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
- Silent Santa
EIN 043477372 · Headquarters: Windham, CT, US · Human Services · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Silk City Slammers Inc
EIN 824098831 · Headquarters: Manchester, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Silk City Striders
EIN 611593795 · Headquarters: Manchester, CT, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Silk N Sounds Inc
EIN 262337660 · Headquarters: HAMDEN, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Silver City Flying Club Inc
EIN 736501521 · Headquarters: BEACON FALLS, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Silver City Gun Club Inc
EIN 061074630 · Headquarters: Meriden, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Silver City Junior Motor Sports Association Inc
EIN 061289890 · Headquarters: Meriden, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- Silver Family Foundation C/o Walter Berlingo and Company
EIN 061532898 · Headquarters: DARIEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Silver Hill Health Inc
EIN 933510578 · Headquarters: NEW CANAAN, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Silver Hill Hospital Inc
EIN 060655139 · Headquarters: NEW CANAAN, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990
- Silver Paws Haven and Hospice
EIN 824592319 · Headquarters: Windham, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Silver Platter Foundation Inc
EIN 472306332 · Headquarters: Ridgefield, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Silver Shield Association Education Fund Inc
EIN 813194644 · Headquarters: GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Silver Shield Association Inc
EIN 061009211 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Silver Spring Country Club Incorporated
EIN 060536020 · Headquarters: RIDGEFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Silverbacks Wrestling Club Inc
EIN 542192838 · Headquarters: WILLIMANTIC, CT, USA · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ
- Silverleaf Foundation Inc
EIN 134097906 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Silverlinks
EIN 471318043 · Headquarters: Cheshire, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Silvermine Community Association Inc
EIN 060882862 · Headquarters: Norwalk, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Silvermine Community Scholarship Trust
EIN 066084562 · Headquarters: Norwalk, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Silvermine Foundation Inc
EIN 134097905 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-PF
- Silvermine Guild of Artists Inc
EIN 060674168 · Headquarters: NEW CANAAN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Silvermine Series Inc
EIN 810638253 · Headquarters: NORWALK, CT, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Silversource Inc
EIN 991895904 · Headquarters: STAMFORD, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Simmons Family Foundation Inc
EIN 061409685 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Simplex Sciences
EIN 474509993 · Headquarters: NEW HAVEN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Simplifyct Inc
EIN 851504162 · Headquarters: DARIEN, CT, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990
- Simply Gray Matters
EIN 820727415 · Headquarters: Wallingford, CT, US · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Simply Live and Love Fully Inc
EIN 474350566 · Headquarters: Durham, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Simply Sharing Inc
EIN 901004031 · Headquarters: ESSEX, CT, US · Housing & Shelter · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Simply Smiles Inc
EIN 562332922 · Headquarters: WESTPORT, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990
- Simpson Lighthouse Foundation
EIN 823758929 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Simsbury Abc Program Inc
EIN 237306464 · Headquarters: SIMSBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Simsbury Airport Association Inc
EIN 061179749 · Headquarters: GRANBY, CT, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990
- Simsbury Baseball Inc
EIN 843982516 · Headquarters: Simsbury, CT, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Simsbury Camera Club Inc
EIN 066108179 · Headquarters: Simsbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Simsbury Cemetery Association
EIN 060536775 · Headquarters: SIMSBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Simsbury Chamber Music Festival Inc
EIN 200779053 · Headquarters: West Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Simsbury Community Band
EIN 061070686 · Headquarters: Simsbury, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Simsbury Community Television Inc Eno Memorial Hall
EIN 222540873 · Headquarters: Simsbury, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990
- Simsbury Cultural Enrichment Committee
EIN 272068682 · Headquarters: SIMSBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Simsbury Education Enhancement Foundation Inc
EIN 061409295 · Headquarters: Simsbury, CT, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Simsbury Farms Mens Club Inc
EIN 061098980 · Headquarters: Simsbury, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Simsbury Fish & Game Club Incorporated
EIN 371691403 · Headquarters: East Granby, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury Free Library
EIN 060646898 · Headquarters: SIMSBURY, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Simsbury Friends for Music and the Performing Arts Inc
EIN 223192101 · Headquarters: SIMSBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury Gridiron Club Inc
EIN 061613244 · Headquarters: Simsbury, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Simsbury High School Boosters Inc
EIN 862170055 · Headquarters: Simsbury, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury High School Field Hockey Boosters
EIN 994400835 · Headquarters: Simsbury, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Simsbury High School Hall of Fame Inc
EIN 994400326 · Headquarters: Simsbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury High School Student-parent-teacher Council Inc
EIN 273945423 · Headquarters: Simsbury, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury Historical Society Inc
EIN 066039934 · Headquarters: Simsbury, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Simsbury Horticultural Society
EIN 843585743 · Headquarters: Simsbury, CT, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Simsbury Hs Boys Lax Boosters Inc
EIN 334632523 · Headquarters: Simsbury, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Simsbury Junior Womens Club Inc
EIN 066075679 · Headquarters: Simsbury, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Simsbury Land Trust Inc
EIN 060958573 · Headquarters: SIMSBURY, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Simsbury Lax Boosters Inc
EIN 452396602 · Headquarters: Simsbury, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Simsbury Light Opera Company Inc
EIN 066056225 · Headquarters: Simsbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury Lions Charities Inc
EIN 223456504 · Headquarters: Simsbury, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury Little League Baseball Inc
EIN 521277711 · Headquarters: SIMSBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Simsbury Main Street Partnership Inc
EIN 061447125 · Headquarters: SIMSBURY, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Simsbury Music & Arts Center Inc
EIN 060771290 · Headquarters: Simsbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Simsbury National Little League
EIN 275483990 · Headquarters: SIMSBURY, CT, USA · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ
- Simsbury Newcomers Club Inc
EIN 463986379 · Headquarters: Sisbury, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury Performing Arts Center Inc
EIN 274640969 · Headquarters: SIMSBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Simsbury Pollinator Pathway Inc
EIN 863147889 · Headquarters: Simsbury, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Simsbury Radio Control Club
EIN 271379414 · Headquarters: West Simsbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury Rotary Club Ed Dodge Scholarship Endowment Inc
EIN 061315620 · Headquarters: SIMSBURY, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Simsbury Rugby Club Inc
EIN 820602826 · Headquarters: Simsbury, CT, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Simsbury Soccer Club Inc
EIN 060952125 · Headquarters: SIMSBURY, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- Simsbury Summer Theater for Youth Inc
EIN 061100550 · Headquarters: Simsbury, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Simsbury Veterans Memorial Inc
EIN 471864959 · Headquarters: Simsbury, CT, US · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Simsbury Volunteer Ambulance Assoc Inc
EIN 066062402 · Headquarters: SIMSBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Simsbury Youth Basketball Inc
EIN 873475543 · Headquarters: SIMSBURY, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Simsbury Youth Football & Cheer
EIN 881565789 · Headquarters: Simsbury, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Simsbury Youth Hockey Association Inc
EIN 237112976 · Headquarters: SIMSBURY, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- Simsbury Youth Lacrosse Inc
EIN 562549527 · Headquarters: Simsbury, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Simsbury-Avon Youth Football Inc
EIN 061216439 · Headquarters: Simsbury, CT, US · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Sina Corporation
EIN 061501542 · Headquarters: HARTFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990
- Sinc-ct Corp
EIN 880905418 · Headquarters: W Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sing Out Ct Inc
EIN 471028253 · Headquarters: WASHINGTON, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Single Moms Alliance
EIN 831988290 · Headquarters: New Haven, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Singles Under Sail Inc
EIN 223098471 · Headquarters: NEW CANAAN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sino American Pharmaceutical Professionals Association Connecti
EIN 992708892 · Headquarters: Glastonbury, CT, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sino-american Network for Therapeutic Radiology and Oncology
EIN 205865371 · Headquarters: GUILFORD, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Siobhan Cady Memorial Foundation for the Support of the Arts
EIN 061396280 · Headquarters: Norwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Sirasu Education Project
EIN 474219108 · Headquarters: Orange, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Sirius About Acceptance
EIN 992251957 · Headquarters: CHESHIRE, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Sister Cities Essex Haiti Inc
EIN 800636231 · Headquarters: ESSEX, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Sister Cities International of Hartford Ct Inc
EIN 223072541 · Headquarters: Plainville, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sister's Journey Inc
EIN 200664996 · Headquarters: North Haven, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Sistergood Inc
EIN 922623374 · Headquarters: Stamford, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Sisterhood & Brotherhood of American Islanders
EIN 871571608 · Headquarters: Hamden, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Sisters at the Shore
EIN 862907082 · Headquarters: Bridgeport, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Sisters of Charity of Our Lady, Mother of the Church
EIN 391205444 · Headquarters: Baltic, CT, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990
- Sisters of Providence Care Centers Inc
EIN 222541103 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Sisters of the Adoration Corp
EIN 550874182 · Headquarters: DANIELSON, CT, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990
- Sisters Project
EIN 453539070 · Headquarters: WALLINGFORD, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sisu Inc
EIN 931572938 · Headquarters: Enfield, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Site Projects Inc
EIN 841644452 · Headquarters: New Haven, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ