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
- Sitter Foundation
EIN 822524919 · Headquarters: STAMFORD, CT, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Sjt Cosmetology
EIN 873933394 · Headquarters: New Haven, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Skatemovement Inc
EIN 461999160 · Headquarters: WESTPORT, CT, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Skating Club of Fairfield County
EIN 061458948 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990
- Ski Bears of Connecticut Inc
EIN 061086128 · Headquarters: Norwalk, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ski Sundown Race Team
EIN 263344638 · Headquarters: Avon, CT, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Skills Advancement Inc
EIN 263707752 · Headquarters: Avon, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Skills Camp Inc
EIN 760803774 · Headquarters: Meriden, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Skin in the Game Foundation Inc
EIN 452570640 · Headquarters: Avon, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sky Heart and Souls Inc
EIN 830734672 · Headquarters: STONINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ
- Skydive for Veterans
EIN 822239360 · Headquarters: BRANFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Skye Cable Xiiiinc
EIN 061512303 · Headquarters: WATERBURY, CT, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990
- Skylar S Thumbprint Inc
EIN 872732336 · Headquarters: TERRYVILLE, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Skylark Flyers-experimental Aircraft Association Chapter 1310
EIN 061609546 · Headquarters: Broad Brook, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Slainte Milford Inc
EIN 463946477 · Headquarters: Milford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Slant of Light Theater Company
EIN 943473270 · Headquarters: NORWALK, CT, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Slater Jett Meyers Foundation Inc C/o Glenn Meyers
EIN 030473048 · Headquarters: REDDING, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Slater Library Corporation
EIN 060664193 · Headquarters: JEWETT CITY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Slater's Lane Foundation Inc
EIN 331584309 · Headquarters: RIVERSIDE, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Slavic Heritage Institute Incorporated
EIN 232256133 · Headquarters: Torrington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sleeping Giant Day Care Inc
EIN 061010027 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sleeping Giant Park Association Inc
EIN 060946510 · Headquarters: Hamden, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Slinky Katz Inc
EIN 743216084 · Headquarters: New Hartford, CT, US · Animal Related · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Sloane Family Foundation Inc
EIN 133994916 · Headquarters: WESTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF
- Slooh Foundation Inc
EIN 871857684 · Headquarters: Washington, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Slovak Alliance of Greater Bridgeport Inc
EIN 237445213 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Slovak Catholic Sokol
EIN 237522608 · Headquarters: Bridgeport, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Slovak Catholic Sokol
EIN 237522795 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Slovak Catholic Sokol
EIN 237523019 · Headquarters: Torrington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Slovak Catholic Sokol
EIN 237523037 · Headquarters: Monroe, CT, US · Religion Related · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Slovak Catholic Sokol
EIN 237523070 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Slovak Catholic Sokol 86
EIN 237523093 · Headquarters: Torrington, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Slovak Catholic Sokol Assembly No 9 Inc
EIN 060538283 · Headquarters: Bridgeport, CT, US · Religion Related · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Slovak Catholic Sokol Branch 23 Inc
EIN 060568351 · Headquarters: TORRINGTON, CT, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Slovak Gymnastic Union Sokol of the USA
EIN 060538288 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Slovak Gymnastic Union Sokol of the USA Women 3W
EIN 237265824 · Headquarters: Bridgeport, CT, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Slovak Gymnastic Union Solol of the USA
EIN 237265716 · Headquarters: Stratford, CT, US · Recreation & Sports · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Slovak Gynastic Union Sokol of the USA 30
EIN 060844195 · Headquarters: Brookfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Slovak Heritage Festival
EIN 871699286 · Headquarters: GREENWICH, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Slow Food U S a Inc
EIN 453045775 · Headquarters: West Haven, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Slow Food USA Inc
EIN 061613569 · Headquarters: West Hartford, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Smacna Connecticut Inc
EIN 060618146 · Headquarters: GRANBY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Small Boarding School Association C/o David Tuttle Westover School
EIN 201062080 · Headquarters: MIDDLEBURY, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Small Business for a Healthy Connecticut
EIN 364690217 · Headquarters: West Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Small Business Support Collective Inc
EIN 934477318 · Headquarters: Ashford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Small Car Company Incorporated
EIN 822225823 · Headquarters: EASTON, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Small Dogs Housing Corporation
EIN 922788907 · Headquarters: ROCKY HILL, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- Small World Initiative Inc
EIN 811772308 · Headquarters: OLD GREENWICH, CT, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Small World Languages Inc
EIN 842077932 · Headquarters: Cheshire, CT, US · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Smaller Manufacturers Assn of Ct Inc
EIN 510163148 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smalley Brothers Vfw Post6123
EIN 066069925 · Headquarters: WINDSOR LOCKS, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Smart Kids with Learning Disabilities Inc
EIN 061544545 · Headquarters: NORWALK, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smart Local Union No 40
EIN 060532495 · Headquarters: ROCKY HILL, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990
- Smart Start Stem International
EIN 472517112 · Headquarters: Cheshire, CT, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Smart Woman Securities
EIN 264399153 · Headquarters: New Haven, CT, US · Social Science · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Smile Anyway
EIN 823498927 · Headquarters: BRANFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Smiles for Miles
EIN 861697880 · Headquarters: Ansonia, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Smiles I Cant See Inc
EIN 874263924 · Headquarters: New Milford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Smith College Class of 1942
EIN 132900670 · Headquarters: ESSEX, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Smith College Club of Darien New Canaan Norwalk & Wilton
EIN 237178043 · Headquarters: New Canaan, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Smith College Club of Greenwich Smith College Club of Greenwich &
EIN 066078119 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Smith College Club of New Haven
EIN 237427886 · Headquarters: Madison, CT, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Smith Cove Yacht Club Inc
EIN 066178734 · Headquarters: Waterford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Smith House Foundation Inc
EIN 061359628 · Headquarters: Stamford, CT, US · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Smith Middle School Steering Committee and Pto
EIN 832127959 · Headquarters: Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Smjo Inc
EIN 474695457 · Headquarters: Danbury, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Smocking Arts Guild of America Inc
EIN 581839768 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Smocking Arts Guild of America Inc
EIN 800397227 · Headquarters: Avon, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Smooth Jazz for Scholars Inc
EIN 204445900 · Headquarters: MILFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Sms Research Foundation Inc
EIN 272906662 · Headquarters: GEORGETOWN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Smsa Parent Teacher Organization Inc
EIN 455167497 · Headquarters: Hartford, CT, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Sneha Inc
EIN 311567083 · Headquarters: West Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- SNET Retirees Association
EIN 061520153 · Headquarters: MIDDLEBURY, CT, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Snug as a Bugz Corp
EIN 812070328 · Headquarters: Brookfield, CT, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Snyra Reunions Inc
EIN 273018088 · Headquarters: Bethel, CT, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Soar Educational Enrichment Inc
EIN 471188127 · Headquarters: SALISBURY, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Soar Together Inc
EIN 932682702 · Headquarters: REDDING, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Soaring Kids Inc
EIN 412722910 · Headquarters: Higganum, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Soaring on Angels Wings Incorporate D
EIN 331834323 · Headquarters: New Haven, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sober St Patricks Day Foundation Inc
EIN 462536409 · Headquarters: RIDGEFIELD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Soccer Belles Inc
EIN 881626215 · Headquarters: BROOKFIELD, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Soccer Club of New Milford Inc
EIN 061592251 · Headquarters: NEW MILFORD, CT, USA · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990
- Soccer Club of Newington Inc
EIN 222534368 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Soccer Club of Ridgefield Connecticut Inc
EIN 061073470 · Headquarters: RIDGEFIELD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- Soccer Unlimited Football Club Inc
EIN 811440243 · Headquarters: DEEP RIVER, CT, USA · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ
- Soccerplus Education Center Inc
EIN 202789976 · Headquarters: HARTFORD, CT, USA · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ
- Social Chase Inc
EIN 922350519 · Headquarters: Waterbury, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Social Communication Foundation Inc
EIN 800569010 · Headquarters: Stratford, CT, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Social Connections
EIN 061445081 · Headquarters: Old Lyme, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Social Enterprise Trust Inc
EIN 201452405 · Headquarters: HARTFORD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Social Group Work Foundation
EIN 061502686 · Headquarters: Weatogue, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Social Impact Partners Inc
EIN 851704762 · Headquarters: Westport, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Social Movement Technologies Foundation Inc
EIN 383889449 · Headquarters: Bloomfield, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Social Sabby Sponsorships Inc
EIN 842890842 · Headquarters: MERIDEN, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Social Simentor Inc
EIN 263670038 · Headquarters: New Canaan, CT, US · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Social Venture Circle 4
EIN 363836645 · Headquarters: CANAAN, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990
- Socialite Lighting Systems Inc
EIN 822471849 · Headquarters: Monroe, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Societa Beato Angelo Dacri Di M S Inc
EIN 300321182 · Headquarters: Shelton, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Societa Di M S Figlie Di Canicattini Bagni
EIN 843836140 · Headquarters: Rocky Hill, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Societa Maria Ss Del Monte Carmelo Building Associ
EIN 060540672 · Headquarters: Enfield, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990