LuxQuanta is Accelerating the Global Deployment of Quantum-Safe Cybersecurity Solutions

LuxQuanta, enabling a new age of security in telecommunications with Quantum Key Distribution (QKD) systems, led by Vanesa Diaz, Ernest López, Dr. Sebastian Etcheverry, and others, has secured €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 funding marks LuxQuanta’s transition from startup to global scale-up, supporting scaled production, R&D in quantum technologies and integrated photonics, team expansion, and international market growth. With its Continuous-Variable Quantum Key Distribution (CV-QKD) technology, LuxQuanta aims to deliver robust, scalable, and accessible quantum-safe communications for telecoms, governments, data centers, financial institutions, critical infrastructure, and industrial and energy sectors.

The rise of quantum computing threatens current encryption systems, making the transition to quantum-safe infrastructures urgent. LuxQuanta’s second-generation NOVA LQ® (launched March 2025) addresses this challenge by integrating seamlessly into existing optical networks while providing robust security, reliability, and scalability. Key features include validated security with the Gaussian-modulated coherent-state (GMCS) CV-QKD protocol, production-grade hardware for operational reliability, support for point-to-point and point-to-multipoint networks to reduce expansion costs, standards-based interoperability with multi-vendor encryptors, and high performance with secret key rates exceeding 100 kbps at 4 dB loss and operation up to 20 dB channel loss.

Founded in May 2021 as a spin-off from ICFO in Barcelona, LuxQuanta has quickly advanced its CV-QKD technology, achieving multi-million euro sales across Europe and deployments in Asia-Pacific, Latin America, and the USA.

Headquartered in Barcelona with a business unit in Madrid, LuxQuanta employs a diverse team from over 12 nationalities. The company plans to move to larger facilities, scale production, and expand selectively into new markets, while advancing integrated photonics to reduce costs and enhance scalability, meeting rising global demand for quantum-safe solutions.