Crusoe raised $3.9 billion in a Series F funding round.
The company's valuation reached $30.9 billion after the deal.
Major investors included Atreides Management, Mubadala Capital, and Nvidia.
New board members include Thomas Seifert from Cloudflare and JB Straubel from Tesla.
This money helps build existing sites and new modular 'Spark' factories.
These small centers travel by truck to connect with power sources quickly.
Crusoe makes revenue by leasing space, renting GPUs, and selling inference power.
