Exhibit 99.1 DoubleVerify Reports First Quarter 2026 Financial Results Increased Revenue by 10% Year-over-Year to $180.8 Million, Driven by Social and CTV Achieved Net Income of $6.4 Million and Adjusted EBITDA of $55.2 Million, representing a 31% Adjusted EBITDA margin Repurchased 9.8 Million shares for $100.2 Million Year to Date NEW YORK – May 6, 2026 – DoubleVerify ("DV") (NYSE: DV), the leading software platform for digital media measurement, data and analytics, today announced financial results for th ...