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. Guilford Scholarship Association Incorporated

    EIN 066067844 · Headquarters: GUILFORD, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Guilford Temple Association Inc

    EIN 237368198 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Guilford Volunteer Fire Department

    EIN 811237736 · Headquarters: Guilford, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Guilford Yacht Club Association Inc

    EIN 066049176 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Guilford Youth Basketball League

    EIN 061181763 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Guilford Youth Lacrosse Association Inc

    EIN 470960674 · Headquarters: GUILFORD, CT, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  7. Guilford Youth Mentoring Association Inc

    EIN 200421442 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Hand Help

    EIN 273940034 · Headquarters: Guilford, CT, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Heart 2 Heart

    EIN 203101212 · Headquarters: Guilford, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Hopechest Ct Inc

    EIN 881829402 · Headquarters: Guilford, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Insights for Rehabilitation Inc

    EIN 223889010 · Headquarters: Guilford, CT, US · Health Care · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  12. International Association of Fire Fighters

    EIN 300062430 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. International Association of Fire Fighters Ladies Auxiliary

    EIN 412258447 · Headquarters: Guilford, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  14. International Association of Lions Clubs

    EIN 066081972 · Headquarters: Guilford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  15. International Knee Dislocation Study Group Inc

    EIN 394768133 · Headquarters: GUILFORD, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Iteach Inc

    EIN 833570593 · Headquarters: Guilford, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. James Vick Foundation Inc

    EIN 824711896 · Headquarters: Guilford, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Jane D Weiss Family Foundation Inc

    EIN 134001066 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. Jastreboff Hearing Disorders Foundation

    EIN 753171883 · Headquarters: GUILFORD, CT, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Jmd Aviation Inc

    EIN 364907124 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Joann C Powers Memorial Golf Tournament

    EIN 830479868 · Headquarters: Guilford, CT, US · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  22. Joe & Cindy Goldberg Family Foundation Inc

    EIN 455388089 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  23. Jonathan Mcmahon Memorial Scholarship Fund

    EIN 820857550 · Headquarters: Guilford, CT, USA · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  24. Joseph Marziano Martorelli Foundation

    EIN 453655153 · Headquarters: GUILFORD, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  25. Khodadoust Eye Foundation Inc

    EIN 061601918 · Headquarters: GUILFORD, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2013 · Primary form: IRS Form 990-PF

  26. Kids Hugs Inc

    EIN 472930302 · Headquarters: Guilford, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  27. Knights of Columbus

    EIN 237541376 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Knownpreneurs Inc

    EIN 923563894 · Headquarters: Guilford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Kobe Henro Inc

    EIN 873787089 · Headquarters: Guilford, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Larche Connecticut Shoreline

    EIN 872307538 · Headquarters: Guilford, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. League of Women Voters of Connecticut Inc

    EIN 066077787 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Leaves a Human Service Institute Incorporated

    EIN 731694141 · Headquarters: Guilford, CT, US · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  33. Lifelinx Corporation

    EIN 010851113 · Headquarters: GUILFORD, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2020 · Primary form: IRS Form 990

  34. Little League Baseball Inc

    EIN 237322613 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. Maple Place Foundation

    EIN 134178390 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  36. Marilyn T Krom Foundation Corp

    EIN 473119013 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  37. Melissa Jones Elementary School Pto

    EIN 814753152 · Headquarters: GUILFORD, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Menunkatuck Audubon Society Inc

    EIN 061247422 · Headquarters: Guilford, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. MFUND Inc

    EIN 261560414 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  40. Middle East Crisis Committee Inc

    EIN 542131005 · Headquarters: Guilford, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Mj Petretto Foundation Inc

    EIN 271516798 · Headquarters: GUILFORD, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Moms Club

    EIN 352304568 · Headquarters: Guilford, CT, US · Human Services · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  43. Musical Art Society of Branford

    EIN 043265767 · Headquarters: GUILFORD, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Nami Shoreline

    EIN 352350755 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. National Faith Leaders Collaborative Inc

    EIN 880525196 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Rural Letter Carriers Association

    EIN 237235409 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  47. National Rural Letter Carriers' Association

    EIN 237235405 · Headquarters: Guilford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Netminders

    EIN 881854604 · Headquarters: GUILFORD, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. New England Institute Medical Research

    EIN 061628783 · Headquarters: Guilford, CT, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. New Haven County Farm Bureau Inc

    EIN 060669377 · Headquarters: Guilford, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. New Haven Middlesex Association of Realtors Foundation Inc

    EIN 831656642 · Headquarters: GUILFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  52. New Haven Middlesex Association of Realtors Inc

    EIN 471130802 · Headquarters: GUILFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. New Haven Oil & Energy Service Professionals Inc

    EIN 811157232 · Headquarters: GUILFORD, CT, USA · Employment · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  54. New Haven Sportsmans Club Inc

    EIN 061098230 · Headquarters: Guilford, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. North Guilford Nursery School Inc

    EIN 060791015 · Headquarters: GUILFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. North Guilford Volunteer Fire Co Inc

    EIN 066204945 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Northeast Stockdog Association

    EIN 061313254 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Nut Plains Cemetery Association of Guilford

    EIN 061301419 · Headquarters: GUILFORD, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Oasis Global Missions Association Inc

    EIN 463784187 · Headquarters: GUILFORD, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Order of Hermanns Sons Inc

    EIN 066040897 · Headquarters: Guilford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Order of Runeberg Lodge 205 New Haven

    EIN 237548187 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  62. Order of Runeberg Supreme Lodge

    EIN 910563434 · Headquarters: Guilford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  63. Our Community Heros Inc

    EIN 873664174 · Headquarters: GUILFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Parents Families and Friends of Lesbians and Gays Inc

    EIN 271675614 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  65. Paul Dostie Kare Foundation Inc

    EIN 872988633 · Headquarters: GUILFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  66. Poetreef

    EIN 825297505 · Headquarters: GUILFORD, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Project Music Heals Us Inc

    EIN 814264727 · Headquarters: GUILFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Ptsa Connecticut Congress

    EIN 352220157 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  69. Raccoon Crossing Rehabilitation Center Inc

    EIN 300552792 · Headquarters: Guilford, CT, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. 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

  71. Roots 4 Relief

    EIN 815241168 · Headquarters: Guilford, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Rothberg Institute Inc

    EIN 061634985 · Headquarters: GUILFORD, CT, USA · Medical Research · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  73. Royal Arch Masons of Connecticut

    EIN 237119357 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  74. Sachem's Head Yacht Club

    EIN 060520250 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Sarah Foundation Inc

    EIN 061281792 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Sarah Tuxis Residential Services In

    EIN 061297908 · Headquarters: GUILFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Scholarships for Literacy Inc

    EIN 260517774 · Headquarters: GUILFORD, CT, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  78. Shore Runners Inc

    EIN 842243359 · Headquarters: Guilford, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Shoreline Chamber of Commerce

    EIN 061196325 · Headquarters: GUILFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  80. Shoreline Greenway Trail Inc

    EIN 562338589 · Headquarters: GUILFORD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Shoreline Outdoor Education Center

    EIN 061074154 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  82. Shoreline Sharks Youth Hockey Inc

    EIN 262670622 · Headquarters: GUILFORD, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. Shoreline Theatrical Arts

    EIN 811520106 · Headquarters: GUILFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  84. Sino-american Network for Therapeutic Radiology and Oncology

    EIN 205865371 · Headquarters: GUILFORD, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  85. Songstrong Inc

    EIN 934002298 · Headquarters: Guilford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Sons of Hermann of the State of Connecticut

    EIN 066090781 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Sound Life Connections Inc

    EIN 923270297 · Headquarters: GUILFORD, CT, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Spanish Water Dog Club Incorporated

    EIN 202415570 · Headquarters: Guilford, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Starfishgirl Anti-stalking Campaign Inc

    EIN 205346241 · Headquarters: Guilford, CT, US · Crime & Legal Related · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  90. Starship Dance Theater and Company

    EIN 061402168 · Headquarters: Guilford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Swedish Educational Association of Connecticut Inc

    EIN 342020248 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Syd's Book Shack & Boutique

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

  93. The Bussmann Family Foundation

    EIN 061587076 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  94. The Calvanese Therapeutic Learning Foundation Inc

    EIN 510529536 · Headquarters: Guilford, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. The Chaney Family Foundation Inc

    EIN 203478218 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  96. The Community Nursery School Inc

    EIN 060709287 · Headquarters: Guilford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. The Connecticut Western Massachusetts Chapter of The

    EIN 472479704 · Headquarters: Guilford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. The Denali Foundation C/o Brierley Cadwell and Possidente

    EIN 471259734 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  99. The Guilford Foundation Inc

    EIN 510137132 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. The Guilford Keeping Society

    EIN 237266545 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

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