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>0001192274</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001025835</issuerCik>
        <issuerName>Enterprise Financial Services Corp</issuerName>
        <secFileNumber>001-15373</secFileNumber>
        <issuerAddress>
          <com:street1>150 North Meramec</com:street1>
          <com:city>Clayton</com:city>
          <com:stateOrCountry>MO</com:stateOrCountry>
          <com:zipCode>63105</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>314-810-3774</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Richard Sanborn</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>UBS</name>
          <address>
            <com:street1>1200 Harbor Boulevard</com:street1>
            <com:city>Weehawken</com:city>
            <com:stateOrCountry>NJ</com:stateOrCountry>
            <com:zipCode>07086</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>2100</noOfUnitsSold>
        <aggregateMarketValue>94500</aggregateMarketValue>
        <noOfUnitsOutstanding>37385651</noOfUnitsOutstanding>
        <approxSaleDate>12/15/2023</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>COMMON STOCK</securitiesClassTitle>
        <acquiredDate>12/27/2017</acquiredDate>
        <natureOfAcquisitionTransaction>Open Market Purchase</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Open Market Purchase</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2100</amountOfSecuritiesAcquired>
        <paymentDate>12/27/2017</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>12/15/2023</noticeDate>
        <signature>Richard Sanborn</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 2749}]
text: 144
  0001192274
  XXXXXXXX
  LIVE
  0001025835
  Enterprise Financial Services Corp
  001-15373
  150 North Meramec
  Clayton
  MO
  63105
  314-810-3774
  Richard Sanborn
  Director
  Common Stock
  UBS
  1200 Harbor Boulevard
  Weehawken
  NJ
  07086
  2100
  94500
  37385651
  12/15/2023
  NASDAQ
  COMMON STOCK
  12/27/2017
  Open Market Purchase
  Open Market Purchase
  N
  2100
  12/27/2017
  Cash
  Y
  12/15/2023
  Richard Sanborn