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    <schemaVersion>X0708</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001543061</cik>
        <entityName>OFFERUP INC.</entityName>
        <issuerAddress>
            <street1>1745 114TH AVENUE SE</street1>
            <street2>SUITE 100</street2>
            <city>BELLEVUE</city>
            <stateOrCountry>WA</stateOrCountry>
            <stateOrCountryDescription>WASHINGTON</stateOrCountryDescription>
            <zipCode>98004</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>844-633-3787</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>iDeal Technologies Inc.</previousName>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2013</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Nick</firstName>
                <lastName>Huzar</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1745 114th Avenue SE</street1>
                <street2>Suite 100</street2>
                <city>Bellevue</city>
                <stateOrCountry>WA</stateOrCountry>
                <stateOrCountryDescription>WASHINGTON</stateOrCountryDescription>
                <zipCode>98004</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
                <relationship>Promoter</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Nathan</firstName>
                <lastName>Garnett</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1745 114th Avenue SE</street1>
                <street2>Suite 100</street2>
                <city>Bellevue</city>
                <stateOrCountry>WA</stateOrCountry>
                <stateOrCountryDescription>WASHINGTON</stateOrCountryDescription>
                <zipCode>98004</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Josh</firstName>
                <lastName>Breinlinger</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>156 Diablo Road</street1>
                <street2>Suite 320</street2>
                <city>Danville</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94526</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
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            <relatedPersonName>
                <firstName>Serena</firstName>
                <lastName>Glover</lastName>
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            <relatedPersonAddress>
                <street1>1745 114th Avenue SE</street1>
                <street2>Suite 100</street2>
                <city>Bellevue</city>
                <stateOrCountry>WA</stateOrCountry>
                <stateOrCountryDescription>WASHINGTON</stateOrCountryDescription>
                <zipCode>98004</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jeff</firstName>
                <lastName>Jordan</lastName>
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            <relatedPersonAddress>
                <street1>2865 Sand Hill Road</street1>
                <street2>Suite 101</street2>
                <city>Menlo Park</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94025</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Justin</firstName>
                <lastName>Sadrian</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>450 Lexington Avenue</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10017</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Darrell</firstName>
                <lastName>Cavens</lastName>
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            <relatedPersonAddress>
                <street1>1745 114th Avenue SE</street1>
                <street2>Suite 100</street2>
                <city>Bellevue</city>
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                <stateOrCountryDescription>WASHINGTON</stateOrCountryDescription>
                <zipCode>98004</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Dinesh</firstName>
                <lastName>Moorjani</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1745 114th Avenue SE</street1>
                <street2>Suite 100</street2>
                <city>Bellevue</city>
                <stateOrCountry>WA</stateOrCountry>
                <stateOrCountryDescription>WASHINGTON</stateOrCountryDescription>
                <zipCode>98004</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Other Technology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2018-07-25</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
            <isSecurityToBeAcquiredType>true</isSecurityToBeAcquiredType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>150067179</totalOfferingAmount>
            <totalAmountSold>39000067</totalAmountSold>
            <totalRemaining>111067112</totalRemaining>
            <clarificationOfResponse>In addition to the sale of shares of capital stock, the Issuer offered warrants to purchase shares of capital stock, the proceeds of which, if any, will be realized upon exercise of the warrants.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>15</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>OFFERUP INC.</issuerName>
                <signatureName>/s/ Nathan Garnett</signatureName>
                <nameOfSigner>Nathan Garnett</nameOfSigner>
                <signatureTitle>General Counsel</signatureTitle>
                <signatureDate>2018-08-09</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
