Unknown & Unclassified nonprofits in Washington
Unknown & Unclassified nonprofits in Washington. Browse 12,928 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
- Olympia Master Builders
EIN 916056428 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Olympia Orchid Society
EIN 010964743 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Olympia Outboard Boating Club
EIN 916057707 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Olympia Poetry Network
EIN 911645361 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympia Ski Club
EIN 916056240 · Headquarters: Tacoma, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olympia Ski Group
EIN 911934465 · Headquarters: OLYMPIA, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olympia Street Rod Association
EIN 911473000 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympia Symphony Orchestra
EIN 916087694 · Headquarters: Olympia, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Olympia Tumwater Foundation
EIN 910741161 · Headquarters: Tumwater, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Olympia University of Business & Technology
EIN 820985289 · Headquarters: OLYMPIA, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympia Weavers Guild
EIN 911149506 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympia Wooden Boat Festival
EIN 331582866 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Olympia Yacht Club
EIN 910346680 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Olympia Yacht Club Anchorettes
EIN 911532738 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Olympians Inc
EIN 916037502 · Headquarters: Hoquiam, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympic Ballet Theatre
EIN 237150349 · Headquarters: Edmonds, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Olympic Classic Thunderbird Club
EIN 911312791 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympic Climate Action
EIN 364865255 · Headquarters: Port Angeles, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympic Collectible Expo
EIN 813264680 · Headquarters: Silverdale, WA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Olympic Fly Fishers
EIN 263123924 · Headquarters: EDMONDS, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olympic High School Scholarship Fund Class of 1985
EIN 271655883 · Headquarters: Bremerton, WA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Olympic Lodge 37 Sons of Norway Building Association
EIN 911317151 · Headquarters: PORT ANGELES, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympic Logging Conference
EIN 910849584 · Headquarters: KALAMA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Olympic Massif Equine Network
EIN 472354365 · Headquarters: Port Angeles, WA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Olympic Medical Center Foundation
EIN 911285758 · Headquarters: PORT ANGELES, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Olympic Mountain Rescue
EIN 911000954 · Headquarters: BREMERTON, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Olympic Music Festival
EIN 911061147 · Headquarters: PORT TOWNSEND, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Olympic Peninsula Audubon Society
EIN 237258536 · Headquarters: Sequim, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympic Peninsula Chapter of the Military Officers Asso of America
EIN 911246992 · Headquarters: Sequim, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olympic Peninsula Paddlers Inc
EIN 881325958 · Headquarters: SEQUIM, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Olympic Peninsula Treasure Hunters
EIN 372075229 · Headquarters: Bremerton, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olympic Peninsula Visitor Bureau
EIN 911355604 · Headquarters: PORT ANGELES, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Olympic Shore Water Association
EIN 352484819 · Headquarters: Belfair, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olympic View Swim Club
EIN 910726743 · Headquarters: NORMANDY PARK, WA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- Olympic View Water System
EIN 911169575 · Headquarters: Sequim, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olympic Yacht Club
EIN 911233157 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Olympus I Homeowners Association
EIN 910919481 · Headquarters: MILL CREEK, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Omak Cooperative Preschool
EIN 911549693 · Headquarters: OMAK, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Omak Food Bank
EIN 911190398 · Headquarters: Omak, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Omak Performing Arts Center Foundation
EIN 943084048 · Headquarters: OMAK, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Omak Stampede Inc
EIN 910751069 · Headquarters: Omak, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Omak Visitor Information Center
EIN 943155988 · Headquarters: OMAK, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Omega Phi Inc
EIN 916056334 · Headquarters: PULLMAN, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Omega Theta Xi Associations
EIN 916184957 · Headquarters: GREENACRES, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- On the Boards
EIN 911081983 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990
- On-campus Parent Education
EIN 911391359 · Headquarters: LYNNWOOD, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Onalaska Scholarship Fund
EIN 943068730 · Headquarters: Onalaska, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Once and Future School
EIN 263854613 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- One Bellevue
EIN 823308422 · Headquarters: Bellevue, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- One Nation Votes
EIN 871903217 · Headquarters: VANCOUVER, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- One Payer States Inc
EIN 842480592 · Headquarters: Arlington, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- One to One International
EIN 900744935 · Headquarters: Lynden, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- One to One of Lynden
EIN 910890811 · Headquarters: Lynden, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Onecho Cemetery Association
EIN 916032912 · Headquarters: Colfax, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Open Door Ventures
EIN 911608508 · Headquarters: RENTON, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Open Hands a Non Profit Corporation
EIN 392549205 · Headquarters: BOTHELL, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Open Usage Commons Foundation
EIN 851802866 · Headquarters: BAINBRIDGE ISLAND, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Open Washington
EIN 851352165 · Headquarters: TACOMA, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Open Window School
EIN 911303536 · Headquarters: BELLEVUE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Opera Plus
EIN 471033085 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Operation Mordecai
EIN 853605608 · Headquarters: LYNNWOOD, WA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Operation Uplift
EIN 943031281 · Headquarters: Port Angeles, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Operative Plasterers and Cement Masons 478
EIN 910405894 · Headquarters: SPOKANE, WA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ
- Opportunity Knocks
EIN 364931000 · Headquarters: STEVENSON, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Optimist Club of Northeast Portland
EIN 936028706 · Headquarters: Battle Ground, WA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Optimist International
EIN 812686793 · Headquarters: Fircrest, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Optimist International
EIN 900199596 · Headquarters: REDMOND, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Optimist International
EIN 916057526 · Headquarters: VANCOUVER, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Options Program
EIN 911488108 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Optometric Physicians of Washington
EIN 916056476 · Headquarters: EATONVILLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oracle Hcm User Group Inc
EIN 204309357 · Headquarters: WASHOUGAL, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orca Embassy Salish
EIN 394156613 · Headquarters: Ferndale, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orcas Anthroposophical Trust
EIN 911055024 · Headquarters: SEATTLE, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orcas Community Participatory Agriculture
EIN 473296480 · Headquarters: Eastsound, WA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Orcas Island Chamber of Commerce
EIN 910783237 · Headquarters: Eastsound, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Orcas Island Farm Animal Sanctuary
EIN 863200769 · Headquarters: EASTSOUND, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Orcas Island Food Bank
EIN 911255700 · Headquarters: EASTSOUND, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orcas Island Historical Society
EIN 916054959 · Headquarters: EASTSOUND, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orcas Island Pickleball Club
EIN 932470190 · Headquarters: Eastsound, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orcas Island Pride
EIN 992799111 · Headquarters: eastsound, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orcas Island Sportsmen
EIN 916054960 · Headquarters: EASTSOUND, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orcas Island Yacht Club
EIN 237203210 · Headquarters: Eastsound, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Orcas Landing Inc
EIN 916069288 · Headquarters: Orcas, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Orcas Longhouse
EIN 911145647 · Headquarters: EASTSOUND, WA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Orcas Open Arts
EIN 943164084 · Headquarters: Eastsound, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orcas Power & Light Cooperative
EIN 910348358 · Headquarters: Eastsound, WA, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Orchard Beach Community Group
EIN 874760978 · Headquarters: Grapeview, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orchard Heights Parent Teacher Student Organization
EIN 510184407 · Headquarters: Port Orchard, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orchard Hills Golf & Country Club
EIN 910486960 · Headquarters: Washougal, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Orchard Water Association
EIN 916054961 · Headquarters: Ferndale, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orchestra of Flight
EIN 911576946 · Headquarters: Renton, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orchestra Seattle - Seattle Chamber Singer
EIN 911119968 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Order of Eastern Star Washington and Jurisdiction
EIN 237446548 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Order of the Amaranth Inc
EIN 237614533 · Headquarters: Everett, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Order of the Amaranth Inc
EIN 237614535 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Order of the Amaranth Inc
EIN 237614669 · Headquarters: Richland, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Order of the Amaranth Inc
EIN 237614674 · Headquarters: PORT ORCHARD, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Order of the Amaranth Inc
EIN 237614676 · Headquarters: Longview, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Order of the Amaranth Inc
EIN 237614677 · Headquarters: Tumwater, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Order of the Amaranth Inc
EIN 237614690 · Headquarters: Union, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N