Rillet raises $100mn at a $1bn valuation to put AI agents inside the general ledger

Rillet, founded in 2021, raised $100 million in a Series C at a $1 billion valuation, bringing total funding above $200 million and adding ICONIQ partner Seth Pierrepont to its board. Its AI-native ERP embeds autonomous finance agents in the general ledger, serving over 600 customers and driving roughly 70% month-over-month growth in agent activity.