DoubleVerify Holdings, Inc.

This Annual Report on Form 10-K includes industry and market data and forecasts pertaining to the industry and markets of DoubleVerify Holdings, Inc. (“DoubleVerify”), including market sizes, market share, market positions and other industry data. Such information is based on our analysis of multiple sources, including publicly available information, industry publications and surveys, reports from government agencies, reports by market research firms and consultants and our own estimates based on internal company data and our management’s knowledge of and experience in the market sectors in which we compete (together, the “Company Data Analysis”). The third-party information contained within the Company Data Analysis has primarily been derived or extrapolated from reports prepared or published by Ad Age and Magna Global. We have not independently verified the market and industry data from third-party sources and thus the accuracy and completeness of such information cannot be guaranteed. This information cannot always be verified with complete certainty due to the limits on the availability and reliability of raw data, the voluntary nature of the data gathering process, and other limitations and uncertainties inherent in surveys of market size.