What is StackOne?
StackOne operates as the foundational integration infrastructure for AI agents, facilitating secure and efficient connectivity across a vast array of SaaS platforms. The company's platform provides pre-built connectors for critical business functions, including ERP, CRM, messaging, and document management systems. By leveraging an AI-first integration engine, StackOne abstracts the complexities of authentication, rate limiting, and real-time data transformation. Furthermore, the platform incorporates advanced features such as prompt injection defense and granular permissions governance, ensuring that AI agents can execute tasks across enterprise software with both precision and security. This comprehensive approach allows developers to focus on agent logic while StackOne manages the underlying connectivity protocols, including MCP, A2A, and standard REST APIs.
How much funding has StackOne raised?
StackOne has raised a total of $23.6M across 2 funding rounds:
Angel/Seed
$3.6M
Series A
$20M
Angel/Seed (2024): $3.6M with participation from Portfolio Ventures, Episode 1 Ventures, and Playfair Capital
Series A (2025): $20M led by Episode 1 Ventures, XTX, Playfair, and Workday Ventures
Key Investors in StackOne
Workday Ventures
Workday Ventures is a strategic venture capital fund that accelerates innovation by connecting early-stage enterprise technology companies with the broader Workday ecosystem and customer base.
Episode 1 Ventures
A London-based venture capital firm specializing in early-stage software-driven businesses with high growth potential and a focus on disrupting large markets.
Playfair Capital
A highly selective London-based venture capital firm that focuses on pre-seed and seed investments, providing substantial follow-on support to help companies become global category leaders.
What's next for StackOne?
With this latest infusion of capital, StackOne is poised to accelerate its product roadmap and expand its market footprint. The strategic focus will likely center on deepening its integration library and enhancing the capabilities of its AI-first engine to support more complex, multi-step agentic workflows. As the company transitions into this next phase of growth, it will prioritize the scaling of its enterprise-grade governance features to satisfy the compliance requirements of large-scale organizations. By maintaining its commitment to secure, reliable, and scalable infrastructure, StackOne is well-positioned to become the standard connectivity layer for the next generation of autonomous enterprise software.
See full StackOne company page
