Overview
Brian Gleason serves as Chief Executive Officer at Seedtag [1][3]. Gleason has spent more than 25 years in media and advertising [2]. Prior to joining Seedtag, Gleason held the position of Chief Revenue Officer and President of Retail Media at Criteo from March 2022 to July 2025 [4]. Earlier roles include Global Chief Commercial Officer at GroupM [5], Global CEO of [m]PLATFORM at GroupM [6], and Global CEO of Xaxis [8]. Gleason also served as a board member at AppNexus [7]. Gleason earned a Bachelor of Science from the University of Connecticut between 1991 and 1995 [11].
Profile introduction
Brian Gleason is a global media and advertising executive who has spent 25+ years at the center of the industry’s biggest transformations—from programmatic, to commerce media, to what comes next. As CEO of Seedtag, he is leading the shift from audience-based advertising to neuro-contextual advertising—an approach that understands people through their interests, emotions, and intent in real time, without relying on personal data. Under his leadership, Seedtag has scaled to 700 employees across 17 markets, becoming one of the fastest-growing platforms in modern media. Brian’s career reflect…
Career history
- Chief Executive OfficerAug 2025 to presentSeedtag
- CRO and President, Retail MediaMar 2022 to Jul 2025Criteo
- Global Chief Commercial OfficerNov 2019 to Mar 2022GroupM
- Global CEO, [m]PLATFORMDec 2016 to Nov 2019GroupM
- Member Board Of DirectorsJan 2018 to Mar 2019AppNexus
- Global CEOJan 2016 to Nov 2016Xaxis
- CEO, Xaxis AmericasJun 2013 to Dec 2015Xaxis
- Group Chief Revenue OfficerOct 2007 to Jul 2013IDG Consumer & SMB
Education
Bachelor or Science1991 - 1995University of Connecticut
- Highschool
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