Unknown & Unclassified nonprofits in Connecticut

Unknown & Unclassified nonprofits in Connecticut. Browse 7,402 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. Stm Elderly Housing Corporation

    EIN 061336149 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Stockder Henry H Trust

    EIN 066033459 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  3. Stockder Zerline H

    EIN 066080669 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  4. Stoeckel E B Residue Co Trustee 213-099008547454

    EIN 060653108 · Headquarters: WINSTED, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Stone Soup Inc

    EIN 061466438 · Headquarters: West Cornwall, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Stonington Cemetery Association Inc

    EIN 060775074 · Headquarters: STONINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Stonington Country Club Inc

    EIN 061272803 · Headquarters: Stonington, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Stonington Little League

    EIN 222590779 · Headquarters: Pawcatuck, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  9. Stonington Small Boat Association Inc

    EIN 222574168 · Headquarters: Stonington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Stonington Volunteer Ambulance Corps Inc

    EIN 060985677 · Headquarters: Stonington, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Stratfield Fund

    EIN 066046672 · Headquarters: ORANGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  12. Stratford Community Concert Band Inc

    EIN 470985559 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Stratford Ct Police Union Local 407

    EIN 066084970 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. Stratford Federation of Retirees

    EIN 061337627 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  15. Stratford Firemans Benevolent Assoc

    EIN 066037320 · Headquarters: Stratford, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Stratford Library Association

    EIN 060756208 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Stratford Police Benevolent Assoc Inc

    EIN 066063187 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Stratford Rotary Club Inc

    EIN 066047777 · Headquarters: Stratford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Stratford Softball Tournaments Inc

    EIN 061489321 · Headquarters: Statford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Stratford Womens Club Inc

    EIN 060947172 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  21. Stratfprd Baseball Association Inc

    EIN 061051554 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  22. Streicker Foundation Inc

    EIN 061485504 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  23. Strive for Oxford

    EIN 272112464 · Headquarters: Oxford, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  24. Strong God Church Inc

    EIN 881565268 · Headquarters: danbury, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Strum by the Sound

    EIN 392869689 · Headquarters: WEST HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Strut & Fret Inc

    EIN 133014515 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Student National Medical Association University of Ct Chptr

    EIN 061624914 · Headquarters: Farmington, CT, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  28. Studio Art Quilt Assoc Inc

    EIN 770271652 · Headquarters: HEBRON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Submarine Officers Spouses Association New London

    EIN 237248286 · Headquarters: Groton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Subway Cares Foundation Inc

    EIN 861625656 · Headquarters: SHELTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Subway Development Agent Advisory Corporation

    EIN 351815106 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  32. Suffield Cooperative Preschool

    EIN 060865203 · Headquarters: Suffield, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Suffield Country Club Inc

    EIN 060555025 · Headquarters: SUFFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Suffield Firefighters Association Inc

    EIN 066045261 · Headquarters: Suffield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Suffield Foundation for Excellent Schools Inc

    EIN 222789394 · Headquarters: SUFFIELD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Suffield Historical Society

    EIN 066334270 · Headquarters: Suffield, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Suffield Masonic Association

    EIN 066073946 · Headquarters: Suffield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Suffield Players Inc

    EIN 066056943 · Headquarters: Suffield, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Suffieldsoccerclub

    EIN 222965014 · Headquarters: Suffield, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. Summer Campership Fund for Meriden and Wallingford Inc

    EIN 060975919 · Headquarters: Meriden, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Sundown Ski Patrol Inc

    EIN 061107347 · Headquarters: NEW HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Sunshine Fund Incorporated

    EIN 861981531 · Headquarters: Coventry, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Supplemental Unemployment Benefit Plan of Xerox Corp & the Xerographic Division

    EIN 061002325 · Headquarters: Norwalk, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Supporters of Ellington Public Schools

    EIN 844481231 · Headquarters: Ellington, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  45. Supreme Emblem Club of the United States of America Inc

    EIN 061036833 · Headquarters: Putnam, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Supreme Emblem Club of the United States of America Inc

    EIN 061459164 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Supreme Emblem Club of the United States of America Inc

    EIN 066068579 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Supreme Emblem Club of the United States of America Inc

    EIN 066098822 · Headquarters: Naugatuck, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Supreme Emblem Club of the United States of America Inc

    EIN 222627653 · Headquarters: Westbrook, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Supreme Emblem Club of the United States of America Inc

    EIN 942574284 · Headquarters: Middletown, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Supreme Lodge of the Danish Sisterhood

    EIN 361843856 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Surrender Wellness Inc

    EIN 931629218 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. Survivors of Homicide Inc

    EIN 061499257 · Headquarters: Wethersfield, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Susquehanna Valley Flintlocks Inc

    EIN 161067893 · Headquarters: MONROE, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Suzuki Association of Mansfield Inc

    EIN 222627070 · Headquarters: Mansfield, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  56. Svea Social Club Incorporated

    EIN 060556770 · Headquarters: KENSINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Swe - Uscga

    EIN 460945194 · Headquarters: New London, CT, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  58. Swedish Aid Society

    EIN 510188188 · Headquarters: Cheshire, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  59. Swedish Singing Society Norden

    EIN 060765408 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Sweet Adelines International

    EIN 066099462 · Headquarters: Trumbull, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Syd's Book Shack & Boutique

    EIN 862629719 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. T & B Wolff Family Charitable Foundation

    EIN 222655664 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  63. T & M Realty Corporation

    EIN 066071623 · Headquarters: Enfield, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. T Dog Trumbull Corp

    EIN 274376847 · Headquarters: Trumbull, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  65. T Lawrason Riggs Trust C/o Saint Thomas More Corporation

    EIN 066020522 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. T-8306 Habaneros Order of Quetzalcoatl

    EIN 334311621 · Headquarters: Woodbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Tabor Lutheran Cemetery Association Larraine Shepard

    EIN 222666810 · Headquarters: BRANFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Taconic Learning Center Inc

    EIN 061281916 · Headquarters: Lakeville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Taftville Fire Company No 2 Incorporated

    EIN 061100672 · Headquarters: Taftville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Tagd

    EIN 451257471 · Headquarters: Danbury, CT, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  71. Talcott Encore

    EIN 821811637 · Headquarters: Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  72. Tall Cedars of Lebanon of North America

    EIN 237224219 · Headquarters: Bolton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Tamarack Country Club Inc

    EIN 060614943 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Tanguay-magill Unit 80 American Legion Aux Dept of Ct

    EIN 061079897 · Headquarters: Enfield, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  75. Tanstaafl Shooting Club Inc

    EIN 061234375 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  76. Tashua Knolls Womens Golf Association

    EIN 874247024 · Headquarters: DANBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Tau Beta Pi Association Inc

    EIN 061309953 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Tau Beta Pi Association Inc

    EIN 066070059 · Headquarters: North Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Tau Iota Chapter of Omega Psi Phi

    EIN 822537475 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Tau Kappa Epsilon Lambda Sigma Alumni Association Inc

    EIN 814597284 · Headquarters: Portland, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Tau Upsilon Chapter of Connecticut

    EIN 301046694 · Headquarters: Winsted, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. Tbpa New England Area

    EIN 300588160 · Headquarters: South Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  83. Teachers Afl-cio Local Union 933 New Haven Federation of Teachers

    EIN 066076721 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Teachers Unify to End Gun Violence Action

    EIN 934824649 · Headquarters: Danbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Teaching Justice Inc

    EIN 472627601 · Headquarters: Milford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Team John Foundation Inc

    EIN 852799688 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Team Mossman Inc

    EIN 274286060 · Headquarters: Southport, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  88. Teamsters Local Union No 671 Health Services and Insurance Plan

    EIN 060691728 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Teamsters Union Local No 1150

    EIN 060776845 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Teel's Marsh Foundation

    EIN 066374698 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  91. Telehealth and Assisted Living Center Inc

    EIN 815406874 · Headquarters: Wethersfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Temple Sholom Inc

    EIN 060702619 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  93. Tennis for All Inc

    EIN 823794531 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  94. Terryville Plymouth Day Care Center

    EIN 222513683 · Headquarters: Terryville, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Terryville Retirement Community Corporation

    EIN 222596548 · Headquarters: TERRYVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Thames Area Citizen Advocacy Program Inc

    EIN 061279023 · Headquarters: Uncasville, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  97. Thames Ski Club Incorporated

    EIN 066088313 · Headquarters: New London, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Thames Valley Womens Tennis League

    EIN 825321239 · Headquarters: East Lyme, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  99. Thames Yacht Club Inc

    EIN 060836944 · Headquarters: NIANTIC, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Thamesville Athletic Club Inc

    EIN 060561035 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

First page and all pages