Rillet Opens London Office, Calls It Its First Major Move Into Europe
Rillet has opened an office in central London, which the US startup described as its first major move into Europe. The company makes ERP accounting software with built-in AI agents. Rillet said customers in the UK and elsewhere in Europe account for 15% of its new annual recurring revenue, with Black Forest Labs and Temporal among them. The company has also signed its first UK hires in sales, deployment and customer support and plans to build a full team in London, but has not said how many people it will hire.
The London office gives Rillet a local base to understand European customers’ needs and support finance teams with deployment and ongoing customer service, according to the company. It has also begun its first UK hiring in sales, deployment and customer support.

Rillet, a US start-up that makes accounting software with built-in AI agents, has opened an office in central London. It is the company’s first major move into Europe, Rillet said on Monday.
Customers in the UK and the rest of Europe already account for 15% of Rillet’s new annual recurring revenue, the company said. They include AI image firm Black Forest Labs and software company Temporal.
Rillet makes ERP software, the systems companies use to run their finances. It says its product keeps a company’s accounts up to date in real time. It also lets AI agents do some of the work of closing the books at the end of each month.