Rillet has secured $70 million in Series B funding co-led by Andreessen Horowitz and ICONIQ, bringing the AI-native enterprise resource planning company’s total funding to over $100 million within one year. The San Francisco-based startup has signed more than 200 customers since launch and doubled its annual recurring revenue over the past 12 weeks.
The funding round includes participation from Sequoia, Oak HC/FT and existing investors, coming just 10 weeks after Rillet’s $25 million Series A. Andreessen Horowitz General Partner Alex Rampell and ICONIQ General Partner Seth Pierrepont will join the company’s board.
Founders Target Legacy System Inefficiencies
CEO and co-founder Nicolas Kopp developed the concept based on frustrations during his tenure as US CEO of N26 “As US CEO of N26, I experienced firsthand how frustrating it was to wait weeks for critical business metrics” Kopp said. He partnered with Stelios Modes, the technical architect behind N26’s payment infrastructure, to rebuild enterprise accounting systems.
The company addresses what founders see as fundamental limitations in traditional ERP systems, which they characterize as databases requiring extensive manual work through spreadsheets and separate analytics tools.
Customer Results Drive Rapid Growth
Rillet’s customer base demonstrates measurable operational improvements. Postscript, which generates over $100 million in ARR across global operations, now closes its books in three days using the platform. Windsurf operates its entire finance function with two people. Implementation typically takes four weeks compared to 12 months for traditional systems.
The company has established partnerships with major accounting firms including Armanino and Wiss, reflecting adoption among professional service providers.
Technical Architecture Differentiates Platform
Rillet’s approach integrates artificial intelligence directly within its general ledger system rather than as an external tool. Native integrations enable structured data flow, while AI capabilities support real-time collaboration, automated workflows and immediate reporting.
The founding team includes accounting professionals: the Chief Product Officer previously worked as an EY controller, the Head of Customer Success came from PwC, and the VP of Implementations is a CPA and former customer.
Market Context and Investor Perspective
The global accounting software market represents over $500 billion, dominated by legacy platforms owned by Oracle, Sage and Microsoft.
“Finance teams deserve the same AI advantages that have revolutionized sales, engineering, and legal” ~ Alex Rampell, Andreessen Horowitz’s General Partner.
Industry dynamics support Rillet’s timing, with 75% of accountants expected to retire within 15 years while Accenture research suggests 80% of routine financial operations could be automated.
Expansion Plans Target AI Integration
The company plans to expand AI capabilities and deepen integrations across financial technology systems. Rillet aims to create a collaborative platform where AI agents work alongside human expertise to transform business financial performance understanding.
Several customers are expected to pursue public offerings within the next 6-12 months while operating on Rillet’s platform.
“Our customers are building the companies that will define the next decade of business” ~ CEO and co-founder, Nicolas Kopp.