Series A · Cybersecurity · Barcelona, Spain · Founded 2021 · 20–30 employees
LuxQuanta is a deep tech quantum cybersecurity company founded in May 2021 as a spin-off from ICFO (Institute of Photonic Sciences) in Barcelona. The startup specializes in Continuous-Variable Quantum Key Distribution (CV-QKD) technology that provides ultra-secure data encryption and quantum-safe communications. Their flagship product NOVA LQ enables quantum-secure communications that are easier to integrate into existing optical network infrastructures compared to traditional QKD systems. LuxQuanta recently closed a €8 million Series A funding round led by Big Sur Ventures in October 2025, bringing their total funding to over €9 million. The company has achieved multi-million euro sales across dozens of European countries and international deployments in Asia Pacific, Latin America, and the USA. Notable for their focus on making quantum security accessible and scalable worldwide, they serve telecommunications, government, data centers, and critical infrastructure sectors.
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