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      <filer>
        <filerCredentials>
          <cik>0001976999</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
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  <formData>
    <issuerInfo>
      <issuerCik>0001031308</issuerCik>
      <issuerName>BENTLEY SYSTEMS INC</issuerName>
      <secFileNumber>001-39548</secFileNumber>
      <issuerAddress>
        <com:street1>690 PENNSYLVANIA DR</com:street1>
        <com:city>EXTON</com:city>
        <com:stateOrCountry>PA</com:stateOrCountry>
        <com:zipCode>19341</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>610-458-5000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Keith A Bentley 2012 Gift Trust FBO David Bentley</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Member of immediate family of any of the foregoing</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Class B</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab Corporation</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>30000</noOfUnitsSold>
      <aggregateMarketValue>1389300.00</aggregateMarketValue>
      <noOfUnitsOutstanding>281770044</noOfUnitsOutstanding>
      <approxSaleDate>05/10/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Class B</securitiesClassTitle>
      <acquiredDate>02/23/2017</acquiredDate>
      <natureOfAcquisitionTransaction>Gift</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Keith Bentley</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>Y</isGiftTransaction>
      <donarAcquiredDate>08/14/1987</donarAcquiredDate>
      <amountOfSecuritiesAcquired>30000</amountOfSecuritiesAcquired>
      <paymentDate>02/23/2017</paymentDate>
      <natureOfPayment>Equity Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/10/2023</noticeDate>
      <signature>Corinne P Bentley</signature>
    </noticeSignature>
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144
0001976999
XXXXXXXX
LIVE
0001031308
BENTLEY SYSTEMS INC
001-39548
690 PENNSYLVANIA DR
EXTON
PA
19341
610-458-5000
Keith A Bentley 2012 Gift Trust FBO David Bentley
Member of immediate family of any of the foregoing
Common Class B
Charles Schwab Corporation
3000 Schwab Way
Westlake
TX
76262
30000
1389300.00
281770044
05/10/2023
NASDAQ
Common Class B
02/23/2017
Gift
Keith Bentley
Y
08/14/1987
30000
02/23/2017
Equity Compensation
Y
05/10/2023
Corinne P Bentley