Firmus, the ‘Southgate’ AI data center builder backed by Nvidia, hits $5.5B valuation

# Firmus Raises $1.35 Billion in Six Months to Build AI Data Centers A company called Firmus, which builds the massive computer facilities needed to run artificial intelligence systems, has just raised $1.35 billion in funding—a sign of how desperately the world needs more AI infrastructure right now. The company is now valued at $5.5 billion, making it one of the most valuable startups in the AI space, and it's backed by Nvidia, the chipmaker that dominates the AI hardware market. This funding rush reflects the reality that companies building AI services are running out of computing power, creating an urgent need for new data centers to meet demand.