Simile Raises $200M Series B at $2B Valuation Five Months After Series A

Simile, a startup generating synthetic AI users for marketing and product research, closed a $200 million Series B at a $2 billion valuation. Greenoaks led, with participation from Index, Bain Capital Ventures, and CVS Health Ventures. The round lands five months after a $100 million Series A led by Index Ventures. CVS is among Simile's marquee customers. Founder Joon Sung Park developed the core technology from his Stanford PhD work on Smallville, where AI agents simulated human lives.