Firmus, the 'Southgate' AI Data Center Builder Backed by Nvidia, Hits $5.5B Valuation

Firmus, the 'Southgate' AI Data Center Builder Backed by Nvidia, Hits $5.5B Valuation The race to build the physical infrastructure of the AI era just got a significant new milestone. Firmus Technologies — an Australian company building what it calls AI Factories — has raised $505 million at a $5.5 billion valuation, with Nvidia itself among the investors writing the cheques. Asia AI data center provider Firmus announced a fresh $505 million raise led by Coatue at a $5.5 billion post-money valuation. With this round, Firmus has raised $1.35 billion in six months. TechCrunch This isn't just another venture capital round. This is one of the most consequential AI infrastructure investments of 2026 — and it signals a major shift in where the global AI industry is building its physical backbone. What Is Firmus and What Is Project Southgate? Founded in 2019, Firmus develops specialised data centers — dubbed "AI Factories" — designed to efficiently run AI workloads. These facilities leverage advanced technologies such as liquid immersion cooling and are built using Nvidia's reference architecture. Benzinga Firmus is developing an energy-efficient "AI factory" network of data centers in Australia and Tasmania, a project it dubs Project Southgate. It is using Nvidia's reference designs for building these efficient data centers. These new data centers will use Nvidia's Vera Rubin platform — the chip giant's next-gen AI computing system succeeding its Blackwell architecture, expected to ship in the second half of 2026. TechCrunch Project Southgate is planned to expand beyond Tasmania into a national network, with sites in Melbourne, Sydney, and beyond. Its first stage, delivering 90 megawatts of AI infrastructure, is targeted for completion in 2026. The Next Web The Tasmanian location is not accidental. The island state runs on a grid that is overwhelmingly powered by hydroelectric generation, giving Firmus a credible claim to a low-carbon compute footprint that most data centre operators cannot match. The company says its liquid-cooling technology reduces energy consumption by up to 60% compared with conventional air-cooled facilities and cuts construction costs by roughly half. The Next Web The project is already delivering on sustainability metrics — Tasmanian sites have achieved a Power Usage Effectiveness rating of 1.03, near the theoretical limit and well below the global average of 1.5. Ventureburn The Investors: Nvidia, Coatue, and Blackstone The calibre of investors backing Firmus is a story in itself. Data center builder Firmus Technologies raised $505 million in an investment round led by Coatue Management, with Nvidia — the top maker of AI accelerator chips — also participating in the round. Bloomberg The investment from Coatue, a firm with over $70 billion in assets under management that has previously backed giants like OpenAI and Anthropic, provides significant institutional validation. It signals to the market that the infrastructure layer — often the "picks and shovels" of the AI gold rush — is viewed as a sustainable, long-term asset class. Creati.ai But equity is only part of the financial picture. In February 2026, the company closed a $10 billion debt financing facility led by funds managed by Blackstone Tactical Opportunities and Blackstone Credit & Insurance — one of the largest private credit transactions in Australian history, structured as long-dated infrastructure debt. The Next Web The combination of a $5.5 billion equity valuation and $10 billion debt facility gives Firmus a funded position that is unusually robust for a company of its age and public profile, positioning it to break ground on multiple sites simultaneously. Creati.ai An ASX IPO That Could Make History The $505 million raise is being described as the final private capital raise before an even bigger moment. The IPO, expected in June or July, would seek to raise an additional $2 billion and, if completed at that scale, would rank among the largest technology listings in Australian history. Bank of America, JPMorgan, Morgans Financial, and Morgan Stanley are conducting a non-deal roadshow with potential investors this week in preparation. The Next Web Other prominent Australian tech companies that have decided to go public have tended to favour non-Australian exchanges, making Firmus a somewhat rare tech company in seeking to float in Australia. SiliconANGLE If the IPO proceeds at its targeted scale, it will be one of the most significant moments in the history of Australian technology. Why This Matters: The Sovereign AI Race The broader significance of the Firmus story goes well beyond one company's fundraising round. It reflects a major strategic shift in where AI infrastructure is being built — and why. By focusing its operations in Australia and expanding into the Asia-Pacific region, Firmus is building the infrastructure necessary to keep information within national borders — a priority for many governments and large enterprises. The initiative aligns with Nvidia's push for "sovereign AI." Creati.ai Australia, alongside Northern Europe and parts of Southeast Asia, is positioning as a beneficiary of the geographic diversification pressure on AI infrastructure investment — particularly relevant given the disruption to Gulf data centre plans caused by the 2026 Iran conflict. The Next Web Firmus has previously stated that the Southgate project has secured a global hyperscaler customer IndexBox — though the name has not been publicly disclosed. From Bitcoin Cooling to AI Factories Firmus originally provided cooling technologies for Bitcoin mining and has become yet another crypto-roots-turned-AI provider company that investors love. Yahoo Finance It's a trajectory that mirrors many of the most successful infrastructure plays of the past decade — opportunistic technology pivots that turn niche expertise into category-defining businesses at exactly the right moment. For technology investors, enterprise AI teams, and anyone tracking where the global AI build-out is heading, Firmus is a company to watch very closely in the months ahead. For more coverage of AI investment, infrastructure news, and the business of tech in 2026, visit digital8hub.com — your go-to source for the stories shaping the future of technology and business.