We play fair by founders
Giving you an unfair advantage, to take you from where you are to where you want to be
Giving you an unfair advantage, to take you from where you are to where you want to be
92% of our portfolio recommend working with us
Story
78% of our companies have successfully raised a Series A
Portfolio
Because we know it takes more than funding for a startup to survive and thrive; the right support goes beyond writing cheques
Thesis
It’s a step towards the tomorrow we all want to live in
Content
Collaboration is Queen: Our female founder network has collectively raised £600m
Female Founders
It’s never too early for an initial conversation
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The Tool Gateway for successful AI rollouts
StackOne is the Tool Gateway for successful AI rollouts across teams and systems. It manages the tool layer between AI agents and business applications, giving organisations shared, governed and secured access to business systems without every team building and maintaining separate integrations.
StackOne provides managed connectors for business applications and pre-built actions via an MCP gateway, A2A, AI SDKs and APIs, plus an AI Connector Builder to extend connectors or connect custom and legacy systems. Tool discovery and token optimization surface only relevant tools, keeping agent context lean. Managed authentication and per-user permissions govern access for every user, agent and action. Prompt-injection defense and secure execution protect against unsafe or malicious tool responses, and end-to-end observability captures tool calls, actions, failures and audit trails.
We believe every organisation deploying AI will need a governed layer between its agents and the systems those agents act on. StackOne is building it. Since our first cheque the company has raised $24 million in total, backed by GV (Google Ventures) and Workday Ventures alongside Playfair.
Read more in our blog post