StackAdapt, founded in 2014 by Vitaly Pecherskiy, Ildar Shar, and Yang Han, is a self-serve programmatic advertising platform powered by AI. It lets marketers and agencies plan, execute, and optimize campaigns across native, display, video, connected TV, audio, and in-game inventory, using machine learning for bidding, targeting, and creative optimization. The Toronto-based company has expanded into a broader marketing platform with planning, audience, and reporting tools, reaching reported revenue around $500M and 1,600+ employees across 20 countries. In February 2025 StackAdapt raised a $235M growth round at roughly a $2B+ valuation to accelerate its AI ambitions and global expansion, marking one of the largest adtech raises of the year.