StackOne
A provider of a next generation embedded integration platform as a service (embedded IPaaS)
StackOne has raised €21M across 2 funding rounds from 10 investors, most recently a Series A round in May 2025. Based in London, UK; active in Software. Data as of 28 Oct 2026.
London, UKwww.stackone.com ↗
Total raised
€21M
€20,960,044
Funding rounds
2
Investors
10
distinct backers
Active since
2024-03
latest 2025-05
Funding by year
EUR raised per yearStackOne — funding by year — interactive chart.
Data table
| StackOne — funding by year | |
|---|---|
| 2024 | €3.3M |
| 2025 | €18M |
Signals
High confidenceRaise-next likelihood71
base rate 44% for Series A
- ▲ In typical raise window
- ▲ Up-round momentum
- ▼ Low backer re-investment
Exit likelihood17
base rate 11% (2+ rounds)
- ▼ Young (<3y)
- ▲ Recently backed by strong-exit-track investors
Timing: in window vs cohort gap · momentum up. Funding-only estimates, not predictions and not investment advice — see signals.
Funding rounds
2 rounds| Date | Stage | Amount | Investors | |
|---|---|---|---|---|
| 2025-05-06 | Series A | €18M | Angels,Episode 1,GV (Google Ventures),Playfair Capital,Workday Ventures,XTX Ventures | View deal → |
| 2024-03-05 | Seed | €3.3M | Angel Investors,Charlie Songhurst,Episode 1,Playfair Capital,Portfolio Ventures,Sequoia’s Scout fund | View deal → |