Nscale's IPO: a $45B Anthropic Deal It Still Has to Finance
Nscale filed to list on the NYSE days after signing a $44.6B Anthropic compute deal. The S-1 itself says the buildout still needs financing.
Nscale filed a public S-1 with the SEC on September 18, 2026, seeking a New York Stock Exchange listing under ticker NSCL with Goldman Sachs, JPMorgan and Morgan Stanley as lead bookrunners. The filing landed three weeks after the company disclosed the deal that is doing most of the work in its growth story: a roughly $44.6 billion, six-year compute-leasing agreement with Anthropic. Zorro's IPO pipeline has carried Nscale since the filing, with bankers reportedly floating a valuation as high as $35 billion — up from the $14.6 billion mark set in the company's own March 2026 Series C. No share count or price range has been set yet.
What Nscale actually is
Nscale is a London-based "neocloud" — industry shorthand for a company that builds GPU-dense data centers and sells the compute to AI labs, rather than developing its own models. It operates campuses in the US, UK and Norway, and its board includes two recognizable names from outside the AI-infrastructure world: former Meta executives Sheryl Sandberg and Nick Clegg. Nvidia, Dell Technologies, the Norwegian investment firm Aker, and Citadel are listed among its investors.
The business is genuinely growing fast by the numbers in the filing: revenue for the six months ended June 30, 2026 came in at $140.6 million, up 1,252% year-over-year. The net loss over the same period was $1.02 billion, nearly triple what it was a year earlier — a ratio of loss to revenue that is common in capital-intensive infrastructure buildouts but still worth sitting with before anchoring on the growth-rate headline alone.
The Anthropic deal is the story — and the catch
The contract disclosed alongside the S-1 commits Anthropic to spend close to $45 billion over six years for roughly 460 megawatts of compute capacity at Nscale's Monarch campus in West Virginia, which is designed to run on its own on-site microgrid. The filing describes a "clear expansion path to 8GW+" beyond that initial commitment, with the hardware built around Nvidia's next-generation Vera Rubin chip architecture and the campus targeted to go live by late 2027.
That is a real, binding, disclosed contract — not a loose letter of intent. But reporting on the S-1 has highlighted a detail that matters more than the headline number: Nscale still needs to raise the financing to build the facility the contract depends on. Nvidia has agreed to take at least $1 billion of a $3.1 billion convertible-note raise, and the company says it has raised more than $4.6 billion in debt so far this year to fund construction. The $45 billion figure describes what Anthropic will eventually pay for capacity that largely doesn't exist yet; it says nothing about whether Nscale can finance, permit and build it on the contract's six-year clock. That distinction — a contract's face value versus what it actually takes to deliver on it — is the same one worth applying to SB Energy's $439 billion backlog number from earlier this quarter, and it recurs across almost every AI-infrastructure filing this cycle.
A single-customer concentration problem
Anthropic is, by a wide margin, Nscale's most consequential customer. That is a sharper version of a risk that shows up across this entire IPO cohort: a backlog or contract figure measured in the tens of billions that is effectively a bet on one counterparty's continued need for compute, continued solvency, and continued willingness to pay on schedule. If Anthropic's own compute demand shifts — toward a competing neocloud, toward building owned infrastructure, or simply at a different pace than modeled — Nscale's revenue trajectory changes with it far more than a company selling to a diversified customer base would. The IPO prospectus will eventually have to quantify customer concentration explicitly in its risk factors; the 1,252% revenue growth rate is, in large part, one contract's growth rate.
Comps, and what they're worth here
Nscale's natural public-market comparison set is CoreWeave, which already trades as a public neocloud, plus a cluster of still-private rivals — Lambda, Crusoe, and Switch — all racing through the same financing-and-buildout playbook ahead of their own prospective listings. None of them is a clean comp in the traditional sense: each is at a different stage of contracted revenue, debt load, and construction completion, and public multiples built on the mature-company assumptions in a standard EV/EBITDA screen don't transfer cleanly onto a pre-revenue-conversion infrastructure build. What the comp set is useful for is relative positioning: Nscale's $35 billion target valuation sits well below SB Energy's reported $40–55 billion range and Switch's reported $50–80 billion range, despite comparable AI-power-demand narratives, which is one reason bankers may be able to defend the number even in a market that has already made two of this cohort's peers delay their own offerings.
What to watch once the range is set
The number that will matter most once Nscale files an amended S-1 with an actual price range isn't the $44.6 billion Anthropic figure — it's the debt-to-equity picture after the convertible-note raise closes, and whether the Monarch campus hits its construction milestones on anything close to the disclosed late-2027 timeline. Until then, Nscale sits among the unpriced names on Zorro's pipeline tracker; if and when it prices, it moves to the recent-IPO board, where quarterly revenue against the growth rate priced into the deal becomes the number that actually settles the question the S-1 can only describe in advance.