UK air-defence startup Cambridge Aerospace announced a $300m (≈£220m) raise at a $3.4bn valuation on 10 August 2026 (Sifted; Tech.eu, 10 Aug 2026).
The £200m+ round market resolves YES on any UK-headquartered startup announcing a single round of £200m or more, as reported by the FT, Sifted or the company itself, between 4 June and 10 August 2026.
We looked at recent British deep-tech companies, firms built on new science, that grew very large. Britain is very good at starting such companies and has often failed to keep them. Of the four we found, three ended up with foreign owners or a listing abroad. The fourth, Wayve, has stayed independent in London, on money from a Japanese-led round.