﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2024v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-03-03T12:03:18-05:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>042917204</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>ANSTISS &amp; CO PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>6 OMNI WAY STE 201</AddressLine1Txt>
        <CityNm>CHELMSFORD</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>018244187</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>811219419</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>BOSLAB INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>BOSL</BusinessNameControlTxt>
      <PhoneNum>9704203313</PhoneNum>
      <USAddress>
        <AddressLine1Txt>561 WINDSOR STREET SUITE B405</AddressLine1Txt>
        <CityNm>SOMERVILLE</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02143</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>WENDY POULIOT</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>9258177300</PhoneNum>
      <SignatureDt>2025-03-03</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>false</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>BRENDAN E TOOLIN</PreparerPersonNm>
      <PTIN>P01323447</PTIN>
      <PhoneNum>9784522500</PhoneNum>
      <PreparationDt>2025-03-03</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="RetDoc2" referenceDocumentId="RetDoc3">
      <AddressChangeInd>X</AddressChangeInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>BOSLAB.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc4">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>30693</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>6000</ContributionsGiftsGrantsEtcAmt>
      <ProgramServiceRevenueAmt>165</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>24528</MembershipDuesAmt>
      <TotalRevenueAmt>30693</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>1004</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>16355</OccupancyRentUtltsAndMaintAmt>
      <OtherExpensesTotalAmt>4201</OtherExpensesTotalAmt>
      <TotalExpensesAmt>21560</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>9133</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>16259</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>25392</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>13608</BOYAmt>
        <EOYAmt>18173</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>2676</BOYAmt>
        <EOYAmt>8461</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>16284</BOYAmt>
        <EOYAmt>26634</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>25</BOYAmt>
        <EOYAmt>1242</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>16259</BOYAmt>
        <EOYAmt>25392</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>BOSLAB'S MISSION IS TO DEMOCRATIZE BIOTECHNOLOGY IN OUR COMMUNITY. BOSLAB IS A THRIVING COMMUNITY-BASED BIOTECHNOLOGY LABORATORY. WITH A FOCUS ON MOLECULAR AND SYNTHETIC BIOLOGY, WE OFFER CLASSES, EDUCATIONAL WORKSHOPS, SOCIAL EVENTS, AND A SPACE TO SUPPORT INDIVIDUAL BIOHACKING PROJECTS. WE ADVOCATE FOR SCIENTIFIC TRANSPARENCY THROUGH ENGAGING ALL MEMBERS OF THE COMMUNITY IN SCIENTIFIC DISCUSSION IN AN INCLUSIVE, FUN, SAFE, AND INNOVATIVE ENVIRONMENT.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>CLASSES, EDUCATIONAL WORKSHOPS, SOCIAL EVENTS, AND A SPACE TO SUPPORT INDIVIDUAL BIOHACKING PROJECTS.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>18261</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>18261</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>WENDY POULIOT</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>25.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JASMIN JATA</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JOHN HARROLD</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KELLEN ANDRILENAS</PersonNm>
        <TitleTxt>SAFETY CHAIR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>20.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LADA SYCHEVA</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>MA</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>JASMIN JATA</PersonNm>
        <USAddress>
          <AddressLine1Txt>561 WINDSOR STREET SUITE B405</AddressLine1Txt>
          <CityNm>SOMERVILLE</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02143</ZIPCd>
        </USAddress>
        <PhoneNum>6177107859</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>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="RetDoc4">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>6188</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>5325</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2142</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>5545</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>6000</CurrentTaxYearAmt>
        <TotalAmt>25200</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>18559</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>18349</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>20301</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>20868</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>24693</CurrentTaxYearAmt>
        <TotalAmt>102770</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>24747</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>23674</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>22443</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>26413</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>30693</CurrentTaxYearAmt>
        <TotalAmt>127970</TotalAmt>
      </Total509Grp>
      <PublicSupportTotal509Amt>127970</PublicSupportTotal509Amt>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>24747</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>23674</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>22443</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>26413</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>30693</CurrentTaxYearAmt>
        <TotalAmt>127970</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>1.00000</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>1.00000</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART III, LINE 12</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER INCOME 0</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="RetDoc3">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES ADVERTISING AND MARKETING 255 OFFICE &amp; LAB SUPPLIES 1,013 INSURANCE 1,208 BANK CHARGES &amp; FEES 782 BUSINESS LICENSE &amp; FEES 50 SOFTWARE 806 NON-INVESTMENT DEPRECIATION 87 TOTAL 4,201</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 24</FormAndLineReferenceDesc>
        <ExplanationTxt>ACCOUNTS RECEIVABLE 1,139 782 LABORATORY EQUIPMENT - PURCHASED 7,607 7,607 LESS ACCUMULATED DEPRECIATION 7,520 7,607 SECURITY DEPOSIT 1,450 7,679 TOTAL 2,676 8,461</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 26</FormAndLineReferenceDesc>
        <ExplanationTxt>IGEM FUNDS 25 1,242</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>BOSLAB'S MISSION IS TO DEMOCRATIZE BIOTECHNOLOGY IN OUR COMMUNITY. BOSLAB IS A THRIVING COMMUNITY-BASED BIOTECHNOLOGY LABORATORY. WITH A FOCUS ON MOLECULAR AND SYNTHETIC BIOLOGY, WE OFFER CLASSES, EDUCATIONAL WORKSHOPS, SOCIAL EVENTS, AND A SPACE TO SUPPORT INDIVIDUAL BIOHACKING PROJECTS. WE ADVOCATE FOR SCIENTIFIC TRANSPARENCY THROUGH ENGAGING ALL MEMBERS OF THE COMMUNITY IN SCIENTIFIC DISCUSSION IN AN INCLUSIVE, FUN, SAFE, AND INNOVATIVE ENVIRONMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>