Simile — Valuation, Funding & Investors

Simile builds AI simulations of human behavior, letting companies test how customers, employees, or populations will respond before making a decision. Founder Joon Sung Park, a Stanford PhD who earlier created the Smallville generative-agent research project, built the company with Percy Liang and Michael Bernstein, grounding each simulated person, called a simile, in structured interviews and real behavioral data drawn from an actual individual.

Enterprise customers including Gallup, CVS, Wealthfront, and Suntory Beverages use Simile to explore product decisions and customer journeys; at CVS Health the technology draws on 2.9 million consented responses from more than 400,000 participants. Five months after launching, Simile had grown revenue fivefold and expanded past 50 employees.

Listed funds carry late-stage private names. A fund's latest schedule of investments shows whether it holds Simile.

Often trade at a premium or discount to NAV.

Platforms match existing holders with buyers. Simile availability at any moment is set by the holders.

High minimums, transfer approval, company right-of-first-refusal.

Valuations, rounds and IPO status for every company in the directory — Simile included.

The closest ai synthetic-user simulation for market/product research peers are on the competitors page.

The routes section explains what is realistically available for a company at this stage.

No. Simile is a private company; its shares do not trade on a public exchange.

The last valuation is $2B.

Lead investors for each round are in the funding timeline.