content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001441075</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, SUITE 1900</com:street1>
          <com:city>DALLAS</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>75201</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>214-740-5600</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Cook Stephen C.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Northern Trust Securites, Inc</name>
          <address>
            <com:street1>1801 Post Oak Blvd Ste 500</com:street1>
            <com:city>Houston</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>77056</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>2090</noOfUnitsSold>
        <aggregateMarketValue>148076.00</aggregateMarketValue>
        <noOfUnitsOutstanding>53747628</noOfUnitsOutstanding>
        <approxSaleDate>05/14/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/12/2016</acquiredDate>
        <natureOfAcquisitionTransaction>Payment for service rendered</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>PRIM</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2090</amountOfSecuritiesAcquired>
        <paymentDate>02/12/2016</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Stephen C Cook</name>
          <address>
            <com:street1>2300 N Field st ste 1900</com:street1>
            <com:city>Dallas</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>75201</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>PRIM</securitiesClassTitle>
        <saleDate>05/08/2025</saleDate>
        <amountOfSecuritiesSold>80000</amountOfSecuritiesSold>
        <grossProceeds>55837.49</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>05/14/2025</noticeDate>
        <signature>/s/ Carmen Zamores as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Cook Stephen C.</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3437}]
text: 144
  0001441075
  XXXXXXXX
  LIVE
  0001361538
  Primoris Services Corp
  001-34145
  2300 N. FIELD STREET, SUITE 1900
  DALLAS
  TX
  75201
  214-740-5600
  Cook Stephen C.
  Director
  Common
  Northern Trust Securites, Inc
  1801 Post Oak Blvd Ste 500
  Houston
  TX
  77056
  2090
  148076.00
  53747628
  05/14/2025
  NYSE
  Common
  02/12/2016
  Payment for service rendered
  PRIM
  N
  2090
  02/12/2016
  Compensation
  N
  Stephen C Cook
  2300 N Field st ste 1900
  Dallas
  TX
  75201
  PRIM
  05/08/2025
  80000
  55837.49
  05/14/2025
  /s/ Carmen Zamores as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Cook Stephen C.