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
- The Daycroft School Foundation Inc
EIN 237127046 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Denise D’Ascenzo Foundation
EIN 844206794 · Headquarters: Branford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Denison Society Inc
EIN 066044693 · Headquarters: MYSTIC, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Diaper Bank of Connecticut Inc
EIN 201179912 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Diaspora Inc
EIN 831154182 · Headquarters: GROTON, CT, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- The Diebold Foundation Inc
EIN 311681649 · Headquarters: ROXBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Domino Family Foundation
EIN 223696728 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- The Dorsky Foundation Inc
EIN 136121016 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- The Early Family Scholar Athlete Prize
EIN 223222110 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The East Avon Cemetery Association Inc
EIN 066211942 · Headquarters: AVON, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The East End Community Club Inc
EIN 061205883 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The East Haven Stoners Inc C/o Pat Mullen Treasurer
EIN 223316081 · Headquarters: EAST HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Echlin Foundation
EIN 066037282 · Headquarters: BRANFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Echo Hose Hook and Ladder Ambulance Corps Inc
EIN 066040426 · Headquarters: SHELTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Edith S Wheeler Trust C/o John Chiota Esq
EIN 066386858 · Headquarters: TRUMBULL, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Edward E Hood Jr Foundation
EIN 066304421 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Edward L Mabry Fund Ima Account Co
EIN 586151884 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Eilyn Strong Project Incorporated
EIN 932165962 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Electric Boat Management Association
EIN 061052293 · Headquarters: Groton, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Elihu Club Inc
EIN 060665165 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Elinor Patterson Baker Foundation
EIN 066276403 · Headquarters: Greenwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Ellen and Gary Davis Foundation
EIN 061357318 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Ellen Jeanne Goldfarb Memorial Charitable Trust
EIN 066371228 · Headquarters: FARMINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Emily Hall Tremaine Foundation Inc
EIN 222533743 · Headquarters: TOLLAND, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Enfield Community Development Corporation Inc
EIN 222667281 · Headquarters: Enfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Enfield Historical Society Inc
EIN 066081391 · Headquarters: ENFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The English Institute Inc
EIN 066071639 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Eugene Atwood Fund
EIN 066044477 · Headquarters: STONINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Exceptional Sidekick Inc
EIN 811196868 · Headquarters: NEWTOWN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Fa Bartlett Tree Expert Company
EIN 061001544 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Fairfield Bridgeport Eruv Inc
EIN 061198639 · Headquarters: BRIDGEPORT, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Family Center Inc
EIN 060653192 · Headquarters: Bristol, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Family of the Sons and Daughters of Mary Inc
EIN 752183582 · Headquarters: BRISTOL, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Farms Country Club Incorporated
EIN 060759939 · Headquarters: WALLINGFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Fb Heron Foundation
EIN 133647019 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Fellowcraft Club of Stamford
EIN 061066722 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Field Club of Greenwich Incorporated
EIN 060342220 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Finnish American Heritage Society Inc
EIN 222984648 · Headquarters: Canterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Foundation for the Promotion of Evangelizing Catechesis Inc
EIN 881490762 · Headquarters: Bridgeport, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Foundation of the Greater New Haven Chamber of Commerce Inc
EIN 061142015 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Foundation School Inc
EIN 060813498 · Headquarters: ORANGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Fred C Gloeckner Foundation Inc
EIN 136124190 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Friends of Hillside Cemetery an D Arboretum Inc
EIN 412355251 · Headquarters: Wilton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Friends of the Bristol Senior Center Inc
EIN 061157845 · Headquarters: Bristol, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Friends of the Canton Public Library Inc
EIN 061009848 · Headquarters: Canton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Friends of the Russell Library
EIN 222624231 · Headquarters: Middletown, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Frontline Foundation
EIN 933771671 · Headquarters: STAMFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Gardner Bulkeley Cemetary Association Incorporated
EIN 066053085 · Headquarters: BOZRAH, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The George and Frances Armour Foundation Inc
EIN 136155619 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Gere Foundation
EIN 954305828 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Gibbons Foundation
EIN 061188483 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Goodnow Fund
EIN 066395384 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Gorman Foundation Inc C/o Ronald Molloy
EIN 223105804 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Graduate Club Association
EIN 060367660 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Graham Foundation Inc
EIN 061337821 · Headquarters: FARMINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Great Quinnehtukqut Company of Artificers and Traders
EIN 223236733 · Headquarters: Meriden, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Greater New Haven Chamber of Commerce Inc
EIN 060468900 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Greater New Milford Board of Realtors Inc
EIN 060972371 · Headquarters: New Milford, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Greater Valley Chamber of Commerce
EIN 060793093 · Headquarters: SHELTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Greenwich Jewish Study Group Inc
EIN 060924899 · Headquarters: Old Greenwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- The Greenwich Rotary Foundation
EIN 066082823 · Headquarters: COS COB, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Griffis Foundation Inc
EIN 135678764 · Headquarters: LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- 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 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 Gusti Brandt Foundation
EIN 136185337 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · 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 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 Harry Partch Commission Inc
EIN 861986993 · Headquarters: Avon, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 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 Dispensary
EIN 060646665 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · 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 Hearts Foundation Inc
EIN 473862893 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- 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 Herbert Ferber Foundation Inc
EIN 132923712 · Headquarters: Norwalk, CT, USA · Unknown & Unclassified · 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 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 Human Resource Association of Central Connecticut
EIN 061293531 · Headquarters: BERLIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Hunter Grubb Foundation Inc
EIN 596202749 · Headquarters: OLD LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-PF
- The Hynes Foundation Inc C/o Pkf O'connor Davies Advisory Llc
EIN 472515717 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Indian Harbor Yacht Club Incorporated
EIN 060400220 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Initiative for Public Interest Law at Yale Inc
EIN 061074329 · Headquarters: New Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ
- The Innis Arden Golf Club Inc
EIN 060400660 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Institute Library
EIN 060646756 · Headquarters: New Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Isidore Stern Foundation
EIN 136113256 · Headquarters: Ridgefield, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Italian Center of Stamford Inc
EIN 060646684 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Ivy Bound Education Foundation Inc
EIN 394992124 · Headquarters: Farmington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The James Mcmanus Fund of the Htfd Dental Society Inc
EIN 066060434 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Jane Coffin Childs Memorial Fund for Medical Research
EIN 066034840 · Headquarters: New Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Jasper Home Foundation Inc
EIN 825246041 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF
- The Jerrold & Sally Fine Foundation Inc
EIN 222774146 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Jesse Bayer Foundation C/o Robert Bayer
EIN 133369906 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Jewish Federation of Greater New Haven Inc
EIN 060647025 · Headquarters: WOODBRIDGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Jewish Historical Society of Fairfield County
EIN 222573763 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Jewish Historical Society of Greater New Haven
EIN 060941787 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The John G Martin Foundation
EIN 066042495 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF