SEALSQ Corp announced Wednesday it will participate as a lead investor in a Series A financing round for French quantum computing company Quobly [1, 2].

This investment represents a strategic move to industrialize silicon-based quantum computing. By supporting Quobly, SEALSQ aims to strengthen European sovereign quantum infrastructure, reducing reliance on non-European technology for critical computing capabilities [1, 3].

Reports on the total value of the financing round vary between sources. One report lists the Series A funding at 130 million euros [1], while another source states the round raised 115 million euros [3, 5]. SEALSQ is facilitating its participation through the SealQuantum.com fund [1].

Quobly focuses on the commercialization of quantum computers using silicon technology. This approach is intended to leverage existing semiconductor manufacturing processes to scale quantum hardware more efficiently than other methods [3, 5].

Despite the lead investment announcement, some reports indicate a shift in the relationship between the two firms. Yahoo Finance said that SEALSQ and Quobly ended talks regarding a majority investment or a full acquisition of the French company [4].

The deal comes as European nations increase spending to secure domestic control over emerging technologies. The partnership focuses on the development of a sovereign ecosystem that can support high-performance computing, and secure communications across the continent [1, 3].

“SEALSQ aims to strengthen European sovereign quantum infrastructure”

The discrepancy in funding totals and the reported end of acquisition talks suggest a pivot from a total buyout to a strategic minority investment. This allows SEALSQ to maintain a foothold in the quantum sector while Quobly retains its independence to scale its silicon-based architecture. For Europe, this move signals a broader push for 'technological sovereignty,' attempting to build a domestic quantum supply chain to compete with U.S. and Chinese dominance.