The round was led by ICONIQ at a $1 billion valuation, with participation from Sequoia, Andreessen Horowitz, Sequoia Global Equities, Bain Capital Ventures, Oak HC/FT, Battery Ventures, FirstMark, Scale Venture Partners, and Creandum. The round is Rillet's third in the last year and brings total funding to more than $200 million.

Rillet is the AI-native ERP built for the era of agentic finance. By combining a real-time general ledger, continuous close architecture and AI agents in one system, Rillet enables humans and agents to run finance together with full context, controls and auditability. Public companies and fast-growing enterprises including Mercor, Function Health, and Temporal run on Rillet. Rillet works with the top accounting firms and launched an alliance with EY in 2026.