: FARMINGTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  65. The Society of the Missionaries of the Holy Apostles USA Inc

    EIN 900644783 · Headquarters: CROMWELL, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. The Solar Building Association Incorporated

    EIN 237651008 · Headquarters: Rocky Hill, CT, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  67. The Somerset East Foundation Inc Co Michael Romney

    EIN 263528021 · Headquarters: NORWALK, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  68. The Sonja Foundation

    EIN 137371356 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  69. The Sooner Foundation

    EIN 270187051 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  70. The Sound Beach Volunteer Fire

    EIN 311703883 · Headquarters: OLD GREENWICH, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. The South Windsor Volunteer Fire Department Inc

    EIN 061501210 · Headquarters: SOUTH WINDSOR, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. The Southbury Training School Foundation Inc

    EIN 066075079 · Headquarters: SOUTHBURY, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. The Southport Conservancy Inc

    EIN 061057342 · Headquarters: SOUTHPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. The Southport School Inc

    EIN 061135389 · Headquarters: SOUTHPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. The Space for Good Inc

    EIN 844613632 · Headquarters: WESTON, CT, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. The Spark Institute Inc

    EIN 453940350 · Headquarters: SIMSBURY, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. The Spector Criminal Justice Training Network Inc

    EIN 237374884 · Headquarters: MANCHESTER, CT, USA · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  78. The Sphinx Foundation Inc

    EIN 133798195 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF

  79. The Spiros Segalas Charitable Trust

    EIN 136848308 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. The Spizzwinks of Yale University Inc

    EIN 141919469 · Headquarters: New Haven, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. The Spott Unlimited Inc

    EIN 825077835 · Headquarters: New Britain, CT, US · Youth Development · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  82. The Square Foot Theatre Company Inc

    EIN 272801062 · Headquarters: WALLINGFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990

  83. The Stafford Historical Society Inc

    EIN 060990272 · Headquarters: Stafford Springs, CT, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  84. The Stamford Fire Safety Foundation Fund Inc

    EIN 454700756 · Headquarters: STAMFORD, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  85. The Stamford Historical Society Inc

    EIN 066039238 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. The Stamford JCC

    EIN 060646918 · Headquarters: Stamford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. The Stanford Fellowship for Jewish Learning Inc

    EIN 061466920 · Headquarters: Stamford, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  88. The Stanley Golf Club Incorporated

    EIN 222517634 · Headquarters: New Britain, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. The Stanwich Club Incorporated

    EIN 060790586 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  90. The Stanwich School Inc

    EIN 061506795 · Headquarters: GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. The Stemie Coalition Inc

    EIN 475426484 · Headquarters: MANSFIELD CTR, CT, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  92. The Stephen & Sharon Bassock Charitable Trust

    EIN 237859165 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  93. The Stephen & Suzanne Weiss Foundation I

    EIN 133384021 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  94. The Stephen - Sandra Waters Foundation

    EIN 222642703 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  95. The Stephen W Craig Family FoundationInc

    EIN 454092966 · Headquarters: Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  96. The Stevek Foundation Inc C/o Cramer & Anderson

    EIN 753140355 · Headquarters: DANBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  97. The Steven B Grune Family Foundation

    EIN 334507299 · Headquarters: Darien, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  98. The Stewardship Foundation Inc

    EIN 205111306 · Headquarters: NEW HAVEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2010 · Primary form: IRS Form 990-PF

  99. The Stewart & Constance Greenfield Foundation

    EIN 066301506 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  100. The Stoddard Family Foundation C/o Pamela Stoddard

    EIN 476247032 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

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