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Firmus

Builds and operates AI-optimized data centers and infrastructure to support large-scale compute workloads, backed by Nvidia and funded with $505M.

AI Infrastructure
AI data centers
Total Raised
$1.9B
Last Valuation
$9.0B
Headquarters
San Francisco, CA

Overview

Firmus Technologies develops and builds data centers tailored for AI and high-performance compute workloads. The company focuses on designing and scaling facilities to support intensive model training and inference, positioning itself within the AI infrastructure supply chain. In April 2026 Firmus raised $505 million in an undisclosed round reported as Nvidia-backed, bringing its total known funding to $505M. The sizable capital injection and Nvidia backing differentiate Firmus by aligning it with a major GPU supplier while enabling expansion of its data center footprint for AI customers.

Funding History

2 rounds · Apr 2026 – Apr 2026
$1.9B
Total Raised
2
Valuation: $9.0B
Cumulative: $1.9B

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

Investors not disclosed
Source
1
Valuation: $3.4B
Cumulative: $505M

Nvidia-Backed Data Center Builder Firmus Raises $505 Million

Investors not disclosed
Source

Frequently Asked Questions

How much has Firmus raised in total?
Firmus has raised a total of $1.9B across 2 funding rounds.
Who are Firmus's investors?
Firmus's investors include Undisclosed.
What does Firmus do?
Firmus Technologies develops and builds data centers tailored for AI and high-performance compute workloads. The company focuses on designing and scaling facilities to support intensive model training and inference, positioning itself within the AI infrastructure supply chain. In April 2026 Firmus raised $505 million in an undisclosed round reported as Nvidia-backed, bringing its total known funding to $505M. The sizable capital injection and Nvidia backing differentiate Firmus by aligning it with a major GPU supplier while enabling expansion of its data center footprint for AI customers.
Where is Firmus headquartered?
Firmus is headquartered in San Francisco, CA.