London-based Callosum has closed a $100m (£73.5m) seed round led by Atomico, with Plural, DCVC and the UK Sovereign AI Fund participating. It is the first investment made by the government's £500m sovereign fund and one of the largest seed rounds ever raised by a British company.
London edtech Medly AI has closed an $8m (£5.9m) seed round led by Felix Capital, with existing backers Eka Ventures and Ada Ventures following on 18 months after the platform launched.
Mindgard, the Lancaster University spinout building offensive security tooling for artificial intelligence, has closed a $30m (£22.2m) Series A led by Album VC, with Karma Ventures joining alongside existing backers .406 Ventures, Atlantic Bridge, IQ Capital and Lakestar.
London-based Edgify has closed a $9m (£6.7m) Series A+ round led by Rank Ventures and Mangrove Capital Partners, taking total funding to $25m (£18.5m) as it targets a $15.8bn retail computer-vision market.
Fresh analysis published on 10 August assessing Google DeepMind's leadership overhaul has sharpened concerns about the UK's position in the AI race, after Demis Hassabis stepped back from running the London-founded lab to become Chair of DeepMind and Chief Scientist at Alphabet.
The UK attracted $12bn of AI venture capital in the first half of 2026, 53% of the European total, as AI startups across the region captured a record 55% of all VC and mega-rounds swallowed the bulk of the money.
London AI-infrastructure company Volta has come out of stealth disclosing a $2.4bn (£1.8bn) valuation from its seed and Series A rounds, a $10bn (£7.4bn) strategic partnership to build a European AI factory, and a $5bn (£3.7bn) financing programme with Azora.
