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 7 Aug 2026.
Timing: in window vs cohort gap · momentum up. Funding-only estimates, not predictions and not investment advice — see signals.
| Date |
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| Stage |
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| Amount |
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| Investors |
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| 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 → |
