Global CEO at Annalect (Omnicom Media Group)
As head of Omnicom's data and technology backbone, Samardzija influences how billions of dollars in advertising are planned, activated, and measured programmatically, making him a key figure in the AdTech ecosystem.
Last updated Apr 24, 2026 by jonholm
Slavi Samardzija is the Global CEO of Annalect, Omnicom Media Group's data and technology platform, where he oversees the development of data science, analytics, and AdTech capabilities for one of the world's largest media agency networks. He has been a driving force behind Omni, Omnicom's open operating system for data and decisioning. His leadership bridges agency, data, and technology in a way that makes him a significant figure in the programmatic and data-driven advertising space.