<?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>0001286202</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>MASHINSKI CARLA S</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>The Charles Schwab &amp; Co. Inc.</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>3883</noOfUnitsSold>
      <aggregateMarketValue>206847.00</aggregateMarketValue>
      <noOfUnitsOutstanding>53640127</noOfUnitsOutstanding>
      <approxSaleDate>06/06/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/19/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>3883</amountOfSecuritiesAcquired>
      <paymentDate>02/19/2021</paymentDate>
      <natureOfPayment>Services Rendered</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>DAVID JAN MASHINSKI &amp; CARLA SUZANNE MASHINSKI DESIGNATED BENE PLAN/TOD</remarks>
    <noticeSignature>
      <noticeDate>06/06/2024</noticeDate>
      <signature>Carla Mashinski</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 2823}]
144
0001286202
XXXXXXXX
LIVE
0001361538
Primoris Services Corp
001-34145
2300 N. FIELD STREET, SUITE 1900
DALLAS
TX
75201
214-740-5600
MASHINSKI CARLA S
Director
Common
The Charles Schwab & Co. Inc.
3000 Schwab Way
Westlake
TX
76262
3883
206847.00
53640127
06/06/2024
NYSE
Common
02/19/2021
Compensation
Issuer
N
3883
02/19/2021
Services Rendered
Y
DAVID JAN MASHINSKI & CARLA SUZANNE MASHINSKI DESIGNATED BENE PLAN/TOD
06/06/2024
Carla Mashinski