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
- International Service Agency Co Don Schwarz
EIN 731445641 · Headquarters: Tulsa, OK, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- International Shiloh Shepherd Alliance Inc
EIN 364857412 · Headquarters: Oklahoma City, OK, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Society for Analytical & Molecular Morphology
EIN 731575689 · Headquarters: Oklahoma City, OK, US · Science & Technology · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- International Society for Organ Pre Servation and Perfusion Therapy
EIN 412398045 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Society of Automation
EIN 872369760 · Headquarters: Jenks, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Society of Photosynthesis Research
EIN 260804449 · Headquarters: STILLWATER, OK, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- International Society of Reproductive Psychiatry
EIN 843316571 · Headquarters: Moore, OK, US · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Society of Safety Professionals
EIN 460887098 · Headquarters: Blanchard, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Society of the Energy Advocates
EIN 731398801 · Headquarters: Edmond, OK, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Trombone Association
EIN 237306397 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- International Ufo Bureau
EIN 332256371 · Headquarters: Warr Acres, OK, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Union of Elevator Constructors
EIN 730999710 · Headquarters: Broken Arrow, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- International Union of Operating Engineers Local 627
EIN 730451145 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Union Security Police Fire Professionals of America
EIN 270440622 · Headquarters: OKLAHOMA CITY, OK, US · Employment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- International Union Security Police Fire Professionals of America
EIN 611589481 · Headquarters: TINKER AIR FORCE BASE, OK, US · Crime & Legal Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- International Union Security Police Fire Professionals of America
EIN 731166655 · Headquarters: MCALESTER, OK, US · Crime & Legal Related · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- International Union UAW Local 5010
EIN 464338263 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- International Union UAW LOCAL 952
EIN 730738909 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- International Union United Auto Aerospace & Agricultural Workers
EIN 710233503 · Headquarters: OKLAHOMA CITY, OK, US · Employment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- International Union United Auto Aerospace & Agricultural Workers
EIN 710401581 · Headquarters: Oklahoma City, OK, US · Employment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- International Union United Automobile Aerospace & Agricultura
EIN 237291959 · Headquarters: Oklahoma City, OK, US · Science & Technology · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- International Union United Automobile Implement Workers of Am
EIN 510181148 · Headquarters: Oklahoma City, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- International University
EIN 731338134 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Village Inc
EIN 455100748 · Headquarters: Broken Arrow, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Visitors Council of Greater Oklahoma City Inc
EIN 731615783 · Headquarters: EDMOND, OK, US · International, Foreign Affairs & National Security · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- International Water for Life Inc
EIN 611493475 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- International Womens Forum Oklahoma Inc
EIN 731376170 · Headquarters: Oklahoma City, OK, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Womens Insolvency & Restructuring Confederation Inc
EIN 832161859 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Internet Safety Group Ltd
EIN 841915245 · Headquarters: NORMAN, OK, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Intersections4life Inc
EIN 473320267 · Headquarters: Yukon, OK, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Intertribal Wordpath Society
EIN 731514957 · Headquarters: Norman, OK, US · Human Services · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Intertwined Hearts Ministry Inc
EIN 870849989 · Headquarters: MIDWEST CITY, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Intervention & Crisis Advocacy Network
EIN 731147385 · Headquarters: CHICKASHA, OK, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Intimacy Directors International
EIN 822470977 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Intimate Pathways Foundation for Sexual Health
EIN 922487491 · Headquarters: BROKEN ARROW, OK, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Intl Alliance of Theatrical Stage Emplys Local 354
EIN 736102401 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Intl Assn Firefighters Broken Arrow Local 2551
EIN 731485066 · Headquarters: BROKEN ARROW, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Intl Assoc Firefighters Local 2551
EIN 510209364 · Headquarters: BROKEN ARROW, OK, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ
- Intl Professional Rodeo Association
EIN 730719751 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Into Every Good Work Ministries Inc
EIN 371564309 · Headquarters: OWASSO, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Into His Arms Ministries Inc
EIN 203195563 · Headquarters: Tulsa, OK, US · Religion Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Into the Nations Ba Erets
EIN 824752112 · Headquarters: Broken Arrow, OK, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Into the Woods Nature Camp Inc
EIN 994312431 · Headquarters: Tulsa, OK, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Inverness Village an Oklahoma Not-for-pr
EIN 731539802 · Headquarters: TULSA, OK, USA · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990
- Invertebrate Studies Institute Inc
EIN 832533785 · Headquarters: Midwest City, OK, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Invictus Baseball - Brammell
EIN 393202466 · Headquarters: Yukon, OK, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Invitation & Stationery Alliance Inc
EIN 271255148 · Headquarters: OKLAHOMA CITY, OK, USA · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990
- Involved International
EIN 471907530 · Headquarters: Tulsa, OK, United States · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Iota Kappa Phi
EIN 800756745 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Iota Mu Alumni Association of Kappa Kappa Psi
EIN 990969659 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Iowa Capital Investment Corporation
EIN 371452496 · Headquarters: OKLAHOMA CITY, OK, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Iowa Chapel Cemetery Association
EIN 731210951 · Headquarters: Perkins, OK, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ipma for Human Resources Oklahoma Chapter
EIN 731291988 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ipray Inc
EIN 800578096 · Headquarters: OKLAHOMA CITY, OK, US · Religion Related · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Iranian Christians of Central Us Inc
EIN 731379236 · Headquarters: TULSA, OK, USA · Religion Related · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ
- Iranian Neuroscientists Community
EIN 474542985 · Headquarters: Arcadia, OK, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Irefresh Ministries Inc
EIN 271008578 · Headquarters: Tulsa, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Irene M and Julian J Rothbaum Foundation
EIN 731463214 · Headquarters: TULSA, OK, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Irish Arts Project of Central Oklahoma Inc
EIN 731591859 · Headquarters: Oklahoma City, OK, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Iron Crows Inc
EIN 464752633 · Headquarters: Tulsa, OK, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Iron Gate Tulsa
EIN 203164551 · Headquarters: Tulsa, OK, United States · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Iron Horse Museum Inc
EIN 311018009 · Headquarters: Hugo, OK, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Iron Order Motorcycle Club Okc
EIN 884310879 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Iron Sharp Foundation
EIN 824280375 · Headquarters: ohelata, OK, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Iron Workers Local Union No 584 Joint Apprenticeship and Training Fund
EIN 730792884 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Iron Workers Western Oklahoma Area Joint Apprenticeship Committee
EIN 237063403 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Irondogz Booster Club
EIN 900868964 · Headquarters: Edmond, OK, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Ironhead Golf Booster Club
EIN 454770974 · Headquarters: Eufaula, OK, US · Recreation & Sports · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Ironheart Foundation
EIN 851873669 · Headquarters: OKLAHOMA CITY, OK, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ironworkers Local Union No 584
EIN 730242970 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Irresistible Hope Ministries Inc
EIN 933416227 · Headquarters: Edmond, OK, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Irvine Family Charitable Foundation
EIN 851968667 · Headquarters: GROVE, OK, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Isa-greater Oklahoma Section
EIN 731335708 · Headquarters: Oklahoma City, OK, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Isa-the Instrumentation Systems and Automation Society
EIN 736105913 · Headquarters: Tulsa, OK, US · Science & Technology · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Isaac Monts Study Club
EIN 871035311 · Headquarters: Lawton, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Isabella Church of the Nazarene
EIN 900791789 · Headquarters: ISABELLA, OK, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Isaiah 42 12 Outreach Inc
EIN 465427127 · Headquarters: Tulsa, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Isaiah 43 Ministries Inc
EIN 994391107 · Headquarters: Chelsea, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Isaiah 58 10
EIN 821222445 · Headquarters: Sand Springs, OK, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Isaiah 58 in His Service Inc
EIN 273079190 · Headquarters: TULSA, OK, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Isaiah 58 Ministries Inc
EIN 800546625 · Headquarters: Chelsea, OK, US · Religion Related · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Isaiah 61 Healing Families and Communities Foundation
EIN 844475047 · Headquarters: Ada, OK, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Isaiah 61 International Ministries Inc
EIN 475461799 · Headquarters: Broken Arrow, OK, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Isaiah Knight Legacy Foundation
EIN 352944535 · Headquarters: tulsa, OK, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Isaiah Stone Foundation
EIN 471191711 · Headquarters: Oklahoma City, OK, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990
- Isaiahs Field Inc
EIN 862654961 · Headquarters: Muldrow, OK, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Islamic Council of Oklahoma
EIN 300568116 · Headquarters: OKC, OK, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990
- Islamic Society of Stillwater
EIN 205644860 · Headquarters: Stillwater, OK, United States · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Islands Hana Mana Inc
EIN 824842859 · Headquarters: TULSA, OK, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ism-tulsa Inc
EIN 730411685 · Headquarters: Tulsa, OK, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Issi Users Group
EIN 473608939 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Istart Inc
EIN 841836616 · Headquarters: TULSA, OK, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Istoria Ministries Inc
EIN 461148679 · Headquarters: Enid, OK, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990
- It Matters Ministries Inc
EIN 933508631 · Headquarters: Edmond, OK, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- It Takes a Village Foundation
EIN 472356914 · Headquarters: Oklahoma City, OK, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- It Takes a Village Oklahoma Youth Organization Foundation
EIN 871528105 · Headquarters: Norman, OK, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- It's My Community Initiative Inc
EIN 030524399 · Headquarters: OKLAHOMA CITY, OK, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990
- Italian Art Society
EIN 262209330 · Headquarters: Norman, OK, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Itncentral Oklahoma
EIN 462250170 · Headquarters: Oklahoma City, OK, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Itr Healthy Life Foundations
EIN 300828949 · Headquarters: Seiling, OK, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N