Nonprofits in Massachusetts
Nonprofits in Massachusetts. Browse 52,168 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 Simsmaes Foundation Inc
EIN 680575207 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Single Step Foundation
EIN 047025935 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Singleton Family Foundation
EIN 912141187 · Headquarters: FRANKLIN, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Sino Judaic Institute
EIN 770076761 · Headquarters: Roslindale, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Sisters of Charity of Saint Mary Inc
EIN 980196189 · Headquarters: WEST ROXBURY, MA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Sisters of Saint Ann Inc
EIN 042002060 · Headquarters: PAXTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Sixth Amendment Center Incorporated
EIN 453477185 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Sizer Foundation Inc
EIN 141874834 · Headquarters: DEVENS, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Skating Club of Boston
EIN 041839710 · Headquarters: NORWOOD, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Slade Foundation
EIN 264009831 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Sliver Club
EIN 043191878 · Headquarters: Hanson, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Small-scale Sustainable Infra-
EIN 043582215 · Headquarters: CAMBRIDGE, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Smiley Fund Inc
EIN 880719255 · Headquarters: WEST HYANNISPORT, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Smith Foundation
EIN 046795433 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Sober Living Foundation Inc
EIN 815362245 · Headquarters: FALMOUTH, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ
- The Social-emotional Learning Alliance for Massachusetts Inc
EIN 464307579 · Headquarters: SOMERVILLE, MA, USA · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ
- The Societies for Pediatric Urology
EIN 581472879 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Society for Biblical Studies Inc
EIN 043358960 · Headquarters: ARLINGTON, MA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Society for Small Molecule Science Inc
EIN 161775790 · Headquarters: REHOBOTH, MA, USA · Social Science · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ
- The Society for Surgery of the Alimentary Tract Inc
EIN 366147052 · Headquarters: BEVERLY, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Society of American Military Engineers Boston Post Inc
EIN 046188767 · Headquarters: WESTFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Society of Arts and Crafts C/o Nonprofit Numerics
EIN 042103850 · Headquarters: WORCESTER, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Society to Help Education in Bangladesh International Inc
EIN 133406723 · Headquarters: Bedford, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Soldiers Fund Inc
EIN 452448686 · Headquarters: Boston, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Solomon Family Charitable Foundation
EIN 205621838 · Headquarters: LYNN, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- The Solomon Family Foundation C/o Dsf Group
EIN 203124600 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF
- The Solomon Fund
EIN 352740017 · Headquarters: BEVERLY, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Solstice Singers
EIN 043236583 · Headquarters: Falmouth, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Somerset Club
EIN 041850150 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Somerset Club Charitable Trust
EIN 046112332 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Somerville Community Corporation Inc
EIN 237293380 · Headquarters: SOMERVILLE, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Somerville Foundation Inc
EIN 814505509 · Headquarters: SOMERVILLE, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Somerville Home Inc
EIN 042105741 · Headquarters: SOMERVILLE, MA, USA · Housing & Shelter · Latest available filing year: 2018 · Primary form: IRS Form 990
- The Sonny Whooley Foundation Inc
EIN 342029784 · Headquarters: Watertown, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Sontag Prize in Urban Education Inc
EIN 471265528 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ
- The Soul of Ukraine Foundation Inc
EIN 473423173 · Headquarters: Malden, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Sound of A Smile Inc
EIN 883487828 · Headquarters: Medford, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- The Source Point Foundation Inc
EIN 933575639 · Headquarters: YARMOUTH PORT, MA, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- The South Boston Foundation
EIN 834460007 · Headquarters: SOUTH BOSTON, MA, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The South Hadley Community Chorus Inc
EIN 223076453 · Headquarters: SOUTH HADLEY, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Southborough Historical Societyinc
EIN 237131696 · Headquarters: SOUTHBOROUGH, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Southborough Players Incorporated
EIN 042875206 · Headquarters: Southborough, MA, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- The Southborough Village Society Inc
EIN 223315625 · Headquarters: SOUTHBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- The Space Consortium Inc
EIN 873853358 · Headquarters: Cambridge, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Sparhawk Foundation Inc
EIN 475112301 · Headquarters: Millis, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Spark Foundation
EIN 477106346 · Headquarters: WESTWOOD, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Spark Foundation Inc
EIN 841734642 · Headquarters: NATICK, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Sparrow Collective Inc
EIN 331579858 · Headquarters: HUDSON, MA, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Speech and Language Network
EIN 461338720 · Headquarters: CONCORD, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- The Spero Project Inc
EIN 922289025 · Headquarters: Reading, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Sphere Northampton Inc
EIN 932143770 · Headquarters: FLORENCE, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Spillane Charitable Foundation
EIN 043341720 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Spillane Charitable Trust
EIN 406000038 · Headquarters: BRAINTREE, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-PF
- The Spiral School Inc
EIN 383780133 · Headquarters: SAGAMORE, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Sports Museum of New England Inc
EIN 042637109 · Headquarters: BOSTON, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Sportsmen's Tennis & Enrichment Center Inc
EIN 237037183 · Headquarters: DORCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Springfield Cemetery
EIN 041858710 · Headquarters: Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Springfield Institute Inc
EIN 431992800 · Headquarters: Amherst, MA, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- The Springfield Puerto Rican Parade Inc
EIN 853019456 · Headquarters: SPRINGFIELD, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Sprout Fund
EIN 207224324 · Headquarters: SPRINGFIELD, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF
- The Spungin Family Foundation
EIN 261124991 · Headquarters: MARBLEHEAD, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Squared Network
EIN 921469219 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990
- The Srichard and Patricia R Penni Charitable Fou
EIN 043037802 · Headquarters: WESTWOOD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Ss Forbes Teachers Fund
EIN 046022766 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Staley Foundation Inc
EIN 263064943 · Headquarters: CHARLESTOWN, MA, US · Medical Research · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- The Stanley Fund for the Broad Institute
EIN 465574304 · Headquarters: CAMBRIDGE, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Stanley H & Theodora L Feldberg Foundation
EIN 222604911 · Headquarters: FRAMINGHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Stanley Park of Westfield Inc
EIN 042131404 · Headquarters: WESTFIELD, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Stanton Foundation C/o Hemenway & Barnes Llp
EIN 133598005 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Stare Fund
EIN 046026648 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Starfish Foundation Inc
EIN 043484710 · Headquarters: HOLYOKE, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Steinberg Lalli Char Fndt
EIN 206184268 · Headquarters: ACTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Stella-rosie Foundation Inc
EIN 273562171 · Headquarters: Carlisle, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- The Stephen & Joyce Schultz Charitable Foundation
EIN 046772546 · Headquarters: DEDHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- The Stephen Bourke Fund for Childhood Cancer Research Inc
EIN 042794162 · Headquarters: Lynn, MA, US · Medical Research · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- The Stephen JHendrickson FoundationInc C/o SJ Hendrickson
EIN 043140238 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Stephen Magner Memorial Inc
EIN 900142790 · Headquarters: PLYMOUTH, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- The Stephen Phillips Memorial Preserve Trust
EIN 042639987 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Stephen Phillips Memorial Scholarship Fund Inc
EIN 275040651 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Stephens Naphtal Foundation Inc
EIN 474563328 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Stern Family Charitable Trust
EIN 874113949 · Headquarters: FOXBORO, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Steve and Sarah Howard Family Foundation Inc
EIN 461554444 · Headquarters: SHIRLEY, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Steven C and Carmella R Kletjian Foundation Inc
EIN 454834776 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- The Steven E and Michelle Karol Charitable Foundation Trust
EIN 043282853 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Stevens Family Foundation
EIN 811003926 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Stewart Family Foundation Inc
EIN 043424745 · Headquarters: BROCKTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Stockbridge Bowl Association
EIN 222521512 · Headquarters: STOCKBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Stone Family Adoption Assistance Fund Inc
EIN 208386546 · Headquarters: MATTAPOISETT, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Stone Waldinger Family Foundation Inc
EIN 832801442 · Headquarters: WEST NEWTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- The Storer Trust
EIN 046034836 · Headquarters: Belmont, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Stow Minutemen
EIN 208373017 · Headquarters: Stow, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The Straetz Foundation
EIN 650754972 · Headquarters: CHARLTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Stratford Foundation
EIN 222524023 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Stratton Players Inc
EIN 046079244 · Headquarters: FITCHBURG, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Studio 878 Trust
EIN 046898363 · Headquarters: CHATHAM, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- The Sturgis Library
EIN 042318944 · Headquarters: BARNSTABLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Substance Destroyer Inc
EIN 222900402 · Headquarters: foxboro, MA, US · Mental Health & Crisis Intervention · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- The Subversive Gardener
EIN 833770376 · Headquarters: BEVERLY, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- The Sudarsky Family Foundation Inc
EIN 831362706 · Headquarters: West Newton, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Sudbury Art Association Inc
EIN 272563727 · Headquarters: Sudbury, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N