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          <ccc>XXXXXXXX</ccc>
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      <issuerCik>0001806837</issuerCik>
      <issuerName>Vertex, Inc.</issuerName>
      <secFileNumber>001-39413</secFileNumber>
      <issuerAddress>
        <com:street1>2301 RENAISSANCE BOULEVARD</com:street1>
        <com:city>KING OF PRUSSIA</com:city>
        <com:stateOrCountry>PA</com:stateOrCountry>
        <com:zipCode>19406</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>(800) 355-3500</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>SCHWAB JOHN R</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
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    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Wells Fargo Advisors</name>
        <address>
          <com:street1>1 N. Jefferson Ave</com:street1>
          <com:city>St. Louis</com:city>
          <com:stateOrCountry>MO</com:stateOrCountry>
          <com:zipCode>63103</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>30000</noOfUnitsSold>
      <aggregateMarketValue>587170.34</aggregateMarketValue>
      <noOfUnitsOutstanding>53860965</noOfUnitsOutstanding>
      <approxSaleDate>05/15/2023</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
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      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>05/15/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Options</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>30000</amountOfSecuritiesAcquired>
      <paymentDate>05/15/2023</paymentDate>
      <natureOfPayment>Wire</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/15/2023</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>12/16/2022</planAdoptionDate>
      </planAdoptionDates>
      <signature>John R. Schwab</signature>
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144
0001249289
XXXXXXXX
LIVE
0001806837
Vertex, Inc.
001-39413
2301 RENAISSANCE BOULEVARD
KING OF PRUSSIA
PA
19406
(800) 355-3500
SCHWAB JOHN R
Officer
Common
Wells Fargo Advisors
1 N. Jefferson Ave
St. Louis
MO
63103
30000
587170.34
53860965
05/15/2023
Nasdaq
Common
05/15/2023
Stock Options
Issuer
N
30000
05/15/2023
Wire
Y
05/15/2023
12/16/2022
John R. Schwab