A UK AI infrastructure startup founded by Cambridge neuroscientists offering a counter view to the “monoculture” that believes superintelligence
Callosum has raised €94M across 2 funding rounds from 6 investors, most recently a Seed round in Aug 2026. Based in London, UK; active in AI. Data as of 20 Sept 2026.
Timing: too soon 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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| 2026-08-20 | Seed | €86M | Angel Investors,Atomico,DCVC,Plural,UK Sovereign AI Fund | View deal → |
| 2026-02-26 | Other | €8.7M | ARIA,Plural | View deal → |
