LuxQuanta, a deep tech company specializing in quantum cybersecurity, announces the successful closing of an €8 million Series A funding round. Led by Big Sur Ventures, with A&G as the largest investor, the round includes new investors GMV, Wayra, and the EIC Fund, along with renewed commitments from existing investors Corning and GTD. The operation is further strengthened by soft funding from the European Innovation Council (EIC) through the EIC Accelerator program, following the €2.5 million grant awarded to LuxQuanta in March 2024.
This funding round marks LuxQuanta’s transition from a promising startup to a global scale-up, enabling it to scale production, advance research and development in quantum technologies and integrated photonics, expand its commercial, technical, and operational teams, and accelerate its international market expansion. With its disruptive Continuous Variable Quantum Key Distribution (CV-QKD) technology, LuxQuanta is poised to democratize quantum security, offering robust, scalable, and accessible solutions for telecommunications, governments, data centers, financial institutions, and the critical infrastructure, industrial, and energy sectors.
Addressing the Quantum Threat
The rise of quantum computing poses a major risk to current encryption systems, with attacks such as “harvest now, decrypt later” threatening data security. The transition toward quantum-secure infrastructures is a complex, long-term process requiring immediate action if public and private institutions wish to keep their confidential data protected. LuxQuanta’s flagship product, NOVA LQ®, whose second generation was launched in March 2025, is designed to address this challenge through seamless integration into existing optical networks, offering unprecedented security and scalability. Its main features include:
• Validated security: implements the Gaussian Modulated Coherent States (GMCS) CV-QKD protocol, rigorously tested and 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 network expansion costs without compromising security.
• Standards-based interoperability: compliant 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 generation rates and operates with channel loss up to 20 dB, maximizing efficiency and range.
A Vision with Global Impact
Founded in May 2021 as a spin-off from ICFO, a leading R&D center focused on photonic sciences and based in Barcelona, LuxQuanta has rapidly developed its CV-QKD technology, achieving multimillion-euro sales in more than a dozen European countries, with deployments across the Asia-Pacific, Latin America, and the United States.
“This Series A round is a tremendous validation of our vision to secure global communications in the quantum era,” said Vanesa Díaz, CEO of LuxQuanta. “This investment allows us to scale operations, enhance our technology, and expand globally. The path to quantum-secure networks is crucial, and it starts now. We are committed to making quantum security accessible and reliable for organizations and enterprises worldwide.”
Strategic Partnerships and Investor Confidence
Big Sur Ventures, a Spanish venture capital firm specializing in deep tech and disruptive science, contributes 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. “Its focus on integrated photonics is a key differentiator, and we are delighted to support its mission to set a global standard for quantum-secure infrastructure.”
A&G Energy Transition Tech Fund, the investment strategy managed by A&G Global Investors, brings strategic insight to LuxQuanta’s mission. “LuxQuanta’s quantum-secure solutions are especially well-positioned to protect critical environments, aligning perfectly with our focus on essential sectors,” said Jesús Lozano, Director at A&G Global Investors. “We are excited to support its growth and facilitate the hybrid adoption of quantum technologies in industries where security and reliability are paramount.”
Wayra, Telefónica’s corporate venture capital division, reaffirmed its support for LuxQuanta’s mission. “For more than a decade, Telefónica has been a pioneer in quantum communications, and our collaboration with LuxQuanta is driving transformation across the sector,” said Paloma Castellano, Managing Director of Wayra Spain. “This funding accelerates the deployment of CV-QKD solutions, enhancing customer security and reinforcing Europe’s technological sovereignty.”
GMV, a technology company with extensive experience in space, cybersecurity, defense, intelligent transport systems, and telecommunications, strengthens LuxQuanta’s technical and market capabilities. “LuxQuanta’s CV-QKD technology represents a major breakthrough in communication security for the quantum era,” said Jesús B. Serrano, CEO of GMV. “We are proud to partner with LuxQuanta to accelerate industry transformation, foster European innovation in quantum-secure cybersecurity, and deliver cutting-edge, highly secure solutions for critical sectors worldwide.”
The European Innovation Council (EIC), through its Accelerator program, reinforces LuxQuanta’s role in developing Europe’s quantum ecosystem. “LuxQuanta’s innovative CV-QKD solutions are essential to safeguarding the future of digital communications,” said Lars Frølund, Fund Board Member of the EIC. “Our investment reflects confidence in LuxQuanta’s potential to lead the global transition toward quantum-secure infrastructure, contributing to Europe’s leadership in quantum innovation.”
Looking Ahead
Headquartered in Barcelona with a business unit in Madrid, LuxQuanta’s team comprises professionals from more than 12 nationalities. The company plans to move to larger facilities, increase its production capacity, and selectively expand into new markets across Europe and beyond. The funding will also drive advancements in integrated photonics, a key technology for reducing costs and improving scalability, positioning LuxQuanta to meet the growing global demand for quantum security solutions.
About LuxQuanta
LuxQuanta is a quantum cybersecurity company specializing in Continuous Variable Quantum Key Distribution (CV-QKD). The company develops and commercializes quantum-secure encryption solutions to protect global communications against present and future threats, including quantum computing. With a mission to make quantum security accessible, LuxQuanta provides solutions for telecommunications, public administrations, data centers, and critical infrastructure sectors worldwide.
For more information: www.luxquanta.com
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