Denise Karkos

Denise Karkos is a seasoned marketing and media executive with deep experience on the brand side of the advertising ecosystem, having led marketing organizations at major consumer-facing companies including SiriusXM and TD Ameritrade. She is recognized for her ability to blend data-driven performance marketing with brand storytelling, giving her a distinctive perspective on how advertisers evaluate and deploy AdTech solutions at scale. Her work at SiriusXM in particular placed her at the intersection of audio advertising, subscription media, and programmatic audience targeting. Karkos served as Chief Marketing Officer at SiriusXM, where she oversaw brand strategy, customer acquisition, and media investment across a complex multi-platform environment. Prior to that, she held the CMO role at TD Ameritrade, navigating financial services marketing in an increasingly digital and data-regulated landscape. These roles gave her hands-on experience with identity resolution, audience segmentation, and the evaluation of AdTech stacks from an advertiser's perspective. Her current affiliation with Unisport could not be independently verified with confidence at the time of this profile. Karkos is regarded in industry circles as a practitioner-operator who brings credibility to conversations about advertiser needs, media measurement, and the evolving relationship between brands and technology platforms.

Last updated Sep 9, 2026 by ATDb automated enrichment · Connections updated Sep 14, 2026