<SEC-DOCUMENT>0001209191-20-047372.txt : 20200818
<SEC-HEADER>0001209191-20-047372.hdr.sgml : 20200818
<ACCEPTANCE-DATETIME>20200818203629
ACCESSION NUMBER:		0001209191-20-047372
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200814
FILED AS OF DATE:		20200818
DATE AS OF CHANGE:		20200818

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Matz Gregory W
		CENTRAL INDEX KEY:			0001536574

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38371
		FILM NUMBER:		201115109

	MAIL ADDRESS:	
		STREET 1:		1 WHITE OAK WAY
		CITY:			NOVATO
		STATE:			CA
		ZIP:			94949

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ONE STOP SYSTEMS, INC.
		CENTRAL INDEX KEY:			0001394056
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPUTERS [3571]
		IRS NUMBER:				330885351
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2235 ENTERPRISE ST STE 110
		CITY:			ESCONDIDO
		STATE:			CA
		ZIP:			92029
		BUSINESS PHONE:		760-745-9883

	MAIL ADDRESS:	
		STREET 1:		2235 ENTERPRISE ST STE 110
		CITY:			ESCONDIDO
		STATE:			CA
		ZIP:			92029

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ONE STOP SYSTEMS INC
		DATE OF NAME CHANGE:	20070322
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-08-14</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001394056</issuerCik>
        <issuerName>ONE STOP SYSTEMS, INC.</issuerName>
        <issuerTradingSymbol>OSS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001536574</rptOwnerCik>
            <rptOwnerName>Matz Gregory W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2235 ENTERPRISE STREET #110</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ESCONDIDO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92029</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-08-14</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2.28</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By The Matz Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Gregory W. Matz</signatureName>
        <signatureDate>2020-08-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
