Exhibit 99.1 DoubleVerify Reports First Quarter 2024 Financial Results Increased Revenue by 15% Year-over-Year to $140.8 Million, Driven by Global Growth in Social and CTV Measurement Achieved Net Income of$7.2 Million and Adjusted EBITDA of $38.1 Million, representing a 27% Adjusted EBITDA margin NEW YORK – May 7, 2024 – DoubleVerify (“DV”) (NYSE: DV), one of the leading software platforms for digital media measurement, data and analytics, today announced financial results for the first quarter ended Marc ...