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          <cik>0001014913</cik>
          <ccc>XXXXXXXX</ccc>
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        <classId>C000206680</classId>
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      <regFileNumber>811-07685</regFileNumber>
      <regCik>0001014913</regCik>
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      <regStreet1>400 Skokie Blvd</regStreet1>
      <regStreet2>Suite 500</regStreet2>
      <regCity>Northbrook</regCity>
      <regStateConditional regCountry="US" regState="US-IL"/>
      <regZipOrPostalCode>60062-2815</regZipOrPostalCode>
      <regPhone>847-509-9860</regPhone>
      <seriesName>Frontier MFG Global Sustainable Fund</seriesName>
      <seriesId>S000063792</seriesId>
      <seriesLei>549300FO6X8UM5G4OL63</seriesLei>
      <repPdEnd>2021-06-30</repPdEnd>
      <repPdDate>2020-09-30</repPdDate>
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      <totLiabs>26524.040000000000</totLiabs>
      <netAssets>11363737.290000000000</netAssets>
      <assetsAttrMiscSec>0.000000000000</assetsAttrMiscSec>
      <assetsInvested>0.000000000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.000000000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.000000000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.000000000000</amtPayOneYrOthAffil>
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        <name>SAP SE</name>
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        <name>Mastercard Inc</name>
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        <name>Microsoft Corp</name>
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        <name>Novartis AG</name>
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        <name>Nestle SA</name>
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        <assetCat>STIV</assetCat>
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        <name>Visa Inc</name>
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        <name>Yum! Brands Inc</name>
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        <name>Terna Rete Elettrica Nazionale</name>
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        <name>Alibaba Group Holding Ltd</name>
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        <name>Alphabet Inc</name>
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        <title>Alphabet Inc</title>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Water Works Co Inc</name>
        <lei>549300DXHIJQMD5WFW18</lei>
        <title>American Water Works Co Inc</title>
        <cusip>030420103</cusip>
        <identifiers>
          <isin value="US0304201033"/>
          <ticker value="AWK"/>
        </identifiers>
        <balance>815.000000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>118077.200000000000</valUSD>
        <pctVal>1.0390701315</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>CME Group Inc</name>
        <lei>LCZ7XYGSLJUHFXXNXD88</lei>
        <title>CME Group Inc</title>
        <cusip>12572Q105</cusip>
        <identifiers>
          <isin value="US12572Q1058"/>
          <ticker value="CME"/>
        </identifiers>
        <balance>818.000000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>136859.580000000000</valUSD>
        <pctVal>1.2043536075</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Chipotle Mexican Grill Inc</name>
        <lei>N/A</lei>
        <title>Chipotle Mexican Grill Inc</title>
        <cusip>169656105</cusip>
        <identifiers>
          <isin value="US1696561059"/>
          <ticker value="CMG"/>
        </identifiers>
        <balance>290.000000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>360675.900000000000</valUSD>
        <pctVal>3.1739197308</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Eversource Energy</name>
        <lei>SJ7XXD41SQU3ZNWUJ746</lei>
        <title>Eversource Energy</title>
        <cusip>30040W108</cusip>
        <identifiers>
          <isin value="US30040W1080"/>
          <ticker value="ES"/>
        </identifiers>
        <balance>3373.000000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>281814.150000000000</valUSD>
        <pctVal>2.4799424943</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Facebook Inc</name>
        <lei>BQ4BKCS1HXDV9HN80Z93</lei>
        <title>Facebook Inc</title>
        <cusip>30303M102</cusip>
        <identifiers>
          <isin value="US30303M1027"/>
          <ticker value="FB"/>
        </identifiers>
        <balance>2502.000000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>655273.800000000000</valUSD>
        <pctVal>5.7663582260</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>
      <explntrNote note="The monthly total returns shown in B.5.a. do not reflect the deduction of sales loads or redemption fees." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2020-11-24</ncom:dateSigned>
      <ncom:nameOfApplicant>Frontier Funds, Inc.</ncom:nameOfApplicant>
      <ncom:signature>/s/ Elyce D. Dilworth</ncom:signature>
      <ncom:signerName>Frontier Funds, Inc.</ncom:signerName>
      <ncom:title>Treasurer and Assistant Secretary</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
