People

Iván Markman is the President and Chief Operating Officer of Mediaocean.

Ivan Zacharias is a director at Smuggler, the acclaimed production company, known for crafting visually distinctive commercial and branded content work for major advertisers.

J.J. Carter is President & Global CEO of FleishmanHillard, one of the world's largest public relations and communications firms, appointed to the top role in 2024.

J.K. Symancyk is a seasoned retail executive now leading Signet Jewelers, bringing deep omnichannel and retail media experience from his tenure running major pet and grocery chains.

Co-founder of Anthropic and head of The Anthropic Institute, Jack Clark is one of the most influential voices in AI safety and policy, shaping how governments and institutions think about the risks of advanced AI systems.

Co-founder and CEO of Patreon, the creator economy platform that redefined direct monetization for artists and creators, pioneering subscription-based fan funding at scale.

Co-founder of Twitter and Square (now Block), Jack Dorsey is a tech visionary whose platforms reshaped digital advertising, social media monetization, and decentralized finance infrastructure.

Lead Sales Engineer for EMEA at Assertive Yield, specializing in programmatic yield optimization and publisher monetization solutions across European markets.

Jackelyn Keller is Chief Commercial Officer of Marketecture Media, bringing deep ad-tech and media measurement expertise from senior roles at Comscore, Samsung Ads, and Quantcast.

A seasoned media and advertising executive, Jacki Kelley is a senior leader at Omnicom Group driving client strategy and business growth at the intersection of media, data, and technology.

Co-host of The Toast at Dear Media.

Chief Client & Operations Officer at IMG, Jackie Stevenson leads client delivery and operations worldwide; she previously was Global Chief Strategy & Innovation Officer at M+C Saatchi and co-founded The Brooklyn Brothers.

Jacques Le Mancq is a streaming and video technology executive at Broadpeak, driving innovation in server-side ad insertion and content delivery solutions for broadcasters and OTT platforms.

Co-founder of Cann, the social tonic brand, with a background in brand marketing and consumer goods rather than traditional AdTech.

AdTech sales and partnerships leader at Roku driving streaming TV monetization and programmatic advertising strategy for one of the largest CTV platforms.

Founder and CEO of Kevel, James Avery is a leading voice in ad tech infrastructure, empowering companies to build custom ad servers and retail media networks as an alternative to Big Tech ad platforms.

Enterprise Business Director at Hawk, driving programmatic and digital advertising solutions for enterprise clients across the AdTech ecosystem.

James Fenton is CEO of the U.S. Advertising Collective at Omnicom Advertising Group, leading the unified creative powerhouse that brings together BBDO, DDB, and TBWA under one structure.