<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001334058</cik>
        <entityName>LAGOTEK CORP</entityName>
        <issuerAddress>
            <street1>11661 SE 1st St, Suite 208</street1>
            <city>BELLEVUE</city>
            <stateOrCountry>WA</stateOrCountry>
            <zipCode>98005</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>425-455-2165</issuerPhoneNumber>
        <jurisdictionOfInc>WASHINGTON</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2005</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Kenneth</firstName>
                <lastName>Batti?</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>5614 SW Winthrop St</street1>
                <city>Seattle</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98116</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ron</firstName>
                <lastName>Risdon</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2155th St. SW</street1>
                <city>Lynnwood</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98037</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Eugene</firstName>
                <lastName>Luskin</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>4120 257th Ct SE</street1>
                <city>Redmond</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98029</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Lev</firstName>
                <lastName>Tcherkachine</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2501 174th Ave NE</street1>
                <city>Redmond</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98052</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>David</firstName>
                <lastName>Kizhnerman</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>13904 101st Place NE</street1>
                <city>Kirkland</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98034</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Alexander</firstName>
                <lastName>Grach</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>3506 188th St. SE</street1>
                <city>Bothell</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98012</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ilya</firstName>
                <lastName>Billig</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>915 200th Ave SE</street1>
                <city>Sammamish</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98075</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jack</firstName>
                <lastName>Tenhulzen</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>5082 Happy Valley Rd</street1>
                <city>Sequim</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98382</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gregory</firstName>
                <lastName>Palant</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>6557 163rd Pl SE</street1>
                <city>Bellevue</city>
                <stateOrCountry>WA</stateOrCountry>
                <zipCode>98006</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other Technology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>$5,000,001 - $25,000,000</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2006-06-05</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isDebtType>true</isDebtType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
            <isSecurityToBeAcquiredType>true</isSecurityToBeAcquiredType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>5000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>5063236</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>113</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse>None</clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>1269553</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse>This is the total amount paid to 8 officers over a two and a half year period from the proceed of the Series B funds.  No officer was paid an average annual compensation over $80,000 during the period.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>LAGOTEK CORP</issuerName>
                <signatureName>Kenneth Battie</signatureName>
                <nameOfSigner>Kenneth Battie</nameOfSigner>
                <signatureTitle>COO/CFO</signatureTitle>
                <signatureDate>2010-01-05</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
