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
- Northwest Community Cooperative Inc
EIN 814105296 · Headquarters: Colebrook, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Northwest Connecticut Education Association
EIN 061308494 · Headquarters: Sharon, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Northwest Connecticut Emergency Medical Services Council Inc Rte 1
EIN 061069277 · Headquarters: Wolcott, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Northwest Ct Public Safety Comm Ctr
EIN 061065828 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Northwest Hills Credit Union Inc
EIN 066041088 · Headquarters: TORRINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Northwest Regional Workforce Investment Board Inc
EIN 061623757 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Northwestern Community College Foundation and Regional Advisory Council Inc
EIN 061044425 · Headquarters: WINSTED, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Northwestern Connecticut Youth Hockey and Skating Association Inc
EIN 222531618 · Headquarters: NEW MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Northwestern Ct Cyber Lions Club
EIN 843528918 · Headquarters: Riverton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Northwestern Veterans Club Inc
EIN 060616898 · Headquarters: New Britain, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Norwalk Academy of Multilingual Students Inc
EIN 993878388 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Norwalk Association of School Administrators Inc
EIN 061445199 · Headquarters: Norwalk, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Norwalk Boat Club Inc
EIN 060474960 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Norwalk Federation of Teachers Local # 1723 Aft / Afl-cio
EIN 066107600 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Norwalk Hospital Credit Union
EIN 060940464 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Norwalk Karting Association Inc
EIN 061121002 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Norwalk Kiwanis Foundation Inc
EIN 223216387 · Headquarters: NORWALK, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Norwalk Police Fund Incorporated
EIN 066042689 · Headquarters: Norwalk, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Norwalk Senior Center Inc
EIN 237121169 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Norwalk Sister City Project Inc
EIN 222989386 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Norwalk Ski Club Incorporated
EIN 061049978 · Headquarters: Easton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Norwalk Telephone Employees Community Service Fund
EIN 066080966 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Norwalk Yacht Club
EIN 060475415 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Norwich Arts Center Inc
EIN 061205398 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Norwich Cemetery Association
EIN 060475470 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Norwich Golf Club Association Inc
EIN 060976718 · Headquarters: Norwich, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Norwich Hebrew Benevolent Association
EIN 510138922 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Norwich Heritage Trust Inc
EIN 061031625 · Headquarters: Norwich, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Norwich Patrolmens Benevolent Association Educational Trust
EIN 066042810 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ
- Norwich Semiseptcentennial Inc
EIN 270259849 · Headquarters: Norwich, CT, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Norwich Ski Club
EIN 223295180 · Headquarters: Gales Ferry, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nova Scotia Duck Tolling Retriever Club - NE
EIN 921562083 · Headquarters: Colchester, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Nuclear Information and Records Management Association Inc
EIN 112561581 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Nutmeg Chapter of the American Business Womens Association
EIN 800335211 · Headquarters: WOODBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Nutmeg Division Northeastern Region National Model Railroad Assn Inc
EIN 061597308 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nutmeg German Shorthaired Pointer Club Inc
EIN 223116287 · Headquarters: COLCHESTER, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Nutmeg Group of Cpa Firms
EIN 222870369 · Headquarters: BRANFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nutmeg Hamfest Alliance Inc
EIN 061517822 · Headquarters: Meriden, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nutmeg Miata Club Inc
EIN 800789291 · Headquarters: Tolland, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nutmeg R C Flyers Inc
EIN 611639425 · Headquarters: New Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nutmeg Sportsmens Club Inc
EIN 061309530 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Nutmeg State African Violet Society
EIN 753259340 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Nutmeg State Financial Credit Union
EIN 060655039 · Headquarters: ROCKY HILL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nutmeg Volunteer Jr Ancient Fife & Drum Corps Inc
EIN 222804844 · Headquarters: Groton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nuvance Health Medical Practice CT Inc
EIN 061137531 · Headquarters: Danbury, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Ny Ct Association of Tax Professionals Inc
EIN 133415450 · Headquarters: DANBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- O'connell Family Foundation Inc C/o Daniel S O'connell
EIN 133745912 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- O'meara Foundation Inc
EIN 066034580 · Headquarters: WETHERSFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Oak Cliff Cemetery C/o Barbara Lynes Treasurer
EIN 060476630 · Headquarters: SEYMOUR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oak Grove Montessori Elementary School Inc
EIN 061045034 · Headquarters: Mansfield Center, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oak Hill Cemetery Association
EIN 060717300 · Headquarters: SOUTHINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oak Hills Mens Golf Association Inc
EIN 223108754 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Oak Hills Womens Golf Association
EIN 061058234 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oak Lawn Cemetery Association
EIN 060688985 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oakwood Soccer Club Inc
EIN 223029731 · Headquarters: GLASTONBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Odd Fellows Home of Connecticut Inc
EIN 060646771 · Headquarters: GROTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Old Black Point Association Inc
EIN 060625729 · Headquarters: Niantic, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Faithful Antique Fire Engine Company Inc
EIN 041007620 · Headquarters: New Canaan, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Old Greenwich School PTA
EIN 066074547 · Headquarters: Old Greenwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Greenwich Yacht Club
EIN 510148202 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Old Guard Inc
EIN 066086613 · Headquarters: Bloomfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Old Hemlock Cemetery
EIN 066056557 · Headquarters: Colebrook, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Old Lyme Beach Club Incorporated
EIN 060478667 · Headquarters: East Lyme, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Lyme Cemetery Association Inc
EIN 060478670 · Headquarters: OLD LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Lyme Childrens Learning Center
EIN 222808283 · Headquarters: Old Lyme, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Lyme Country Club Inc
EIN 060478680 · Headquarters: OLD LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Lyme South End Volunteer Ambulance Association Inc
EIN 222677959 · Headquarters: OLD LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Lyme Town Band
EIN 223216992 · Headquarters: MOODUS, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Old Salt Works Road Beach Association Inc
EIN 932005891 · Headquarters: Westbrook, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Old Saybrook Chamber of Commerce Inc
EIN 060846200 · Headquarters: OLD SAYBROOK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Saybrook Fire Company No1 Inc
EIN 061009393 · Headquarters: OLD SAYBROOK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Saybrook Historical Society
EIN 061013438 · Headquarters: OLD SAYBROOK, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Old Saybrook Lions Club Incorporated
EIN 066068999 · Headquarters: OLD SAYBROOK, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Old Saybrook Senior Housing Inc
EIN 061009394 · Headquarters: OLD SAYBROOK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old School Bible Believers Baptist Church
EIN 850907755 · Headquarters: Vernon, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Old School Social Club Inc
EIN 204523707 · Headquarters: Wolcott, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Old Stone Bridge Property Owners' Association Inc
EIN 061031492 · Headquarters: COS COB, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Old Timers Rod and Gun Club Incorporated
EIN 136734586 · Headquarters: Brookfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Old Woodbury Historical Society Incorporated
EIN 066077333 · Headquarters: WOODBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oliver Wolcott Library Inc
EIN 060709304 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Om Shanti Om Incorporated
EIN 332788868 · Headquarters: Bridgeport, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Omega Psi Phi Fraternity
EIN 066087944 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Once Incarcerated Once Inc
EIN 842808903 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- One Luv Give Back Inc
EIN 933968984 · Headquarters: new haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- One Room Wonders Inc
EIN 851277919 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Onesource for Risk Readiness Inc
EIN 834644767 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Opeiu Local # 106
EIN 066068934 · Headquarters: GROTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Open Hearts Open Doors Inc
EIN 141997022 · Headquarters: Riverside, CT, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Opportunities Industrialization Center of New Britain Inc
EIN 060876897 · Headquarters: NEW BRITAIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Opportunities Industrialization Center of New London County Inc
EIN 237066023 · Headquarters: NEW LONDON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Opportunity House Inc
EIN 061051678 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Optimum Stem Education and Research Organization Inc
EIN 862973969 · Headquarters: NEWINGTON, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Orange Cemetery Association
EIN 060940394 · Headquarters: ORANGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orange Community Nursery School Inc
EIN 066009856 · Headquarters: ORANGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Orange Hall Corp
EIN 066057744 · Headquarters: Manchester, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Orange Historical Society Inc
EIN 510192522 · Headquarters: Orange, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orange Land Trust Inc
EIN 237067509 · Headquarters: Orange, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orange Little League Inc C/o Jennifer Schempp Treas
EIN 061311047 · Headquarters: ORANGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Orange Scholarship Fund
EIN 237105419 · Headquarters: Orange, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Orange Soccer Association
EIN 061259519 · Headquarters: Orange, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ