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Data / Nonprofits / Washington / Mutual and membership benefit

Mutual and membership benefit nonprofits in Washington: 376 registered with the IRS

376 mutual and membership benefit nonprofits are registered with the IRS in Washington, 39 of them 501(c)(3) charities; the 149 that report revenue took in $2.16 billion. The most are in Seattle (40), Spokane (32), Mukilteo (16). The largest by revenue: Seiu Healthcare NW Health Benefits Trust ($504.1 million), Voluntary Employees Beneficiary Assoc Trust for Pub Empl State of Wa ($227 million), Asea-Afscme Local 52 Health Benefits Trust ($193.3 million).

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Every organization, largest by revenue first

OrganizationCityTypeSinceRevenueAssetsFiling
Seiu Healthcare NW Health Benefits TrustSeattle501(c)(9)2007$504.1 million$588.2 million2025-06
Voluntary Employees Beneficiary Assoc Trust for Pub Empl State of WaSpokane501(c)(9)1992$227 million$1.24 billion2025-09
Asea-Afscme Local 52 Health Benefits TrustBothell501(c)(9)2002$193.3 million$257.5 million2025-06
Business Health TrustMukilteo501(c)(9)2013$152.9 million$18.9 million2024-12
Voluntary Employees Benefit Association Trust for PublicSpokane501(c)(9)1984$129.4 million$651.2 million2025-06
Northwest Fire Fighters Benefits TrustMukilteo501(c)(9)2015$124.5 million$57.1 million2024-12
Law Enforcement Officers & Fire Fighters Health and Welfare TrustSpokane501(c)(9)1987$83.5 million$34.9 million2025-12
Oregon Essential Workforce Health Care FundSeattle501(c)(9)2023$57 million$102.3 million2024-12
Portage Bay InsuranceSeattle501(c)(3)2005$55.6 million$187.4 million2024-06
Omnitrade Health TrustMukilteo501(c)(9)2014$54.7 million$1.5 million2024-12
Seattle Fire Fighters Union Local 27 Welfare TrustMukilteo501(c)(9)2004$41.1 million$80.9 million2024-12
Health Alliance for Technology Health TrustSpokane501(c)(9)2017$35.8 million$1.8 million2024-12
Washington Software Alliance Employee Benefit TrustMukilteo501(c)(9)2009$34.7 million$2.6 million2024-12
Snohomish County Pud Voluntary Employees Beneficiary AssociationEverett501(c)(9)2001$32.4 million$12.7 million2024-12
Washington Farm Bureau Health Care TrustSpokane501(c)(9)2006$29.9 million$6 million2024-12
Washington Commercial Construction Health TrustSpokane501(c)(9)2016$27.3 million$2.2 million2024-12
Washington Automotive Industry Association Health TrustMukilteo501(c)(9)2017$27 million$2.3 million2024-12
State of Indiana Health Reimbursement Arrangement HraSpokane501(c)(9)2005$26.5 million$342.6 million2024-12
Boise Fire & Police TrustMukilteo501(c)(9)2014$26.3 million$36.7 million2025-12
Northwest Financial Associations EbtTacoma501(c)(9)2009$23.6 million$4.2 million2024-12
Operating Engineers Trust Fund H & W Plan Public Employers DivisionBothell501(c)(9)1999$20.9 million$25.4 million2024-12
Iaff Local 726 Health and Welfare TrustMukilteo501(c)(9)2016$20.5 million$13.6 million2024-12
Center for Advanced Manufacturing Puget Sound Camps Healthcare TrusBellevue501(c)(9)2022$20.3 million$2.9 million2025-09
Vigilant Manufacturers TrustSeattle501(c)(9)2019$18.1 million$2.1 million2025-09
Washington Surveying & Rating BureauSeattle501(c)(6)2002$15.7 million$12.1 million2025-12
Northwest Marine Trade Association Health TrustBellevue501(c)(9)2015$15.1 million$1.7 million2024-12
Alaska Airlines 501C9 Welfare TrustSeattle501(c)(9)2011$14.3 million$12.9 million2024-12
Spokane Fire Firghters Benefit TrustSeattle501(c)(9)2015$13.8 million$43.2 million2024-12
Washington Business Services Health TrustSpokane501(c)(9)2016$11.7 million$1 million2024-12
Leisure Care Health Benefits TrustSeattle501(c)(9)2022$11.7 million$47,1792025-09
Associated General Contractors Health Benefit Trust Ak Wa ChaptersMukilteo501(c)(9)2016$10.3 million$1.5 million2024-12
Vancouver Firefighters Union Health and Welfare TrustVancouver501(c)(9)2014$9.5 million$13.7 million2025-09
Arizona Technology Council Employee Benefit TrustSeattle501(c)(9)2021$9.2 million$392,6782024-12
Washington Retail Health TrustSpokane501(c)(9)2016$6 million$560,9552024-12
Seiu Local 105 Health and Welfare Trust FundSeattle501(c)(9)2010$5.3 million$1.7 million2024-12
Gig Harbor Firefighters Union Health & Welfare TrustGig Harbor501(c)(9)2015$4.8 million$12.5 million2025-10
State of Montana Voluntary Employee Beneficiary Association HealthSpokane501(c)(9)2003$4.5 million$22.6 million2025-12
Cowles Company Medical Plan Veba TrustSpokane501(c)(9)2008$4.4 million$3.2 million2024-12
Portland Police Association Retiree Health Plan and TrustSpokane501(c)(9)2001$4.3 million$39.8 million2025-12
Washington Manufacturing Health TrustSpokane501(c)(9)2016$4.1 million$287,7212024-12
Oxnard Peace Officers Association Retiree Medical TrustMukilteo501(c)(9)2006$4.1 million$45.2 million2025-06
Vigilant Manufacturers Trust of ArizonaSeattle501(c)(9)2020$2.8 million$58,9122024-12
City of Auburn Veba TrustAuburn501(c)(9)2018$2.4 million$18.6 million2024-12
Seattle Police Offers Guild Benefit TrustSeattle501(c)(9)2014$2.1 million$6 million2024-12
Redwood Empire Public Safety Medical TrustSpokane501(c)(9)2009$2 million$14.4 million2025-06
City of Everett Veba TrustEverett501(c)(9)2021$2 million$4.5 million2023-12
Pasadena Police Retired Medical TrustMukilteo501(c)(9)2000$1.9 million$25.1 million2024-12
Community College Employees Benefit TrustMukilteo501(c)(9)2007$1.9 million$20 million2025-06
City of Kirkland Veba TrustKirkland501(c)(9)2017$1.8 million$9.3 million2025-12
Fontana Police Officers Association Retiree Medical TrustSpokane501(c)(9)2011$1.6 million$15.1 million2025-06
Cawa Arizona Health TrustMukilteo501(c)(9)2024$1.4 million$95,0042024-12
Santa Monica Firefighters Health Benefit TrustSeattle501(c)(9)2003$1.3 million$13.1 million2024-12
Retirement Security Fund Veba Hra TrustMukilteo501(c)(9)2023$1.3 million$1.8 million2023-12
Pasadena Fire Fighters Association Benefit TrustMukilteo501(c)(9)1999$1.2 million$9.2 million2024-12
Electrical Workers Veba TrustSpokane501(c)(9)2009$1.2 million$536,8062025-12
Southern Calif Pub Safety Retireemedical TrustSpokane501(c)(9)2008$914,644$9 million2025-01
Naches Cowiche Canal AssociationYakima501(c)(12)2021$884,930$773,5922025-12
Century Aluminum Hawesville Retiree Health Care Reimbursement TrustSpokane501(c)(9)2014$790,170$16 million2024-12
House of Mercy All-Muslim CemeteryCovington501(c)(13)2003$766,674$2.6 million2024-12
Rochester Water AssociationRochester501(c)(12)2005$758,103$1.4 million2025-12
Accra-Fab Inc Employee Benefits TrustLiberty Lake501(c)(9)2012$757,102$98,3812025-12
Healthinvest Hra Veba TRST for Public Emp in State of Ca NV & AzSpokane501(c)(9)2022$689,216$2.6 million2024-12
Fraternal Order of EaglesBurien501(c)(8)1991$603,179$60,6002024-05
Pacific Northwest Hospitality Training ProgramSeattle501(c)(9)2019$595,191$3.3 million2024-12
City of Mount Vernon Veba TrustMount Vernon501(c)(9)2018$591,225$1.7 million2024-12
Burton Water CooperativeVashon501(c)(12)2025$563,313$2.1 million2025-12
Independent Order of Odd FellowsTumwater501(c)(13)2017$542,470$2.2 million2024-12
Healthinvest Hra Veba Trst-Trace IncorporatedSpokane501(c)(9)2022$529,869$1.5 million2024-12
City of Bothell - Bargained Employees TrustBothell501(c)(9)2020$486,059$2.6 million2024-12
Washington Alpha Alumni & Voulnteer AssociationBellevue501(c)(7)2019$453,136$1.9 million2025-12
Healthinvest Hra Veba TRST for Public Emp in State of Ne & ContigSpokane501(c)(9)2020$446,993$1.1 million2024-12
Muslim Association of N WMountlake Ter501(c)(3)1995$445,490$2.6 million2024-12
Fraternal Order of EaglesStevenson501(c)(8)1991$423,998$296,4122025-05
EthioedirSeattle501(c)(12)2019$387,660$1.5 million2024-12
Fraternal Order of EaglesPasco501(c)(8)1991$383,777$117,9762026-05
Admin Committee of Chelan County Public Utlty Dist Retirees BNFT PLWenatchee501(c)(9)2008$370,812$882,8802025-12
Onamac Maintenance AssociationStanwood501(c)(12)2015$353,599$2.4 million2026-04
Alpha Theta Delta Alumni Building AssociationSeattle501(c)(7)2010$352,060$3 million2024-12
Fraternal Order of EaglesIssaquah501(c)(8)1991$341,334$410,3572025-05
Fraternal Order of EaglesProsser501(c)(8)1991$325,810$410,4572025-05
Fraternal Order of EaglesOroville501(c)(8)1991$297,039$311,9212024-05
City of Edmonds Veba TrustEdmonds501(c)(9)2020$273,849$1.1 million2024-12
Deming Logging Show IncDeming501(c)(3)1967$273,645$1.4 million2025-08
Clear Lake Water Users AssociationMedical Lake501(c)(12)2019$256,612$835,1302025-12
Fraternal Order of EaglesVashon501(c)(8)1991$255,686$293,4662025-05
Loyal Order of Moose Lodge 1925Quincy501(c)(8)2013$235,216$160,6662025-04
Mount Vernon Masonic Building AssociationMount Vernon501(c)(10)2014$230,313$138,1972024-12
Service Employees International Union - Local 721 Santa Ana MedicaBothell501(c)(9)2022$218,960$1.4 million2024-12
Phi Sigma Kappa - Chi DeuteronPullman501(c)(7)2019$204,700$61,5322025-12
Arnps UnitedAuburn501(c)(6)1999$193,042$66,3242025-12
Fraternal Order of EaglesTwisp501(c)(8)1991$187,500$244,5162025-05
Hemmi Road Water Association IncEverson501(c)(12)2000$185,182$979,1962026-02
National Association of Letter CarriersCastle Rock501(c)(5)2025$184,519$244,5172025-06
Chua Phap HoaKent501(c)(3)2021$184,130$28,3132025-12
Pioneer Memorial Gardens CemeteryMoses Lake501(c)(13)2024$167,378$600,0002024-12
Dugualla Community IncOak Harbor501(c)(12)2002$165,854$1.2 million2025-05
Fraternal Order of EaglesRitzville501(c)(8)1991$164,811$9,1562025-05
Hide-Away Water Company IncOak Harbor501(c)(12)2001$159,954$865,6192025-09
Fraternal Order of EaglesTenino501(c)(8)1991$159,272$545,8722025-05
Hawaiian Airlines Inc Pilots Voluntary Employee BeneficiarySeattle501(c)(9)2007$150,191$48 million2024-12
Herland ForestWahkiacus501(c)(13)2022$148,583$330,3422024-12
El 22-1 Landowners AssociationMoses Lake501(c)(12)2021$135,149$17,8772025-12
Combined Water SystemStanwood501(c)(12)2012$134,330$1.1 million2025-12
Bellingham Lodge No 493 Loyal Order of MooseBellingham501(c)(8)2016$126,198$65,9242025-04
Cofederated Tribes of the Colville Reservation Veba Health SavingsNespelem501(c)(9)2020$121,000$324,6232025-12
City of Kent Veba-Hra TrustKent501(c)(9)2021$109,819$231,4252025-12
Phoenix Temple CorporationSumner501(c)(2)2026$107,217$754,8922025-12
Gove Lodge CompanyTacoma501(c)(2)2014$102,338$468,8032024-12
Lake Wenatchee Fire & Rescue Auxill AryLeavenworth501(c)(3)2014$102,117$9,5472025-04
Mountain View Water Association of FerndaleFerndale501(c)(12)2012$101,642$188,6692025-10
Forest BeachGig Harbor501(c)(12)2011$99,870$391,5442025-12
Fraternal Order of Eagles AerieKennewick501(c)(8)2025$96,994$12,0182024-05
Goldenrod Cemetery Perpetual Care Endowment FundTekoa501(c)(3)2018$89,749$3.4 million2025-12
Deming Water AssociationDeming501(c)(12)2011$86,973$992,8422025-12
South Bay Hotel Employees Restaurant Employees Legal FundSeattle501(c)(9)2007$84,343$1.3 million2024-12
Holy Rosary Cemetery FoundationMoxee501(c)(13)2014$83,644$557,4732026-06
St Marys Columbus ClubSpokane Vly501(c)(3)2017$78,116$601,8712025-12
Livingston Bay Community AssociationStanwood501(c)(12)2011$77,983$157,5432025-12
Aldergrove Water AssociationLynden501(c)(12)2015$70,845$617,7442025-12
Free & Accepted Masons of WashingtonTacoma501(c)(10)1941$70,120$1.1 million2024-12
Union Cemetery Association of Lopez IslandLopez Island501(c)(13)2012$66,979$565,2182025-12
Global Solidarity Network SeattleShoreline501(c)(4)2024$64,585$12025-12
Long Point Water Company IncOak Harbor501(c)(12)2019$64,545$939,8392025-12
Independent Order of Odd FellowsSeattle501(c)(8)1962$62,842$2.3 million2025-04
Hillcrest Water Users AssociationMoses Lake501(c)(12)2003$61,865$149,5952025-09
Cascade Bridge LLC Ins Premium TrustVancouver501(c)(9)2016$61,798$167,6962025-12
Tukwila School District Integrated Hra TrustTukwila501(c)(9)2017$59,054$446,0572024-08
Wilkshire Lane Water District IncArlington501(c)(12)2025$58,543$164,6682020-12
Ellensburg Moose Lodge 494 Loyal Order of MooseEllensburg501(c)(8)2025$50,455$7,5722024-04
Sons of Italy in AmericaSeattle501(c)(8)2016$50,400$169,5472025-06
Wilbur Cemetery AssociationWilbur501(c)(3)1992$45,838$792,3632025-12
L&S FoundationVancouver501(c)(3)2023$45,342$17,1512024-12
San Juan Building AssociationFriday Harbor501(c)(6)2025$45,219$46,4832025-12
Veterans of Foreign Wars Ira L Cater Post 318Olympia501(c)(19)2026$40,692$1 million2025-12
Free & Accepted Masons of WashingtonMercer Island501(c)(10)1941$38,778$1.4 million2025-12
Green Lake Masonic AssociationSeattle501(c)(2)2014$34,125$441,4642025-12
Association of Women and Minority B UsinessesFederal Way501(c)(6)2026$33,720$65,4842025-12
Woodland Industrial Storm Water AssociationLa Center501(c)(4)2001$24,822$10,9882024-12
Marshall Cemetary AssociationSpokane501(c)(13)2002$22,940$82,5802024-12
Seattle Black Firefighters AssociationBurien501(c)(5)2022$18,795$762,6542023-12
Quilcene Jefferson Masonic Hall Ass OciationQuilcene501(c)(2)2026$12,950$9202021-12
Free & Accepted Masons of WashingtonSeattle501(c)(10)1941$10,028$776,9362025-12
McAulays Home Sites Water Users IncYakima501(c)(12)2012$8,160$5,9162025-12
Pitcher Canyon Water Users AssociationWenatchee501(c)(12)2017$6,445$9,5272025-12
Knights of ColumbusClyde Hill501(c)(8)1940$5,655$59,3912025-12
Puget Sound Moose Legion No 91Bellingham501(c)(8)2014$1,393$3102025-04
Whidbeyhealth Ems Veba TrustCoupeville501(c)(9)2024$506$119,9102024-12
Cedar Health TrustTacoma501(c)(9)2021$310$49,4222024-12
Acaladi Water AssociationStanwood501(c)(12)2014$0$02026-06
Acf Chefs de Cuisine of the Inland NorthwestSpokane501(c)(6)2013$0$02025-12
Agr Sigma Alumni FoundationRosalia501(c)(3)2019$123,5262024-12
Always Having Fun FoundationMaple Valley501(c)(3)2017$0$02024-12
American Legion Auxiliary Post 24Garfield501(c)(3)2022$0$02025-12
American-Vietnamese War Memorial AllianceTumwater501(c)(3)2014$0$02025-12
Ardenbrook Water AssociationColville501(c)(12)2012$0$02025-12
Arrow Place AssociationMoses Lake501(c)(12)2014$0$02025-12
Asociacion of Celebration Community Church of GuanacastePort Orchard501(c)(3)2015
Auburn Police Officers AssociationAuburn501(c)(3)2015$0$02025-12
Bellingham@connection ClubBellingham501(c)(7)2025
Benson Creek Irrigation Water Users AssociationTwisp501(c)(12)2015$0$02025-12
Benton Franklin Juvenile Court GuildKennewick501(c)(5)2014$0$02025-12
Benton Franklin School Retirees AssociationKennewick501(c)(4)2010$0$02026-06
Bethel Cemetery AssociationSteptoe501(c)(13)2002$0$02025-12
Bethel Ranchettes Mutual Water CompanyPuyallup501(c)(12)2015$0$02025-12
Blessings MothersLacey501(c)(3)2025$0$02025-12
Boeing Employees Model Railroad ClubBurien501(c)(4)2009$0$02025-12
Bolduc Community Association IncOlympia501(c)(12)2023$0$02023-07
Brandt Point Water SystemSequim501(c)(12)2016$0$02025-12
Bremerton Friendship Lodge No 145 IoofSilverdale501(c)(8)2023$0$02023-12
Brenda Terrace Waterusers AssociationYakima501(c)(12)2012$0$02025-12
Brooklynn ProjectSpokane501(c)(3)2018$0$02025-12
Brown-Taylor Water Co IncSelah501(c)(12)2012$0$02025-12
Burlington Police Employees GuildBurlington501(c)(8)2025
Bush Point Tracpark Water AssociationFreeland501(c)(12)2019$0$02025-12
Butterfield Water Company IncYakima501(c)(12)2015$0$02025-12
CCD IrrigatorsCarlsborg501(c)(12)2017$0$02025-12
Cascade Valley Hospital Employee Booster AssociationArlington501(c)(4)2014$0$02024-12
Churchill Water CorportionBainbridge Is501(c)(12)2017$0$02025-12
Clark County Dental SocietyVancouver501(c)(6)2009$0$02024-12
Cle Elum Veterans Memorial FundS Cle Elum501(c)(3)2016$0$02025-12
Clearwater Domestic Water Assoc IncPasco501(c)(12)2013$0$02025-12
Clifton Beach Tracts Coop Water AssocBelfair501(c)(12)2011$0$02026-07
Columbiettes IncorporatedPuyallup501(c)(10)1977$0$02026-08
Compass and Chart SocietySeattle501(c)(7)2025$0$02025-06
Crestview West Water SystemKent501(c)(12)2014$0$02024-12
Croatian Fraternal Union of AmericaCle Elum501(c)(8)1941$0$02025-12
Crown Hill Business AssociationSeattle501(c)(6)2014$0$02025-12
Dartford Cemetery AssociationSpokane501(c)(13)2020$0$02025-12
Daughters of NorwaySpokane501(c)(8)1991$0$02025-12
Davenport Gun and Game ClubDavenport501(c)(6)2014$0$02025-12
Donovans Plat Water AssociationSoap Lake501(c)(12)2013$0$02025-12
E A A Chapter 1111Kelso501(c)(3)2013$0$02025-12
Early Winters Ditch AssociationWinthrop501(c)(12)2023$0$02024-12
Elderwood Water AssociationIssaquah501(c)(12)2000$0$02025-12
Ephrata Alumni AssociationEphrata501(c)(3)2014$0$02025-12
Estate Planning Coucil of Clark CoVancouver501(c)(6)2016$0$02025-06
Fairview Cemetery AssociationSpokane Vly501(c)(13)2001$0$02025-12
Fairview Domestic Water AssociationOthello501(c)(12)2012$0$02025-12
FaithlyPuyallup501(c)(3)2018$0$02024-03
Ferndale Police AssociationFerndale501(c)(10)2015$0$02025-12
Fields Water Assoc IncStanwood501(c)(12)2011$0$02025-09
Fircrest Water AssociationOak Harbor501(c)(12)2026
Forest Grove Cemetery AssociationOlympia501(c)(13)2012$0$02025-12
Forest Grove Mausoleum Association IncTenino501(c)(13)2014$0$02025-12
Fort Nugent Water AssociationOak Harbor501(c)(12)2013$0$02025-12
Fowler Ditch AssociationMoxee501(c)(12)2023$0$22,7582025-12
Franklin County Cattlemens AssociationMesa501(c)(5)2014$0$02025-12
Fraternal Order of EaglesEverett501(c)(8)1991$0$02025-05
Fraternal Order of EaglesSedro Woolley501(c)(8)1991$0$02026-05
Fraternal Order of EaglesEatonville501(c)(8)1991$0$02025-05
Free & Accepted Masons of WashingtonEdmonds501(c)(10)1941$0$02025-12
Free & Accepted Masons of WashingtonCovington501(c)(10)1941$0$02025-12
Free & Accepted Masons of WashingtonArlington501(c)(10)1941$0$02026-04
Free & Accepted Masons of WashingtonWaverly501(c)(10)1941$0$02025-04
Free and Accepted Masons of WashingtonKent501(c)(10)1941$0$02025-12
Free and Accepted Masons of WashingtonSunnyside501(c)(10)1941$0$02025-12
Freeborn CemeteryStanwood501(c)(13)2018$0$02025-12
G W Mabel Smith Cemetery AssociationProsser501(c)(13)2015$0$02025-12
Gran Oriente Filipino of the Pacific Northwest CorporationMountlake Ter501(c)(10)2025$0$02025-10
Green River Valley Lodge 27 Fraternal Order of PoliceAuburn501(c)(8)2017$0$02025-12
Guler Irrigation Co IncTrout Lake501(c)(12)2021$0$02025-12
Hamilton Cemetery AssociationLyman501(c)(13)2012$0$02025-12
Hamilton Historic Memorial Cemetery GroupWenatchee501(c)(13)2026
Hamilton Memorial Cemetery TrustWenatchee501(c)(4)2024$0$02024-12
Hansville Helping Hands & Cemetery AssociationHansville501(c)(13)2004$0$02025-12
Highland Trace Water Company IncOak Harbor501(c)(12)2011$0$02025-12
Homeowners of 1011 North 50TH StreetSeattle501(c)(4)2014$0$02026-06
Huckleberry Hill Water System Homeowners AssociationVashon501(c)(12)2012$0$02025-12
Human Factors and Ergonomics Society Puget Sound ChapterSammamish501(c)(6)2007$0$02025-12
II Stevens LodgeColville501(c)(10)2025$0$02026-06
Iaff Local 1352 Benevolent FundAuburn501(c)(3)2018$0$02025-12
Iaff Local 3740 Skyway Fire Fighters AssociationSeattle501(c)(5)2026$0$02025-12
Icai Seattle ChapterBothell501(c)(3)2024$0$02025-12
Kessinger Water SystemPoulsbo501(c)(12)2020$0$02025-12
Kiona-Benton Cemetery AssociationBenton City501(c)(13)1932$0$02025-12
Kittitas County Cemetery Dist 1Thorp501(c)(13)2014$0$02025-12
Knights of ColumbiaYakima501(c)(8)1940$0$02025-12
Knights of ColumbusSeattle501(c)(8)1940$0$02025-12
Knights of ColumbusVancouver501(c)(8)1940$0$02025-12
Knights of ColumbusSpokane Vly501(c)(8)1940$0$02025-12
Knights of ColumbusSpokane501(c)(8)1940$0$02025-12
Knights of ColumbusSpokane501(c)(8)1940$0$02025-12
Knights of ColumbusPasco501(c)(8)1940$0$02025-12
Knights of ColumbusKent501(c)(8)1940$0$02025-12
Knights of ColumbusBainbridge Is501(c)(8)1940$0$02024-12
Knights of ColumbusTacoma501(c)(8)2026
Knights of ColumbusKennewick501(c)(8)1940$0$02025-12
Knights of ColumbusLongview501(c)(8)1940$0$02025-12
Knights of ColumbusMonroe501(c)(8)1940$0$02025-12
Knights of ColumbusAberdeen501(c)(8)1940$0$02023-12
Knights of ColumbusClinton501(c)(8)1940$0$02025-06
Knights of ColumbusFerndale501(c)(8)1940$0$02024-12
Knights of ColumbusPomeroy501(c)(8)1940$0$02025-12
Knights of ColumbusMalott501(c)(8)1940$0$02025-12
Knights of Columbus North Seattle C Ouncil 5177Seattle501(c)(8)2026
Knights of Pythias of WashingtonNewcastle501(c)(10)2021$0$02025-12
Kuntz Sub Water AssociationYakima501(c)(12)2011$0$02025-12
Lake Bay CemeteryLakebay501(c)(13)2013$0$02025-12
Lake Terril Water Association IncFerndale501(c)(12)1955$0$02025-12
Lakeview Terrace Water AssociationMossyrock501(c)(12)2015$0$02025-12
Local 12 Benevolent FundBremerton501(c)(4)1999$0$02025-12
Lodge of the Lions GateSeattle501(c)(10)2005$0$02024-12
Lone Fir Cemetery AssociationLong Beach501(c)(13)2015$0$02025-12
Longbranch Cemetary AssociationLongbranch501(c)(3)2009$0$02024-04
Malone Water SystemElma501(c)(12)2002$0$02025-12
Martin Creek Community AssociationKettle Falls501(c)(12)2006$0$02024-12
Meadowbrook Water CorporationSequim501(c)(12)2013$0$02024-06
Mecca Community AssociationCamano Island501(c)(12)2025$0$02025-12
Medical Society Healthcare TrustMukilteo501(c)(9)2025
Mercer Island Womens ClubMercer Island501(c)(7)2014$0$02026-05
Mission Creek TractsBelfair501(c)(12)2016$0$02025-12
Monroe Temple AssociationWoodinville501(c)(2)2012$0$02025-12
Mount Si Memorial Cemetery IncNorth Bend501(c)(13)2023$0$02025-12
Mountain View Cemetery of Goldendal EGoldendale501(c)(13)2026
Mountain View Estates Waterusers AssociationEllensburg501(c)(12)2019$0$02025-12
Mutiny Bay Park Water AssociationFreeland501(c)(12)2013$0$02025-12
NW Seabee Ball CommitteeSilverdale501(c)(19)2014$0$02023-04
Naches Cemetery AssociationNaches501(c)(3)2022$0$02025-12
Nalca of USA 202 Tacoma Wa AuxiliaryGraham501(c)(5)2014$0$02023-12
NamcaLake Stevens501(c)(3)2021$0$02025-12
National Association of Real Estate SyndicatorsWoodinville501(c)(3)2025
Newcomers Club of Greater SeattleSeattle501(c)(7)2019$0$02025-09
No 1 Canyon Water AssociationWenatchee501(c)(12)2019$0$02025-12
No Longer VoicelessRedmond501(c)(3)2021$0$02025-12
Northwest Carving AcademyWalla Walla501(c)(4)2010$0$02025-12
Northwest Corner Chapter of Credit UnionsBellingham501(c)(6)2015$0$02023-12
Northwest Council of AirshowsSeattle501(c)(6)2025$0$02025-12
Norway Hall AssociationKelso501(c)(2)2014$0$02024-12
Oak Manor Estates Domestic Water AssociationWalla Walla501(c)(12)2025$0$02025-08
Onalaska Volunteer Firefighters AssociationOnalaska501(c)(3)2021$0$02025-12
Orchard Grove Community Water AssociationMaple Valley501(c)(12)2020$0$02025-12
Order Sons of Italy in America Cataldo Lodge 2280Bremerton501(c)(8)2018$0$02025-12
Outlook Cemetery AssociationOutlook501(c)(13)2001$0$02025-12
Pacific Northwest Fiber ConnectCastle Rock501(c)(6)2025$0$02025-12
Peone Cemetery AssociationSpokane501(c)(13)2011$0$02024-12
Plat L of Lakewood Co-Operative Water AssociationGig Harbor501(c)(12)2022$0$02025-06
Pleasant Prairie CemeterySpokane501(c)(13)2013$0$02024-12
Pleasant Valley Water AssociationFerndale501(c)(12)2013$0$02025-12
Port Blakely Cemetery IncBainbridge Is501(c)(13)2015$0$959,6512025-12
Potlatch Beach Division No 2 Community AssociationSeattle501(c)(12)2002$0$02025-12
Product Management ConsortiumSeattle501(c)(6)2014$0$02024-12
Professional Loadmaster AssociationTacoma501(c)(10)1999$0$02026-03
Professional Loadmaster AssociationTacoma501(c)(10)1999$0$02026-03
Professional Loadmaster AssociationTacoma501(c)(10)1999$0$02026-03
Professional Loadmaster AssociationTacoma501(c)(10)1999$0$02026-03
Professional Loadmaster AssociationTacoma501(c)(10)1999$0$02026-03
Professional Loadmaster AssociationTacoma501(c)(10)1999$0$02025-03
Professional Loadmaster AssociationTacoma501(c)(10)1999$0$02026-03
Quartermaster Heights Water AssociationBurton501(c)(12)2021$0$02025-12
Rainier View Park AdditionLacey501(c)(2)2012$0$02025-12
Rattlesnake Ditch AssociationNaches501(c)(12)2021$0$02025-12
Ridge Water AssociationLummi Island501(c)(12)2025$0$02025-12
Riverbottom Water Users AssociationEllensburg501(c)(12)2025$0$02025-12
Rosewood Cemetery AssociationFairfield501(c)(13)2011$0$02025-12
Rumbolz Sunset Water AssociationSnoqualmie501(c)(12)2010$0$02025-12
Saltese Cemetery AssociationGreenacres501(c)(13)2013$0$02026-05
Scottish Rite Foundation of Washington IncKenmore501(c)(3)1961$9.8 million2025-12
Seattle Artcc Employees AssociationAuburn501(c)(4)2023$0$02025-12
Seattle Finance CollectiveSeattle501(c)(3)2020$0$02025-12
Sigma Alpha Epsilon FraternityTacoma501(c)(7)2025$0$02026-06
Silver Springs Estates Community AssociationStanwood501(c)(12)2014$0$02026-04
Skagit County Sheriffs Office Support Staff GuildMount Vernon501(c)(8)2025$0$02025-12
Skagit Valley Weavers GuildBurlington501(c)(3)2017$0$02026-06
Skyline Ditch Co IncWinthrop501(c)(12)2002$0$02025-12
Skyraider Aero ClubSpokane501(c)(7)2017$0$02025-12
Smugglers Cove Water Users Association IncFriday Harbor501(c)(12)2014$0$02026-06
Snohomish County Firefighters Pipes and DrumsMill Creek501(c)(3)2014$0$02025-12
South Puget Sound Federation of Teachers Local 4603 Aft Afl-CioOlympia501(c)(5)2014$0$02026-06
Spokane Elementary School Principals AssociationSpokane501(c)(5)2007$0$02024-06
St Galls Cemetery AssociationColton501(c)(13)2009$0$02025-12
Stiltner Memorial CemeteryCentralia501(c)(13)2026
Summerset Water AssociationMoses Lake501(c)(12)2020$0$02023-12
Summit Valley Cemetary AssociationAddy501(c)(13)2009$0$02025-12
Sunland Water AssociationVashon501(c)(12)2006$0$02023-12
Sunrise Cove Water Development AssociationLummi Island501(c)(12)2012$0$02025-12
Sunset Acres WaterYakima501(c)(12)2019$0$02025-12
Sunset Acres Water AssociationMoses Lake501(c)(12)2025$0$02025-12
Sunset Beach Water Association IncBelfair501(c)(12)2013$0$02025-12
Supreme Emblem Club of the United States of AmericaGig Harbor501(c)(10)1949$0$02026-06
Suunel Xi Almeru RepublicTukwila501(c)(10)2024
Swauk Cemetery AssociationCle Elum501(c)(13)2014$0$02025-12
TMG CaresVancouver501(c)(3)2016$30,1332024-12
Tall Cedars Water and Maintenance AssociationFerndale501(c)(12)2011$0$02025-09
Taylor Ocean Park CemeteryOcean Park501(c)(13)2004$0$02025-12
Teamsters Local 117 Charities and Scholarship FundTukwila501(c)(3)2024$0$02025-12
Templum BioquantumBellevue501(c)(3)2026$12025-12
The Board of Certified HaircoloristsLake Stevens501(c)(6)2025$0$02025-12
Thurston Mason Dental SocietyOlympia501(c)(6)2025$0$02025-12
Tieton Hills Water UsersYakima501(c)(12)2012$0$02025-12
Titusville Lodge 34Kent501(c)(4)2022$0$02025-12
Treeline Water SystemOak Harbor501(c)(12)2013$0$02024-12
Triangle Improvement GroupEatonville501(c)(12)2013$0$02024-12
Unity Lodge 75 of the Danish Sisterhood of AmericaEnumclaw501(c)(10)2023$0$02025-12
University of Washington Chapter of the Am Assoc of Univ ProfessorsSeattle501(c)(6)2014$0$02025-06
Venersborg Cemetery AssociationBattle Ground501(c)(13)2010$0$02025-12
Vietnamese Community for Mutual Support of Seattle CityRenton501(c)(3)2002$0$02025-12
Washington Association of Professional Pet GroomersPort Orchard501(c)(6)2023$0$02024-12
Washington Cannabusiness Association Healthcare TrustSeattle501(c)(9)2025
Washington State Chapter of AsmbsSeattle501(c)(6)2018$0$02025-12
Washington State Fallen Firefighters Memorial FoundationOlympia501(c)(3)2017$0$02025-12
Washington State Firefighters Spouse and Orphans FundColville501(c)(9)2000$0$02025-12
Washington State GrangeOlympia501(c)(8)2021$0$02025-12
Washington State Outdoor Advertisin G AssociationSeattle501(c)(6)2026$0$02025-12
Washington State Park Rangers AssociationMount Vernon501(c)(5)2023$0$02025-12
Washington Title Insurance Rating OrganizationSeattle501(c)(6)2019$0$02025-12
Washougal Business AssociationVancouver501(c)(3)2014$0$02024-12
Water User Association of Park Addition To the Kettle River SubdiCurlew501(c)(12)2023$0$02024-12
West Beach Road AssociationCoupeville501(c)(12)2012$0$02025-12
West Sound Human Resource Management AssociationBremerton501(c)(6)2014$0$02025-12
Westwood Lateral 43Wenatchee501(c)(12)2006$0$02025-12
Wolfe Water AssociationYakima501(c)(12)2024$0$02025-12
Woodland View Water AssociationBellingham501(c)(12)2021$0$131,6862025-12
Woodplanters Days Celebration CommitteeWoodland501(c)(4)2019$0$02026-06
Zaccardo Family CemeterySequim501(c)(13)2025$0$02025-12
Zeta Upsilon Chapter of Omega Psi Phi Fraternity IncSeattle501(c)(4)2016$0$02025-10
Washington Masonic Grand Lodge Building AssociationUniversity Place501(c)(2)2015$-71,386$2.3 million2025-04

Every nonprofit in Washington

Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.