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        <filer>
          <filerCredentials>
            <cik>0001462535</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
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      <issuerInfo>
        <issuerCik>0000052988</issuerCik>
        <issuerName>JACOBS SOLUTIONS INC.</issuerName>
        <secFileNumber>001-07463</secFileNumber>
        <issuerAddress>
          <com:street1>1999 BRYAN STREET, SUITE 1200</com:street1>
          <com:city>DALLAS</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>75201</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>214-583-8500</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Berryman Kevin C</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>1500</noOfUnitsSold>
        <aggregateMarketValue>197565.00</aggregateMarketValue>
        <noOfUnitsOutstanding>125917550</noOfUnitsOutstanding>
        <approxSaleDate>10/30/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>11/16/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>1500</amountOfSecuritiesAcquired>
        <paymentDate>11/16/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Kevin Berryman</name>
          <address>
            <com:street1>1999 Bryan Street</com:street1>
            <com:street2>Suite 3500</com:street2>
            <com:city>Dallas</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75201</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>10/02/2023</saleDate>
        <amountOfSecuritiesSold>1500</amountOfSecuritiesSold>
        <grossProceeds>204150.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Kevin Berryman</name>
          <address>
            <com:street1>1999 Bryan Street</com:street1>
            <com:street2>Suite 3500</com:street2>
            <com:city>Dallas</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75201</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>08/30/2023</saleDate>
        <amountOfSecuritiesSold>1500</amountOfSecuritiesSold>
        <grossProceeds>203775.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Kevin Berryman</name>
          <address>
            <com:street1>1999 Bryan Street</com:street1>
            <com:street2>Suite 3500</com:street2>
            <com:city>Dallas</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75201</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>07/31/2023</saleDate>
        <amountOfSecuritiesSold>1500</amountOfSecuritiesSold>
        <grossProceeds>187950.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>10/30/2023</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>02/28/2023</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Kevin C. Berryman</signature>
      </noticeSignature>
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text: 144
  0001462535
  XXXXXXXX
  LIVE
  0000052988
  JACOBS SOLUTIONS INC.
  001-07463
  1999 BRYAN STREET, SUITE 1200
  DALLAS
  TX
  75201
  214-583-8500
  Berryman Kevin C
  Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  1500
  197565.00
  125917550
  10/30/2023
  NYSE
  Common
  11/16/2022
  Restricted Stock Vesting
  Issuer
  N
  1500
  11/16/2022
  Compensation
  N
  Kevin Berryman
  1999 Bryan Street
  Suite 3500
  Dallas
  TX
  75201
  Common
  10/02/2023
  1500
  204150.00
  Kevin Berryman
  1999 Bryan Street
  Suite 3500
  Dallas
  TX
  75201
  Common
  08/30/2023
  1500
  203775.00
  Kevin Berryman
  1999 Bryan Street
  Suite 3500
  Dallas
  TX
  75201
  Common
  07/31/2023
  1500
  187950.00
  10/30/2023
  02/28/2023
  /s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Kevin C. Berryman