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<edgarSubmission>

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001230245</cik>
        <entityName>PIPER JAFFRAY COMPANIES</entityName>
        <issuerAddress>
            <street1>800 NICOLLET MALL, SUITE 1000</street1>
            <street2>MAIL STOP J09S02</street2>
            <city>MINNEAPOLIS</city>
            <stateOrCountry>MN</stateOrCountry>
            <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
            <zipCode>55402</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(612) 303-6000</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Chad</firstName>
                <middleName>R.</middleName>
                <lastName>Abraham</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
                <city>Minneapolis</city>
                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>William</firstName>
                <middleName>R.</middleName>
                <lastName>Fitzgerald</lastName>
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                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
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                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
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            <relatedPersonRelationshipList>
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        </relatedPersonInfo>
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            <relatedPersonName>
                <firstName>Addison</firstName>
                <middleName>L.</middleName>
                <lastName>Piper</lastName>
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                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
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                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
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        </relatedPersonInfo>
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                <firstName>B.</firstName>
                <middleName>Kristine</middleName>
                <lastName>Johnson</lastName>
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                <street1>800 Nicollet Mall, Suite 1000</street1>
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                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Debbra</firstName>
                <middleName>L.</middleName>
                <lastName>Schoneman</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
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                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Philip</firstName>
                <middleName>E.</middleName>
                <lastName>Soran</lastName>
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                <street1>800 Nicollet Mall, Suite 1000</street1>
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                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Scott</firstName>
                <middleName>C.</middleName>
                <lastName>Taylor</lastName>
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            <relatedPersonAddress>
                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
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                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Thomas</firstName>
                <middleName>S.</middleName>
                <lastName>Schreier</lastName>
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            <relatedPersonAddress>
                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
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                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Sherry</firstName>
                <middleName>M.</middleName>
                <lastName>Smith</lastName>
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            <relatedPersonAddress>
                <street1>800 Nicollet Mall, Suite 1000</street1>
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                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
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        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Timothy</firstName>
                <middleName>L.</middleName>
                <lastName>Carter</lastName>
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                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
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                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Frank</firstName>
                <middleName>E.</middleName>
                <lastName>Fairman</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
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                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>James</firstName>
                <lastName>Baker</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
                <city>Minneapolis</city>
                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>R.</firstName>
                <middleName>Scott</middleName>
                <lastName>LaRue</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
                <city>Minneapolis</city>
                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
                <middleName>W.</middleName>
                <lastName>Geelan</lastName>
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            <relatedPersonAddress>
                <street1>800 Nicollet Mall, Suite 1000</street1>
                <street2>Mail Stop J09SSH</street2>
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                <stateOrCountry>MN</stateOrCountry>
                <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                <zipCode>55402</zipCode>
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                <relationship>Executive Officer</relationship>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Christine</firstName>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Other Banking and Financial Services</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Over $100,000,000</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <yetToOccur>true</yetToOccur>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isDebtType>true</isDebtType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>175000000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>175000000</totalOfferingAmount>
            <totalAmountSold>175000000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>1</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
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                <dollarAmount>0</dollarAmount>
                <isEstimate>true</isEstimate>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>PIPER JAFFRAY COMPANIES</issuerName>
                <signatureName>/s/ James Grant</signatureName>
                <nameOfSigner>James Grant</nameOfSigner>
                <signatureTitle>Assistant General Counsel</signatureTitle>
                <signatureDate>2019-10-15</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
