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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Impax Global Environmental Markets Fund</name>
        <lei>5493004WSDJ280SE8M13</lei>
        <title>Impax Global Environmental Markets Fund, Class Institutional</title>
        <cusip>704223775</cusip>
        <identifiers>
          <isin value="US7042237757"/>
        </identifiers>
        <balance>2151904.42600000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>54507739.11000000</valUSD>
        <pctVal>2.273431350208</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Investment company"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Impax Global Sustainable Infrastructure ETF</name>
        <lei>529900IDZS1Q7NSUI796</lei>
        <title>Impax Global Sustainable Infrastructure ETF</title>
        <cusip>704223387</cusip>
        <identifiers>
          <isin value="US7042233871"/>
        </identifiers>
        <balance>2755857.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>71813499.63000000</valUSD>
        <pctVal>2.995227174943</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Investment company"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Impax US Sustainable Economy Fund</name>
        <lei>5493001FQOFD3O7VGQ38</lei>
        <title>Impax US Sustainable Economy Fund, Class Institutional</title>
        <cusip>704223502</cusip>
        <identifiers>
          <isin value="US7042235025"/>
        </identifiers>
        <balance>20616416.24490000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>624265083.90000000</valUSD>
        <pctVal>26.03710657884</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Investment company"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Impax Large Cap Fund</name>
        <lei>549300NZ5W3SP8MQMW39</lei>
        <title>Impax Large Cap Fund, Class Institutional</title>
        <cusip>704223486</cusip>
        <identifiers>
          <isin value="US7042234861"/>
        </identifiers>
        <balance>22226003.25500000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>248042196.33000000</valUSD>
        <pctVal>10.34544661948</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetConditional assetCat="OTHER" desc="Investment company"/>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2026-07-30</ncom:dateSigned>
      <ncom:nameOfApplicant>IMPAX FUNDS SERIES TRUST I</ncom:nameOfApplicant>
      <ncom:signature>Daniel Saltus</ncom:signature>
      <ncom:signerName>Daniel Saltus</ncom:signerName>
      <ncom:title>Treasurer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
