Australian AI Infrastructure Company Firmus Plans Landmark $5.5 Billion IPO, Nearly Tripling Valuation in Two Months

Firmus, an AI infrastructure provider backed by Nvidia, is preparing to raise up to $5.5 billion through an initial public offering at a $30.6 billion valuation, making it one of Australia's largest IPOs on record. The company plans to allocate approximately half the offering shares to existing investors including Nvidia and Blackstone, enabling them to increase their positions. Strong investor demand has accelerated the institutional bookbuild timeline, with trading expected to commence on October 23 on the Australian Securities Exchange.

Firmus has experienced extraordinary momentum in capital formation over a compressed timeline. The company secured $10 billion in debt financing from Blackstone in early 2026, followed by a $2 billion equity round in August that valued it at $10.5 billion. The current IPO represents a continuation of this aggressive growth strategy, with major institutional investors including Nvidia and Blackstone positioned to maintain or expand their ownership stakes through reserved allocation provisions.

The company's core business focuses on purpose-built data center infrastructure optimized for artificial intelligence workloads. Operating facilities in Melbourne and Singapore, Firmus combines proprietary cooling and energy management systems with cloud service delivery for large-scale AI computing. This positioning directly addresses one of the primary bottlenecks in AI development: the shortage of specialized compute capacity in key geographic markets.