The IronSource founders sold an ad tech company for $4.4 billion. Their next bet is that AI agents will replace the ad buyers their old company served.

IronSource Founders Raise $60M at $500M Valuation for Zyg, an Agentic AI Platform

The IronSource founders, known for selling an ad tech company for $4.4 billion, have made their next bet: AI agents will replace the ad buyers their old company served.

Summary

Zyg, an e-commerce automation platform built by five IronSource co-founders, raised $60 million at a $500 million valuation led by Accel, just two months after emerging from stealth. The company uses AI agents to automate advertising, retention, support, and inventory forecasting for direct-to-consumer (DTC) sellers on platforms like Meta.

The Irony

The founders, who spent a decade building tools for app developers to monetize their products through advertising, are now creating agents designed to replace the human media buyers they once supported.

The Platform

Zyg describes itself as an "agentic operating system for e-commerce scale". It automates tasks traditionally handled by human operators, fragmented software tools, and advertising agencies, including:

  • Campaign creation and optimization on Meta and other platforms
  • Customer retention
  • Support
  • Inventory forecasting

CEO Omer Kaplan states that Zyg's agents are already running campaigns on Meta and are "doing the vast majority of the activity themselves".

Target Market

Zyg targets businesses with annual revenues between $2 million and $15 million, a segment large enough to need sophisticated advertising but too small to afford dedicated teams.

Structural Shift

The irony lies in the fact that IronSource built the infrastructure that app developers used to acquire users and monetize through advertising, relying on a large workforce of media buyers, growth managers, and performance marketers. Zyg, however, aims to eliminate these professionals through AI agents. The same team that built the tools for human ad buyers is now building the agents to make them obsolete.