<SEC-DOCUMENT>0001415889-25-002780.txt : 20250203
<SEC-HEADER>0001415889-25-002780.hdr.sgml : 20250203
<ACCEPTANCE-DATETIME>20250203174701
ACCESSION NUMBER:		0001415889-25-002780
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250130
FILED AS OF DATE:		20250203
DATE AS OF CHANGE:		20250203

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MCNAMARA ROBERT A
		CENTRAL INDEX KEY:			0001194760
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07463
		FILM NUMBER:		25584024

	MAIL ADDRESS:	
		STREET 1:		C/O FLUOR CORP
		STREET 2:		ONE ENTERPRISE DR
		CITY:			ALISO VIEJO
		STATE:			CA
		ZIP:			92656

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			JACOBS SOLUTIONS INC.
		CENTRAL INDEX KEY:			0000052988
		STANDARD INDUSTRIAL CLASSIFICATION:	HEAVY CONSTRUCTION OTHER THAN BUILDING CONST - CONTRACTORS [1600]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		IRS NUMBER:				954081636
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0926

	BUSINESS ADDRESS:	
		STREET 1:		1999 BRYAN STREET, SUITE 3500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201
		BUSINESS PHONE:		214-583-8500

	MAIL ADDRESS:	
		STREET 1:		1999 BRYAN STREET, SUITE 3500
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	JACOBS ENGINEERING GROUP INC /DE/
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4-02032025_100257.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-01-30</periodOfReport>

    <issuer>
        <issuerCik>0000052988</issuerCik>
        <issuerName>JACOBS SOLUTIONS INC.</issuerName>
        <issuerTradingSymbol>J</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001194760</rptOwnerCik>
            <rptOwnerName>MCNAMARA ROBERT A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1999 BRYAN STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3500</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-01-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1359</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>139.82</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17135</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents the receipt of restricted stock units pursuant to the Company's Outside Director Stock Plan. Each restricted stock unit represents the right to receive one share of Jacobs common stock at the time of vesting. The restricted stock units will become 100% vested on the first to occur of the following: (i) the one-year anniversary of the award date or (ii) the date of the Company's 2026 annual shareholder meeting occurring after December 31, 2025, provided that Director remains a director of the Company continuously through such vesting date</footnote>
        <footnote id="F2">The number of shares included in respect of previously reported grants of restricted stock units was increased to reflect an equitable adjustment in connection with the spin-off distribution of the Company's Critical Mission Solutions and Cyber &amp; Intelligence government services businesses and the merger of these businesses with Amentum Parent Holdings LLC.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Priya Howell - Attorney-in-Fact for Robert A. McNamara</signatureName>
        <signatureDate>2025-02-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
