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With UK and European customers already driving 15% of net new revenue, Rillet is building a full local team in London as its first major step into Europe.
LONDON, UK – November 9, 2026; Rillet, the agentic ERP (enterprise resource planning) platform for modern finance teams, today announced its expansion into the UK, with a new office in central London and its founding UK team already on the ground. International demand already drives 15% of Rillet’s net new ARR with customers in the UK and across Europe, including some of the fastest-growing AI companies like Black Forest Labs and Temporal.
The expansion comes less than three months after Rillet raised a $100 million Series C at a $1 billion valuation led by ICONIQ, with participation from Sequoia and Andreessen Horowitz. Rillet now serves nearly 1,000 customers across 75 countries, including publicly listed enterprises and some of the fastest-growing companies globally. Rillet’s international net new ARR more than tripled month over month, reflecting accelerating demand beyond US borders.
UK companies were choosing Rillet long before it had a local presence, driving the company’s decision to expand into Europe. Europe is home to some of the world’s most ambitious companies, yet many of their finance teams still close the books on legacy systems.
“When I joined Black Forest Labs, I really wanted to build a finance function that embodied our companies ambition of pushing the frontier of what was possible. We chose Rillet for our ERP because they matched that ambition. Our tech stack needs to have AI at its core and that extends beyond features like MCP connectivity. We need AI that’s built into the architecture, with reliable data that we can both act on and interact with. Rillet provides all of this.” said Dave Arkell, CFO at Black Forest Labs.
Rillet is building a full local organization in London, with founding UK hires already signed across GTM, deployment, and customer support. Rillet has a track record of attracting top talent, and this month, LinkedIn named it on its 2026 Top Startups list of 50 U.S. companies. The goal is to bring to the UK what has worked in the US: a local team that helps finance teams evaluate Rillet, gets them live, and stays accountable to them after go-live.
“Within a year of launching in the US, we already had finance teams in the UK running on Rillet,” said Nicolas Kopp, CEO and Co-founder of Rillet. “We didn’t have a dedicated local team and almost no marketing, yet they still found us, implemented from across the Atlantic, and modernized their tech stack. Now, having a local presence means we can better understand our customers’ needs and support them on the ground.”
Rillet has built its category alongside the accounting firms that audit and advise the world’s largest companies, and many of those firms have established practices across the UK and Europe. Rillet’s ecosystem includes an alliance with EY, a strategic alliance with RSM, and partnerships with more than half of the Accounting Today top 20 CPA firms. Those relationships give Rillet a foundation to build local credibility, expand its network, and accelerate momentum across EMEA.
About Rillet
Rillet is the Agentic ERP built for the modern era. 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. Learn more at rillet.com.
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Image source: rillet.com
