Nscale’s $35B IPO at risk after Microsoft cancels UK data center deal

Nscale Global Holdings, the British neocloud operator planning a $3 billion initial public offering in New York, has faced a significant challenge after Microsoft pulled out of a deal to lease artificial intelligence infrastructure at its planned data center in Loughton, Essex. Reports suggest the project has been hampered by delays, including concerns about power availability that may not be resolved for years.

The facility was expected to deploy tens of thousands of Nvidia GPUs, with initial capacity targets in the tens of megawatts and potential for expansion. Nscale had previously announced the Loughton site alongside other data center projects in Texas, Portugal, and Norway, reportedly part of a multi-billion-dollar agreement with Microsoft. While those other projects appear to be progressing, the status of the U.K. facility is now uncertain.

A representative for Nscale indicated that its partnership with Microsoft remains intact, stating that the issue affecting the Loughton site does not impact other existing contracts. The company is reportedly exploring alternative solutions for the project and other potential expansion sites in the U.K. However, the setback arrives at a critical moment, as Nscale had recently filed confidentially for its IPO with U.S. regulators, aiming to list on the New York Stock Exchange.

The company’s reliance on a small number of major customers adds to the risk. Disclosures in its IPO filing show that Microsoft and Anthropic represent a substantial portion of its contract value. The loss of even a single project could raise concerns among investors already cautious about the capital-intensive nature of the neocloud business model. Similar challenges have affected other players in the sector, with CoreWeave’s stock declining recently over financing concerns, and Firmus Technologies abandoning its IPO plans earlier this month due to insufficient investor interest.

Broader industry trends also raise questions. Recent reports have highlighted growing skepticism about the sustainability of the AI infrastructure boom, with delays, regulatory hurdles, and power constraints affecting multiple operators. Oracle, for example, reportedly faced difficulties securing power for a planned data center in New Mexico. When we covered Nscale’s $3.36 billion pre-IPO funding round last month, the raise reflected strong investor interest in AI infrastructure, but the current setback may test that enthusiasm.

Neoclouds like Nscale, CoreWeave, and Nebius have positioned themselves as alternatives to hyperscalers, offering specialized infrastructure for AI workloads. Their success depends on rapid scaling, but execution risks have become increasingly apparent. Nscale’s Norway facility has reportedly encountered technical and regulatory challenges, while its U.K. project faces uncertainty over power availability. These issues suggest that even well-funded startups may struggle with the complexities of building large-scale data centers.

For Nscale, the immediate challenge is whether it can address the issues affecting the Loughton site or reallocate capacity to other locations in time to reassure investors. The company’s IPO filing already acknowledges the risks of its customer concentration, and the recent cancellation will likely intensify scrutiny of its ability to deliver on its expansion plans. If the IPO proceeds, it could serve as a key test of investor confidence in neoclouds, whose growth depends on proving that their infrastructure investments will pay off before funding runs out. With financing conditions tightening, Nscale’s timeline to demonstrate its model may be growing shorter.

Sources: siliconangle.com