Unknown & Unclassified nonprofits in Oklahoma
Unknown & Unclassified nonprofits in Oklahoma. Browse 6,510 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
- H E Sowers Burial Assn
EIN 736103185 · Headquarters: CHICKASHA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- H O P E Recovery Ministries International Inc
EIN 881331229 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- H2ope Humanitarian Inc
EIN 994470503 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ha-kesher Inc
EIN 731301438 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Habitat for Humanity International
EIN 461807872 · Headquarters: MCALESTER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Habitat for Humanity International Inc Stroud
EIN 731373921 · Headquarters: Stroud, OK, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990
- Habitat for Humanity International Ponca City Area
EIN 731380507 · Headquarters: PONCA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Haiders Paws Forward
EIN 413040390 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Haley Palmer Foundation
EIN 274206482 · Headquarters: Collinsville, OK, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Hampton Roads Alumni Association of Kappa Kappa Psi
EIN 990968247 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hand to Hand Inc
EIN 731342402 · Headquarters: HAWORTH, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Hand Up Ministries
EIN 731501719 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Happy Place
EIN 814079673 · Headquarters: Pauls Valley, OK, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Happy World Foundation Inc
EIN 830971134 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Har-ber Village Foundation
EIN 710541295 · Headquarters: GROVE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Hardesty Senior Citizens
EIN 731193930 · Headquarters: guymon, OK, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Harding Fine Arts Academy Foundation
EIN 834575379 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Harley Owners Group Wind River Chapter Inc
EIN 731538083 · Headquarters: LAWTON, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Harmon County Farm Bureau
EIN 737142077 · Headquarters: Hollis, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Harmon County Historical Society
EIN 731317464 · Headquarters: Hollis, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Harmon Electric Association Inc
EIN 730274135 · Headquarters: HOLLIS, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Harmon Water Corporation
EIN 730792661 · Headquarters: GOULD, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Harper County Farm Bureau
EIN 730629153 · Headquarters: Buffalo, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Harper County Historical Society
EIN 730951811 · Headquarters: LAVERNE, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Harrah Memory Lane Cemetery Assn Inc
EIN 731274036 · Headquarters: HARRAH, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Harrah Senior Citizens Inc
EIN 731242596 · Headquarters: HARRAH, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Harris Foundation Inc
EIN 736093072 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Harry Hammerly Trust Co First National Bank & Trust Co
EIN 736111266 · Headquarters: CHICKASHA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Hashtag4hope Inc
EIN 473509685 · Headquarters: LOCUST GROVE, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Haskell County Farm Bureau
EIN 730730495 · Headquarters: Stigler, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Haskell County Water Company
EIN 730785146 · Headquarters: STIGLER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Havannah Ranch Haven of Hope Inc
EIN 371769885 · Headquarters: Muskogee, OK, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Hbi Global Partners USA Inc
EIN 951996703 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Healdton Band Boosters
EIN 842710183 · Headquarters: Healdton, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Healing Is Possible Ministries
EIN 394530798 · Headquarters: ENID, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Health Occupations Students of America
EIN 260704156 · Headquarters: Owasso, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Health Occupations Students of America
EIN 521284108 · Headquarters: Owasso, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Health Occupations Students of Okla
EIN 731031993 · Headquarters: STILLWATER, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Health Teams International Inc
EIN 731284112 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Hearing Loss Association of Oklahoma City Inc
EIN 731651264 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Heart of Classic Country Music
EIN 800313576 · Headquarters: SAND SPRINGS, OK, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Heartland Frame Building Association
EIN 272542004 · Headquarters: sand springs, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Heartland Homeschool Organization - Woodward
EIN 821595079 · Headquarters: WOODWARD, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Heartway Corporation
EIN 760234412 · Headquarters: Idabel, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Hee Mountain Hunting Club
EIN 272443070 · Headquarters: broken bow, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Hellen Thomas Evangelistic Assoc Inc
EIN 731143627 · Headquarters: BROKEN ARROW, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Helping Hands for Successful Living Inc
EIN 814853315 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Helping Hands Foundation of Green Country
EIN 471424409 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Helping Others Obtain Personal Salvation
EIN 320180511 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Helping Others365
EIN 824014344 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Hendrix Community Senior Citizens Centers Inc
EIN 731361846 · Headquarters: HENDRIX, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Hennessey Educational School Foundation Inc
EIN 731388289 · Headquarters: HENNESSEY, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Henry & Elizabeth Donaghey Foundation Bokf Na
EIN 751937116 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Henryetta Historical Society
EIN 731174759 · Headquarters: Henryetta, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Herbert and Roseline Gussman Foundation
EIN 736090063 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Heritage Hills Owners Association
EIN 730942886 · Headquarters: ENID, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Heritage Homeschool Friends Inc
EIN 474145875 · Headquarters: Skiatook, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Heritage League of the Enid Area
EIN 731229888 · Headquarters: Enid, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Herman Kaiser Foundation
EIN 510173653 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Herman P and Sophia Taubman Foundation %Bank of Oklahoma Private Wealth
EIN 736092820 · Headquarters: Tulsa, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Hfv Wilson Community Center Authority Inc
EIN 730663082 · Headquarters: ARDMORE, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Hfwc Ltd
EIN 814695386 · Headquarters: Ramona, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- HH Champlin Foundation
EIN 735682900 · Headquarters: Enid, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Hickory Grove Cemetary Association
EIN 731208212 · Headquarters: FAIRLAND, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hickory Village Inc
EIN 731076961 · Headquarters: STILWELL, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Hicks Mountain Fire Department Incorporated
EIN 393583035 · Headquarters: Lone Wolf, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Higher Ground for Humanity
EIN 330783200 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Highland East Cheer Booster Inc
EIN 883979071 · Headquarters: Moore, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Highland Park Demolay Building Corp
EIN 736110749 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Highlands Latin Cottage School of Stillwater
EIN 844886587 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Highway 9 Community Center
EIN 510176140 · Headquarters: Eufaula, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hillcrest Country Club
EIN 730283820 · Headquarters: BARTLESVILLE, OK, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990
- Hillcrest Swim Club Inc
EIN 731242414 · Headquarters: Watonga, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Hillel the Foundation for Jewish Campus Life
EIN 264347198 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Hillside Cemetary Association
EIN 731158700 · Headquarters: SKIATOOK, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Hirams Thunder
EIN 821411369 · Headquarters: Bethany, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- His Clay Inc
EIN 273291774 · Headquarters: Piedmont, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Historic Roger Mills Preservation and Development Foundation Inc
EIN 731451727 · Headquarters: CHEYENNE, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Historic Shawnee Alliance
EIN 474600023 · Headquarters: Shawnee, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Historical Preservation Inc
EIN 237023817 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Hma Foundation
EIN 813232468 · Headquarters: Ada, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Ho Hos Central Oklahoma Clown Alley
EIN 800408975 · Headquarters: Midwest City, OK, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Hobart Chamber of Commerce
EIN 730284650 · Headquarters: HOBART, OK, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Hochatown Rural Water District No 5
EIN 731317069 · Headquarters: BROKEN BOW, OK, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990
- Hojel Schumacher Foundation
EIN 731373992 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Holdenville Education Foundation
EIN 900539732 · Headquarters: Holdenville, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Holdenville General Hospital Foundation
EIN 731401065 · Headquarters: Holdenville, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Holdenville School Band Boosters
EIN 473323839 · Headquarters: Holdenville, OK, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Holdenville Society of Painters and Sculptors Inc
EIN 731171766 · Headquarters: Holdenville, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Holiday Rambler Recreational Vehicle Club Inc
EIN 861071066 · Headquarters: Clinton, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Holiness in Mexico
EIN 742632182 · Headquarters: Pauls Valley, OK, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Holiness Missions Outreach
EIN 731291091 · Headquarters: Sapulpa, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Holly Recreation Club of Tulsa Inc
EIN 736104131 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Holt Ministries
EIN 731284583 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Holy Child College Old Girls Association - Na
EIN 863641220 · Headquarters: Ponca City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Holy Family Walkers Volksmarch Club
EIN 331218580 · Headquarters: Lawton, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Home Baking Association Inc
EIN 362422312 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Home Builders Assoc of Greater Tulsa
EIN 730566979 · Headquarters: TULSA, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Honobia Bigfoot Organization Inc
EIN 043820538 · Headquarters: Honobia, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Honor Society of Phi Kappa Phi
EIN 621784001 · Headquarters: TULSA, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N