-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001181431-10-013466.txt : 20100303
<SEC-HEADER>0001181431-10-013466.hdr.sgml : 20100303
<ACCEPTANCE-DATETIME>20100303125747
ACCESSION NUMBER:		0001181431-10-013466
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
ITEM INFORMATION:		Investment Company Act Section 3(c)
ITEM INFORMATION:		Section 3(c)(7)
FILED AS OF DATE:		20100303
DATE AS OF CHANGE:		20100303
EFFECTIVENESS DATE:		20100303

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CP V COINVESTMENT B, L.P.
		CENTRAL INDEX KEY:			0001458151
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-127609
		FILM NUMBER:		10652429

	BUSINESS ADDRESS:	
		STREET 1:		THE CARLYLE GROUP
		STREET 2:		1001 PENNSYLVANIA AVENUE, NW
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20004
		BUSINESS PHONE:		202-729-5626

	MAIL ADDRESS:	
		STREET 1:		THE CARLYLE GROUP
		STREET 2:		1001 PENNSYLVANIA AVENUE, NW
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20004

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CP V COINVESTMENT B LP
		DATE OF NAME CHANGE:	20090310
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <schemaVersion>X0603</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001458151</cik>
        <entityName>CP V COINVESTMENT B, L.P.</entityName>
        <issuerAddress>
            <street1>The Carlyle Group</street1>
            <street2>1001 Pennsylvania Avenue, NW</street2>
            <city>Washington</city>
            <stateOrCountry>DC</stateOrCountry>
            <zipCode>20004</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>202-729-5626</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList></issuerPreviousNameList>
        <edgarPreviousNameList>
            <previousName>CP V COINVESTMENT B LP</previousName>
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        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2007</value>
        </yearOfInc>
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    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>None</firstName>
                <lastName>TC Group V Managing GP, L.L.C.</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>The Carlyle Group</street1>
                <street2>1001 Pennsylvania Ave., N.W., Ste. 220 S</street2>
                <city>Washington</city>
                <stateOrCountry>DC</stateOrCountry>
                <zipCode>20004</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Promoter</relationship>
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            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Daniel</firstName>
                <middleName>F.</middleName>
                <lastName>Akerson</lastName>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>James</firstName>
                <middleName>A.</middleName>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Karen</firstName>
                <lastName>Bechtel</lastName>
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                <firstName>Curtis</firstName>
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            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Peter</firstName>
                <lastName>Clare</lastName>
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            <relatedPersonRelationshipList>
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            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>William</firstName>
                <middleName>E.</middleName>
                <lastName>Conway, Jr.</lastName>
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            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Daniel</firstName>
                <middleName>A.</middleName>
                <lastName>D'Aniello</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>The Carlyle Group</street1>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jeffrey</firstName>
                <middleName>W.</middleName>
                <lastName>Ferguson</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>The Carlyle Group</street1>
                <street2>1001 Pennsylvania Ave., N.W., Ste. 220 S</street2>
                <city>Washington</city>
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                <zipCode>20004</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Francis</firstName>
                <lastName>Finelli</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>The Carlyle Group</street1>
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                <zipCode>20004</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ian</firstName>
                <lastName>Fujiyama</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>The Carlyle Group</street1>
                <street2>1001 Pennsylvania Ave., N.W., Ste. 220 S</street2>
                <city>Washington</city>
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                <zipCode>20004</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Allan</firstName>
                <middleName>M.</middleName>
                <lastName>Holt</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>The Carlyle Group</street1>
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            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Sandra</firstName>
                <middleName>J.</middleName>
                <lastName>Horbach</lastName>
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            <relatedPersonAddress>
                <street1>The Carlyle Group</street1>
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            <relatedPersonRelationshipList>
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            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gregory</firstName>
                <middleName>S.</middleName>
                <lastName>Ledford</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
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            </relatedPersonAddress>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Elliot</firstName>
                <lastName>Merrill</lastName>
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            <relatedPersonAddress>
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            <relationshipClarification>of the General Partner of the General Partner.</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Todd</firstName>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Adam</firstName>
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        <relatedPersonInfo>
            <relatedPersonName>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Private Equity Fund</investmentFundType>
                <is40Act>false</is40Act>
            </investmentFundInfo>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
            <item>3C</item>
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        </federalExemptionsExclusions>
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            <newOrAmendment>
                <isAmendment>true</isAmendment>
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            <dateOfFirstSale>
                <value>2007-05-01</value>
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        <typesOfSecuritiesOffered>
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        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>108758215</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>true</hasNonAccreditedInvestors>
            <numberNonAccreditedInvestors>8</numberNonAccreditedInvestors>
            <totalNumberAlreadyInvested>64</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
                <isEstimate>true</isEstimate>
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                <dollarAmount>0</dollarAmount>
                <isEstimate>true</isEstimate>
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        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>CP V Coinvestment B, L.P.</issuerName>
                <signatureName>/s/ R. Rainey Hoffman</signatureName>
                <nameOfSigner>R. Rainey Hoffman</nameOfSigner>
                <signatureTitle>Authorized Signatory</signatureTitle>
                <signatureDate>2010-03-03</signatureDate>
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