Nonprofits in Illinois
Nonprofits in Illinois. Browse 87,324 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
- Osmani Family Foundation of Illinois USA
EIN 260226100 · Headquarters: Inverness, IL, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Osmania Medical Alumni Charitable Foundation Inc
EIN 010651759 · Headquarters: Oak Brook, IL, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Osmosis Educ Mentoring Initiate
EIN 770647000 · Headquarters: CHICAGO, IL, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oso Initiative
EIN 992179817 · Headquarters: Chicago, IL, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Osprey Foundation
EIN 364000368 · Headquarters: CHICAGO, IL, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Osprey Foundation Inc
EIN 392042898 · Headquarters: WINNETKA, IL, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Osseointegration Foundation
EIN 363773538 · Headquarters: ARLINGTON HEIGHTS, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osteopathic International Alliance
EIN 342027901 · Headquarters: CHICAGO, IL, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oswego Area Chamber of Commerce
EIN 363712848 · Headquarters: OSWEGO, IL, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oswego Bears Youth Football and Cheer Nfp
EIN 451744705 · Headquarters: MONTGOMERY, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oswego Chapter 2157 Women of the Moose
EIN 912000290 · Headquarters: Mooseheart, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Oswego Christian Foundation
EIN 320091574 · Headquarters: OSWEGO, IL, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oswego Citizens Police Academy Alumni Association
EIN 364101531 · Headquarters: Oswego, IL, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oswego Cobras Baseball Club NFP
EIN 208066800 · Headquarters: Oswego, IL, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990
- Oswego Downtown Association Nfp
EIN 823008550 · Headquarters: Oswego, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Oswego East Wolf Parents
EIN 813445824 · Headquarters: OSWEGO, IL, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oswego East Wolfpack
EIN 815269519 · Headquarters: Oswego, IL, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oswego Economic Development Corp
EIN 364056140 · Headquarters: OSWEGO, IL, USA · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990
- Oswego Foundation for Educational Excellence
EIN 364052360 · Headquarters: Oswego, IL, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oswego Hockey Inc
EIN 820611395 · Headquarters: Aurora, IL, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oswego Junior Panthers
EIN 393701016 · Headquarters: Oswego, IL, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oswego Lady Panthers Fastpitch Softball Inc
EIN 263062890 · Headquarters: OSWEGO, IL, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oswego Wolves Softball Association
EIN 205453909 · Headquarters: Aurora, IL, USA · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ
- Oswego Youth Tackle Football Inc
EIN 363785359 · Headquarters: Oswego, IL, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oswegoland Fishin Fools Inc
EIN 200548222 · Headquarters: Oswego, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oswegoland Heritage Association
EIN 362867783 · Headquarters: Oswego, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oswegoland Park & Recreation Foundation Inc
EIN 134281897 · Headquarters: Oswego, IL, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oswegoland Pony Baseball Inc
EIN 363669909 · Headquarters: OSWEGO, IL, USA · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990
- Oswegoland Seniors Inc
EIN 263947440 · Headquarters: OSWEGO, IL, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ot Leaders and Legacies Foundation
EIN 834066607 · Headquarters: Glenwood, IL, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Otc Chicago
EIN 821988547 · Headquarters: Deerfield, IL, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Otcr Consulting Nfp
EIN 874092132 · Headquarters: Champaign, IL, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ote Basketball Youth Fund Inc
EIN 821568368 · Headquarters: CHICAGO, IL, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oteria Jackson Foundation Inc
EIN 810977021 · Headquarters: Chicago, IL, US · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Other Guys Alumni Association
EIN 264566304 · Headquarters: WARRENSBURG, IL, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Other Theatre Company
EIN 464947634 · Headquarters: Lombard, IL, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Other Women Hear You
EIN 900636090 · Headquarters: chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Otherworld Theatre Company
EIN 460994094 · Headquarters: Chicago, IL, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990
- Otis a & Margaret T Barnes Trust Xxxxx4003
EIN 846023466 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Otis G Pike Article Viii Charitable Trust
EIN 476865159 · Headquarters: CHICAGO, IL, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Ottawa Area Chamber of Commerce and Industry
EIN 361588690 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ottawa Art League
EIN 362673617 · Headquarters: Ottawa, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa Avenue Cemetery Association Inc
EIN 366071938 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ottawa Baseball Boosters Inc
EIN 364647353 · Headquarters: OTTAWA, IL, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa Canal Association
EIN 273249936 · Headquarters: Ottawa, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa Chapter 522 Women of the Moose
EIN 237301219 · Headquarters: Ottawa, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Ottawa Chapter of Illinois Association of Highway Engineers
EIN 366108247 · Headquarters: Ottawa, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa Christian Academy
EIN 871607081 · Headquarters: Ottawa, IL, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Ottawa Concert Assoication
EIN 237163005 · Headquarters: OTTAWA, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ottawa Downtown Association Inc
EIN 993140651 · Headquarters: OTTAWA, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa Eagles Youth Football Nfp
EIN 203831989 · Headquarters: Ottawa, IL, US · Recreation & Sports · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Ottawa Ffa Alumni Booster Association
EIN 463131958 · Headquarters: GRAND RIDGE, IL, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Ottawa First Nfp
EIN 273914004 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Ottawa Freedom Asssociation Ltd
EIN 363846378 · Headquarters: Ottawa, IL, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Ottawa Friendship House Work Activity Center Inc
EIN 362600477 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ottawa Girls Fastpitch Association
EIN 363815938 · Headquarters: OTTAWA, IL, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Ottawa Historical and Scouting Heritage Museum
EIN 363930360 · Headquarters: OTTAWA, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa Hiway Credit Union
EIN 362512001 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Ottawa Jewish Cemetery
EIN 366052977 · Headquarters: Ottawa, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa Kiwanis Foundation Nfp
EIN 475206350 · Headquarters: Ottawa, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Ottawa Lodge 960 Loyal Order of Moose
EIN 362032536 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ottawa Opportunity School
EIN 362786924 · Headquarters: Ottawa, IL, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ottawa Opportunity School Foundatio
EIN 834228789 · Headquarters: Ottawa, IL, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Ottawa Police Benevolent & Protecti
EIN 050532283 · Headquarters: OTTAWA, IL, USA · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ
- Ottawa Police Benevolent & Protective Association
EIN 882998088 · Headquarters: Ottawa, IL, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa Public Schools Band and Orchestra Parents Association
EIN 510192559 · Headquarters: Ottawa, IL, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa Regional Hospital & Healthcare Center Liability Loss Fund
EIN 363612653 · Headquarters: OTTAWA, IL, USA · Health Care · Latest available filing year: 2014 · Primary form: IRS Form 990
- Ottawa Regional Hospital Auxiliary
EIN 363854788 · Headquarters: Peoria, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Ottawa Regional Hospital Foundation
EIN 364007569 · Headquarters: Peoria, IL, USA · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Ottawa Rescue Squad Inc
EIN 366116482 · Headquarters: OTTAWA, IL, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990
- Ottawa Soccer Club
EIN 820655009 · Headquarters: OTTAWA, IL, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Ottawa Township High School
EIN 363914588 · Headquarters: Ottawa, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ottawa Township High School Booster Club
EIN 363506348 · Headquarters: Ottawa, IL, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Ottawa Visitors Center
EIN 364082603 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Ottawa Ymca Foundation
EIN 872963366 · Headquarters: Ottawa, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Ottawa Youth Football League
EIN 271682485 · Headquarters: Ottawa, IL, US · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Otter Creek Elementary PTO
EIN 271974443 · Headquarters: Elgin, IL, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Otter Creek Historical Society
EIN 363253751 · Headquarters: Durand, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Otter Creek Historical Society Inc
EIN 371380500 · Headquarters: Otterville, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Otters Swim Team
EIN 464762087 · Headquarters: Joliet, IL, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Otto Baum Company Inc Foundation
EIN 371376985 · Headquarters: Morton, IL, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Otto Bender Scholarship Trust 895
EIN 376341841 · Headquarters: Carlyle, IL, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Otto Redlich Charitable Trust Xxxxx9001
EIN 766189212 · Headquarters: CHICAGO, IL, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Otto Villwock Medical Educational Scholarship
EIN 510172011 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- OTV Open Television Inc
EIN 824446544 · Headquarters: Chicago, IL, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990
- Ouilmette Foundation
EIN 363233128 · Headquarters: WILMETTE, IL, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Ouilmette Golf Club Inc
EIN 363570951 · Headquarters: Wilmette, IL, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Our Aging Services
EIN 923004496 · Headquarters: Chicago, IL, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Our Angel of Hope of Southeastern Illinois Trust
EIN 300066636 · Headquarters: FLORA, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Our Art of Giving
EIN 824252274 · Headquarters: chicago, IL, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Our Babies Matter
EIN 813970110 · Headquarters: Chicago, IL, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Our Bags of Love Foundation
EIN 862145779 · Headquarters: Park Forest, IL, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Our Big Sky Ranch
EIN 874064929 · Headquarters: BARRINGTON, IL, USA · Animal Related · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- Our Brothers Keepers of Southern Illinoi
EIN 472977358 · Headquarters: EAST SAINT LOUIS, IL, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Our Caring Closet Nfp
EIN 454420867 · Headquarters: Wilmington, IL, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Our Children Fundation
EIN 301118916 · Headquarters: Chicago, IL, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Our Children's Homestead
EIN 391791398 · Headquarters: NAPERVILLE, IL, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Our Common Ground
EIN 850484834 · Headquarters: Greenville, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Our Communities First Inc
EIN 932326927 · Headquarters: FINDLAY, IL, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Our Community of Illinois Inc Nfp
EIN 203396319 · Headquarters: Chicago, IL, US · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-N