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        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001825193</cik>
                    <ccc>XXXXXXXX</ccc>
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            <liveTestFlag>LIVE</liveTestFlag>



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        <issuerInfo>
            <issuerCik>0001031308</issuerCik>
            <issuerName>BENTLEY SYS INC COM CL B</issuerName>
            <secFileNumber>001-39548</secFileNumber>
            <issuerAddress>
                <ns2:street1>685 Stockton Drive</ns2:street1>
                <ns2:city>Exton</ns2:city>
                <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                <ns2:zipCode>19341</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>610455000</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MSL FBO DAVID R. SHAMAN &amp;SABINE SHAMAN JT TEN</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>38th Fl.</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>6454</noOfUnitsSold>
            <aggregateMarketValue>271519.78</aggregateMarketValue>
            <noOfUnitsOutstanding>278830726</noOfUnitsOutstanding>
            <approxSaleDate>05/09/2023</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>12/24/2020</acquiredDate>
            <natureOfAcquisitionTransaction>Previously Exercised Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER </nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>6454</amountOfSecuritiesAcquired>
            <paymentDate>12/24/2020</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>05/09/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>12/16/2022</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ David R Shaman</signature>
        </noticeSignature>
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144
0001825193
XXXXXXXX
LIVE
0001031308
BENTLEY SYS INC COM CL B
001-39548
685 Stockton Drive
Exton
PA
19341
610455000
MSL FBO DAVID R. SHAMAN &SABINE SHAMAN JT TEN
Officer
COMMON
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Fl.
New York
NY
10004
6454
271519.78
278830726
05/09/2023
NASDAQ
Common
12/24/2020
Previously Exercised Stock Options
ISSUER
N
6454
12/24/2020
Cash
Y
05/09/2023
12/16/2022
/s/ David R Shaman