SEALSQ announced an additional strategic investment in quantum computing company EeroQ and will serve as the lead investor in EeroQ’s upcoming financing round, strengthening its commitment to developing scalable quantum computing technologies and expanding its broader Quantum Highway strategy.
The investment builds on SEALSQ’s previous investments in EeroQ in December 2025 and February 2026. The funding comes through SEALSQ’s Quantum Fund, an internal investment initiative focused on accelerating the development of a sovereign quantum technology ecosystem through investments in quantum computing startups across the United States and Europe.
EeroQ is developing a patented quantum computing architecture based on electrons on helium (eHe), a technology designed to be fully compatible with existing CMOS semiconductor manufacturing processes. The company believes this approach can enable more efficient scaling compared with many other quantum computing platforms.
The latest investment follows ongoing collaboration between the two companies on an integrated Quantum Security Vertical Stack. The project aims to combine SEALSQ’s secure semiconductor hardware, post-quantum cryptography, and public key infrastructure services with EeroQ’s quantum processor architecture. The proof of concept is expected to be demonstrated at SEALSQ’s Quantum Center of Excellence in Geneva, pending regulatory approvals.
SEALSQ cited several recent developments at EeroQ as factors behind its increased commitment, including progress on a control architecture designed to manage up to one million qubits using fewer than 50 physical control lines. The company also highlighted EeroQ’s collaboration with Conductor Quantum involving NVIDIA Ising models as part of an autonomous quantum computing laboratory proof of concept.
Under the new agreement, SEALSQ has subscribed to an additional investment in EeroQ and committed to anchor EeroQ’s next priced financing round. As lead investor, SEALSQ plans to support participation from strategic and institutional investors aligned with EeroQ’s U.S.-focused quantum technology roadmap.
The expanded role gives SEALSQ a greater stake in EeroQ’s future development as the quantum computing company works to scale its helium-based processor technology, expand research and development operations in Chicago, and accelerate milestones tied to CMOS-compatible manufacturing.
SEALSQ said the investment supports its Quantum Highway strategy, which seeks to create a pathway connecting secure semiconductors, post-quantum cryptography, and quantum computing within a sovereign technology infrastructure. The company believes EeroQ’s processor roadmap represents a critical component of this vision, particularly for applications involving national security, defense, and critical infrastructure.
EeroQ was founded in 2017 and is focused on developing quantum computers using electrons on helium while leveraging existing semiconductor fabrication technologies. The company has also been involved in efforts to establish ethical and policy frameworks for the future deployment of quantum computing technologies.
KEY QUOTES:
“Our decision to make a further investment in EeroQ, and to lead their next financing round, reflects both the strong progress of our ongoing technology cooperation and our deep conviction in the EeroQ team and platform. EeroQ’s helium-based architecture, combined with their breakthrough on control scalability, stands out as one of the most credible paths to industrially viable quantum computing we have evaluated. By leading this next round, SEALSQ secures a central role in shaping the trajectory of a key building block of our Quantum Highway, while reinforcing our Quantum Made in USA strategy at a moment when sovereign quantum capabilities are becoming a strategic priority for governments and enterprises worldwide.”
Carlos Moreira, Founder and CEO, SEALSQ
“SEALSQ’s decision to deepen its commitment through an additional investment and to lead our upcoming financing round is a powerful endorsement of EeroQ’s technology and long-term vision. Beyond capital, SEALSQ brings a unique combination of secure semiconductor expertise, post-quantum cryptography leadership, and a clear industrial roadmap through their Quantum Highway. Having them as our lead investor positions EeroQ to accelerate our path toward scalable, ethical, and secure quantum computing built on the mature CMOS fabrication ecosystem.”
Nick Farina, Co-Founder and CEO, EeroQ
