Definitive Healthcare Corp.

This Quarterly Report contains forward-looking statements. Forward-looking statements can be identified by words such as “anticipates,” “intends,” “plans,” “seeks,” “believes,” “estimates,” “expects” and similar references to future periods, or by the inclusion of forecasts or projections. Examples of forward-looking statements include, but are not limited to, statements we make regarding the outlook for our future business and financial performance, such as those contained in “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Forward-looking statements are based on our current expectations and assumptions regarding our business, the economy, and other future conditions. Because forward-looking statements relate to the future, by their nature, they are subject to inherent uncertainties, risks, and changes in circumstances that are difficult to predict. As a result, our actual results may differ materially from those contemplated by the forward-looking statements. Important factors that could cause actual results to differ materially from those in the forward-looking statements include, but are not limited to: (i) our dependence on third parties, including public sources, for data, information, and other services, and our relationships with such third parties; (ii) increased accessibility to free or relatively inexpensive information sources; (iii) our ability to maintain high annual renewal rates; (iv) our ability to compete in the highly competitive industry in which we operate, and potential adverse effects of this competition; (v) our ability to maintain revenues if our products and services do not achieve and maintain broad market acceptance, or if we are unable to keep pace with or adapt to rapidly changing technology, evolving industry standards, macroeconomic market conditions, and changing regulatory requirements; (vi) changes in government policy positions, including trade policy, spending priorities, or reductions in government programs, government spending, or research funding; (vii) our loss of, or inability to attract and retain, key personnel; (viii) the effectiveness of our business plans; (ix) our ability to derive fully the anticipated benefits from organic growth, existing or future acquisitions, joint ventures, investments, or dispositions; (x) our exposure to risk from having operations and employees in other countries; (xi) our exposure to risk from the international scope of our operations, including potentially adverse tax consequences from the international scope of our operations and our corporate and financing structure; (xii) the strength of our brand and reputation; (xiii) our level of indebtedness, which could adversely affect our business, financial condition, and results of operations; (xiv) the ability to obtain and/or maintain the listing of our Class A common stock on Nasdaq; (xv) our ability to obtain, protect, defend, or enforce our intellectual property rights; (xvi) our ability to leverage artificial intelligence technologies (“AI”) in our products and services, including generative AI, large language models, machine learning, and other AI tools; (xvii) any significant disruption in or unauthorized access to or breaches of our computer systems or those of third parties that we utilize in our operations, including those relating to cybersecurity or arising from cyberattacks; (xviii) our use of “open source” software in our products and services; (xix) our ability to comply with applicable data protection and privacy laws; and (xx) other factors beyond our control.

For the reasons described above, we caution you against relying on any forward-looking statements, which should also be read in conjunction with Part I, Item 1A, “Risk Factors,” in our Annual Report on Form 10-K for the year ended December 31, 2025 (the “2025 Form 10-K”) filed with the Securities and Exchange Commission (“SEC”) on February 26, 2026, and Part II, Item 1A in this Quarterly Report and the other cautionary statements that are included elsewhere in this Quarterly Report and in our public filings, including under “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Any forward-looking statement made by us speaks only as of the date on which we make it. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future developments, or otherwise, except as may be required by law.