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
- The Greenwich Library
EIN 066002281 · Headquarters: GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Greenwich Performing Arts Studio LLC
EIN 261933174 · Headquarters: Stamford, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- The Greenwich Rotary Foundation
EIN 066082823 · Headquarters: COS COB, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Greenwich Tree Conservancy Inc
EIN 208181832 · Headquarters: GREENWICH, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Greenwich Water Club Inc
EIN 201379604 · Headquarters: Cos Cob, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Grey Street Foundation Inc
EIN 200921905 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Grid Iron Club
EIN 844364834 · Headquarters: COVENTRY, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Griffis Foundation Inc
EIN 135678764 · Headquarters: LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Groove Fund Incorporated
EIN 522107162 · Headquarters: Hartford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Grossman Family Foundation
EIN 263919092 · Headquarters: COS COB, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Groton Soccer Club Inc
EIN 274082537 · Headquarters: GROTON, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- THE GROUNDS INC Dba The Underground
EIN 205932751 · Headquarters: West Hartford, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Grove Beach Association Incorporated
EIN 222760736 · Headquarters: Wolcott, CT, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- The Grove Cemetery Association Inc
EIN 066047658 · Headquarters: Windsor Locks, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Gruber Foundation
EIN 451540594 · Headquarters: New Haven, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Gryphon Fund
EIN 223199039 · Headquarters: WEST SIMSBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Guilford Foundation Inc
EIN 510137132 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Guilford Keeping Society
EIN 237266545 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Gupta Family Foundation
EIN 364139351 · Headquarters: WESTPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Gusti Brandt Foundation
EIN 136185337 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Gxila Foundation Trust
EIN 926268958 · Headquarters: FARMINGTON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Haddam Scholarship Fund Inc
EIN 061307736 · Headquarters: Higganum, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Hadlyme Public Hall Association Inc
EIN 066048655 · Headquarters: HADLYME, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Hagani Foundation Inc
EIN 320101650 · Headquarters: Woodbridge, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Hall Charitable Trust
EIN 137129718 · Headquarters: WILTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Hall Foundation Inc C/o Christine Stetson
EIN 066026022 · Headquarters: WILLINGTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Hallingby Family Foundation Inc
EIN 061516271 · Headquarters: SHARON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Hampton Fire Company
EIN 061383136 · Headquarters: HAMPTON, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Handal Foundation Inc
EIN 133162054 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF
- The Hanover Cemetery Association Inc
EIN 061208233 · Headquarters: Versailles, CT, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- The Harle and Stephen Osman Charitable F
EIN 061413907 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- The Harman Family Foundation Co Richard Harman
EIN 066086169 · Headquarters: Westport, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Harold & Phyllis Van Horn Foundation C/o John F Kearns Atty
EIN 061592738 · Headquarters: WEST HARTFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Harold Leever Regional Cancer Center
EIN 061548409 · Headquarters: Waterbury, CT, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Harold W McGraw Jr Family Foundation Inc C/o Cummings & Lockwood
EIN 273418504 · Headquarters: Stamford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Harp Guitar Foundation
EIN 264211583 · Headquarters: MIDDLEFIELD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Harpswell Foundation
EIN 043474498 · Headquarters: SHARON, CT, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Harry B Brownson Country Club Inc
EIN 060755521 · Headquarters: SHELTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Harry E Goldfarb Family Foundation Inc
EIN 061025623 · Headquarters: FARMINGTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF
- The Harry Partch Commission Inc
EIN 861986993 · Headquarters: Avon, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Harry Ruffin Jr Unit 0206 American Legion Auxiliary
EIN 800501869 · Headquarters: Middletown, CT, US · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- The Hartford Bridge Club Incorporated
EIN 830451705 · Headquarters: West Hartford, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Hartford Chamber of Commerce Incorporated
EIN 060383300 · Headquarters: Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Hartford Club
EIN 060383360 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Hartford County Bar Association Inc
EIN 060944388 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Hartford County Bar Foundation Inc
EIN 311681540 · Headquarters: Hartford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Hartford Dispensary
EIN 060646665 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Hartford Dispensary Endowment Corporation
EIN 222948682 · Headquarters: MANCHESTER, CT, USA · Health Care · Latest available filing year: 2016 · Primary form: IRS Form 990
- The Hartford Guides Inc
EIN 061320786 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Hastings Foundation Inc
EIN 208162714 · Headquarters: Darien, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Hatch Hospital Corporation
EIN 066076412 · Headquarters: NORWICH, CT, USA · Health Care · Latest available filing year: 2018 · Primary form: IRS Form 990
- The Hawleyville Volunteer Fire Company No 1 Inc
EIN 205398781 · Headquarters: NEWTOWN, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Hayes Foundation
EIN 061636828 · Headquarters: NEW HAVEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Hayward Foundation Inc C/o Henry Bryant
EIN 061469075 · Headquarters: Riverside, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF
- The Hazel Dell Foundation Inc
EIN 136161744 · Headquarters: WESTPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Healthcare Auxiliary for the Tri-state Region Inc
EIN 043632758 · Headquarters: SHARON, CT, USA · Health Care · Latest available filing year: 2015 · Primary form: IRS Form 990
- The Healthcare Navigation Project Inc
EIN 881891104 · Headquarters: Milford, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Hearthstone Foundation Inc
EIN 352834306 · Headquarters: BRANFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Hearts Foundation Inc
EIN 473862893 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- The Heineman-Russell Family Foundation
EIN 270961125 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Helen and Sidney Witty Foundation Inc
EIN 200180760 · Headquarters: EAST GRANBY, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Helen I Moorehead Laurencin Md Foundation
EIN 300152967 · Headquarters: AVON, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Helping Hand Foundation
EIN 137409533 · Headquarters: RIVERSIDE, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Helping Heroes Foundation Inc Formerly Thomas Keenan Foundation Inc
EIN 203470263 · Headquarters: WESTPORT, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- The Henry & Birdie Cohen Fund
EIN 061620449 · Headquarters: RIVERSIDE, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Henry E & Nancy Horton Bartels Trust F/b/o Quinnipiac University
EIN 061385464 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990
- The Henry Gustav Floren Foundation
EIN 066503521 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Henry Mcbride Foundation
EIN 200169723 · Headquarters: NORWALK, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Herb Chambers Charitable Foundation
EIN 454069504 · Headquarters: GLASTONBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Herbert Ferber Foundation Inc
EIN 132923712 · Headquarters: Norwalk, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Hidden Treasure Within Inc
EIN 452276544 · Headquarters: trumbull, CT, US · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- The Higgins Family Foundation
EIN 137201038 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The High Lane Club Inc
EIN 060389616 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- The High School Scholarship Foundation of Fairfield
EIN 061273415 · Headquarters: FAIRFIELD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Highland Park Families Foundation
EIN 061604496 · Headquarters: MANCHESTER, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Hilbert & Shirley Hendel Foundation U/a/d 6/15/06
EIN 205094134 · Headquarters: NORWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Hill House Inc
EIN 060989007 · Headquarters: RIVERSIDE, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Hill Museum Corp
EIN 900661673 · Headquarters: NEW HAVEN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ
- The Historic Sharon Burying Ground Inc
EIN 203359335 · Headquarters: SHARON, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Hobart D and Nancy Vaughan Van Deusen Charitable Trust
EIN 320281707 · Headquarters: LAKEVILLE, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- The Hole in the Wall Foundation Inc
EIN 203865042 · Headquarters: westport, CT, USA · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990
- The Holland Family Foundation Corp C/o Deleo & Company
EIN 204078344 · Headquarters: NEW MILFORD, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Holy Child Program
EIN 800240094 · Headquarters: Meriden, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Holy Orthodox Order of Saint George the Great Martyr Inc
EIN 352579048 · Headquarters: MANCHESTER, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Home and School Association of Southbury Training School
EIN 066049504 · Headquarters: SOUTHBURY, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Hometown Foundation
EIN 200847683 · Headquarters: Cheshire, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Horace Bushnell Memorial Hall
EIN 060662112 · Headquarters: HARTFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Horrigan Family Foundation C/o Walter Berlingo and Company
EIN 261466660 · Headquarters: DARIEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Horse-Drawn Carriage and Sleigh Museum of New England Inc
EIN 311613002 · Headquarters: East Haddam, CT, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- The Horsemen's Distress Fund Inc
EIN 202442221 · Headquarters: BRIDGEWATER, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Hospital Bed Project Inc
EIN 842232167 · Headquarters: Amston, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Hospital of Central Connecticut
EIN 060646768 · Headquarters: Southington, CT, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Hotchkiss School
EIN 060647018 · Headquarters: LAKEVILLE, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The House of Darla Inc
EIN 920343419 · Headquarters: Stratford, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Housing Collective Inc
EIN 205529890 · Headquarters: BRIDGEPORT, CT, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Hoyt Fund C/o Marshall M Green
EIN 137125482 · Headquarters: RIDGEFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Hscc Stone Family Foundation
EIN 920613443 · Headquarters: NORWALK, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Ht40 Foundation Inc
EIN 921849919 · Headquarters: DARIEN, CT, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Hubbell Difference Foundation Inc
EIN 453639526 · Headquarters: LITCHFIELD, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Human Potential LAB Inc
EIN 991643026 · Headquarters: New Preston, CT, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990