content: <?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>0001819244</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <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>ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>10% Stockholder</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Class A Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill Lynch</name>
          <address>
            <com:street1>724 West Lancaster Ave</com:street1>
            <com:street2>Suite 100</com:street2>
            <com:city>Wayne</com:city>
            <com:stateOrCountry>PA</com:stateOrCountry>
            <com:zipCode>19087</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>158900</noOfUnitsSold>
        <aggregateMarketValue>5690209.00</aggregateMarketValue>
        <noOfUnitsOutstanding>65360518</noOfUnitsOutstanding>
        <approxSaleDate>08/26/2024</approxSaleDate>
        <securitiesExchangeName>Nasdaq</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A Common Stock</securitiesClassTitle>
        <acquiredDate>10/05/2001</acquiredDate>
        <natureOfAcquisitionTransaction>Acquired as gift</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Irrevocable Trust Jeffrey Westphal</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>Y</isGiftTransaction>
        <donarAcquiredDate>10/05/2001</donarAcquiredDate>
        <amountOfSecuritiesAcquired>158900</amountOfSecuritiesAcquired>
        <paymentDate>10/05/2001</paymentDate>
        <natureOfPayment>N/A</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>08/23/2024</noticeDate>
        <signature>Joshua Levine, as Trustee</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 2951}]
text: 144
  0001819244
  XXXXXXXX
  LIVE
  0001806837
  Vertex, Inc.
  001-39413
  2301 RENAISSANCE BOULEVARD
  KING OF PRUSSIA
  PA
  19406
  (800) 355-3500
  ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001
  10% Stockholder
  Class A Common Stock
  Merrill Lynch
  724 West Lancaster Ave
  Suite 100
  Wayne
  PA
  19087
  158900
  5690209.00
  65360518
  08/26/2024
  Nasdaq
  Class A Common Stock
  10/05/2001
  Acquired as gift
  Irrevocable Trust Jeffrey Westphal
  Y
  10/05/2001
  158900
  10/05/2001
  N/A
  Y
  08/23/2024
  Joshua Levine, as Trustee