Nonprofits in Oklahoma
Nonprofits in Oklahoma. Browse 25,638 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
- Osma Health - Health Plan
EIN 270093845 · Headquarters: OKLAHOMA CITY, OK, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990
- Osoi Foundation
EIN 270235546 · Headquarters: NORMAN, OK, USA · Health Care · Latest available filing year: 2020 · Primary form: IRS Form 990
- Osso Foundation
EIN 900247184 · Headquarters: EDMOND, OK, US · Health Care · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Osta Foundation Inc
EIN 201728670 · Headquarters: YUKON, OK, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osteopathic Founders Foundation
EIN 730583936 · Headquarters: Tulsa, OK, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osteopathic Medical Education Consortium of Oklahoma Dba Omeco
EIN 452525815 · Headquarters: TULSA, OK, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ostomy 2-1-1 Incorporated
EIN 472744902 · Headquarters: McLoud, OK, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ostomy Association of Oklahoma City Inc
EIN 510150140 · Headquarters: Oklahonma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ostomy Support Group Lawton Ft Sill
EIN 731362507 · Headquarters: Lawton, OK, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Osu Animal Science Alumni Association
EIN 820894344 · Headquarters: STILLWATER, OK, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osu Kappa Parents Club Inc
EIN 994250955 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Osu Orthpaeic Research and Education Fund
EIN 884313098 · Headquarters: TULSA, OK, US · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- OSU Pi Kappa Alpha Parents Club Inc
EIN 881946675 · Headquarters: Stillwater, OK, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Osu Society for Veterinary Surgery & Anesthesiology
EIN 463583103 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Osu Student Chapter of American Association of Feline Practitioner
EIN 994251750 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Osu-university Multispectral Laboratories Llc
EIN 861160864 · Headquarters: STILLWATER, OK, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990
- Ot Autry Vocational and Technical Educational Foundation
EIN 731353799 · Headquarters: ENID, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ota-dui School of Ok Inc
EIN 923867324 · Headquarters: SKIATOOK, OK, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Otha H Grimes Foundation
EIN 731293858 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Other Options Inc
EIN 731341319 · Headquarters: Oklahoma City, OK, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ottawa County Farmers Market Association
EIN 812581695 · Headquarters: miami, OK, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa County Health Coalition Inc
EIN 260019087 · Headquarters: Miami, OK, US · Health Care · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Ottawa County Historical Society
EIN 730752334 · Headquarters: Miami, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ottawa County Hudson Creek Group
EIN 262437208 · Headquarters: Miami, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Ottawa County Nutrition Coalition Incorporated
EIN 731124627 · Headquarters: Miami, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Ottawa County Retired Educators
EIN 471191036 · Headquarters: Miami, OK, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Ottawa County Rural Water and Sewer District No 2
EIN 736113782 · Headquarters: Miami, OK, USA · Public & Societal Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990
- Ottawa County Rural Water District #5
EIN 731040843 · Headquarters: Wyandotte, OK, USA · Public & Societal Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990
- Ottawa County United Way Inc
EIN 730767369 · Headquarters: MIAMI, OK, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Ottawa Craig Counties Cattlemens Association Inc
EIN 822591046 · Headquarters: WELCH, OK, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990
- Otw Dmm
EIN 822611698 · Headquarters: TIPTON, OK, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ou Botanical Society
EIN 843969994 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Ou Education Services
EIN 932156911 · Headquarters: NORMAN, OK, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- OU Energy Management Alumni Assn Educational Foundation
EIN 470952281 · Headquarters: Oklahoma City, OK, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Ou Fanatics Inc
EIN 731211740 · Headquarters: TULSA, OK, USA · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ
- Ou Medicine Inc
EIN 821883948 · Headquarters: OKLAHOMA CITY, OK, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-T
- Ou Mens Varsity Rugby Club
EIN 472867924 · Headquarters: Norman, OK, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ou Womens Health Advocacy
EIN 872516676 · Headquarters: Norman, OK, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ouachita Mountains Resource Conservation & Development
EIN 731312122 · Headquarters: Poteau, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ouhsc Pa Class of 2025
EIN 932920655 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Oumc Pastoral Education Inc Co Danny Cavet
EIN 262792477 · Headquarters: OKLAHOMA CITY, OK, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ
- Our Blood Institute
EIN 731008735 · Headquarters: Oklahoma City, OK, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990
- Our Choctaw Nation Inc
EIN 814952863 · Headquarters: TULSA, OK, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Our City Inc
EIN 465201498 · Headquarters: Oklahoma City, OK, US · Youth Development · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Our Community Cares Coalition Inc
EIN 822989874 · Headquarters: Madill, OK, US · Mental Health & Crisis Intervention · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Our Dear Friends Inc
EIN 262167518 · Headquarters: Oklahoma City, OK, US · Human Services · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Our Family Matters Incorporated
EIN 731601424 · Headquarters: Durant, OK, US · Crime & Legal Related · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Our Family Ministry Inc
EIN 451057023 · Headquarters: Owasso, OK, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Our Fathers Love Ministry Inc
EIN 352380145 · Headquarters: wagoner, OK, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Our Fathers Work
EIN 822749869 · Headquarters: Broken Arrow, OK, US · Religion Related · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Our House Too Inc
EIN 912192204 · Headquarters: Tulsa, OK, US · Health Care · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Our Journee Home
EIN 883785004 · Headquarters: TULSA, OK, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Our Kidz United Inc
EIN 471516670 · Headquarters: Oklahoma City, OK, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Our Kitchen Table Inc
EIN 731474470 · Headquarters: Tulsa, OK, US · Religion Related · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Our Little Rat Rescue - Oklahoma
EIN 821013262 · Headquarters: OKLAHOMA CITY, OK, US · Animal Related · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Our Neighborhood Empowered Inc Formerly Cole Community Impact Org
EIN 460697629 · Headquarters: OKLAHOMA CITY, OK, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Our Neighbors Cupboard Inc
EIN 822638878 · Headquarters: Tishomingo, OK, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990
- Our Pack Animal Refuge
EIN 922555310 · Headquarters: Guthrie, OK, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Our Village It Takes One Incorporated
EIN 815114984 · Headquarters: Tulsa, OK, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Out of District Association - Oklahoma
EIN 874365484 · Headquarters: YUKON, OK, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Out of Harms Way Inc
EIN 882385659 · Headquarters: Tulsa, OK, US · Housing & Shelter · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Outback Resource Opportunities Inc
EIN 731502727 · Headquarters: Edmond, OK, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Outcast Under Transformation Inc
EIN 471309151 · Headquarters: ARDMORE, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Outdoor Adventure Centers Inc
EIN 850947616 · Headquarters: Tulsa, OK, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Outdoor Dreams Adventures Inc
EIN 271481327 · Headquarters: Owasso, OK, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Outdoor Recreation & Resource Coalition Inc
EIN 731363446 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Outdoorsmen in Action Inc
EIN 471963607 · Headquarters: Sperry, OK, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Outlaws Sportsman Hunting Club
EIN 200476883 · Headquarters: Weleetka, OK, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Outpourings Inc
EIN 873500594 · Headquarters: MULDROW, OK, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Outrageous Love Inc
EIN 812786688 · Headquarters: Oklahoma City, OK, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990
- Outreach Connections Inc
EIN 731596021 · Headquarters: Oklahoma City, OK, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Outreach Education Initiative Inc
EIN 814114054 · Headquarters: TULSA, OK, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Outside the Doors Ministries Foundation
EIN 872124177 · Headquarters: OKLAHOMA CITY, OK, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Outside the Walls Ministries Inc
EIN 883963630 · Headquarters: Sand Springs, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Outsiders Rescue and Sanctuary
EIN 863270014 · Headquarters: Claremore, OK, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Outsiders Tnr
EIN 852392745 · Headquarters: Tulsa, OK, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Over the Ridge Inc
EIN 884344711 · Headquarters: TULSA, OK, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Overcoming Job Transition Inc
EIN 821340386 · Headquarters: Tulsa, OK, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Overcoming Through the Crisis Inc
EIN 731597777 · Headquarters: Perry, OK, USA · Human Services · Latest available filing year: 2015 · Primary form: IRS Form 990-PF
- Overeaters Anonymous Intergroup
EIN 731156989 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Overflow Global Ministries
EIN 332926881 · Headquarters: Tulsa, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Overland Encounters
EIN 821058395 · Headquarters: TULSA, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Overwatch Group Inc
EIN 823949144 · Headquarters: Noble, OK, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Band Patrons Club
EIN 731311899 · Headquarters: OWASSO, OK, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Owasso Baseball Booster Club Inc
EIN 731536560 · Headquarters: Owasso, OK, USA · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990
- Owasso Basketball Booster Club
EIN 731536445 · Headquarters: Owasso, OK, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Owasso Bouquet of Gardeners
EIN 753130976 · Headquarters: Owasso, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Chamber of Commerce
EIN 731133740 · Headquarters: OWASSO, OK, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Owasso Character Council Inc
EIN 452585685 · Headquarters: OWASSO, OK, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Cheer Booster Club Ocbc
EIN 731549274 · Headquarters: OWASSO, OK, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Owasso Community Choir Club
EIN 260315495 · Headquarters: Owasso, OK, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Community Foundation Inc
EIN 680561352 · Headquarters: Owasso, OK, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Community Resources Inc
EIN 731445318 · Headquarters: Owasso, OK, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Owasso Community Theatre
EIN 753126291 · Headquarters: Owasso, OK, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Cops for Kids Inc
EIN 263155088 · Headquarters: Owasso, OK, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Education Foundation Inc
EIN 731367373 · Headquarters: Owasso, OK, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Owasso Farmers and Artisans Market Association
EIN 852642883 · Headquarters: Owasso, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Feline Rescue
EIN 432042226 · Headquarters: Owasso, OK, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Fire Prevention Association
EIN 834171964 · Headquarters: collinsville, OK, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Owasso Firefighters Charitable Foundation
EIN 934596884 · Headquarters: Owasso, OK, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N