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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 K3FCQcIsTYj+YdIzY+2q14QPMBWN0xYKV5tZ+SPhq5/9M/GaogIEBTiiScEsolyZ
 FVIiZvV1rBRmNOEme4hnLg==

<SEC-DOCUMENT>0000904454-08-000090.txt : 20080227
<SEC-HEADER>0000904454-08-000090.hdr.sgml : 20080227
<ACCEPTANCE-DATETIME>20080227211403
ACCESSION NUMBER:		0000904454-08-000090
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080225
FILED AS OF DATE:		20080227
DATE AS OF CHANGE:		20080227

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SAVVIS, Inc.
		CENTRAL INDEX KEY:			0001058444
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		IRS NUMBER:				431809960
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1 SAVVIS PARKWAY
		CITY:			TOWN & COUNTRY
		STATE:			MO
		ZIP:			63017
		BUSINESS PHONE:		314-628-7000

	MAIL ADDRESS:	
		STREET 1:		1 SAVVIS PARKWAY
		CITY:			TOWN & COUNTRY
		STATE:			MO
		ZIP:			63017

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SAVVIS COMMUNICATIONS CORP
		DATE OF NAME CHANGE:	19991112

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SAVVIS HOLDINGS CORP
		DATE OF NAME CHANGE:	19991020

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WCAS MANAGEMENT CORP
		CENTRAL INDEX KEY:			0001212983

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29375
		FILM NUMBER:		08648278

	BUSINESS ADDRESS:	
		STREET 1:		320 PARK AVENUE STE 2500
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		2128939500

	MAIL ADDRESS:	
		STREET 1:		320 PARK AVENUE STE 2500
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-02-25</periodOfReport>

    <issuer>
        <issuerCik>0001058444</issuerCik>
        <issuerName>SAVVIS, Inc.</issuerName>
        <issuerTradingSymbol>SVVS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001212983</rptOwnerCik>
            <rptOwnerName>WCAS MANAGEMENT CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O WELSH, CARSON, ANDERSON &amp; STOWE</rptOwnerStreet1>
            <rptOwnerStreet2>320 PARK AVENUE, SUITE 2500</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-02-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>131397</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>19.68</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>145246</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/David Mintz, Attorney-in-Fact</signatureName>
        <signatureDate>2008-02-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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