The seed round was led by Episode 1 with participation from Playfair Capital, Portfolio Ventures, and others.
StackOne provides an embedded integration platform that supplies unified APIs for software companies. The firm helps organisations connect products with customer ecosystems in real time.
StackOne has raised £2.8m in seed funding to expand its artificial intelligence capabilities and grow its international presence. The investment was led by Episode 1, with participation from Playfair Capital, Portfolio Ventures, Charlie Songhurst, and Sequoia's Scout fund, alongside several angel investors including prominent tech executives.
The company was founded a year ago by former Google and Oracle executives to address the complex challenge of managing multiple software integrations. Its platform allows B2B software vendors to connect with diverse enterprise tools through standardised APIs while maintaining rigorous security standards.
The fresh capital will be deployed to accelerate product development and scale operations across the US, EU, and Australian markets as demand for enterprise integration solutions continues to rise.
Investor perspective
"In less than a year, Romain and Guillaume have built a differentiated product that is loved by its users. Their best-in-class security and real-time architecture means they can serve entire categories their competitors cannot. They are rapidly becoming the default option for privacy conscious tech teams looking to scale integrations. We couldn’t be more delighted to back this team to disrupt the integrations market."
Andrew Sheffield
Investment Associate, Playfair Capital
Use of funds
- 01Continue product development
- 02Expand into international markets

