<SEC-DOCUMENT>0000899243-19-002686.txt : 20190205
<SEC-HEADER>0000899243-19-002686.hdr.sgml : 20190205
<ACCEPTANCE-DATETIME>20190205193202
ACCESSION NUMBER:		0000899243-19-002686
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190201
FILED AS OF DATE:		20190205
DATE AS OF CHANGE:		20190205

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bessemer Venture Partners VIII L.P.
		CENTRAL INDEX KEY:			0001508900
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37806
		FILM NUMBER:		19569491

	BUSINESS ADDRESS:	
		STREET 1:		1865 PALMER AVENUE
		CITY:			LARCHMONT
		STATE:			NY
		ZIP:			01538
		BUSINESS PHONE:		914-833-5300

	MAIL ADDRESS:	
		STREET 1:		1865 PALMER AVENUE
		CITY:			LARCHMONT
		STATE:			NY
		ZIP:			01538

	FORMER NAME:	
		FORMER CONFORMED NAME:	1865B L.P.
		DATE OF NAME CHANGE:	20101228

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bessemer Venture Partners VIII Institutional L.P.
		CENTRAL INDEX KEY:			0001508902
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37806
		FILM NUMBER:		19569492

	BUSINESS ADDRESS:	
		STREET 1:		1865 PALMER AVENUE
		CITY:			LARCHMONT
		STATE:			NY
		ZIP:			01538
		BUSINESS PHONE:		914-833-5300

	MAIL ADDRESS:	
		STREET 1:		1865 PALMER AVENUE
		CITY:			LARCHMONT
		STATE:			NY
		ZIP:			01538

	FORMER NAME:	
		FORMER CONFORMED NAME:	1865G L.P.
		DATE OF NAME CHANGE:	20101228

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Deer VIII & Co. L.P.
		CENTRAL INDEX KEY:			0001559306
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37806
		FILM NUMBER:		19569493

	BUSINESS ADDRESS:	
		STREET 1:		C/O BESSEMER VENTURE PARTNERS
		STREET 2:		1865 PALMER AVENUE
		CITY:			LARCHMONT
		STATE:			NY
		ZIP:			10538
		BUSINESS PHONE:		914-833-5300

	MAIL ADDRESS:	
		STREET 1:		C/O BESSEMER VENTURE PARTNERS
		STREET 2:		1865 PALMER AVENUE
		CITY:			LARCHMONT
		STATE:			NY
		ZIP:			10538

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Deer VIII & Co. Ltd.
		CENTRAL INDEX KEY:			0001559311
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37806
		FILM NUMBER:		19569494

	BUSINESS ADDRESS:	
		STREET 1:		C/O BESSEMER VENTURE PARTNERS
		STREET 2:		1865 PALMER AVENUE
		CITY:			LARCHMONT
		STATE:			NY
		ZIP:			10538
		BUSINESS PHONE:		914-833-5300

	MAIL ADDRESS:	
		STREET 1:		C/O BESSEMER VENTURE PARTNERS
		STREET 2:		1865 PALMER AVENUE
		CITY:			LARCHMONT
		STATE:			NY
		ZIP:			10538

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TWILIO INC
		CENTRAL INDEX KEY:			0001447669
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	BUSINESS ADDRESS:	
		STREET 1:		375 BEALE ST
		STREET 2:		SUITE 300
		CITY:			San Francisco
		STATE:			CA
		ZIP:			94105
		BUSINESS PHONE:		650-270-2199

	MAIL ADDRESS:	
		STREET 1:		375 BEALE ST
		STREET 2:		SUITE 300
		CITY:			San Francisco
		STATE:			CA
		ZIP:			94105
</SEC-HEADER>
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<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
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<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2019-02-01</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001447669</issuerCik>
        <issuerName>TWILIO INC</issuerName>
        <issuerTradingSymbol>TWLO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001508900</rptOwnerCik>
            <rptOwnerName>Bessemer Venture Partners VIII L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BESSEMER VENTURE PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>1865 PALMER AVENUE, SUITE 104</rptOwnerStreet2>
            <rptOwnerCity>LARCHMONT</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10538</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001508902</rptOwnerCik>
            <rptOwnerName>Bessemer Venture Partners VIII Institutional L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BESSEMER VENTURE PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>1865 PALMER AVENUE, SUITE 104</rptOwnerStreet2>
            <rptOwnerCity>LARCHMONT</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10538</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001559306</rptOwnerCik>
            <rptOwnerName>Deer VIII &amp; Co. L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BESSEMER VENTURE PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>1865 PALMER AVENUE, SUITE 104</rptOwnerStreet2>
            <rptOwnerCity>LARCHMONT</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10538</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001559311</rptOwnerCik>
            <rptOwnerName>Deer VIII &amp; Co. Ltd.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BESSEMER VENTURE PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>1865 PALMER AVENUE, SUITE 104</rptOwnerStreet2>
            <rptOwnerCity>LARCHMONT</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10538</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>Byron Deeter is a director of Twilio Inc. (&quot;Twilio&quot;).  Mr. Deeter also is a director of Deer VII &amp; Co. Ltd. (&quot;Deer VII Ltd.&quot;), which is the general partner of Deer VII &amp; Co. L.P. (&quot;Deer VII L.P.&quot;), which is the general partner of Bessemer Venture Partners VII Institutional L.P. (&quot;BVP VII Inst&quot;), BVP VII Special Opportunity Fund L.P. (&quot;BVP VII SOF&quot;) and Bessemer Venture Partners VII L.P. (&quot;BVP VII&quot;). Each of BVP VII Inst, BVP VII SOF, BVP VII and 15 Angels LLC, a wholly-owned subsidiary of BVP VII Inst (collectively, the &quot;BVP VII Funds&quot; and, together with Deer VII Ltd. and Deer VII L.P., the &quot;BVP VII Entities&quot;), beneficially owns shares of Twilio's Class B Common Stock.  Mr. Deeter also is a director of Deer VIII &amp; Co. Ltd. (&quot;Deer VIII Ltd.&quot;), which is the general partner of Deer VIII &amp; Co. L.P. (&quot;Deer VIII L.P.&quot;), which is the general partner of Bessemer Venture Partners VIII Institutional L.P. (&quot;BVP VIII Inst&quot;) and Bessemer Venture Partners VIII L.P. (&quot;BVP VIII&quot; and, together with BVP VIII Inst, Deer VIII Ltd. and Deer VIII L.P., the &quot;BVP VIII Entities&quot;).  BVP VIII Inst and BVP VIII each received shares of Class A Common Stock of Twilio as a result of the conversion of Common Stock of SendGrid, Inc. (&quot;SendGrid&quot;) pursuant to the Agreement and Plan of Merger and Reorganization, dated October 15, 2018, by and between Twilio, SendGrid and Topaz Merger Subsidiary, Inc., as amended on December 13, 2018. Mr. Deeter serves as a representative of the BVP VII Entities and the BVP VIII Entities on the Board of Directors of Twilio.</remarks>

    <ownerSignature>
        <signatureName>/s/ Scott Ring, General Counsel, Deer VIII &amp; Co. Ltd., the General Partner of Deer VIII &amp; Co. L.P., the General Partner of Bessemer Venture Partners VIII L.P.</signatureName>
        <signatureDate>2019-02-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Scott Ring, General Counsel, Deer VIII &amp; Co. Ltd.</signatureName>
        <signatureDate>2019-02-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Scott Ring, General Counsel, Deer VIII &amp; Co. Ltd., the General Partner of Deer VIII &amp; Co. L.P.</signatureName>
        <signatureDate>2019-02-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Scott Ring, General Counsel, Deer VIII &amp; Co. Ltd., the General Partner of Deer VIII &amp; Co. L.P., the General Partner of Bessemer Venture Partners VIII Institutional L.P.</signatureName>
        <signatureDate>2019-02-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
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