SEALSQ Corp (NASDAQ: LAES) announced its participation as a lead investor in Quobly's €130 million Series A financing round. The investment was made through SEALSQ's quantum fund and supports the French quantum computing company's development of silicon-based quantum processors.

The financing round includes STMicroelectronics, SEALSQ, Isalt, and the French Public Investment Bank (BPI France) as lead investors. SEALSQ CEO Carlos Moreira will join Quobly's board of directors as part of the investment agreement.

The investment builds on a technical partnership between the companies established in November 2025, focusing on integrating post-quantum cryptography and hardware security into quantum computing systems. The collaboration aims to develop quantum-resistant secure microcontrollers and enhanced device authentication for quantum platforms.

SEALSQ's quantum fund has grown from an initial $20 million allocation in February 2025 to $200 million currently. The fund has deployed approximately $30 million across various quantum technology companies, including IC'Alps, ColibriTD, EeroQ, WISeSat, Quantix Edge Security, and the WeCan Group.

Quobly, founded in 2022 in Grenoble, France, develops silicon-based quantum chips using semiconductor manufacturing processes. The company previously raised €19 million in 2023 and €21 million in 2025. Quobly maintains offices in France, Singapore, and Canada and has a strategic partnership with STMicroelectronics.

"This investment made via the SEALSQ Quantum Fund, builds on the SEALSQ - Quobly technical partnership established in 2025 and reflects a shared commitment to advancing the next generation of secure quantum technologies," Moreira said in a statement.

Quobly CEO Maud Vinet noted that the investment supports the company's transition toward industrial deployment of its quantum computing systems.