Nonprofits in Guilford, Connecticut

Nonprofits in Guilford, Connecticut. Browse 231 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. 446 Hammonasset Chapter of Trout Unlimited

    EIN 521492102 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. 78 Boston Company

    EIN 883148962 · Headquarters: GUILFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. A W Cox Pto

    EIN 463120934 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. A'lani Kailani Blue Lotus White Star Fdtn C/o Andrea V Borden

    EIN 356894268 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  5. Addiction Recovery Resources Corp

    EIN 471162023 · Headquarters: GUILFORD, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  6. Alden Charitable Foundation Inc

    EIN 831120873 · Headquarters: GUILFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Alder Brook Cemetery Association

    EIN 060624359 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Alex Inc

    EIN 921864039 · Headquarters: GUILFORD, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. All Boobs Matter Inc

    EIN 992605116 · Headquarters: Guilford, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Allasso Foundation Inc

    EIN 010553797 · Headquarters: Guilford, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  11. Almazov Foundation of North America Inc

    EIN 205836293 · Headquarters: Guilford, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  12. Amateur Athletic Union of the United States Inc

    EIN 813979413 · Headquarters: GUILFORD, CT, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  13. American Legion

    EIN 061572882 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Legion Auxiliary

    EIN 061364046 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Ancient Free & Accepted Masons of Connecticut

    EIN 237107862 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  16. Archway Inc

    EIN 061520154 · Headquarters: GUILFORD, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2016 · Primary form: IRS Form 990

  17. Autism Anchor

    EIN 811291445 · Headquarters: GUILFORD, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  18. Autoimmune Registry Inc

    EIN 811688265 · Headquarters: Guilford, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Bailey-desmet Foundation

    EIN 920437088 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  20. Baldwin Middle School Pto

    EIN 844453534 · Headquarters: GUILFORD, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Barbara Pellegrino Family Charitable Foundation

    EIN 465493645 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  22. Because It S Right Inc

    EIN 821696150 · Headquarters: Guilford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Benincasa Community Inc

    EIN 812366237 · Headquarters: GUILFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Bennett Family Foundation Inc

    EIN 472646653 · Headquarters: Guilford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  25. Blue Moon Raptors Inc

    EIN 832451765 · Headquarters: Guilford, CT, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Branford Alps Farmers Market

    EIN 472930174 · Headquarters: GUILFORD, CT, USA · Food, Agriculture & Nutrition · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  27. Branford Public Schools Scholarship Fund

    EIN 066038879 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  28. Brotherhood of Railroad Signalmen

    EIN 046005011 · Headquarters: Guilford, CT, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  29. Calvin Leete Parent Teacher Organization

    EIN 455378100 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Carol L Sirot Foundation

    EIN 061600346 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  31. Cindy Lynn Sherwin Memorialfoundation

    EIN 260442079 · Headquarters: Guilford, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  32. Committee to Save Guilford Shoreline Inc

    EIN 311623698 · Headquarters: Guilford, CT, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  33. Connecticut Ccim Chapter Inc C/o New Haven Middlesex Asso of Realtor

    EIN 061243232 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Connecticut Council for Humane

    EIN 510188130 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Connecticut Council of the Blind

    EIN 061538947 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Connecticut Drama Association Inc

    EIN 061587629 · Headquarters: Guilford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Connecticut Education Association

    EIN 237107197 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Connecticut Experiential Learning Center Inc

    EIN 463252132 · Headquarters: GUILFORD, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Connecticut Rheumatology Association Inc

    EIN 432077547 · Headquarters: GUILFORD, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. Connecticut State Fraternal Order of Police Inc

    EIN 061422109 · Headquarters: Guilford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Cycle Haven Foundation Inc

    EIN 823660834 · Headquarters: GUILFORD, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Diamond Club

    EIN 870692316 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  43. Discover Your Path Inc

    EIN 853955944 · Headquarters: GUILFORD, CT, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Doctors United for Ukraine Co

    EIN 881488412 · Headquarters: Guilford, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Dorothy Whitfield Historic Society Inc

    EIN 066046400 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Driscoll Cares Inc

    EIN 813766720 · Headquarters: GUILFORD, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Dudley Foundation Inc

    EIN 061409967 · Headquarters: GUILFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Eagle Hose Company No 2 Inc

    EIN 811741081 · Headquarters: Guilford, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Edelweiss Lodge No 31 Order of Hermann Sons of the State of Conne

    EIN 332076967 · Headquarters: Guilford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Edward a Norton Vfw Post 7666

    EIN 066051442 · Headquarters: GUILFORD, CT, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  51. Embrace Our Elders Inc

    EIN 473037565 · Headquarters: Guilford, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  52. Ethan Miller Song Foundation Inc

    EIN 824673514 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Faulkners Light Brigade Inc

    EIN 205313638 · Headquarters: Guilford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Fc Spencer Hook & Ladder Company

    EIN 833226974 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  55. Federated Garden Clubs of Connecticut Inc

    EIN 066046786 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Federated Garden Clubs of Connecticut Inc

    EIN 066080558 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Flore Foundation Inc

    EIN 821654951 · Headquarters: Guilford, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. For Youth Inc

    EIN 061600705 · Headquarters: Guilford, CT, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  59. Foundations of Life Inc

    EIN 061530041 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  60. Franciscan Family Apostolate Inc

    EIN 222778243 · Headquarters: Guilford, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Friends of the Guilford Free Library

    EIN 061293236 · Headquarters: GUILFORD, CT, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  62. Garrett Memorial Chapel Trust

    EIN 160759023 · Headquarters: Guilford, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Gazelle International Inc

    EIN 475625971 · Headquarters: Guilford, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. George W Manstan Jr Scholarship Trust

    EIN 061038742 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Ghs Music Boosters Inc

    EIN 463556965 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Ghs Swim and Dive

    EIN 994914505 · Headquarters: Guilford, CT, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  67. Global Health Education Foundation

    EIN 270200196 · Headquarters: Guilford, CT, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  68. Government Finance Officers Association of Connecticut Inc

    EIN 061195928 · Headquarters: Guilford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Greater Education Council of Connecticut

    EIN 335062652 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Green Planet Company

    EIN 825066584 · Headquarters: GUILFORD, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Growing Communities Inc

    EIN 271233208 · Headquarters: Guilford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  72. Guildford High School Theater Arts Parents Support Group

    EIN 061328842 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Guilford a Better Chance Inc Guilford a Better Chance Inc

    EIN 237417687 · Headquarters: GUILFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Guilford Agricultural Society Inc Guilford Agricultural Society Inc

    EIN 060913331 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  75. Guilford Art Center

    EIN 066089567 · Headquarters: Guilford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Guilford Association of Educational Support Services Inc

    EIN 320240596 · Headquarters: GUILFORD, CT, USA · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  77. Guilford Boys Hockey Boosters Inc

    EIN 934264411 · Headquarters: GUILFORD, CT, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Guilford Center for Children Inc

    EIN 060876677 · Headquarters: GUILFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Guilford Civic Women Inc

    EIN 060955046 · Headquarters: GUILFORD, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  80. Guilford Community Fund

    EIN 066069645 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Guilford Community Garden Hub Inc

    EIN 465298239 · Headquarters: Guilford, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Guilford Community Television

    EIN 061349846 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  83. Guilford Cubs

    EIN 995029375 · Headquarters: Guilford, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Guilford Day Inc

    EIN 872566708 · Headquarters: Guilford, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Guilford Dugout Club

    EIN 882875850 · Headquarters: guilford, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Guilford Employees Association

    EIN 061530498 · Headquarters: Guilford, CT, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Guilford Free Public Library Asso Inc

    EIN 066034298 · Headquarters: Guilford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Guilford Fund for Education Inc

    EIN 208879908 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  89. Guilford High School Project Graduation 2014

    EIN 464808326 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Guilford Interfaith Housing Corp

    EIN 237242242 · Headquarters: Guilford, CT, US · Housing & Shelter · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  91. Guilford Interfaith Ministries Inc Dba Guilford Interfaith Volunteers

    EIN 061139541 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Guilford Lakes Pto Inc

    EIN 320304452 · Headquarters: GUILFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  93. Guilford Land Conservation Trust Inc

    EIN 060851698 · Headquarters: Guilford, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. Guilford Performing Arts Festival

    EIN 824648770 · Headquarters: GUILFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. Guilford Police Benevolent Association

    EIN 061435724 · Headquarters: Guilford, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Guilford Police Union Local #356 Afscme Afl-cio

    EIN 061307522 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Guilford Preservation Alliance Inc

    EIN 061033599 · Headquarters: GUILFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Guilford Rescue Squad Company 5 Incorporated

    EIN 811564764 · Headquarters: Guilford, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Guilford Rotary Club Memorial Educational Fund Inc

    EIN 237050685 · Headquarters: GUILFORD, CT, US · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  100. Guilford Rowing Inc

    EIN 202542719 · Headquarters: GUILFORD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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