<?xml version="1.0"?>
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    <schemaVersion>X0603</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001439816</cik>
        <entityName>NETWITNESS CORP</entityName>
        <issuerAddress>
            <street1>500 GROVE STREET</street1>
            <street2>SUITE 300</street2>
            <city>HERNDON</city>
            <stateOrCountry>VA</stateOrCountry>
            <zipCode>20170</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>703-889-8950</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2006</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Amit</firstName>
                <lastName>Yoran</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o NetWitness Corporation</street1>
                <street2>500 Grove Street, Suite 300</street2>
                <city>Herndon</city>
                <stateOrCountry>VA</stateOrCountry>
                <zipCode>20170</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Nick</firstName>
                <lastName>Lantuh</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o NetWitness Corporation</street1>
                <street2>500 Grove Street, Suite 300</street2>
                <city>Herndon</city>
                <stateOrCountry>VA</stateOrCountry>
                <zipCode>20170</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Dana</firstName>
                <lastName>Duffy</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o NetWitness Corporation</street1>
                <street2>500 Grove Street, Suite 300</street2>
                <city>Herndon</city>
                <stateOrCountry>VA</stateOrCountry>
                <zipCode>20170</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Tim</firstName>
                <lastName>Belcher</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o NetWitness Corporation</street1>
                <street2>500 Grove Street, Suite 300</street2>
                <city>Herndon</city>
                <stateOrCountry>VA</stateOrCountry>
                <zipCode>20170</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>H.P.</firstName>
                <lastName>Goldfield</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Stonebridge International, LLC</street1>
                <street2>555 13th Street NW, #300W</street2>
                <city>Washington</city>
                <stateOrCountry>DC</stateOrCountry>
                <zipCode>20004</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Louie</firstName>
                <lastName>Gilman</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Alsop Louie Partners</street1>
                <street2>1255 Battery Street, Suite 400</street2>
                <city>San Francisco</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94111</zipCode>
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                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Suzanne</firstName>
                <lastName>Gorman</lastName>
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            <relatedPersonAddress>
                <street1>c/o Omgeo LLC</street1>
                <street2>22 Thomson Place</street2>
                <city>Boston</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>02210</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
                <middleName>P.</middleName>
                <lastName>Watters</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o iSIGHT Partners</street1>
                <street2>8333 Douglas Avenue, Suite 1460</street2>
                <city>Dallas</city>
                <stateOrCountry>TX</stateOrCountry>
                <zipCode>75225</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Other Technology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-12-23</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isSecurityToBeAcquiredType>true</isSecurityToBeAcquiredType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>9999999</totalOfferingAmount>
            <totalAmountSold>5689647</totalAmountSold>
            <totalRemaining>4310352</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>13</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>NETWITNESS CORP</issuerName>
                <signatureName>/s/ Amit Yoran</signatureName>
                <nameOfSigner>Amit Yoran</nameOfSigner>
                <signatureTitle>Chief Executive Officer</signatureTitle>
                <signatureDate>2010-01-11</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
