Vertex, Inc.

Forward-Looking Statements

Any statements made in this press release that are not statements of historical fact, including statements about our beliefs and expectations, are forward-looking statements and should be evaluated as such. Forward-looking statements include information concerning possible or assumed future results of operations, including descriptions of our business plan and strategies, and our stock repurchase program. Forward-looking statements are based on Vertex management’s beliefs, as well as assumptions made by, and information currently available to, them. Because such statements are based on expectations as to future financial and operating results and are not statements of fact, actual results may differ materially from those projected. Factors which may cause actual results to differ materially from current expectations include, but are not limited to: our ability to maintain and grow revenue from existing customers and new customers, and expand their usage of our solutions; our ability to maintain and expand our strategic relationships with third parties; our ability to adapt to technological change and successfully introduce new solutions or provide updates to existing solutions; risks related to failures in information technology or infrastructure; risks related to our reliance on government infrastructure to support our e-invoicing services; challenges in using and managing use of Artificial Intelligence in our business; incorrect or improper implementation, integration or use of our solutions; failure to attract and retain qualified technical and tax-content personnel; competitive pressures from other tax software and service providers and challenges of convincing businesses using native enterprise resource planning functions to switch to our software; our ability to accurately forecast our revenue and other future results of operations based on recent success; our ability to offer specific software deployment methods based on changes to customers’ and partners’ software systems; our ability to continue making significant investments in software development and equipment; our ability to sustain and expand revenues, maintain profitability, and to effectively manage our anticipated growth; our ability to successfully diversify our solutions by developing or introducing new solutions or acquiring and integrating additional businesses, products, services, or content; our ability to successfully integrate acquired businesses and to realize the anticipated benefits of such acquisitions; risks related to the fluctuations in our results of operations; risks related to our expanding international operations; our exposure to liability from errors, delays, fraud or system failures, which may not be covered by insurance; our ability to adapt to organizational changes and effectively implement strategic initiatives; risks related to our determinations of customers’ transaction tax and tax payments; risks related to changes in tax laws and regulations or their interpretation or enforcement; our ability to manage cybersecurity and data privacy risks; our involvement in material legal proceedings and audits; risks related to undetected errors, bugs or defects in our software; risks related to utilization of open-source software, business processes and information systems; our ability to effectively protect, maintain, and enhance our brand; changes in application, scope, interpretation or enforcement of laws and regulations; global economic weakness and uncertainties, including the economic uncertainty created by the changing legal, regulatory, or taxation landscape in the United States, and disruption in the capital and credit markets; business disruptions related to natural disasters, epidemic outbreaks, including a global endemic or pandemic, terrorist acts, political events, or other events outside of our control; our ability to comply with anti-corruption, anti-bribery, and similar laws; our ability to protect our intellectual property; changes in interest rates, security ratings and market perceptions of the industry in which we operate, or our ability to obtain capital on commercially reasonable terms or at all; our ability to maintain an effective system of disclosure controls and internal control over financial reporting, or ability to remediate any material weakness in our internal controls; risks related to our Class A common stock and controlled company status; risks related to our stock repurchase program; risks related to our indebtedness and adherence to the covenants under our debt instruments; our expectations regarding the effects of the Capped Call Transactions (as defined in our Form 10-K) and regarding actions of the Option Counterparties (as defined in our Form 10-K) and/or their respective affiliates; risks associated with our Value Creation Plan; and the other factors described under the heading “Risk Factors” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 (“Form 10-K”), filed with the Securities and Exchange Commission (the “SEC”) on February 24, 2026, as may be subsequently updated by our other SEC filings. Copies of such filings may be obtained from the Company or the SEC.

All forward-looking statements reflect our beliefs and assumptions only as of the date of this press release. We undertake no obligation to update forward-looking statements to reflect future events or circumstances.