Rillet's first major step into Europe is a new central London office and a UK team that is already in place, with significant hiring planned over the coming months. UK and European customers now account for 10% of the company's net new annual recurring revenue.
The expansion follows a $100 million Series C at a $1 billion valuation, led by ICONIQ with participation from Sequoia and Andreessen Horowitz. Rillet says it serves nearly 1,000 customers in 75 countries and that its international net new ARR more than tripled month over month. UK and European customers include Black Forest Labs, Temporal and Primer.
The company sells an agentic ERP that combines a real-time general ledger, continuous close architecture and AI agents in one system, so that people and agents work through finance tasks with the same context and audit trail. It positions the product against incumbents such as SAP, Oracle and NetSuite.
Dave Arkell, CFO at Black Forest Labs, said his company chose Rillet because it wanted AI built into the architecture of its finance stack, with reliable data it can act on and interact with.
To build credibility with finance leaders, Rillet will lean on the accounting firms it has worked with in the US. It has an alliance with EY, a strategic alliance with RSM, and partnerships with more than half of the Accounting Today top 20 CPA firms, many of which have UK and European practices. It is also bringing Close Club, a community that connects more than 1,500 finance leaders in the US, to Europe.
Founder and CEO Nicolas Kopp studied accounting at the London School of Economics and worked in the City for several years. He said the UK was a natural first stop because teams there were running on Rillet within a year of its US launch.
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