Exhibit 24
Power of Attorney for Section 16 Reporting Obligations
Know all by these presents, that the undersigned hereby makes, constitutes and appoints Anton Pamer as the undersigned’s true and lawful attorney-in-fact, with full power and authority as hereinafter described on behalf of and in the name, place and stead of the undersigned to:
(1) prepare, execute, acknowledge, deliver and file Forms 3, 4, and 5 (including any amendments thereto) with respect to the securities issued by Vertex, Inc., a Delaware corporation (the “Company”), with the United States Securities and Exchange Commission, any national securities exchange and the Company, as considered necessary or advisable under Section 16(a) of the Securities Exchange Act of 1934 and the rules and regulations promulgated thereunder, as amended from time to time (the “Exchange Act”);
(2) seek or obtain, as the undersigned’s representative and on the undersigned’s behalf, information on transactions in the Company’s securities from any third party, including brokers, employee benefit plan administrators and trustees, and the undersigned hereby authorizes any such person to release any such information to the undersigned and approves and ratifies any such release of information; and
(3) perform any and all other acts which in the discretion of such attorney(s)-in-fact are necessary or desirable for and on behalf of the undersigned in connection with the foregoing, including, without limitation, preparing, executing, acknowledging, delivering and filing in the undersigned’s name and on the undersigned’s behalf, and submitting to the SEC a Form ID, including amendments thereto, and any other documents necessary or appropriate to obtain and renew codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 16(a) of the Exchange Act.
The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney in fact’s substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorney-in-fact, in serving in such capacity at the request and on behalf of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned’s responsibilities to comply with, or any liability for the failure to comply with, any provision of Section 16 of the Exchange Act.
This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigned’s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 4th day of October, 2024.
| | /s/ Jeffrey Westphal |
| | Jeffrey Westphal |
