The Daily Raise/August 20, 2026
Funding round
Callosum raises £73.5m seed round
Callosum (United Kingdom) has raised £73.5m in a seed round, announced on August 20, 2026. The company is Routes AI tasks across models and chips to reduce computing costs. The round was led by Atomico, with participation from Plural, DCVC, UK Sovereign AI Fund.
Callosum closed a seed round led by Atomico to build systems software that matches AI tasks with suitable models and chips.
Company
Callosum
Amount
£73.5m (~$100.2M)
Round
Seed
Sector
Artificial intelligence infrastructure
Country
United Kingdom
Announced
August 20, 2026
Track every raise, every day
This deal appeared in The Daily Raise, August 20, 2026. Get the next edition in your inbox.
Just raised too?
Turn your funding news into guaranteed media coverage while the momentum lasts.