Nonprofits in Madison, Wisconsin
Nonprofits in Madison, Wisconsin. Browse 4,170 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
- Nue-birchwood Education Support Professionals
EIN 262788585 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-bloomer Education Support Professionals
EIN 262788640 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-bruce
EIN 262788691 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-bruce Education Support Professionals
EIN 262795699 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-cameron
EIN 205946157 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-cameron Education Support Professionals
EIN 262788741 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-cesa 10 Education Support Professionals
EIN 262795737 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-cesa 11 Education Support Professionals
EIN 262795801 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-chetek
EIN 262788783 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-chetek Education Support Professionals
EIN 262788825 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-cooperative Educational Service Agency 11 Professionals
EIN 262788885 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-cooperative Educational Service Agency 11-Head Start
EIN 262788934 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-cumberland
EIN 237078925 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-cumberland Education Support Professionals
EIN 262788982 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-flambeau
EIN 262789058 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-flambeau Education Support Professionals
EIN 262789024 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-frederic
EIN 262789157 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-frederic Education Support Professionals
EIN 262789120 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-grantsburg
EIN 391470046 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-grantsburg Education Support Professionals
EIN 262789204 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-hayward
EIN 262789264 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-hayward Education Support Professionals
EIN 262789236 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-ladysmith
EIN 262789340 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-ladysmith Education Support Professionals
EIN 262789302 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-lake Holcombe
EIN 262789405 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-lake Holcombe Education Support Professionals
EIN 262789382 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-luck
EIN 391631888 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-new Auburn
EIN 262789484 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-new Auburn Education Support Professionals
EIN 262789442 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-osceola
EIN 262789529 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-prairie Farm
EIN 262789566 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-prairie Farm Education Support Professionals
EIN 262789593 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-rice Lake
EIN 391943185 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-shell Lake
EIN 371568528 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-shell Lake Education Support Professionals
EIN 870702827 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-spooner Custodians
EIN 262789661 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-spooner Education Support Professionals
EIN 262789708 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-st Croix Falls Education Support Professionals
EIN 262789749 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-turtle Lake
EIN 262789774 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-turtle Lake Education Support Professionals
EIN 262789800 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-unity Education Support Professionals
EIN 262789834 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-winter
EIN 262789952 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nue-winter Education Support Professionals
EIN 262789986 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nurses Foundation of Wisconsin Inc
EIN 237085166 · Headquarters: Madison, WI, US · Employment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Nurses on Boards Coalition
EIN 821962611 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oak Creek Education Association
EIN 237083175 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oak Creek Education Support Professionals
EIN 262707335 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oak Park Place Foundation Inc
EIN 821271889 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Oakfield Education Association
EIN 237088258 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oakfield Housing Inc C/o Wisconsin Housing Preservation Corp
EIN 391877014 · Headquarters: MADISON, WI, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oaks Ministry Collaborative Inc
EIN 992625585 · Headquarters: Madison, WI, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oakwood Chamber Players Inc
EIN 391873596 · Headquarters: Madison, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oakwood Foundation Inc
EIN 391398037 · Headquarters: MADISON, WI, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oakwood Village Prairie Ridge Apartments Inc
EIN 391966790 · Headquarters: MADISON, WI, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oakwood Village Prairie Ridge Homes Inc
EIN 391966791 · Headquarters: MADISON, WI, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oakwood Village University Woods Apartments Inc
EIN 237401541 · Headquarters: MADISON, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oakwood Village University Woods Homes Inc
EIN 390790565 · Headquarters: MADISON, WI, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oartherainbow Public Benefit Corporation
EIN 932187378 · Headquarters: Madison, WI, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Objective Veterans Smile
EIN 843788139 · Headquarters: Madison, WI, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Occupaws Guide Dog Association
EIN 205172386 · Headquarters: MADISON, WI, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990
- Occupy Madison Inc
EIN 461581696 · Headquarters: Madison, WI, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oconomowoc Education Association
EIN 237102137 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oconto County Farm Bureau Co-operative
EIN 390824309 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oconto Falls Education Association
EIN 237086066 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oconto Falls Education Support Personnel
EIN 391710772 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oconto Support Staff Association
EIN 262691413 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oconto Teachers Education Association
EIN 237103118 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ocular Physiology Research and Education Foundation Inc
EIN 391661745 · Headquarters: MADISON, WI, USA · Science & Technology · Latest available filing year: 2015 · Primary form: IRS Form 990-PF
- Odana Hills Golf Association
EIN 930836309 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Odyssey Con Society
EIN 471698598 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Office and Professional Employees International Union
EIN 390791784 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Offmonkey Inc
EIN 853063953 · Headquarters: Madison, WI, US · Mental Health & Crisis Intervention · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Ofs Holdings Inc
EIN 813970591 · Headquarters: MADISON, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990
- Okeeffe Middle School Parent-teacher Group Inc
EIN 460684475 · Headquarters: Madison, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olbrich Botanical Society Foundation Inc
EIN 392002821 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Olbrich Botanical Society Inc
EIN 391357247 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old Church Road Cemetery Association
EIN 391799539 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Old Middleton Road Apartments Inc
EIN 201427325 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Omega Psi Phi Fraternity Epsilon Theta Chapter
EIN 237065925 · Headquarters: Madison, WI, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Omega School Inc
EIN 391166888 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Omro Education Association
EIN 391706995 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Omro Paraprofessional Food Service Association
EIN 391752944 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- On Course For A Cure Inc
EIN 821470012 · Headquarters: Madison, WI, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ
- On the Map Orienteering Inc
EIN 871552982 · Headquarters: Madison, WI, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Onalaska Education Association
EIN 237272295 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oncology Nursing Society
EIN 521822328 · Headquarters: Madison, WI, US · Health Care · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- One City Broadway Inc
EIN 871816024 · Headquarters: MADISON, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- One City Schools Foundation Inc
EIN 874101609 · Headquarters: MADISON, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- One City Schools Inc
EIN 471490574 · Headquarters: MADISON, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- One Life Liberia Inc
EIN 823814014 · Headquarters: Madison, WI, US · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- One Wisconsin Now Inc
EIN 203765839 · Headquarters: MADISON, WI, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2018 · Primary form: IRS Form 990
- Oostburg Education Association
EIN 753267758 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Open Door Zen Community
EIN 475460639 · Headquarters: MADISON, WI, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Open Notebook Inc
EIN 452234167 · Headquarters: Madison, WI, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990
- Open Source Seed Initiative Inc
EIN 465440616 · Headquarters: MADISON, WI, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Open-out Professional and Executive Network- Inc
EIN 271876988 · Headquarters: MADISON, WI, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Opera for the Young Inc
EIN 391583686 · Headquarters: Madison, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Operation Fresh Start Inc
EIN 237108090 · Headquarters: MADISON, WI, USA · Employment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Operation Homefront - Wisconsin Inc
EIN 202740541 · Headquarters: MADISON, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990
- Operative Plasterers & Cement Masons Labor Management Cooperatio
EIN 861135736 · Headquarters: Madison, WI, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N