An AI-powered platform looking to fuel the future of enterprise AI agents and SaaS integrations has raised £15m.
London-based StackOne will use the funding to further develop its large language model (LLM), invest in research and development as well as expanding the number of integrations and depth of actions available in its platform.
The Series A round brings the firm’s total capital raised to £18m and was led by Google Ventures.
StackOne combines a proprietary AI agent and real-time engine to help to give teams the speed, coverage and reliability to connect SaaS and AI agents to the enterprise tech stack.
The company has recently surpassed 1bn API calls and has built a customer base which includes Drata, Attensi, Localyze and more across three continents.
“For over a decade, Guillaume (Lebedel, co-founder and CTO, StackOne) and I have felt the acute pain of integrations. We’d see teams burn months rebuilding or refusing requests and nothing on the market eased this pain,” said Romain Sestier, co-founder and CEO, StackOne.
“So we, alongside a super talented and passionate team, built it ourselves. StackOne doesn’t just reinvent how integration platforms can and should be built – with depth, accuracy and security by default – but we believe AI agents are the missing piece in finally delivering enterprise-grade integrations at scale.
“It’s the platform we’d always dreamed of, built for the AI future of SaaS, and it’s a vision shared by the whole team. This shared experience has shaped a culture of innovation, collaboration and deep care for the product we’re building and it shows.”
Luna Schmid, partner at Google Ventures, added: “What impressed us most about StackOne is its ambition and clarity. Romain and Guillaume aren’t building just another SaaS integration platform.
“They’re creating infrastructure that modern software and the entire AI agent ecosystem can rely on.The depth of secure integrations, the pace of delivery, and the team’s foresight into AI’s future uniquely position StackOne to redefine this category.”