Signal AI
Signal AI is an artificial intelligence company that transforms the world’s information into accessible, actionable business knowledge.
Signal AI has raised €208M across 3 funding rounds from 7 investors, most recently a round in Sep 2025. Based in London, UK; founded 2013; active in Software. Data as of 28 Oct 2026.
Total raised
€208M
€207,913,154
Funding rounds
3
Investors
7
distinct backers
Active since
2019-10
latest 2025-09
Funding by year
EUR raised per yearSignal AI — funding by year — interactive chart.
Data table
| Signal AI — funding by year | |
|---|---|
| 2019 | €23M |
| 2021 | €44M |
| 2025 | €141M |
Signals
High confidenceRaise-next likelihood51
base rate 30% for Other
- ▲ In typical raise window
- ▲ Up-round momentum
Exit likelihood25
base rate 11% (2+ rounds)
- ▲ €100M+ raised
- ▲ 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
3 rounds| Date | Stage | Amount | Investors | |
|---|---|---|---|---|
| 2025-09-25 | Other | €141M | Battery Ventures | View deal → |
| 2021-12-15 | Series D+ | €44M | abrdn,Guardian Media Group Ventures,Hearst Ventures,Highland Europe,MMC Ventures,Redline Capital | View deal → |
| 2019-10-01 | Series C | €23M | Redline Capital | View deal → |
Investors
7Acquisitions
1- Social 3602024
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