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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2020-01-01</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001525773</issuerCik>
        <issuerName>Intelsat S.A.</issuerName>
        <issuerTradingSymbol>I</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001467310</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-29</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001467312</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-30</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001467313</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-31</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001467314</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-32</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001467315</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-33</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001467316</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-34</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001467317</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-35 SC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001467318</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-36 SC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001570307</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-37</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001467320</rptOwnerCik>
            <rptOwnerName>BC European Capital VIII-38 SC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERITAGE HALL, LE MARCHANT STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. PETER PORT</rptOwnerCity>
            <rptOwnerState>Y7</rptOwnerState>
            <rptOwnerZipCode>X0 GY1 4HY</rptOwnerZipCode>
            <rptOwnerStateDescription>GUERNSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>48468543</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">As described in the Reporting Persons' Schedule 13G/A, filed with the U.S. Securities and Exchange Commission on February 14, 2019 with respect to the Issuer's common shares, the Reporting Persons may be deemed to have shared voting and investment power, and may be deemed to have shared beneficial ownership, with respect to the Issuer's common shares held by Serafina S.A.  Each of the Reporting Persons, with the exception of CIE Management II Limited and LMBO Europe SAS, disclaims beneficial ownership with respect to any common shares of the Issuer owned by the other Reporting Persons.</footnote>
    </footnotes>

    <remarks>*The persons listed on Exhibit 99.1 hereto (collectively, the &quot;Reporting Persons&quot;) are filing a joint Form 3 report, but there are too many of them to file electronically on the same Form 3.  Therefore, the Reporting Persons are executing and jointly filing five identical Form 3 reports with respect to the Issuer's securities.  See Exhibit 99.1 filed herewith and incorporated herein by reference for information with respect to each of the Reporting Persons.  This Form 3 is the fourth of five Form 3 reports mentioned above.

EXHIBIT LIST

Exhibit 99.1 - Joint Filer Information</remarks>

    <ownerSignature>
        <signatureName>/s/ Jason Schaefer as attorney-in-fact</signatureName>
        <signatureDate>2020-02-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
