Sirdata is a privacy-first data and targeting platform that helps advertisers, publishers, and agencies activate audiences in a cookieless world. It provides cookieless and contextual targeting, real-time audience segmentation, consent management via its ABconsent CMP, and server-side tag management through Sirdata sGTM. By combining semantic and behavioral data with predictive modeling, Sirdata enables user-centric and content-centric audience activation while keeping data collection compliant with privacy regulations and under clients' control.