# Callosum
- Nvidia funds European startups. They spend it on Nvidia
Nvidia funds European startups. They spend it on Nvidia
- Tandem Health tops Sifted’s ranking of 100 standout AI startups in EuropeNews
October 15, 2026
Tandem Health tops Sifted’s ranking of 100 standout AI startups in Europe
- Callosum raises $100m seed led by Atomico to tackle AI compute bottlenecksNews
August 20, 2026
Callosum raises $100m seed led by Atomico to tackle AI compute bottlenecks