Unknown & Unclassified nonprofits in Ohio
Unknown & Unclassified nonprofits in Ohio. Browse 26,579 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
- Nursery Growers of Lake County Ohio Inc
EIN 311499558 · Headquarters: Madison, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nutis Foundation Inc
EIN 316065584 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Nwa Hawks Pee Wee Football Booster Club
EIN 237209092 · Headquarters: AKRON, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Nwannedinamba of Columbus
EIN 811939428 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nwo Electrical Administrators Inc
EIN 341956758 · Headquarters: ROSSFORD, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nys Assoc of Nurse Anesthetists
EIN 116042189 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- O B Foundation
EIN 364265177 · Headquarters: OTTAWA, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- O C N A
EIN 341628702 · Headquarters: Hilliard, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- O C Noble Endowment Trust Tr Ua
EIN 346574016 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- O Club
EIN 237166072 · Headquarters: WESTERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- O E S Hospital Circle
EIN 311083077 · Headquarters: HILLIARD, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- O E S Secretary and Treasurer Association of Ohio
EIN 300579690 · Headquarters: Chillicothe, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- O S B C T Training Foundation
EIN 311149656 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- O'bleness Charles - Foundation
EIN 316042978 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- O'brion Frank Trust Uw
EIN 066154532 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- O'Bryonville Business Association
EIN 311250580 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- O'neill Senior Center Inc
EIN 311172529 · Headquarters: MARIETTA, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oada Legal Defense Fund
EIN 311163138 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oagc Foundation Inc
EIN 311143137 · Headquarters: Greeville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oagc Region 4
EIN 263125878 · Headquarters: Liberty Twp, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oagc Region 9
EIN 272591106 · Headquarters: Reynoldsburg, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oak Grove Cemetery Corp Trust
EIN 380888264 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oak Grove Perpetual Care Tr
EIN 756009928 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oak Grove Volunteer Fire and Rescue Inc
EIN 311310940 · Headquarters: Marietta, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oak Harbor Amateur Wrestling Club
EIN 341878197 · Headquarters: Oak Harbor, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oak Harbor Area Education Association
EIN 237207493 · Headquarters: Port Clinton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oak Harbor Conservation Club Inc
EIN 510173777 · Headquarters: Oak Harbor, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oak Hill Cemetery Association
EIN 314368429 · Headquarters: London, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oak Hill Citizens for Better Housing Inc
EIN 311092113 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oak Hill Festival of Flags
EIN 311427260 · Headquarters: Oak Hill, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oak Hill Manor Housing Inc
EIN 311401049 · Headquarters: BLACKLICK, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oak Hill Union Local Education Association
EIN 311783845 · Headquarters: Oak Hill, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oak Hills Band Association Incorporated
EIN 311096176 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oak Hills Swim and Racquet Club Inc
EIN 310618056 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Oak Ridge Cemetery Association
EIN 477262476 · Headquarters: WELLSVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oak Street Foundation
EIN 933264423 · Headquarters: Mount Vernon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oakcreek Swim Club Inc
EIN 310729872 · Headquarters: KETTERING, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oakdale Elementary PTA
EIN 237256487 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oakhouse
EIN 311501768 · Headquarters: PORT CLINTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oakland Cemetery Association
EIN 340434745 · Headquarters: SHELBY, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oakland Park Chapel Community Church
EIN 310990967 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Oakview Elementary Parent-teacher Organization
EIN 237338142 · Headquarters: Kettering, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oakwood Boosters Association Inc
EIN 237083786 · Headquarters: DAYTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oakwood Cemetery Association
EIN 340434780 · Headquarters: WARREN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oakwood Cemetery Association
EIN 344318343 · Headquarters: BUCYRUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oakwood Country Club Inc
EIN 340743154 · Headquarters: NORTH CANTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Oakwood High School Lt John C White Scholarship Trust Fund
EIN 237036722 · Headquarters: Oakwood, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oakwood Historical Society Inc
EIN 237391667 · Headquarters: Dayton, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oakwood Library Association
EIN 341340810 · Headquarters: Oakwood, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oakwood Rotary Club
EIN 311008897 · Headquarters: DAYTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oakwood Teachers Association
EIN 341204545 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oapse Local 142 First Student Germantown
EIN 414920323 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oapse Local 222 Olentangy Local Aides
EIN 871467672 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oapse Local 287 Southern Local
EIN 202616842 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oapse Local 377B Lorain City Transportation
EIN 992027874 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oapse Local 399 Gahanna Jefferson Custodians
EIN 853419182 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oapse Local 607 Valley Local School District
EIN 933488293 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oapse Local 745 Pleasant Local
EIN 991884871 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oarsmen Club
EIN 341732234 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oasis Foundation Corp
EIN 881908432 · Headquarters: Mansfield, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oasis Group
EIN 261759060 · Headquarters: cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- OBannon Creek Golf Club Inc
EIN 310861031 · Headquarters: Loveland, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Obed's House Ministries
EIN 812701998 · Headquarters: SPRINGFIELD, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oberlin Center for the Arts
EIN 813197769 · Headquarters: OBERLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990
- Oberlin Community Improvement Corporation
EIN 341637609 · Headquarters: Oberlin, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oberlin Historical and Improvement Organization
EIN 346533053 · Headquarters: OBERLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oberlin Ohio Education Association
EIN 341575272 · Headquarters: AVON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oberlin Registered Nursesassociation
EIN 341294698 · Headquarters: Monroeville, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Oberlin Vfw Post 6273
EIN 341624164 · Headquarters: ELYRIA, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Obetz Cemetery Association
EIN 314239185 · Headquarters: OBETZ, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Obgc Ii Inc Helburn Meadows Garden Helburn Meadows Garden
EIN 311135813 · Headquarters: BLACKLICK, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oc Club Pink Retirees
EIN 346522485 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- OCCHA Inc
EIN 237214182 · Headquarters: Youngstown, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Occrra
EIN 311339322 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oconnell J H Fbo Town of S Paris Pfdn
EIN 016044615 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Odo Abasa
EIN 992333719 · Headquarters: Liberty Twp, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oes Sunshine
EIN 800950742 · Headquarters: ORRVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oesterlen - Services for Youth Foundation Inc
EIN 310536998 · Headquarters: SPRINGFIELD, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Office & Professional Employees
EIN 340555075 · Headquarters: ELYRIA, OH, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990
- Office & Professional Employees Union Local 98
EIN 310377575 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Office Products Dealer Association
EIN 510123726 · Headquarters: Brecksville, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Og High Risers
EIN 371668281 · Headquarters: Ottawa, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Oglebay Park-oglebay Institute Trust
EIN 341229414 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Ogrady Catholic University Pfdn
EIN 347082537 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Oh Afscme Retiree Subchapter S0108 Oh
EIN 943471775 · Headquarters: Westerville, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Oh Association Garden Club 16
EIN 311286235 · Headquarters: Jamestown, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Oh Delta Omega Chapter
EIN 316065519 · Headquarters: Camden, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Oh Masonic Hom-betty Oberle Ochr
EIN 346653981 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF
- Oh Oes District 6 2015 Wm
EIN 461514793 · Headquarters: Grand Rapids, OH, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Oh Pair
EIN 821873114 · Headquarters: Loveland, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Oh Superintendents of County Boards of Developmental Disabilities
EIN 311319905 · Headquarters: Celina, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Oh-ky-in Amateur Radio Society Inc
EIN 310679591 · Headquarters: WEST CHESTER, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ohio
EIN 815297942 · Headquarters: Millersburg, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ohio & West Virginia Sheetmetal Industry Partnership Committee
EIN 810559891 · Headquarters: North Royalton, OH, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Ohio - Michigan Association of Career Colleges and Schools
EIN 310883916 · Headquarters: Westerville, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ohio 4X4 Trailriders Inc
EIN 522117617 · Headquarters: Granville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ohio Academy of Audiology
EIN 311388079 · Headquarters: Circleville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ohio Academy of Family Physicians
EIN 314398155 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Ohio Academy of History
EIN 346608970 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ohio Academy of Nutrition & Dietetics
EIN 237173238 · Headquarters: Lewis Center, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ