﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xsi:schemaLocation="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2025v4.1">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-06-05T16:04:52-05:00</ReturnTs>
    <TaxPeriodEndDt>2025-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmName>
        <BusinessNameLine1Txt>Block Advisors</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>5003 TACOMA MALL BLVD STE 104</AddressLine1Txt>
        <CityNm>TACOMA</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>98409</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2025-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>911421894</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>WASHINGTON STATE RIDESHARING ORGANIZATION</BusinessNameLine1Txt>
      </BusinessName>
      <InCareOfNm>% OLIVIA KAHN</InCareOfNm>
      <BusinessNameControlTxt>WASH</BusinessNameControlTxt>
      <PhoneNum>2538619879</PhoneNum>
      <USAddress>
        <AddressLine1Txt>120 STATE AVENUE NE</AddressLine1Txt>
        <CityNm>Olympia</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>98501</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>OLIVIA KAHN</PersonNm>
      <PersonTitleTxt>CHAIR</PersonTitleTxt>
      <PhoneNum>2538619879</PhoneNum>
      <SignatureDt>2026-05-13</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <PreparerPersonGrp>
      <PreparerPersonNm>Rolfe Godfrey</PreparerPersonNm>
      <PTIN>P00198797</PTIN>
      <PhoneNum>2534759464</PhoneNum>
      <PreparationDt>2026-05-13</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2025</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="2">
    <IRS990EZ documentId="IRS990EZ" referenceDocumentId="IRS990ScheduleO">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>WSRO.NET</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="6">X</Organization501cInd>
      <TypeOfOrganizationAssocInd>X</TypeOfOrganizationAssocInd>
      <GrossReceiptsAmt>74781</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>12200</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>45316</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>17174</MembershipDuesAmt>
      <CostOrOtherBasisExpenseSaleAmt>0</CostOrOtherBasisExpenseSaleAmt>
      <GainOrLossFromSaleOfAssetsAmt>0</GainOrLossFromSaleOfAssetsAmt>
      <SpecialEventsDirectExpensesAmt>0</SpecialEventsDirectExpensesAmt>
      <SpecialEventsNetIncomeLossAmt>0</SpecialEventsNetIncomeLossAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <GrossProfitLossSlsOfInvntryAmt>0</GrossProfitLossSlsOfInvntryAmt>
      <OtherRevenueTotalAmt>91</OtherRevenueTotalAmt>
      <TotalRevenueAmt>74781</TotalRevenueAmt>
      <BenefitsPaidToOrForMembersAmt>1175</BenefitsPaidToOrForMembersAmt>
      <SalariesOtherCompEmplBnftAmt>0</SalariesOtherCompEmplBnftAmt>
      <PrintingPublicationsPostageAmt>237</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>51553</OtherExpensesTotalAmt>
      <TotalExpensesAmt>52965</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>21816</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>45102</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>66918</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>45102</BOYAmt>
        <EOYAmt>66918</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <LandAndBuildingsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </LandAndBuildingsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>45102</BOYAmt>
        <EOYAmt>66918</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>45102</BOYAmt>
        <EOYAmt>66918</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>Washington State Rideshare Organization's exempt purpose is to encourage policymakers, employers and commuters to support the use of transportation alternatives rather than driving alone. Our goal is to reduce air pollution, traffic congestion and energy consumption throughout the state of Washington and the Pacific Northwest.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>WSRO Conference 2025 get inspired by amazing presenters and great panelists, learn about events and news within the world, network and exchange ideas with peers, celebrate the idea that when we work together and act as one community we can help improve transportation and the environment. The WSRO board is excited to announce this year's conference, "The Art of Transportation", in Tacoma, WA. at the Hotel Murano. September 28th 2025 to September 30th 2025.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>45316</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>35510</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>35510</TotalProgramServiceExpensesAmt>
      <InfoInScheduleOPartIVInd>X</InfoInScheduleOPartIVInd>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MATT TRECHA</PersonNm>
        <TitleTxt>VICE CHAIR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>OLIVIA KAHN</PersonNm>
        <TitleTxt>CHAIR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>MICHAEL LEACH</PersonNm>
        <TitleTxt>CHAIR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>BILLY NORTON</PersonNm>
        <TitleTxt>COMMUNICATIONS</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>GREG GARRETT</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LAURA SVANCAREK</PersonNm>
        <TitleTxt>PROMOTIONS</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CHERYL O'CONNOR</PersonNm>
        <TitleTxt>MEMBERSHIP</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.0</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <OrganizationFiled990TInd>false</OrganizationFiled990TInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <PersonNm>OLIVIA KAHN</PersonNm>
        <USAddress>
          <AddressLine1Txt>120 STATE AVENUE NE</AddressLine1Txt>
          <CityNm>OLYMPIA</CityNm>
          <StateAbbreviationCd>WA</StateAbbreviationCd>
          <ZIPCd>98501</ZIPCd>
        </USAddress>
        <PhoneNum>2538619879</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <FiledScheduleAInd>false</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990EZ PART I LINE 8</FormAndLineReferenceDesc>
        <ExplanationTxt>Description:REFUNDS Amount:91</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990EZ PART I LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Description:CONFERENCES PRIZES Amount:12000</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990EZ PART I LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Description:BOARD MEETING DINNER Amount:410</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990EZ PART I LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Description:PAYPAL TRANSACTION FEES Amount:962</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990EZ PART I LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Description:WEBSITE AND COLLATERAL Amount:2194</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990EZ PART I LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Description:WASHINGTON STATE SECRETARY OF STATE Amount:477</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>