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Data / Nonprofits / Washington / Prosser

Nonprofits in Prosser, WA: 62 registered with the IRS

62 nonprofits are registered with the IRS in Prosser, WA, 42 of them 501(c)(3) charities; the 12 that report revenue took in $55.3 million. The largest by revenue: Benton Rural Electric Association ($50.3 million), Northwest Nursery Improvement Institute ($1.7 million), Washington State Patrol Memorial Foundation ($639,141). Most common causes: education (9), recreation and sports (7), community improvement and capacity building (4).

SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.

Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Benton Rural Electric Association501(c)(12)1937$50.3 million$138.7 million2025-12
Northwest Nursery Improvement Institute501(c)(5)1992$1.7 million$6.2 million2025-06
Washington State Patrol Memorial Foundation501(c)(3)1984$639,141$2.3 million2025-09
Valley Theater501(c)(3)1962$485,312$499,3672025-05
Prosser Community Involvment and ActionEducation501(c)(3)2019$399,347$24,8842024-12
Prosser Memorial Health FoundationHealth care501(c)(3)2019$390,331$1.4 million2025-12
Prosser Chamber of CommerceCommunity improvement and capacity building501(c)(6)2016$333,264$32,7932025-12
Fraternal Order of EaglesMutual and membership benefit501(c)(8)1991$325,810$410,4572025-05
Jubilee Minstry of Prosser501(c)(3)1992$308,403$243,2982025-12
Prosser Cemetery Association Inc501(c)(13)1923$259,283$1.1 million2024-12
Prosser Economic Development Association501(c)(3)1992$190,223$170,4852025-12
Benton County Museum and Historical SocietyArts, culture and humanities501(c)(3)1982$61,941$467,0612025-12
Abrigo Del Alticimo501(c)(3)1964
Amvets501(c)(19)1945$0$02025-06
Amvets501(c)(19)1945$0$02025-06
Benton County Cattlemens Associatio NFood, agriculture and nutrition501(c)(5)2026
Columbia River Nurse Practitioner AssociationCommunity improvement and capacity building501(c)(6)2018$0$02025-12
Covenant Presbyterian Church of Processer WaReligion-related501(c)(3)20132014-12
Dr Burr Field Scholarship FundEducation501(c)(3)2015$0$02025-06
El Buen Samaritano Pentecostal Holiness Church501(c)(3)1964
Fraternal Order of Eagles501(c)(8)1991$0$02026-05
Future Farmers of America State Associations & Local Chapter501(c)(3)1945$0$02025-08
G W Mabel Smith Cemetery AssociationMutual and membership benefit501(c)(13)2015$0$02025-12
Great Prosser Balloon RallyRecreation and sports501(c)(4)2025$0$02024-11
Hershal Pleasant Memorial Scholarship FundEducation501(c)(3)1993$39,1052025-12
Historic Downtown Prosser AssociationArts, culture and humanities501(c)(3)2007$0$02025-12
Horse Heaven Community Club Inc501(c)(4)1964$0$02024-12
Horse Heaven Hills Kitten RescueAnimal-related501(c)(3)2024$0$02025-05
Horse Heaven Hills Wine GrowersPhilanthropy, voluntarism and grantmaking foundations501(c)(4)2007$0$02025-12
Horse Heaven Sportsmen SocietyRecreation and sports501(c)(7)2014$0$02025-12
Hugh W Cox Memorial Scholarship TrustEducation501(c)(3)1995$113,6862025-12
Independent Assemblies of God International501(c)(3)1964
Kiddie Korner Nursery School501(c)(3)2009$0$02025-12
Knights of Columbus501(c)(8)1940$0$02025-12
Messiah Lutheran Church501(c)(3)19412013-12
Paideia Christian AcademyEducation501(c)(3)2025
Paul William ProjectFood, agriculture and nutrition501(c)(3)2025$0$02025-12
Prosser Booster ClubEducation501(c)(3)2012$0$02025-12
Prosser Community BandArts, culture and humanities501(c)(3)2024$0$02025-12
Prosser Community VolunteersPublic and societal benefit501(c)(3)2025$0$02025-12
Prosser Depot Inc501(c)(4)1998$0$02025-12
Prosser Music BoostersEducation501(c)(3)2012$0$02025-12
Prosser PtoEducation501(c)(3)2023$0$02025-12
Prosser Public Hospital District of Benton CountyHealth care501(c)(3)1996
Prosser Rotary Supports Various ProjectsPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2019$0$02025-06
Prosser Senior Citizens Club501(c)(3)1979$0$02025-12
Prosser Swim Team501(c)(3)1988$0$02023-12
Prosser Tower Site IncCommunity improvement and capacity building501(c)(3)2007$0$02025-12
Prosser United Good NeighborsPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1981$0$02024-09
Prosser Wine NetworkCommunity improvement and capacity building501(c)(3)2014$0$02025-12
Prosser Wrestling AcademyRecreation and sports501(c)(3)2025$0$02025-12
Prosser Wrestling AcademyRecreation and sports501(c)(3)2017$0$02023-12
Prosser Youth BaseballRecreation and sports501(c)(3)2014$0$02025-12
Roza Heights Water Association Inc501(c)(12)1953$0$02025-12
Science Exploration and EducationEducation501(c)(3)2019$0$02024-12
Sofias Shining StarsRecreation and sports501(c)(3)2016$0$02025-12
Sunnyside Club VolleyballRecreation and sports501(c)(3)2016$0$02025-12
Universal Faith MonasteryReligion-related501(c)(3)2023
Veterans of Foreign Wars of the United States Dept of Washington501(c)(4)1941$0$02025-12
Victory City ChurchReligion-related501(c)(3)2025
Whitstran Heights Water Association501(c)(12)1951$0$02025-12
Yakima Basin Scout AllianceYouth development501(c)(3)2026$0$02025-09

By cause in Prosser, WA

Nonprofits in every city of the state

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.