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      <Form990PartVIISectionAGrp>
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      <IndivRcvdGreaterThan100KCnt>6</IndivRcvdGreaterThan100KCnt>
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      <ContractorCompensationGrp>
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          <BusinessName>
            <BusinessNameLine1Txt>MARK LIEN</BusinessNameLine1Txt>
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          <USAddress>
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      <ProgramServiceRevenueGrp>
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      <ExpensesNotReportedAmt>21975</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>8128826</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>18381</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>18381</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>8147207</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD DESIGNATED FUNDS WERE ESTABLISHED TO RECEIVE CONTRIBUTIONS AND GRANTS IN ORDER TO FURTHER THE EDUCATIONAL GOALS OF IES. THE TEMPORARILY RESTRICTED FUNDS HAVE BEEN CONTRIBUTED TO IES FOR SPECIFIC PURPOSES, PRIMARILY FOR LIGHTING EDUCATION, AWARDS AND SCHOLARSHIPS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>COST OF GOODS SOLD 21,975.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>COST OF GOODS SOLD 21,975.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>SCHOLARSHIPS</GrantTypeTxt>
        <RecipientCnt>15</RecipientCnt>
        <CashGrantAmt>33605</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY'S COMMITTEE REQUIRES ALL APPLICANTS TO SUBMIT AWARD PROJECTS BY PAPERWORK TO SCHOOLS WHICH THEN MUST BE APPROVED BEFORE MONIES ARE ISSUED. THESE GRANTS ARE SPECIFICALLY FOR LIGHTING EDUCATION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>COLLEEN HARPER</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR &amp; CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>257500</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>12500</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>16200</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>36730</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>322930</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>OLGA LOUKINA</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>205000</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>15000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>13200</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>35055</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>268255</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>GRAHAM KIRK</PersonNm>
        <TitleTxt>DIRECTOR OF MARKETING &amp; BUSINESS DEV</TitleTxt>
        <BaseCompensationFilingOrgAmt>164000</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>9840</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>26057</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>199897</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>BRIENNE WILLCOCK</PersonNm>
        <TitleTxt>DIRECTOR OF EDUCATION &amp; STANDARDS</TitleTxt>
        <BaseCompensationFilingOrgAmt>174250</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>10455</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>12821</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>197526</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>PATRICIA MCGILLICUDDY</PersonNm>
        <TitleTxt>SENIOR MANAGER OF TECHNICAL CONTENT</TitleTxt>
        <BaseCompensationFilingOrgAmt>145466</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>8728</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>8952</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>163146</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>KLYSHA ROSS</PersonNm>
        <TitleTxt>DIRECTOR OF EVENT OPERATIONS</TitleTxt>
        <BaseCompensationFilingOrgAmt>148625</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>8918</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>1694</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>159237</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I - LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>THE IES SEEKS TO IMPROVE THE LIGHTING ENVIRONMENT BY BRINGING TOGETHER THOSE WITH LIGHTING KNOWLEDGE AND BY THE TRANSLATING THAT KNOWLEDGE INTO ACTIONS THAT BENEFIT THE PUBLIC.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>CEASED TO PRODUCE ITS MONTHLY MAGAZINE "LD+A MAGAZINE" WHICH WAS SOLD TO A PUBLISHING COMPANY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III - LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>CONFERENCES: IES ANNUAL CONFERENCE IS A RANGE OF EDUCATIONAL PROGRAMMING INCLUDING WORKSHOPS, SEMINARS, IMMERSIVE EXPERIENCES, TOURS, NETWORKING, AND PAPER AND POSTER PRESENTATION ON THE ART, DESIGN, SCIENCE, AND RESEARCH OF LIGHTING RELEVANT TO LIGHTING PROFESSIONAL EDUCATORS, AND RELATED DESIGN DISCIPLINES. STREET AND AREA LIGHTING CONFERENCE (SALC) IS AN EDUCATIONAL CONFERENCE HELD ONCE A YEAR WHICH IS WEIGHTED TOWARDS ROADWAY LIGHTING ISSUES. ILLUMINATING AWARDS (IA) EVENT RECOGNIZES INDIVIDUALS FOR PROFESSIONALISM, INGENUITY, AND ORIGINALITY IN LIGHTING DESIGN BASED ON THE INDIVIDUAL MERIT OF EACH ENTRY. JUDGES ARE SELECTED FROM A BROAD PROFESSIONAL SPECTRUM, REPRESENTING KNOWLEDGE OF LIGHTING AND DESIGN EXCELLENCE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III - LINE 4B</FormAndLineReferenceDesc>
        <ExplanationTxt>STANDARDS, RESEARCH, LEUKOS &amp; TECHNICAL COMMITTEES: THE PRIMARY ROLE OF THE PROGRAM IS TO DEVELOP LIGHTING STANDARDS FOR THE BENEFIT OF THE PUBLIC. VOLUNTEER TECHNICAL COMMITTEES OF INDUSTRY EXPERTS AND INTERESTED PARTIES WORK DILIGENTLY TO DEVELOP AND MAINTAIN IES LIGHTING LIBRARY, CONSISTING OF APPROXIMATELY 70 PUBLICATIONS THAT HAVE BEEN VETTED THOUGH ANSI ACCREDITED STANDARDS DEVELOPMENT ORGANIZATION (SDO) PROCESS. OUR DOCUMENTS INCLUDE RECOMMENDED PRACTICES FOR MANY LIGHTING APPLICATIONS, INDUSTRY STANDARDS ON LIGHT SOURCE AND LUMINAIRE MEASUREMENT AND TESTING, AND A VARIETY OF TECHNICAL MEMORANDA AND DESIGN GUIDE DOCUMENTS COVERING A WIDE EXPANSE OF ILLUMINATION TOPICS. LEUKOS IS AN ONLINE, QUARTERLY JOURNAL WHICH IS AN INTERNATIONAL VENUE FOR TECHNICAL DEVELOPMENTS, SCIENTIFIC DISCOVERIES, AND EXPERIMENTAL RESULTS OF CURRENT INTEREST OR LASTING IMPORTANCE IN THE APPLIED USE OF LIGHT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART III - LINE 4C</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERSHIP: THE ILLUMINATING ENGINEERING SOCIETY IS A MEMBERSHIP ORGANIZATION OF MORE THAN 6,000 ENGINEERS, ARCHITECTS, DESIGNERS, EDUCATORS, STUDENTS, CONTRACTORS, DISTRIBUTORS, UTILITY PERSONNEL, MANUFACTURERS AND SCIENTISTS IN NEARLY 60 COUNTRIES. IES IS THE PREMIER SOURCE OF LEARNING AND KNOWLEDGE FOR THE LIGHTING PROFESSION, AND PROVIDES RESOURCES, EDUCATION, AND STANDARDS TO ENHANCE THE EFFICACY OF THOSE WORKING TO IMPROVE THE LIGHTED ENVIRONMENT. THE IES MEMBERSHIP DEPARTMENT MANAGES AND CULTIVATES RELATIONSHIPS WITH MEMBERS; FOCUSES ON MEMBER SATISFACTION, ENGAGEMENT, RETENTION, AND ACQUISITION; COORDINATES WITH LOCAL MEMBER GROUPS; EVALUATES AND ENHANCES MEMBER BENEFITS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ILLUMINATING ENGINEERING SOCIETY WAS INCORPORATED AS A MEMBERSHIP ORGANIZATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THERE IS AN ANNUAL ELECTION OF BOARD OF DIRECTORS AND OFFICERS. PRESIDENT, PAST PRESIDENT, AND VICE PRESIDENT SERVE FOR ONE YEAR. TREASURER AND DIRECTORS SERVE FOR TWO YEARS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>MAJOR BY-LAWS CHANGES ARE SUBJECT TO THE MEMBERSHIP APPROVAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 WILL BE REVIEWED BY THE TREASURER PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ANYONE WHO FALLS UNDER THE CLAUSE IS REQUIRED TO SIGN THE STATEMENT ANNUALLY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE OF THE BOARD HAS REVIEWS COMPARABLE STATISTICAL DATA AND DELIBERATES AND APPROVED COMPENSATION ANNUALLY. THE EXECUTIVE DIRECTOR PERFORMS AN ANNUAL EVALUATION AND APPROVES COMPENSATION ANNUALLY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>IES MAKES ITS GOVERNING DOCUMENTS AND CONFLICT OF INTEREST POLICY AVAILABLE TO THE PUBLIC UPON REQUEST. IES'S FORM 990 AND FINANCIAL STATEMENTS ARE AVAILABLE ON THE INTERNET.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>