The VETTDD 50 · UK startups · 2026
Danyal Akarca
Co-founder and CEO, Callosum · callosum.com ↗
Callosum’s software sends each AI workload to the chip best suited to run it. Within six months of leaving stealth, its chief executive had the UK government and Atomico behind a $100m seed
- seed round, August 2026
- $100m
- first equity investment of the Sovereign AI Unit
- Apr 2026
- pre-seed, disclosed on leaving stealth
- $10.25m
- company incorporated
- Nov 2024