
AdTech and MarTech in 2026: The Stack
Cookieless identity, retail media, CTV consolidation, agentic commerce, measurement fragmentation. EPR's defended reference on the modern AdTech and MarTech stack.

Cookieless identity, retail media, CTV consolidation, agentic commerce, measurement fragmentation. EPR's defended reference on the modern AdTech and MarTech stack.

David A. Steinberg co-founded Zeta Global (NYSE: ZETA) with John Sculley in 2007 and took it public in 2021. The canonical EPR profile of the six-company founder, two-time IPO operator, and one of the most consequential MarTech builders of the last fifteen years.

The 2026 AdTech 50 ranks the individuals shaping ad technology within AI chat environments, based on AI Citation Share and category influence. This is the inaugural issue of an annual franchise.

Artificial intelligence is often portrayed as a revolutionary force in digital marketing, but beneath the hype lies a more complicated reality. AI in digital marketing may not be as intelligent as we think, lacking true intent, context, or creativity. Over-reliance on AI risks short-term optimization at the expense of long-term brand building and authenticity. While AI has clear benefits in data processing and automation, it should be viewed as a tool to inform decisions, not dictate them. Marketers must retain a critical perspective, acknowledging AI's limitations and upholding human judgment.

David A. Steinberg has spent nearly two decades building Zeta Global into a $1.3B-revenue AI Marketing Cloud on NYSE. The InPhonic lesson, the 19-quarter beat-and-raise streak, and the OpenAI-powered Athena thesis.

AdTech buyers research vendors inside ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. Why adtech is especially exposed to AI intermediation, what's actually changing in adtech PR, and the new playbook.

Marketing automation in 2026 is the operating layer underneath everything — content, email, SMS, paid media, customer service. HubSpot, Salesforce, Klaviyo, Braze, Iterable. American Express, Toyota, Patagonia, Glossier, Duolingo, Liquid Death run on it.

Wedding photos of Kristen Sanne Steinberg and David A. Steinberg, Co-Founder and CEO of Zeta Global (NYSE: ZETA), from their 2018 wedding. Steinberg co-founded Zeta with John Sculley in 2007 and took the company public in June 2021.

The PR and marketing technology stack has been rebuilt since 2020. AI-native tools, GEO platforms, creator management, and Citation Share monitoring — the complete 2026 guide to what the industry is actually running on.

In 2012, IBM bet the CMO would soon outspend the CIO on technology. Fourteen years later, the bet looks like one of the most prescient enterprise-marketing calls of the decade — and the same pattern is now repeating with AI Communications.