-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 FeHejp/em2LX0XGHT4oWsRWFJvMP0QfiqOmQv2wbqPsTcy6dBvPgMPWvtHnZwld3
 7BK632Onm6cqadEzrqOqOw==

<SEC-DOCUMENT>0001181431-07-050459.txt : 20070807
<SEC-HEADER>0001181431-07-050459.hdr.sgml : 20070807
<ACCEPTANCE-DATETIME>20070807160359
ACCESSION NUMBER:		0001181431-07-050459
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070807
FILED AS OF DATE:		20070807
DATE AS OF CHANGE:		20070807

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NCI, Inc.
		CENTRAL INDEX KEY:			0001334478
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
		IRS NUMBER:				203211574
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		11730 PLAZA AMERICA DRIVE
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190
		BUSINESS PHONE:		(703) 707-6900

	MAIL ADDRESS:	
		STREET 1:		11730 PLAZA AMERICA DRIVE
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ALLEN JAMES P
		CENTRAL INDEX KEY:			0001076790

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51579
		FILM NUMBER:		071031687

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		7035065005

	MAIL ADDRESS:	
		STREET 1:		C/O GRC INTERNATIONAL INC
		STREET 2:		1900 GALLOWS RD
		CITY:			VIENNA
		STATE:			VA
		ZIP:			22182
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd168668.xml
<DESCRIPTION>ALLEN 8/7/07 PURCHASE
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-08-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001334478</issuerCik>
        <issuerName>NCI, Inc.</issuerName>
        <issuerTradingSymbol>NCIT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001076790</rptOwnerCik>
            <rptOwnerName>ALLEN JAMES P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11730 PLAZA AMERICA DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RESTON</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>20190</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-08-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.15</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>27685</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">includes 7,685 exercisable options</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Michele R. Cappello, Attorney in fact</signatureName>
        <signatureDate>2007-08-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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