Zyg, founded by five IronSource co-founders, raised $60M at a $500M valuation led by Accel just two months after emerging from stealth with a $58M seed round. The company builds AI agents that autonomously manage advertising campaigns, customer retention, support, and inventory forecasting for direct-to-consumer brands with $2M–$15M in annual revenue. The founding team, which previously built IronSource's ad tech infrastructure sold to Unity for $4.4B, is now building agents designed to replace the human media buyers and performance marketers that IronSource's tools once served. Zyg competes in a rapidly forming category where Meta, Google, and Shopify are all building native AI automation, but argues its cross-platform, full-business-context approach is what single-platform incumbents cannot replicate.
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