Aaru builds large-scale behavior simulations that predict how real populations will respond to a product, price, message or strategy before a company commits to it. The platform generates populations of AI agents - roughly 10,000 per audience - grounded in public datasets such as census and labor statistics, licensed private behavioral data such as transaction and search patterns, and the customer's own context, then runs hypothetical scenarios against them. It is positioned as a replacement for surveys and focus groups, on the argument that simulated behavior predicts action better than self-reported preference. Founded in March 2024 by Cameron Fink, Ned Koh and John Kessler, the company operates from New York and Singapore and counts Accenture, EY and Interpublic Group among its customers.