StackOne has secured a $20m Series A led by GV (Google Ventures) to reinvent SaaS and AI agent integrations.
Takeaway points
- StackOne secures $20m in Series A.
- It was led by Google Ventures.
- The funding will be used to continue building StackOne’s state-of-the-art tool-calling LLM, etc.
StackOne Series A
StackOne , the next-gen, AI-powered platform fuelling the future of enterprise AI agents and SaaS integrations , announced on Tuesday that it has raised $20 million in a Series A round led by GV (Google Ventures). Workday Ventures, XTX Ventures, existing investors Episode 1 and Playfair, and angels from OpenAI, DeepMind, Microsoft, and MuleSoft also participated.
The funding, which takes the total raised by StackOne to $24 million, will be used to continue building StackOne’s state-of-the-art tool-calling LLM, invest in R&D, and further expand the number of integrations and depth of actions available in the StackOne platform, the firm said.
Romain Sestier, co-founder and CEO of StackOne, commented, “For over a decade, Guillaume 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. 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 GV, said, “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.”
The AI
According to StackOne, AI isn’t just an add-on, it’s at the heart of everything it does. Through its platform, product teams get access to 3,000+ actions on 200+ connectors instantly, from HR to CRM, ticketing, messaging, and IAM.
StackOne said it is also building a growing AI developer community, including its own AI Demo Days that bring together researchers, builders, and infrastructure teams, and its own open-source contributions.
About StackOne
StackOne’s integration platform provides SaaS vendors and AI agent builders with a universal interface for enterprise-grade integrations. The StackOne solution provides platforms with a simple way to connect with B2B SaaS tools. The StackOne API and AI tools provide a real-time interface for interacting with multiple platforms.
Its unique real-time architecture enables powerful bi-directional integrations while protecting sensitive data. StackOne includes all that is needed to build, test, ship, and monitor integrations, with best-in-class security and privacy. The company’s investors include Google Ventures, Workday Ventures, XTX Ventures, Episode 1, and Playfair, as well as the founders of GitHub, Onfido, and Hofy.
