Before U.S. IPO, UK AI Neocloud Nscale Lands $3.36B Convertible Financing

London-based AI cloud provider Nscale has secured $3.36 billion in convertible loan notes ahead of its planned US initial public offering, led by hedge fund Third Point . The financing consists of an initial $2.36 billion tranche that closed immediately, plus an additional $1 billion commitment from Nvidia expected in mid-November 2026 .

The round drew participation from funds managed by Apollo, Citadel, Hudson Bay Capital, the Abu Dhabi Investment Council, 8090 Industries, Davidson Kempner Capital Management, and several other institutional investors . The notes will automatically convert into ordinary shares upon completion of Nscale's IPO, with Nvidia receiving non-voting shares

The IPO Filing

Nscale filed its S-1 registration statement with the SEC on September 18, 2026, and has applied to list on the New York Stock Exchange under the ticker symbol "NSCL" . The company is reportedly targeting a valuation of up to $35 billion and seeking to raise as much as $3 billion in the offering . Goldman Sachs, J.P. Morgan, and Morgan Stanley are serving as lead bookrunners .

The company was spun out of Australian cryptocurrency mining firm Arkon Energy in May 2024 and has rapidly grown into one of Europe's best-funded data center startups . It raised $2 billion in March 2026 at a $14.6 billion valuation, with Nvidia, Dell, and Nokia among the backers .

The Business Model

Nscale operates as a "full-stack" AI cloud platform, controlling each layer of the AI computing stack: behind-the-meter power generation, liquid-cooled data centers, and large-scale GPU clusters . The company's "power to token" model aims to integrate the entire chain from electricity resources through to model inference .

As of August 31, 2026, Nscale reported approximately 25,000 active GPUs and 461,000 active or contracted GPUs across five active and 12 contracted data center sites . The company says it controls a power pipeline exceeding 10 gigawatts .

Contracted Value vs. Revenue

Nscale's IPO filing reveals a striking disparity between its contracted pipeline and current revenue. The company reported $103.4 billion in total contracted value as of August 31, but only $2.6 billion of that is currently active . First-half 2026 revenue was $140.6 million, up 1,252% year-over-year, against a net loss of $1.02 billion .

The contracted value is heavily concentrated: a Microsoft agreement worth up to $43.8 billion through 2033 and Anthropic agreements worth up to approximately $44.6 billion account for roughly 85% of the total . Nscale's largest customer accounted for 52% of first-half revenue .

The Anthropic deal, which covers a six-year lease at Nscale's Monarch Compute Campus in West Virginia, is contingent on Nscale obtaining financing. The filing notes that Anthropic can cancel the contract if Nscale misses certain "stringent" milestones .

Nvidia's Triple Role

Nvidia's relationship with Nscale extends beyond investment. The chipmaker serves as GPU supplier, customer, and financier: it has signed a $1.2 billion capacity lease agreement with Nscale, invested over $2 billion (including the latest $1 billion commitment), and provided an $860 million guarantee for Nscale's lease obligations at a Texas facility .

Nvidia CEO Jensen Huang has described Nscale as a potential "national champion for UK AI infrastructure" . Nscale is playing the role of Oracle in "Stargate UK," a British counterpart to the US AI infrastructure initiative, partnering with Nvidia and OpenAI .

Risks and Challenges

The prospectus highlights several execution risks. Nscale said it had not yet secured binding financing commitments required to fund performance under its Anthropic agreements as of the prospectus date . The company has committed $3.5 billion to construction and $24 billion for technology equipment across its sites, with payments due throughout 2026 and 2027 .

Competition in the AI infrastructure space is intensifying, with Nscale facing off against established players including CoreWeave, Nebius, and traditional cloud giants Amazon and Microsoft . The company also faces the challenge of converting its massive contracted backlog into operational capacity: only about 5% of its planned GPU fleet is currently energized .

The financing underscores the enormous capital requirements of building AI infrastructure at scale, even as some industry leaders have called for slowing AI development over safety concerns . For Nscale, the pre-IPO raise provides a substantial bridge to its public market debut, but the real test will be executing on its $103 billion pipeline.