Rex is an AI-native platform designed to handle the entire order-to-cash process. It uses AI agents to replace manual work, continuously managing invoices, customer interactions, and exceptions. The order-to-cash function is a large, outsourced market because traditional automation struggles with its complexity. Each customer has unique circumstances, exceptions rarely follow predictable rules, and the necessary next action is often hidden in emails, portals, or a person's memory.
Rex agents operate in the background, resolving tasks to meet service level agreements and ensuring cash flow remains steady. The platform is currently in use with pre-IPO technology companies, managing $500 million in receivables from Fortune 100 companies and reducing manual follow-up cycles from weeks to hours. The founders created Rex after building Sequence, a finance operations platform backed by a16z, where they observed that order-to-cash still relied heavily on manual labor at scale. Rex was also the top winner of the Vercel AI Accelerator, selected from 2,500 teams by industry leaders.