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
- The Alex Charitable Trust
EIN 061546079 · Headquarters: Woodbridge, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Alex Fisher Foundation Inc
EIN 821752820 · Headquarters: ENFIELD, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Alexander Rothschild Family Fou Alexander Rothschild
EIN 332088334 · Headquarters: DARIEN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Alfa Foundation
EIN 137228276 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Allied Printing Services Charitable Foundation
EIN 320224365 · Headquarters: MANCHESTER, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Allwin Family Foundation
EIN 137088461 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Alopeace Project Corp
EIN 870853273 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- The Alpha & Omega Prophetic Street & Outreach Ministry
EIN 853295212 · Headquarters: Waterbury, CT, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- The Altum Fund
EIN 991522072 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The American Academy of Psychodynamic Psychiatry and Psychoanalysis
EIN 131854603 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- The American Branch of the International Law Association
EIN 300827111 · Headquarters: HARTFORD, CT, USA · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990
- The American Friends of Factum Foundation Inc C/o Carmody Torrance
EIN 475486901 · Headquarters: NEW HAVEN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The American Legion
EIN 301437773 · Headquarters: Avon, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The American Legion Post 12
EIN 060843098 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The American Legion Veterans Housing Inc
EIN 753265862 · Headquarters: JEWETT CITY, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- The American Museum of Industry
EIN 311737150 · Headquarters: Lakeville, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-PF
- The American Radio Relay League Inc
EIN 066000004 · Headquarters: NEWINGTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990
- The American Spine and Chronic Pain Association Ltd
EIN 264656944 · Headquarters: AVON, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- The Amistad Center for Art & Culture Inc
EIN 222849122 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Amity Charitable Trust Fund
EIN 066070867 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Amity Club Incorporated
EIN 066070895 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Ana Grace Project Inc
EIN 822812451 · Headquarters: NEWTOWN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Ancient Accepted Scottish Rite of Hartford Inc
EIN 066047605 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Andreo-Kells Family Foundation Inc
EIN 813112880 · Headquarters: East Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-PF
- The Anguilla Foundation Inc
EIN 822781157 · Headquarters: Bolton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Anikstein Family Fund Inc
EIN 821984948 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Animal Haven, Inc.
EIN 060735382 · Headquarters: North Haven, CT, United States · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Annex Young Men's Association
EIN 060917032 · Headquarters: NEW HAVEN, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Anthony Trust Association
EIN 060245162 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Antiquarian & Landmarks Society Inc
EIN 060789151 · Headquarters: HARTFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Antonacci Family Foundation for Charitable Giving Inc
EIN 061414354 · Headquarters: ENFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Apollo Singing Society Incorporated
EIN 222558351 · Headquarters: Hamden, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- The Apple Blossom School and Family Center Inc
EIN 010816812 · Headquarters: WILTON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Arc Eastern Connecticut Inc
EIN 066010477 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Arc of Connecticut Inc
EIN 060735882 · Headquarters: CANTON CENTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Arc of Litchfield County Inc
EIN 066075006 · Headquarters: TORRINGTON, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Arc of Quinebaug Valley Inc
EIN 060847364 · Headquarters: Danielson, CT, USA · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990
- The Arc of Southington Inc
EIN 060983817 · Headquarters: PLANTSVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Arc of the Farmington Valley Inc
EIN 066011136 · Headquarters: CANTON, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Arms of Grace of Ct
EIN 800516496 · Headquarters: Stamford, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Army & Navy Club Inc
EIN 060246500 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Arnold and Rhoda Steiger Charitable Foundation
EIN 061555068 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-PF
- The Arrival Project
EIN 413731157 · Headquarters: Darien, CT, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Artists Collective Inc
EIN 060889475 · Headquarters: HARTFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Arts at Bissells End Inc
EIN 392408984 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Arts Cafe Mystic Inc
EIN 451646961 · Headquarters: Groton, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Aryn and Matthew Grossman Foundation
EIN 137437176 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF
- The Asher Family Foundation Inc
EIN 061514419 · Headquarters: Old Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Ashway House Charitable Foundation Trust
EIN 206103232 · Headquarters: Thompson, CT, USA · Human Services · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ
- The Ask Family Foundation C/o Angeles Z Kozlowski Trustee
EIN 061602889 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Association for Humanist Sociology Inc
EIN 261840173 · Headquarters: HARTFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- The Astronomical Society of Greater Hartford
EIN 060957015 · Headquarters: Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Auerbach Schiro Foundation
EIN 133692236 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Auxiliary for Community Health
EIN 066038108 · Headquarters: Winsted, CT, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Avon Connecticut Robotics Team
EIN 680663822 · Headquarters: Branford, CT, US · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- The Axion Research Foundation Inc
EIN 222604752 · Headquarters: HAMDEN, CT, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Ayers Wild Cat Conservation Trust
EIN 836391580 · Headquarters: WEST HARTFORD, CT, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The B E R E a D Y Project Inc
EIN 863346486 · Headquarters: TORRINGTON, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- The Babe Ruth League of Norwalk Inc
EIN 471902451 · Headquarters: Norwalk, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Backyard Beekeepers Association Inc
EIN 061439788 · Headquarters: Redding Ridge, CT, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Bailey Foundation Inc
EIN 222777447 · Headquarters: Stamford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF
- The Bailiwick Club Inc
EIN 060879602 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Bakes Family Foundation Inc
EIN 010565588 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF
- The Ballet School of Stamford
EIN 061517402 · Headquarters: Stamford, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Bannow Larson Foundation Inc
EIN 066084233 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Barbara and Edward Netter Foundation
EIN 453189477 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Barbara and Gil Kemp Foundation Inc
EIN 203834827 · Headquarters: DARIEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Barden Foundation Inc
EIN 066054855 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Barnes Foundation Inc C/o Timothy O'connor
EIN 066037160 · Headquarters: MARION, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Barnum Museum Foundation Inc
EIN 222723433 · Headquarters: BRIDGEPORT, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Barron Charitable Foundation
EIN 200996056 · Headquarters: NORWALK, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF
- The Bauer Family Foundation Inc
EIN 581861919 · Headquarters: New Canaan, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Bauer Foundation C/o Shipman & Goodwin
EIN 066032985 · Headquarters: LAKEVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Baxter Foundation
EIN 256603101 · Headquarters: Westport, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Bea and Shailer Breck Foundation
EIN 206659832 · Headquarters: CLINTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF
- The Beacon Trust
EIN 222531744 · Headquarters: Willimantic, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- The Bears of Manchester Llc
EIN 113769896 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- The Beaver Brook Vol Fire Co Inc
EIN 066060267 · Headquarters: DANBURY, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ
- The Becker Family Trust
EIN 066428921 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Beckerer Foundation Inc
EIN 061495830 · Headquarters: BRIDGEPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Beljanski Foundation Inc
EIN 134086570 · Headquarters: GREENWICH, CT, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Belle Haven Club Inc
EIN 060255690 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Bench Warmers Inc
EIN 222743929 · Headquarters: Durham, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Benjamin B Rauch Fund
EIN 270186524 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Benjamins Foundation Inc
EIN 582531292 · Headquarters: STAMFORD, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Bennington Taylor Foundation C/o Manatuck Hill Ptrs Attn Mark Broach
EIN 061577282 · Headquarters: WESTPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF
- The Berkley Foundation for Historical Books and Documents
EIN 995033731 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Berkshire League
EIN 061509397 · Headquarters: Terryville, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Bernard Buddy Jordan Foundation Inc
EIN 204927054 · Headquarters: Bridgeport, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Bertram Steinman Family Foundation Inc C/o S Steinman
EIN 113570704 · Headquarters: WESTPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Best Production Company Inc
EIN 061427059 · Headquarters: NORWICH, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Betsy and Jesse Fink Family Foundation
EIN 137219308 · Headquarters: FAIRFIELD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Betty Knox Foundation Inc
EIN 066083770 · Headquarters: Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Bidwell Foundation C/o Donald Bidwell Trustee
EIN 066537621 · Headquarters: MIDDLETOWN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Bigs Foundation Inc
EIN 814743120 · Headquarters: GREENWICH, CT, USA · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-PF
- The Bijou Film Society
EIN 452605630 · Headquarters: BRIDGEPORT, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990
- The Bill Library Association Inc
EIN 066041059 · Headquarters: Ledyard, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Biondi Family Foundation
EIN 061621058 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2012 · Primary form: IRS Form 990-PF
- The Birchwood Country Club Incorporated
EIN 060614265 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Bites Foundation
EIN 208082713 · Headquarters: FAIRFIELD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF