Quantum security developer LuxQuanta raises € 8 million in Series A funding

LuxQuanta, a company specializing in quantum network security, recently announced the successful completion of an 8 million euro Series A funding round. This round of financing is led by Big Sur Ventures, with A&G as the main investor providing support. New investors include GMV, Wayra, and EIC Fund, as well as existing investors Corning and GTD.

The investment is bolstered by the soft financing from the European Investment Committee through the EIC Accelerator program, following the €2.5 million grant awarded to LuxQuanta in March 2024.

The new funding will enable the company to scale production, advance research and development in quantum technologies and integrated photonics, expand its commercial, technical, and operational teams, and accelerate international market expansion.

With its Continuous-Variable Quantum Key Distribution technology, LuxQuanta says it is “poised to democratize quantum-safe communications, delivering robust, scalable solutions for telecommunications, data centers, financial institutions, and industrial and energy sectors.”

LuxQuanta’s NOVA LQ keeps communications secure in the quantum era

Founded in May 2021 as a spin-off from ICFO, an R&D center focused on photonic sciences based in Barcelona, LuxQuanta has developed its CV-QKD technology, achieving multi-million euro sales across more than dozens of European countries and deployments in Asia Pacific, Latin America, and the USA.

“This Series A funding is a powerful validation of our vision to safeguard global communications in the quantum era,” commented Vanesa Díaz, CEO of LuxQuanta. “With this investment, we will scale our operations, enhance our technology, and expand our global footprint. The journey to quantum-safe networks is critical, and it starts now. We’re committed to making quantum security accessible and reliable for organizations worldwide.”

LuxQuanta’s flagship product NOVA LQ® launched in its second generation in March 2025, is designed to be integrated into existing optical networks while offering security and scalability. Key features include:

Implementing the Gaussian-modulated coherent-state CV-QKD protocol to provide security against attacks under finite-size conditions.
Supporting point-to-point and point-to-multipoint configurations, halving costs for network expansion while maintaining security.
Compliance with ETSI GS QKD 014 and SKIP interfaces for seamless integration with multi-vendor encryptors and key management systems.
Delivering high secret key rates (>100 kbps at 4 dB loss, 1 kbps at 16 dB) and operating up to 20 dB channel loss.
Investor comments

Big Sur Ventures, a Spanish venture capital firm specializing in deep tech/breakthrough science, brings both capital and strategic expertise to support LuxQuanta’s growth. “LuxQuanta’s proven CV-QKD technology and successful deployments position it as a leader in quantum cybersecurity,” said Ismael Almazán, Partner at Big Sur Ventures. “Their focus on integrated photonics is a game-changer, and we’re thrilled to support their mission to set a global standard for quantum-safe infrastructure.”

Jesús Lozano, Director at A&G Global Investors, commented, “LuxQuanta’s quantum-safe solutions are uniquely positioned to secure critical environments, aligning perfectly with our focus on essential sectors. We are excited to support their growth and facilitate the hybrid adoption of quantum technologies in industries where security and reliability are paramount.”

Wayra, Telefónica´s corporate venture capital arm, reaffirmed its commitment to LuxQuanta. “For over a decade, Telefónica has pioneered quantum communications, and our partnership with LuxQuanta is driving industry transformation,” said Paloma Castellano, Managing Director at Wayra Spain. “This funding accelerates the deployment of CV-QKD solutions, enhancing security for our customers and strengthening Europe’s technological sovereignty.”

“LuxQuanta’s CV-QKD technology represents a breakthrough in securing communications for the quantum age,” said Jesús B. Serrano, CEO of GMV. “We are proud to partner with LuxQuanta to drive industry transformation, continue fostering European innovation in quantum-safe cybersecurity, and ensure the provision of the state-of-the-art and highly secure solutions for our customers in critical sectors worldwide.”

Source: optics.org