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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 GjtDaz4Wak5HkhgQIr7c7lGL+2x4iPXTqUKo/OLpVKyd/z9JET2MuTr8gcR62Dmj
 Na91tb3vL2y6zKnTKQtzBQ==

<SEC-DOCUMENT>0001461122-10-000001.txt : 20100413
<SEC-HEADER>0001461122-10-000001.hdr.sgml : 20100413
<ACCEPTANCE-DATETIME>20100412174021
ACCESSION NUMBER:		0001461122-10-000001
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
FILED AS OF DATE:		20100413
DATE AS OF CHANGE:		20100412
EFFECTIVENESS DATE:		20100413

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Calsys, Inc.
		CENTRAL INDEX KEY:			0001461122
		IRS NUMBER:				562675996
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-129899
		FILM NUMBER:		10745713

	BUSINESS ADDRESS:	
		STREET 1:		1250 OAKMEAD PARKWAY, #210
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94085
		BUSINESS PHONE:		408-501-8870

	MAIL ADDRESS:	
		STREET 1:		1250 OAKMEAD PARKWAY, #210
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94085
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0704</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001461122</cik>
        <entityName>Calsys, Inc.</entityName>
        <issuerAddress>
            <street1>2700 Augustine Drive, Suite 145</street1>
            <city>Santa Clara</city>
            <stateOrCountry>CA</stateOrCountry>
            <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
            <zipCode>95054</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>408-501-8870</issuerPhoneNumber>
        <jurisdictionOfInc>CALIFORNIA</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2007</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Wenjun</firstName>
                <lastName>Liu</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>c/o Calsys, Inc.</street1>
                <street2>2700 Augustine Drive, Suite 145</street2>
                <city>Santa Clara</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>95054</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001461122-09-000001</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-03-30</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isDebtType>true</isDebtType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>N/A</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>N/A</street1>
                    <city>N/A</city>
                    <stateOrCountry>XX</stateOrCountry>
                    <stateOrCountryDescription>Unknown</stateOrCountryDescription>
                    <zipCode>00000</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <value>All States</value>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>1000000</totalOfferingAmount>
            <totalAmountSold>206000</totalAmountSold>
            <totalRemaining>794000</totalRemaining>
            <clarificationOfResponse>This filing covers the Convertible Promissory Notes, the Preferred Stock issuable upon conversion of such Notes and the Common Stock issuable upon conversion of such Preferred Stock.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>2</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>Calsys, Inc.</issuerName>
                <signatureName>/s/ Wenjun Liu</signatureName>
                <nameOfSigner>Wenjun Liu</nameOfSigner>
                <signatureTitle>President</signatureTitle>
                <signatureDate>2010-04-12</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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