SEALSQ enhances quantum strategy with fresh EeroQ funding

SEALSQ has reaffirmed its commitment to the “Quantum Made in USA” strategy by making an additional strategic investment in the US-based quantum startup EeroQ. This move is a significant step towards establishing a vertically integrated quantum and post-quantum security ecosystem that spans both the US and Europe. The investment underscores SEALSQ’s ambition to play a leading role in the development of scalable quantum computing technologies.

The partnership between SEALSQ and EeroQ is particularly relevant for eeNews Europe readers as it showcases a hardware-focused approach to quantum computing. By directly linking quantum processors with post-quantum secure semiconductors, the collaboration highlights the convergence of quantum R&D and semiconductor manufacturing. This alignment of investment strategies reflects a growing trend in the industry towards practical and tangible advancements in quantum technology.

Scaling quantum hardware, the practical way

SEALSQ Corp, based in Geneva and listed on NASDAQ as LAES, announced its increased investment in EeroQ on February 19, 2026. This investment builds upon SEALSQ’s initial stake in EeroQ made in December 2025 and is part of the SEALQUANTUM.com Quantum Investment Fund, a platform with a funding pool exceeding $100 million. The goal of the fund is to support selected quantum computing ventures in both Europe and the US.

EeroQ’s quantum computing architecture is based on utilizing the spins of electrons floating on superfluid helium. While the concept has roots dating back to the early 2000s, recent advancements in materials, microfabrication, and cryogenics have made it feasible to scale up. The company envisions an ultra-compact quantum processor that is compatible with CMOS technology and has the potential to scale from thousands to millions of qubits.

Building a quantum security stack

SEALSQ views its investment in EeroQ as a crucial component of its Quantum Highway strategy, which aims to integrate post-quantum cryptography, secure semiconductor manufacturing, and future quantum computers into a cohesive and secure stack. Through this partnership, SEALSQ and EeroQ plan to develop a proof-of-concept at the SEALSQ Quantum Center of Excellence in Geneva, showcasing the integration of secure hardware, post-quantum cryptography, and emerging quantum processing technologies.

Carlos Moreira, the Founder and CEO of SEALSQ, emphasized the significance of the extended investment in EeroQ, stating that it marks a key milestone in the company’s Quantum Made in USA strategy. EeroQ CEO Nick Farina expressed gratitude for the continued support from SEALSQ, highlighting the validation of their technology and long-term vision for scalable and secure quantum systems.

Europe, the US, and the long game

SEALSQ’s investments are not limited to the US, as the company has been actively supporting projects in Europe as well. These projects range from post-quantum semiconductor personalization in Spain to ASIC design in France and satellite-based post-quantum communications. EeroQ’s focus on US-centric development and fabrication aligns with the broader geopolitical trend towards sovereign quantum technologies.

With a 9,600-square-foot quantum R&D facility in Chicago and a commitment to ethical quantum development, EeroQ, led by CTO Steve Lyon and CSO Johannes Pollanen, is well-positioned to contribute to the advancement of quantum technologies. SEALSQ’s investment in EeroQ reflects a strategic decision to support scalable, manufacturable, and ethically governed quantum systems, positioning both companies for success in the evolving quantum landscape.