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.
Browse by city (464)
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- South Glastonbury (27)
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- Vernon (105)
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- Wallingford (349)
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- West Hartford (625)
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- West Haven (255)
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- West Simsbury (30)
- West Suffield (21)
- Westbrook (62)
- Weston (117)
- Westport (456)
- Wetherfield (1)
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- Whitneyville (2)
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- Willimantic (97)
- Willington (38)
- Wilton (220)
- Winchester (3)
- Winchester Center (56)
- Windham (18)
- Windsor (227)
- Windsor Locks (72)
- Windsorville (1)
- Winsted (81)
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- Wolcott (97)
- Woloctt (1)
- Woodbridge (133)
- Woodbury (87)
- Woodstock (51)
- Woodstock Valley (5)
- Yalesville (11)
- Yalesville Ct (1)
- Yantic (2)
Nonprofit profiles
- 'R Kids Inc
EIN 061453694 · Headquarters: NEW HAVEN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- 009 Northwestern Connecticut Chapter of Trout Unlimited
EIN 061519154 · Headquarters: BARKHAMSTED, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 0189 Valley Shore Acappella Chapter
EIN 060971123 · Headquarters: Middletown, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 06880 INC
EIN 372000587 · Headquarters: WESTPORT, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- 07006 William M Wyman Chapter
EIN 731701942 · Headquarters: Wallingford, CT, US · Youth Development · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- 1 Freedom for All
EIN 823270255 · Headquarters: Danbury, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- 100 Black Men of Stamford Inc
EIN 061367429 · Headquarters: STAMFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- 100-106 Main Street Holding Inc
EIN 934741818 · Headquarters: NEW BRITAIN, CT, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990
- 10000 Hawks Inc
EIN 931498175 · Headquarters: New Haven, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- 10059 Trumbull Memorial Aux to Post
EIN 237328923 · Headquarters: MONROE, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 100Girlsleading
EIN 844191153 · Headquarters: BRIDGEPORT, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- 101 Association Inc
EIN 222553725 · Headquarters: TORRINGTON, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 102D Infantry Regiment Association Inc
EIN 061465130 · Headquarters: Danbury, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 102Nd Infantry Regiment Museum Inc
EIN 061354580 · Headquarters: West Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 103 Ang Consolidated Mess Inc
EIN 274654844 · Headquarters: Orange, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 10Th World Congress of Veterinary Dermatology
EIN 852229252 · Headquarters: SOUTHINGTON, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990
- 11 Farmington Valley
EIN 237244673 · Headquarters: GLASTONBURY, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- 12 Metre Yacht Development Foundation
EIN 066409216 · Headquarters: Southport, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- 12 Square Feet Yoga Incorporated
EIN 392329059 · Headquarters: Sandy Hook, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 12 West Main Street Trustees
EIN 066263169 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- 1214 Foundation Inc
EIN 462452667 · Headquarters: NEWTOWN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ
- 122 Watertown
EIN 237584906 · Headquarters: Glastonbury, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- 12345 Kids Count of Milford Inc
EIN 061411387 · Headquarters: MILFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- 129 Farmington Valley Chapter of Trout Unlimited
EIN 510208504 · Headquarters: BRISTOL, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 12By12by12 Inc
EIN 814924066 · Headquarters: NEW MILFORD, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- 130 Howe Street Inc
EIN 061605510 · Headquarters: NEW HAVEN, CT, USA · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990
- 14Th Willimantic Club
EIN 060636864 · Headquarters: Windham, CT, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- 150 Commons Way Investors Inc C/O UBS REALTY INVESTORS LLC
EIN 061599812 · Headquarters: HARTFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990
- 1533 State Street Inc
EIN 061535382 · Headquarters: NEW HAVEN, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- 1636 Heritage Partnership Inc
EIN 833771810 · Headquarters: Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 165 Main Street Inc
EIN 060742617 · Headquarters: SEYMOUR, CT, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- 169Th Infantry Veterans Corps
EIN 061029888 · Headquarters: New Britain, CT, US · Public & Societal Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- 1746 Machinist Club
EIN 060733684 · Headquarters: EAST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- 1768 Foundation
EIN 883838423 · Headquarters: Weston, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 1777 Wooster-sons of Liberty Foundation
EIN 815160937 · Headquarters: RIDGEFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ
- 17T Local
EIN 046121809 · Headquarters: New Britain, CT, US · Employment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- 1892 Club Inc
EIN 061622806 · Headquarters: Hartford, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- 1898 Foundation Inc
EIN 933078611 · Headquarters: HAMDEN, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 191 Teamsters Local Retiree Chapter
EIN 061159973 · Headquarters: BRIDGEPORT, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 191914 Ministries Incorporated
EIN 261675759 · Headquarters: Middletown, CT, US · Health Care · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- 1947 Townsend Street Incorporated
EIN 871447604 · Headquarters: New Haven, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 1974 Wihs 50 Reunion Inc
EIN 933128451 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- 1By1 International Inc
EIN 461839198 · Headquarters: DURHAM, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- 1Drop Relief Foundation Corp
EIN 871531905 · Headquarters: Colchester, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 1Rak Inc
EIN 843131469 · Headquarters: South Glastonbury, CT, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- 1St Church Preschool
EIN 061413944 · Headquarters: Cheshire, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- 1St Maryland Infantry Company H C S a Inc
EIN 061567372 · Headquarters: MANCHESTER, CT, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- 2 Feet 4 Good
EIN 852548794 · Headquarters: ENFIELD, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- 2 Moms on a Mission Inc
EIN 461041408 · Headquarters: ENFIELD, CT, USA · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-PF
- 2-4-1 Care Inc
EIN 874014880 · Headquarters: Hartford, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- 20 Ansantawae Lea
EIN 066039567 · Headquarters: waterbury, CT, US · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- 203 Squash Association Inc
EIN 823925408 · Headquarters: WESTPORT, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- 206 INC
EIN 770713856 · Headquarters: MIDDLETOWN, CT, US · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- 20Th Century Trends Institute Inc
EIN 066098560 · Headquarters: Stamford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- 21 Connecticut Chapter
EIN 066089321 · Headquarters: New Milford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- 217 Nutmeg Chapter of Trout Unlimited
EIN 237290732 · Headquarters: FAIRFIELD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 21St Century Fund for Hvrhs Inc
EIN 463683577 · Headquarters: Falls Village, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- 21St Century Tolland Fund Inc
EIN 822714244 · Headquarters: WNDSOR, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990
- 222-29 Ue Local
EIN 061430432 · Headquarters: Shelton, CT, US · Employment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- 222-40 Ue Local
EIN 061452679 · Headquarters: Cheshire, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- 233 Allen Street Inc
EIN 061290964 · Headquarters: HARTFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- 26 Angels Foundation Inc
EIN 461738330 · Headquarters: Southbury, CT, US · Religion Related · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- 261 Fearless Club Connecticut
EIN 831607799 · Headquarters: Wethersfield, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- 281 Naugatuck-pomperaug Chapter of Trout Unlimited
EIN 521491972 · Headquarters: MIDDLEBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 282 Thames Valley Chapter of Trout Unlimited
EIN 510208513 · Headquarters: COLUMBIA, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 28675834 Litmindtree Megaminds
EIN 933095289 · Headquarters: South Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- 28677928 Gamma Gabbers
EIN 333658842 · Headquarters: Meriden, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 28677955 Hartford Healthcare Hartfo Rd Region Club
EIN 394898872 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 28678052 Subway North Hub
EIN 392660716 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 28678242 Trinet Toastmasters Club
EIN 393199533 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 290 Post Road West Corp
EIN 061318049 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- 293 New Haven Council
EIN 060725370 · Headquarters: Hamden, CT, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- 2F Films Incorporated
EIN 933701336 · Headquarters: HADDAM NECK, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 2Nd Connecticut Volunteer Heavy Artillery
EIN 061481431 · Headquarters: Woodbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 2Ndgo Inc
EIN 851834582 · Headquarters: Hawleyville, CT, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- 2Plus of North Carolina Inc
EIN 861086325 · Headquarters: ROCKY HILL, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990
- 2Tunics Inc
EIN 931477860 · Headquarters: Bridgewater, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- 3 2 1 Learn Inc
EIN 882933091 · Headquarters: Glastonbury, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 3-33 Group Inc
EIN 061591563 · Headquarters: DERBY, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 309 Candlewood Valley Chapter of Trout Unlimited
EIN 061496855 · Headquarters: HAWLEYVILLE, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 32 Sports Inc
EIN 920595125 · Headquarters: MANCHESTER, CT, USA · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- 330 North Brand Inc C/o Ubs Realty Investors Llc
EIN 200521721 · Headquarters: HARTFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- 333 Valley Street an Intergenerational Organization Inc
EIN 852606807 · Headquarters: NEW HAVEN, CT, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990
- 3350 Latino and Puerto Rican Club
EIN 061546295 · Headquarters: West Hartford, CT, US · Public & Societal Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- 35 High Street House Corporation
EIN 061448927 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- 3565 Suffield Firefighters Union International Association of Firef
EIN 841518815 · Headquarters: Suffield, CT, US · Employment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- 36 Tower Lane Inc
EIN 392506114 · Headquarters: New Haven, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 360 Management Group Co
EIN 820934474 · Headquarters: NEW HAVEN, CT, USA · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990
- 364 Putnam Avenue Inc
EIN 061344206 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- 365 Mobilize
EIN 884318146 · Headquarters: Oakville, CT, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 38Th Regiment of Foot
EIN 393355140 · Headquarters: Danbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 399 Vfw-conn Veterans of Foreign Wars Inc
EIN 066146182 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- 3C Corporation
EIN 412046529 · Headquarters: New Haven, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- 3D Music Academy Inc
EIN 872372303 · Headquarters: WATERBURY, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- 4 Beez International Inc
EIN 843812743 · Headquarters: New Haven, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- 4 Conservation Charitable Foundation
EIN 993849804 · Headquarters: New London, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- 4 Cs Square Dance Club Inc
EIN 061095535 · Headquarters: berlin, CT, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- 4-Ct Corp
EIN 850535172 · Headquarters: NEW HAVEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- 4-H Clubs & Affiliated 4-H Organizations
EIN 060959152 · Headquarters: Torrington, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- 4-H Clubs & Affiliated 4-H Organizations
EIN 060967638 · Headquarters: Haddam, CT, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N