Hundreds of APIs, Standardized. Build integrations incredibly quickly, reliably, and securely using our Unified APIs (in HRIS, ATS, CRM, CS Platform, and more).
Total raised: $23.6M
Investors 1
| Date | Name | Website |
| 10.05.2024 | Playfair C... | playfair.v... |
Funding Rounds 2
| Date | Series | Amount | Investors |
| 12.05.2025 | Series A | $20M | GV |
| 07.03.2024 | Seed | $3.6M | - |
Mentions in press and media 12
| Date | Title | Description |
| 16.06.2026 | ClearCo Unveils Agent Platform for the Talent Lifecycle | ClearCo Unveils Agent Platform for the Talent Lifecycle ClearCo expands Talent AI with the Agent Platform, enabling autonomous HR workflow automation through AI agents managed centrally in Agent Studio. ORLANDO, Fla., June 16, 2026 /PRNewsw... |
| 12.05.2025 | StackOne: $20 Million Series A Raised To Transform SaaS And AI Agent Integrations | StackOne, a next-gen AI-based platform advancing the future of enterprise AI agents and SaaS integrations, announced it raised $20 million in a Series A round led by GV (Google Ventures). Workday Ventures, XTX Ventures, existing investors E... |
| 06.05.2025 | StackOne Raises $20 Million Series A led by GV (Google Ventures) to Reinvent SaaS and AI Agent Integrations | StackOne is the AI-powered platform supercharging SaaS and AI developers to build real-time enterprise integrations with unrivalled speed, scale and 5x better accuracy Its AI integrations agent connects complex enterprise APIs in days inste... |
| 06.05.2025 | StackOne Raises $20M in Series A Funding | StackOne, a London, UK-based provider of an AI-powered platform for AI agents and SaaS integrations, raised $20M in Series A funding. The round, which brought the total amount to $24M, was led by GV (Google Ventures), with participation fro... |
| 06.05.2025 | British AI startup StackOne raises €17.6 million to reinvent SaaS and AI agent integrations | London-based StackOne, an AI-powered platform fuelling enterprise AI agents and SaaS integrations – has raised €17.6 million in a Series A funding round in order to build StackOne’s tool-calling LLM, invest in R&D, and further expand th... |
| 06.05.2025 | StackOne raises $20M for easier API integration, led by Big Tech backers | London-based StackOne has raised $20M in a Series A round led by GV (formerly Google Ventures), with participation from Workday Ventures, XTX Ventures, Episode 1, Playfair, and angel investors from OpenAI, DeepMind, Microsoft, and Mulesoft.... |
| 10.03.2024 | StackOne Secures $3.6M in Seed Funding, Ready to Scale Up | StackOne, a London-based provider of embedded integration platform as a service, has secured $3.6M in seed funding led by Episode 1. The funding will be used to invest in AI and expand its unified API offering for the SaaS sector in the US,... |
| 07.03.2024 | StackOne Raises $3.6M in Seed Funding | StackOne, a London, UK-based provider of an embedded integration platform as a service (embedded IPaaS), raised $3.6M in Seed funding. The round was led by Episode 1, with participation from Playfair Capital, Portfolio Ventures, Charlie Son... |
| 05.03.2024 | London-based StackOne gets €3.3 million to provide a real-time unified API for B2B SaaS companies | - |
| 05.03.2024 | StackOne Secures $3.6M in Seed Funding led by Episode 1 | - |
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