People

CPO at Permutive driving privacy-first audience targeting and cookieless ad tech solutions for publishers at the edge.

Senior Vice President of Products & Digital Media at Most Valuable Promotions, driving digital media and product strategy for a sports and entertainment promotions company.

VP and Principal Analyst at Forrester Research, Joe Stanhope is one of the most cited voices on marketing technology, CDPs, and the convergence of AdTech and MarTech.

General Partner at Aperiam Ventures; co-founder and former CEO of MediaMath.

Executive Director of Prebid.org, Joel Meyer leads the open-source header bidding consortium that underpins programmatic advertising infrastructure for thousands of publishers worldwide.

Former CEO of OpenX (2020-2026), deceased January 15, 2026 from cancer at age 58. Pioneered supply path optimization and led OpenX as one of the few independent SSPs against walled-garden ad exchanges. Distinct from the Epsilon CEO of the same name.

John David Rainey is the Executive Vice President and Chief Financial Officer of Walmart.

Founder and CEO of CivicScience, John Dick has built one of the most distinctive consumer intelligence and polling platforms used by media companies, brands, and advertisers to understand public opinion at scale.

Former CEO of Nike and eBay, John Donahoe is a seasoned enterprise technology and e-commerce leader whose platform-scale expertise intersects with digital advertising and data-driven commerce.

Chief Customer Officer at Coupa; former Microsoft executive in advertising and EU government affairs.

John Furner is the President and Chief Executive Officer of Walmart Inc.

John Gruber is the creator of Daring Fireball and inventor of Markdown, a leading Apple-focused tech commentator whose writing on privacy and platform policy has shaped AdTech discourse around Apple's ATT and tracking restrictions.

John Halley was President of Paramount Advertising, leading ad sales for Paramount and its predecessor companies over an 18-year run. He left the company in March 2026 after a transition period.

John Kahan is the Chief AI Officer of Stagwell Global.

Chief Transformation Officer and Managing Director at Digitas North America, leading strategic and operational transformation for one of the largest digital marketing agencies in the US.

AdTech operator driving programmatic innovation at RAD Amplify, focused on performance-driven advertising solutions and audience amplification strategies.

John Koenigsberg is the EVP and Head of Platform Partnerships at Horizon Media.

Chief Marketing Officer of Cava since October 12, 2026; previously Chief Brand Officer at Dr. Squatch through its sale to Unilever.

John Melloy is a senior digital media executive at CNBC, known for leading the network's digital and streaming strategy at the intersection of financial journalism and modern media distribution.

Google's Search Relations lead and one of the most recognized voices in SEO and web standards, John Mueller bridges the gap between Google's algorithms and the broader digital publishing ecosystem.

John Nardone is the Chief Executive Officer of JWP Connatix.

John Oronte is a marketing and business development leader at AtData, a company specializing in email intelligence and data solutions for marketers.