There is a number in Nscale's IPO filing that captures the entire economics of the AI infrastructure boom: more than $103 billion in contracts, set against $140.6 million in actual revenue for the first half of 2026. That is not a typo. The London-based neocloud has sold more future compute than almost any private company alive — it just hasn't collected most of it yet.

The company filed its S-1 with the SEC on September 18, seeking a New York Stock Exchange listing under the ticker NSCL. The offering is expected to be one of the year's biggest tech listings: reports put the fundraising target at up to $3 billion, at a valuation target of roughly $30–35 billion — about double what Nscale was worth when it raised a $2 billion Series C in March. Goldman Sachs, J.P. Morgan, and Morgan Stanley are lead bookrunners.

The headline numbers#

The filing is a snapshot of a company spending at startup-burn rates while scaling at infrastructure speed:

MetricH1 2026H1 2025
Revenue$140.6M$10.4M
Net loss$1.02B$369M
Contract value (total book)$103.4B (as of Aug 31)$38B (end 2025)
Customer concentrationOne customer: 52% of revenue

Revenue grew 1,252% year over year — a staggering number that is somewhat less staggering once you note it started from $10.4 million. Meanwhile the net loss nearly tripled to $1.02 billion as data-center build-out ran ahead of paying customers. Total debt sits above $8 billion.

The company itself is barely two years old: it emerged from stealth in 2024 as a spinoff from Arkon Energy, an Australian cryptocurrency mining firm, under founder Josh Payne. Since then it has expanded into Norway, Portugal, Texas, and West Virginia campuses, and in July agreed to acquire Anyscale, the company behind the Ray distributed-computing platform — a move into the software layer above the raw GPU rentals.

Two customers, a $103B backlog#

The contract book is the whole pitch — and the whole risk. Roughly 85% of it traces to just two agreements: a $43.8 billion compute-supply deal with Microsoft running through 2033, and a $44.6 billion supply agreement with Anthropic, per TechCrunch's reporting on the filing. One unnamed customer supplied 52% of first-half revenue outright.

The Anthropic deal comes with strings that public investors will read closely. It is contingent on Nscale obtaining financing, and Anthropic retains the right to walk away or cancel if Nscale misses milestones the filing describes as "stringent." The paradox of the neocloud model in one clause: the backlog is enormous because customers are desperate for compute, and fragile because delivering it requires financing the build-out first.

Nscale is hardly alone in this shape. A recent paper by credit hedge fund Sona Asset Management, covered by the Financial Times, found the pattern across the sector: rival CoreWeave draws 67% of its revenue from Microsoft, and data-center builder Applied Digital gets 67% from Oracle and 30% from CoreWeave. Sona's argument is that this interconnectedness is not automatically a problem — it is how a capital-intensive industry funds itself — but that a single setback or strategic pivot by a major player would ripple through the entire stack.

Nvidia's fingerprints are all over it#

Then there is Nvidia — which shows up in this filing as supplier, investor, and lender simultaneously. Earlier this month, Nvidia agreed to provide $1 billion in convertible debt as part of a larger $3.1 billion financing package, and reporting on the filing puts total Nvidia-linked financing at roughly $2 billion. Nvidia also holds more than a 5% stake via warrants issued in a 2025 financing round.

This is the circular-economy version of the AI boom: Nvidia sells Nscale the GPUs, takes equity in Nscale, lends Nscale money to buy more GPUs, and Nscale rents the resulting capacity to Microsoft and Anthropic — which in turn buy more chips from Nvidia. The S-1 reportedly flags the hardware dependence on Nvidia as a primary risk factor. It is the same playbook Nvidia ran with CoreWeave, now reprised on a company with a bigger backlog and a shorter operating history.

Why this IPO matters#

Nscale is the second big neocloud to test public markets after CoreWeave, and it arrives in a different mood than the first. Competitor Crusoe raised $3.9 billion at a $30.9 billion valuation last week; Nebius and Lambda are also scaling. Meanwhile, the market has just watched frontier-lab leaders publicly question the pace of AI scaling — and watched Wall Street wobble on it. Matt Kennedy of Renaissance Capital told Reuters the market can absorb AI infrastructure deals, "but it's nothing like the euphoria of a few months ago."

That makes the offering a referendum on three open questions. First, whether public investors will pay up for contracted revenue over collected revenue — the $103 billion is signed, not delivered, and converting it means hitting capital-intensive build targets. Second, whether the market still accepts two-customer concentration as the price of the neocloud model, given the Anthropic contract's financing contingency and walk-away clauses. Third, whether the Nvidia flywheel — supplier, lender, shareholder — reads as a moat or as the very definition of circular exposure.

What to watch: the pricing of the offering and how investors discount the backlog; whether the financing contingencies on the Anthropic deal get tightened or loosened before the roadshow; how quickly the $140-million-revenue business starts converting $103 billion of signatures into cash; and whether this IPO reopens or closes the window for the next neocloud in line.