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 Juan Jacobo De Lara and Jonne Low De Lara Foundation Inc
EIN 061004121 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Justice Education Center Inc
EIN 060897199 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Kaman Foundation Inc
EIN 061386119 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Karlson Family Foundation
EIN 133762819 · Headquarters: TRUMBULL, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- The Katherine Forest Crafts Foundation Inc
EIN 222618186 · Headquarters: Mystic, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Kennedy Collective
EIN 060709295 · Headquarters: Trumbull, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The King Street Volunteer Fire Company Inc
EIN 223126408 · Headquarters: DANBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Knights of Columbus Home Association of Bethel Conn Inc
EIN 222542757 · Headquarters: Bethel, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Koch Ellis Fund C/o Charles Ellis Trustee
EIN 222505228 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Krantz 501 (C) (3) Trust C/o Christopher Krantz
EIN 222788865 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Kundalini Research Fdn Ltd
EIN 132677006 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Kurzrok Foundation Inc
EIN 061367091 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Laboiteaux - Sharp Family Foundation
EIN 311346390 · Headquarters: ESSEX, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Lapin Foundation
EIN 223200990 · Headquarters: Stamford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Lawrence a Bossidy Foundation
EIN 061188527 · Headquarters: RIDGEFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Leads Foundation C/o Colin Gershon Esq
EIN 060933954 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Learning Clinic
EIN 061023016 · Headquarters: BROOKLYN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Lehrman Institute
EIN 237218534 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Leir Foundation Inc
EIN 061466481 · Headquarters: RIDGEFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Lenore & Howard Klein Foundation Inc
EIN 133673818 · Headquarters: Greenwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Levi E Coe Library Association
EIN 066045521 · Headquarters: Middlefield, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Lfl Institute Inc
EIN 394183286 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Libby Holman Foundation Inc C/o Lloyd Clareman
EIN 116037769 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- The Licia & Mason Beekley Community Library Inc
EIN 222536042 · Headquarters: NEW HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Limpe Foundation
EIN 133639369 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Links Inc Milford Ct Chapter
EIN 061167530 · Headquarters: Milford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Lions Club of Tolland Inc
EIN 222474943 · Headquarters: Tolland, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Long Ridge School Inc
EIN 060688031 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Madison Beach Club Inc
EIN 060436500 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Manchester Ski Club Inc
EIN 222568684 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Martha and Hunter Grubb Foundation Inc
EIN 510201970 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Mary Elizabeth and Gordon B Mannweiler Foundation Inc
EIN 061221118 · Headquarters: BETHLEHEM, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Master's School
EIN 237016084 · Headquarters: WEST SIMSBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Mat Charitable Foundation Inc C/o William T Mccallum Cpa Pc
EIN 136991067 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Maximilian E and Marion O Hoffman Foundation Inc
EIN 222648036 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Mayer Family Foundation
EIN 133531984 · Headquarters: Greenwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Mead School for Human Development Inc
EIN 060869691 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Metro Ny Assn for Applied Psychology Co Nicole Keyser
EIN 237064378 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Mianus River Boat & Yacht Club Inc
EIN 061284766 · Headquarters: Cos Cob, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Middle Haddam Public Library Inc
EIN 060789488 · Headquarters: Middle Haddam, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Middlesex Club Inc
EIN 060792535 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Mike and Charlotte Delaney Foundation
EIN 133437923 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Milbrook Club Inc
EIN 060453148 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Milford Fine Arts Council Inc
EIN 237401211 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Milford Historical Society Incorporated
EIN 066358697 · Headquarters: Milford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Ministry of the Open Door Inc
EIN 061373799 · Headquarters: HARTFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Modern Ancestral Foundation Inc
EIN 395100661 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Monroe Newcomers & Neighbors Club Inc
EIN 061273090 · Headquarters: Monroe, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Morton & Dinah Danseyar Family Foundation Inc
EIN 061359689 · Headquarters: ENFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Mory's Association Inc
EIN 060460080 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Moskowitz Foundation Inc
EIN 222857092 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Nathan & Helen Kohler Foundation
EIN 136161880 · Headquarters: Old Lyme, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Neighbors and Newcomers of Westport
EIN 237191817 · Headquarters: Westport, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The New Britain Dental Society Incorporated
EIN 066041120 · Headquarters: BERLIN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The New Haven Guardians
EIN 394219559 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The New Haven Kiwanis Club Foundation Inc
EIN 223014869 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The New Haven Regional Leadership Council Inc
EIN 061005809 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The New Haven Scholarship Fund Inc
EIN 066049938 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The New Haven Society of Model Engineers Incorporated
EIN 066068212 · Headquarters: Meriden, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The New Hope Fire Company
EIN 060667209 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The New London and Norwich Bldg Trades Council and Vicinity
EIN 237105346 · Headquarters: MERIDEN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The New London Community Meal Center Inc
EIN 222768679 · Headquarters: NEW LONDON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The New Milford Chamber of Commerce
EIN 060790947 · Headquarters: NEW MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Nirenberg Foundation Inc C/o First Merchants Group
EIN 223059287 · Headquarters: EAST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Noroton Fire Department Incorporated
EIN 222667419 · Headquarters: Darien, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Northeastern Connecticut Community Development Corporation Inc
EIN 060903918 · Headquarters: PLAINFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Norwalk Youth Symphony Inc
EIN 066070039 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The O'herron Family Foundation
EIN 133244207 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Oaklawn Foundationinc
EIN 136127896 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Obp Community Fund Inc
EIN 464898540 · Headquarters: STAMFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Ohnell Family Foundation
EIN 223219022 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Olcott & Lucy Smith Foundation Inc
EIN 066064116 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Old Church Cemetery Association of South Glastonbury Conn
EIN 066049208 · Headquarters: S GLASTONBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Old Newgate Coon Club Inc
EIN 060601138 · Headquarters: NORFOLK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Ossipee Club of Wolfeboro Neck Inc
EIN 061814204 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Pachaug Outdoor Club Inc
EIN 061083310 · Headquarters: Griswold, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Patrick and Catherine Weldon Donaghue Medical Research Foundation
EIN 066348275 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Patterson Club Inc
EIN 060614953 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Paugusset Club Incorporated
EIN 060761075 · Headquarters: Orange, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Perrin Family Foundation C/o Andersen Tax Llc
EIN 223309886 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- The Perrot Memorial Library Associa of Old Greenwichinc
EIN 061012967 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Peter Savitz Foundation
EIN 133748074 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Phi Gamma Delta House Assoc Gettysburg
EIN 230967743 · Headquarters: Sandy Hook, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Pine Orchard Yacht and Country Club Inc
EIN 060755218 · Headquarters: PINE ORCHARD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Power of a Dream Foundation
EIN 851970241 · Headquarters: Bethel, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Pratt & Whitney Aircraft Club Inc
EIN 060570970 · Headquarters: East Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Preschool at the Second Congregational Church
EIN 261522371 · Headquarters: Greenwich, CT, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Preventive Medicine Center
EIN 061063651 · Headquarters: HARTFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Proctor Foundation
EIN 066050916 · Headquarters: TRUMBULL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Pryor Foundation C/o Esther A Pryor
EIN 386056108 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Public Library of New London
EIN 060662170 · Headquarters: New London, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Quentin Q Williams Foundation I Ncorporated
EIN 412844439 · Headquarters: Middletown, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Quinnatisset Country Club Inc
EIN 060503167 · Headquarters: Thompson, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Race Brook Country Club Inc
EIN 060503510 · Headquarters: ORANGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Ray School Corporation
EIN 237073970 · Headquarters: EAST HADDAM, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Resource Foundation Inc
EIN 222870501 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Riddle Trust C/o Avon Old Farms School
EIN 066074707 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Ridgefield Chorale
EIN 060953077 · Headquarters: RIDGEFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Ridgewood Country Club Incorporated
EIN 060518390 · Headquarters: DANBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The River View Cemetery Inc
EIN 066038777 · Headquarters: Essex, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990