Jim Cowsert

Jim Cowsert is a senior media investment executive at OMD, one of the world's largest media agencies under the Omnicom Media Group umbrella. He is recognized for his leadership in managing and optimizing large-scale media investments across television, digital, and emerging channels, helping major brand clients navigate an increasingly complex and fragmented media landscape. His work spans traditional and programmatic buying, with a focus on delivering measurable outcomes for advertisers. Throughout his career, Cowsert has built expertise in cross-platform media negotiation and investment strategy, working closely with media owners and technology partners to secure value and innovation for OMD's client roster. His role involves overseeing significant media spend and aligning buying practices with evolving audience targeting and measurement capabilities in the AdTech ecosystem. As a senior leader within OMD's investment practice, Cowsert contributes to the agency's broader positioning on data-driven media buying, addressable advertising, and the integration of advanced analytics into investment decisions. His tenure reflects the ongoing transformation of media buying from traditional upfront and scatter markets toward more automated, data-informed approaches.

Last updated Jun 11, 2026 by ATDb automated enrichment · Connections updated Jun 15, 2026