LuxQuanta, a pioneering deep tech company specializing in quantum cybersecurity, announced the successful closing of its €8 million Series A funding round. Led by Big Sur Ventures, and with support of A&G as the main investor, the round also includes new investors GMV, Wayra and the EIC Fund, alongside renewed commitments from existing investors Corning, and GTD. The investment is further bolstered by the soft financing from the European Investment Committee (EIC) through the EIC Accelerator program, following the €2.5 million grant awarded to LuxQuanta in March 2024.
This milestone funding marks LuxQuanta’s transition from a promising startup to a global scale-up, enabling 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 cutting-edge Continuous-Variable Quantum Key Distribution (CV-QKD) technology, LuxQuanta is poised to democratize quantum-safe communications, delivering robust, scalable, and accessible solutions for telecommunications, governments, data centers, financial institutions, critical infrastructures and industrial and energy sectors.
Addressing the Quantum Threat
The rise of quantum computing poses a significant risk to current encryption systems, with attacks such as “harvest now, decrypt later” threatening data security today. Transitioning to quantum-safe infrastructures is also a complex, long-term process that demands immediate action if public and private entities want to remain its confidential data protected. LuxQuanta’s flagship product NOVA LQ® launched in its second generation in March 2025, is designed to ease this challenge by integrating seamlessly into existing optical networks while offering unmatched security and scalability. Key features include:
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Validated Security: Implements the rigorously tested Gaussian-modulated coherent-state (GMCS) CV-QKD protocol, proven secure against collective attacks under finite-size conditions.
Operational Reliability: Built with production-grade hardware and custom electronics for superior stability, low failure rates, and reduced maintenance costs.
Unmatched Scalability: Supports point-to-point (P2P) and point-to-multipoint (P2MP) configurations, halving costs for network expansion while maintaining security.
Standards-Based Interoperability: Complies with ETSI GS QKD 014 and SKIP interfaces for seamless integration with multi-vendor encryptors and key management systems.
Superior Performance: Delivers high secret key rates (>100 kbps at 4 dB loss, 1 kbps at 16 dB) and operates up to 20 dB channel loss, maximizing efficiency and reach.
A Vision for Global Impact
Founded in May 2021 as a spin-off from ICFO, a renowned R&D center focused on photonic sciences in Barcelona, LuxQuanta has rapidly matured its CV-QKD technology, achieving multi-million euro sales across 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,” said 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.”