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 11
| Date | Title | Description |
| 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 $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.... |
| 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... |
| 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 | - |
| - | StackOne | “The platform that your engineers and customers will love for integrations with HRIS, ATS, LMS, CRM, & Marketing.” |
Show more