Unknown & Unclassified nonprofits
Unknown & Unclassified nonprofits. Browse 557,756 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
- Oscher & Celina Majewski Family Trust
EIN 826726886 · Headquarters: UPPER BROOKVILLE, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Osco Employees Health & Welfare Trust
EIN 311080897 · Headquarters: PORTSMOUTH, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osco Industries Foundation
EIN 316025158 · Headquarters: PORTSMOUTH, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Osco-savon Alumni Club Inc
EIN 363850172 · Headquarters: Lombard, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oscoda Area Conv & Visitors Bureau
EIN 382656402 · Headquarters: OSCODA, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oscoda Area United Way
EIN 237134135 · Headquarters: Oscoda, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Oscoda Ausable Chamber of Commerce
EIN 382034186 · Headquarters: OSCODA, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Oscoda County Council on Aging
EIN 382045047 · Headquarters: MIO, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oscoda-wurtsmith Airport Authority
EIN 383188103 · Headquarters: OSCODA, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oscoluwa Engine & Hose Co Inc
EIN 236297608 · Headquarters: TROY, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- OSCPA Educational Foundation
EIN 930889479 · Headquarters: Beaverton, OR, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- OSCRE International Ltd
EIN 460524844 · Headquarters: Orlando, FL, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990
- Osdia Buoni Amici Lodge 3021 Inc
EIN 412677137 · Headquarters: Newnan, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oseikrom Charity Foundation Inc
EIN 392611192 · Headquarters: SILVER SPRING, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oser Braun Foundation for the Visually Impaired Inc
EIN 133330428 · Headquarters: ROSLYN HEIGHTS, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Osf Genprof Liability
EIN 371035542 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990
- Osgood Area Life Squad
EIN 341311179 · Headquarters: OSGOOD, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osgood Ave Neighborhood Fellowship Association Inc
EIN 133888431 · Headquarters: STATEN ISLAND, NY, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Osgood Canal Company C/o Blaine Sanderson
EIN 942750886 · Headquarters: IDAHO FALLS, ID, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Osgood Community Homes Inc
EIN 351381135 · Headquarters: OSGOOD, IN, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Osgood Lodge 48 Grand Lodge of Nh Independent Order of Odd Fellows
EIN 026004656 · Headquarters: PORTSMOUTH, NH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osgood Volunteer Fire Department
EIN 351554776 · Headquarters: Osgood, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osh Tv International
EIN 383853943 · Headquarters: Federal Way, WA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Oshe Paksh Foundation
EIN 260185538 · Headquarters: Brooklyn, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Osher Lifelong Learning Institute at American University
EIN 521636891 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osher Lifelong Learning Institute at Uah Inc
EIN 631140091 · Headquarters: HUNTSVILLE, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oshkosh Area Economic Development Corporation
EIN 391622920 · Headquarters: OSHKOSH, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oshkosh Area United Way Inc
EIN 391017908 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oshkosh Area Womens Alliance
EIN 274548869 · Headquarters: Omro, WI, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Oshkosh Area Womens Association Inc
EIN 391857259 · Headquarters: OSHKOSH, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oshkosh Chamber of Commerce
EIN 930765817 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oshkosh Chamber Singers Incorporated
EIN 391590753 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oshkosh Comm Ymca Unrestricted
EIN 396084455 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Oshkosh Convention & Visitors Bureau Inc
EIN 391845587 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oshkosh Corporation Foundation Inc
EIN 396062129 · Headquarters: Oshkosh, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Oshkosh Education Association
EIN 237083797 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oshkosh Fine Arts Association Inc
EIN 391230713 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oshkosh Gun Club Inc
EIN 396088383 · Headquarters: Oshkosh, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Oshkosh Ice Hawks Hockey Boosters Inc
EIN 850949844 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oshkosh Kennel Club Inc
EIN 396078547 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oshkosh on the Water
EIN 391709055 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oshkosh Paraprofessional Education Association
EIN 391493600 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oshkosh Philatelic Society
EIN 364798592 · Headquarters: Kimberly, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oshkosh Power Boat Club
EIN 390981448 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oshkosh Sawdust Days Inc
EIN 391196423 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Oshkosh Senior Softball
EIN 391736491 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oshkosh Ultralight Flyers Inc
EIN 391651372 · Headquarters: WINNECONNE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oshkosh Yacht Club Inc
EIN 391524317 · Headquarters: Oshkosh, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oshman Family Jewish Community Center
EIN 770185734 · Headquarters: PALO ALTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oshman Foundation
EIN 746039864 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Osho Guru Kripa
EIN 320856495 · Headquarters: HAYWARD, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Osi Research and Education Corporation
EIN 465419909 · Headquarters: NORTH KANSAS CITY, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- OSIA Lodge 2662
EIN 570961324 · Headquarters: Myrtle Beach, SC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Osia Northeast Lodge 610
EIN 920629922 · Headquarters: PHILADELPHIA, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Osia of Tidewater Inc
EIN 541024099 · Headquarters: VIRGINIA BEACH, VA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Osiecki Family Foundation Inc
EIN 810895297 · Headquarters: RACINE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Osiris Country Club Inc
EIN 141275766 · Headquarters: Walden, NY, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990
- Osiris Shriners
EIN 550248062 · Headquarters: WHEELING, WV, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osiris Shriners Group Return
EIN 310927700 · Headquarters: WHEELING, WV, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osiris-pentalpha Lodge #23 Faam
EIN 530173838 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990
- Osk Inc
EIN 874416174 · Headquarters: LYNN HAVEN, FL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Oskaloosa Band Boosters Inc
EIN 237209661 · Headquarters: OSKALOOSA, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Oskaloosa Community Theater Inc
EIN 427400859 · Headquarters: Oskaloosa, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oskaloosa Education Association
EIN 237100129 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oskaloosa Education Foundation Incorporated
EIN 421421563 · Headquarters: Oskaloosa, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oskaloosa High School Orchestra Boosters
EIN 421511525 · Headquarters: Oskaloosa, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Oskaloosa Retirement Homes Inc C/o Keyway Management Company
EIN 421081648 · Headquarters: WEST DES MOINES, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oskaloosa Rotary Chapter of Rotary International
EIN 426081201 · Headquarters: OSKALOOSA, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Oskaloosa Support Staff Association
EIN 421342080 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Osler Institute Inc
EIN 351542793 · Headquarters: Terre Haute, IN, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Oslo Jolly Seniors Inc
EIN 411429024 · Headquarters: OSLO, MN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Oslo Lions Club
EIN 510151935 · Headquarters: OSLO, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osman Foundation
EIN 461319782 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Osman Shriners
EIN 410123087 · Headquarters: SAINT PAUL, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osman Shriners Group
EIN 510162535 · Headquarters: SAINT PAUL, MN, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990
- Osmania University Medical Alumni Association Of
EIN 521612092 · Headquarters: Stockton, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osmanli Properties Llc
EIN 461483970 · Headquarters: FRANKLIN, NY, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Osmond General Hospital
EIN 237161473 · Headquarters: OSMOND, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osmond Senior Citizens Inc
EIN 470599938 · Headquarters: Osmond, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Osna Inc
EIN 821654384 · Headquarters: St Petersburg, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Osnabrock Community Living Center
EIN 461687930 · Headquarters: OSNABROCK, ND, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osnabrock Fire Department
EIN 450370045 · Headquarters: OSNABROCK, ND, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Osnaburg Historical Society
EIN 341549492 · Headquarters: East Canton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oso Grande Elementary School PTA California Congress
EIN 161726166 · Headquarters: Ladera Ranch, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oso Little Miss Kickball Inc
EIN 383753749 · Headquarters: CORPUS CHRISTI, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Oso Valley Greenbelt Association
EIN 953127903 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Osogbo Progressive Union Philadelphia Chapter
EIN 471721385 · Headquarters: PHILA, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ospoa Members Foundation
EIN 884296201 · Headquarters: SALEM, OR, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Osprey Landing Water Users Associat Ion
EIN 393926049 · Headquarters: Manila, UT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Osseo Area Economic Development Corp
EIN 391615693 · Headquarters: Osseo, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Osseo Book Club Inc
EIN 931532316 · Headquarters: ROBBINSDALE, MN, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Osseo Cemetery Association
EIN 390848895 · Headquarters: OSSEO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Osseo Commercial Club Inc
EIN 396078582 · Headquarters: Osseo, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Osseo Housing Inc
EIN 391187696 · Headquarters: OSSEO, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Osseo Rod & Gun Inc
EIN 391190981 · Headquarters: OSSEO, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Osseo-fairchild Education Association
EIN 237086056 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Osseo-fairchild Support Education Association
EIN 371568531 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Osseointegration Foundation
EIN 363773538 · Headquarters: ARLINGTON HEIGHTS, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ossian Conservation Club Inc
EIN 356043736 · Headquarters: OSSIAN, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ossian Housing Inc
EIN 237445079 · Headquarters: VOLGA, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ