content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001441444</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001361538</issuerCik>
        <issuerName>Primoris Services Corp</issuerName>
        <secFileNumber>001-34145</secFileNumber>
        <issuerAddress>
          <com:street1>2300 N. Field Street</com:street1>
          <com:street2>Suite 1900</com:street2>
          <com:city>Dallas</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>75201</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>214-740-5600</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>John M Perisich</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Affiliate</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue</com:street1>
            <com:street2>6th Floor</com:street2>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>19205</noOfUnitsSold>
        <aggregateMarketValue>637221</aggregateMarketValue>
        <noOfUnitsOutstanding>53328873</noOfUnitsOutstanding>
        <approxSaleDate>09/08/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>03/26/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>19205</amountOfSecuritiesAcquired>
        <paymentDate>03/26/2021</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>The shares on this filing were acquired 03/26/21 - 08/09/23 and are being sold by Perisich Family Trust, John Perisich as trustee</remarks>
      <noticeSignature>
        <noticeDate>09/08/2023</noticeDate>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for John M Perisich</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3045}]
text: 144
  0001441444
  XXXXXXXX
  LIVE
  0001361538
  Primoris Services Corp
  001-34145
  2300 N. Field Street
  Suite 1900
  Dallas
  TX
  75201
  214-740-5600
  John M Perisich
  Affiliate
  Common
  J.P. Morgan Securities LLC
  390 Madison Avenue
  6th Floor
  New York
  NY
  10017
  19205
  637221
  53328873
  09/08/2023
  NYSE
  Common
  03/26/2021
  Compensation
  Issuer
  N
  19205
  03/26/2021
  Compensation
  Y
  The shares on this filing were acquired 03/26/21 - 08/09/23 and are being sold by Perisich Family Trust, John Perisich as trustee
  09/08/2023
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for John M Perisich