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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2017-10-05</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001710583</issuerCik>
        <issuerName>Switch, Inc.</issuerName>
        <issuerTradingSymbol>SWCH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001729227</rptOwnerCik>
            <rptOwnerName>Tom &amp; Leslie Thomas Children's Trust</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2300 WEST SAHARA AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 530</rptOwnerStreet2>
            <rptOwnerCity>LAS VEGAS</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>CLASS B COMMON STOCK</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4052276</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>COMMON UNITS</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>CLASS A COMMON STOCK</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4052276</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Acquired pursuant to a Subscription Agreement with the Issuer in connection with the recapitalization of Switch, Ltd., and the Issuer's corporate restructuring and IPO.  One share of the Issuer's Class B common stock was issued for each common membership interest in Switch, Ltd. (&quot;Common Unit&quot;) held by the reporting person.  Pursuant to the Amended and Restated Articles of Incorporation of the Issuer, the shares of Class B common stock: (i) confer only voting rights (one vote per share) and do not confer any incidents of economic ownership to the holders thereof; and (ii) are forfeited and cancelled, on a one-for-one basis, without consideration, upon the redemption of Common Units for shares of Class A common stock, or cash, at the Issuer's election.  See Footnote 3.</footnote>
        <footnote id="F2">Represents Common Units, which are redeemable on a one-for-one basis for shares of Class A common stock, or, at the election of the Issuer, cash equal to a volume weighted average market price of a share of Class A common stock.  The Common Units were acquired pursuant to a reclassification (exempt under Section 16b-7) and reorganization of the Issuer in connection with the Issuer's initial public offering (&quot;IPO&quot;). One share of the Issuer's Class B common stock was issued for each Common Unit held by the reporting person. See footnote 1.</footnote>
        <footnote id="F3">The Common Units are redeemable on a one-for-one basis for shares of Class A common stock, or, at the election of the Issuer, cash equal to a volume weighted average market price of a share of Class A common stock.  The Common Units have no expiration date. Upon any redemption of Common Units, one share of Class B common stock is automatically forfeited and cancelled for each Common Unit so redeemed.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Peter Thomas and Steven Thomas, Trustee for Tom &amp; Leslie Thomas Children's Trust</signatureName>
        <signatureDate>2018-02-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
